packages feed

visie (empty) → 0.6.0.0

raw patch · 12 files changed

+23734/−0 lines, 12 filesdep +aesondep +basedep +browse

Dependencies added: aeson, base, browse, scientific, text, time, vector, visie

Files

+ LICENSE view
@@ -0,0 +1,16 @@+Poetic License+==============++© 2014 Francesco Occhipinti++This work ‘as-is’ I provide.+No warranty express or implied.+  For no purpose fit,+  not even a wee bit.+Liability for damages denied.++Permission is granted hereby,+to copy, share, and modify.+  Use it with glee,+  for profit or free.+On this notice, these rights rely.
+ data/d3.v2.js view
@@ -0,0 +1,7026 @@+(function() {+  function d3_class(ctor, properties) {+    try {+      for (var key in properties) {+        Object.defineProperty(ctor.prototype, key, {+          value: properties[key],+          enumerable: false+        });+      }+    } catch (e) {+      ctor.prototype = properties;+    }+  }+  function d3_arrayCopy(pseudoarray) {+    var i = -1, n = pseudoarray.length, array = [];+    while (++i < n) array.push(pseudoarray[i]);+    return array;+  }+  function d3_arraySlice(pseudoarray) {+    return Array.prototype.slice.call(pseudoarray);+  }+  function d3_Map() {}+  function d3_identity(d) {+    return d;+  }+  function d3_this() {+    return this;+  }+  function d3_true() {+    return true;+  }+  function d3_functor(v) {+    return typeof v === "function" ? v : function() {+      return v;+    };+  }+  function d3_rebind(target, source, method) {+    return function() {+      var value = method.apply(source, arguments);+      return arguments.length ? target : value;+    };+  }+  function d3_number(x) {+    return x != null && !isNaN(x);+  }+  function d3_zipLength(d) {+    return d.length;+  }+  function d3_splitter(d) {+    return d == null;+  }+  function d3_collapse(s) {+    return s.trim().replace(/\s+/g, " ");+  }+  function d3_range_integerScale(x) {+    var k = 1;+    while (x * k % 1) k *= 10;+    return k;+  }+  function d3_dispatch() {}+  function d3_dispatch_event(dispatch) {+    function event() {+      var z = listeners, i = -1, n = z.length, l;+      while (++i < n) if (l = z[i].on) l.apply(this, arguments);+      return dispatch;+    }+    var listeners = [], listenerByName = new d3_Map;+    event.on = function(name, listener) {+      var l = listenerByName.get(name), i;+      if (arguments.length < 2) return l && l.on;+      if (l) {+        l.on = null;+        listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1));+        listenerByName.remove(name);+      }+      if (listener) listeners.push(listenerByName.set(name, {+        on: listener+      }));+      return dispatch;+    };+    return event;+  }+  function d3_format_precision(x, p) {+    return p - (x ? 1 + Math.floor(Math.log(x + Math.pow(10, 1 + Math.floor(Math.log(x) / Math.LN10) - p)) / Math.LN10) : 1);+  }+  function d3_format_typeDefault(x) {+    return x + "";+  }+  function d3_format_group(value) {+    var i = value.lastIndexOf("."), f = i >= 0 ? value.substring(i) : (i = value.length, ""), t = [];+    while (i > 0) t.push(value.substring(i -= 3, i + 3));+    return t.reverse().join(",") + f;+  }+  function d3_formatPrefix(d, i) {+    var k = Math.pow(10, Math.abs(8 - i) * 3);+    return {+      scale: i > 8 ? function(d) {+        return d / k;+      } : function(d) {+        return d * k;+      },+      symbol: d+    };+  }+  function d3_ease_clamp(f) {+    return function(t) {+      return t <= 0 ? 0 : t >= 1 ? 1 : f(t);+    };+  }+  function d3_ease_reverse(f) {+    return function(t) {+      return 1 - f(1 - t);+    };+  }+  function d3_ease_reflect(f) {+    return function(t) {+      return .5 * (t < .5 ? f(2 * t) : 2 - f(2 - 2 * t));+    };+  }+  function d3_ease_identity(t) {+    return t;+  }+  function d3_ease_poly(e) {+    return function(t) {+      return Math.pow(t, e);+    };+  }+  function d3_ease_sin(t) {+    return 1 - Math.cos(t * Math.PI / 2);+  }+  function d3_ease_exp(t) {+    return Math.pow(2, 10 * (t - 1));+  }+  function d3_ease_circle(t) {+    return 1 - Math.sqrt(1 - t * t);+  }+  function d3_ease_elastic(a, p) {+    var s;+    if (arguments.length < 2) p = .45;+    if (arguments.length < 1) {+      a = 1;+      s = p / 4;+    } else s = p / (2 * Math.PI) * Math.asin(1 / a);+    return function(t) {+      return 1 + a * Math.pow(2, 10 * -t) * Math.sin((t - s) * 2 * Math.PI / p);+    };+  }+  function d3_ease_back(s) {+    if (!s) s = 1.70158;+    return function(t) {+      return t * t * ((s + 1) * t - s);+    };+  }+  function d3_ease_bounce(t) {+    return t < 1 / 2.75 ? 7.5625 * t * t : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75 : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375 : 7.5625 * (t -= 2.625 / 2.75) * t + .984375;+  }+  function d3_eventCancel() {+    d3.event.stopPropagation();+    d3.event.preventDefault();+  }+  function d3_eventSource() {+    var e = d3.event, s;+    while (s = e.sourceEvent) e = s;+    return e;+  }+  function d3_eventDispatch(target) {+    var dispatch = new d3_dispatch, i = 0, n = arguments.length;+    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);+    dispatch.of = function(thiz, argumentz) {+      return function(e1) {+        try {+          var e0 = e1.sourceEvent = d3.event;+          e1.target = target;+          d3.event = e1;+          dispatch[e1.type].apply(thiz, argumentz);+        } finally {+          d3.event = e0;+        }+      };+    };+    return dispatch;+  }+  function d3_transform(m) {+    var r0 = [ m.a, m.b ], r1 = [ m.c, m.d ], kx = d3_transformNormalize(r0), kz = d3_transformDot(r0, r1), ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0;+    if (r0[0] * r1[1] < r1[0] * r0[1]) {+      r0[0] *= -1;+      r0[1] *= -1;+      kx *= -1;+      kz *= -1;+    }+    this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_transformDegrees;+    this.translate = [ m.e, m.f ];+    this.scale = [ kx, ky ];+    this.skew = ky ? Math.atan2(kz, ky) * d3_transformDegrees : 0;+  }+  function d3_transformDot(a, b) {+    return a[0] * b[0] + a[1] * b[1];+  }+  function d3_transformNormalize(a) {+    var k = Math.sqrt(d3_transformDot(a, a));+    if (k) {+      a[0] /= k;+      a[1] /= k;+    }+    return k;+  }+  function d3_transformCombine(a, b, k) {+    a[0] += k * b[0];+    a[1] += k * b[1];+    return a;+  }+  function d3_interpolateByName(name) {+    return name == "transform" ? d3.interpolateTransform : d3.interpolate;+  }+  function d3_uninterpolateNumber(a, b) {+    b = b - (a = +a) ? 1 / (b - a) : 0;+    return function(x) {+      return (x - a) * b;+    };+  }+  function d3_uninterpolateClamp(a, b) {+    b = b - (a = +a) ? 1 / (b - a) : 0;+    return function(x) {+      return Math.max(0, Math.min(1, (x - a) * b));+    };+  }+  function d3_Color() {}+  function d3_rgb(r, g, b) {+    return new d3_Rgb(r, g, b);+  }+  function d3_Rgb(r, g, b) {+    this.r = r;+    this.g = g;+    this.b = b;+  }+  function d3_rgb_hex(v) {+    return v < 16 ? "0" + Math.max(0, v).toString(16) : Math.min(255, v).toString(16);+  }+  function d3_rgb_parse(format, rgb, hsl) {+    var r = 0, g = 0, b = 0, m1, m2, name;+    m1 = /([a-z]+)\((.*)\)/i.exec(format);+    if (m1) {+      m2 = m1[2].split(",");+      switch (m1[1]) {+       case "hsl":+        {+          return hsl(parseFloat(m2[0]), parseFloat(m2[1]) / 100, parseFloat(m2[2]) / 100);+        }+       case "rgb":+        {+          return rgb(d3_rgb_parseNumber(m2[0]), d3_rgb_parseNumber(m2[1]), d3_rgb_parseNumber(m2[2]));+        }+      }+    }+    if (name = d3_rgb_names.get(format)) return rgb(name.r, name.g, name.b);+    if (format != null && format.charAt(0) === "#") {+      if (format.length === 4) {+        r = format.charAt(1);+        r += r;+        g = format.charAt(2);+        g += g;+        b = format.charAt(3);+        b += b;+      } else if (format.length === 7) {+        r = format.substring(1, 3);+        g = format.substring(3, 5);+        b = format.substring(5, 7);+      }+      r = parseInt(r, 16);+      g = parseInt(g, 16);+      b = parseInt(b, 16);+    }+    return rgb(r, g, b);+  }+  function d3_rgb_hsl(r, g, b) {+    var min = Math.min(r /= 255, g /= 255, b /= 255), max = Math.max(r, g, b), d = max - min, h, s, l = (max + min) / 2;+    if (d) {+      s = l < .5 ? d / (max + min) : d / (2 - max - min);+      if (r == max) h = (g - b) / d + (g < b ? 6 : 0); else if (g == max) h = (b - r) / d + 2; else h = (r - g) / d + 4;+      h *= 60;+    } else {+      s = h = 0;+    }+    return d3_hsl(h, s, l);+  }+  function d3_rgb_lab(r, g, b) {+    r = d3_rgb_xyz(r);+    g = d3_rgb_xyz(g);+    b = d3_rgb_xyz(b);+    var x = d3_xyz_lab((.4124564 * r + .3575761 * g + .1804375 * b) / d3_lab_X), y = d3_xyz_lab((.2126729 * r + .7151522 * g + .072175 * b) / d3_lab_Y), z = d3_xyz_lab((.0193339 * r + .119192 * g + .9503041 * b) / d3_lab_Z);+    return d3_lab(116 * y - 16, 500 * (x - y), 200 * (y - z));+  }+  function d3_rgb_xyz(r) {+    return (r /= 255) <= .04045 ? r / 12.92 : Math.pow((r + .055) / 1.055, 2.4);+  }+  function d3_rgb_parseNumber(c) {+    var f = parseFloat(c);+    return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f;+  }+  function d3_hsl(h, s, l) {+    return new d3_Hsl(h, s, l);+  }+  function d3_Hsl(h, s, l) {+    this.h = h;+    this.s = s;+    this.l = l;+  }+  function d3_hsl_rgb(h, s, l) {+    function v(h) {+      if (h > 360) h -= 360; else if (h < 0) h += 360;+      if (h < 60) return m1 + (m2 - m1) * h / 60;+      if (h < 180) return m2;+      if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60;+      return m1;+    }+    function vv(h) {+      return Math.round(v(h) * 255);+    }+    var m1, m2;+    h = h % 360;+    if (h < 0) h += 360;+    s = s < 0 ? 0 : s > 1 ? 1 : s;+    l = l < 0 ? 0 : l > 1 ? 1 : l;+    m2 = l <= .5 ? l * (1 + s) : l + s - l * s;+    m1 = 2 * l - m2;+    return d3_rgb(vv(h + 120), vv(h), vv(h - 120));+  }+  function d3_hcl(h, c, l) {+    return new d3_Hcl(h, c, l);+  }+  function d3_Hcl(h, c, l) {+    this.h = h;+    this.c = c;+    this.l = l;+  }+  function d3_hcl_lab(h, c, l) {+    return d3_lab(l, Math.cos(h *= Math.PI / 180) * c, Math.sin(h) * c);+  }+  function d3_lab(l, a, b) {+    return new d3_Lab(l, a, b);+  }+  function d3_Lab(l, a, b) {+    this.l = l;+    this.a = a;+    this.b = b;+  }+  function d3_lab_rgb(l, a, b) {+    var y = (l + 16) / 116, x = y + a / 500, z = y - b / 200;+    x = d3_lab_xyz(x) * d3_lab_X;+    y = d3_lab_xyz(y) * d3_lab_Y;+    z = d3_lab_xyz(z) * d3_lab_Z;+    return d3_rgb(d3_xyz_rgb(3.2404542 * x - 1.5371385 * y - .4985314 * z), d3_xyz_rgb(-.969266 * x + 1.8760108 * y + .041556 * z), d3_xyz_rgb(.0556434 * x - .2040259 * y + 1.0572252 * z));+  }+  function d3_lab_hcl(l, a, b) {+    return d3_hcl(Math.atan2(b, a) / Math.PI * 180, Math.sqrt(a * a + b * b), l);+  }+  function d3_lab_xyz(x) {+    return x > .206893034 ? x * x * x : (x - 4 / 29) / 7.787037;+  }+  function d3_xyz_lab(x) {+    return x > .008856 ? Math.pow(x, 1 / 3) : 7.787037 * x + 4 / 29;+  }+  function d3_xyz_rgb(r) {+    return Math.round(255 * (r <= .00304 ? 12.92 * r : 1.055 * Math.pow(r, 1 / 2.4) - .055));+  }+  function d3_selection(groups) {+    d3_arraySubclass(groups, d3_selectionPrototype);+    return groups;+  }+  function d3_selection_selector(selector) {+    return function() {+      return d3_select(selector, this);+    };+  }+  function d3_selection_selectorAll(selector) {+    return function() {+      return d3_selectAll(selector, this);+    };+  }+  function d3_selection_attr(name, value) {+    function attrNull() {+      this.removeAttribute(name);+    }+    function attrNullNS() {+      this.removeAttributeNS(name.space, name.local);+    }+    function attrConstant() {+      this.setAttribute(name, value);+    }+    function attrConstantNS() {+      this.setAttributeNS(name.space, name.local, value);+    }+    function attrFunction() {+      var x = value.apply(this, arguments);+      if (x == null) this.removeAttribute(name); else this.setAttribute(name, x);+    }+    function attrFunctionNS() {+      var x = value.apply(this, arguments);+      if (x == null) this.removeAttributeNS(name.space, name.local); else this.setAttributeNS(name.space, name.local, x);+    }+    name = d3.ns.qualify(name);+    return value == null ? name.local ? attrNullNS : attrNull : typeof value === "function" ? name.local ? attrFunctionNS : attrFunction : name.local ? attrConstantNS : attrConstant;+  }+  function d3_selection_classedRe(name) {+    return new RegExp("(?:^|\\s+)" + d3.requote(name) + "(?:\\s+|$)", "g");+  }+  function d3_selection_classed(name, value) {+    function classedConstant() {+      var i = -1;+      while (++i < n) name[i](this, value);+    }+    function classedFunction() {+      var i = -1, x = value.apply(this, arguments);+      while (++i < n) name[i](this, x);+    }+    name = name.trim().split(/\s+/).map(d3_selection_classedName);+    var n = name.length;+    return typeof value === "function" ? classedFunction : classedConstant;+  }+  function d3_selection_classedName(name) {+    var re = d3_selection_classedRe(name);+    return function(node, value) {+      if (c = node.classList) return value ? c.add(name) : c.remove(name);+      var c = node.className, cb = c.baseVal != null, cv = cb ? c.baseVal : c;+      if (value) {+        re.lastIndex = 0;+        if (!re.test(cv)) {+          cv = d3_collapse(cv + " " + name);+          if (cb) c.baseVal = cv; else node.className = cv;+        }+      } else if (cv) {+        cv = d3_collapse(cv.replace(re, " "));+        if (cb) c.baseVal = cv; else node.className = cv;+      }+    };+  }+  function d3_selection_style(name, value, priority) {+    function styleNull() {+      this.style.removeProperty(name);+    }+    function styleConstant() {+      this.style.setProperty(name, value, priority);+    }+    function styleFunction() {+      var x = value.apply(this, arguments);+      if (x == null) this.style.removeProperty(name); else this.style.setProperty(name, x, priority);+    }+    return value == null ? styleNull : typeof value === "function" ? styleFunction : styleConstant;+  }+  function d3_selection_property(name, value) {+    function propertyNull() {+      delete this[name];+    }+    function propertyConstant() {+      this[name] = value;+    }+    function propertyFunction() {+      var x = value.apply(this, arguments);+      if (x == null) delete this[name]; else this[name] = x;+    }+    return value == null ? propertyNull : typeof value === "function" ? propertyFunction : propertyConstant;+  }+  function d3_selection_dataNode(data) {+    return {+      __data__: data+    };+  }+  function d3_selection_filter(selector) {+    return function() {+      return d3_selectMatches(this, selector);+    };+  }+  function d3_selection_sortComparator(comparator) {+    if (!arguments.length) comparator = d3.ascending;+    return function(a, b) {+      return comparator(a && a.__data__, b && b.__data__);+    };+  }+  function d3_selection_on(type, listener, capture) {+    function onRemove() {+      var wrapper = this[name];+      if (wrapper) {+        this.removeEventListener(type, wrapper, wrapper.$);+        delete this[name];+      }+    }+    function onAdd() {+      function wrapper(e) {+        var o = d3.event;+        d3.event = e;+        args[0] = node.__data__;+        try {+          listener.apply(node, args);+        } finally {+          d3.event = o;+        }+      }+      var node = this, args = arguments;+      onRemove.call(this);+      this.addEventListener(type, this[name] = wrapper, wrapper.$ = capture);+      wrapper._ = listener;+    }+    var name = "__on" + type, i = type.indexOf(".");+    if (i > 0) type = type.substring(0, i);+    return listener ? onAdd : onRemove;+  }+  function d3_selection_each(groups, callback) {+    for (var j = 0, m = groups.length; j < m; j++) {+      for (var group = groups[j], i = 0, n = group.length, node; i < n; i++) {+        if (node = group[i]) callback(node, i, j);+      }+    }+    return groups;+  }+  function d3_selection_enter(selection) {+    d3_arraySubclass(selection, d3_selection_enterPrototype);+    return selection;+  }+  function d3_transition(groups, id, time) {+    d3_arraySubclass(groups, d3_transitionPrototype);+    var tweens = new d3_Map, event = d3.dispatch("start", "end"), ease = d3_transitionEase;+    groups.id = id;+    groups.time = time;+    groups.tween = function(name, tween) {+      if (arguments.length < 2) return tweens.get(name);+      if (tween == null) tweens.remove(name); else tweens.set(name, tween);+      return groups;+    };+    groups.ease = function(value) {+      if (!arguments.length) return ease;+      ease = typeof value === "function" ? value : d3.ease.apply(d3, arguments);+      return groups;+    };+    groups.each = function(type, listener) {+      if (arguments.length < 2) return d3_transition_each.call(groups, type);+      event.on(type, listener);+      return groups;+    };+    d3.timer(function(elapsed) {+      return d3_selection_each(groups, function(node, i, j) {+        function start(elapsed) {+          if (lock.active > id) return stop();+          lock.active = id;+          tweens.forEach(function(key, value) {+            if (value = value.call(node, d, i)) {+              tweened.push(value);+            }+          });+          event.start.call(node, d, i);+          if (!tick(elapsed)) d3.timer(tick, 0, time);+          return 1;+        }+        function tick(elapsed) {+          if (lock.active !== id) return stop();+          var t = (elapsed - delay) / duration, e = ease(t), n = tweened.length;+          while (n > 0) {+            tweened[--n].call(node, e);+          }+          if (t >= 1) {+            stop();+            d3_transitionId = id;+            event.end.call(node, d, i);+            d3_transitionId = 0;+            return 1;+          }+        }+        function stop() {+          if (!--lock.count) delete node.__transition__;+          return 1;+        }+        var tweened = [], delay = node.delay, duration = node.duration, lock = (node = node.node).__transition__ || (node.__transition__ = {+          active: 0,+          count: 0+        }), d = node.__data__;+        ++lock.count;+        delay <= elapsed ? start(elapsed) : d3.timer(start, delay, time);+      });+    }, 0, time);+    return groups;+  }+  function d3_transition_each(callback) {+    var id = d3_transitionId, ease = d3_transitionEase, delay = d3_transitionDelay, duration = d3_transitionDuration;+    d3_transitionId = this.id;+    d3_transitionEase = this.ease();+    d3_selection_each(this, function(node, i, j) {+      d3_transitionDelay = node.delay;+      d3_transitionDuration = node.duration;+      callback.call(node = node.node, node.__data__, i, j);+    });+    d3_transitionId = id;+    d3_transitionEase = ease;+    d3_transitionDelay = delay;+    d3_transitionDuration = duration;+    return this;+  }+  function d3_tweenNull(d, i, a) {+    return a != "" && d3_tweenRemove;+  }+  function d3_tweenByName(b, name) {+    return d3.tween(b, d3_interpolateByName(name));+  }+  function d3_timer_step() {+    var elapsed, now = Date.now(), t1 = d3_timer_queue;+    while (t1) {+      elapsed = now - t1.then;+      if (elapsed >= t1.delay) t1.flush = t1.callback(elapsed);+      t1 = t1.next;+    }+    var delay = d3_timer_flush() - now;+    if (delay > 24) {+      if (isFinite(delay)) {+        clearTimeout(d3_timer_timeout);+        d3_timer_timeout = setTimeout(d3_timer_step, delay);+      }+      d3_timer_interval = 0;+    } else {+      d3_timer_interval = 1;+      d3_timer_frame(d3_timer_step);+    }+  }+  function d3_timer_flush() {+    var t0 = null, t1 = d3_timer_queue, then = Infinity;+    while (t1) {+      if (t1.flush) {+        delete d3_timer_byId[t1.callback.id];+        t1 = t0 ? t0.next = t1.next : d3_timer_queue = t1.next;+      } else {+        then = Math.min(then, t1.then + t1.delay);+        t1 = (t0 = t1).next;+      }+    }+    return then;+  }+  function d3_mousePoint(container, e) {+    var svg = container.ownerSVGElement || container;+    if (svg.createSVGPoint) {+      var point = svg.createSVGPoint();+      if (d3_mouse_bug44083 < 0 && (window.scrollX || window.scrollY)) {+        svg = d3.select(document.body).append("svg").style("position", "absolute").style("top", 0).style("left", 0);+        var ctm = svg[0][0].getScreenCTM();+        d3_mouse_bug44083 = !(ctm.f || ctm.e);+        svg.remove();+      }+      if (d3_mouse_bug44083) {+        point.x = e.pageX;+        point.y = e.pageY;+      } else {+        point.x = e.clientX;+        point.y = e.clientY;+      }+      point = point.matrixTransform(container.getScreenCTM().inverse());+      return [ point.x, point.y ];+    }+    var rect = container.getBoundingClientRect();+    return [ e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop ];+  }+  function d3_noop() {}+  function d3_scaleExtent(domain) {+    var start = domain[0], stop = domain[domain.length - 1];+    return start < stop ? [ start, stop ] : [ stop, start ];+  }+  function d3_scaleRange(scale) {+    return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range());+  }+  function d3_scale_nice(domain, nice) {+    var i0 = 0, i1 = domain.length - 1, x0 = domain[i0], x1 = domain[i1], dx;+    if (x1 < x0) {+      dx = i0, i0 = i1, i1 = dx;+      dx = x0, x0 = x1, x1 = dx;+    }+    if (nice = nice(x1 - x0)) {+      domain[i0] = nice.floor(x0);+      domain[i1] = nice.ceil(x1);+    }+    return domain;+  }+  function d3_scale_niceDefault() {+    return Math;+  }+  function d3_scale_linear(domain, range, interpolate, clamp) {+    function rescale() {+      var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear, uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;+      output = linear(domain, range, uninterpolate, interpolate);+      input = linear(range, domain, uninterpolate, d3.interpolate);+      return scale;+    }+    function scale(x) {+      return output(x);+    }+    var output, input;+    scale.invert = function(y) {+      return input(y);+    };+    scale.domain = function(x) {+      if (!arguments.length) return domain;+      domain = x.map(Number);+      return rescale();+    };+    scale.range = function(x) {+      if (!arguments.length) return range;+      range = x;+      return rescale();+    };+    scale.rangeRound = function(x) {+      return scale.range(x).interpolate(d3.interpolateRound);+    };+    scale.clamp = function(x) {+      if (!arguments.length) return clamp;+      clamp = x;+      return rescale();+    };+    scale.interpolate = function(x) {+      if (!arguments.length) return interpolate;+      interpolate = x;+      return rescale();+    };+    scale.ticks = function(m) {+      return d3_scale_linearTicks(domain, m);+    };+    scale.tickFormat = function(m) {+      return d3_scale_linearTickFormat(domain, m);+    };+    scale.nice = function() {+      d3_scale_nice(domain, d3_scale_linearNice);+      return rescale();+    };+    scale.copy = function() {+      return d3_scale_linear(domain, range, interpolate, clamp);+    };+    return rescale();+  }+  function d3_scale_linearRebind(scale, linear) {+    return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");+  }+  function d3_scale_linearNice(dx) {+    dx = Math.pow(10, Math.round(Math.log(dx) / Math.LN10) - 1);+    return dx && {+      floor: function(x) {+        return Math.floor(x / dx) * dx;+      },+      ceil: function(x) {+        return Math.ceil(x / dx) * dx;+      }+    };+  }+  function d3_scale_linearTickRange(domain, m) {+    var extent = d3_scaleExtent(domain), span = extent[1] - extent[0], step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)), err = m / span * step;+    if (err <= .15) step *= 10; else if (err <= .35) step *= 5; else if (err <= .75) step *= 2;+    extent[0] = Math.ceil(extent[0] / step) * step;+    extent[1] = Math.floor(extent[1] / step) * step + step * .5;+    extent[2] = step;+    return extent;+  }+  function d3_scale_linearTicks(domain, m) {+    return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));+  }+  function d3_scale_linearTickFormat(domain, m) {+    return d3.format(",." + Math.max(0, -Math.floor(Math.log(d3_scale_linearTickRange(domain, m)[2]) / Math.LN10 + .01)) + "f");+  }+  function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {+    var u = uninterpolate(domain[0], domain[1]), i = interpolate(range[0], range[1]);+    return function(x) {+      return i(u(x));+    };+  }+  function d3_scale_polylinear(domain, range, uninterpolate, interpolate) {+    var u = [], i = [], j = 0, k = Math.min(domain.length, range.length) - 1;+    if (domain[k] < domain[0]) {+      domain = domain.slice().reverse();+      range = range.slice().reverse();+    }+    while (++j <= k) {+      u.push(uninterpolate(domain[j - 1], domain[j]));+      i.push(interpolate(range[j - 1], range[j]));+    }+    return function(x) {+      var j = d3.bisect(domain, x, 1, k) - 1;+      return i[j](u[j](x));+    };+  }+  function d3_scale_log(linear, log) {+    function scale(x) {+      return linear(log(x));+    }+    var pow = log.pow;+    scale.invert = function(x) {+      return pow(linear.invert(x));+    };+    scale.domain = function(x) {+      if (!arguments.length) return linear.domain().map(pow);+      log = x[0] < 0 ? d3_scale_logn : d3_scale_logp;+      pow = log.pow;+      linear.domain(x.map(log));+      return scale;+    };+    scale.nice = function() {+      linear.domain(d3_scale_nice(linear.domain(), d3_scale_niceDefault));+      return scale;+    };+    scale.ticks = function() {+      var extent = d3_scaleExtent(linear.domain()), ticks = [];+      if (extent.every(isFinite)) {+        var i = Math.floor(extent[0]), j = Math.ceil(extent[1]), u = pow(extent[0]), v = pow(extent[1]);+        if (log === d3_scale_logn) {+          ticks.push(pow(i));+          for (; i++ < j; ) for (var k = 9; k > 0; k--) ticks.push(pow(i) * k);+        } else {+          for (; i < j; i++) for (var k = 1; k < 10; k++) ticks.push(pow(i) * k);+          ticks.push(pow(i));+        }+        for (i = 0; ticks[i] < u; i++) {}+        for (j = ticks.length; ticks[j - 1] > v; j--) {}+        ticks = ticks.slice(i, j);+      }+      return ticks;+    };+    scale.tickFormat = function(n, format) {+      if (arguments.length < 2) format = d3_scale_logFormat;+      if (arguments.length < 1) return format;+      var k = Math.max(.1, n / scale.ticks().length), f = log === d3_scale_logn ? (e = -1e-12, Math.floor) : (e = 1e-12, Math.ceil), e;+      return function(d) {+        return d / pow(f(log(d) + e)) <= k ? format(d) : "";+      };+    };+    scale.copy = function() {+      return d3_scale_log(linear.copy(), log);+    };+    return d3_scale_linearRebind(scale, linear);+  }+  function d3_scale_logp(x) {+    return Math.log(x < 0 ? 0 : x) / Math.LN10;+  }+  function d3_scale_logn(x) {+    return -Math.log(x > 0 ? 0 : -x) / Math.LN10;+  }+  function d3_scale_pow(linear, exponent) {+    function scale(x) {+      return linear(powp(x));+    }+    var powp = d3_scale_powPow(exponent), powb = d3_scale_powPow(1 / exponent);+    scale.invert = function(x) {+      return powb(linear.invert(x));+    };+    scale.domain = function(x) {+      if (!arguments.length) return linear.domain().map(powb);+      linear.domain(x.map(powp));+      return scale;+    };+    scale.ticks = function(m) {+      return d3_scale_linearTicks(scale.domain(), m);+    };+    scale.tickFormat = function(m) {+      return d3_scale_linearTickFormat(scale.domain(), m);+    };+    scale.nice = function() {+      return scale.domain(d3_scale_nice(scale.domain(), d3_scale_linearNice));+    };+    scale.exponent = function(x) {+      if (!arguments.length) return exponent;+      var domain = scale.domain();+      powp = d3_scale_powPow(exponent = x);+      powb = d3_scale_powPow(1 / exponent);+      return scale.domain(domain);+    };+    scale.copy = function() {+      return d3_scale_pow(linear.copy(), exponent);+    };+    return d3_scale_linearRebind(scale, linear);+  }+  function d3_scale_powPow(e) {+    return function(x) {+      return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);+    };+  }+  function d3_scale_ordinal(domain, ranger) {+    function scale(x) {+      return range[((index.get(x) || index.set(x, domain.push(x))) - 1) % range.length];+    }+    function steps(start, step) {+      return d3.range(domain.length).map(function(i) {+        return start + step * i;+      });+    }+    var index, range, rangeBand;+    scale.domain = function(x) {+      if (!arguments.length) return domain;+      domain = [];+      index = new d3_Map;+      var i = -1, n = x.length, xi;+      while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi));+      return scale[ranger.t].apply(scale, ranger.a);+    };+    scale.range = function(x) {+      if (!arguments.length) return range;+      range = x;+      rangeBand = 0;+      ranger = {+        t: "range",+        a: arguments+      };+      return scale;+    };+    scale.rangePoints = function(x, padding) {+      if (arguments.length < 2) padding = 0;+      var start = x[0], stop = x[1], step = (stop - start) / (Math.max(1, domain.length - 1) + padding);+      range = steps(domain.length < 2 ? (start + stop) / 2 : start + step * padding / 2, step);+      rangeBand = 0;+      ranger = {+        t: "rangePoints",+        a: arguments+      };+      return scale;+    };+    scale.rangeBands = function(x, padding, outerPadding) {+      if (arguments.length < 2) padding = 0;+      if (arguments.length < 3) outerPadding = padding;+      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = (stop - start) / (domain.length - padding + 2 * outerPadding);+      range = steps(start + step * outerPadding, step);+      if (reverse) range.reverse();+      rangeBand = step * (1 - padding);+      ranger = {+        t: "rangeBands",+        a: arguments+      };+      return scale;+    };+    scale.rangeRoundBands = function(x, padding, outerPadding) {+      if (arguments.length < 2) padding = 0;+      if (arguments.length < 3) outerPadding = padding;+      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = Math.floor((stop - start) / (domain.length - padding + 2 * outerPadding)), error = stop - start - (domain.length - padding) * step;+      range = steps(start + Math.round(error / 2), step);+      if (reverse) range.reverse();+      rangeBand = Math.round(step * (1 - padding));+      ranger = {+        t: "rangeRoundBands",+        a: arguments+      };+      return scale;+    };+    scale.rangeBand = function() {+      return rangeBand;+    };+    scale.rangeExtent = function() {+      return d3_scaleExtent(ranger.a[0]);+    };+    scale.copy = function() {+      return d3_scale_ordinal(domain, ranger);+    };+    return scale.domain(domain);+  }+  function d3_scale_quantile(domain, range) {+    function rescale() {+      var k = 0, n = domain.length, q = range.length;+      thresholds = [];+      while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);+      return scale;+    }+    function scale(x) {+      if (isNaN(x = +x)) return NaN;+      return range[d3.bisect(thresholds, x)];+    }+    var thresholds;+    scale.domain = function(x) {+      if (!arguments.length) return domain;+      domain = x.filter(function(d) {+        return !isNaN(d);+      }).sort(d3.ascending);+      return rescale();+    };+    scale.range = function(x) {+      if (!arguments.length) return range;+      range = x;+      return rescale();+    };+    scale.quantiles = function() {+      return thresholds;+    };+    scale.copy = function() {+      return d3_scale_quantile(domain, range);+    };+    return rescale();+  }+  function d3_scale_quantize(x0, x1, range) {+    function scale(x) {+      return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];+    }+    function rescale() {+      kx = range.length / (x1 - x0);+      i = range.length - 1;+      return scale;+    }+    var kx, i;+    scale.domain = function(x) {+      if (!arguments.length) return [ x0, x1 ];+      x0 = +x[0];+      x1 = +x[x.length - 1];+      return rescale();+    };+    scale.range = function(x) {+      if (!arguments.length) return range;+      range = x;+      return rescale();+    };+    scale.copy = function() {+      return d3_scale_quantize(x0, x1, range);+    };+    return rescale();+  }+  function d3_scale_threshold(domain, range) {+    function scale(x) {+      return range[d3.bisect(domain, x)];+    }+    scale.domain = function(_) {+      if (!arguments.length) return domain;+      domain = _;+      return scale;+    };+    scale.range = function(_) {+      if (!arguments.length) return range;+      range = _;+      return scale;+    };+    scale.copy = function() {+      return d3_scale_threshold(domain, range);+    };+    return scale;+  }+  function d3_scale_identity(domain) {+    function identity(x) {+      return +x;+    }+    identity.invert = identity;+    identity.domain = identity.range = function(x) {+      if (!arguments.length) return domain;+      domain = x.map(identity);+      return identity;+    };+    identity.ticks = function(m) {+      return d3_scale_linearTicks(domain, m);+    };+    identity.tickFormat = function(m) {+      return d3_scale_linearTickFormat(domain, m);+    };+    identity.copy = function() {+      return d3_scale_identity(domain);+    };+    return identity;+  }+  function d3_svg_arcInnerRadius(d) {+    return d.innerRadius;+  }+  function d3_svg_arcOuterRadius(d) {+    return d.outerRadius;+  }+  function d3_svg_arcStartAngle(d) {+    return d.startAngle;+  }+  function d3_svg_arcEndAngle(d) {+    return d.endAngle;+  }+  function d3_svg_line(projection) {+    function line(data) {+      function segment() {+        segments.push("M", interpolate(projection(points), tension));+      }+      var segments = [], points = [], i = -1, n = data.length, d, fx = d3_functor(x), fy = d3_functor(y);+      while (++i < n) {+        if (defined.call(this, d = data[i], i)) {+          points.push([ +fx.call(this, d, i), +fy.call(this, d, i) ]);+        } else if (points.length) {+          segment();+          points = [];+        }+      }+      if (points.length) segment();+      return segments.length ? segments.join("") : null;+    }+    var x = d3_svg_lineX, y = d3_svg_lineY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, tension = .7;+    line.x = function(_) {+      if (!arguments.length) return x;+      x = _;+      return line;+    };+    line.y = function(_) {+      if (!arguments.length) return y;+      y = _;+      return line;+    };+    line.defined = function(_) {+      if (!arguments.length) return defined;+      defined = _;+      return line;+    };+    line.interpolate = function(_) {+      if (!arguments.length) return interpolateKey;+      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;+      return line;+    };+    line.tension = function(_) {+      if (!arguments.length) return tension;+      tension = _;+      return line;+    };+    return line;+  }+  function d3_svg_lineX(d) {+    return d[0];+  }+  function d3_svg_lineY(d) {+    return d[1];+  }+  function d3_svg_lineLinear(points) {+    return points.join("L");+  }+  function d3_svg_lineLinearClosed(points) {+    return d3_svg_lineLinear(points) + "Z";+  }+  function d3_svg_lineStepBefore(points) {+    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];+    while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]);+    return path.join("");+  }+  function d3_svg_lineStepAfter(points) {+    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];+    while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);+    return path.join("");+  }+  function d3_svg_lineCardinalOpen(points, tension) {+    return points.length < 4 ? d3_svg_lineLinear(points) : points[1] + d3_svg_lineHermite(points.slice(1, points.length - 1), d3_svg_lineCardinalTangents(points, tension));+  }+  function d3_svg_lineCardinalClosed(points, tension) {+    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite((points.push(points[0]), points), d3_svg_lineCardinalTangents([ points[points.length - 2] ].concat(points, [ points[1] ]), tension));+  }+  function d3_svg_lineCardinal(points, tension, closed) {+    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineCardinalTangents(points, tension));+  }+  function d3_svg_lineHermite(points, tangents) {+    if (tangents.length < 1 || points.length != tangents.length && points.length != tangents.length + 2) {+      return d3_svg_lineLinear(points);+    }+    var quad = points.length != tangents.length, path = "", p0 = points[0], p = points[1], t0 = tangents[0], t = t0, pi = 1;+    if (quad) {+      path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3) + "," + p[0] + "," + p[1];+      p0 = points[1];+      pi = 2;+    }+    if (tangents.length > 1) {+      t = tangents[1];+      p = points[pi];+      pi++;+      path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1]) + "," + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];+      for (var i = 2; i < tangents.length; i++, pi++) {+        p = points[pi];+        t = tangents[i];+        path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];+      }+    }+    if (quad) {+      var lp = points[pi];+      path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3) + "," + lp[0] + "," + lp[1];+    }+    return path;+  }+  function d3_svg_lineCardinalTangents(points, tension) {+    var tangents = [], a = (1 - tension) / 2, p0, p1 = points[0], p2 = points[1], i = 1, n = points.length;+    while (++i < n) {+      p0 = p1;+      p1 = p2;+      p2 = points[i];+      tangents.push([ a * (p2[0] - p0[0]), a * (p2[1] - p0[1]) ]);+    }+    return tangents;+  }+  function d3_svg_lineBasis(points) {+    if (points.length < 3) return d3_svg_lineLinear(points);+    var i = 1, n = points.length, pi = points[0], x0 = pi[0], y0 = pi[1], px = [ x0, x0, x0, (pi = points[1])[0] ], py = [ y0, y0, y0, pi[1] ], path = [ x0, ",", y0 ];+    d3_svg_lineBasisBezier(path, px, py);+    while (++i < n) {+      pi = points[i];+      px.shift();+      px.push(pi[0]);+      py.shift();+      py.push(pi[1]);+      d3_svg_lineBasisBezier(path, px, py);+    }+    i = -1;+    while (++i < 2) {+      px.shift();+      px.push(pi[0]);+      py.shift();+      py.push(pi[1]);+      d3_svg_lineBasisBezier(path, px, py);+    }+    return path.join("");+  }+  function d3_svg_lineBasisOpen(points) {+    if (points.length < 4) return d3_svg_lineLinear(points);+    var path = [], i = -1, n = points.length, pi, px = [ 0 ], py = [ 0 ];+    while (++i < 3) {+      pi = points[i];+      px.push(pi[0]);+      py.push(pi[1]);+    }+    path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px) + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py));+    --i;+    while (++i < n) {+      pi = points[i];+      px.shift();+      px.push(pi[0]);+      py.shift();+      py.push(pi[1]);+      d3_svg_lineBasisBezier(path, px, py);+    }+    return path.join("");+  }+  function d3_svg_lineBasisClosed(points) {+    var path, i = -1, n = points.length, m = n + 4, pi, px = [], py = [];+    while (++i < 4) {+      pi = points[i % n];+      px.push(pi[0]);+      py.push(pi[1]);+    }+    path = [ d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];+    --i;+    while (++i < m) {+      pi = points[i % n];+      px.shift();+      px.push(pi[0]);+      py.shift();+      py.push(pi[1]);+      d3_svg_lineBasisBezier(path, px, py);+    }+    return path.join("");+  }+  function d3_svg_lineBundle(points, tension) {+    var n = points.length - 1;+    if (n) {+      var x0 = points[0][0], y0 = points[0][1], dx = points[n][0] - x0, dy = points[n][1] - y0, i = -1, p, t;+      while (++i <= n) {+        p = points[i];+        t = i / n;+        p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx);+        p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy);+      }+    }+    return d3_svg_lineBasis(points);+  }+  function d3_svg_lineDot4(a, b) {+    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];+  }+  function d3_svg_lineBasisBezier(path, x, y) {+    path.push("C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y));+  }+  function d3_svg_lineSlope(p0, p1) {+    return (p1[1] - p0[1]) / (p1[0] - p0[0]);+  }+  function d3_svg_lineFiniteDifferences(points) {+    var i = 0, j = points.length - 1, m = [], p0 = points[0], p1 = points[1], d = m[0] = d3_svg_lineSlope(p0, p1);+    while (++i < j) {+      m[i] = (d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]))) / 2;+    }+    m[i] = d;+    return m;+  }+  function d3_svg_lineMonotoneTangents(points) {+    var tangents = [], d, a, b, s, m = d3_svg_lineFiniteDifferences(points), i = -1, j = points.length - 1;+    while (++i < j) {+      d = d3_svg_lineSlope(points[i], points[i + 1]);+      if (Math.abs(d) < 1e-6) {+        m[i] = m[i + 1] = 0;+      } else {+        a = m[i] / d;+        b = m[i + 1] / d;+        s = a * a + b * b;+        if (s > 9) {+          s = d * 3 / Math.sqrt(s);+          m[i] = s * a;+          m[i + 1] = s * b;+        }+      }+    }+    i = -1;+    while (++i <= j) {+      s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0]) / (6 * (1 + m[i] * m[i]));+      tangents.push([ s || 0, m[i] * s || 0 ]);+    }+    return tangents;+  }+  function d3_svg_lineMonotone(points) {+    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points));+  }+  function d3_svg_lineRadial(points) {+    var point, i = -1, n = points.length, r, a;+    while (++i < n) {+      point = points[i];+      r = point[0];+      a = point[1] + d3_svg_arcOffset;+      point[0] = r * Math.cos(a);+      point[1] = r * Math.sin(a);+    }+    return points;+  }+  function d3_svg_area(projection) {+    function area(data) {+      function segment() {+        segments.push("M", interpolate(projection(points1), tension), L, interpolateReverse(projection(points0.reverse()), tension), "Z");+      }+      var segments = [], points0 = [], points1 = [], i = -1, n = data.length, d, fx0 = d3_functor(x0), fy0 = d3_functor(y0), fx1 = x0 === x1 ? function() {+        return x;+      } : d3_functor(x1), fy1 = y0 === y1 ? function() {+        return y;+      } : d3_functor(y1), x, y;+      while (++i < n) {+        if (defined.call(this, d = data[i], i)) {+          points0.push([ x = +fx0.call(this, d, i), y = +fy0.call(this, d, i) ]);+          points1.push([ +fx1.call(this, d, i), +fy1.call(this, d, i) ]);+        } else if (points0.length) {+          segment();+          points0 = [];+          points1 = [];+        }+      }+      if (points0.length) segment();+      return segments.length ? segments.join("") : null;+    }+    var x0 = d3_svg_lineX, x1 = d3_svg_lineX, y0 = 0, y1 = d3_svg_lineY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, interpolateReverse = interpolate, L = "L", tension = .7;+    area.x = function(_) {+      if (!arguments.length) return x1;+      x0 = x1 = _;+      return area;+    };+    area.x0 = function(_) {+      if (!arguments.length) return x0;+      x0 = _;+      return area;+    };+    area.x1 = function(_) {+      if (!arguments.length) return x1;+      x1 = _;+      return area;+    };+    area.y = function(_) {+      if (!arguments.length) return y1;+      y0 = y1 = _;+      return area;+    };+    area.y0 = function(_) {+      if (!arguments.length) return y0;+      y0 = _;+      return area;+    };+    area.y1 = function(_) {+      if (!arguments.length) return y1;+      y1 = _;+      return area;+    };+    area.defined = function(_) {+      if (!arguments.length) return defined;+      defined = _;+      return area;+    };+    area.interpolate = function(_) {+      if (!arguments.length) return interpolateKey;+      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;+      interpolateReverse = interpolate.reverse || interpolate;+      L = interpolate.closed ? "M" : "L";+      return area;+    };+    area.tension = function(_) {+      if (!arguments.length) return tension;+      tension = _;+      return area;+    };+    return area;+  }+  function d3_svg_chordSource(d) {+    return d.source;+  }+  function d3_svg_chordTarget(d) {+    return d.target;+  }+  function d3_svg_chordRadius(d) {+    return d.radius;+  }+  function d3_svg_chordStartAngle(d) {+    return d.startAngle;+  }+  function d3_svg_chordEndAngle(d) {+    return d.endAngle;+  }+  function d3_svg_diagonalProjection(d) {+    return [ d.x, d.y ];+  }+  function d3_svg_diagonalRadialProjection(projection) {+    return function() {+      var d = projection.apply(this, arguments), r = d[0], a = d[1] + d3_svg_arcOffset;+      return [ r * Math.cos(a), r * Math.sin(a) ];+    };+  }+  function d3_svg_symbolSize() {+    return 64;+  }+  function d3_svg_symbolType() {+    return "circle";+  }+  function d3_svg_symbolCircle(size) {+    var r = Math.sqrt(size / Math.PI);+    return "M0," + r + "A" + r + "," + r + " 0 1,1 0," + -r + "A" + r + "," + r + " 0 1,1 0," + r + "Z";+  }+  function d3_svg_axisX(selection, x) {+    selection.attr("transform", function(d) {+      return "translate(" + x(d) + ",0)";+    });+  }+  function d3_svg_axisY(selection, y) {+    selection.attr("transform", function(d) {+      return "translate(0," + y(d) + ")";+    });+  }+  function d3_svg_axisSubdivide(scale, ticks, m) {+    subticks = [];+    if (m && ticks.length > 1) {+      var extent = d3_scaleExtent(scale.domain()), subticks, i = -1, n = ticks.length, d = (ticks[1] - ticks[0]) / ++m, j, v;+      while (++i < n) {+        for (j = m; --j > 0; ) {+          if ((v = +ticks[i] - j * d) >= extent[0]) {+            subticks.push(v);+          }+        }+      }+      for (--i, j = 0; ++j < m && (v = +ticks[i] + j * d) < extent[1]; ) {+        subticks.push(v);+      }+    }+    return subticks;+  }+  function d3_behavior_zoomDelta() {+    if (!d3_behavior_zoomDiv) {+      d3_behavior_zoomDiv = d3.select("body").append("div").style("visibility", "hidden").style("top", 0).style("height", 0).style("width", 0).style("overflow-y", "scroll").append("div").style("height", "2000px").node().parentNode;+    }+    var e = d3.event, delta;+    try {+      d3_behavior_zoomDiv.scrollTop = 1e3;+      d3_behavior_zoomDiv.dispatchEvent(e);+      delta = 1e3 - d3_behavior_zoomDiv.scrollTop;+    } catch (error) {+      delta = e.wheelDelta || -e.detail * 5;+    }+    return delta;+  }+  function d3_layout_bundlePath(link) {+    var start = link.source, end = link.target, lca = d3_layout_bundleLeastCommonAncestor(start, end), points = [ start ];+    while (start !== lca) {+      start = start.parent;+      points.push(start);+    }+    var k = points.length;+    while (end !== lca) {+      points.splice(k, 0, end);+      end = end.parent;+    }+    return points;+  }+  function d3_layout_bundleAncestors(node) {+    var ancestors = [], parent = node.parent;+    while (parent != null) {+      ancestors.push(node);+      node = parent;+      parent = parent.parent;+    }+    ancestors.push(node);+    return ancestors;+  }+  function d3_layout_bundleLeastCommonAncestor(a, b) {+    if (a === b) return a;+    var aNodes = d3_layout_bundleAncestors(a), bNodes = d3_layout_bundleAncestors(b), aNode = aNodes.pop(), bNode = bNodes.pop(), sharedNode = null;+    while (aNode === bNode) {+      sharedNode = aNode;+      aNode = aNodes.pop();+      bNode = bNodes.pop();+    }+    return sharedNode;+  }+  function d3_layout_forceDragstart(d) {+    d.fixed |= 2;+  }+  function d3_layout_forceDragend(d) {+    d.fixed &= 1;+  }+  function d3_layout_forceMouseover(d) {+    d.fixed |= 4;+  }+  function d3_layout_forceMouseout(d) {+    d.fixed &= 3;+  }+  function d3_layout_forceAccumulate(quad, alpha, charges) {+    var cx = 0, cy = 0;+    quad.charge = 0;+    if (!quad.leaf) {+      var nodes = quad.nodes, n = nodes.length, i = -1, c;+      while (++i < n) {+        c = nodes[i];+        if (c == null) continue;+        d3_layout_forceAccumulate(c, alpha, charges);+        quad.charge += c.charge;+        cx += c.charge * c.cx;+        cy += c.charge * c.cy;+      }+    }+    if (quad.point) {+      if (!quad.leaf) {+        quad.point.x += Math.random() - .5;+        quad.point.y += Math.random() - .5;+      }+      var k = alpha * charges[quad.point.index];+      quad.charge += quad.pointCharge = k;+      cx += k * quad.point.x;+      cy += k * quad.point.y;+    }+    quad.cx = cx / quad.charge;+    quad.cy = cy / quad.charge;+  }+  function d3_layout_forceLinkDistance(link) {+    return 20;+  }+  function d3_layout_forceLinkStrength(link) {+    return 1;+  }+  function d3_layout_stackX(d) {+    return d.x;+  }+  function d3_layout_stackY(d) {+    return d.y;+  }+  function d3_layout_stackOut(d, y0, y) {+    d.y0 = y0;+    d.y = y;+  }+  function d3_layout_stackOrderDefault(data) {+    return d3.range(data.length);+  }+  function d3_layout_stackOffsetZero(data) {+    var j = -1, m = data[0].length, y0 = [];+    while (++j < m) y0[j] = 0;+    return y0;+  }+  function d3_layout_stackMaxIndex(array) {+    var i = 1, j = 0, v = array[0][1], k, n = array.length;+    for (; i < n; ++i) {+      if ((k = array[i][1]) > v) {+        j = i;+        v = k;+      }+    }+    return j;+  }+  function d3_layout_stackReduceSum(d) {+    return d.reduce(d3_layout_stackSum, 0);+  }+  function d3_layout_stackSum(p, d) {+    return p + d[1];+  }+  function d3_layout_histogramBinSturges(range, values) {+    return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1));+  }+  function d3_layout_histogramBinFixed(range, n) {+    var x = -1, b = +range[0], m = (range[1] - b) / n, f = [];+    while (++x <= n) f[x] = m * x + b;+    return f;+  }+  function d3_layout_histogramRange(values) {+    return [ d3.min(values), d3.max(values) ];+  }+  function d3_layout_hierarchyRebind(object, hierarchy) {+    d3.rebind(object, hierarchy, "sort", "children", "value");+    object.links = d3_layout_hierarchyLinks;+    object.nodes = function(d) {+      d3_layout_hierarchyInline = true;+      return (object.nodes = object)(d);+    };+    return object;+  }+  function d3_layout_hierarchyChildren(d) {+    return d.children;+  }+  function d3_layout_hierarchyValue(d) {+    return d.value;+  }+  function d3_layout_hierarchySort(a, b) {+    return b.value - a.value;+  }+  function d3_layout_hierarchyLinks(nodes) {+    return d3.merge(nodes.map(function(parent) {+      return (parent.children || []).map(function(child) {+        return {+          source: parent,+          target: child+        };+      });+    }));+  }+  function d3_layout_packSort(a, b) {+    return a.value - b.value;+  }+  function d3_layout_packInsert(a, b) {+    var c = a._pack_next;+    a._pack_next = b;+    b._pack_prev = a;+    b._pack_next = c;+    c._pack_prev = b;+  }+  function d3_layout_packSplice(a, b) {+    a._pack_next = b;+    b._pack_prev = a;+  }+  function d3_layout_packIntersects(a, b) {+    var dx = b.x - a.x, dy = b.y - a.y, dr = a.r + b.r;+    return dr * dr - dx * dx - dy * dy > .001;+  }+  function d3_layout_packSiblings(node) {+    function bound(node) {+      xMin = Math.min(node.x - node.r, xMin);+      xMax = Math.max(node.x + node.r, xMax);+      yMin = Math.min(node.y - node.r, yMin);+      yMax = Math.max(node.y + node.r, yMax);+    }+    if (!(nodes = node.children) || !(n = nodes.length)) return;+    var nodes, xMin = Infinity, xMax = -Infinity, yMin = Infinity, yMax = -Infinity, a, b, c, i, j, k, n;+    nodes.forEach(d3_layout_packLink);+    a = nodes[0];+    a.x = -a.r;+    a.y = 0;+    bound(a);+    if (n > 1) {+      b = nodes[1];+      b.x = b.r;+      b.y = 0;+      bound(b);+      if (n > 2) {+        c = nodes[2];+        d3_layout_packPlace(a, b, c);+        bound(c);+        d3_layout_packInsert(a, c);+        a._pack_prev = c;+        d3_layout_packInsert(c, b);+        b = a._pack_next;+        for (i = 3; i < n; i++) {+          d3_layout_packPlace(a, b, c = nodes[i]);+          var isect = 0, s1 = 1, s2 = 1;+          for (j = b._pack_next; j !== b; j = j._pack_next, s1++) {+            if (d3_layout_packIntersects(j, c)) {+              isect = 1;+              break;+            }+          }+          if (isect == 1) {+            for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) {+              if (d3_layout_packIntersects(k, c)) {+                break;+              }+            }+          }+          if (isect) {+            if (s1 < s2 || s1 == s2 && b.r < a.r) d3_layout_packSplice(a, b = j); else d3_layout_packSplice(a = k, b);+            i--;+          } else {+            d3_layout_packInsert(a, c);+            b = c;+            bound(c);+          }+        }+      }+    }+    var cx = (xMin + xMax) / 2, cy = (yMin + yMax) / 2, cr = 0;+    for (i = 0; i < n; i++) {+      c = nodes[i];+      c.x -= cx;+      c.y -= cy;+      cr = Math.max(cr, c.r + Math.sqrt(c.x * c.x + c.y * c.y));+    }+    node.r = cr;+    nodes.forEach(d3_layout_packUnlink);+  }+  function d3_layout_packLink(node) {+    node._pack_next = node._pack_prev = node;+  }+  function d3_layout_packUnlink(node) {+    delete node._pack_next;+    delete node._pack_prev;+  }+  function d3_layout_packTransform(node, x, y, k) {+    var children = node.children;+    node.x = x += k * node.x;+    node.y = y += k * node.y;+    node.r *= k;+    if (children) {+      var i = -1, n = children.length;+      while (++i < n) d3_layout_packTransform(children[i], x, y, k);+    }+  }+  function d3_layout_packPlace(a, b, c) {+    var db = a.r + c.r, dx = b.x - a.x, dy = b.y - a.y;+    if (db && (dx || dy)) {+      var da = b.r + c.r, dc = dx * dx + dy * dy;+      da *= da;+      db *= db;+      var x = .5 + (db - da) / (2 * dc), y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc);+      c.x = a.x + x * dx + y * dy;+      c.y = a.y + x * dy - y * dx;+    } else {+      c.x = a.x + db;+      c.y = a.y;+    }+  }+  function d3_layout_clusterY(children) {+    return 1 + d3.max(children, function(child) {+      return child.y;+    });+  }+  function d3_layout_clusterX(children) {+    return children.reduce(function(x, child) {+      return x + child.x;+    }, 0) / children.length;+  }+  function d3_layout_clusterLeft(node) {+    var children = node.children;+    return children && children.length ? d3_layout_clusterLeft(children[0]) : node;+  }+  function d3_layout_clusterRight(node) {+    var children = node.children, n;+    return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node;+  }+  function d3_layout_treeSeparation(a, b) {+    return a.parent == b.parent ? 1 : 2;+  }+  function d3_layout_treeLeft(node) {+    var children = node.children;+    return children && children.length ? children[0] : node._tree.thread;+  }+  function d3_layout_treeRight(node) {+    var children = node.children, n;+    return children && (n = children.length) ? children[n - 1] : node._tree.thread;+  }+  function d3_layout_treeSearch(node, compare) {+    var children = node.children;+    if (children && (n = children.length)) {+      var child, n, i = -1;+      while (++i < n) {+        if (compare(child = d3_layout_treeSearch(children[i], compare), node) > 0) {+          node = child;+        }+      }+    }+    return node;+  }+  function d3_layout_treeRightmost(a, b) {+    return a.x - b.x;+  }+  function d3_layout_treeLeftmost(a, b) {+    return b.x - a.x;+  }+  function d3_layout_treeDeepest(a, b) {+    return a.depth - b.depth;+  }+  function d3_layout_treeVisitAfter(node, callback) {+    function visit(node, previousSibling) {+      var children = node.children;+      if (children && (n = children.length)) {+        var child, previousChild = null, i = -1, n;+        while (++i < n) {+          child = children[i];+          visit(child, previousChild);+          previousChild = child;+        }+      }+      callback(node, previousSibling);+    }+    visit(node, null);+  }+  function d3_layout_treeShift(node) {+    var shift = 0, change = 0, children = node.children, i = children.length, child;+    while (--i >= 0) {+      child = children[i]._tree;+      child.prelim += shift;+      child.mod += shift;+      shift += child.shift + (change += child.change);+    }+  }+  function d3_layout_treeMove(ancestor, node, shift) {+    ancestor = ancestor._tree;+    node = node._tree;+    var change = shift / (node.number - ancestor.number);+    ancestor.change += change;+    node.change -= change;+    node.shift += shift;+    node.prelim += shift;+    node.mod += shift;+  }+  function d3_layout_treeAncestor(vim, node, ancestor) {+    return vim._tree.ancestor.parent == node.parent ? vim._tree.ancestor : ancestor;+  }+  function d3_layout_treemapPadNull(node) {+    return {+      x: node.x,+      y: node.y,+      dx: node.dx,+      dy: node.dy+    };+  }+  function d3_layout_treemapPad(node, padding) {+    var x = node.x + padding[3], y = node.y + padding[0], dx = node.dx - padding[1] - padding[3], dy = node.dy - padding[0] - padding[2];+    if (dx < 0) {+      x += dx / 2;+      dx = 0;+    }+    if (dy < 0) {+      y += dy / 2;+      dy = 0;+    }+    return {+      x: x,+      y: y,+      dx: dx,+      dy: dy+    };+  }+  function d3_dsv(delimiter, mimeType) {+    function dsv(url, callback) {+      d3.text(url, mimeType, function(text) {+        callback(text && dsv.parse(text));+      });+    }+    function formatRow(row) {+      return row.map(formatValue).join(delimiter);+    }+    function formatValue(text) {+      return reFormat.test(text) ? '"' + text.replace(/\"/g, '""') + '"' : text;+    }+    var reParse = new RegExp("\r\n|[" + delimiter + "\r\n]", "g"), reFormat = new RegExp('["' + delimiter + "\n]"), delimiterCode = delimiter.charCodeAt(0);+    dsv.parse = function(text) {+      var header;+      return dsv.parseRows(text, function(row, i) {+        if (i) {+          var o = {}, j = -1, m = header.length;+          while (++j < m) o[header[j]] = row[j];+          return o;+        } else {+          header = row;+          return null;+        }+      });+    };+    dsv.parseRows = function(text, f) {+      function token() {+        if (reParse.lastIndex >= text.length) return EOF;+        if (eol) {+          eol = false;+          return EOL;+        }+        var j = reParse.lastIndex;+        if (text.charCodeAt(j) === 34) {+          var i = j;+          while (i++ < text.length) {+            if (text.charCodeAt(i) === 34) {+              if (text.charCodeAt(i + 1) !== 34) break;+              i++;+            }+          }+          reParse.lastIndex = i + 2;+          var c = text.charCodeAt(i + 1);+          if (c === 13) {+            eol = true;+            if (text.charCodeAt(i + 2) === 10) reParse.lastIndex++;+          } else if (c === 10) {+            eol = true;+          }+          return text.substring(j + 1, i).replace(/""/g, '"');+        }+        var m = reParse.exec(text);+        if (m) {+          eol = m[0].charCodeAt(0) !== delimiterCode;+          return text.substring(j, m.index);+        }+        reParse.lastIndex = text.length;+        return text.substring(j);+      }+      var EOL = {}, EOF = {}, rows = [], n = 0, t, eol;+      reParse.lastIndex = 0;+      while ((t = token()) !== EOF) {+        var a = [];+        while (t !== EOL && t !== EOF) {+          a.push(t);+          t = token();+        }+        if (f && !(a = f(a, n++))) continue;+        rows.push(a);+      }+      return rows;+    };+    dsv.format = function(rows) {+      return rows.map(formatRow).join("\n");+    };+    return dsv;+  }+  function d3_geo_type(types, defaultValue) {+    return function(object) {+      return object && types.hasOwnProperty(object.type) ? types[object.type](object) : defaultValue;+    };+  }+  function d3_path_circle(radius) {+    return "m0," + radius + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + "a" + radius + "," + radius + " 0 1,1 0," + +2 * radius + "z";+  }+  function d3_geo_bounds(o, f) {+    if (d3_geo_boundsTypes.hasOwnProperty(o.type)) d3_geo_boundsTypes[o.type](o, f);+  }+  function d3_geo_boundsFeature(o, f) {+    d3_geo_bounds(o.geometry, f);+  }+  function d3_geo_boundsFeatureCollection(o, f) {+    for (var a = o.features, i = 0, n = a.length; i < n; i++) {+      d3_geo_bounds(a[i].geometry, f);+    }+  }+  function d3_geo_boundsGeometryCollection(o, f) {+    for (var a = o.geometries, i = 0, n = a.length; i < n; i++) {+      d3_geo_bounds(a[i], f);+    }+  }+  function d3_geo_boundsLineString(o, f) {+    for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {+      f.apply(null, a[i]);+    }+  }+  function d3_geo_boundsMultiLineString(o, f) {+    for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {+      for (var b = a[i], j = 0, m = b.length; j < m; j++) {+        f.apply(null, b[j]);+      }+    }+  }+  function d3_geo_boundsMultiPolygon(o, f) {+    for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {+      for (var b = a[i][0], j = 0, m = b.length; j < m; j++) {+        f.apply(null, b[j]);+      }+    }+  }+  function d3_geo_boundsPoint(o, f) {+    f.apply(null, o.coordinates);+  }+  function d3_geo_boundsPolygon(o, f) {+    for (var a = o.coordinates[0], i = 0, n = a.length; i < n; i++) {+      f.apply(null, a[i]);+    }+  }+  function d3_geo_greatArcSource(d) {+    return d.source;+  }+  function d3_geo_greatArcTarget(d) {+    return d.target;+  }+  function d3_geo_greatArcInterpolator() {+    function interpolate(t) {+      var B = Math.sin(t *= d) * k, A = Math.sin(d - t) * k, x = A * kx0 + B * kx1, y = A * ky0 + B * ky1, z = A * sy0 + B * sy1;+      return [ Math.atan2(y, x) / d3_geo_radians, Math.atan2(z, Math.sqrt(x * x + y * y)) / d3_geo_radians ];+    }+    var x0, y0, cy0, sy0, kx0, ky0, x1, y1, cy1, sy1, kx1, ky1, d, k;+    interpolate.distance = function() {+      if (d == null) k = 1 / Math.sin(d = Math.acos(Math.max(-1, Math.min(1, sy0 * sy1 + cy0 * cy1 * Math.cos(x1 - x0)))));+      return d;+    };+    interpolate.source = function(_) {+      var cx0 = Math.cos(x0 = _[0] * d3_geo_radians), sx0 = Math.sin(x0);+      cy0 = Math.cos(y0 = _[1] * d3_geo_radians);+      sy0 = Math.sin(y0);+      kx0 = cy0 * cx0;+      ky0 = cy0 * sx0;+      d = null;+      return interpolate;+    };+    interpolate.target = function(_) {+      var cx1 = Math.cos(x1 = _[0] * d3_geo_radians), sx1 = Math.sin(x1);+      cy1 = Math.cos(y1 = _[1] * d3_geo_radians);+      sy1 = Math.sin(y1);+      kx1 = cy1 * cx1;+      ky1 = cy1 * sx1;+      d = null;+      return interpolate;+    };+    return interpolate;+  }+  function d3_geo_greatArcInterpolate(a, b) {+    var i = d3_geo_greatArcInterpolator().source(a).target(b);+    i.distance();+    return i;+  }+  function d3_geom_contourStart(grid) {+    var x = 0, y = 0;+    while (true) {+      if (grid(x, y)) {+        return [ x, y ];+      }+      if (x === 0) {+        x = y + 1;+        y = 0;+      } else {+        x = x - 1;+        y = y + 1;+      }+    }+  }+  function d3_geom_hullCCW(i1, i2, i3, v) {+    var t, a, b, c, d, e, f;+    t = v[i1];+    a = t[0];+    b = t[1];+    t = v[i2];+    c = t[0];+    d = t[1];+    t = v[i3];+    e = t[0];+    f = t[1];+    return (f - b) * (c - a) - (d - b) * (e - a) > 0;+  }+  function d3_geom_polygonInside(p, a, b) {+    return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]);+  }+  function d3_geom_polygonIntersect(c, d, a, b) {+    var x1 = c[0], x2 = d[0], x3 = a[0], x4 = b[0], y1 = c[1], y2 = d[1], y3 = a[1], y4 = b[1], x13 = x1 - x3, x21 = x2 - x1, x43 = x4 - x3, y13 = y1 - y3, y21 = y2 - y1, y43 = y4 - y3, ua = (x43 * y13 - y43 * x13) / (y43 * x21 - x43 * y21);+    return [ x1 + ua * x21, y1 + ua * y21 ];+  }+  function d3_voronoi_tessellate(vertices, callback) {+    var Sites = {+      list: vertices.map(function(v, i) {+        return {+          index: i,+          x: v[0],+          y: v[1]+        };+      }).sort(function(a, b) {+        return a.y < b.y ? -1 : a.y > b.y ? 1 : a.x < b.x ? -1 : a.x > b.x ? 1 : 0;+      }),+      bottomSite: null+    };+    var EdgeList = {+      list: [],+      leftEnd: null,+      rightEnd: null,+      init: function() {+        EdgeList.leftEnd = EdgeList.createHalfEdge(null, "l");+        EdgeList.rightEnd = EdgeList.createHalfEdge(null, "l");+        EdgeList.leftEnd.r = EdgeList.rightEnd;+        EdgeList.rightEnd.l = EdgeList.leftEnd;+        EdgeList.list.unshift(EdgeList.leftEnd, EdgeList.rightEnd);+      },+      createHalfEdge: function(edge, side) {+        return {+          edge: edge,+          side: side,+          vertex: null,+          l: null,+          r: null+        };+      },+      insert: function(lb, he) {+        he.l = lb;+        he.r = lb.r;+        lb.r.l = he;+        lb.r = he;+      },+      leftBound: function(p) {+        var he = EdgeList.leftEnd;+        do {+          he = he.r;+        } while (he != EdgeList.rightEnd && Geom.rightOf(he, p));+        he = he.l;+        return he;+      },+      del: function(he) {+        he.l.r = he.r;+        he.r.l = he.l;+        he.edge = null;+      },+      right: function(he) {+        return he.r;+      },+      left: function(he) {+        return he.l;+      },+      leftRegion: function(he) {+        return he.edge == null ? Sites.bottomSite : he.edge.region[he.side];+      },+      rightRegion: function(he) {+        return he.edge == null ? Sites.bottomSite : he.edge.region[d3_voronoi_opposite[he.side]];+      }+    };+    var Geom = {+      bisect: function(s1, s2) {+        var newEdge = {+          region: {+            l: s1,+            r: s2+          },+          ep: {+            l: null,+            r: null+          }+        };+        var dx = s2.x - s1.x, dy = s2.y - s1.y, adx = dx > 0 ? dx : -dx, ady = dy > 0 ? dy : -dy;+        newEdge.c = s1.x * dx + s1.y * dy + (dx * dx + dy * dy) * .5;+        if (adx > ady) {+          newEdge.a = 1;+          newEdge.b = dy / dx;+          newEdge.c /= dx;+        } else {+          newEdge.b = 1;+          newEdge.a = dx / dy;+          newEdge.c /= dy;+        }+        return newEdge;+      },+      intersect: function(el1, el2) {+        var e1 = el1.edge, e2 = el2.edge;+        if (!e1 || !e2 || e1.region.r == e2.region.r) {+          return null;+        }+        var d = e1.a * e2.b - e1.b * e2.a;+        if (Math.abs(d) < 1e-10) {+          return null;+        }+        var xint = (e1.c * e2.b - e2.c * e1.b) / d, yint = (e2.c * e1.a - e1.c * e2.a) / d, e1r = e1.region.r, e2r = e2.region.r, el, e;+        if (e1r.y < e2r.y || e1r.y == e2r.y && e1r.x < e2r.x) {+          el = el1;+          e = e1;+        } else {+          el = el2;+          e = e2;+        }+        var rightOfSite = xint >= e.region.r.x;+        if (rightOfSite && el.side === "l" || !rightOfSite && el.side === "r") {+          return null;+        }+        return {+          x: xint,+          y: yint+        };+      },+      rightOf: function(he, p) {+        var e = he.edge, topsite = e.region.r, rightOfSite = p.x > topsite.x;+        if (rightOfSite && he.side === "l") {+          return 1;+        }+        if (!rightOfSite && he.side === "r") {+          return 0;+        }+        if (e.a === 1) {+          var dyp = p.y - topsite.y, dxp = p.x - topsite.x, fast = 0, above = 0;+          if (!rightOfSite && e.b < 0 || rightOfSite && e.b >= 0) {+            above = fast = dyp >= e.b * dxp;+          } else {+            above = p.x + p.y * e.b > e.c;+            if (e.b < 0) {+              above = !above;+            }+            if (!above) {+              fast = 1;+            }+          }+          if (!fast) {+            var dxs = topsite.x - e.region.l.x;+            above = e.b * (dxp * dxp - dyp * dyp) < dxs * dyp * (1 + 2 * dxp / dxs + e.b * e.b);+            if (e.b < 0) {+              above = !above;+            }+          }+        } else {+          var yl = e.c - e.a * p.x, t1 = p.y - yl, t2 = p.x - topsite.x, t3 = yl - topsite.y;+          above = t1 * t1 > t2 * t2 + t3 * t3;+        }+        return he.side === "l" ? above : !above;+      },+      endPoint: function(edge, side, site) {+        edge.ep[side] = site;+        if (!edge.ep[d3_voronoi_opposite[side]]) return;+        callback(edge);+      },+      distance: function(s, t) {+        var dx = s.x - t.x, dy = s.y - t.y;+        return Math.sqrt(dx * dx + dy * dy);+      }+    };+    var EventQueue = {+      list: [],+      insert: function(he, site, offset) {+        he.vertex = site;+        he.ystar = site.y + offset;+        for (var i = 0, list = EventQueue.list, l = list.length; i < l; i++) {+          var next = list[i];+          if (he.ystar > next.ystar || he.ystar == next.ystar && site.x > next.vertex.x) {+            continue;+          } else {+            break;+          }+        }+        list.splice(i, 0, he);+      },+      del: function(he) {+        for (var i = 0, ls = EventQueue.list, l = ls.length; i < l && ls[i] != he; ++i) {}+        ls.splice(i, 1);+      },+      empty: function() {+        return EventQueue.list.length === 0;+      },+      nextEvent: function(he) {+        for (var i = 0, ls = EventQueue.list, l = ls.length; i < l; ++i) {+          if (ls[i] == he) return ls[i + 1];+        }+        return null;+      },+      min: function() {+        var elem = EventQueue.list[0];+        return {+          x: elem.vertex.x,+          y: elem.ystar+        };+      },+      extractMin: function() {+        return EventQueue.list.shift();+      }+    };+    EdgeList.init();+    Sites.bottomSite = Sites.list.shift();+    var newSite = Sites.list.shift(), newIntStar;+    var lbnd, rbnd, llbnd, rrbnd, bisector;+    var bot, top, temp, p, v;+    var e, pm;+    while (true) {+      if (!EventQueue.empty()) {+        newIntStar = EventQueue.min();+      }+      if (newSite && (EventQueue.empty() || newSite.y < newIntStar.y || newSite.y == newIntStar.y && newSite.x < newIntStar.x)) {+        lbnd = EdgeList.leftBound(newSite);+        rbnd = EdgeList.right(lbnd);+        bot = EdgeList.rightRegion(lbnd);+        e = Geom.bisect(bot, newSite);+        bisector = EdgeList.createHalfEdge(e, "l");+        EdgeList.insert(lbnd, bisector);+        p = Geom.intersect(lbnd, bisector);+        if (p) {+          EventQueue.del(lbnd);+          EventQueue.insert(lbnd, p, Geom.distance(p, newSite));+        }+        lbnd = bisector;+        bisector = EdgeList.createHalfEdge(e, "r");+        EdgeList.insert(lbnd, bisector);+        p = Geom.intersect(bisector, rbnd);+        if (p) {+          EventQueue.insert(bisector, p, Geom.distance(p, newSite));+        }+        newSite = Sites.list.shift();+      } else if (!EventQueue.empty()) {+        lbnd = EventQueue.extractMin();+        llbnd = EdgeList.left(lbnd);+        rbnd = EdgeList.right(lbnd);+        rrbnd = EdgeList.right(rbnd);+        bot = EdgeList.leftRegion(lbnd);+        top = EdgeList.rightRegion(rbnd);+        v = lbnd.vertex;+        Geom.endPoint(lbnd.edge, lbnd.side, v);+        Geom.endPoint(rbnd.edge, rbnd.side, v);+        EdgeList.del(lbnd);+        EventQueue.del(rbnd);+        EdgeList.del(rbnd);+        pm = "l";+        if (bot.y > top.y) {+          temp = bot;+          bot = top;+          top = temp;+          pm = "r";+        }+        e = Geom.bisect(bot, top);+        bisector = EdgeList.createHalfEdge(e, pm);+        EdgeList.insert(llbnd, bisector);+        Geom.endPoint(e, d3_voronoi_opposite[pm], v);+        p = Geom.intersect(llbnd, bisector);+        if (p) {+          EventQueue.del(llbnd);+          EventQueue.insert(llbnd, p, Geom.distance(p, bot));+        }+        p = Geom.intersect(bisector, rrbnd);+        if (p) {+          EventQueue.insert(bisector, p, Geom.distance(p, bot));+        }+      } else {+        break;+      }+    }+    for (lbnd = EdgeList.right(EdgeList.leftEnd); lbnd != EdgeList.rightEnd; lbnd = EdgeList.right(lbnd)) {+      callback(lbnd.edge);+    }+  }+  function d3_geom_quadtreeNode() {+    return {+      leaf: true,+      nodes: [],+      point: null+    };+  }+  function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) {+    if (!f(node, x1, y1, x2, y2)) {+      var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, children = node.nodes;+      if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy);+      if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy);+      if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2);+      if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2);+    }+  }+  function d3_geom_quadtreePoint(p) {+    return {+      x: p[0],+      y: p[1]+    };+  }+  function d3_time_utc() {+    this._ = new Date(arguments.length > 1 ? Date.UTC.apply(this, arguments) : arguments[0]);+  }+  function d3_time_formatAbbreviate(name) {+    return name.substring(0, 3);+  }+  function d3_time_parse(date, template, string, j) {+    var c, p, i = 0, n = template.length, m = string.length;+    while (i < n) {+      if (j >= m) return -1;+      c = template.charCodeAt(i++);+      if (c == 37) {+        p = d3_time_parsers[template.charAt(i++)];+        if (!p || (j = p(date, string, j)) < 0) return -1;+      } else if (c != string.charCodeAt(j++)) {+        return -1;+      }+    }+    return j;+  }+  function d3_time_formatRe(names) {+    return new RegExp("^(?:" + names.map(d3.requote).join("|") + ")", "i");+  }+  function d3_time_formatLookup(names) {+    var map = new d3_Map, i = -1, n = names.length;+    while (++i < n) map.set(names[i].toLowerCase(), i);+    return map;+  }+  function d3_time_parseWeekdayAbbrev(date, string, i) {+    d3_time_dayAbbrevRe.lastIndex = 0;+    var n = d3_time_dayAbbrevRe.exec(string.substring(i));+    return n ? i += n[0].length : -1;+  }+  function d3_time_parseWeekday(date, string, i) {+    d3_time_dayRe.lastIndex = 0;+    var n = d3_time_dayRe.exec(string.substring(i));+    return n ? i += n[0].length : -1;+  }+  function d3_time_parseMonthAbbrev(date, string, i) {+    d3_time_monthAbbrevRe.lastIndex = 0;+    var n = d3_time_monthAbbrevRe.exec(string.substring(i));+    return n ? (date.m = d3_time_monthAbbrevLookup.get(n[0].toLowerCase()), i += n[0].length) : -1;+  }+  function d3_time_parseMonth(date, string, i) {+    d3_time_monthRe.lastIndex = 0;+    var n = d3_time_monthRe.exec(string.substring(i));+    return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i += n[0].length) : -1;+  }+  function d3_time_parseLocaleFull(date, string, i) {+    return d3_time_parse(date, d3_time_formats.c.toString(), string, i);+  }+  function d3_time_parseLocaleDate(date, string, i) {+    return d3_time_parse(date, d3_time_formats.x.toString(), string, i);+  }+  function d3_time_parseLocaleTime(date, string, i) {+    return d3_time_parse(date, d3_time_formats.X.toString(), string, i);+  }+  function d3_time_parseFullYear(date, string, i) {+    d3_time_numberRe.lastIndex = 0;+    var n = d3_time_numberRe.exec(string.substring(i, i + 4));+    return n ? (date.y = +n[0], i += n[0].length) : -1;+  }+  function d3_time_parseYear(date, string, i) {+    d3_time_numberRe.lastIndex = 0;+    var n = d3_time_numberRe.exec(string.substring(i, i + 2));+    return n ? (date.y = d3_time_expandYear(+n[0]), i += n[0].length) : -1;+  }+  function d3_time_expandYear(d) {+    return d + (d > 68 ? 1900 : 2e3);+  }+  function d3_time_parseMonthNumber(date, string, i) {+    d3_time_numberRe.lastIndex = 0;+    var n = d3_time_numberRe.exec(string.substring(i, i + 2));+    return n ? (date.m = n[0] - 1, i += n[0].length) : -1;+  }+  function d3_time_parseDay(date, string, i) {+    d3_time_numberRe.lastIndex = 0;+    var n = d3_time_numberRe.exec(string.substring(i, i + 2));+    return n ? (date.d = +n[0], i += n[0].length) : -1;+  }+  function d3_time_parseHour24(date, string, i) {+    d3_time_numberRe.lastIndex = 0;+    var n = d3_time_numberRe.exec(string.substring(i, i + 2));+    return n ? (date.H = +n[0], i += n[0].length) : -1;+  }+  function d3_time_parseMinutes(date, string, i) {+    d3_time_numberRe.lastIndex = 0;+    var n = d3_time_numberRe.exec(string.substring(i, i + 2));+    return n ? (date.M = +n[0], i += n[0].length) : -1;+  }+  function d3_time_parseSeconds(date, string, i) {+    d3_time_numberRe.lastIndex = 0;+    var n = d3_time_numberRe.exec(string.substring(i, i + 2));+    return n ? (date.S = +n[0], i += n[0].length) : -1;+  }+  function d3_time_parseMilliseconds(date, string, i) {+    d3_time_numberRe.lastIndex = 0;+    var n = d3_time_numberRe.exec(string.substring(i, i + 3));+    return n ? (date.L = +n[0], i += n[0].length) : -1;+  }+  function d3_time_parseAmPm(date, string, i) {+    var n = d3_time_amPmLookup.get(string.substring(i, i += 2).toLowerCase());+    return n == null ? -1 : (date.p = n, i);+  }+  function d3_time_zone(d) {+    var z = d.getTimezoneOffset(), zs = z > 0 ? "-" : "+", zh = ~~(Math.abs(z) / 60), zm = Math.abs(z) % 60;+    return zs + d3_time_zfill2(zh) + d3_time_zfill2(zm);+  }+  function d3_time_formatIsoNative(date) {+    return date.toISOString();+  }+  function d3_time_interval(local, step, number) {+    function round(date) {+      var d0 = local(date), d1 = offset(d0, 1);+      return date - d0 < d1 - date ? d0 : d1;+    }+    function ceil(date) {+      step(date = local(new d3_time(date - 1)), 1);+      return date;+    }+    function offset(date, k) {+      step(date = new d3_time(+date), k);+      return date;+    }+    function range(t0, t1, dt) {+      var time = ceil(t0), times = [];+      if (dt > 1) {+        while (time < t1) {+          if (!(number(time) % dt)) times.push(new Date(+time));+          step(time, 1);+        }+      } else {+        while (time < t1) times.push(new Date(+time)), step(time, 1);+      }+      return times;+    }+    function range_utc(t0, t1, dt) {+      try {+        d3_time = d3_time_utc;+        var utc = new d3_time_utc;+        utc._ = t0;+        return range(utc, t1, dt);+      } finally {+        d3_time = Date;+      }+    }+    local.floor = local;+    local.round = round;+    local.ceil = ceil;+    local.offset = offset;+    local.range = range;+    var utc = local.utc = d3_time_interval_utc(local);+    utc.floor = utc;+    utc.round = d3_time_interval_utc(round);+    utc.ceil = d3_time_interval_utc(ceil);+    utc.offset = d3_time_interval_utc(offset);+    utc.range = range_utc;+    return local;+  }+  function d3_time_interval_utc(method) {+    return function(date, k) {+      try {+        d3_time = d3_time_utc;+        var utc = new d3_time_utc;+        utc._ = date;+        return method(utc, k)._;+      } finally {+        d3_time = Date;+      }+    };+  }+  function d3_time_scale(linear, methods, format) {+    function scale(x) {+      return linear(x);+    }+    scale.invert = function(x) {+      return d3_time_scaleDate(linear.invert(x));+    };+    scale.domain = function(x) {+      if (!arguments.length) return linear.domain().map(d3_time_scaleDate);+      linear.domain(x);+      return scale;+    };+    scale.nice = function(m) {+      return scale.domain(d3_scale_nice(scale.domain(), function() {+        return m;+      }));+    };+    scale.ticks = function(m, k) {+      var extent = d3_time_scaleExtent(scale.domain());+      if (typeof m !== "function") {+        var span = extent[1] - extent[0], target = span / m, i = d3.bisect(d3_time_scaleSteps, target);+        if (i == d3_time_scaleSteps.length) return methods.year(extent, m);+        if (!i) return linear.ticks(m).map(d3_time_scaleDate);+        if (Math.log(target / d3_time_scaleSteps[i - 1]) < Math.log(d3_time_scaleSteps[i] / target)) --i;+        m = methods[i];+        k = m[1];+        m = m[0].range;+      }+      return m(extent[0], new Date(+extent[1] + 1), k);+    };+    scale.tickFormat = function() {+      return format;+    };+    scale.copy = function() {+      return d3_time_scale(linear.copy(), methods, format);+    };+    return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");+  }+  function d3_time_scaleExtent(domain) {+    var start = domain[0], stop = domain[domain.length - 1];+    return start < stop ? [ start, stop ] : [ stop, start ];+  }+  function d3_time_scaleDate(t) {+    return new Date(t);+  }+  function d3_time_scaleFormat(formats) {+    return function(date) {+      var i = formats.length - 1, f = formats[i];+      while (!f[1](date)) f = formats[--i];+      return f[0](date);+    };+  }+  function d3_time_scaleSetYear(y) {+    var d = new Date(y, 0, 1);+    d.setFullYear(y);+    return d;+  }+  function d3_time_scaleGetYear(d) {+    var y = d.getFullYear(), d0 = d3_time_scaleSetYear(y), d1 = d3_time_scaleSetYear(y + 1);+    return y + (d - d0) / (d1 - d0);+  }+  function d3_time_scaleUTCSetYear(y) {+    var d = new Date(Date.UTC(y, 0, 1));+    d.setUTCFullYear(y);+    return d;+  }+  function d3_time_scaleUTCGetYear(d) {+    var y = d.getUTCFullYear(), d0 = d3_time_scaleUTCSetYear(y), d1 = d3_time_scaleUTCSetYear(y + 1);+    return y + (d - d0) / (d1 - d0);+  }+  if (!Date.now) Date.now = function() {+    return +(new Date);+  };+  try {+    document.createElement("div").style.setProperty("opacity", 0, "");+  } catch (error) {+    var d3_style_prototype = CSSStyleDeclaration.prototype, d3_style_setProperty = d3_style_prototype.setProperty;+    d3_style_prototype.setProperty = function(name, value, priority) {+      d3_style_setProperty.call(this, name, value + "", priority);+    };+  }+  d3 = {+    version: "2.10.3"+  };+  var d3_array = d3_arraySlice;+  try {+    d3_array(document.documentElement.childNodes)[0].nodeType;+  } catch (e) {+    d3_array = d3_arrayCopy;+  }+  var d3_arraySubclass = [].__proto__ ? function(array, prototype) {+    array.__proto__ = prototype;+  } : function(array, prototype) {+    for (var property in prototype) array[property] = prototype[property];+  };+  d3.map = function(object) {+    var map = new d3_Map;+    for (var key in object) map.set(key, object[key]);+    return map;+  };+  d3_class(d3_Map, {+    has: function(key) {+      return d3_map_prefix + key in this;+    },+    get: function(key) {+      return this[d3_map_prefix + key];+    },+    set: function(key, value) {+      return this[d3_map_prefix + key] = value;+    },+    remove: function(key) {+      key = d3_map_prefix + key;+      return key in this && delete this[key];+    },+    keys: function() {+      var keys = [];+      this.forEach(function(key) {+        keys.push(key);+      });+      return keys;+    },+    values: function() {+      var values = [];+      this.forEach(function(key, value) {+        values.push(value);+      });+      return values;+    },+    entries: function() {+      var entries = [];+      this.forEach(function(key, value) {+        entries.push({+          key: key,+          value: value+        });+      });+      return entries;+    },+    forEach: function(f) {+      for (var key in this) {+        if (key.charCodeAt(0) === d3_map_prefixCode) {+          f.call(this, key.substring(1), this[key]);+        }+      }+    }+  });+  var d3_map_prefix = "\0", d3_map_prefixCode = d3_map_prefix.charCodeAt(0);+  d3.functor = d3_functor;+  d3.rebind = function(target, source) {+    var i = 1, n = arguments.length, method;+    while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);+    return target;+  };+  d3.ascending = function(a, b) {+    return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;+  };+  d3.descending = function(a, b) {+    return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;+  };+  d3.mean = function(array, f) {+    var n = array.length, a, m = 0, i = -1, j = 0;+    if (arguments.length === 1) {+      while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j;+    } else {+      while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j;+    }+    return j ? m : undefined;+  };+  d3.median = function(array, f) {+    if (arguments.length > 1) array = array.map(f);+    array = array.filter(d3_number);+    return array.length ? d3.quantile(array.sort(d3.ascending), .5) : undefined;+  };+  d3.min = function(array, f) {+    var i = -1, n = array.length, a, b;+    if (arguments.length === 1) {+      while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;+      while (++i < n) if ((b = array[i]) != null && a > b) a = b;+    } else {+      while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;+    }+    return a;+  };+  d3.max = function(array, f) {+    var i = -1, n = array.length, a, b;+    if (arguments.length === 1) {+      while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;+      while (++i < n) if ((b = array[i]) != null && b > a) a = b;+    } else {+      while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;+      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;+    }+    return a;+  };+  d3.extent = function(array, f) {+    var i = -1, n = array.length, a, b, c;+    if (arguments.length === 1) {+      while (++i < n && ((a = c = array[i]) == null || a != a)) a = c = undefined;+      while (++i < n) if ((b = array[i]) != null) {+        if (a > b) a = b;+        if (c < b) c = b;+      }+    } else {+      while (++i < n && ((a = c = f.call(array, array[i], i)) == null || a != a)) a = undefined;+      while (++i < n) if ((b = f.call(array, array[i], i)) != null) {+        if (a > b) a = b;+        if (c < b) c = b;+      }+    }+    return [ a, c ];+  };+  d3.random = {+    normal: function(µ, σ) {+      var n = arguments.length;+      if (n < 2) σ = 1;+      if (n < 1) µ = 0;+      return function() {+        var x, y, r;+        do {+          x = Math.random() * 2 - 1;+          y = Math.random() * 2 - 1;+          r = x * x + y * y;+        } while (!r || r > 1);+        return µ + σ * x * Math.sqrt(-2 * Math.log(r) / r);+      };+    },+    logNormal: function(µ, σ) {+      var n = arguments.length;+      if (n < 2) σ = 1;+      if (n < 1) µ = 0;+      var random = d3.random.normal();+      return function() {+        return Math.exp(µ + σ * random());+      };+    },+    irwinHall: function(m) {+      return function() {+        for (var s = 0, j = 0; j < m; j++) s += Math.random();+        return s / m;+      };+    }+  };+  d3.sum = function(array, f) {+    var s = 0, n = array.length, a, i = -1;+    if (arguments.length === 1) {+      while (++i < n) if (!isNaN(a = +array[i])) s += a;+    } else {+      while (++i < n) if (!isNaN(a = +f.call(array, array[i], i))) s += a;+    }+    return s;+  };+  d3.quantile = function(values, p) {+    var H = (values.length - 1) * p + 1, h = Math.floor(H), v = values[h - 1], e = H - h;+    return e ? v + e * (values[h] - v) : v;+  };+  d3.transpose = function(matrix) {+    return d3.zip.apply(d3, matrix);+  };+  d3.zip = function() {+    if (!(n = arguments.length)) return [];+    for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m; ) {+      for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n; ) {+        zip[j] = arguments[j][i];+      }+    }+    return zips;+  };+  d3.bisector = function(f) {+    return {+      left: function(a, x, lo, hi) {+        if (arguments.length < 3) lo = 0;+        if (arguments.length < 4) hi = a.length;+        while (lo < hi) {+          var mid = lo + hi >>> 1;+          if (f.call(a, a[mid], mid) < x) lo = mid + 1; else hi = mid;+        }+        return lo;+      },+      right: function(a, x, lo, hi) {+        if (arguments.length < 3) lo = 0;+        if (arguments.length < 4) hi = a.length;+        while (lo < hi) {+          var mid = lo + hi >>> 1;+          if (x < f.call(a, a[mid], mid)) hi = mid; else lo = mid + 1;+        }+        return lo;+      }+    };+  };+  var d3_bisector = d3.bisector(function(d) {+    return d;+  });+  d3.bisectLeft = d3_bisector.left;+  d3.bisect = d3.bisectRight = d3_bisector.right;+  d3.first = function(array, f) {+    var i = 0, n = array.length, a = array[0], b;+    if (arguments.length === 1) f = d3.ascending;+    while (++i < n) {+      if (f.call(array, a, b = array[i]) > 0) {+        a = b;+      }+    }+    return a;+  };+  d3.last = function(array, f) {+    var i = 0, n = array.length, a = array[0], b;+    if (arguments.length === 1) f = d3.ascending;+    while (++i < n) {+      if (f.call(array, a, b = array[i]) <= 0) {+        a = b;+      }+    }+    return a;+  };+  d3.nest = function() {+    function map(array, depth) {+      if (depth >= keys.length) return rollup ? rollup.call(nest, array) : sortValues ? array.sort(sortValues) : array;+      var i = -1, n = array.length, key = keys[depth++], keyValue, object, valuesByKey = new d3_Map, values, o = {};+      while (++i < n) {+        if (values = valuesByKey.get(keyValue = key(object = array[i]))) {+          values.push(object);+        } else {+          valuesByKey.set(keyValue, [ object ]);+        }+      }+      valuesByKey.forEach(function(keyValue, values) {+        o[keyValue] = map(values, depth);+      });+      return o;+    }+    function entries(map, depth) {+      if (depth >= keys.length) return map;+      var a = [], sortKey = sortKeys[depth++], key;+      for (key in map) {+        a.push({+          key: key,+          values: entries(map[key], depth)+        });+      }+      if (sortKey) a.sort(function(a, b) {+        return sortKey(a.key, b.key);+      });+      return a;+    }+    var nest = {}, keys = [], sortKeys = [], sortValues, rollup;+    nest.map = function(array) {+      return map(array, 0);+    };+    nest.entries = function(array) {+      return entries(map(array, 0), 0);+    };+    nest.key = function(d) {+      keys.push(d);+      return nest;+    };+    nest.sortKeys = function(order) {+      sortKeys[keys.length - 1] = order;+      return nest;+    };+    nest.sortValues = function(order) {+      sortValues = order;+      return nest;+    };+    nest.rollup = function(f) {+      rollup = f;+      return nest;+    };+    return nest;+  };+  d3.keys = function(map) {+    var keys = [];+    for (var key in map) keys.push(key);+    return keys;+  };+  d3.values = function(map) {+    var values = [];+    for (var key in map) values.push(map[key]);+    return values;+  };+  d3.entries = function(map) {+    var entries = [];+    for (var key in map) entries.push({+      key: key,+      value: map[key]+    });+    return entries;+  };+  d3.permute = function(array, indexes) {+    var permutes = [], i = -1, n = indexes.length;+    while (++i < n) permutes[i] = array[indexes[i]];+    return permutes;+  };+  d3.merge = function(arrays) {+    return Array.prototype.concat.apply([], arrays);+  };+  d3.split = function(array, f) {+    var arrays = [], values = [], value, i = -1, n = array.length;+    if (arguments.length < 2) f = d3_splitter;+    while (++i < n) {+      if (f.call(values, value = array[i], i)) {+        values = [];+      } else {+        if (!values.length) arrays.push(values);+        values.push(value);+      }+    }+    return arrays;+  };+  d3.range = function(start, stop, step) {+    if (arguments.length < 3) {+      step = 1;+      if (arguments.length < 2) {+        stop = start;+        start = 0;+      }+    }+    if ((stop - start) / step === Infinity) throw new Error("infinite range");+    var range = [], k = d3_range_integerScale(Math.abs(step)), i = -1, j;+    start *= k, stop *= k, step *= k;+    if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k); else while ((j = start + step * ++i) < stop) range.push(j / k);+    return range;+  };+  d3.requote = function(s) {+    return s.replace(d3_requote_re, "\\$&");+  };+  var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;+  d3.round = function(x, n) {+    return n ? Math.round(x * (n = Math.pow(10, n))) / n : Math.round(x);+  };+  d3.xhr = function(url, mime, callback) {+    var req = new XMLHttpRequest;+    if (arguments.length < 3) callback = mime, mime = null; else if (mime && req.overrideMimeType) req.overrideMimeType(mime);+    req.open("GET", url, true);+    if (mime) req.setRequestHeader("Accept", mime);+    req.onreadystatechange = function() {+      if (req.readyState === 4) {+        var s = req.status;+        callback(!s && req.response || s >= 200 && s < 300 || s === 304 ? req : null);+      }+    };+    req.send(null);+  };+  d3.text = function(url, mime, callback) {+    function ready(req) {+      callback(req && req.responseText);+    }+    if (arguments.length < 3) {+      callback = mime;+      mime = null;+    }+    d3.xhr(url, mime, ready);+  };+  d3.json = function(url, callback) {+    d3.text(url, "application/json", function(text) {+      callback(text ? JSON.parse(text) : null);+    });+  };+  d3.html = function(url, callback) {+    d3.text(url, "text/html", function(text) {+      if (text != null) {+        var range = document.createRange();+        range.selectNode(document.body);+        text = range.createContextualFragment(text);+      }+      callback(text);+    });+  };+  d3.xml = function(url, mime, callback) {+    function ready(req) {+      callback(req && req.responseXML);+    }+    if (arguments.length < 3) {+      callback = mime;+      mime = null;+    }+    d3.xhr(url, mime, ready);+  };+  var d3_nsPrefix = {+    svg: "http://www.w3.org/2000/svg",+    xhtml: "http://www.w3.org/1999/xhtml",+    xlink: "http://www.w3.org/1999/xlink",+    xml: "http://www.w3.org/XML/1998/namespace",+    xmlns: "http://www.w3.org/2000/xmlns/"+  };+  d3.ns = {+    prefix: d3_nsPrefix,+    qualify: function(name) {+      var i = name.indexOf(":"), prefix = name;+      if (i >= 0) {+        prefix = name.substring(0, i);+        name = name.substring(i + 1);+      }+      return d3_nsPrefix.hasOwnProperty(prefix) ? {+        space: d3_nsPrefix[prefix],+        local: name+      } : name;+    }+  };+  d3.dispatch = function() {+    var dispatch = new d3_dispatch, i = -1, n = arguments.length;+    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);+    return dispatch;+  };+  d3_dispatch.prototype.on = function(type, listener) {+    var i = type.indexOf("."), name = "";+    if (i > 0) {+      name = type.substring(i + 1);+      type = type.substring(0, i);+    }+    return arguments.length < 2 ? this[type].on(name) : this[type].on(name, listener);+  };+  d3.format = function(specifier) {+    var match = d3_format_re.exec(specifier), fill = match[1] || " ", sign = match[3] || "", zfill = match[5], width = +match[6], comma = match[7], precision = match[8], type = match[9], scale = 1, suffix = "", integer = false;+    if (precision) precision = +precision.substring(1);+    if (zfill) {+      fill = "0";+      if (comma) width -= Math.floor((width - 1) / 4);+    }+    switch (type) {+     case "n":+      comma = true;+      type = "g";+      break;+     case "%":+      scale = 100;+      suffix = "%";+      type = "f";+      break;+     case "p":+      scale = 100;+      suffix = "%";+      type = "r";+      break;+     case "d":+      integer = true;+      precision = 0;+      break;+     case "s":+      scale = -1;+      type = "r";+      break;+    }+    if (type == "r" && !precision) type = "g";+    type = d3_format_types.get(type) || d3_format_typeDefault;+    return function(value) {+      if (integer && value % 1) return "";+      var negative = value < 0 && (value = -value) ? "-" : sign;+      if (scale < 0) {+        var prefix = d3.formatPrefix(value, precision);+        value = prefix.scale(value);+        suffix = prefix.symbol;+      } else {+        value *= scale;+      }+      value = type(value, precision);+      if (zfill) {+        var length = value.length + negative.length;+        if (length < width) value = (new Array(width - length + 1)).join(fill) + value;+        if (comma) value = d3_format_group(value);+        value = negative + value;+      } else {+        if (comma) value = d3_format_group(value);+        value = negative + value;+        var length = value.length;+        if (length < width) value = (new Array(width - length + 1)).join(fill) + value;+      }+      return value + suffix;+    };+  };+  var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/;+  var d3_format_types = d3.map({+    g: function(x, p) {+      return x.toPrecision(p);+    },+    e: function(x, p) {+      return x.toExponential(p);+    },+    f: function(x, p) {+      return x.toFixed(p);+    },+    r: function(x, p) {+      return d3.round(x, p = d3_format_precision(x, p)).toFixed(Math.max(0, Math.min(20, p)));+    }+  });+  var d3_formatPrefixes = [ "y", "z", "a", "f", "p", "n", "μ", "m", "", "k", "M", "G", "T", "P", "E", "Z", "Y" ].map(d3_formatPrefix);+  d3.formatPrefix = function(value, precision) {+    var i = 0;+    if (value) {+      if (value < 0) value *= -1;+      if (precision) value = d3.round(value, d3_format_precision(value, precision));+      i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10);+      i = Math.max(-24, Math.min(24, Math.floor((i <= 0 ? i + 1 : i - 1) / 3) * 3));+    }+    return d3_formatPrefixes[8 + i / 3];+  };+  var d3_ease_quad = d3_ease_poly(2), d3_ease_cubic = d3_ease_poly(3), d3_ease_default = function() {+    return d3_ease_identity;+  };+  var d3_ease = d3.map({+    linear: d3_ease_default,+    poly: d3_ease_poly,+    quad: function() {+      return d3_ease_quad;+    },+    cubic: function() {+      return d3_ease_cubic;+    },+    sin: function() {+      return d3_ease_sin;+    },+    exp: function() {+      return d3_ease_exp;+    },+    circle: function() {+      return d3_ease_circle;+    },+    elastic: d3_ease_elastic,+    back: d3_ease_back,+    bounce: function() {+      return d3_ease_bounce;+    }+  });+  var d3_ease_mode = d3.map({+    "in": d3_ease_identity,+    out: d3_ease_reverse,+    "in-out": d3_ease_reflect,+    "out-in": function(f) {+      return d3_ease_reflect(d3_ease_reverse(f));+    }+  });+  d3.ease = function(name) {+    var i = name.indexOf("-"), t = i >= 0 ? name.substring(0, i) : name, m = i >= 0 ? name.substring(i + 1) : "in";+    t = d3_ease.get(t) || d3_ease_default;+    m = d3_ease_mode.get(m) || d3_ease_identity;+    return d3_ease_clamp(m(t.apply(null, Array.prototype.slice.call(arguments, 1))));+  };+  d3.event = null;+  d3.transform = function(string) {+    var g = document.createElementNS(d3.ns.prefix.svg, "g");+    return (d3.transform = function(string) {+      g.setAttribute("transform", string);+      var t = g.transform.baseVal.consolidate();+      return new d3_transform(t ? t.matrix : d3_transformIdentity);+    })(string);+  };+  d3_transform.prototype.toString = function() {+    return "translate(" + this.translate + ")rotate(" + this.rotate + ")skewX(" + this.skew + ")scale(" + this.scale + ")";+  };+  var d3_transformDegrees = 180 / Math.PI, d3_transformIdentity = {+    a: 1,+    b: 0,+    c: 0,+    d: 1,+    e: 0,+    f: 0+  };+  d3.interpolate = function(a, b) {+    var i = d3.interpolators.length, f;+    while (--i >= 0 && !(f = d3.interpolators[i](a, b))) ;+    return f;+  };+  d3.interpolateNumber = function(a, b) {+    b -= a;+    return function(t) {+      return a + b * t;+    };+  };+  d3.interpolateRound = function(a, b) {+    b -= a;+    return function(t) {+      return Math.round(a + b * t);+    };+  };+  d3.interpolateString = function(a, b) {+    var m, i, j, s0 = 0, s1 = 0, s = [], q = [], n, o;+    d3_interpolate_number.lastIndex = 0;+    for (i = 0; m = d3_interpolate_number.exec(b); ++i) {+      if (m.index) s.push(b.substring(s0, s1 = m.index));+      q.push({+        i: s.length,+        x: m[0]+      });+      s.push(null);+      s0 = d3_interpolate_number.lastIndex;+    }+    if (s0 < b.length) s.push(b.substring(s0));+    for (i = 0, n = q.length; (m = d3_interpolate_number.exec(a)) && i < n; ++i) {+      o = q[i];+      if (o.x == m[0]) {+        if (o.i) {+          if (s[o.i + 1] == null) {+            s[o.i - 1] += o.x;+            s.splice(o.i, 1);+            for (j = i + 1; j < n; ++j) q[j].i--;+          } else {+            s[o.i - 1] += o.x + s[o.i + 1];+            s.splice(o.i, 2);+            for (j = i + 1; j < n; ++j) q[j].i -= 2;+          }+        } else {+          if (s[o.i + 1] == null) {+            s[o.i] = o.x;+          } else {+            s[o.i] = o.x + s[o.i + 1];+            s.splice(o.i + 1, 1);+            for (j = i + 1; j < n; ++j) q[j].i--;+          }+        }+        q.splice(i, 1);+        n--;+        i--;+      } else {+        o.x = d3.interpolateNumber(parseFloat(m[0]), parseFloat(o.x));+      }+    }+    while (i < n) {+      o = q.pop();+      if (s[o.i + 1] == null) {+        s[o.i] = o.x;+      } else {+        s[o.i] = o.x + s[o.i + 1];+        s.splice(o.i + 1, 1);+      }+      n--;+    }+    if (s.length === 1) {+      return s[0] == null ? q[0].x : function() {+        return b;+      };+    }+    return function(t) {+      for (i = 0; i < n; ++i) s[(o = q[i]).i] = o.x(t);+      return s.join("");+    };+  };+  d3.interpolateTransform = function(a, b) {+    var s = [], q = [], n, A = d3.transform(a), B = d3.transform(b), ta = A.translate, tb = B.translate, ra = A.rotate, rb = B.rotate, wa = A.skew, wb = B.skew, ka = A.scale, kb = B.scale;+    if (ta[0] != tb[0] || ta[1] != tb[1]) {+      s.push("translate(", null, ",", null, ")");+      q.push({+        i: 1,+        x: d3.interpolateNumber(ta[0], tb[0])+      }, {+        i: 3,+        x: d3.interpolateNumber(ta[1], tb[1])+      });+    } else if (tb[0] || tb[1]) {+      s.push("translate(" + tb + ")");+    } else {+      s.push("");+    }+    if (ra != rb) {+      if (ra - rb > 180) rb += 360; else if (rb - ra > 180) ra += 360;+      q.push({+        i: s.push(s.pop() + "rotate(", null, ")") - 2,+        x: d3.interpolateNumber(ra, rb)+      });+    } else if (rb) {+      s.push(s.pop() + "rotate(" + rb + ")");+    }+    if (wa != wb) {+      q.push({+        i: s.push(s.pop() + "skewX(", null, ")") - 2,+        x: d3.interpolateNumber(wa, wb)+      });+    } else if (wb) {+      s.push(s.pop() + "skewX(" + wb + ")");+    }+    if (ka[0] != kb[0] || ka[1] != kb[1]) {+      n = s.push(s.pop() + "scale(", null, ",", null, ")");+      q.push({+        i: n - 4,+        x: d3.interpolateNumber(ka[0], kb[0])+      }, {+        i: n - 2,+        x: d3.interpolateNumber(ka[1], kb[1])+      });+    } else if (kb[0] != 1 || kb[1] != 1) {+      s.push(s.pop() + "scale(" + kb + ")");+    }+    n = q.length;+    return function(t) {+      var i = -1, o;+      while (++i < n) s[(o = q[i]).i] = o.x(t);+      return s.join("");+    };+  };+  d3.interpolateRgb = function(a, b) {+    a = d3.rgb(a);+    b = d3.rgb(b);+    var ar = a.r, ag = a.g, ab = a.b, br = b.r - ar, bg = b.g - ag, bb = b.b - ab;+    return function(t) {+      return "#" + d3_rgb_hex(Math.round(ar + br * t)) + d3_rgb_hex(Math.round(ag + bg * t)) + d3_rgb_hex(Math.round(ab + bb * t));+    };+  };+  d3.interpolateHsl = function(a, b) {+    a = d3.hsl(a);+    b = d3.hsl(b);+    var h0 = a.h, s0 = a.s, l0 = a.l, h1 = b.h - h0, s1 = b.s - s0, l1 = b.l - l0;+    if (h1 > 180) h1 -= 360; else if (h1 < -180) h1 += 360;+    return function(t) {+      return d3_hsl_rgb(h0 + h1 * t, s0 + s1 * t, l0 + l1 * t) + "";+    };+  };+  d3.interpolateLab = function(a, b) {+    a = d3.lab(a);+    b = d3.lab(b);+    var al = a.l, aa = a.a, ab = a.b, bl = b.l - al, ba = b.a - aa, bb = b.b - ab;+    return function(t) {+      return d3_lab_rgb(al + bl * t, aa + ba * t, ab + bb * t) + "";+    };+  };+  d3.interpolateHcl = function(a, b) {+    a = d3.hcl(a);+    b = d3.hcl(b);+    var ah = a.h, ac = a.c, al = a.l, bh = b.h - ah, bc = b.c - ac, bl = b.l - al;+    if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;+    return function(t) {+      return d3_hcl_lab(ah + bh * t, ac + bc * t, al + bl * t) + "";+    };+  };+  d3.interpolateArray = function(a, b) {+    var x = [], c = [], na = a.length, nb = b.length, n0 = Math.min(a.length, b.length), i;+    for (i = 0; i < n0; ++i) x.push(d3.interpolate(a[i], b[i]));+    for (; i < na; ++i) c[i] = a[i];+    for (; i < nb; ++i) c[i] = b[i];+    return function(t) {+      for (i = 0; i < n0; ++i) c[i] = x[i](t);+      return c;+    };+  };+  d3.interpolateObject = function(a, b) {+    var i = {}, c = {}, k;+    for (k in a) {+      if (k in b) {+        i[k] = d3_interpolateByName(k)(a[k], b[k]);+      } else {+        c[k] = a[k];+      }+    }+    for (k in b) {+      if (!(k in a)) {+        c[k] = b[k];+      }+    }+    return function(t) {+      for (k in i) c[k] = i[k](t);+      return c;+    };+  };+  var d3_interpolate_number = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g;+  d3.interpolators = [ d3.interpolateObject, function(a, b) {+    return b instanceof Array && d3.interpolateArray(a, b);+  }, function(a, b) {+    return (typeof a === "string" || typeof b === "string") && d3.interpolateString(a + "", b + "");+  }, function(a, b) {+    return (typeof b === "string" ? d3_rgb_names.has(b) || /^(#|rgb\(|hsl\()/.test(b) : b instanceof d3_Color) && d3.interpolateRgb(a, b);+  }, function(a, b) {+    return !isNaN(a = +a) && !isNaN(b = +b) && d3.interpolateNumber(a, b);+  } ];+  d3_Color.prototype.toString = function() {+    return this.rgb() + "";+  };+  d3.rgb = function(r, g, b) {+    return arguments.length === 1 ? r instanceof d3_Rgb ? d3_rgb(r.r, r.g, r.b) : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb) : d3_rgb(~~r, ~~g, ~~b);+  };+  var d3_rgbPrototype = d3_Rgb.prototype = new d3_Color;+  d3_rgbPrototype.brighter = function(k) {+    k = Math.pow(.7, arguments.length ? k : 1);+    var r = this.r, g = this.g, b = this.b, i = 30;+    if (!r && !g && !b) return d3_rgb(i, i, i);+    if (r && r < i) r = i;+    if (g && g < i) g = i;+    if (b && b < i) b = i;+    return d3_rgb(Math.min(255, Math.floor(r / k)), Math.min(255, Math.floor(g / k)), Math.min(255, Math.floor(b / k)));+  };+  d3_rgbPrototype.darker = function(k) {+    k = Math.pow(.7, arguments.length ? k : 1);+    return d3_rgb(Math.floor(k * this.r), Math.floor(k * this.g), Math.floor(k * this.b));+  };+  d3_rgbPrototype.hsl = function() {+    return d3_rgb_hsl(this.r, this.g, this.b);+  };+  d3_rgbPrototype.toString = function() {+    return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);+  };+  var d3_rgb_names = d3.map({+    aliceblue: "#f0f8ff",+    antiquewhite: "#faebd7",+    aqua: "#00ffff",+    aquamarine: "#7fffd4",+    azure: "#f0ffff",+    beige: "#f5f5dc",+    bisque: "#ffe4c4",+    black: "#000000",+    blanchedalmond: "#ffebcd",+    blue: "#0000ff",+    blueviolet: "#8a2be2",+    brown: "#a52a2a",+    burlywood: "#deb887",+    cadetblue: "#5f9ea0",+    chartreuse: "#7fff00",+    chocolate: "#d2691e",+    coral: "#ff7f50",+    cornflowerblue: "#6495ed",+    cornsilk: "#fff8dc",+    crimson: "#dc143c",+    cyan: "#00ffff",+    darkblue: "#00008b",+    darkcyan: "#008b8b",+    darkgoldenrod: "#b8860b",+    darkgray: "#a9a9a9",+    darkgreen: "#006400",+    darkgrey: "#a9a9a9",+    darkkhaki: "#bdb76b",+    darkmagenta: "#8b008b",+    darkolivegreen: "#556b2f",+    darkorange: "#ff8c00",+    darkorchid: "#9932cc",+    darkred: "#8b0000",+    darksalmon: "#e9967a",+    darkseagreen: "#8fbc8f",+    darkslateblue: "#483d8b",+    darkslategray: "#2f4f4f",+    darkslategrey: "#2f4f4f",+    darkturquoise: "#00ced1",+    darkviolet: "#9400d3",+    deeppink: "#ff1493",+    deepskyblue: "#00bfff",+    dimgray: "#696969",+    dimgrey: "#696969",+    dodgerblue: "#1e90ff",+    firebrick: "#b22222",+    floralwhite: "#fffaf0",+    forestgreen: "#228b22",+    fuchsia: "#ff00ff",+    gainsboro: "#dcdcdc",+    ghostwhite: "#f8f8ff",+    gold: "#ffd700",+    goldenrod: "#daa520",+    gray: "#808080",+    green: "#008000",+    greenyellow: "#adff2f",+    grey: "#808080",+    honeydew: "#f0fff0",+    hotpink: "#ff69b4",+    indianred: "#cd5c5c",+    indigo: "#4b0082",+    ivory: "#fffff0",+    khaki: "#f0e68c",+    lavender: "#e6e6fa",+    lavenderblush: "#fff0f5",+    lawngreen: "#7cfc00",+    lemonchiffon: "#fffacd",+    lightblue: "#add8e6",+    lightcoral: "#f08080",+    lightcyan: "#e0ffff",+    lightgoldenrodyellow: "#fafad2",+    lightgray: "#d3d3d3",+    lightgreen: "#90ee90",+    lightgrey: "#d3d3d3",+    lightpink: "#ffb6c1",+    lightsalmon: "#ffa07a",+    lightseagreen: "#20b2aa",+    lightskyblue: "#87cefa",+    lightslategray: "#778899",+    lightslategrey: "#778899",+    lightsteelblue: "#b0c4de",+    lightyellow: "#ffffe0",+    lime: "#00ff00",+    limegreen: "#32cd32",+    linen: "#faf0e6",+    magenta: "#ff00ff",+    maroon: "#800000",+    mediumaquamarine: "#66cdaa",+    mediumblue: "#0000cd",+    mediumorchid: "#ba55d3",+    mediumpurple: "#9370db",+    mediumseagreen: "#3cb371",+    mediumslateblue: "#7b68ee",+    mediumspringgreen: "#00fa9a",+    mediumturquoise: "#48d1cc",+    mediumvioletred: "#c71585",+    midnightblue: "#191970",+    mintcream: "#f5fffa",+    mistyrose: "#ffe4e1",+    moccasin: "#ffe4b5",+    navajowhite: "#ffdead",+    navy: "#000080",+    oldlace: "#fdf5e6",+    olive: "#808000",+    olivedrab: "#6b8e23",+    orange: "#ffa500",+    orangered: "#ff4500",+    orchid: "#da70d6",+    palegoldenrod: "#eee8aa",+    palegreen: "#98fb98",+    paleturquoise: "#afeeee",+    palevioletred: "#db7093",+    papayawhip: "#ffefd5",+    peachpuff: "#ffdab9",+    peru: "#cd853f",+    pink: "#ffc0cb",+    plum: "#dda0dd",+    powderblue: "#b0e0e6",+    purple: "#800080",+    red: "#ff0000",+    rosybrown: "#bc8f8f",+    royalblue: "#4169e1",+    saddlebrown: "#8b4513",+    salmon: "#fa8072",+    sandybrown: "#f4a460",+    seagreen: "#2e8b57",+    seashell: "#fff5ee",+    sienna: "#a0522d",+    silver: "#c0c0c0",+    skyblue: "#87ceeb",+    slateblue: "#6a5acd",+    slategray: "#708090",+    slategrey: "#708090",+    snow: "#fffafa",+    springgreen: "#00ff7f",+    steelblue: "#4682b4",+    tan: "#d2b48c",+    teal: "#008080",+    thistle: "#d8bfd8",+    tomato: "#ff6347",+    turquoise: "#40e0d0",+    violet: "#ee82ee",+    wheat: "#f5deb3",+    white: "#ffffff",+    whitesmoke: "#f5f5f5",+    yellow: "#ffff00",+    yellowgreen: "#9acd32"+  });+  d3_rgb_names.forEach(function(key, value) {+    d3_rgb_names.set(key, d3_rgb_parse(value, d3_rgb, d3_hsl_rgb));+  });+  d3.hsl = function(h, s, l) {+    return arguments.length === 1 ? h instanceof d3_Hsl ? d3_hsl(h.h, h.s, h.l) : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl) : d3_hsl(+h, +s, +l);+  };+  var d3_hslPrototype = d3_Hsl.prototype = new d3_Color;+  d3_hslPrototype.brighter = function(k) {+    k = Math.pow(.7, arguments.length ? k : 1);+    return d3_hsl(this.h, this.s, this.l / k);+  };+  d3_hslPrototype.darker = function(k) {+    k = Math.pow(.7, arguments.length ? k : 1);+    return d3_hsl(this.h, this.s, k * this.l);+  };+  d3_hslPrototype.rgb = function() {+    return d3_hsl_rgb(this.h, this.s, this.l);+  };+  d3.hcl = function(h, c, l) {+    return arguments.length === 1 ? h instanceof d3_Hcl ? d3_hcl(h.h, h.c, h.l) : h instanceof d3_Lab ? d3_lab_hcl(h.l, h.a, h.b) : d3_lab_hcl((h = d3_rgb_lab((h = d3.rgb(h)).r, h.g, h.b)).l, h.a, h.b) : d3_hcl(+h, +c, +l);+  };+  var d3_hclPrototype = d3_Hcl.prototype = new d3_Color;+  d3_hclPrototype.brighter = function(k) {+    return d3_hcl(this.h, this.c, Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)));+  };+  d3_hclPrototype.darker = function(k) {+    return d3_hcl(this.h, this.c, Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)));+  };+  d3_hclPrototype.rgb = function() {+    return d3_hcl_lab(this.h, this.c, this.l).rgb();+  };+  d3.lab = function(l, a, b) {+    return arguments.length === 1 ? l instanceof d3_Lab ? d3_lab(l.l, l.a, l.b) : l instanceof d3_Hcl ? d3_hcl_lab(l.l, l.c, l.h) : d3_rgb_lab((l = d3.rgb(l)).r, l.g, l.b) : d3_lab(+l, +a, +b);+  };+  var d3_lab_K = 18;+  var d3_lab_X = .95047, d3_lab_Y = 1, d3_lab_Z = 1.08883;+  var d3_labPrototype = d3_Lab.prototype = new d3_Color;+  d3_labPrototype.brighter = function(k) {+    return d3_lab(Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);+  };+  d3_labPrototype.darker = function(k) {+    return d3_lab(Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);+  };+  d3_labPrototype.rgb = function() {+    return d3_lab_rgb(this.l, this.a, this.b);+  };+  var d3_select = function(s, n) {+    return n.querySelector(s);+  }, d3_selectAll = function(s, n) {+    return n.querySelectorAll(s);+  }, d3_selectRoot = document.documentElement, d3_selectMatcher = d3_selectRoot.matchesSelector || d3_selectRoot.webkitMatchesSelector || d3_selectRoot.mozMatchesSelector || d3_selectRoot.msMatchesSelector || d3_selectRoot.oMatchesSelector, d3_selectMatches = function(n, s) {+    return d3_selectMatcher.call(n, s);+  };+  if (typeof Sizzle === "function") {+    d3_select = function(s, n) {+      return Sizzle(s, n)[0] || null;+    };+    d3_selectAll = function(s, n) {+      return Sizzle.uniqueSort(Sizzle(s, n));+    };+    d3_selectMatches = Sizzle.matchesSelector;+  }+  var d3_selectionPrototype = [];+  d3.selection = function() {+    return d3_selectionRoot;+  };+  d3.selection.prototype = d3_selectionPrototype;+  d3_selectionPrototype.select = function(selector) {+    var subgroups = [], subgroup, subnode, group, node;+    if (typeof selector !== "function") selector = d3_selection_selector(selector);+    for (var j = -1, m = this.length; ++j < m; ) {+      subgroups.push(subgroup = []);+      subgroup.parentNode = (group = this[j]).parentNode;+      for (var i = -1, n = group.length; ++i < n; ) {+        if (node = group[i]) {+          subgroup.push(subnode = selector.call(node, node.__data__, i));+          if (subnode && "__data__" in node) subnode.__data__ = node.__data__;+        } else {+          subgroup.push(null);+        }+      }+    }+    return d3_selection(subgroups);+  };+  d3_selectionPrototype.selectAll = function(selector) {+    var subgroups = [], subgroup, node;+    if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);+    for (var j = -1, m = this.length; ++j < m; ) {+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {+        if (node = group[i]) {+          subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i)));+          subgroup.parentNode = node;+        }+      }+    }+    return d3_selection(subgroups);+  };+  d3_selectionPrototype.attr = function(name, value) {+    if (arguments.length < 2) {+      if (typeof name === "string") {+        var node = this.node();+        name = d3.ns.qualify(name);+        return name.local ? node.getAttributeNS(name.space, name.local) : node.getAttribute(name);+      }+      for (value in name) this.each(d3_selection_attr(value, name[value]));+      return this;+    }+    return this.each(d3_selection_attr(name, value));+  };+  d3_selectionPrototype.classed = function(name, value) {+    if (arguments.length < 2) {+      if (typeof name === "string") {+        var node = this.node(), n = (name = name.trim().split(/^|\s+/g)).length, i = -1;+        if (value = node.classList) {+          while (++i < n) if (!value.contains(name[i])) return false;+        } else {+          value = node.className;+          if (value.baseVal != null) value = value.baseVal;+          while (++i < n) if (!d3_selection_classedRe(name[i]).test(value)) return false;+        }+        return true;+      }+      for (value in name) this.each(d3_selection_classed(value, name[value]));+      return this;+    }+    return this.each(d3_selection_classed(name, value));+  };+  d3_selectionPrototype.style = function(name, value, priority) {+    var n = arguments.length;+    if (n < 3) {+      if (typeof name !== "string") {+        if (n < 2) value = "";+        for (priority in name) this.each(d3_selection_style(priority, name[priority], value));+        return this;+      }+      if (n < 2) return window.getComputedStyle(this.node(), null).getPropertyValue(name);+      priority = "";+    }+    return this.each(d3_selection_style(name, value, priority));+  };+  d3_selectionPrototype.property = function(name, value) {+    if (arguments.length < 2) {+      if (typeof name === "string") return this.node()[name];+      for (value in name) this.each(d3_selection_property(value, name[value]));+      return this;+    }+    return this.each(d3_selection_property(name, value));+  };+  d3_selectionPrototype.text = function(value) {+    return arguments.length < 1 ? this.node().textContent : this.each(typeof value === "function" ? function() {+      var v = value.apply(this, arguments);+      this.textContent = v == null ? "" : v;+    } : value == null ? function() {+      this.textContent = "";+    } : function() {+      this.textContent = value;+    });+  };+  d3_selectionPrototype.html = function(value) {+    return arguments.length < 1 ? this.node().innerHTML : this.each(typeof value === "function" ? function() {+      var v = value.apply(this, arguments);+      this.innerHTML = v == null ? "" : v;+    } : value == null ? function() {+      this.innerHTML = "";+    } : function() {+      this.innerHTML = value;+    });+  };+  d3_selectionPrototype.append = function(name) {+    function append() {+      return this.appendChild(document.createElementNS(this.namespaceURI, name));+    }+    function appendNS() {+      return this.appendChild(document.createElementNS(name.space, name.local));+    }+    name = d3.ns.qualify(name);+    return this.select(name.local ? appendNS : append);+  };+  d3_selectionPrototype.insert = function(name, before) {+    function insert() {+      return this.insertBefore(document.createElementNS(this.namespaceURI, name), d3_select(before, this));+    }+    function insertNS() {+      return this.insertBefore(document.createElementNS(name.space, name.local), d3_select(before, this));+    }+    name = d3.ns.qualify(name);+    return this.select(name.local ? insertNS : insert);+  };+  d3_selectionPrototype.remove = function() {+    return this.each(function() {+      var parent = this.parentNode;+      if (parent) parent.removeChild(this);+    });+  };+  d3_selectionPrototype.data = function(value, key) {+    function bind(group, groupData) {+      var i, n = group.length, m = groupData.length, n0 = Math.min(n, m), n1 = Math.max(n, m), updateNodes = [], enterNodes = [], exitNodes = [], node, nodeData;+      if (key) {+        var nodeByKeyValue = new d3_Map, keyValues = [], keyValue, j = groupData.length;+        for (i = -1; ++i < n; ) {+          keyValue = key.call(node = group[i], node.__data__, i);+          if (nodeByKeyValue.has(keyValue)) {+            exitNodes[j++] = node;+          } else {+            nodeByKeyValue.set(keyValue, node);+          }+          keyValues.push(keyValue);+        }+        for (i = -1; ++i < m; ) {+          keyValue = key.call(groupData, nodeData = groupData[i], i);+          if (nodeByKeyValue.has(keyValue)) {+            updateNodes[i] = node = nodeByKeyValue.get(keyValue);+            node.__data__ = nodeData;+            enterNodes[i] = exitNodes[i] = null;+          } else {+            enterNodes[i] = d3_selection_dataNode(nodeData);+            updateNodes[i] = exitNodes[i] = null;+          }+          nodeByKeyValue.remove(keyValue);+        }+        for (i = -1; ++i < n; ) {+          if (nodeByKeyValue.has(keyValues[i])) {+            exitNodes[i] = group[i];+          }+        }+      } else {+        for (i = -1; ++i < n0; ) {+          node = group[i];+          nodeData = groupData[i];+          if (node) {+            node.__data__ = nodeData;+            updateNodes[i] = node;+            enterNodes[i] = exitNodes[i] = null;+          } else {+            enterNodes[i] = d3_selection_dataNode(nodeData);+            updateNodes[i] = exitNodes[i] = null;+          }+        }+        for (; i < m; ++i) {+          enterNodes[i] = d3_selection_dataNode(groupData[i]);+          updateNodes[i] = exitNodes[i] = null;+        }+        for (; i < n1; ++i) {+          exitNodes[i] = group[i];+          enterNodes[i] = updateNodes[i] = null;+        }+      }+      enterNodes.update = updateNodes;+      enterNodes.parentNode = updateNodes.parentNode = exitNodes.parentNode = group.parentNode;+      enter.push(enterNodes);+      update.push(updateNodes);+      exit.push(exitNodes);+    }+    var i = -1, n = this.length, group, node;+    if (!arguments.length) {+      value = new Array(n = (group = this[0]).length);+      while (++i < n) {+        if (node = group[i]) {+          value[i] = node.__data__;+        }+      }+      return value;+    }+    var enter = d3_selection_enter([]), update = d3_selection([]), exit = d3_selection([]);+    if (typeof value === "function") {+      while (++i < n) {+        bind(group = this[i], value.call(group, group.parentNode.__data__, i));+      }+    } else {+      while (++i < n) {+        bind(group = this[i], value);+      }+    }+    update.enter = function() {+      return enter;+    };+    update.exit = function() {+      return exit;+    };+    return update;+  };+  d3_selectionPrototype.datum = d3_selectionPrototype.map = function(value) {+    return arguments.length < 1 ? this.property("__data__") : this.property("__data__", value);+  };+  d3_selectionPrototype.filter = function(filter) {+    var subgroups = [], subgroup, group, node;+    if (typeof filter !== "function") filter = d3_selection_filter(filter);+    for (var j = 0, m = this.length; j < m; j++) {+      subgroups.push(subgroup = []);+      subgroup.parentNode = (group = this[j]).parentNode;+      for (var i = 0, n = group.length; i < n; i++) {+        if ((node = group[i]) && filter.call(node, node.__data__, i)) {+          subgroup.push(node);+        }+      }+    }+    return d3_selection(subgroups);+  };+  d3_selectionPrototype.order = function() {+    for (var j = -1, m = this.length; ++j < m; ) {+      for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0; ) {+        if (node = group[i]) {+          if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);+          next = node;+        }+      }+    }+    return this;+  };+  d3_selectionPrototype.sort = function(comparator) {+    comparator = d3_selection_sortComparator.apply(this, arguments);+    for (var j = -1, m = this.length; ++j < m; ) this[j].sort(comparator);+    return this.order();+  };+  d3_selectionPrototype.on = function(type, listener, capture) {+    var n = arguments.length;+    if (n < 3) {+      if (typeof type !== "string") {+        if (n < 2) listener = false;+        for (capture in type) this.each(d3_selection_on(capture, type[capture], listener));+        return this;+      }+      if (n < 2) return (n = this.node()["__on" + type]) && n._;+      capture = false;+    }+    return this.each(d3_selection_on(type, listener, capture));+  };+  d3_selectionPrototype.each = function(callback) {+    return d3_selection_each(this, function(node, i, j) {+      callback.call(node, node.__data__, i, j);+    });+  };+  d3_selectionPrototype.call = function(callback) {+    callback.apply(this, (arguments[0] = this, arguments));+    return this;+  };+  d3_selectionPrototype.empty = function() {+    return !this.node();+  };+  d3_selectionPrototype.node = function(callback) {+    for (var j = 0, m = this.length; j < m; j++) {+      for (var group = this[j], i = 0, n = group.length; i < n; i++) {+        var node = group[i];+        if (node) return node;+      }+    }+    return null;+  };+  d3_selectionPrototype.transition = function() {+    var subgroups = [], subgroup, node;+    for (var j = -1, m = this.length; ++j < m; ) {+      subgroups.push(subgroup = []);+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {+        subgroup.push((node = group[i]) ? {+          node: node,+          delay: d3_transitionDelay,+          duration: d3_transitionDuration+        } : null);+      }+    }+    return d3_transition(subgroups, d3_transitionId || ++d3_transitionNextId, Date.now());+  };+  var d3_selectionRoot = d3_selection([ [ document ] ]);+  d3_selectionRoot[0].parentNode = d3_selectRoot;+  d3.select = function(selector) {+    return typeof selector === "string" ? d3_selectionRoot.select(selector) : d3_selection([ [ selector ] ]);+  };+  d3.selectAll = function(selector) {+    return typeof selector === "string" ? d3_selectionRoot.selectAll(selector) : d3_selection([ d3_array(selector) ]);+  };+  var d3_selection_enterPrototype = [];+  d3.selection.enter = d3_selection_enter;+  d3.selection.enter.prototype = d3_selection_enterPrototype;+  d3_selection_enterPrototype.append = d3_selectionPrototype.append;+  d3_selection_enterPrototype.insert = d3_selectionPrototype.insert;+  d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;+  d3_selection_enterPrototype.node = d3_selectionPrototype.node;+  d3_selection_enterPrototype.select = function(selector) {+    var subgroups = [], subgroup, subnode, upgroup, group, node;+    for (var j = -1, m = this.length; ++j < m; ) {+      upgroup = (group = this[j]).update;+      subgroups.push(subgroup = []);+      subgroup.parentNode = group.parentNode;+      for (var i = -1, n = group.length; ++i < n; ) {+        if (node = group[i]) {+          subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i));+          subnode.__data__ = node.__data__;+        } else {+          subgroup.push(null);+        }+      }+    }+    return d3_selection(subgroups);+  };+  var d3_transitionPrototype = [], d3_transitionNextId = 0, d3_transitionId = 0, d3_transitionDefaultDelay = 0, d3_transitionDefaultDuration = 250, d3_transitionDefaultEase = d3.ease("cubic-in-out"), d3_transitionDelay = d3_transitionDefaultDelay, d3_transitionDuration = d3_transitionDefaultDuration, d3_transitionEase = d3_transitionDefaultEase;+  d3_transitionPrototype.call = d3_selectionPrototype.call;+  d3.transition = function(selection) {+    return arguments.length ? d3_transitionId ? selection.transition() : selection : d3_selectionRoot.transition();+  };+  d3.transition.prototype = d3_transitionPrototype;+  d3_transitionPrototype.select = function(selector) {+    var subgroups = [], subgroup, subnode, node;+    if (typeof selector !== "function") selector = d3_selection_selector(selector);+    for (var j = -1, m = this.length; ++j < m; ) {+      subgroups.push(subgroup = []);+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {+        if ((node = group[i]) && (subnode = selector.call(node.node, node.node.__data__, i))) {+          if ("__data__" in node.node) subnode.__data__ = node.node.__data__;+          subgroup.push({+            node: subnode,+            delay: node.delay,+            duration: node.duration+          });+        } else {+          subgroup.push(null);+        }+      }+    }+    return d3_transition(subgroups, this.id, this.time).ease(this.ease());+  };+  d3_transitionPrototype.selectAll = function(selector) {+    var subgroups = [], subgroup, subnodes, node;+    if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);+    for (var j = -1, m = this.length; ++j < m; ) {+      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {+        if (node = group[i]) {+          subnodes = selector.call(node.node, node.node.__data__, i);+          subgroups.push(subgroup = []);+          for (var k = -1, o = subnodes.length; ++k < o; ) {+            subgroup.push({+              node: subnodes[k],+              delay: node.delay,+              duration: node.duration+            });+          }+        }+      }+    }+    return d3_transition(subgroups, this.id, this.time).ease(this.ease());+  };+  d3_transitionPrototype.filter = function(filter) {+    var subgroups = [], subgroup, group, node;+    if (typeof filter !== "function") filter = d3_selection_filter(filter);+    for (var j = 0, m = this.length; j < m; j++) {+      subgroups.push(subgroup = []);+      for (var group = this[j], i = 0, n = group.length; i < n; i++) {+        if ((node = group[i]) && filter.call(node.node, node.node.__data__, i)) {+          subgroup.push(node);+        }+      }+    }+    return d3_transition(subgroups, this.id, this.time).ease(this.ease());+  };+  d3_transitionPrototype.attr = function(name, value) {+    if (arguments.length < 2) {+      for (value in name) this.attrTween(value, d3_tweenByName(name[value], value));+      return this;+    }+    return this.attrTween(name, d3_tweenByName(value, name));+  };+  d3_transitionPrototype.attrTween = function(nameNS, tween) {+    function attrTween(d, i) {+      var f = tween.call(this, d, i, this.getAttribute(name));+      return f === d3_tweenRemove ? (this.removeAttribute(name), null) : f && function(t) {+        this.setAttribute(name, f(t));+      };+    }+    function attrTweenNS(d, i) {+      var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));+      return f === d3_tweenRemove ? (this.removeAttributeNS(name.space, name.local), null) : f && function(t) {+        this.setAttributeNS(name.space, name.local, f(t));+      };+    }+    var name = d3.ns.qualify(nameNS);+    return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween);+  };+  d3_transitionPrototype.style = function(name, value, priority) {+    var n = arguments.length;+    if (n < 3) {+      if (typeof name !== "string") {+        if (n < 2) value = "";+        for (priority in name) this.styleTween(priority, d3_tweenByName(name[priority], priority), value);+        return this;+      }+      priority = "";+    }+    return this.styleTween(name, d3_tweenByName(value, name), priority);+  };+  d3_transitionPrototype.styleTween = function(name, tween, priority) {+    if (arguments.length < 3) priority = "";+    return this.tween("style." + name, function(d, i) {+      var f = tween.call(this, d, i, window.getComputedStyle(this, null).getPropertyValue(name));+      return f === d3_tweenRemove ? (this.style.removeProperty(name), null) : f && function(t) {+        this.style.setProperty(name, f(t), priority);+      };+    });+  };+  d3_transitionPrototype.text = function(value) {+    return this.tween("text", function(d, i) {+      this.textContent = typeof value === "function" ? value.call(this, d, i) : value;+    });+  };+  d3_transitionPrototype.remove = function() {+    return this.each("end.transition", function() {+      var p;+      if (!this.__transition__ && (p = this.parentNode)) p.removeChild(this);+    });+  };+  d3_transitionPrototype.delay = function(value) {+    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {+      node.delay = value.call(node = node.node, node.__data__, i, j) | 0;+    } : (value = value | 0, function(node) {+      node.delay = value;+    }));+  };+  d3_transitionPrototype.duration = function(value) {+    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {+      node.duration = Math.max(1, value.call(node = node.node, node.__data__, i, j) | 0);+    } : (value = Math.max(1, value | 0), function(node) {+      node.duration = value;+    }));+  };+  d3_transitionPrototype.transition = function() {+    return this.select(d3_this);+  };+  d3.tween = function(b, interpolate) {+    function tweenFunction(d, i, a) {+      var v = b.call(this, d, i);+      return v == null ? a != "" && d3_tweenRemove : a != v && interpolate(a, v + "");+    }+    function tweenString(d, i, a) {+      return a != b && interpolate(a, b);+    }+    return typeof b === "function" ? tweenFunction : b == null ? d3_tweenNull : (b += "", tweenString);+  };+  var d3_tweenRemove = {};+  var d3_timer_id = 0, d3_timer_byId = {}, d3_timer_queue = null, d3_timer_interval, d3_timer_timeout;+  d3.timer = function(callback, delay, then) {+    if (arguments.length < 3) {+      if (arguments.length < 2) delay = 0; else if (!isFinite(delay)) return;+      then = Date.now();+    }+    var timer = d3_timer_byId[callback.id];+    if (timer && timer.callback === callback) {+      timer.then = then;+      timer.delay = delay;+    } else d3_timer_byId[callback.id = ++d3_timer_id] = d3_timer_queue = {+      callback: callback,+      then: then,+      delay: delay,+      next: d3_timer_queue+    };+    if (!d3_timer_interval) {+      d3_timer_timeout = clearTimeout(d3_timer_timeout);+      d3_timer_interval = 1;+      d3_timer_frame(d3_timer_step);+    }+  };+  d3.timer.flush = function() {+    var elapsed, now = Date.now(), t1 = d3_timer_queue;+    while (t1) {+      elapsed = now - t1.then;+      if (!t1.delay) t1.flush = t1.callback(elapsed);+      t1 = t1.next;+    }+    d3_timer_flush();+  };+  var d3_timer_frame = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function(callback) {+    setTimeout(callback, 17);+  };+  d3.mouse = function(container) {+    return d3_mousePoint(container, d3_eventSource());+  };+  var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0;+  d3.touches = function(container, touches) {+    if (arguments.length < 2) touches = d3_eventSource().touches;+    return touches ? d3_array(touches).map(function(touch) {+      var point = d3_mousePoint(container, touch);+      point.identifier = touch.identifier;+      return point;+    }) : [];+  };+  d3.scale = {};+  d3.scale.linear = function() {+    return d3_scale_linear([ 0, 1 ], [ 0, 1 ], d3.interpolate, false);+  };+  d3.scale.log = function() {+    return d3_scale_log(d3.scale.linear(), d3_scale_logp);+  };+  var d3_scale_logFormat = d3.format(".0e");+  d3_scale_logp.pow = function(x) {+    return Math.pow(10, x);+  };+  d3_scale_logn.pow = function(x) {+    return -Math.pow(10, -x);+  };+  d3.scale.pow = function() {+    return d3_scale_pow(d3.scale.linear(), 1);+  };+  d3.scale.sqrt = function() {+    return d3.scale.pow().exponent(.5);+  };+  d3.scale.ordinal = function() {+    return d3_scale_ordinal([], {+      t: "range",+      a: [ [] ]+    });+  };+  d3.scale.category10 = function() {+    return d3.scale.ordinal().range(d3_category10);+  };+  d3.scale.category20 = function() {+    return d3.scale.ordinal().range(d3_category20);+  };+  d3.scale.category20b = function() {+    return d3.scale.ordinal().range(d3_category20b);+  };+  d3.scale.category20c = function() {+    return d3.scale.ordinal().range(d3_category20c);+  };+  var d3_category10 = [ "#1f77b4", "#ff7f0e", "#2ca02c", "#d62728", "#9467bd", "#8c564b", "#e377c2", "#7f7f7f", "#bcbd22", "#17becf" ];+  var d3_category20 = [ "#1f77b4", "#aec7e8", "#ff7f0e", "#ffbb78", "#2ca02c", "#98df8a", "#d62728", "#ff9896", "#9467bd", "#c5b0d5", "#8c564b", "#c49c94", "#e377c2", "#f7b6d2", "#7f7f7f", "#c7c7c7", "#bcbd22", "#dbdb8d", "#17becf", "#9edae5" ];+  var d3_category20b = [ "#393b79", "#5254a3", "#6b6ecf", "#9c9ede", "#637939", "#8ca252", "#b5cf6b", "#cedb9c", "#8c6d31", "#bd9e39", "#e7ba52", "#e7cb94", "#843c39", "#ad494a", "#d6616b", "#e7969c", "#7b4173", "#a55194", "#ce6dbd", "#de9ed6" ];+  var d3_category20c = [ "#3182bd", "#6baed6", "#9ecae1", "#c6dbef", "#e6550d", "#fd8d3c", "#fdae6b", "#fdd0a2", "#31a354", "#74c476", "#a1d99b", "#c7e9c0", "#756bb1", "#9e9ac8", "#bcbddc", "#dadaeb", "#636363", "#969696", "#bdbdbd", "#d9d9d9" ];+  d3.scale.quantile = function() {+    return d3_scale_quantile([], []);+  };+  d3.scale.quantize = function() {+    return d3_scale_quantize(0, 1, [ 0, 1 ]);+  };+  d3.scale.threshold = function() {+    return d3_scale_threshold([ .5 ], [ 0, 1 ]);+  };+  d3.scale.identity = function() {+    return d3_scale_identity([ 0, 1 ]);+  };+  d3.svg = {};+  d3.svg.arc = function() {+    function arc() {+      var r0 = innerRadius.apply(this, arguments), r1 = outerRadius.apply(this, arguments), a0 = startAngle.apply(this, arguments) + d3_svg_arcOffset, a1 = endAngle.apply(this, arguments) + d3_svg_arcOffset, da = (a1 < a0 && (da = a0, a0 = a1, a1 = da), a1 - a0), df = da < Math.PI ? "0" : "1", c0 = Math.cos(a0), s0 = Math.sin(a0), c1 = Math.cos(a1), s1 = Math.sin(a1);+      return da >= d3_svg_arcMax ? r0 ? "M0," + r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + -r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 + "M0," + r0 + "A" + r0 + "," + r0 + " 0 1,0 0," + -r0 + "A" + r0 + "," + r0 + " 0 1,0 0," + r0 + "Z" : "M0," + r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + -r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 + "Z" : r0 ? "M" + r1 * c0 + "," + r1 * s0 + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 + "L" + r0 * c1 + "," + r0 * s1 + "A" + r0 + "," + r0 + " 0 " + df + ",0 " + r0 * c0 + "," + r0 * s0 + "Z" : "M" + r1 * c0 + "," + r1 * s0 + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 + "L0,0" + "Z";+    }+    var innerRadius = d3_svg_arcInnerRadius, outerRadius = d3_svg_arcOuterRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;+    arc.innerRadius = function(v) {+      if (!arguments.length) return innerRadius;+      innerRadius = d3_functor(v);+      return arc;+    };+    arc.outerRadius = function(v) {+      if (!arguments.length) return outerRadius;+      outerRadius = d3_functor(v);+      return arc;+    };+    arc.startAngle = function(v) {+      if (!arguments.length) return startAngle;+      startAngle = d3_functor(v);+      return arc;+    };+    arc.endAngle = function(v) {+      if (!arguments.length) return endAngle;+      endAngle = d3_functor(v);+      return arc;+    };+    arc.centroid = function() {+      var r = (innerRadius.apply(this, arguments) + outerRadius.apply(this, arguments)) / 2, a = (startAngle.apply(this, arguments) + endAngle.apply(this, arguments)) / 2 + d3_svg_arcOffset;+      return [ Math.cos(a) * r, Math.sin(a) * r ];+    };+    return arc;+  };+  var d3_svg_arcOffset = -Math.PI / 2, d3_svg_arcMax = 2 * Math.PI - 1e-6;+  d3.svg.line = function() {+    return d3_svg_line(d3_identity);+  };+  var d3_svg_lineInterpolators = d3.map({+    linear: d3_svg_lineLinear,+    "linear-closed": d3_svg_lineLinearClosed,+    "step-before": d3_svg_lineStepBefore,+    "step-after": d3_svg_lineStepAfter,+    basis: d3_svg_lineBasis,+    "basis-open": d3_svg_lineBasisOpen,+    "basis-closed": d3_svg_lineBasisClosed,+    bundle: d3_svg_lineBundle,+    cardinal: d3_svg_lineCardinal,+    "cardinal-open": d3_svg_lineCardinalOpen,+    "cardinal-closed": d3_svg_lineCardinalClosed,+    monotone: d3_svg_lineMonotone+  });+  d3_svg_lineInterpolators.forEach(function(key, value) {+    value.key = key;+    value.closed = /-closed$/.test(key);+  });+  var d3_svg_lineBasisBezier1 = [ 0, 2 / 3, 1 / 3, 0 ], d3_svg_lineBasisBezier2 = [ 0, 1 / 3, 2 / 3, 0 ], d3_svg_lineBasisBezier3 = [ 0, 1 / 6, 2 / 3, 1 / 6 ];+  d3.svg.line.radial = function() {+    var line = d3_svg_line(d3_svg_lineRadial);+    line.radius = line.x, delete line.x;+    line.angle = line.y, delete line.y;+    return line;+  };+  d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;+  d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;+  d3.svg.area = function() {+    return d3_svg_area(d3_identity);+  };+  d3.svg.area.radial = function() {+    var area = d3_svg_area(d3_svg_lineRadial);+    area.radius = area.x, delete area.x;+    area.innerRadius = area.x0, delete area.x0;+    area.outerRadius = area.x1, delete area.x1;+    area.angle = area.y, delete area.y;+    area.startAngle = area.y0, delete area.y0;+    area.endAngle = area.y1, delete area.y1;+    return area;+  };+  d3.svg.chord = function() {+    function chord(d, i) {+      var s = subgroup(this, source, d, i), t = subgroup(this, target, d, i);+      return "M" + s.p0 + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t) ? curve(s.r, s.p1, s.r, s.p0) : curve(s.r, s.p1, t.r, t.p0) + arc(t.r, t.p1, t.a1 - t.a0) + curve(t.r, t.p1, s.r, s.p0)) + "Z";+    }+    function subgroup(self, f, d, i) {+      var subgroup = f.call(self, d, i), r = radius.call(self, subgroup, i), a0 = startAngle.call(self, subgroup, i) + d3_svg_arcOffset, a1 = endAngle.call(self, subgroup, i) + d3_svg_arcOffset;+      return {+        r: r,+        a0: a0,+        a1: a1,+        p0: [ r * Math.cos(a0), r * Math.sin(a0) ],+        p1: [ r * Math.cos(a1), r * Math.sin(a1) ]+      };+    }+    function equals(a, b) {+      return a.a0 == b.a0 && a.a1 == b.a1;+    }+    function arc(r, p, a) {+      return "A" + r + "," + r + " 0 " + +(a > Math.PI) + ",1 " + p;+    }+    function curve(r0, p0, r1, p1) {+      return "Q 0,0 " + p1;+    }+    var source = d3_svg_chordSource, target = d3_svg_chordTarget, radius = d3_svg_chordRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;+    chord.radius = function(v) {+      if (!arguments.length) return radius;+      radius = d3_functor(v);+      return chord;+    };+    chord.source = function(v) {+      if (!arguments.length) return source;+      source = d3_functor(v);+      return chord;+    };+    chord.target = function(v) {+      if (!arguments.length) return target;+      target = d3_functor(v);+      return chord;+    };+    chord.startAngle = function(v) {+      if (!arguments.length) return startAngle;+      startAngle = d3_functor(v);+      return chord;+    };+    chord.endAngle = function(v) {+      if (!arguments.length) return endAngle;+      endAngle = d3_functor(v);+      return chord;+    };+    return chord;+  };+  d3.svg.diagonal = function() {+    function diagonal(d, i) {+      var p0 = source.call(this, d, i), p3 = target.call(this, d, i), m = (p0.y + p3.y) / 2, p = [ p0, {+        x: p0.x,+        y: m+      }, {+        x: p3.x,+        y: m+      }, p3 ];+      p = p.map(projection);+      return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3];+    }+    var source = d3_svg_chordSource, target = d3_svg_chordTarget, projection = d3_svg_diagonalProjection;+    diagonal.source = function(x) {+      if (!arguments.length) return source;+      source = d3_functor(x);+      return diagonal;+    };+    diagonal.target = function(x) {+      if (!arguments.length) return target;+      target = d3_functor(x);+      return diagonal;+    };+    diagonal.projection = function(x) {+      if (!arguments.length) return projection;+      projection = x;+      return diagonal;+    };+    return diagonal;+  };+  d3.svg.diagonal.radial = function() {+    var diagonal = d3.svg.diagonal(), projection = d3_svg_diagonalProjection, projection_ = diagonal.projection;+    diagonal.projection = function(x) {+      return arguments.length ? projection_(d3_svg_diagonalRadialProjection(projection = x)) : projection;+    };+    return diagonal;+  };+  d3.svg.mouse = d3.mouse;+  d3.svg.touches = d3.touches;+  d3.svg.symbol = function() {+    function symbol(d, i) {+      return (d3_svg_symbols.get(type.call(this, d, i)) || d3_svg_symbolCircle)(size.call(this, d, i));+    }+    var type = d3_svg_symbolType, size = d3_svg_symbolSize;+    symbol.type = function(x) {+      if (!arguments.length) return type;+      type = d3_functor(x);+      return symbol;+    };+    symbol.size = function(x) {+      if (!arguments.length) return size;+      size = d3_functor(x);+      return symbol;+    };+    return symbol;+  };+  var d3_svg_symbols = d3.map({+    circle: d3_svg_symbolCircle,+    cross: function(size) {+      var r = Math.sqrt(size / 5) / 2;+      return "M" + -3 * r + "," + -r + "H" + -r + "V" + -3 * r + "H" + r + "V" + -r + "H" + 3 * r + "V" + r + "H" + r + "V" + 3 * r + "H" + -r + "V" + r + "H" + -3 * r + "Z";+    },+    diamond: function(size) {+      var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)), rx = ry * d3_svg_symbolTan30;+      return "M0," + -ry + "L" + rx + ",0" + " 0," + ry + " " + -rx + ",0" + "Z";+    },+    square: function(size) {+      var r = Math.sqrt(size) / 2;+      return "M" + -r + "," + -r + "L" + r + "," + -r + " " + r + "," + r + " " + -r + "," + r + "Z";+    },+    "triangle-down": function(size) {+      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;+      return "M0," + ry + "L" + rx + "," + -ry + " " + -rx + "," + -ry + "Z";+    },+    "triangle-up": function(size) {+      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;+      return "M0," + -ry + "L" + rx + "," + ry + " " + -rx + "," + ry + "Z";+    }+  });+  d3.svg.symbolTypes = d3_svg_symbols.keys();+  var d3_svg_symbolSqrt3 = Math.sqrt(3), d3_svg_symbolTan30 = Math.tan(30 * Math.PI / 180);+  d3.svg.axis = function() {+    function axis(g) {+      g.each(function() {+        var g = d3.select(this);+        var ticks = tickValues == null ? scale.ticks ? scale.ticks.apply(scale, tickArguments_) : scale.domain() : tickValues, tickFormat = tickFormat_ == null ? scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments_) : String : tickFormat_;+        var subticks = d3_svg_axisSubdivide(scale, ticks, tickSubdivide), subtick = g.selectAll(".minor").data(subticks, String), subtickEnter = subtick.enter().insert("line", "g").attr("class", "tick minor").style("opacity", 1e-6), subtickExit = d3.transition(subtick.exit()).style("opacity", 1e-6).remove(), subtickUpdate = d3.transition(subtick).style("opacity", 1);+        var tick = g.selectAll("g").data(ticks, String), tickEnter = tick.enter().insert("g", "path").style("opacity", 1e-6), tickExit = d3.transition(tick.exit()).style("opacity", 1e-6).remove(), tickUpdate = d3.transition(tick).style("opacity", 1), tickTransform;+        var range = d3_scaleRange(scale), path = g.selectAll(".domain").data([ 0 ]), pathEnter = path.enter().append("path").attr("class", "domain"), pathUpdate = d3.transition(path);+        var scale1 = scale.copy(), scale0 = this.__chart__ || scale1;+        this.__chart__ = scale1;+        tickEnter.append("line").attr("class", "tick");+        tickEnter.append("text");+        var lineEnter = tickEnter.select("line"), lineUpdate = tickUpdate.select("line"), text = tick.select("text").text(tickFormat), textEnter = tickEnter.select("text"), textUpdate = tickUpdate.select("text");+        switch (orient) {+         case "bottom":+          {+            tickTransform = d3_svg_axisX;+            subtickEnter.attr("y2", tickMinorSize);+            subtickUpdate.attr("x2", 0).attr("y2", tickMinorSize);+            lineEnter.attr("y2", tickMajorSize);+            textEnter.attr("y", Math.max(tickMajorSize, 0) + tickPadding);+            lineUpdate.attr("x2", 0).attr("y2", tickMajorSize);+            textUpdate.attr("x", 0).attr("y", Math.max(tickMajorSize, 0) + tickPadding);+            text.attr("dy", ".71em").attr("text-anchor", "middle");+            pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize);+            break;+          }+         case "top":+          {+            tickTransform = d3_svg_axisX;+            subtickEnter.attr("y2", -tickMinorSize);+            subtickUpdate.attr("x2", 0).attr("y2", -tickMinorSize);+            lineEnter.attr("y2", -tickMajorSize);+            textEnter.attr("y", -(Math.max(tickMajorSize, 0) + tickPadding));+            lineUpdate.attr("x2", 0).attr("y2", -tickMajorSize);+            textUpdate.attr("x", 0).attr("y", -(Math.max(tickMajorSize, 0) + tickPadding));+            text.attr("dy", "0em").attr("text-anchor", "middle");+            pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize);+            break;+          }+         case "left":+          {+            tickTransform = d3_svg_axisY;+            subtickEnter.attr("x2", -tickMinorSize);+            subtickUpdate.attr("x2", -tickMinorSize).attr("y2", 0);+            lineEnter.attr("x2", -tickMajorSize);+            textEnter.attr("x", -(Math.max(tickMajorSize, 0) + tickPadding));+            lineUpdate.attr("x2", -tickMajorSize).attr("y2", 0);+            textUpdate.attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("y", 0);+            text.attr("dy", ".32em").attr("text-anchor", "end");+            pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize);+            break;+          }+         case "right":+          {+            tickTransform = d3_svg_axisY;+            subtickEnter.attr("x2", tickMinorSize);+            subtickUpdate.attr("x2", tickMinorSize).attr("y2", 0);+            lineEnter.attr("x2", tickMajorSize);+            textEnter.attr("x", Math.max(tickMajorSize, 0) + tickPadding);+            lineUpdate.attr("x2", tickMajorSize).attr("y2", 0);+            textUpdate.attr("x", Math.max(tickMajorSize, 0) + tickPadding).attr("y", 0);+            text.attr("dy", ".32em").attr("text-anchor", "start");+            pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize);+            break;+          }+        }+        if (scale.ticks) {+          tickEnter.call(tickTransform, scale0);+          tickUpdate.call(tickTransform, scale1);+          tickExit.call(tickTransform, scale1);+          subtickEnter.call(tickTransform, scale0);+          subtickUpdate.call(tickTransform, scale1);+          subtickExit.call(tickTransform, scale1);+        } else {+          var dx = scale1.rangeBand() / 2, x = function(d) {+            return scale1(d) + dx;+          };+          tickEnter.call(tickTransform, x);+          tickUpdate.call(tickTransform, x);+        }+      });+    }+    var scale = d3.scale.linear(), orient = "bottom", tickMajorSize = 6, tickMinorSize = 6, tickEndSize = 6, tickPadding = 3, tickArguments_ = [ 10 ], tickValues = null, tickFormat_, tickSubdivide = 0;+    axis.scale = function(x) {+      if (!arguments.length) return scale;+      scale = x;+      return axis;+    };+    axis.orient = function(x) {+      if (!arguments.length) return orient;+      orient = x;+      return axis;+    };+    axis.ticks = function() {+      if (!arguments.length) return tickArguments_;+      tickArguments_ = arguments;+      return axis;+    };+    axis.tickValues = function(x) {+      if (!arguments.length) return tickValues;+      tickValues = x;+      return axis;+    };+    axis.tickFormat = function(x) {+      if (!arguments.length) return tickFormat_;+      tickFormat_ = x;+      return axis;+    };+    axis.tickSize = function(x, y, z) {+      if (!arguments.length) return tickMajorSize;+      var n = arguments.length - 1;+      tickMajorSize = +x;+      tickMinorSize = n > 1 ? +y : tickMajorSize;+      tickEndSize = n > 0 ? +arguments[n] : tickMajorSize;+      return axis;+    };+    axis.tickPadding = function(x) {+      if (!arguments.length) return tickPadding;+      tickPadding = +x;+      return axis;+    };+    axis.tickSubdivide = function(x) {+      if (!arguments.length) return tickSubdivide;+      tickSubdivide = +x;+      return axis;+    };+    return axis;+  };+  d3.svg.brush = function() {+    function brush(g) {+      g.each(function() {+        var g = d3.select(this), bg = g.selectAll(".background").data([ 0 ]), fg = g.selectAll(".extent").data([ 0 ]), tz = g.selectAll(".resize").data(resizes, String), e;+        g.style("pointer-events", "all").on("mousedown.brush", brushstart).on("touchstart.brush", brushstart);+        bg.enter().append("rect").attr("class", "background").style("visibility", "hidden").style("cursor", "crosshair");+        fg.enter().append("rect").attr("class", "extent").style("cursor", "move");+        tz.enter().append("g").attr("class", function(d) {+          return "resize " + d;+        }).style("cursor", function(d) {+          return d3_svg_brushCursor[d];+        }).append("rect").attr("x", function(d) {+          return /[ew]$/.test(d) ? -3 : null;+        }).attr("y", function(d) {+          return /^[ns]/.test(d) ? -3 : null;+        }).attr("width", 6).attr("height", 6).style("visibility", "hidden");+        tz.style("display", brush.empty() ? "none" : null);+        tz.exit().remove();+        if (x) {+          e = d3_scaleRange(x);+          bg.attr("x", e[0]).attr("width", e[1] - e[0]);+          redrawX(g);+        }+        if (y) {+          e = d3_scaleRange(y);+          bg.attr("y", e[0]).attr("height", e[1] - e[0]);+          redrawY(g);+        }+        redraw(g);+      });+    }+    function redraw(g) {+      g.selectAll(".resize").attr("transform", function(d) {+        return "translate(" + extent[+/e$/.test(d)][0] + "," + extent[+/^s/.test(d)][1] + ")";+      });+    }+    function redrawX(g) {+      g.select(".extent").attr("x", extent[0][0]);+      g.selectAll(".extent,.n>rect,.s>rect").attr("width", extent[1][0] - extent[0][0]);+    }+    function redrawY(g) {+      g.select(".extent").attr("y", extent[0][1]);+      g.selectAll(".extent,.e>rect,.w>rect").attr("height", extent[1][1] - extent[0][1]);+    }+    function brushstart() {+      function mouse() {+        var touches = d3.event.changedTouches;+        return touches ? d3.touches(target, touches)[0] : d3.mouse(target);+      }+      function keydown() {+        if (d3.event.keyCode == 32) {+          if (!dragging) {+            center = null;+            origin[0] -= extent[1][0];+            origin[1] -= extent[1][1];+            dragging = 2;+          }+          d3_eventCancel();+        }+      }+      function keyup() {+        if (d3.event.keyCode == 32 && dragging == 2) {+          origin[0] += extent[1][0];+          origin[1] += extent[1][1];+          dragging = 0;+          d3_eventCancel();+        }+      }+      function brushmove() {+        var point = mouse(), moved = false;+        if (offset) {+          point[0] += offset[0];+          point[1] += offset[1];+        }+        if (!dragging) {+          if (d3.event.altKey) {+            if (!center) center = [ (extent[0][0] + extent[1][0]) / 2, (extent[0][1] + extent[1][1]) / 2 ];+            origin[0] = extent[+(point[0] < center[0])][0];+            origin[1] = extent[+(point[1] < center[1])][1];+          } else center = null;+        }+        if (resizingX && move1(point, x, 0)) {+          redrawX(g);+          moved = true;+        }+        if (resizingY && move1(point, y, 1)) {+          redrawY(g);+          moved = true;+        }+        if (moved) {+          redraw(g);+          event_({+            type: "brush",+            mode: dragging ? "move" : "resize"+          });+        }+      }+      function move1(point, scale, i) {+        var range = d3_scaleRange(scale), r0 = range[0], r1 = range[1], position = origin[i], size = extent[1][i] - extent[0][i], min, max;+        if (dragging) {+          r0 -= position;+          r1 -= size + position;+        }+        min = Math.max(r0, Math.min(r1, point[i]));+        if (dragging) {+          max = (min += position) + size;+        } else {+          if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min));+          if (position < min) {+            max = min;+            min = position;+          } else {+            max = position;+          }+        }+        if (extent[0][i] !== min || extent[1][i] !== max) {+          extentDomain = null;+          extent[0][i] = min;+          extent[1][i] = max;+          return true;+        }+      }+      function brushend() {+        brushmove();+        g.style("pointer-events", "all").selectAll(".resize").style("display", brush.empty() ? "none" : null);+        d3.select("body").style("cursor", null);+        w.on("mousemove.brush", null).on("mouseup.brush", null).on("touchmove.brush", null).on("touchend.brush", null).on("keydown.brush", null).on("keyup.brush", null);+        event_({+          type: "brushend"+        });+        d3_eventCancel();+      }+      var target = this, eventTarget = d3.select(d3.event.target), event_ = event.of(target, arguments), g = d3.select(target), resizing = eventTarget.datum(), resizingX = !/^(n|s)$/.test(resizing) && x, resizingY = !/^(e|w)$/.test(resizing) && y, dragging = eventTarget.classed("extent"), center, origin = mouse(), offset;+      var w = d3.select(window).on("mousemove.brush", brushmove).on("mouseup.brush", brushend).on("touchmove.brush", brushmove).on("touchend.brush", brushend).on("keydown.brush", keydown).on("keyup.brush", keyup);+      if (dragging) {+        origin[0] = extent[0][0] - origin[0];+        origin[1] = extent[0][1] - origin[1];+      } else if (resizing) {+        var ex = +/w$/.test(resizing), ey = +/^n/.test(resizing);+        offset = [ extent[1 - ex][0] - origin[0], extent[1 - ey][1] - origin[1] ];+        origin[0] = extent[ex][0];+        origin[1] = extent[ey][1];+      } else if (d3.event.altKey) center = origin.slice();+      g.style("pointer-events", "none").selectAll(".resize").style("display", null);+      d3.select("body").style("cursor", eventTarget.style("cursor"));+      event_({+        type: "brushstart"+      });+      brushmove();+      d3_eventCancel();+    }+    var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"), x = null, y = null, resizes = d3_svg_brushResizes[0], extent = [ [ 0, 0 ], [ 0, 0 ] ], extentDomain;+    brush.x = function(z) {+      if (!arguments.length) return x;+      x = z;+      resizes = d3_svg_brushResizes[!x << 1 | !y];+      return brush;+    };+    brush.y = function(z) {+      if (!arguments.length) return y;+      y = z;+      resizes = d3_svg_brushResizes[!x << 1 | !y];+      return brush;+    };+    brush.extent = function(z) {+      var x0, x1, y0, y1, t;+      if (!arguments.length) {+        z = extentDomain || extent;+        if (x) {+          x0 = z[0][0], x1 = z[1][0];+          if (!extentDomain) {+            x0 = extent[0][0], x1 = extent[1][0];+            if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1);+            if (x1 < x0) t = x0, x0 = x1, x1 = t;+          }+        }+        if (y) {+          y0 = z[0][1], y1 = z[1][1];+          if (!extentDomain) {+            y0 = extent[0][1], y1 = extent[1][1];+            if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1);+            if (y1 < y0) t = y0, y0 = y1, y1 = t;+          }+        }+        return x && y ? [ [ x0, y0 ], [ x1, y1 ] ] : x ? [ x0, x1 ] : y && [ y0, y1 ];+      }+      extentDomain = [ [ 0, 0 ], [ 0, 0 ] ];+      if (x) {+        x0 = z[0], x1 = z[1];+        if (y) x0 = x0[0], x1 = x1[0];+        extentDomain[0][0] = x0, extentDomain[1][0] = x1;+        if (x.invert) x0 = x(x0), x1 = x(x1);+        if (x1 < x0) t = x0, x0 = x1, x1 = t;+        extent[0][0] = x0 | 0, extent[1][0] = x1 | 0;+      }+      if (y) {+        y0 = z[0], y1 = z[1];+        if (x) y0 = y0[1], y1 = y1[1];+        extentDomain[0][1] = y0, extentDomain[1][1] = y1;+        if (y.invert) y0 = y(y0), y1 = y(y1);+        if (y1 < y0) t = y0, y0 = y1, y1 = t;+        extent[0][1] = y0 | 0, extent[1][1] = y1 | 0;+      }+      return brush;+    };+    brush.clear = function() {+      extentDomain = null;+      extent[0][0] = extent[0][1] = extent[1][0] = extent[1][1] = 0;+      return brush;+    };+    brush.empty = function() {+      return x && extent[0][0] === extent[1][0] || y && extent[0][1] === extent[1][1];+    };+    return d3.rebind(brush, event, "on");+  };+  var d3_svg_brushCursor = {+    n: "ns-resize",+    e: "ew-resize",+    s: "ns-resize",+    w: "ew-resize",+    nw: "nwse-resize",+    ne: "nesw-resize",+    se: "nwse-resize",+    sw: "nesw-resize"+  };+  var d3_svg_brushResizes = [ [ "n", "e", "s", "w", "nw", "ne", "se", "sw" ], [ "e", "w" ], [ "n", "s" ], [] ];+  d3.behavior = {};+  d3.behavior.drag = function() {+    function drag() {+      this.on("mousedown.drag", mousedown).on("touchstart.drag", mousedown);+    }+    function mousedown() {+      function point() {+        var p = target.parentNode;+        return touchId ? d3.touches(p).filter(function(p) {+          return p.identifier === touchId;+        })[0] : d3.mouse(p);+      }+      function dragmove() {+        if (!target.parentNode) return dragend();+        var p = point(), dx = p[0] - origin_[0], dy = p[1] - origin_[1];+        moved |= dx | dy;+        origin_ = p;+        d3_eventCancel();+        event_({+          type: "drag",+          x: p[0] + offset[0],+          y: p[1] + offset[1],+          dx: dx,+          dy: dy+        });+      }+      function dragend() {+        event_({+          type: "dragend"+        });+        if (moved) {+          d3_eventCancel();+          if (d3.event.target === eventTarget) w.on("click.drag", click, true);+        }+        w.on(touchId ? "touchmove.drag-" + touchId : "mousemove.drag", null).on(touchId ? "touchend.drag-" + touchId : "mouseup.drag", null);+      }+      function click() {+        d3_eventCancel();+        w.on("click.drag", null);+      }+      var target = this, event_ = event.of(target, arguments), eventTarget = d3.event.target, touchId = d3.event.touches && d3.event.changedTouches[0].identifier, offset, origin_ = point(), moved = 0;+      var w = d3.select(window).on(touchId ? "touchmove.drag-" + touchId : "mousemove.drag", dragmove).on(touchId ? "touchend.drag-" + touchId : "mouseup.drag", dragend, true);+      if (origin) {+        offset = origin.apply(target, arguments);+        offset = [ offset.x - origin_[0], offset.y - origin_[1] ];+      } else {+        offset = [ 0, 0 ];+      }+      if (!touchId) d3_eventCancel();+      event_({+        type: "dragstart"+      });+    }+    var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"), origin = null;+    drag.origin = function(x) {+      if (!arguments.length) return origin;+      origin = x;+      return drag;+    };+    return d3.rebind(drag, event, "on");+  };+  d3.behavior.zoom = function() {+    function zoom() {+      this.on("mousedown.zoom", mousedown).on("mousewheel.zoom", mousewheel).on("mousemove.zoom", mousemove).on("DOMMouseScroll.zoom", mousewheel).on("dblclick.zoom", dblclick).on("touchstart.zoom", touchstart).on("touchmove.zoom", touchmove).on("touchend.zoom", touchstart);+    }+    function location(p) {+      return [ (p[0] - translate[0]) / scale, (p[1] - translate[1]) / scale ];+    }+    function point(l) {+      return [ l[0] * scale + translate[0], l[1] * scale + translate[1] ];+    }+    function scaleTo(s) {+      scale = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s));+    }+    function translateTo(p, l) {+      l = point(l);+      translate[0] += p[0] - l[0];+      translate[1] += p[1] - l[1];+    }+    function dispatch(event) {+      if (x1) x1.domain(x0.range().map(function(x) {+        return (x - translate[0]) / scale;+      }).map(x0.invert));+      if (y1) y1.domain(y0.range().map(function(y) {+        return (y - translate[1]) / scale;+      }).map(y0.invert));+      d3.event.preventDefault();+      event({+        type: "zoom",+        scale: scale,+        translate: translate+      });+    }+    function mousedown() {+      function mousemove() {+        moved = 1;+        translateTo(d3.mouse(target), l);+        dispatch(event_);+      }+      function mouseup() {+        if (moved) d3_eventCancel();+        w.on("mousemove.zoom", null).on("mouseup.zoom", null);+        if (moved && d3.event.target === eventTarget) w.on("click.zoom", click, true);+      }+      function click() {+        d3_eventCancel();+        w.on("click.zoom", null);+      }+      var target = this, event_ = event.of(target, arguments), eventTarget = d3.event.target, moved = 0, w = d3.select(window).on("mousemove.zoom", mousemove).on("mouseup.zoom", mouseup), l = location(d3.mouse(target));+      window.focus();+      d3_eventCancel();+    }+    function mousewheel() {+      if (!translate0) translate0 = location(d3.mouse(this));+      scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * scale);+      translateTo(d3.mouse(this), translate0);+      dispatch(event.of(this, arguments));+    }+    function mousemove() {+      translate0 = null;+    }+    function dblclick() {+      var p = d3.mouse(this), l = location(p);+      scaleTo(d3.event.shiftKey ? scale / 2 : scale * 2);+      translateTo(p, l);+      dispatch(event.of(this, arguments));+    }+    function touchstart() {+      var touches = d3.touches(this), now = Date.now();+      scale0 = scale;+      translate0 = {};+      touches.forEach(function(t) {+        translate0[t.identifier] = location(t);+      });+      d3_eventCancel();+      if (touches.length === 1) {+        if (now - touchtime < 500) {+          var p = touches[0], l = location(touches[0]);+          scaleTo(scale * 2);+          translateTo(p, l);+          dispatch(event.of(this, arguments));+        }+        touchtime = now;+      }+    }+    function touchmove() {+      var touches = d3.touches(this), p0 = touches[0], l0 = translate0[p0.identifier];+      if (p1 = touches[1]) {+        var p1, l1 = translate0[p1.identifier];+        p0 = [ (p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2 ];+        l0 = [ (l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2 ];+        scaleTo(d3.event.scale * scale0);+      }+      translateTo(p0, l0);+      touchtime = null;+      dispatch(event.of(this, arguments));+    }+    var translate = [ 0, 0 ], translate0, scale = 1, scale0, scaleExtent = d3_behavior_zoomInfinity, event = d3_eventDispatch(zoom, "zoom"), x0, x1, y0, y1, touchtime;+    zoom.translate = function(x) {+      if (!arguments.length) return translate;+      translate = x.map(Number);+      return zoom;+    };+    zoom.scale = function(x) {+      if (!arguments.length) return scale;+      scale = +x;+      return zoom;+    };+    zoom.scaleExtent = function(x) {+      if (!arguments.length) return scaleExtent;+      scaleExtent = x == null ? d3_behavior_zoomInfinity : x.map(Number);+      return zoom;+    };+    zoom.x = function(z) {+      if (!arguments.length) return x1;+      x1 = z;+      x0 = z.copy();+      return zoom;+    };+    zoom.y = function(z) {+      if (!arguments.length) return y1;+      y1 = z;+      y0 = z.copy();+      return zoom;+    };+    return d3.rebind(zoom, event, "on");+  };+  var d3_behavior_zoomDiv, d3_behavior_zoomInfinity = [ 0, Infinity ];+  d3.layout = {};+  d3.layout.bundle = function() {+    return function(links) {+      var paths = [], i = -1, n = links.length;+      while (++i < n) paths.push(d3_layout_bundlePath(links[i]));+      return paths;+    };+  };+  d3.layout.chord = function() {+    function relayout() {+      var subgroups = {}, groupSums = [], groupIndex = d3.range(n), subgroupIndex = [], k, x, x0, i, j;+      chords = [];+      groups = [];+      k = 0, i = -1;+      while (++i < n) {+        x = 0, j = -1;+        while (++j < n) {+          x += matrix[i][j];+        }+        groupSums.push(x);+        subgroupIndex.push(d3.range(n));+        k += x;+      }+      if (sortGroups) {+        groupIndex.sort(function(a, b) {+          return sortGroups(groupSums[a], groupSums[b]);+        });+      }+      if (sortSubgroups) {+        subgroupIndex.forEach(function(d, i) {+          d.sort(function(a, b) {+            return sortSubgroups(matrix[i][a], matrix[i][b]);+          });+        });+      }+      k = (2 * Math.PI - padding * n) / k;+      x = 0, i = -1;+      while (++i < n) {+        x0 = x, j = -1;+        while (++j < n) {+          var di = groupIndex[i], dj = subgroupIndex[di][j], v = matrix[di][dj], a0 = x, a1 = x += v * k;+          subgroups[di + "-" + dj] = {+            index: di,+            subindex: dj,+            startAngle: a0,+            endAngle: a1,+            value: v+          };+        }+        groups[di] = {+          index: di,+          startAngle: x0,+          endAngle: x,+          value: (x - x0) / k+        };+        x += padding;+      }+      i = -1;+      while (++i < n) {+        j = i - 1;+        while (++j < n) {+          var source = subgroups[i + "-" + j], target = subgroups[j + "-" + i];+          if (source.value || target.value) {+            chords.push(source.value < target.value ? {+              source: target,+              target: source+            } : {+              source: source,+              target: target+            });+          }+        }+      }+      if (sortChords) resort();+    }+    function resort() {+      chords.sort(function(a, b) {+        return sortChords((a.source.value + a.target.value) / 2, (b.source.value + b.target.value) / 2);+      });+    }+    var chord = {}, chords, groups, matrix, n, padding = 0, sortGroups, sortSubgroups, sortChords;+    chord.matrix = function(x) {+      if (!arguments.length) return matrix;+      n = (matrix = x) && matrix.length;+      chords = groups = null;+      return chord;+    };+    chord.padding = function(x) {+      if (!arguments.length) return padding;+      padding = x;+      chords = groups = null;+      return chord;+    };+    chord.sortGroups = function(x) {+      if (!arguments.length) return sortGroups;+      sortGroups = x;+      chords = groups = null;+      return chord;+    };+    chord.sortSubgroups = function(x) {+      if (!arguments.length) return sortSubgroups;+      sortSubgroups = x;+      chords = null;+      return chord;+    };+    chord.sortChords = function(x) {+      if (!arguments.length) return sortChords;+      sortChords = x;+      if (chords) resort();+      return chord;+    };+    chord.chords = function() {+      if (!chords) relayout();+      return chords;+    };+    chord.groups = function() {+      if (!groups) relayout();+      return groups;+    };+    return chord;+  };+  d3.layout.force = function() {+    function repulse(node) {+      return function(quad, x1, y1, x2, y2) {+        if (quad.point !== node) {+          var dx = quad.cx - node.x, dy = quad.cy - node.y, dn = 1 / Math.sqrt(dx * dx + dy * dy);+          if ((x2 - x1) * dn < theta) {+            var k = quad.charge * dn * dn;+            node.px -= dx * k;+            node.py -= dy * k;+            return true;+          }+          if (quad.point && isFinite(dn)) {+            var k = quad.pointCharge * dn * dn;+            node.px -= dx * k;+            node.py -= dy * k;+          }+        }+        return !quad.charge;+      };+    }+    function dragmove(d) {+      d.px = d3.event.x;+      d.py = d3.event.y;+      force.resume();+    }+    var force = {}, event = d3.dispatch("start", "tick", "end"), size = [ 1, 1 ], drag, alpha, friction = .9, linkDistance = d3_layout_forceLinkDistance, linkStrength = d3_layout_forceLinkStrength, charge = -30, gravity = .1, theta = .8, interval, nodes = [], links = [], distances, strengths, charges;+    force.tick = function() {+      if ((alpha *= .99) < .005) {+        event.end({+          type: "end",+          alpha: alpha = 0+        });+        return true;+      }+      var n = nodes.length, m = links.length, q, i, o, s, t, l, k, x, y;+      for (i = 0; i < m; ++i) {+        o = links[i];+        s = o.source;+        t = o.target;+        x = t.x - s.x;+        y = t.y - s.y;+        if (l = x * x + y * y) {+          l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l;+          x *= l;+          y *= l;+          t.x -= x * (k = s.weight / (t.weight + s.weight));+          t.y -= y * k;+          s.x += x * (k = 1 - k);+          s.y += y * k;+        }+      }+      if (k = alpha * gravity) {+        x = size[0] / 2;+        y = size[1] / 2;+        i = -1;+        if (k) while (++i < n) {+          o = nodes[i];+          o.x += (x - o.x) * k;+          o.y += (y - o.y) * k;+        }+      }+      if (charge) {+        d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges);+        i = -1;+        while (++i < n) {+          if (!(o = nodes[i]).fixed) {+            q.visit(repulse(o));+          }+        }+      }+      i = -1;+      while (++i < n) {+        o = nodes[i];+        if (o.fixed) {+          o.x = o.px;+          o.y = o.py;+        } else {+          o.x -= (o.px - (o.px = o.x)) * friction;+          o.y -= (o.py - (o.py = o.y)) * friction;+        }+      }+      event.tick({+        type: "tick",+        alpha: alpha+      });+    };+    force.nodes = function(x) {+      if (!arguments.length) return nodes;+      nodes = x;+      return force;+    };+    force.links = function(x) {+      if (!arguments.length) return links;+      links = x;+      return force;+    };+    force.size = function(x) {+      if (!arguments.length) return size;+      size = x;+      return force;+    };+    force.linkDistance = function(x) {+      if (!arguments.length) return linkDistance;+      linkDistance = d3_functor(x);+      return force;+    };+    force.distance = force.linkDistance;+    force.linkStrength = function(x) {+      if (!arguments.length) return linkStrength;+      linkStrength = d3_functor(x);+      return force;+    };+    force.friction = function(x) {+      if (!arguments.length) return friction;+      friction = x;+      return force;+    };+    force.charge = function(x) {+      if (!arguments.length) return charge;+      charge = typeof x === "function" ? x : +x;+      return force;+    };+    force.gravity = function(x) {+      if (!arguments.length) return gravity;+      gravity = x;+      return force;+    };+    force.theta = function(x) {+      if (!arguments.length) return theta;+      theta = x;+      return force;+    };+    force.alpha = function(x) {+      if (!arguments.length) return alpha;+      if (alpha) {+        if (x > 0) alpha = x; else alpha = 0;+      } else if (x > 0) {+        event.start({+          type: "start",+          alpha: alpha = x+        });+        d3.timer(force.tick);+      }+      return force;+    };+    force.start = function() {+      function position(dimension, size) {+        var neighbors = neighbor(i), j = -1, m = neighbors.length, x;+        while (++j < m) if (!isNaN(x = neighbors[j][dimension])) return x;+        return Math.random() * size;+      }+      function neighbor() {+        if (!neighbors) {+          neighbors = [];+          for (j = 0; j < n; ++j) {+            neighbors[j] = [];+          }+          for (j = 0; j < m; ++j) {+            var o = links[j];+            neighbors[o.source.index].push(o.target);+            neighbors[o.target.index].push(o.source);+          }+        }+        return neighbors[i];+      }+      var i, j, n = nodes.length, m = links.length, w = size[0], h = size[1], neighbors, o;+      for (i = 0; i < n; ++i) {+        (o = nodes[i]).index = i;+        o.weight = 0;+      }+      distances = [];+      strengths = [];+      for (i = 0; i < m; ++i) {+        o = links[i];+        if (typeof o.source == "number") o.source = nodes[o.source];+        if (typeof o.target == "number") o.target = nodes[o.target];+        distances[i] = linkDistance.call(this, o, i);+        strengths[i] = linkStrength.call(this, o, i);+        ++o.source.weight;+        ++o.target.weight;+      }+      for (i = 0; i < n; ++i) {+        o = nodes[i];+        if (isNaN(o.x)) o.x = position("x", w);+        if (isNaN(o.y)) o.y = position("y", h);+        if (isNaN(o.px)) o.px = o.x;+        if (isNaN(o.py)) o.py = o.y;+      }+      charges = [];+      if (typeof charge === "function") {+        for (i = 0; i < n; ++i) {+          charges[i] = +charge.call(this, nodes[i], i);+        }+      } else {+        for (i = 0; i < n; ++i) {+          charges[i] = charge;+        }+      }+      return force.resume();+    };+    force.resume = function() {+      return force.alpha(.1);+    };+    force.stop = function() {+      return force.alpha(0);+    };+    force.drag = function() {+      if (!drag) drag = d3.behavior.drag().origin(d3_identity).on("dragstart", d3_layout_forceDragstart).on("drag", dragmove).on("dragend", d3_layout_forceDragend);+      this.on("mouseover.force", d3_layout_forceMouseover).on("mouseout.force", d3_layout_forceMouseout).call(drag);+    };+    return d3.rebind(force, event, "on");+  };+  d3.layout.partition = function() {+    function position(node, x, dx, dy) {+      var children = node.children;+      node.x = x;+      node.y = node.depth * dy;+      node.dx = dx;+      node.dy = dy;+      if (children && (n = children.length)) {+        var i = -1, n, c, d;+        dx = node.value ? dx / node.value : 0;+        while (++i < n) {+          position(c = children[i], x, d = c.value * dx, dy);+          x += d;+        }+      }+    }+    function depth(node) {+      var children = node.children, d = 0;+      if (children && (n = children.length)) {+        var i = -1, n;+        while (++i < n) d = Math.max(d, depth(children[i]));+      }+      return 1 + d;+    }+    function partition(d, i) {+      var nodes = hierarchy.call(this, d, i);+      position(nodes[0], 0, size[0], size[1] / depth(nodes[0]));+      return nodes;+    }+    var hierarchy = d3.layout.hierarchy(), size = [ 1, 1 ];+    partition.size = function(x) {+      if (!arguments.length) return size;+      size = x;+      return partition;+    };+    return d3_layout_hierarchyRebind(partition, hierarchy);+  };+  d3.layout.pie = function() {+    function pie(data, i) {+      var values = data.map(function(d, i) {+        return +value.call(pie, d, i);+      });+      var a = +(typeof startAngle === "function" ? startAngle.apply(this, arguments) : startAngle);+      var k = ((typeof endAngle === "function" ? endAngle.apply(this, arguments) : endAngle) - startAngle) / d3.sum(values);+      var index = d3.range(data.length);+      if (sort != null) index.sort(sort === d3_layout_pieSortByValue ? function(i, j) {+        return values[j] - values[i];+      } : function(i, j) {+        return sort(data[i], data[j]);+      });+      var arcs = [];+      index.forEach(function(i) {+        var d;+        arcs[i] = {+          data: data[i],+          value: d = values[i],+          startAngle: a,+          endAngle: a += d * k+        };+      });+      return arcs;+    }+    var value = Number, sort = d3_layout_pieSortByValue, startAngle = 0, endAngle = 2 * Math.PI;+    pie.value = function(x) {+      if (!arguments.length) return value;+      value = x;+      return pie;+    };+    pie.sort = function(x) {+      if (!arguments.length) return sort;+      sort = x;+      return pie;+    };+    pie.startAngle = function(x) {+      if (!arguments.length) return startAngle;+      startAngle = x;+      return pie;+    };+    pie.endAngle = function(x) {+      if (!arguments.length) return endAngle;+      endAngle = x;+      return pie;+    };+    return pie;+  };+  var d3_layout_pieSortByValue = {};+  d3.layout.stack = function() {+    function stack(data, index) {+      var series = data.map(function(d, i) {+        return values.call(stack, d, i);+      });+      var points = series.map(function(d, i) {+        return d.map(function(v, i) {+          return [ x.call(stack, v, i), y.call(stack, v, i) ];+        });+      });+      var orders = order.call(stack, points, index);+      series = d3.permute(series, orders);+      points = d3.permute(points, orders);+      var offsets = offset.call(stack, points, index);+      var n = series.length, m = series[0].length, i, j, o;+      for (j = 0; j < m; ++j) {+        out.call(stack, series[0][j], o = offsets[j], points[0][j][1]);+        for (i = 1; i < n; ++i) {+          out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]);+        }+      }+      return data;+    }+    var values = d3_identity, order = d3_layout_stackOrderDefault, offset = d3_layout_stackOffsetZero, out = d3_layout_stackOut, x = d3_layout_stackX, y = d3_layout_stackY;+    stack.values = function(x) {+      if (!arguments.length) return values;+      values = x;+      return stack;+    };+    stack.order = function(x) {+      if (!arguments.length) return order;+      order = typeof x === "function" ? x : d3_layout_stackOrders.get(x) || d3_layout_stackOrderDefault;+      return stack;+    };+    stack.offset = function(x) {+      if (!arguments.length) return offset;+      offset = typeof x === "function" ? x : d3_layout_stackOffsets.get(x) || d3_layout_stackOffsetZero;+      return stack;+    };+    stack.x = function(z) {+      if (!arguments.length) return x;+      x = z;+      return stack;+    };+    stack.y = function(z) {+      if (!arguments.length) return y;+      y = z;+      return stack;+    };+    stack.out = function(z) {+      if (!arguments.length) return out;+      out = z;+      return stack;+    };+    return stack;+  };+  var d3_layout_stackOrders = d3.map({+    "inside-out": function(data) {+      var n = data.length, i, j, max = data.map(d3_layout_stackMaxIndex), sums = data.map(d3_layout_stackReduceSum), index = d3.range(n).sort(function(a, b) {+        return max[a] - max[b];+      }), top = 0, bottom = 0, tops = [], bottoms = [];+      for (i = 0; i < n; ++i) {+        j = index[i];+        if (top < bottom) {+          top += sums[j];+          tops.push(j);+        } else {+          bottom += sums[j];+          bottoms.push(j);+        }+      }+      return bottoms.reverse().concat(tops);+    },+    reverse: function(data) {+      return d3.range(data.length).reverse();+    },+    "default": d3_layout_stackOrderDefault+  });+  var d3_layout_stackOffsets = d3.map({+    silhouette: function(data) {+      var n = data.length, m = data[0].length, sums = [], max = 0, i, j, o, y0 = [];+      for (j = 0; j < m; ++j) {+        for (i = 0, o = 0; i < n; i++) o += data[i][j][1];+        if (o > max) max = o;+        sums.push(o);+      }+      for (j = 0; j < m; ++j) {+        y0[j] = (max - sums[j]) / 2;+      }+      return y0;+    },+    wiggle: function(data) {+      var n = data.length, x = data[0], m = x.length, max = 0, i, j, k, s1, s2, s3, dx, o, o0, y0 = [];+      y0[0] = o = o0 = 0;+      for (j = 1; j < m; ++j) {+        for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1];+        for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) {+          for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) {+            s3 += (data[k][j][1] - data[k][j - 1][1]) / dx;+          }+          s2 += s3 * data[i][j][1];+        }+        y0[j] = o -= s1 ? s2 / s1 * dx : 0;+        if (o < o0) o0 = o;+      }+      for (j = 0; j < m; ++j) y0[j] -= o0;+      return y0;+    },+    expand: function(data) {+      var n = data.length, m = data[0].length, k = 1 / n, i, j, o, y0 = [];+      for (j = 0; j < m; ++j) {+        for (i = 0, o = 0; i < n; i++) o += data[i][j][1];+        if (o) for (i = 0; i < n; i++) data[i][j][1] /= o; else for (i = 0; i < n; i++) data[i][j][1] = k;+      }+      for (j = 0; j < m; ++j) y0[j] = 0;+      return y0;+    },+    zero: d3_layout_stackOffsetZero+  });+  d3.layout.histogram = function() {+    function histogram(data, i) {+      var bins = [], values = data.map(valuer, this), range = ranger.call(this, values, i), thresholds = binner.call(this, range, values, i), bin, i = -1, n = values.length, m = thresholds.length - 1, k = frequency ? 1 : 1 / n, x;+      while (++i < m) {+        bin = bins[i] = [];+        bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]);+        bin.y = 0;+      }+      if (m > 0) {+        i = -1;+        while (++i < n) {+          x = values[i];+          if (x >= range[0] && x <= range[1]) {+            bin = bins[d3.bisect(thresholds, x, 1, m) - 1];+            bin.y += k;+            bin.push(data[i]);+          }+        }+      }+      return bins;+    }+    var frequency = true, valuer = Number, ranger = d3_layout_histogramRange, binner = d3_layout_histogramBinSturges;+    histogram.value = function(x) {+      if (!arguments.length) return valuer;+      valuer = x;+      return histogram;+    };+    histogram.range = function(x) {+      if (!arguments.length) return ranger;+      ranger = d3_functor(x);+      return histogram;+    };+    histogram.bins = function(x) {+      if (!arguments.length) return binner;+      binner = typeof x === "number" ? function(range) {+        return d3_layout_histogramBinFixed(range, x);+      } : d3_functor(x);+      return histogram;+    };+    histogram.frequency = function(x) {+      if (!arguments.length) return frequency;+      frequency = !!x;+      return histogram;+    };+    return histogram;+  };+  d3.layout.hierarchy = function() {+    function recurse(data, depth, nodes) {+      var childs = children.call(hierarchy, data, depth), node = d3_layout_hierarchyInline ? data : {+        data: data+      };+      node.depth = depth;+      nodes.push(node);+      if (childs && (n = childs.length)) {+        var i = -1, n, c = node.children = [], v = 0, j = depth + 1, d;+        while (++i < n) {+          d = recurse(childs[i], j, nodes);+          d.parent = node;+          c.push(d);+          v += d.value;+        }+        if (sort) c.sort(sort);+        if (value) node.value = v;+      } else if (value) {+        node.value = +value.call(hierarchy, data, depth) || 0;+      }+      return node;+    }+    function revalue(node, depth) {+      var children = node.children, v = 0;+      if (children && (n = children.length)) {+        var i = -1, n, j = depth + 1;+        while (++i < n) v += revalue(children[i], j);+      } else if (value) {+        v = +value.call(hierarchy, d3_layout_hierarchyInline ? node : node.data, depth) || 0;+      }+      if (value) node.value = v;+      return v;+    }+    function hierarchy(d) {+      var nodes = [];+      recurse(d, 0, nodes);+      return nodes;+    }+    var sort = d3_layout_hierarchySort, children = d3_layout_hierarchyChildren, value = d3_layout_hierarchyValue;+    hierarchy.sort = function(x) {+      if (!arguments.length) return sort;+      sort = x;+      return hierarchy;+    };+    hierarchy.children = function(x) {+      if (!arguments.length) return children;+      children = x;+      return hierarchy;+    };+    hierarchy.value = function(x) {+      if (!arguments.length) return value;+      value = x;+      return hierarchy;+    };+    hierarchy.revalue = function(root) {+      revalue(root, 0);+      return root;+    };+    return hierarchy;+  };+  var d3_layout_hierarchyInline = false;+  d3.layout.pack = function() {+    function pack(d, i) {+      var nodes = hierarchy.call(this, d, i), root = nodes[0];+      root.x = 0;+      root.y = 0;+      d3_layout_treeVisitAfter(root, function(d) {+        d.r = Math.sqrt(d.value);+      });+      d3_layout_treeVisitAfter(root, d3_layout_packSiblings);+      var w = size[0], h = size[1], k = Math.max(2 * root.r / w, 2 * root.r / h);+      if (padding > 0) {+        var dr = padding * k / 2;+        d3_layout_treeVisitAfter(root, function(d) {+          d.r += dr;+        });+        d3_layout_treeVisitAfter(root, d3_layout_packSiblings);+        d3_layout_treeVisitAfter(root, function(d) {+          d.r -= dr;+        });+        k = Math.max(2 * root.r / w, 2 * root.r / h);+      }+      d3_layout_packTransform(root, w / 2, h / 2, 1 / k);+      return nodes;+    }+    var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), padding = 0, size = [ 1, 1 ];+    pack.size = function(x) {+      if (!arguments.length) return size;+      size = x;+      return pack;+    };+    pack.padding = function(_) {+      if (!arguments.length) return padding;+      padding = +_;+      return pack;+    };+    return d3_layout_hierarchyRebind(pack, hierarchy);+  };+  d3.layout.cluster = function() {+    function cluster(d, i) {+      var nodes = hierarchy.call(this, d, i), root = nodes[0], previousNode, x = 0, kx, ky;+      d3_layout_treeVisitAfter(root, function(node) {+        var children = node.children;+        if (children && children.length) {+          node.x = d3_layout_clusterX(children);+          node.y = d3_layout_clusterY(children);+        } else {+          node.x = previousNode ? x += separation(node, previousNode) : 0;+          node.y = 0;+          previousNode = node;+        }+      });+      var left = d3_layout_clusterLeft(root), right = d3_layout_clusterRight(root), x0 = left.x - separation(left, right) / 2, x1 = right.x + separation(right, left) / 2;+      d3_layout_treeVisitAfter(root, function(node) {+        node.x = (node.x - x0) / (x1 - x0) * size[0];+        node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1];+      });+      return nodes;+    }+    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ];+    cluster.separation = function(x) {+      if (!arguments.length) return separation;+      separation = x;+      return cluster;+    };+    cluster.size = function(x) {+      if (!arguments.length) return size;+      size = x;+      return cluster;+    };+    return d3_layout_hierarchyRebind(cluster, hierarchy);+  };+  d3.layout.tree = function() {+    function tree(d, i) {+      function firstWalk(node, previousSibling) {+        var children = node.children, layout = node._tree;+        if (children && (n = children.length)) {+          var n, firstChild = children[0], previousChild, ancestor = firstChild, child, i = -1;+          while (++i < n) {+            child = children[i];+            firstWalk(child, previousChild);+            ancestor = apportion(child, previousChild, ancestor);+            previousChild = child;+          }+          d3_layout_treeShift(node);+          var midpoint = .5 * (firstChild._tree.prelim + child._tree.prelim);+          if (previousSibling) {+            layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling);+            layout.mod = layout.prelim - midpoint;+          } else {+            layout.prelim = midpoint;+          }+        } else {+          if (previousSibling) {+            layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling);+          }+        }+      }+      function secondWalk(node, x) {+        node.x = node._tree.prelim + x;+        var children = node.children;+        if (children && (n = children.length)) {+          var i = -1, n;+          x += node._tree.mod;+          while (++i < n) {+            secondWalk(children[i], x);+          }+        }+      }+      function apportion(node, previousSibling, ancestor) {+        if (previousSibling) {+          var vip = node, vop = node, vim = previousSibling, vom = node.parent.children[0], sip = vip._tree.mod, sop = vop._tree.mod, sim = vim._tree.mod, som = vom._tree.mod, shift;+          while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) {+            vom = d3_layout_treeLeft(vom);+            vop = d3_layout_treeRight(vop);+            vop._tree.ancestor = node;+            shift = vim._tree.prelim + sim - vip._tree.prelim - sip + separation(vim, vip);+            if (shift > 0) {+              d3_layout_treeMove(d3_layout_treeAncestor(vim, node, ancestor), node, shift);+              sip += shift;+              sop += shift;+            }+            sim += vim._tree.mod;+            sip += vip._tree.mod;+            som += vom._tree.mod;+            sop += vop._tree.mod;+          }+          if (vim && !d3_layout_treeRight(vop)) {+            vop._tree.thread = vim;+            vop._tree.mod += sim - sop;+          }+          if (vip && !d3_layout_treeLeft(vom)) {+            vom._tree.thread = vip;+            vom._tree.mod += sip - som;+            ancestor = node;+          }+        }+        return ancestor;+      }+      var nodes = hierarchy.call(this, d, i), root = nodes[0];+      d3_layout_treeVisitAfter(root, function(node, previousSibling) {+        node._tree = {+          ancestor: node,+          prelim: 0,+          mod: 0,+          change: 0,+          shift: 0,+          number: previousSibling ? previousSibling._tree.number + 1 : 0+        };+      });+      firstWalk(root);+      secondWalk(root, -root._tree.prelim);+      var left = d3_layout_treeSearch(root, d3_layout_treeLeftmost), right = d3_layout_treeSearch(root, d3_layout_treeRightmost), deep = d3_layout_treeSearch(root, d3_layout_treeDeepest), x0 = left.x - separation(left, right) / 2, x1 = right.x + separation(right, left) / 2, y1 = deep.depth || 1;+      d3_layout_treeVisitAfter(root, function(node) {+        node.x = (node.x - x0) / (x1 - x0) * size[0];+        node.y = node.depth / y1 * size[1];+        delete node._tree;+      });+      return nodes;+    }+    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ];+    tree.separation = function(x) {+      if (!arguments.length) return separation;+      separation = x;+      return tree;+    };+    tree.size = function(x) {+      if (!arguments.length) return size;+      size = x;+      return tree;+    };+    return d3_layout_hierarchyRebind(tree, hierarchy);+  };+  d3.layout.treemap = function() {+    function scale(children, k) {+      var i = -1, n = children.length, child, area;+      while (++i < n) {+        area = (child = children[i]).value * (k < 0 ? 0 : k);+        child.area = isNaN(area) || area <= 0 ? 0 : area;+      }+    }+    function squarify(node) {+      var children = node.children;+      if (children && children.length) {+        var rect = pad(node), row = [], remaining = children.slice(), child, best = Infinity, score, u = Math.min(rect.dx, rect.dy), n;+        scale(remaining, rect.dx * rect.dy / node.value);+        row.area = 0;+        while ((n = remaining.length) > 0) {+          row.push(child = remaining[n - 1]);+          row.area += child.area;+          if ((score = worst(row, u)) <= best) {+            remaining.pop();+            best = score;+          } else {+            row.area -= row.pop().area;+            position(row, u, rect, false);+            u = Math.min(rect.dx, rect.dy);+            row.length = row.area = 0;+            best = Infinity;+          }+        }+        if (row.length) {+          position(row, u, rect, true);+          row.length = row.area = 0;+        }+        children.forEach(squarify);+      }+    }+    function stickify(node) {+      var children = node.children;+      if (children && children.length) {+        var rect = pad(node), remaining = children.slice(), child, row = [];+        scale(remaining, rect.dx * rect.dy / node.value);+        row.area = 0;+        while (child = remaining.pop()) {+          row.push(child);+          row.area += child.area;+          if (child.z != null) {+            position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length);+            row.length = row.area = 0;+          }+        }+        children.forEach(stickify);+      }+    }+    function worst(row, u) {+      var s = row.area, r, rmax = 0, rmin = Infinity, i = -1, n = row.length;+      while (++i < n) {+        if (!(r = row[i].area)) continue;+        if (r < rmin) rmin = r;+        if (r > rmax) rmax = r;+      }+      s *= s;+      u *= u;+      return s ? Math.max(u * rmax * ratio / s, s / (u * rmin * ratio)) : Infinity;+    }+    function position(row, u, rect, flush) {+      var i = -1, n = row.length, x = rect.x, y = rect.y, v = u ? round(row.area / u) : 0, o;+      if (u == rect.dx) {+        if (flush || v > rect.dy) v = rect.dy;+        while (++i < n) {+          o = row[i];+          o.x = x;+          o.y = y;+          o.dy = v;+          x += o.dx = Math.min(rect.x + rect.dx - x, v ? round(o.area / v) : 0);+        }+        o.z = true;+        o.dx += rect.x + rect.dx - x;+        rect.y += v;+        rect.dy -= v;+      } else {+        if (flush || v > rect.dx) v = rect.dx;+        while (++i < n) {+          o = row[i];+          o.x = x;+          o.y = y;+          o.dx = v;+          y += o.dy = Math.min(rect.y + rect.dy - y, v ? round(o.area / v) : 0);+        }+        o.z = false;+        o.dy += rect.y + rect.dy - y;+        rect.x += v;+        rect.dx -= v;+      }+    }+    function treemap(d) {+      var nodes = stickies || hierarchy(d), root = nodes[0];+      root.x = 0;+      root.y = 0;+      root.dx = size[0];+      root.dy = size[1];+      if (stickies) hierarchy.revalue(root);+      scale([ root ], root.dx * root.dy / root.value);+      (stickies ? stickify : squarify)(root);+      if (sticky) stickies = nodes;+      return nodes;+    }+    var hierarchy = d3.layout.hierarchy(), round = Math.round, size = [ 1, 1 ], padding = null, pad = d3_layout_treemapPadNull, sticky = false, stickies, ratio = .5 * (1 + Math.sqrt(5));+    treemap.size = function(x) {+      if (!arguments.length) return size;+      size = x;+      return treemap;+    };+    treemap.padding = function(x) {+      function padFunction(node) {+        var p = x.call(treemap, node, node.depth);+        return p == null ? d3_layout_treemapPadNull(node) : d3_layout_treemapPad(node, typeof p === "number" ? [ p, p, p, p ] : p);+      }+      function padConstant(node) {+        return d3_layout_treemapPad(node, x);+      }+      if (!arguments.length) return padding;+      var type;+      pad = (padding = x) == null ? d3_layout_treemapPadNull : (type = typeof x) === "function" ? padFunction : type === "number" ? (x = [ x, x, x, x ], padConstant) : padConstant;+      return treemap;+    };+    treemap.round = function(x) {+      if (!arguments.length) return round != Number;+      round = x ? Math.round : Number;+      return treemap;+    };+    treemap.sticky = function(x) {+      if (!arguments.length) return sticky;+      sticky = x;+      stickies = null;+      return treemap;+    };+    treemap.ratio = function(x) {+      if (!arguments.length) return ratio;+      ratio = x;+      return treemap;+    };+    return d3_layout_hierarchyRebind(treemap, hierarchy);+  };+  d3.csv = d3_dsv(",", "text/csv");+  d3.tsv = d3_dsv("	", "text/tab-separated-values");+  d3.geo = {};+  var d3_geo_radians = Math.PI / 180;+  d3.geo.azimuthal = function() {+    function azimuthal(coordinates) {+      var x1 = coordinates[0] * d3_geo_radians - x0, y1 = coordinates[1] * d3_geo_radians, cx1 = Math.cos(x1), sx1 = Math.sin(x1), cy1 = Math.cos(y1), sy1 = Math.sin(y1), cc = mode !== "orthographic" ? sy0 * sy1 + cy0 * cy1 * cx1 : null, c, k = mode === "stereographic" ? 1 / (1 + cc) : mode === "gnomonic" ? 1 / cc : mode === "equidistant" ? (c = Math.acos(cc), c ? c / Math.sin(c) : 0) : mode === "equalarea" ? Math.sqrt(2 / (1 + cc)) : 1, x = k * cy1 * sx1, y = k * (sy0 * cy1 * cx1 - cy0 * sy1);+      return [ scale * x + translate[0], scale * y + translate[1] ];+    }+    var mode = "orthographic", origin, scale = 200, translate = [ 480, 250 ], x0, y0, cy0, sy0;+    azimuthal.invert = function(coordinates) {+      var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale, p = Math.sqrt(x * x + y * y), c = mode === "stereographic" ? 2 * Math.atan(p) : mode === "gnomonic" ? Math.atan(p) : mode === "equidistant" ? p : mode === "equalarea" ? 2 * Math.asin(.5 * p) : Math.asin(p), sc = Math.sin(c), cc = Math.cos(c);+      return [ (x0 + Math.atan2(x * sc, p * cy0 * cc + y * sy0 * sc)) / d3_geo_radians, Math.asin(cc * sy0 - (p ? y * sc * cy0 / p : 0)) / d3_geo_radians ];+    };+    azimuthal.mode = function(x) {+      if (!arguments.length) return mode;+      mode = x + "";+      return azimuthal;+    };+    azimuthal.origin = function(x) {+      if (!arguments.length) return origin;+      origin = x;+      x0 = origin[0] * d3_geo_radians;+      y0 = origin[1] * d3_geo_radians;+      cy0 = Math.cos(y0);+      sy0 = Math.sin(y0);+      return azimuthal;+    };+    azimuthal.scale = function(x) {+      if (!arguments.length) return scale;+      scale = +x;+      return azimuthal;+    };+    azimuthal.translate = function(x) {+      if (!arguments.length) return translate;+      translate = [ +x[0], +x[1] ];+      return azimuthal;+    };+    return azimuthal.origin([ 0, 0 ]);+  };+  d3.geo.albers = function() {+    function albers(coordinates) {+      var t = n * (d3_geo_radians * coordinates[0] - lng0), p = Math.sqrt(C - 2 * n * Math.sin(d3_geo_radians * coordinates[1])) / n;+      return [ scale * p * Math.sin(t) + translate[0], scale * (p * Math.cos(t) - p0) + translate[1] ];+    }+    function reload() {+      var phi1 = d3_geo_radians * parallels[0], phi2 = d3_geo_radians * parallels[1], lat0 = d3_geo_radians * origin[1], s = Math.sin(phi1), c = Math.cos(phi1);+      lng0 = d3_geo_radians * origin[0];+      n = .5 * (s + Math.sin(phi2));+      C = c * c + 2 * n * s;+      p0 = Math.sqrt(C - 2 * n * Math.sin(lat0)) / n;+      return albers;+    }+    var origin = [ -98, 38 ], parallels = [ 29.5, 45.5 ], scale = 1e3, translate = [ 480, 250 ], lng0, n, C, p0;+    albers.invert = function(coordinates) {+      var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale, p0y = p0 + y, t = Math.atan2(x, p0y), p = Math.sqrt(x * x + p0y * p0y);+      return [ (lng0 + t / n) / d3_geo_radians, Math.asin((C - p * p * n * n) / (2 * n)) / d3_geo_radians ];+    };+    albers.origin = function(x) {+      if (!arguments.length) return origin;+      origin = [ +x[0], +x[1] ];+      return reload();+    };+    albers.parallels = function(x) {+      if (!arguments.length) return parallels;+      parallels = [ +x[0], +x[1] ];+      return reload();+    };+    albers.scale = function(x) {+      if (!arguments.length) return scale;+      scale = +x;+      return albers;+    };+    albers.translate = function(x) {+      if (!arguments.length) return translate;+      translate = [ +x[0], +x[1] ];+      return albers;+    };+    return reload();+  };+  d3.geo.albersUsa = function() {+    function albersUsa(coordinates) {+      var lon = coordinates[0], lat = coordinates[1];+      return (lat > 50 ? alaska : lon < -140 ? hawaii : lat < 21 ? puertoRico : lower48)(coordinates);+    }+    var lower48 = d3.geo.albers();+    var alaska = d3.geo.albers().origin([ -160, 60 ]).parallels([ 55, 65 ]);+    var hawaii = d3.geo.albers().origin([ -160, 20 ]).parallels([ 8, 18 ]);+    var puertoRico = d3.geo.albers().origin([ -60, 10 ]).parallels([ 8, 18 ]);+    albersUsa.scale = function(x) {+      if (!arguments.length) return lower48.scale();+      lower48.scale(x);+      alaska.scale(x * .6);+      hawaii.scale(x);+      puertoRico.scale(x * 1.5);+      return albersUsa.translate(lower48.translate());+    };+    albersUsa.translate = function(x) {+      if (!arguments.length) return lower48.translate();+      var dz = lower48.scale() / 1e3, dx = x[0], dy = x[1];+      lower48.translate(x);+      alaska.translate([ dx - 400 * dz, dy + 170 * dz ]);+      hawaii.translate([ dx - 190 * dz, dy + 200 * dz ]);+      puertoRico.translate([ dx + 580 * dz, dy + 430 * dz ]);+      return albersUsa;+    };+    return albersUsa.scale(lower48.scale());+  };+  d3.geo.bonne = function() {+    function bonne(coordinates) {+      var x = coordinates[0] * d3_geo_radians - x0, y = coordinates[1] * d3_geo_radians - y0;+      if (y1) {+        var p = c1 + y1 - y, E = x * Math.cos(y) / p;+        x = p * Math.sin(E);+        y = p * Math.cos(E) - c1;+      } else {+        x *= Math.cos(y);+        y *= -1;+      }+      return [ scale * x + translate[0], scale * y + translate[1] ];+    }+    var scale = 200, translate = [ 480, 250 ], x0, y0, y1, c1;+    bonne.invert = function(coordinates) {+      var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale;+      if (y1) {+        var c = c1 + y, p = Math.sqrt(x * x + c * c);+        y = c1 + y1 - p;+        x = x0 + p * Math.atan2(x, c) / Math.cos(y);+      } else {+        y *= -1;+        x /= Math.cos(y);+      }+      return [ x / d3_geo_radians, y / d3_geo_radians ];+    };+    bonne.parallel = function(x) {+      if (!arguments.length) return y1 / d3_geo_radians;+      c1 = 1 / Math.tan(y1 = x * d3_geo_radians);+      return bonne;+    };+    bonne.origin = function(x) {+      if (!arguments.length) return [ x0 / d3_geo_radians, y0 / d3_geo_radians ];+      x0 = x[0] * d3_geo_radians;+      y0 = x[1] * d3_geo_radians;+      return bonne;+    };+    bonne.scale = function(x) {+      if (!arguments.length) return scale;+      scale = +x;+      return bonne;+    };+    bonne.translate = function(x) {+      if (!arguments.length) return translate;+      translate = [ +x[0], +x[1] ];+      return bonne;+    };+    return bonne.origin([ 0, 0 ]).parallel(45);+  };+  d3.geo.equirectangular = function() {+    function equirectangular(coordinates) {+      var x = coordinates[0] / 360, y = -coordinates[1] / 360;+      return [ scale * x + translate[0], scale * y + translate[1] ];+    }+    var scale = 500, translate = [ 480, 250 ];+    equirectangular.invert = function(coordinates) {+      var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale;+      return [ 360 * x, -360 * y ];+    };+    equirectangular.scale = function(x) {+      if (!arguments.length) return scale;+      scale = +x;+      return equirectangular;+    };+    equirectangular.translate = function(x) {+      if (!arguments.length) return translate;+      translate = [ +x[0], +x[1] ];+      return equirectangular;+    };+    return equirectangular;+  };+  d3.geo.mercator = function() {+    function mercator(coordinates) {+      var x = coordinates[0] / 360, y = -(Math.log(Math.tan(Math.PI / 4 + coordinates[1] * d3_geo_radians / 2)) / d3_geo_radians) / 360;+      return [ scale * x + translate[0], scale * Math.max(-.5, Math.min(.5, y)) + translate[1] ];+    }+    var scale = 500, translate = [ 480, 250 ];+    mercator.invert = function(coordinates) {+      var x = (coordinates[0] - translate[0]) / scale, y = (coordinates[1] - translate[1]) / scale;+      return [ 360 * x, 2 * Math.atan(Math.exp(-360 * y * d3_geo_radians)) / d3_geo_radians - 90 ];+    };+    mercator.scale = function(x) {+      if (!arguments.length) return scale;+      scale = +x;+      return mercator;+    };+    mercator.translate = function(x) {+      if (!arguments.length) return translate;+      translate = [ +x[0], +x[1] ];+      return mercator;+    };+    return mercator;+  };+  d3.geo.path = function() {+    function path(d, i) {+      if (typeof pointRadius === "function") pointCircle = d3_path_circle(pointRadius.apply(this, arguments));+      pathType(d);+      var result = buffer.length ? buffer.join("") : null;+      buffer = [];+      return result;+    }+    function project(coordinates) {+      return projection(coordinates).join(",");+    }+    function polygonArea(coordinates) {+      var sum = area(coordinates[0]), i = 0, n = coordinates.length;+      while (++i < n) sum -= area(coordinates[i]);+      return sum;+    }+    function polygonCentroid(coordinates) {+      var polygon = d3.geom.polygon(coordinates[0].map(projection)), area = polygon.area(), centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1), x = centroid[0], y = centroid[1], z = area, i = 0, n = coordinates.length;+      while (++i < n) {+        polygon = d3.geom.polygon(coordinates[i].map(projection));+        area = polygon.area();+        centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1);+        x -= centroid[0];+        y -= centroid[1];+        z -= area;+      }+      return [ x, y, 6 * z ];+    }+    function area(coordinates) {+      return Math.abs(d3.geom.polygon(coordinates.map(projection)).area());+    }+    var pointRadius = 4.5, pointCircle = d3_path_circle(pointRadius), projection = d3.geo.albersUsa(), buffer = [];+    var pathType = d3_geo_type({+      FeatureCollection: function(o) {+        var features = o.features, i = -1, n = features.length;+        while (++i < n) buffer.push(pathType(features[i].geometry));+      },+      Feature: function(o) {+        pathType(o.geometry);+      },+      Point: function(o) {+        buffer.push("M", project(o.coordinates), pointCircle);+      },+      MultiPoint: function(o) {+        var coordinates = o.coordinates, i = -1, n = coordinates.length;+        while (++i < n) buffer.push("M", project(coordinates[i]), pointCircle);+      },+      LineString: function(o) {+        var coordinates = o.coordinates, i = -1, n = coordinates.length;+        buffer.push("M");+        while (++i < n) buffer.push(project(coordinates[i]), "L");+        buffer.pop();+      },+      MultiLineString: function(o) {+        var coordinates = o.coordinates, i = -1, n = coordinates.length, subcoordinates, j, m;+        while (++i < n) {+          subcoordinates = coordinates[i];+          j = -1;+          m = subcoordinates.length;+          buffer.push("M");+          while (++j < m) buffer.push(project(subcoordinates[j]), "L");+          buffer.pop();+        }+      },+      Polygon: function(o) {+        var coordinates = o.coordinates, i = -1, n = coordinates.length, subcoordinates, j, m;+        while (++i < n) {+          subcoordinates = coordinates[i];+          j = -1;+          if ((m = subcoordinates.length - 1) > 0) {+            buffer.push("M");+            while (++j < m) buffer.push(project(subcoordinates[j]), "L");+            buffer[buffer.length - 1] = "Z";+          }+        }+      },+      MultiPolygon: function(o) {+        var coordinates = o.coordinates, i = -1, n = coordinates.length, subcoordinates, j, m, subsubcoordinates, k, p;+        while (++i < n) {+          subcoordinates = coordinates[i];+          j = -1;+          m = subcoordinates.length;+          while (++j < m) {+            subsubcoordinates = subcoordinates[j];+            k = -1;+            if ((p = subsubcoordinates.length - 1) > 0) {+              buffer.push("M");+              while (++k < p) buffer.push(project(subsubcoordinates[k]), "L");+              buffer[buffer.length - 1] = "Z";+            }+          }+        }+      },+      GeometryCollection: function(o) {+        var geometries = o.geometries, i = -1, n = geometries.length;+        while (++i < n) buffer.push(pathType(geometries[i]));+      }+    });+    var areaType = path.area = d3_geo_type({+      FeatureCollection: function(o) {+        var area = 0, features = o.features, i = -1, n = features.length;+        while (++i < n) area += areaType(features[i]);+        return area;+      },+      Feature: function(o) {+        return areaType(o.geometry);+      },+      Polygon: function(o) {+        return polygonArea(o.coordinates);+      },+      MultiPolygon: function(o) {+        var sum = 0, coordinates = o.coordinates, i = -1, n = coordinates.length;+        while (++i < n) sum += polygonArea(coordinates[i]);+        return sum;+      },+      GeometryCollection: function(o) {+        var sum = 0, geometries = o.geometries, i = -1, n = geometries.length;+        while (++i < n) sum += areaType(geometries[i]);+        return sum;+      }+    }, 0);+    var centroidType = path.centroid = d3_geo_type({+      Feature: function(o) {+        return centroidType(o.geometry);+      },+      Polygon: function(o) {+        var centroid = polygonCentroid(o.coordinates);+        return [ centroid[0] / centroid[2], centroid[1] / centroid[2] ];+      },+      MultiPolygon: function(o) {+        var area = 0, coordinates = o.coordinates, centroid, x = 0, y = 0, z = 0, i = -1, n = coordinates.length;+        while (++i < n) {+          centroid = polygonCentroid(coordinates[i]);+          x += centroid[0];+          y += centroid[1];+          z += centroid[2];+        }+        return [ x / z, y / z ];+      }+    });+    path.projection = function(x) {+      projection = x;+      return path;+    };+    path.pointRadius = function(x) {+      if (typeof x === "function") pointRadius = x; else {+        pointRadius = +x;+        pointCircle = d3_path_circle(pointRadius);+      }+      return path;+    };+    return path;+  };+  d3.geo.bounds = function(feature) {+    var left = Infinity, bottom = Infinity, right = -Infinity, top = -Infinity;+    d3_geo_bounds(feature, function(x, y) {+      if (x < left) left = x;+      if (x > right) right = x;+      if (y < bottom) bottom = y;+      if (y > top) top = y;+    });+    return [ [ left, bottom ], [ right, top ] ];+  };+  var d3_geo_boundsTypes = {+    Feature: d3_geo_boundsFeature,+    FeatureCollection: d3_geo_boundsFeatureCollection,+    GeometryCollection: d3_geo_boundsGeometryCollection,+    LineString: d3_geo_boundsLineString,+    MultiLineString: d3_geo_boundsMultiLineString,+    MultiPoint: d3_geo_boundsLineString,+    MultiPolygon: d3_geo_boundsMultiPolygon,+    Point: d3_geo_boundsPoint,+    Polygon: d3_geo_boundsPolygon+  };+  d3.geo.circle = function() {+    function circle() {}+    function visible(point) {+      return arc.distance(point) < radians;+    }+    function clip(coordinates) {+      var i = -1, n = coordinates.length, clipped = [], p0, p1, p2, d0, d1;+      while (++i < n) {+        d1 = arc.distance(p2 = coordinates[i]);+        if (d1 < radians) {+          if (p1) clipped.push(d3_geo_greatArcInterpolate(p1, p2)((d0 - radians) / (d0 - d1)));+          clipped.push(p2);+          p0 = p1 = null;+        } else {+          p1 = p2;+          if (!p0 && clipped.length) {+            clipped.push(d3_geo_greatArcInterpolate(clipped[clipped.length - 1], p1)((radians - d0) / (d1 - d0)));+            p0 = p1;+          }+        }+        d0 = d1;+      }+      p0 = coordinates[0];+      p1 = clipped[0];+      if (p1 && p2[0] === p0[0] && p2[1] === p0[1] && !(p2[0] === p1[0] && p2[1] === p1[1])) {+        clipped.push(p1);+      }+      return resample(clipped);+    }+    function resample(coordinates) {+      var i = 0, n = coordinates.length, j, m, resampled = n ? [ coordinates[0] ] : coordinates, resamples, origin = arc.source();+      while (++i < n) {+        resamples = arc.source(coordinates[i - 1])(coordinates[i]).coordinates;+        for (j = 0, m = resamples.length; ++j < m; ) resampled.push(resamples[j]);+      }+      arc.source(origin);+      return resampled;+    }+    var origin = [ 0, 0 ], degrees = 90 - .01, radians = degrees * d3_geo_radians, arc = d3.geo.greatArc().source(origin).target(d3_identity);+    circle.clip = function(d) {+      if (typeof origin === "function") arc.source(origin.apply(this, arguments));+      return clipType(d) || null;+    };+    var clipType = d3_geo_type({+      FeatureCollection: function(o) {+        var features = o.features.map(clipType).filter(d3_identity);+        return features && (o = Object.create(o), o.features = features, o);+      },+      Feature: function(o) {+        var geometry = clipType(o.geometry);+        return geometry && (o = Object.create(o), o.geometry = geometry, o);+      },+      Point: function(o) {+        return visible(o.coordinates) && o;+      },+      MultiPoint: function(o) {+        var coordinates = o.coordinates.filter(visible);+        return coordinates.length && {+          type: o.type,+          coordinates: coordinates+        };+      },+      LineString: function(o) {+        var coordinates = clip(o.coordinates);+        return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);+      },+      MultiLineString: function(o) {+        var coordinates = o.coordinates.map(clip).filter(function(d) {+          return d.length;+        });+        return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);+      },+      Polygon: function(o) {+        var coordinates = o.coordinates.map(clip);+        return coordinates[0].length && (o = Object.create(o), o.coordinates = coordinates, o);+      },+      MultiPolygon: function(o) {+        var coordinates = o.coordinates.map(function(d) {+          return d.map(clip);+        }).filter(function(d) {+          return d[0].length;+        });+        return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);+      },+      GeometryCollection: function(o) {+        var geometries = o.geometries.map(clipType).filter(d3_identity);+        return geometries.length && (o = Object.create(o), o.geometries = geometries, o);+      }+    });+    circle.origin = function(x) {+      if (!arguments.length) return origin;+      origin = x;+      if (typeof origin !== "function") arc.source(origin);+      return circle;+    };+    circle.angle = function(x) {+      if (!arguments.length) return degrees;+      radians = (degrees = +x) * d3_geo_radians;+      return circle;+    };+    return d3.rebind(circle, arc, "precision");+  };+  d3.geo.greatArc = function() {+    function greatArc() {+      var d = greatArc.distance.apply(this, arguments), t = 0, dt = precision / d, coordinates = [ p0 ];+      while ((t += dt) < 1) coordinates.push(interpolate(t));+      coordinates.push(p1);+      return {+        type: "LineString",+        coordinates: coordinates+      };+    }+    var source = d3_geo_greatArcSource, p0, target = d3_geo_greatArcTarget, p1, precision = 6 * d3_geo_radians, interpolate = d3_geo_greatArcInterpolator();+    greatArc.distance = function() {+      if (typeof source === "function") interpolate.source(p0 = source.apply(this, arguments));+      if (typeof target === "function") interpolate.target(p1 = target.apply(this, arguments));+      return interpolate.distance();+    };+    greatArc.source = function(_) {+      if (!arguments.length) return source;+      source = _;+      if (typeof source !== "function") interpolate.source(p0 = source);+      return greatArc;+    };+    greatArc.target = function(_) {+      if (!arguments.length) return target;+      target = _;+      if (typeof target !== "function") interpolate.target(p1 = target);+      return greatArc;+    };+    greatArc.precision = function(_) {+      if (!arguments.length) return precision / d3_geo_radians;+      precision = _ * d3_geo_radians;+      return greatArc;+    };+    return greatArc;+  };+  d3.geo.greatCircle = d3.geo.circle;+  d3.geom = {};+  d3.geom.contour = function(grid, start) {+    var s = start || d3_geom_contourStart(grid), c = [], x = s[0], y = s[1], dx = 0, dy = 0, pdx = NaN, pdy = NaN, i = 0;+    do {+      i = 0;+      if (grid(x - 1, y - 1)) i += 1;+      if (grid(x, y - 1)) i += 2;+      if (grid(x - 1, y)) i += 4;+      if (grid(x, y)) i += 8;+      if (i === 6) {+        dx = pdy === -1 ? -1 : 1;+        dy = 0;+      } else if (i === 9) {+        dx = 0;+        dy = pdx === 1 ? -1 : 1;+      } else {+        dx = d3_geom_contourDx[i];+        dy = d3_geom_contourDy[i];+      }+      if (dx != pdx && dy != pdy) {+        c.push([ x, y ]);+        pdx = dx;+        pdy = dy;+      }+      x += dx;+      y += dy;+    } while (s[0] != x || s[1] != y);+    return c;+  };+  var d3_geom_contourDx = [ 1, 0, 1, 1, -1, 0, -1, 1, 0, 0, 0, 0, -1, 0, -1, NaN ], d3_geom_contourDy = [ 0, -1, 0, 0, 0, -1, 0, 0, 1, -1, 1, 1, 0, -1, 0, NaN ];+  d3.geom.hull = function(vertices) {+    if (vertices.length < 3) return [];+    var len = vertices.length, plen = len - 1, points = [], stack = [], i, j, h = 0, x1, y1, x2, y2, u, v, a, sp;+    for (i = 1; i < len; ++i) {+      if (vertices[i][1] < vertices[h][1]) {+        h = i;+      } else if (vertices[i][1] == vertices[h][1]) {+        h = vertices[i][0] < vertices[h][0] ? i : h;+      }+    }+    for (i = 0; i < len; ++i) {+      if (i === h) continue;+      y1 = vertices[i][1] - vertices[h][1];+      x1 = vertices[i][0] - vertices[h][0];+      points.push({+        angle: Math.atan2(y1, x1),+        index: i+      });+    }+    points.sort(function(a, b) {+      return a.angle - b.angle;+    });+    a = points[0].angle;+    v = points[0].index;+    u = 0;+    for (i = 1; i < plen; ++i) {+      j = points[i].index;+      if (a == points[i].angle) {+        x1 = vertices[v][0] - vertices[h][0];+        y1 = vertices[v][1] - vertices[h][1];+        x2 = vertices[j][0] - vertices[h][0];+        y2 = vertices[j][1] - vertices[h][1];+        if (x1 * x1 + y1 * y1 >= x2 * x2 + y2 * y2) {+          points[i].index = -1;+        } else {+          points[u].index = -1;+          a = points[i].angle;+          u = i;+          v = j;+        }+      } else {+        a = points[i].angle;+        u = i;+        v = j;+      }+    }+    stack.push(h);+    for (i = 0, j = 0; i < 2; ++j) {+      if (points[j].index !== -1) {+        stack.push(points[j].index);+        i++;+      }+    }+    sp = stack.length;+    for (; j < plen; ++j) {+      if (points[j].index === -1) continue;+      while (!d3_geom_hullCCW(stack[sp - 2], stack[sp - 1], points[j].index, vertices)) {+        --sp;+      }+      stack[sp++] = points[j].index;+    }+    var poly = [];+    for (i = 0; i < sp; ++i) {+      poly.push(vertices[stack[i]]);+    }+    return poly;+  };+  d3.geom.polygon = function(coordinates) {+    coordinates.area = function() {+      var i = 0, n = coordinates.length, a = coordinates[n - 1][0] * coordinates[0][1], b = coordinates[n - 1][1] * coordinates[0][0];+      while (++i < n) {+        a += coordinates[i - 1][0] * coordinates[i][1];+        b += coordinates[i - 1][1] * coordinates[i][0];+      }+      return (b - a) * .5;+    };+    coordinates.centroid = function(k) {+      var i = -1, n = coordinates.length, x = 0, y = 0, a, b = coordinates[n - 1], c;+      if (!arguments.length) k = -1 / (6 * coordinates.area());+      while (++i < n) {+        a = b;+        b = coordinates[i];+        c = a[0] * b[1] - b[0] * a[1];+        x += (a[0] + b[0]) * c;+        y += (a[1] + b[1]) * c;+      }+      return [ x * k, y * k ];+    };+    coordinates.clip = function(subject) {+      var input, i = -1, n = coordinates.length, j, m, a = coordinates[n - 1], b, c, d;+      while (++i < n) {+        input = subject.slice();+        subject.length = 0;+        b = coordinates[i];+        c = input[(m = input.length) - 1];+        j = -1;+        while (++j < m) {+          d = input[j];+          if (d3_geom_polygonInside(d, a, b)) {+            if (!d3_geom_polygonInside(c, a, b)) {+              subject.push(d3_geom_polygonIntersect(c, d, a, b));+            }+            subject.push(d);+          } else if (d3_geom_polygonInside(c, a, b)) {+            subject.push(d3_geom_polygonIntersect(c, d, a, b));+          }+          c = d;+        }+        a = b;+      }+      return subject;+    };+    return coordinates;+  };+  d3.geom.voronoi = function(vertices) {+    var polygons = vertices.map(function() {+      return [];+    });+    d3_voronoi_tessellate(vertices, function(e) {+      var s1, s2, x1, x2, y1, y2;+      if (e.a === 1 && e.b >= 0) {+        s1 = e.ep.r;+        s2 = e.ep.l;+      } else {+        s1 = e.ep.l;+        s2 = e.ep.r;+      }+      if (e.a === 1) {+        y1 = s1 ? s1.y : -1e6;+        x1 = e.c - e.b * y1;+        y2 = s2 ? s2.y : 1e6;+        x2 = e.c - e.b * y2;+      } else {+        x1 = s1 ? s1.x : -1e6;+        y1 = e.c - e.a * x1;+        x2 = s2 ? s2.x : 1e6;+        y2 = e.c - e.a * x2;+      }+      var v1 = [ x1, y1 ], v2 = [ x2, y2 ];+      polygons[e.region.l.index].push(v1, v2);+      polygons[e.region.r.index].push(v1, v2);+    });+    return polygons.map(function(polygon, i) {+      var cx = vertices[i][0], cy = vertices[i][1];+      polygon.forEach(function(v) {+        v.angle = Math.atan2(v[0] - cx, v[1] - cy);+      });+      return polygon.sort(function(a, b) {+        return a.angle - b.angle;+      }).filter(function(d, i) {+        return !i || d.angle - polygon[i - 1].angle > 1e-10;+      });+    });+  };+  var d3_voronoi_opposite = {+    l: "r",+    r: "l"+  };+  d3.geom.delaunay = function(vertices) {+    var edges = vertices.map(function() {+      return [];+    }), triangles = [];+    d3_voronoi_tessellate(vertices, function(e) {+      edges[e.region.l.index].push(vertices[e.region.r.index]);+    });+    edges.forEach(function(edge, i) {+      var v = vertices[i], cx = v[0], cy = v[1];+      edge.forEach(function(v) {+        v.angle = Math.atan2(v[0] - cx, v[1] - cy);+      });+      edge.sort(function(a, b) {+        return a.angle - b.angle;+      });+      for (var j = 0, m = edge.length - 1; j < m; j++) {+        triangles.push([ v, edge[j], edge[j + 1] ]);+      }+    });+    return triangles;+  };+  d3.geom.quadtree = function(points, x1, y1, x2, y2) {+    function insert(n, p, x1, y1, x2, y2) {+      if (isNaN(p.x) || isNaN(p.y)) return;+      if (n.leaf) {+        var v = n.point;+        if (v) {+          if (Math.abs(v.x - p.x) + Math.abs(v.y - p.y) < .01) {+            insertChild(n, p, x1, y1, x2, y2);+          } else {+            n.point = null;+            insertChild(n, v, x1, y1, x2, y2);+            insertChild(n, p, x1, y1, x2, y2);+          }+        } else {+          n.point = p;+        }+      } else {+        insertChild(n, p, x1, y1, x2, y2);+      }+    }+    function insertChild(n, p, x1, y1, x2, y2) {+      var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, right = p.x >= sx, bottom = p.y >= sy, i = (bottom << 1) + right;+      n.leaf = false;+      n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());+      if (right) x1 = sx; else x2 = sx;+      if (bottom) y1 = sy; else y2 = sy;+      insert(n, p, x1, y1, x2, y2);+    }+    var p, i = -1, n = points.length;+    if (n && isNaN(points[0].x)) points = points.map(d3_geom_quadtreePoint);+    if (arguments.length < 5) {+      if (arguments.length === 3) {+        y2 = x2 = y1;+        y1 = x1;+      } else {+        x1 = y1 = Infinity;+        x2 = y2 = -Infinity;+        while (++i < n) {+          p = points[i];+          if (p.x < x1) x1 = p.x;+          if (p.y < y1) y1 = p.y;+          if (p.x > x2) x2 = p.x;+          if (p.y > y2) y2 = p.y;+        }+        var dx = x2 - x1, dy = y2 - y1;+        if (dx > dy) y2 = y1 + dx; else x2 = x1 + dy;+      }+    }+    var root = d3_geom_quadtreeNode();+    root.add = function(p) {+      insert(root, p, x1, y1, x2, y2);+    };+    root.visit = function(f) {+      d3_geom_quadtreeVisit(f, root, x1, y1, x2, y2);+    };+    points.forEach(root.add);+    return root;+  };+  d3.time = {};+  var d3_time = Date, d3_time_daySymbols = [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ];+  d3_time_utc.prototype = {+    getDate: function() {+      return this._.getUTCDate();+    },+    getDay: function() {+      return this._.getUTCDay();+    },+    getFullYear: function() {+      return this._.getUTCFullYear();+    },+    getHours: function() {+      return this._.getUTCHours();+    },+    getMilliseconds: function() {+      return this._.getUTCMilliseconds();+    },+    getMinutes: function() {+      return this._.getUTCMinutes();+    },+    getMonth: function() {+      return this._.getUTCMonth();+    },+    getSeconds: function() {+      return this._.getUTCSeconds();+    },+    getTime: function() {+      return this._.getTime();+    },+    getTimezoneOffset: function() {+      return 0;+    },+    valueOf: function() {+      return this._.valueOf();+    },+    setDate: function() {+      d3_time_prototype.setUTCDate.apply(this._, arguments);+    },+    setDay: function() {+      d3_time_prototype.setUTCDay.apply(this._, arguments);+    },+    setFullYear: function() {+      d3_time_prototype.setUTCFullYear.apply(this._, arguments);+    },+    setHours: function() {+      d3_time_prototype.setUTCHours.apply(this._, arguments);+    },+    setMilliseconds: function() {+      d3_time_prototype.setUTCMilliseconds.apply(this._, arguments);+    },+    setMinutes: function() {+      d3_time_prototype.setUTCMinutes.apply(this._, arguments);+    },+    setMonth: function() {+      d3_time_prototype.setUTCMonth.apply(this._, arguments);+    },+    setSeconds: function() {+      d3_time_prototype.setUTCSeconds.apply(this._, arguments);+    },+    setTime: function() {+      d3_time_prototype.setTime.apply(this._, arguments);+    }+  };+  var d3_time_prototype = Date.prototype;+  var d3_time_formatDateTime = "%a %b %e %H:%M:%S %Y", d3_time_formatDate = "%m/%d/%y", d3_time_formatTime = "%H:%M:%S";+  var d3_time_days = d3_time_daySymbols, d3_time_dayAbbreviations = d3_time_days.map(d3_time_formatAbbreviate), d3_time_months = [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ], d3_time_monthAbbreviations = d3_time_months.map(d3_time_formatAbbreviate);+  d3.time.format = function(template) {+    function format(date) {+      var string = [], i = -1, j = 0, c, f;+      while (++i < n) {+        if (template.charCodeAt(i) == 37) {+          string.push(template.substring(j, i), (f = d3_time_formats[c = template.charAt(++i)]) ? f(date) : c);+          j = i + 1;+        }+      }+      string.push(template.substring(j, i));+      return string.join("");+    }+    var n = template.length;+    format.parse = function(string) {+      var d = {+        y: 1900,+        m: 0,+        d: 1,+        H: 0,+        M: 0,+        S: 0,+        L: 0+      }, i = d3_time_parse(d, template, string, 0);+      if (i != string.length) return null;+      if ("p" in d) d.H = d.H % 12 + d.p * 12;+      var date = new d3_time;+      date.setFullYear(d.y, d.m, d.d);+      date.setHours(d.H, d.M, d.S, d.L);+      return date;+    };+    format.toString = function() {+      return template;+    };+    return format;+  };+  var d3_time_zfill2 = d3.format("02d"), d3_time_zfill3 = d3.format("03d"), d3_time_zfill4 = d3.format("04d"), d3_time_sfill2 = d3.format("2d");+  var d3_time_dayRe = d3_time_formatRe(d3_time_days), d3_time_dayAbbrevRe = d3_time_formatRe(d3_time_dayAbbreviations), d3_time_monthRe = d3_time_formatRe(d3_time_months), d3_time_monthLookup = d3_time_formatLookup(d3_time_months), d3_time_monthAbbrevRe = d3_time_formatRe(d3_time_monthAbbreviations), d3_time_monthAbbrevLookup = d3_time_formatLookup(d3_time_monthAbbreviations);+  var d3_time_formats = {+    a: function(d) {+      return d3_time_dayAbbreviations[d.getDay()];+    },+    A: function(d) {+      return d3_time_days[d.getDay()];+    },+    b: function(d) {+      return d3_time_monthAbbreviations[d.getMonth()];+    },+    B: function(d) {+      return d3_time_months[d.getMonth()];+    },+    c: d3.time.format(d3_time_formatDateTime),+    d: function(d) {+      return d3_time_zfill2(d.getDate());+    },+    e: function(d) {+      return d3_time_sfill2(d.getDate());+    },+    H: function(d) {+      return d3_time_zfill2(d.getHours());+    },+    I: function(d) {+      return d3_time_zfill2(d.getHours() % 12 || 12);+    },+    j: function(d) {+      return d3_time_zfill3(1 + d3.time.dayOfYear(d));+    },+    L: function(d) {+      return d3_time_zfill3(d.getMilliseconds());+    },+    m: function(d) {+      return d3_time_zfill2(d.getMonth() + 1);+    },+    M: function(d) {+      return d3_time_zfill2(d.getMinutes());+    },+    p: function(d) {+      return d.getHours() >= 12 ? "PM" : "AM";+    },+    S: function(d) {+      return d3_time_zfill2(d.getSeconds());+    },+    U: function(d) {+      return d3_time_zfill2(d3.time.sundayOfYear(d));+    },+    w: function(d) {+      return d.getDay();+    },+    W: function(d) {+      return d3_time_zfill2(d3.time.mondayOfYear(d));+    },+    x: d3.time.format(d3_time_formatDate),+    X: d3.time.format(d3_time_formatTime),+    y: function(d) {+      return d3_time_zfill2(d.getFullYear() % 100);+    },+    Y: function(d) {+      return d3_time_zfill4(d.getFullYear() % 1e4);+    },+    Z: d3_time_zone,+    "%": function(d) {+      return "%";+    }+  };+  var d3_time_parsers = {+    a: d3_time_parseWeekdayAbbrev,+    A: d3_time_parseWeekday,+    b: d3_time_parseMonthAbbrev,+    B: d3_time_parseMonth,+    c: d3_time_parseLocaleFull,+    d: d3_time_parseDay,+    e: d3_time_parseDay,+    H: d3_time_parseHour24,+    I: d3_time_parseHour24,+    L: d3_time_parseMilliseconds,+    m: d3_time_parseMonthNumber,+    M: d3_time_parseMinutes,+    p: d3_time_parseAmPm,+    S: d3_time_parseSeconds,+    x: d3_time_parseLocaleDate,+    X: d3_time_parseLocaleTime,+    y: d3_time_parseYear,+    Y: d3_time_parseFullYear+  };+  var d3_time_numberRe = /^\s*\d+/;+  var d3_time_amPmLookup = d3.map({+    am: 0,+    pm: 1+  });+  d3.time.format.utc = function(template) {+    function format(date) {+      try {+        d3_time = d3_time_utc;+        var utc = new d3_time;+        utc._ = date;+        return local(utc);+      } finally {+        d3_time = Date;+      }+    }+    var local = d3.time.format(template);+    format.parse = function(string) {+      try {+        d3_time = d3_time_utc;+        var date = local.parse(string);+        return date && date._;+      } finally {+        d3_time = Date;+      }+    };+    format.toString = local.toString;+    return format;+  };+  var d3_time_formatIso = d3.time.format.utc("%Y-%m-%dT%H:%M:%S.%LZ");+  d3.time.format.iso = Date.prototype.toISOString ? d3_time_formatIsoNative : d3_time_formatIso;+  d3_time_formatIsoNative.parse = function(string) {+    var date = new Date(string);+    return isNaN(date) ? null : date;+  };+  d3_time_formatIsoNative.toString = d3_time_formatIso.toString;+  d3.time.second = d3_time_interval(function(date) {+    return new d3_time(Math.floor(date / 1e3) * 1e3);+  }, function(date, offset) {+    date.setTime(date.getTime() + Math.floor(offset) * 1e3);+  }, function(date) {+    return date.getSeconds();+  });+  d3.time.seconds = d3.time.second.range;+  d3.time.seconds.utc = d3.time.second.utc.range;+  d3.time.minute = d3_time_interval(function(date) {+    return new d3_time(Math.floor(date / 6e4) * 6e4);+  }, function(date, offset) {+    date.setTime(date.getTime() + Math.floor(offset) * 6e4);+  }, function(date) {+    return date.getMinutes();+  });+  d3.time.minutes = d3.time.minute.range;+  d3.time.minutes.utc = d3.time.minute.utc.range;+  d3.time.hour = d3_time_interval(function(date) {+    var timezone = date.getTimezoneOffset() / 60;+    return new d3_time((Math.floor(date / 36e5 - timezone) + timezone) * 36e5);+  }, function(date, offset) {+    date.setTime(date.getTime() + Math.floor(offset) * 36e5);+  }, function(date) {+    return date.getHours();+  });+  d3.time.hours = d3.time.hour.range;+  d3.time.hours.utc = d3.time.hour.utc.range;+  d3.time.day = d3_time_interval(function(date) {+    var day = new d3_time(1970, 0);+    day.setFullYear(date.getFullYear(), date.getMonth(), date.getDate());+    return day;+  }, function(date, offset) {+    date.setDate(date.getDate() + offset);+  }, function(date) {+    return date.getDate() - 1;+  });+  d3.time.days = d3.time.day.range;+  d3.time.days.utc = d3.time.day.utc.range;+  d3.time.dayOfYear = function(date) {+    var year = d3.time.year(date);+    return Math.floor((date - year - (date.getTimezoneOffset() - year.getTimezoneOffset()) * 6e4) / 864e5);+  };+  d3_time_daySymbols.forEach(function(day, i) {+    day = day.toLowerCase();+    i = 7 - i;+    var interval = d3.time[day] = d3_time_interval(function(date) {+      (date = d3.time.day(date)).setDate(date.getDate() - (date.getDay() + i) % 7);+      return date;+    }, function(date, offset) {+      date.setDate(date.getDate() + Math.floor(offset) * 7);+    }, function(date) {+      var day = d3.time.year(date).getDay();+      return Math.floor((d3.time.dayOfYear(date) + (day + i) % 7) / 7) - (day !== i);+    });+    d3.time[day + "s"] = interval.range;+    d3.time[day + "s"].utc = interval.utc.range;+    d3.time[day + "OfYear"] = function(date) {+      var day = d3.time.year(date).getDay();+      return Math.floor((d3.time.dayOfYear(date) + (day + i) % 7) / 7);+    };+  });+  d3.time.week = d3.time.sunday;+  d3.time.weeks = d3.time.sunday.range;+  d3.time.weeks.utc = d3.time.sunday.utc.range;+  d3.time.weekOfYear = d3.time.sundayOfYear;+  d3.time.month = d3_time_interval(function(date) {+    date = d3.time.day(date);+    date.setDate(1);+    return date;+  }, function(date, offset) {+    date.setMonth(date.getMonth() + offset);+  }, function(date) {+    return date.getMonth();+  });+  d3.time.months = d3.time.month.range;+  d3.time.months.utc = d3.time.month.utc.range;+  d3.time.year = d3_time_interval(function(date) {+    date = d3.time.day(date);+    date.setMonth(0, 1);+    return date;+  }, function(date, offset) {+    date.setFullYear(date.getFullYear() + offset);+  }, function(date) {+    return date.getFullYear();+  });+  d3.time.years = d3.time.year.range;+  d3.time.years.utc = d3.time.year.utc.range;+  var d3_time_scaleSteps = [ 1e3, 5e3, 15e3, 3e4, 6e4, 3e5, 9e5, 18e5, 36e5, 108e5, 216e5, 432e5, 864e5, 1728e5, 6048e5, 2592e6, 7776e6, 31536e6 ];+  var d3_time_scaleLocalMethods = [ [ d3.time.second, 1 ], [ d3.time.second, 5 ], [ d3.time.second, 15 ], [ d3.time.second, 30 ], [ d3.time.minute, 1 ], [ d3.time.minute, 5 ], [ d3.time.minute, 15 ], [ d3.time.minute, 30 ], [ d3.time.hour, 1 ], [ d3.time.hour, 3 ], [ d3.time.hour, 6 ], [ d3.time.hour, 12 ], [ d3.time.day, 1 ], [ d3.time.day, 2 ], [ d3.time.week, 1 ], [ d3.time.month, 1 ], [ d3.time.month, 3 ], [ d3.time.year, 1 ] ];+  var d3_time_scaleLocalFormats = [ [ d3.time.format("%Y"), function(d) {+    return true;+  } ], [ d3.time.format("%B"), function(d) {+    return d.getMonth();+  } ], [ d3.time.format("%b %d"), function(d) {+    return d.getDate() != 1;+  } ], [ d3.time.format("%a %d"), function(d) {+    return d.getDay() && d.getDate() != 1;+  } ], [ d3.time.format("%I %p"), function(d) {+    return d.getHours();+  } ], [ d3.time.format("%I:%M"), function(d) {+    return d.getMinutes();+  } ], [ d3.time.format(":%S"), function(d) {+    return d.getSeconds();+  } ], [ d3.time.format(".%L"), function(d) {+    return d.getMilliseconds();+  } ] ];+  var d3_time_scaleLinear = d3.scale.linear(), d3_time_scaleLocalFormat = d3_time_scaleFormat(d3_time_scaleLocalFormats);+  d3_time_scaleLocalMethods.year = function(extent, m) {+    return d3_time_scaleLinear.domain(extent.map(d3_time_scaleGetYear)).ticks(m).map(d3_time_scaleSetYear);+  };+  d3.time.scale = function() {+    return d3_time_scale(d3.scale.linear(), d3_time_scaleLocalMethods, d3_time_scaleLocalFormat);+  };+  var d3_time_scaleUTCMethods = d3_time_scaleLocalMethods.map(function(m) {+    return [ m[0].utc, m[1] ];+  });+  var d3_time_scaleUTCFormats = [ [ d3.time.format.utc("%Y"), function(d) {+    return true;+  } ], [ d3.time.format.utc("%B"), function(d) {+    return d.getUTCMonth();+  } ], [ d3.time.format.utc("%b %d"), function(d) {+    return d.getUTCDate() != 1;+  } ], [ d3.time.format.utc("%a %d"), function(d) {+    return d.getUTCDay() && d.getUTCDate() != 1;+  } ], [ d3.time.format.utc("%I %p"), function(d) {+    return d.getUTCHours();+  } ], [ d3.time.format.utc("%I:%M"), function(d) {+    return d.getUTCMinutes();+  } ], [ d3.time.format.utc(":%S"), function(d) {+    return d.getUTCSeconds();+  } ], [ d3.time.format.utc(".%L"), function(d) {+    return d.getUTCMilliseconds();+  } ] ];+  var d3_time_scaleUTCFormat = d3_time_scaleFormat(d3_time_scaleUTCFormats);+  d3_time_scaleUTCMethods.year = function(extent, m) {+    return d3_time_scaleLinear.domain(extent.map(d3_time_scaleUTCGetYear)).ticks(m).map(d3_time_scaleUTCSetYear);+  };+  d3.time.scale.utc = function() {+    return d3_time_scale(d3.scale.linear(), d3_time_scaleUTCMethods, d3_time_scaleUTCFormat);+  };+})();
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@@ -0,0 +1,16393 @@+// https://d3js.org Version 4.4.0. Copyright 2016 Mike Bostock.+(function (global, factory) {+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :+  typeof define === 'function' && define.amd ? define(['exports'], factory) :+  (factory((global.d3 = global.d3 || {})));+}(this, (function (exports) { 'use strict';++var version = "4.4.0";++var ascending = function(a, b) {+  return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;+};++var bisector = function(compare) {+  if (compare.length === 1) compare = ascendingComparator(compare);+  return {+    left: function(a, x, lo, hi) {+      if (lo == null) lo = 0;+      if (hi == null) hi = a.length;+      while (lo < hi) {+        var mid = lo + hi >>> 1;+        if (compare(a[mid], x) < 0) lo = mid + 1;+        else hi = mid;+      }+      return lo;+    },+    right: function(a, x, lo, hi) {+      if (lo == null) lo = 0;+      if (hi == null) hi = a.length;+      while (lo < hi) {+        var mid = lo + hi >>> 1;+        if (compare(a[mid], x) > 0) hi = mid;+        else lo = mid + 1;+      }+      return lo;+    }+  };+};++function ascendingComparator(f) {+  return function(d, x) {+    return ascending(f(d), x);+  };+}++var ascendingBisect = bisector(ascending);+var bisectRight = ascendingBisect.right;+var bisectLeft = ascendingBisect.left;++var descending = function(a, b) {+  return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;+};++var number = function(x) {+  return x === null ? NaN : +x;+};++var variance = function(array, f) {+  var n = array.length,+      m = 0,+      a,+      d,+      s = 0,+      i = -1,+      j = 0;++  if (f == null) {+    while (++i < n) {+      if (!isNaN(a = number(array[i]))) {+        d = a - m;+        m += d / ++j;+        s += d * (a - m);+      }+    }+  }++  else {+    while (++i < n) {+      if (!isNaN(a = number(f(array[i], i, array)))) {+        d = a - m;+        m += d / ++j;+        s += d * (a - m);+      }+    }+  }++  if (j > 1) return s / (j - 1);+};++var deviation = function(array, f) {+  var v = variance(array, f);+  return v ? Math.sqrt(v) : v;+};++var extent = function(array, f) {+  var i = -1,+      n = array.length,+      a,+      b,+      c;++  if (f == null) {+    while (++i < n) if ((b = array[i]) != null && b >= b) { a = c = b; break; }+    while (++i < n) if ((b = array[i]) != null) {+      if (a > b) a = b;+      if (c < b) c = b;+    }+  }++  else {+    while (++i < n) if ((b = f(array[i], i, array)) != null && b >= b) { a = c = b; break; }+    while (++i < n) if ((b = f(array[i], i, array)) != null) {+      if (a > b) a = b;+      if (c < b) c = b;+    }+  }++  return [a, c];+};++var array = Array.prototype;++var slice = array.slice;+var map = array.map;++var constant$1 = function(x) {+  return function() {+    return x;+  };+};++var identity = function(x) {+  return x;+};++var range = function(start, stop, step) {+  start = +start, stop = +stop, step = (n = arguments.length) < 2 ? (stop = start, start = 0, 1) : n < 3 ? 1 : +step;++  var i = -1,+      n = Math.max(0, Math.ceil((stop - start) / step)) | 0,+      range = new Array(n);++  while (++i < n) {+    range[i] = start + i * step;+  }++  return range;+};++var e10 = Math.sqrt(50);+var e5 = Math.sqrt(10);+var e2 = Math.sqrt(2);++var ticks = function(start, stop, count) {+  var step = tickStep(start, stop, count);+  return range(+    Math.ceil(start / step) * step,+    Math.floor(stop / step) * step + step / 2, // inclusive+    step+  );+};++function tickStep(start, stop, count) {+  var step0 = Math.abs(stop - start) / Math.max(0, count),+      step1 = Math.pow(10, Math.floor(Math.log(step0) / Math.LN10)),+      error = step0 / step1;+  if (error >= e10) step1 *= 10;+  else if (error >= e5) step1 *= 5;+  else if (error >= e2) step1 *= 2;+  return stop < start ? -step1 : step1;+}++var sturges = function(values) {+  return Math.ceil(Math.log(values.length) / Math.LN2) + 1;+};++var histogram = function() {+  var value = identity,+      domain = extent,+      threshold = sturges;++  function histogram(data) {+    var i,+        n = data.length,+        x,+        values = new Array(n);++    for (i = 0; i < n; ++i) {+      values[i] = value(data[i], i, data);+    }++    var xz = domain(values),+        x0 = xz[0],+        x1 = xz[1],+        tz = threshold(values, x0, x1);++    // Convert number of thresholds into uniform thresholds.+    if (!Array.isArray(tz)) tz = ticks(x0, x1, tz);++    // Remove any thresholds outside the domain.+    var m = tz.length;+    while (tz[0] <= x0) tz.shift(), --m;+    while (tz[m - 1] >= x1) tz.pop(), --m;++    var bins = new Array(m + 1),+        bin;++    // Initialize bins.+    for (i = 0; i <= m; ++i) {+      bin = bins[i] = [];+      bin.x0 = i > 0 ? tz[i - 1] : x0;+      bin.x1 = i < m ? tz[i] : x1;+    }++    // Assign data to bins by value, ignoring any outside the domain.+    for (i = 0; i < n; ++i) {+      x = values[i];+      if (x0 <= x && x <= x1) {+        bins[bisectRight(tz, x, 0, m)].push(data[i]);+      }+    }++    return bins;+  }++  histogram.value = function(_) {+    return arguments.length ? (value = typeof _ === "function" ? _ : constant$1(_), histogram) : value;+  };++  histogram.domain = function(_) {+    return arguments.length ? (domain = typeof _ === "function" ? _ : constant$1([_[0], _[1]]), histogram) : domain;+  };++  histogram.thresholds = function(_) {+    return arguments.length ? (threshold = typeof _ === "function" ? _ : Array.isArray(_) ? constant$1(slice.call(_)) : constant$1(_), histogram) : threshold;+  };++  return histogram;+};++var threshold = function(array, p, f) {+  if (f == null) f = number;+  if (!(n = array.length)) return;+  if ((p = +p) <= 0 || n < 2) return +f(array[0], 0, array);+  if (p >= 1) return +f(array[n - 1], n - 1, array);+  var n,+      h = (n - 1) * p,+      i = Math.floor(h),+      a = +f(array[i], i, array),+      b = +f(array[i + 1], i + 1, array);+  return a + (b - a) * (h - i);+};++var freedmanDiaconis = function(values, min, max) {+  values = map.call(values, number).sort(ascending);+  return Math.ceil((max - min) / (2 * (threshold(values, 0.75) - threshold(values, 0.25)) * Math.pow(values.length, -1 / 3)));+};++var scott = function(values, min, max) {+  return Math.ceil((max - min) / (3.5 * deviation(values) * Math.pow(values.length, -1 / 3)));+};++var max = function(array, f) {+  var i = -1,+      n = array.length,+      a,+      b;++  if (f == null) {+    while (++i < n) if ((b = array[i]) != null && b >= b) { a = b; break; }+    while (++i < n) if ((b = array[i]) != null && b > a) a = b;+  }++  else {+    while (++i < n) if ((b = f(array[i], i, array)) != null && b >= b) { a = b; break; }+    while (++i < n) if ((b = f(array[i], i, array)) != null && b > a) a = b;+  }++  return a;+};++var mean = function(array, f) {+  var s = 0,+      n = array.length,+      a,+      i = -1,+      j = n;++  if (f == null) {+    while (++i < n) if (!isNaN(a = number(array[i]))) s += a; else --j;+  }++  else {+    while (++i < n) if (!isNaN(a = number(f(array[i], i, array)))) s += a; else --j;+  }++  if (j) return s / j;+};++var median = function(array, f) {+  var numbers = [],+      n = array.length,+      a,+      i = -1;++  if (f == null) {+    while (++i < n) if (!isNaN(a = number(array[i]))) numbers.push(a);+  }++  else {+    while (++i < n) if (!isNaN(a = number(f(array[i], i, array)))) numbers.push(a);+  }++  return threshold(numbers.sort(ascending), 0.5);+};++var merge = function(arrays) {+  var n = arrays.length,+      m,+      i = -1,+      j = 0,+      merged,+      array;++  while (++i < n) j += arrays[i].length;+  merged = new Array(j);++  while (--n >= 0) {+    array = arrays[n];+    m = array.length;+    while (--m >= 0) {+      merged[--j] = array[m];+    }+  }++  return merged;+};++var min = function(array, f) {+  var i = -1,+      n = array.length,+      a,+      b;++  if (f == null) {+    while (++i < n) if ((b = array[i]) != null && b >= b) { a = b; break; }+    while (++i < n) if ((b = array[i]) != null && a > b) a = b;+  }++  else {+    while (++i < n) if ((b = f(array[i], i, array)) != null && b >= b) { a = b; break; }+    while (++i < n) if ((b = f(array[i], i, array)) != null && a > b) a = b;+  }++  return a;+};++var pairs = function(array) {+  var i = 0, n = array.length - 1, p = array[0], pairs = new Array(n < 0 ? 0 : n);+  while (i < n) pairs[i] = [p, p = array[++i]];+  return pairs;+};++var permute = function(array, indexes) {+  var i = indexes.length, permutes = new Array(i);+  while (i--) permutes[i] = array[indexes[i]];+  return permutes;+};++var scan = function(array, compare) {+  if (!(n = array.length)) return;+  var i = 0,+      n,+      j = 0,+      xi,+      xj = array[j];++  if (!compare) compare = ascending;++  while (++i < n) if (compare(xi = array[i], xj) < 0 || compare(xj, xj) !== 0) xj = xi, j = i;++  if (compare(xj, xj) === 0) return j;+};++var shuffle = function(array, i0, i1) {+  var m = (i1 == null ? array.length : i1) - (i0 = i0 == null ? 0 : +i0),+      t,+      i;++  while (m) {+    i = Math.random() * m-- | 0;+    t = array[m + i0];+    array[m + i0] = array[i + i0];+    array[i + i0] = t;+  }++  return array;+};++var sum = function(array, f) {+  var s = 0,+      n = array.length,+      a,+      i = -1;++  if (f == null) {+    while (++i < n) if (a = +array[i]) s += a; // Note: zero and null are equivalent.+  }++  else {+    while (++i < n) if (a = +f(array[i], i, array)) s += a;+  }++  return s;+};++var transpose = function(matrix) {+  if (!(n = matrix.length)) return [];+  for (var i = -1, m = min(matrix, length), transpose = new Array(m); ++i < m;) {+    for (var j = -1, n, row = transpose[i] = new Array(n); ++j < n;) {+      row[j] = matrix[j][i];+    }+  }+  return transpose;+};++function length(d) {+  return d.length;+}++var zip = function() {+  return transpose(arguments);+};++var prefix = "$";++function Map() {}++Map.prototype = map$1.prototype = {+  constructor: Map,+  has: function(key) {+    return (prefix + key) in this;+  },+  get: function(key) {+    return this[prefix + key];+  },+  set: function(key, value) {+    this[prefix + key] = value;+    return this;+  },+  remove: function(key) {+    var property = prefix + key;+    return property in this && delete this[property];+  },+  clear: function() {+    for (var property in this) if (property[0] === prefix) delete this[property];+  },+  keys: function() {+    var keys = [];+    for (var property in this) if (property[0] === prefix) keys.push(property.slice(1));+    return keys;+  },+  values: function() {+    var values = [];+    for (var property in this) if (property[0] === prefix) values.push(this[property]);+    return values;+  },+  entries: function() {+    var entries = [];+    for (var property in this) if (property[0] === prefix) entries.push({key: property.slice(1), value: this[property]});+    return entries;+  },+  size: function() {+    var size = 0;+    for (var property in this) if (property[0] === prefix) ++size;+    return size;+  },+  empty: function() {+    for (var property in this) if (property[0] === prefix) return false;+    return true;+  },+  each: function(f) {+    for (var property in this) if (property[0] === prefix) f(this[property], property.slice(1), this);+  }+};++function map$1(object, f) {+  var map = new Map;++  // Copy constructor.+  if (object instanceof Map) object.each(function(value, key) { map.set(key, value); });++  // Index array by numeric index or specified key function.+  else if (Array.isArray(object)) {+    var i = -1,+        n = object.length,+        o;++    if (f == null) while (++i < n) map.set(i, object[i]);+    else while (++i < n) map.set(f(o = object[i], i, object), o);+  }++  // Convert object to map.+  else if (object) for (var key in object) map.set(key, object[key]);++  return map;+}++var nest = function() {+  var keys = [],+      sortKeys = [],+      sortValues,+      rollup,+      nest;++  function apply(array, depth, createResult, setResult) {+    if (depth >= keys.length) return rollup != null+        ? rollup(array) : (sortValues != null+        ? array.sort(sortValues)+        : array);++    var i = -1,+        n = array.length,+        key = keys[depth++],+        keyValue,+        value,+        valuesByKey = map$1(),+        values,+        result = createResult();++    while (++i < n) {+      if (values = valuesByKey.get(keyValue = key(value = array[i]) + "")) {+        values.push(value);+      } else {+        valuesByKey.set(keyValue, [value]);+      }+    }++    valuesByKey.each(function(values, key) {+      setResult(result, key, apply(values, depth, createResult, setResult));+    });++    return result;+  }++  function entries(map, depth) {+    if (++depth > keys.length) return map;+    var array, sortKey = sortKeys[depth - 1];+    if (rollup != null && depth >= keys.length) array = map.entries();+    else array = [], map.each(function(v, k) { array.push({key: k, values: entries(v, depth)}); });+    return sortKey != null ? array.sort(function(a, b) { return sortKey(a.key, b.key); }) : array;+  }++  return nest = {+    object: function(array) { return apply(array, 0, createObject, setObject); },+    map: function(array) { return apply(array, 0, createMap, setMap); },+    entries: function(array) { return entries(apply(array, 0, createMap, setMap), 0); },+    key: function(d) { keys.push(d); return nest; },+    sortKeys: function(order) { sortKeys[keys.length - 1] = order; return nest; },+    sortValues: function(order) { sortValues = order; return nest; },+    rollup: function(f) { rollup = f; return nest; }+  };+};++function createObject() {+  return {};+}++function setObject(object, key, value) {+  object[key] = value;+}++function createMap() {+  return map$1();+}++function setMap(map, key, value) {+  map.set(key, value);+}++function Set() {}++var proto = map$1.prototype;++Set.prototype = set.prototype = {+  constructor: Set,+  has: proto.has,+  add: function(value) {+    value += "";+    this[prefix + value] = value;+    return this;+  },+  remove: proto.remove,+  clear: proto.clear,+  values: proto.keys,+  size: proto.size,+  empty: proto.empty,+  each: proto.each+};++function set(object, f) {+  var set = new Set;++  // Copy constructor.+  if (object instanceof Set) object.each(function(value) { set.add(value); });++  // Otherwise, assume it’s an array.+  else if (object) {+    var i = -1, n = object.length;+    if (f == null) while (++i < n) set.add(object[i]);+    else while (++i < n) set.add(f(object[i], i, object));+  }++  return set;+}++var keys = function(map) {+  var keys = [];+  for (var key in map) keys.push(key);+  return keys;+};++var values = function(map) {+  var values = [];+  for (var key in map) values.push(map[key]);+  return values;+};++var entries = function(map) {+  var entries = [];+  for (var key in map) entries.push({key: key, value: map[key]});+  return entries;+};++var uniform = function(min, max) {+  min = min == null ? 0 : +min;+  max = max == null ? 1 : +max;+  if (arguments.length === 1) max = min, min = 0;+  else max -= min;+  return function() {+    return Math.random() * max + min;+  };+};++var normal = function(mu, sigma) {+  var x, r;+  mu = mu == null ? 0 : +mu;+  sigma = sigma == null ? 1 : +sigma;+  return function() {+    var y;++    // If available, use the second previously-generated uniform random.+    if (x != null) y = x, x = null;++    // Otherwise, generate a new x and y.+    else do {+      x = Math.random() * 2 - 1;+      y = Math.random() * 2 - 1;+      r = x * x + y * y;+    } while (!r || r > 1);++    return mu + sigma * y * Math.sqrt(-2 * Math.log(r) / r);+  };+};++var logNormal = function() {+  var randomNormal = normal.apply(this, arguments);+  return function() {+    return Math.exp(randomNormal());+  };+};++var irwinHall = function(n) {+  return function() {+    for (var sum = 0, i = 0; i < n; ++i) sum += Math.random();+    return sum;+  };+};++var bates = function(n) {+  var randomIrwinHall = irwinHall(n);+  return function() {+    return randomIrwinHall() / n;+  };+};++var exponential = function(lambda) {+  return function() {+    return -Math.log(1 - Math.random()) / lambda;+  };+};++function linear(t) {+  return +t;+}++function quadIn(t) {+  return t * t;+}++function quadOut(t) {+  return t * (2 - t);+}++function quadInOut(t) {+  return ((t *= 2) <= 1 ? t * t : --t * (2 - t) + 1) / 2;+}++function cubicIn(t) {+  return t * t * t;+}++function cubicOut(t) {+  return --t * t * t + 1;+}++function cubicInOut(t) {+  return ((t *= 2) <= 1 ? t * t * t : (t -= 2) * t * t + 2) / 2;+}++var exponent = 3;++var polyIn = (function custom(e) {+  e = +e;++  function polyIn(t) {+    return Math.pow(t, e);+  }++  polyIn.exponent = custom;++  return polyIn;+})(exponent);++var polyOut = (function custom(e) {+  e = +e;++  function polyOut(t) {+    return 1 - Math.pow(1 - t, e);+  }++  polyOut.exponent = custom;++  return polyOut;+})(exponent);++var polyInOut = (function custom(e) {+  e = +e;++  function polyInOut(t) {+    return ((t *= 2) <= 1 ? Math.pow(t, e) : 2 - Math.pow(2 - t, e)) / 2;+  }++  polyInOut.exponent = custom;++  return polyInOut;+})(exponent);++var pi = Math.PI;+var halfPi = pi / 2;++function sinIn(t) {+  return 1 - Math.cos(t * halfPi);+}++function sinOut(t) {+  return Math.sin(t * halfPi);+}++function sinInOut(t) {+  return (1 - Math.cos(pi * t)) / 2;+}++function expIn(t) {+  return Math.pow(2, 10 * t - 10);+}++function expOut(t) {+  return 1 - Math.pow(2, -10 * t);+}++function expInOut(t) {+  return ((t *= 2) <= 1 ? Math.pow(2, 10 * t - 10) : 2 - Math.pow(2, 10 - 10 * t)) / 2;+}++function circleIn(t) {+  return 1 - Math.sqrt(1 - t * t);+}++function circleOut(t) {+  return Math.sqrt(1 - --t * t);+}++function circleInOut(t) {+  return ((t *= 2) <= 1 ? 1 - Math.sqrt(1 - t * t) : Math.sqrt(1 - (t -= 2) * t) + 1) / 2;+}++var b1 = 4 / 11;+var b2 = 6 / 11;+var b3 = 8 / 11;+var b4 = 3 / 4;+var b5 = 9 / 11;+var b6 = 10 / 11;+var b7 = 15 / 16;+var b8 = 21 / 22;+var b9 = 63 / 64;+var b0 = 1 / b1 / b1;++function bounceIn(t) {+  return 1 - bounceOut(1 - t);+}++function bounceOut(t) {+  return (t = +t) < b1 ? b0 * t * t : t < b3 ? b0 * (t -= b2) * t + b4 : t < b6 ? b0 * (t -= b5) * t + b7 : b0 * (t -= b8) * t + b9;+}++function bounceInOut(t) {+  return ((t *= 2) <= 1 ? 1 - bounceOut(1 - t) : bounceOut(t - 1) + 1) / 2;+}++var overshoot = 1.70158;++var backIn = (function custom(s) {+  s = +s;++  function backIn(t) {+    return t * t * ((s + 1) * t - s);+  }++  backIn.overshoot = custom;++  return backIn;+})(overshoot);++var backOut = (function custom(s) {+  s = +s;++  function backOut(t) {+    return --t * t * ((s + 1) * t + s) + 1;+  }++  backOut.overshoot = custom;++  return backOut;+})(overshoot);++var backInOut = (function custom(s) {+  s = +s;++  function backInOut(t) {+    return ((t *= 2) < 1 ? t * t * ((s + 1) * t - s) : (t -= 2) * t * ((s + 1) * t + s) + 2) / 2;+  }++  backInOut.overshoot = custom;++  return backInOut;+})(overshoot);++var tau = 2 * Math.PI;+var amplitude = 1;+var period = 0.3;++var elasticIn = (function custom(a, p) {+  var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau);++  function elasticIn(t) {+    return a * Math.pow(2, 10 * --t) * Math.sin((s - t) / p);+  }++  elasticIn.amplitude = function(a) { return custom(a, p * tau); };+  elasticIn.period = function(p) { return custom(a, p); };++  return elasticIn;+})(amplitude, period);++var elasticOut = (function custom(a, p) {+  var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau);++  function elasticOut(t) {+    return 1 - a * Math.pow(2, -10 * (t = +t)) * Math.sin((t + s) / p);+  }++  elasticOut.amplitude = function(a) { return custom(a, p * tau); };+  elasticOut.period = function(p) { return custom(a, p); };++  return elasticOut;+})(amplitude, period);++var elasticInOut = (function custom(a, p) {+  var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau);++  function elasticInOut(t) {+    return ((t = t * 2 - 1) < 0+        ? a * Math.pow(2, 10 * t) * Math.sin((s - t) / p)+        : 2 - a * Math.pow(2, -10 * t) * Math.sin((s + t) / p)) / 2;+  }++  elasticInOut.amplitude = function(a) { return custom(a, p * tau); };+  elasticInOut.period = function(p) { return custom(a, p); };++  return elasticInOut;+})(amplitude, period);++var area = function(polygon) {+  var i = -1,+      n = polygon.length,+      a,+      b = polygon[n - 1],+      area = 0;++  while (++i < n) {+    a = b;+    b = polygon[i];+    area += a[1] * b[0] - a[0] * b[1];+  }++  return area / 2;+};++var centroid = function(polygon) {+  var i = -1,+      n = polygon.length,+      x = 0,+      y = 0,+      a,+      b = polygon[n - 1],+      c,+      k = 0;++  while (++i < n) {+    a = b;+    b = polygon[i];+    k += c = a[0] * b[1] - b[0] * a[1];+    x += (a[0] + b[0]) * c;+    y += (a[1] + b[1]) * c;+  }++  return k *= 3, [x / k, y / k];+};++// Returns the 2D cross product of AB and AC vectors, i.e., the z-component of+// the 3D cross product in a quadrant I Cartesian coordinate system (+x is+// right, +y is up). Returns a positive value if ABC is counter-clockwise,+// negative if clockwise, and zero if the points are collinear.+var cross = function(a, b, c) {+  return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]);+};++function lexicographicOrder(a, b) {+  return a[0] - b[0] || a[1] - b[1];+}++// Computes the upper convex hull per the monotone chain algorithm.+// Assumes points.length >= 3, is sorted by x, unique in y.+// Returns an array of indices into points in left-to-right order.+function computeUpperHullIndexes(points) {+  var n = points.length,+      indexes = [0, 1],+      size = 2;++  for (var i = 2; i < n; ++i) {+    while (size > 1 && cross(points[indexes[size - 2]], points[indexes[size - 1]], points[i]) <= 0) --size;+    indexes[size++] = i;+  }++  return indexes.slice(0, size); // remove popped points+}++var hull = function(points) {+  if ((n = points.length) < 3) return null;++  var i,+      n,+      sortedPoints = new Array(n),+      flippedPoints = new Array(n);++  for (i = 0; i < n; ++i) sortedPoints[i] = [+points[i][0], +points[i][1], i];+  sortedPoints.sort(lexicographicOrder);+  for (i = 0; i < n; ++i) flippedPoints[i] = [sortedPoints[i][0], -sortedPoints[i][1]];++  var upperIndexes = computeUpperHullIndexes(sortedPoints),+      lowerIndexes = computeUpperHullIndexes(flippedPoints);++  // Construct the hull polygon, removing possible duplicate endpoints.+  var skipLeft = lowerIndexes[0] === upperIndexes[0],+      skipRight = lowerIndexes[lowerIndexes.length - 1] === upperIndexes[upperIndexes.length - 1],+      hull = [];++  // Add upper hull in right-to-l order.+  // Then add lower hull in left-to-right order.+  for (i = upperIndexes.length - 1; i >= 0; --i) hull.push(points[sortedPoints[upperIndexes[i]][2]]);+  for (i = +skipLeft; i < lowerIndexes.length - skipRight; ++i) hull.push(points[sortedPoints[lowerIndexes[i]][2]]);++  return hull;+};++var contains = function(polygon, point) {+  var n = polygon.length,+      p = polygon[n - 1],+      x = point[0], y = point[1],+      x0 = p[0], y0 = p[1],+      x1, y1,+      inside = false;++  for (var i = 0; i < n; ++i) {+    p = polygon[i], x1 = p[0], y1 = p[1];+    if (((y1 > y) !== (y0 > y)) && (x < (x0 - x1) * (y - y1) / (y0 - y1) + x1)) inside = !inside;+    x0 = x1, y0 = y1;+  }++  return inside;+};++var length$1 = function(polygon) {+  var i = -1,+      n = polygon.length,+      b = polygon[n - 1],+      xa,+      ya,+      xb = b[0],+      yb = b[1],+      perimeter = 0;++  while (++i < n) {+    xa = xb;+    ya = yb;+    b = polygon[i];+    xb = b[0];+    yb = b[1];+    xa -= xb;+    ya -= yb;+    perimeter += Math.sqrt(xa * xa + ya * ya);+  }++  return perimeter;+};++var pi$1 = Math.PI;+var tau$1 = 2 * pi$1;+var epsilon = 1e-6;+var tauEpsilon = tau$1 - epsilon;++function Path() {+  this._x0 = this._y0 = // start of current subpath+  this._x1 = this._y1 = null; // end of current subpath+  this._ = "";+}++function path() {+  return new Path;+}++Path.prototype = path.prototype = {+  constructor: Path,+  moveTo: function(x, y) {+    this._ += "M" + (this._x0 = this._x1 = +x) + "," + (this._y0 = this._y1 = +y);+  },+  closePath: function() {+    if (this._x1 !== null) {+      this._x1 = this._x0, this._y1 = this._y0;+      this._ += "Z";+    }+  },+  lineTo: function(x, y) {+    this._ += "L" + (this._x1 = +x) + "," + (this._y1 = +y);+  },+  quadraticCurveTo: function(x1, y1, x, y) {+    this._ += "Q" + (+x1) + "," + (+y1) + "," + (this._x1 = +x) + "," + (this._y1 = +y);+  },+  bezierCurveTo: function(x1, y1, x2, y2, x, y) {+    this._ += "C" + (+x1) + "," + (+y1) + "," + (+x2) + "," + (+y2) + "," + (this._x1 = +x) + "," + (this._y1 = +y);+  },+  arcTo: function(x1, y1, x2, y2, r) {+    x1 = +x1, y1 = +y1, x2 = +x2, y2 = +y2, r = +r;+    var x0 = this._x1,+        y0 = this._y1,+        x21 = x2 - x1,+        y21 = y2 - y1,+        x01 = x0 - x1,+        y01 = y0 - y1,+        l01_2 = x01 * x01 + y01 * y01;++    // Is the radius negative? Error.+    if (r < 0) throw new Error("negative radius: " + r);++    // Is this path empty? Move to (x1,y1).+    if (this._x1 === null) {+      this._ += "M" + (this._x1 = x1) + "," + (this._y1 = y1);+    }++    // Or, is (x1,y1) coincident with (x0,y0)? Do nothing.+    else if (!(l01_2 > epsilon)) {}++    // Or, are (x0,y0), (x1,y1) and (x2,y2) collinear?+    // Equivalently, is (x1,y1) coincident with (x2,y2)?+    // Or, is the radius zero? Line to (x1,y1).+    else if (!(Math.abs(y01 * x21 - y21 * x01) > epsilon) || !r) {+      this._ += "L" + (this._x1 = x1) + "," + (this._y1 = y1);+    }++    // Otherwise, draw an arc!+    else {+      var x20 = x2 - x0,+          y20 = y2 - y0,+          l21_2 = x21 * x21 + y21 * y21,+          l20_2 = x20 * x20 + y20 * y20,+          l21 = Math.sqrt(l21_2),+          l01 = Math.sqrt(l01_2),+          l = r * Math.tan((pi$1 - Math.acos((l21_2 + l01_2 - l20_2) / (2 * l21 * l01))) / 2),+          t01 = l / l01,+          t21 = l / l21;++      // If the start tangent is not coincident with (x0,y0), line to.+      if (Math.abs(t01 - 1) > epsilon) {+        this._ += "L" + (x1 + t01 * x01) + "," + (y1 + t01 * y01);+      }++      this._ += "A" + r + "," + r + ",0,0," + (+(y01 * x20 > x01 * y20)) + "," + (this._x1 = x1 + t21 * x21) + "," + (this._y1 = y1 + t21 * y21);+    }+  },+  arc: function(x, y, r, a0, a1, ccw) {+    x = +x, y = +y, r = +r;+    var dx = r * Math.cos(a0),+        dy = r * Math.sin(a0),+        x0 = x + dx,+        y0 = y + dy,+        cw = 1 ^ ccw,+        da = ccw ? a0 - a1 : a1 - a0;++    // Is the radius negative? Error.+    if (r < 0) throw new Error("negative radius: " + r);++    // Is this path empty? Move to (x0,y0).+    if (this._x1 === null) {+      this._ += "M" + x0 + "," + y0;+    }++    // Or, is (x0,y0) not coincident with the previous point? Line to (x0,y0).+    else if (Math.abs(this._x1 - x0) > epsilon || Math.abs(this._y1 - y0) > epsilon) {+      this._ += "L" + x0 + "," + y0;+    }++    // Is this arc empty? We’re done.+    if (!r) return;++    // Is this a complete circle? Draw two arcs to complete the circle.+    if (da > tauEpsilon) {+      this._ += "A" + r + "," + r + ",0,1," + cw + "," + (x - dx) + "," + (y - dy) + "A" + r + "," + r + ",0,1," + cw + "," + (this._x1 = x0) + "," + (this._y1 = y0);+    }++    // Otherwise, draw an arc!+    else {+      if (da < 0) da = da % tau$1 + tau$1;+      this._ += "A" + r + "," + r + ",0," + (+(da >= pi$1)) + "," + cw + "," + (this._x1 = x + r * Math.cos(a1)) + "," + (this._y1 = y + r * Math.sin(a1));+    }+  },+  rect: function(x, y, w, h) {+    this._ += "M" + (this._x0 = this._x1 = +x) + "," + (this._y0 = this._y1 = +y) + "h" + (+w) + "v" + (+h) + "h" + (-w) + "Z";+  },+  toString: function() {+    return this._;+  }+};++var tree_add = function(d) {+  var x = +this._x.call(null, d),+      y = +this._y.call(null, d);+  return add(this.cover(x, y), x, y, d);+};++function add(tree, x, y, d) {+  if (isNaN(x) || isNaN(y)) return tree; // ignore invalid points++  var parent,+      node = tree._root,+      leaf = {data: d},+      x0 = tree._x0,+      y0 = tree._y0,+      x1 = tree._x1,+      y1 = tree._y1,+      xm,+      ym,+      xp,+      yp,+      right,+      bottom,+      i,+      j;++  // If the tree is empty, initialize the root as a leaf.+  if (!node) return tree._root = leaf, tree;++  // Find the existing leaf for the new point, or add it.+  while (node.length) {+    if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;+    if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;+    if (parent = node, !(node = node[i = bottom << 1 | right])) return parent[i] = leaf, tree;+  }++  // Is the new point is exactly coincident with the existing point?+  xp = +tree._x.call(null, node.data);+  yp = +tree._y.call(null, node.data);+  if (x === xp && y === yp) return leaf.next = node, parent ? parent[i] = leaf : tree._root = leaf, tree;++  // Otherwise, split the leaf node until the old and new point are separated.+  do {+    parent = parent ? parent[i] = new Array(4) : tree._root = new Array(4);+    if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;+    if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;+  } while ((i = bottom << 1 | right) === (j = (yp >= ym) << 1 | (xp >= xm)));+  return parent[j] = node, parent[i] = leaf, tree;+}++function addAll(data) {+  var d, i, n = data.length,+      x,+      y,+      xz = new Array(n),+      yz = new Array(n),+      x0 = Infinity,+      y0 = Infinity,+      x1 = -Infinity,+      y1 = -Infinity;++  // Compute the points and their extent.+  for (i = 0; i < n; ++i) {+    if (isNaN(x = +this._x.call(null, d = data[i])) || isNaN(y = +this._y.call(null, d))) continue;+    xz[i] = x;+    yz[i] = y;+    if (x < x0) x0 = x;+    if (x > x1) x1 = x;+    if (y < y0) y0 = y;+    if (y > y1) y1 = y;+  }++  // If there were no (valid) points, inherit the existing extent.+  if (x1 < x0) x0 = this._x0, x1 = this._x1;+  if (y1 < y0) y0 = this._y0, y1 = this._y1;++  // Expand the tree to cover the new points.+  this.cover(x0, y0).cover(x1, y1);++  // Add the new points.+  for (i = 0; i < n; ++i) {+    add(this, xz[i], yz[i], data[i]);+  }++  return this;+}++var tree_cover = function(x, y) {+  if (isNaN(x = +x) || isNaN(y = +y)) return this; // ignore invalid points++  var x0 = this._x0,+      y0 = this._y0,+      x1 = this._x1,+      y1 = this._y1;++  // If the quadtree has no extent, initialize them.+  // Integer extent are necessary so that if we later double the extent,+  // the existing quadrant boundaries don’t change due to floating point error!+  if (isNaN(x0)) {+    x1 = (x0 = Math.floor(x)) + 1;+    y1 = (y0 = Math.floor(y)) + 1;+  }++  // Otherwise, double repeatedly to cover.+  else if (x0 > x || x > x1 || y0 > y || y > y1) {+    var z = x1 - x0,+        node = this._root,+        parent,+        i;++    switch (i = (y < (y0 + y1) / 2) << 1 | (x < (x0 + x1) / 2)) {+      case 0: {+        do parent = new Array(4), parent[i] = node, node = parent;+        while (z *= 2, x1 = x0 + z, y1 = y0 + z, x > x1 || y > y1);+        break;+      }+      case 1: {+        do parent = new Array(4), parent[i] = node, node = parent;+        while (z *= 2, x0 = x1 - z, y1 = y0 + z, x0 > x || y > y1);+        break;+      }+      case 2: {+        do parent = new Array(4), parent[i] = node, node = parent;+        while (z *= 2, x1 = x0 + z, y0 = y1 - z, x > x1 || y0 > y);+        break;+      }+      case 3: {+        do parent = new Array(4), parent[i] = node, node = parent;+        while (z *= 2, x0 = x1 - z, y0 = y1 - z, x0 > x || y0 > y);+        break;+      }+    }++    if (this._root && this._root.length) this._root = node;+  }++  // If the quadtree covers the point already, just return.+  else return this;++  this._x0 = x0;+  this._y0 = y0;+  this._x1 = x1;+  this._y1 = y1;+  return this;+};++var tree_data = function() {+  var data = [];+  this.visit(function(node) {+    if (!node.length) do data.push(node.data); while (node = node.next)+  });+  return data;+};++var tree_extent = function(_) {+  return arguments.length+      ? this.cover(+_[0][0], +_[0][1]).cover(+_[1][0], +_[1][1])+      : isNaN(this._x0) ? undefined : [[this._x0, this._y0], [this._x1, this._y1]];+};++var Quad = function(node, x0, y0, x1, y1) {+  this.node = node;+  this.x0 = x0;+  this.y0 = y0;+  this.x1 = x1;+  this.y1 = y1;+};++var tree_find = function(x, y, radius) {+  var data,+      x0 = this._x0,+      y0 = this._y0,+      x1,+      y1,+      x2,+      y2,+      x3 = this._x1,+      y3 = this._y1,+      quads = [],+      node = this._root,+      q,+      i;++  if (node) quads.push(new Quad(node, x0, y0, x3, y3));+  if (radius == null) radius = Infinity;+  else {+    x0 = x - radius, y0 = y - radius;+    x3 = x + radius, y3 = y + radius;+    radius *= radius;+  }++  while (q = quads.pop()) {++    // Stop searching if this quadrant can’t contain a closer node.+    if (!(node = q.node)+        || (x1 = q.x0) > x3+        || (y1 = q.y0) > y3+        || (x2 = q.x1) < x0+        || (y2 = q.y1) < y0) continue;++    // Bisect the current quadrant.+    if (node.length) {+      var xm = (x1 + x2) / 2,+          ym = (y1 + y2) / 2;++      quads.push(+        new Quad(node[3], xm, ym, x2, y2),+        new Quad(node[2], x1, ym, xm, y2),+        new Quad(node[1], xm, y1, x2, ym),+        new Quad(node[0], x1, y1, xm, ym)+      );++      // Visit the closest quadrant first.+      if (i = (y >= ym) << 1 | (x >= xm)) {+        q = quads[quads.length - 1];+        quads[quads.length - 1] = quads[quads.length - 1 - i];+        quads[quads.length - 1 - i] = q;+      }+    }++    // Visit this point. (Visiting coincident points isn’t necessary!)+    else {+      var dx = x - +this._x.call(null, node.data),+          dy = y - +this._y.call(null, node.data),+          d2 = dx * dx + dy * dy;+      if (d2 < radius) {+        var d = Math.sqrt(radius = d2);+        x0 = x - d, y0 = y - d;+        x3 = x + d, y3 = y + d;+        data = node.data;+      }+    }+  }++  return data;+};++var tree_remove = function(d) {+  if (isNaN(x = +this._x.call(null, d)) || isNaN(y = +this._y.call(null, d))) return this; // ignore invalid points++  var parent,+      node = this._root,+      retainer,+      previous,+      next,+      x0 = this._x0,+      y0 = this._y0,+      x1 = this._x1,+      y1 = this._y1,+      x,+      y,+      xm,+      ym,+      right,+      bottom,+      i,+      j;++  // If the tree is empty, initialize the root as a leaf.+  if (!node) return this;++  // Find the leaf node for the point.+  // While descending, also retain the deepest parent with a non-removed sibling.+  if (node.length) while (true) {+    if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm;+    if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym;+    if (!(parent = node, node = node[i = bottom << 1 | right])) return this;+    if (!node.length) break;+    if (parent[(i + 1) & 3] || parent[(i + 2) & 3] || parent[(i + 3) & 3]) retainer = parent, j = i;+  }++  // Find the point to remove.+  while (node.data !== d) if (!(previous = node, node = node.next)) return this;+  if (next = node.next) delete node.next;++  // If there are multiple coincident points, remove just the point.+  if (previous) return (next ? previous.next = next : delete previous.next), this;++  // If this is the root point, remove it.+  if (!parent) return this._root = next, this;++  // Remove this leaf.+  next ? parent[i] = next : delete parent[i];++  // If the parent now contains exactly one leaf, collapse superfluous parents.+  if ((node = parent[0] || parent[1] || parent[2] || parent[3])+      && node === (parent[3] || parent[2] || parent[1] || parent[0])+      && !node.length) {+    if (retainer) retainer[j] = node;+    else this._root = node;+  }++  return this;+};++function removeAll(data) {+  for (var i = 0, n = data.length; i < n; ++i) this.remove(data[i]);+  return this;+}++var tree_root = function() {+  return this._root;+};++var tree_size = function() {+  var size = 0;+  this.visit(function(node) {+    if (!node.length) do ++size; while (node = node.next)+  });+  return size;+};++var tree_visit = function(callback) {+  var quads = [], q, node = this._root, child, x0, y0, x1, y1;+  if (node) quads.push(new Quad(node, this._x0, this._y0, this._x1, this._y1));+  while (q = quads.pop()) {+    if (!callback(node = q.node, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1) && node.length) {+      var xm = (x0 + x1) / 2, ym = (y0 + y1) / 2;+      if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1));+      if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1));+      if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym));+      if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym));+    }+  }+  return this;+};++var tree_visitAfter = function(callback) {+  var quads = [], next = [], q;+  if (this._root) quads.push(new Quad(this._root, this._x0, this._y0, this._x1, this._y1));+  while (q = quads.pop()) {+    var node = q.node;+    if (node.length) {+      var child, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1, xm = (x0 + x1) / 2, ym = (y0 + y1) / 2;+      if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym));+      if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym));+      if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1));+      if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1));+    }+    next.push(q);+  }+  while (q = next.pop()) {+    callback(q.node, q.x0, q.y0, q.x1, q.y1);+  }+  return this;+};++function defaultX(d) {+  return d[0];+}++var tree_x = function(_) {+  return arguments.length ? (this._x = _, this) : this._x;+};++function defaultY(d) {+  return d[1];+}++var tree_y = function(_) {+  return arguments.length ? (this._y = _, this) : this._y;+};++function quadtree(nodes, x, y) {+  var tree = new Quadtree(x == null ? defaultX : x, y == null ? defaultY : y, NaN, NaN, NaN, NaN);+  return nodes == null ? tree : tree.addAll(nodes);+}++function Quadtree(x, y, x0, y0, x1, y1) {+  this._x = x;+  this._y = y;+  this._x0 = x0;+  this._y0 = y0;+  this._x1 = x1;+  this._y1 = y1;+  this._root = undefined;+}++function leaf_copy(leaf) {+  var copy = {data: leaf.data}, next = copy;+  while (leaf = leaf.next) next = next.next = {data: leaf.data};+  return copy;+}++var treeProto = quadtree.prototype = Quadtree.prototype;++treeProto.copy = function() {+  var copy = new Quadtree(this._x, this._y, this._x0, this._y0, this._x1, this._y1),+      node = this._root,+      nodes,+      child;++  if (!node) return copy;++  if (!node.length) return copy._root = leaf_copy(node), copy;++  nodes = [{source: node, target: copy._root = new Array(4)}];+  while (node = nodes.pop()) {+    for (var i = 0; i < 4; ++i) {+      if (child = node.source[i]) {+        if (child.length) nodes.push({source: child, target: node.target[i] = new Array(4)});+        else node.target[i] = leaf_copy(child);+      }+    }+  }++  return copy;+};++treeProto.add = tree_add;+treeProto.addAll = addAll;+treeProto.cover = tree_cover;+treeProto.data = tree_data;+treeProto.extent = tree_extent;+treeProto.find = tree_find;+treeProto.remove = tree_remove;+treeProto.removeAll = removeAll;+treeProto.root = tree_root;+treeProto.size = tree_size;+treeProto.visit = tree_visit;+treeProto.visitAfter = tree_visitAfter;+treeProto.x = tree_x;+treeProto.y = tree_y;++var slice$1 = [].slice;++var noabort = {};++function Queue(size) {+  if (!(size >= 1)) throw new Error;+  this._size = size;+  this._call =+  this._error = null;+  this._tasks = [];+  this._data = [];+  this._waiting =+  this._active =+  this._ended =+  this._start = 0; // inside a synchronous task callback?+}++Queue.prototype = queue.prototype = {+  constructor: Queue,+  defer: function(callback) {+    if (typeof callback !== "function" || this._call) throw new Error;+    if (this._error != null) return this;+    var t = slice$1.call(arguments, 1);+    t.push(callback);+    ++this._waiting, this._tasks.push(t);+    poke(this);+    return this;+  },+  abort: function() {+    if (this._error == null) abort(this, new Error("abort"));+    return this;+  },+  await: function(callback) {+    if (typeof callback !== "function" || this._call) throw new Error;+    this._call = function(error, results) { callback.apply(null, [error].concat(results)); };+    maybeNotify(this);+    return this;+  },+  awaitAll: function(callback) {+    if (typeof callback !== "function" || this._call) throw new Error;+    this._call = callback;+    maybeNotify(this);+    return this;+  }+};++function poke(q) {+  if (!q._start) {+    try { start(q); } // let the current task complete+    catch (e) {+      if (q._tasks[q._ended + q._active - 1]) abort(q, e); // task errored synchronously+      else if (!q._data) throw e; // await callback errored synchronously+    }+  }+}++function start(q) {+  while (q._start = q._waiting && q._active < q._size) {+    var i = q._ended + q._active,+        t = q._tasks[i],+        j = t.length - 1,+        c = t[j];+    t[j] = end(q, i);+    --q._waiting, ++q._active;+    t = c.apply(null, t);+    if (!q._tasks[i]) continue; // task finished synchronously+    q._tasks[i] = t || noabort;+  }+}++function end(q, i) {+  return function(e, r) {+    if (!q._tasks[i]) return; // ignore multiple callbacks+    --q._active, ++q._ended;+    q._tasks[i] = null;+    if (q._error != null) return; // ignore secondary errors+    if (e != null) {+      abort(q, e);+    } else {+      q._data[i] = r;+      if (q._waiting) poke(q);+      else maybeNotify(q);+    }+  };+}++function abort(q, e) {+  var i = q._tasks.length, t;+  q._error = e; // ignore active callbacks+  q._data = undefined; // allow gc+  q._waiting = NaN; // prevent starting++  while (--i >= 0) {+    if (t = q._tasks[i]) {+      q._tasks[i] = null;+      if (t.abort) {+        try { t.abort(); }+        catch (e) { /* ignore */ }+      }+    }+  }++  q._active = NaN; // allow notification+  maybeNotify(q);+}++function maybeNotify(q) {+  if (!q._active && q._call) {+    var d = q._data;+    q._data = undefined; // allow gc+    q._call(q._error, d);+  }+}++function queue(concurrency) {+  return new Queue(arguments.length ? +concurrency : Infinity);+}++var constant$2 = function(x) {+  return function constant() {+    return x;+  };+};++var epsilon$1 = 1e-12;+var pi$2 = Math.PI;+var halfPi$1 = pi$2 / 2;+var tau$2 = 2 * pi$2;++function arcInnerRadius(d) {+  return d.innerRadius;+}++function arcOuterRadius(d) {+  return d.outerRadius;+}++function arcStartAngle(d) {+  return d.startAngle;+}++function arcEndAngle(d) {+  return d.endAngle;+}++function arcPadAngle(d) {+  return d && d.padAngle; // Note: optional!+}++function asin(x) {+  return x >= 1 ? halfPi$1 : x <= -1 ? -halfPi$1 : Math.asin(x);+}++function intersect(x0, y0, x1, y1, x2, y2, x3, y3) {+  var x10 = x1 - x0, y10 = y1 - y0,+      x32 = x3 - x2, y32 = y3 - y2,+      t = (x32 * (y0 - y2) - y32 * (x0 - x2)) / (y32 * x10 - x32 * y10);+  return [x0 + t * x10, y0 + t * y10];+}++// Compute perpendicular offset line of length rc.+// http://mathworld.wolfram.com/Circle-LineIntersection.html+function cornerTangents(x0, y0, x1, y1, r1, rc, cw) {+  var x01 = x0 - x1,+      y01 = y0 - y1,+      lo = (cw ? rc : -rc) / Math.sqrt(x01 * x01 + y01 * y01),+      ox = lo * y01,+      oy = -lo * x01,+      x11 = x0 + ox,+      y11 = y0 + oy,+      x10 = x1 + ox,+      y10 = y1 + oy,+      x00 = (x11 + x10) / 2,+      y00 = (y11 + y10) / 2,+      dx = x10 - x11,+      dy = y10 - y11,+      d2 = dx * dx + dy * dy,+      r = r1 - rc,+      D = x11 * y10 - x10 * y11,+      d = (dy < 0 ? -1 : 1) * Math.sqrt(Math.max(0, r * r * d2 - D * D)),+      cx0 = (D * dy - dx * d) / d2,+      cy0 = (-D * dx - dy * d) / d2,+      cx1 = (D * dy + dx * d) / d2,+      cy1 = (-D * dx + dy * d) / d2,+      dx0 = cx0 - x00,+      dy0 = cy0 - y00,+      dx1 = cx1 - x00,+      dy1 = cy1 - y00;++  // Pick the closer of the two intersection points.+  // TODO Is there a faster way to determine which intersection to use?+  if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1;++  return {+    cx: cx0,+    cy: cy0,+    x01: -ox,+    y01: -oy,+    x11: cx0 * (r1 / r - 1),+    y11: cy0 * (r1 / r - 1)+  };+}++var arc = function() {+  var innerRadius = arcInnerRadius,+      outerRadius = arcOuterRadius,+      cornerRadius = constant$2(0),+      padRadius = null,+      startAngle = arcStartAngle,+      endAngle = arcEndAngle,+      padAngle = arcPadAngle,+      context = null;++  function arc() {+    var buffer,+        r,+        r0 = +innerRadius.apply(this, arguments),+        r1 = +outerRadius.apply(this, arguments),+        a0 = startAngle.apply(this, arguments) - halfPi$1,+        a1 = endAngle.apply(this, arguments) - halfPi$1,+        da = Math.abs(a1 - a0),+        cw = a1 > a0;++    if (!context) context = buffer = path();++    // Ensure that the outer radius is always larger than the inner radius.+    if (r1 < r0) r = r1, r1 = r0, r0 = r;++    // Is it a point?+    if (!(r1 > epsilon$1)) context.moveTo(0, 0);++    // Or is it a circle or annulus?+    else if (da > tau$2 - epsilon$1) {+      context.moveTo(r1 * Math.cos(a0), r1 * Math.sin(a0));+      context.arc(0, 0, r1, a0, a1, !cw);+      if (r0 > epsilon$1) {+        context.moveTo(r0 * Math.cos(a1), r0 * Math.sin(a1));+        context.arc(0, 0, r0, a1, a0, cw);+      }+    }++    // Or is it a circular or annular sector?+    else {+      var a01 = a0,+          a11 = a1,+          a00 = a0,+          a10 = a1,+          da0 = da,+          da1 = da,+          ap = padAngle.apply(this, arguments) / 2,+          rp = (ap > epsilon$1) && (padRadius ? +padRadius.apply(this, arguments) : Math.sqrt(r0 * r0 + r1 * r1)),+          rc = Math.min(Math.abs(r1 - r0) / 2, +cornerRadius.apply(this, arguments)),+          rc0 = rc,+          rc1 = rc,+          t0,+          t1;++      // Apply padding? Note that since r1 ≥ r0, da1 ≥ da0.+      if (rp > epsilon$1) {+        var p0 = asin(rp / r0 * Math.sin(ap)),+            p1 = asin(rp / r1 * Math.sin(ap));+        if ((da0 -= p0 * 2) > epsilon$1) p0 *= (cw ? 1 : -1), a00 += p0, a10 -= p0;+        else da0 = 0, a00 = a10 = (a0 + a1) / 2;+        if ((da1 -= p1 * 2) > epsilon$1) p1 *= (cw ? 1 : -1), a01 += p1, a11 -= p1;+        else da1 = 0, a01 = a11 = (a0 + a1) / 2;+      }++      var x01 = r1 * Math.cos(a01),+          y01 = r1 * Math.sin(a01),+          x10 = r0 * Math.cos(a10),+          y10 = r0 * Math.sin(a10);++      // Apply rounded corners?+      if (rc > epsilon$1) {+        var x11 = r1 * Math.cos(a11),+            y11 = r1 * Math.sin(a11),+            x00 = r0 * Math.cos(a00),+            y00 = r0 * Math.sin(a00);++        // Restrict the corner radius according to the sector angle.+        if (da < pi$2) {+          var oc = da0 > epsilon$1 ? intersect(x01, y01, x00, y00, x11, y11, x10, y10) : [x10, y10],+              ax = x01 - oc[0],+              ay = y01 - oc[1],+              bx = x11 - oc[0],+              by = y11 - oc[1],+              kc = 1 / Math.sin(Math.acos((ax * bx + ay * by) / (Math.sqrt(ax * ax + ay * ay) * Math.sqrt(bx * bx + by * by))) / 2),+              lc = Math.sqrt(oc[0] * oc[0] + oc[1] * oc[1]);+          rc0 = Math.min(rc, (r0 - lc) / (kc - 1));+          rc1 = Math.min(rc, (r1 - lc) / (kc + 1));+        }+      }++      // Is the sector collapsed to a line?+      if (!(da1 > epsilon$1)) context.moveTo(x01, y01);++      // Does the sector’s outer ring have rounded corners?+      else if (rc1 > epsilon$1) {+        t0 = cornerTangents(x00, y00, x01, y01, r1, rc1, cw);+        t1 = cornerTangents(x11, y11, x10, y10, r1, rc1, cw);++        context.moveTo(t0.cx + t0.x01, t0.cy + t0.y01);++        // Have the corners merged?+        if (rc1 < rc) context.arc(t0.cx, t0.cy, rc1, Math.atan2(t0.y01, t0.x01), Math.atan2(t1.y01, t1.x01), !cw);++        // Otherwise, draw the two corners and the ring.+        else {+          context.arc(t0.cx, t0.cy, rc1, Math.atan2(t0.y01, t0.x01), Math.atan2(t0.y11, t0.x11), !cw);+          context.arc(0, 0, r1, Math.atan2(t0.cy + t0.y11, t0.cx + t0.x11), Math.atan2(t1.cy + t1.y11, t1.cx + t1.x11), !cw);+          context.arc(t1.cx, t1.cy, rc1, Math.atan2(t1.y11, t1.x11), Math.atan2(t1.y01, t1.x01), !cw);+        }+      }++      // Or is the outer ring just a circular arc?+      else context.moveTo(x01, y01), context.arc(0, 0, r1, a01, a11, !cw);++      // Is there no inner ring, and it’s a circular sector?+      // Or perhaps it’s an annular sector collapsed due to padding?+      if (!(r0 > epsilon$1) || !(da0 > epsilon$1)) context.lineTo(x10, y10);++      // Does the sector’s inner ring (or point) have rounded corners?+      else if (rc0 > epsilon$1) {+        t0 = cornerTangents(x10, y10, x11, y11, r0, -rc0, cw);+        t1 = cornerTangents(x01, y01, x00, y00, r0, -rc0, cw);++        context.lineTo(t0.cx + t0.x01, t0.cy + t0.y01);++        // Have the corners merged?+        if (rc0 < rc) context.arc(t0.cx, t0.cy, rc0, Math.atan2(t0.y01, t0.x01), Math.atan2(t1.y01, t1.x01), !cw);++        // Otherwise, draw the two corners and the ring.+        else {+          context.arc(t0.cx, t0.cy, rc0, Math.atan2(t0.y01, t0.x01), Math.atan2(t0.y11, t0.x11), !cw);+          context.arc(0, 0, r0, Math.atan2(t0.cy + t0.y11, t0.cx + t0.x11), Math.atan2(t1.cy + t1.y11, t1.cx + t1.x11), cw);+          context.arc(t1.cx, t1.cy, rc0, Math.atan2(t1.y11, t1.x11), Math.atan2(t1.y01, t1.x01), !cw);+        }+      }++      // Or is the inner ring just a circular arc?+      else context.arc(0, 0, r0, a10, a00, cw);+    }++    context.closePath();++    if (buffer) return context = null, buffer + "" || null;+  }++  arc.centroid = function() {+    var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2,+        a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - pi$2 / 2;+    return [Math.cos(a) * r, Math.sin(a) * r];+  };++  arc.innerRadius = function(_) {+    return arguments.length ? (innerRadius = typeof _ === "function" ? _ : constant$2(+_), arc) : innerRadius;+  };++  arc.outerRadius = function(_) {+    return arguments.length ? (outerRadius = typeof _ === "function" ? _ : constant$2(+_), arc) : outerRadius;+  };++  arc.cornerRadius = function(_) {+    return arguments.length ? (cornerRadius = typeof _ === "function" ? _ : constant$2(+_), arc) : cornerRadius;+  };++  arc.padRadius = function(_) {+    return arguments.length ? (padRadius = _ == null ? null : typeof _ === "function" ? _ : constant$2(+_), arc) : padRadius;+  };++  arc.startAngle = function(_) {+    return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$2(+_), arc) : startAngle;+  };++  arc.endAngle = function(_) {+    return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$2(+_), arc) : endAngle;+  };++  arc.padAngle = function(_) {+    return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$2(+_), arc) : padAngle;+  };++  arc.context = function(_) {+    return arguments.length ? ((context = _ == null ? null : _), arc) : context;+  };++  return arc;+};++function Linear(context) {+  this._context = context;+}++Linear.prototype = {+  areaStart: function() {+    this._line = 0;+  },+  areaEnd: function() {+    this._line = NaN;+  },+  lineStart: function() {+    this._point = 0;+  },+  lineEnd: function() {+    if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();+    this._line = 1 - this._line;+  },+  point: function(x, y) {+    x = +x, y = +y;+    switch (this._point) {+      case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;+      case 1: this._point = 2; // proceed+      default: this._context.lineTo(x, y); break;+    }+  }+};++var curveLinear = function(context) {+  return new Linear(context);+};++function x(p) {+  return p[0];+}++function y(p) {+  return p[1];+}++var line = function() {+  var x$$1 = x,+      y$$1 = y,+      defined = constant$2(true),+      context = null,+      curve = curveLinear,+      output = null;++  function line(data) {+    var i,+        n = data.length,+        d,+        defined0 = false,+        buffer;++    if (context == null) output = curve(buffer = path());++    for (i = 0; i <= n; ++i) {+      if (!(i < n && defined(d = data[i], i, data)) === defined0) {+        if (defined0 = !defined0) output.lineStart();+        else output.lineEnd();+      }+      if (defined0) output.point(+x$$1(d, i, data), +y$$1(d, i, data));+    }++    if (buffer) return output = null, buffer + "" || null;+  }++  line.x = function(_) {+    return arguments.length ? (x$$1 = typeof _ === "function" ? _ : constant$2(+_), line) : x$$1;+  };++  line.y = function(_) {+    return arguments.length ? (y$$1 = typeof _ === "function" ? _ : constant$2(+_), line) : y$$1;+  };++  line.defined = function(_) {+    return arguments.length ? (defined = typeof _ === "function" ? _ : constant$2(!!_), line) : defined;+  };++  line.curve = function(_) {+    return arguments.length ? (curve = _, context != null && (output = curve(context)), line) : curve;+  };++  line.context = function(_) {+    return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), line) : context;+  };++  return line;+};++var area$1 = function() {+  var x0 = x,+      x1 = null,+      y0 = constant$2(0),+      y1 = y,+      defined = constant$2(true),+      context = null,+      curve = curveLinear,+      output = null;++  function area(data) {+    var i,+        j,+        k,+        n = data.length,+        d,+        defined0 = false,+        buffer,+        x0z = new Array(n),+        y0z = new Array(n);++    if (context == null) output = curve(buffer = path());++    for (i = 0; i <= n; ++i) {+      if (!(i < n && defined(d = data[i], i, data)) === defined0) {+        if (defined0 = !defined0) {+          j = i;+          output.areaStart();+          output.lineStart();+        } else {+          output.lineEnd();+          output.lineStart();+          for (k = i - 1; k >= j; --k) {+            output.point(x0z[k], y0z[k]);+          }+          output.lineEnd();+          output.areaEnd();+        }+      }+      if (defined0) {+        x0z[i] = +x0(d, i, data), y0z[i] = +y0(d, i, data);+        output.point(x1 ? +x1(d, i, data) : x0z[i], y1 ? +y1(d, i, data) : y0z[i]);+      }+    }++    if (buffer) return output = null, buffer + "" || null;+  }++  function arealine() {+    return line().defined(defined).curve(curve).context(context);+  }++  area.x = function(_) {+    return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$2(+_), x1 = null, area) : x0;+  };++  area.x0 = function(_) {+    return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$2(+_), area) : x0;+  };++  area.x1 = function(_) {+    return arguments.length ? (x1 = _ == null ? null : typeof _ === "function" ? _ : constant$2(+_), area) : x1;+  };++  area.y = function(_) {+    return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$2(+_), y1 = null, area) : y0;+  };++  area.y0 = function(_) {+    return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$2(+_), area) : y0;+  };++  area.y1 = function(_) {+    return arguments.length ? (y1 = _ == null ? null : typeof _ === "function" ? _ : constant$2(+_), area) : y1;+  };++  area.lineX0 =+  area.lineY0 = function() {+    return arealine().x(x0).y(y0);+  };++  area.lineY1 = function() {+    return arealine().x(x0).y(y1);+  };++  area.lineX1 = function() {+    return arealine().x(x1).y(y0);+  };++  area.defined = function(_) {+    return arguments.length ? (defined = typeof _ === "function" ? _ : constant$2(!!_), area) : defined;+  };++  area.curve = function(_) {+    return arguments.length ? (curve = _, context != null && (output = curve(context)), area) : curve;+  };++  area.context = function(_) {+    return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), area) : context;+  };++  return area;+};++var descending$1 = function(a, b) {+  return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;+};++var identity$1 = function(d) {+  return d;+};++var pie = function() {+  var value = identity$1,+      sortValues = descending$1,+      sort = null,+      startAngle = constant$2(0),+      endAngle = constant$2(tau$2),+      padAngle = constant$2(0);++  function pie(data) {+    var i,+        n = data.length,+        j,+        k,+        sum = 0,+        index = new Array(n),+        arcs = new Array(n),+        a0 = +startAngle.apply(this, arguments),+        da = Math.min(tau$2, Math.max(-tau$2, endAngle.apply(this, arguments) - a0)),+        a1,+        p = Math.min(Math.abs(da) / n, padAngle.apply(this, arguments)),+        pa = p * (da < 0 ? -1 : 1),+        v;++    for (i = 0; i < n; ++i) {+      if ((v = arcs[index[i] = i] = +value(data[i], i, data)) > 0) {+        sum += v;+      }+    }++    // Optionally sort the arcs by previously-computed values or by data.+    if (sortValues != null) index.sort(function(i, j) { return sortValues(arcs[i], arcs[j]); });+    else if (sort != null) index.sort(function(i, j) { return sort(data[i], data[j]); });++    // Compute the arcs! They are stored in the original data's order.+    for (i = 0, k = sum ? (da - n * pa) / sum : 0; i < n; ++i, a0 = a1) {+      j = index[i], v = arcs[j], a1 = a0 + (v > 0 ? v * k : 0) + pa, arcs[j] = {+        data: data[j],+        index: i,+        value: v,+        startAngle: a0,+        endAngle: a1,+        padAngle: p+      };+    }++    return arcs;+  }++  pie.value = function(_) {+    return arguments.length ? (value = typeof _ === "function" ? _ : constant$2(+_), pie) : value;+  };++  pie.sortValues = function(_) {+    return arguments.length ? (sortValues = _, sort = null, pie) : sortValues;+  };++  pie.sort = function(_) {+    return arguments.length ? (sort = _, sortValues = null, pie) : sort;+  };++  pie.startAngle = function(_) {+    return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$2(+_), pie) : startAngle;+  };++  pie.endAngle = function(_) {+    return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$2(+_), pie) : endAngle;+  };++  pie.padAngle = function(_) {+    return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$2(+_), pie) : padAngle;+  };++  return pie;+};++var curveRadialLinear = curveRadial(curveLinear);++function Radial(curve) {+  this._curve = curve;+}++Radial.prototype = {+  areaStart: function() {+    this._curve.areaStart();+  },+  areaEnd: function() {+    this._curve.areaEnd();+  },+  lineStart: function() {+    this._curve.lineStart();+  },+  lineEnd: function() {+    this._curve.lineEnd();+  },+  point: function(a, r) {+    this._curve.point(r * Math.sin(a), r * -Math.cos(a));+  }+};++function curveRadial(curve) {++  function radial(context) {+    return new Radial(curve(context));+  }++  radial._curve = curve;++  return radial;+}++function radialLine(l) {+  var c = l.curve;++  l.angle = l.x, delete l.x;+  l.radius = l.y, delete l.y;++  l.curve = function(_) {+    return arguments.length ? c(curveRadial(_)) : c()._curve;+  };++  return l;+}++var radialLine$1 = function() {+  return radialLine(line().curve(curveRadialLinear));+};++var radialArea = function() {+  var a = area$1().curve(curveRadialLinear),+      c = a.curve,+      x0 = a.lineX0,+      x1 = a.lineX1,+      y0 = a.lineY0,+      y1 = a.lineY1;++  a.angle = a.x, delete a.x;+  a.startAngle = a.x0, delete a.x0;+  a.endAngle = a.x1, delete a.x1;+  a.radius = a.y, delete a.y;+  a.innerRadius = a.y0, delete a.y0;+  a.outerRadius = a.y1, delete a.y1;+  a.lineStartAngle = function() { return radialLine(x0()); }, delete a.lineX0;+  a.lineEndAngle = function() { return radialLine(x1()); }, delete a.lineX1;+  a.lineInnerRadius = function() { return radialLine(y0()); }, delete a.lineY0;+  a.lineOuterRadius = function() { return radialLine(y1()); }, delete a.lineY1;++  a.curve = function(_) {+    return arguments.length ? c(curveRadial(_)) : c()._curve;+  };++  return a;+};++var circle = {+  draw: function(context, size) {+    var r = Math.sqrt(size / pi$2);+    context.moveTo(r, 0);+    context.arc(0, 0, r, 0, tau$2);+  }+};++var cross$1 = {+  draw: function(context, size) {+    var r = Math.sqrt(size / 5) / 2;+    context.moveTo(-3 * r, -r);+    context.lineTo(-r, -r);+    context.lineTo(-r, -3 * r);+    context.lineTo(r, -3 * r);+    context.lineTo(r, -r);+    context.lineTo(3 * r, -r);+    context.lineTo(3 * r, r);+    context.lineTo(r, r);+    context.lineTo(r, 3 * r);+    context.lineTo(-r, 3 * r);+    context.lineTo(-r, r);+    context.lineTo(-3 * r, r);+    context.closePath();+  }+};++var tan30 = Math.sqrt(1 / 3);+var tan30_2 = tan30 * 2;++var diamond = {+  draw: function(context, size) {+    var y = Math.sqrt(size / tan30_2),+        x = y * tan30;+    context.moveTo(0, -y);+    context.lineTo(x, 0);+    context.lineTo(0, y);+    context.lineTo(-x, 0);+    context.closePath();+  }+};++var ka = 0.89081309152928522810;+var kr = Math.sin(pi$2 / 10) / Math.sin(7 * pi$2 / 10);+var kx = Math.sin(tau$2 / 10) * kr;+var ky = -Math.cos(tau$2 / 10) * kr;++var star = {+  draw: function(context, size) {+    var r = Math.sqrt(size * ka),+        x = kx * r,+        y = ky * r;+    context.moveTo(0, -r);+    context.lineTo(x, y);+    for (var i = 1; i < 5; ++i) {+      var a = tau$2 * i / 5,+          c = Math.cos(a),+          s = Math.sin(a);+      context.lineTo(s * r, -c * r);+      context.lineTo(c * x - s * y, s * x + c * y);+    }+    context.closePath();+  }+};++var square = {+  draw: function(context, size) {+    var w = Math.sqrt(size),+        x = -w / 2;+    context.rect(x, x, w, w);+  }+};++var sqrt3 = Math.sqrt(3);++var triangle = {+  draw: function(context, size) {+    var y = -Math.sqrt(size / (sqrt3 * 3));+    context.moveTo(0, y * 2);+    context.lineTo(-sqrt3 * y, -y);+    context.lineTo(sqrt3 * y, -y);+    context.closePath();+  }+};++var c = -0.5;+var s = Math.sqrt(3) / 2;+var k = 1 / Math.sqrt(12);+var a = (k / 2 + 1) * 3;++var wye = {+  draw: function(context, size) {+    var r = Math.sqrt(size / a),+        x0 = r / 2,+        y0 = r * k,+        x1 = x0,+        y1 = r * k + r,+        x2 = -x1,+        y2 = y1;+    context.moveTo(x0, y0);+    context.lineTo(x1, y1);+    context.lineTo(x2, y2);+    context.lineTo(c * x0 - s * y0, s * x0 + c * y0);+    context.lineTo(c * x1 - s * y1, s * x1 + c * y1);+    context.lineTo(c * x2 - s * y2, s * x2 + c * y2);+    context.lineTo(c * x0 + s * y0, c * y0 - s * x0);+    context.lineTo(c * x1 + s * y1, c * y1 - s * x1);+    context.lineTo(c * x2 + s * y2, c * y2 - s * x2);+    context.closePath();+  }+};++var symbols = [+  circle,+  cross$1,+  diamond,+  square,+  star,+  triangle,+  wye+];++var symbol = function() {+  var type = constant$2(circle),+      size = constant$2(64),+      context = null;++  function symbol() {+    var buffer;+    if (!context) context = buffer = path();+    type.apply(this, arguments).draw(context, +size.apply(this, arguments));+    if (buffer) return context = null, buffer + "" || null;+  }++  symbol.type = function(_) {+    return arguments.length ? (type = typeof _ === "function" ? _ : constant$2(_), symbol) : type;+  };++  symbol.size = function(_) {+    return arguments.length ? (size = typeof _ === "function" ? _ : constant$2(+_), symbol) : size;+  };++  symbol.context = function(_) {+    return arguments.length ? (context = _ == null ? null : _, symbol) : context;+  };++  return symbol;+};++var noop = function() {};++function point(that, x, y) {+  that._context.bezierCurveTo(+    (2 * that._x0 + that._x1) / 3,+    (2 * that._y0 + that._y1) / 3,+    (that._x0 + 2 * that._x1) / 3,+    (that._y0 + 2 * that._y1) / 3,+    (that._x0 + 4 * that._x1 + x) / 6,+    (that._y0 + 4 * that._y1 + y) / 6+  );+}++function Basis(context) {+  this._context = context;+}++Basis.prototype = {+  areaStart: function() {+    this._line = 0;+  },+  areaEnd: function() {+    this._line = NaN;+  },+  lineStart: function() {+    this._x0 = this._x1 =+    this._y0 = this._y1 = NaN;+    this._point = 0;+  },+  lineEnd: function() {+    switch (this._point) {+      case 3: point(this, this._x1, this._y1); // proceed+      case 2: this._context.lineTo(this._x1, this._y1); break;+    }+    if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();+    this._line = 1 - this._line;+  },+  point: function(x, y) {+    x = +x, y = +y;+    switch (this._point) {+      case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;+      case 1: this._point = 2; break;+      case 2: this._point = 3; this._context.lineTo((5 * this._x0 + this._x1) / 6, (5 * this._y0 + this._y1) / 6); // proceed+      default: point(this, x, y); break;+    }+    this._x0 = this._x1, this._x1 = x;+    this._y0 = this._y1, this._y1 = y;+  }+};++var basis = function(context) {+  return new Basis(context);+};++function BasisClosed(context) {+  this._context = context;+}++BasisClosed.prototype = {+  areaStart: noop,+  areaEnd: noop,+  lineStart: function() {+    this._x0 = this._x1 = this._x2 = this._x3 = this._x4 =+    this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = NaN;+    this._point = 0;+  },+  lineEnd: function() {+    switch (this._point) {+      case 1: {+        this._context.moveTo(this._x2, this._y2);+        this._context.closePath();+        break;+      }+      case 2: {+        this._context.moveTo((this._x2 + 2 * this._x3) / 3, (this._y2 + 2 * this._y3) / 3);+        this._context.lineTo((this._x3 + 2 * this._x2) / 3, (this._y3 + 2 * this._y2) / 3);+        this._context.closePath();+        break;+      }+      case 3: {+        this.point(this._x2, this._y2);+        this.point(this._x3, this._y3);+        this.point(this._x4, this._y4);+        break;+      }+    }+  },+  point: function(x, y) {+    x = +x, y = +y;+    switch (this._point) {+      case 0: this._point = 1; this._x2 = x, this._y2 = y; break;+      case 1: this._point = 2; this._x3 = x, this._y3 = y; break;+      case 2: this._point = 3; this._x4 = x, this._y4 = y; this._context.moveTo((this._x0 + 4 * this._x1 + x) / 6, (this._y0 + 4 * this._y1 + y) / 6); break;+      default: point(this, x, y); break;+    }+    this._x0 = this._x1, this._x1 = x;+    this._y0 = this._y1, this._y1 = y;+  }+};++var basisClosed = function(context) {+  return new BasisClosed(context);+};++function BasisOpen(context) {+  this._context = context;+}++BasisOpen.prototype = {+  areaStart: function() {+    this._line = 0;+  },+  areaEnd: function() {+    this._line = NaN;+  },+  lineStart: function() {+    this._x0 = this._x1 =+    this._y0 = this._y1 = NaN;+    this._point = 0;+  },+  lineEnd: function() {+    if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath();+    this._line = 1 - this._line;+  },+  point: function(x, y) {+    x = +x, y = +y;+    switch (this._point) {+      case 0: this._point = 1; break;+      case 1: this._point = 2; break;+      case 2: this._point = 3; var x0 = (this._x0 + 4 * this._x1 + x) / 6, y0 = (this._y0 + 4 * this._y1 + y) / 6; this._line ? this._context.lineTo(x0, y0) : this._context.moveTo(x0, y0); break;+      case 3: this._point = 4; // proceed+      default: point(this, x, y); break;+    }+    this._x0 = this._x1, this._x1 = x;+    this._y0 = this._y1, this._y1 = y;+  }+};++var basisOpen = function(context) {+  return new BasisOpen(context);+};++function Bundle(context, beta) {+  this._basis = new Basis(context);+  this._beta = beta;+}++Bundle.prototype = {+  lineStart: function() {+    this._x = [];+    this._y = [];+    this._basis.lineStart();+  },+  lineEnd: function() {+    var x = this._x,+        y = this._y,+        j = x.length - 1;++    if (j > 0) {+      var x0 = x[0],+          y0 = y[0],+          dx = x[j] - x0,+          dy = y[j] - y0,+          i = -1,+          t;++      while (++i <= j) {+        t = i / j;+        this._basis.point(+          this._beta * x[i] + (1 - this._beta) * (x0 + t * dx),+          this._beta * y[i] + (1 - this._beta) * (y0 + t * dy)+        );+      }+    }++    this._x = this._y = null;+    this._basis.lineEnd();+  },+  point: function(x, y) {+    this._x.push(+x);+    this._y.push(+y);+  }+};++var bundle = (function custom(beta) {++  function bundle(context) {+    return beta === 1 ? new Basis(context) : new Bundle(context, beta);+  }++  bundle.beta = function(beta) {+    return custom(+beta);+  };++  return bundle;+})(0.85);++function point$1(that, x, y) {+  that._context.bezierCurveTo(+    that._x1 + that._k * (that._x2 - that._x0),+    that._y1 + that._k * (that._y2 - that._y0),+    that._x2 + that._k * (that._x1 - x),+    that._y2 + that._k * (that._y1 - y),+    that._x2,+    that._y2+  );+}++function Cardinal(context, tension) {+  this._context = context;+  this._k = (1 - tension) / 6;+}++Cardinal.prototype = {+  areaStart: function() {+    this._line = 0;+  },+  areaEnd: function() {+    this._line = NaN;+  },+  lineStart: function() {+    this._x0 = this._x1 = this._x2 =+    this._y0 = this._y1 = this._y2 = NaN;+    this._point = 0;+  },+  lineEnd: function() {+    switch (this._point) {+      case 2: this._context.lineTo(this._x2, this._y2); break;+      case 3: point$1(this, this._x1, this._y1); break;+    }+    if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();+    this._line = 1 - this._line;+  },+  point: function(x, y) {+    x = +x, y = +y;+    switch (this._point) {+      case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;+      case 1: this._point = 2; this._x1 = x, this._y1 = y; break;+      case 2: this._point = 3; // proceed+      default: point$1(this, x, y); break;+    }+    this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;+    this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;+  }+};++var cardinal = (function custom(tension) {++  function cardinal(context) {+    return new Cardinal(context, tension);+  }++  cardinal.tension = function(tension) {+    return custom(+tension);+  };++  return cardinal;+})(0);++function CardinalClosed(context, tension) {+  this._context = context;+  this._k = (1 - tension) / 6;+}++CardinalClosed.prototype = {+  areaStart: noop,+  areaEnd: noop,+  lineStart: function() {+    this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 =+    this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN;+    this._point = 0;+  },+  lineEnd: function() {+    switch (this._point) {+      case 1: {+        this._context.moveTo(this._x3, this._y3);+        this._context.closePath();+        break;+      }+      case 2: {+        this._context.lineTo(this._x3, this._y3);+        this._context.closePath();+        break;+      }+      case 3: {+        this.point(this._x3, this._y3);+        this.point(this._x4, this._y4);+        this.point(this._x5, this._y5);+        break;+      }+    }+  },+  point: function(x, y) {+    x = +x, y = +y;+    switch (this._point) {+      case 0: this._point = 1; this._x3 = x, this._y3 = y; break;+      case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break;+      case 2: this._point = 3; this._x5 = x, this._y5 = y; break;+      default: point$1(this, x, y); break;+    }+    this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;+    this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;+  }+};++var cardinalClosed = (function custom(tension) {++  function cardinal(context) {+    return new CardinalClosed(context, tension);+  }++  cardinal.tension = function(tension) {+    return custom(+tension);+  };++  return cardinal;+})(0);++function CardinalOpen(context, tension) {+  this._context = context;+  this._k = (1 - tension) / 6;+}++CardinalOpen.prototype = {+  areaStart: function() {+    this._line = 0;+  },+  areaEnd: function() {+    this._line = NaN;+  },+  lineStart: function() {+    this._x0 = this._x1 = this._x2 =+    this._y0 = this._y1 = this._y2 = NaN;+    this._point = 0;+  },+  lineEnd: function() {+    if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath();+    this._line = 1 - this._line;+  },+  point: function(x, y) {+    x = +x, y = +y;+    switch (this._point) {+      case 0: this._point = 1; break;+      case 1: this._point = 2; break;+      case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break;+      case 3: this._point = 4; // proceed+      default: point$1(this, x, y); break;+    }+    this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;+    this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;+  }+};++var cardinalOpen = (function custom(tension) {++  function cardinal(context) {+    return new CardinalOpen(context, tension);+  }++  cardinal.tension = function(tension) {+    return custom(+tension);+  };++  return cardinal;+})(0);++function point$2(that, x, y) {+  var x1 = that._x1,+      y1 = that._y1,+      x2 = that._x2,+      y2 = that._y2;++  if (that._l01_a > epsilon$1) {+    var a = 2 * that._l01_2a + 3 * that._l01_a * that._l12_a + that._l12_2a,+        n = 3 * that._l01_a * (that._l01_a + that._l12_a);+    x1 = (x1 * a - that._x0 * that._l12_2a + that._x2 * that._l01_2a) / n;+    y1 = (y1 * a - that._y0 * that._l12_2a + that._y2 * that._l01_2a) / n;+  }++  if (that._l23_a > epsilon$1) {+    var b = 2 * that._l23_2a + 3 * that._l23_a * that._l12_a + that._l12_2a,+        m = 3 * that._l23_a * (that._l23_a + that._l12_a);+    x2 = (x2 * b + that._x1 * that._l23_2a - x * that._l12_2a) / m;+    y2 = (y2 * b + that._y1 * that._l23_2a - y * that._l12_2a) / m;+  }++  that._context.bezierCurveTo(x1, y1, x2, y2, that._x2, that._y2);+}++function CatmullRom(context, alpha) {+  this._context = context;+  this._alpha = alpha;+}++CatmullRom.prototype = {+  areaStart: function() {+    this._line = 0;+  },+  areaEnd: function() {+    this._line = NaN;+  },+  lineStart: function() {+    this._x0 = this._x1 = this._x2 =+    this._y0 = this._y1 = this._y2 = NaN;+    this._l01_a = this._l12_a = this._l23_a =+    this._l01_2a = this._l12_2a = this._l23_2a =+    this._point = 0;+  },+  lineEnd: function() {+    switch (this._point) {+      case 2: this._context.lineTo(this._x2, this._y2); break;+      case 3: this.point(this._x2, this._y2); break;+    }+    if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();+    this._line = 1 - this._line;+  },+  point: function(x, y) {+    x = +x, y = +y;++    if (this._point) {+      var x23 = this._x2 - x,+          y23 = this._y2 - y;+      this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));+    }++    switch (this._point) {+      case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;+      case 1: this._point = 2; break;+      case 2: this._point = 3; // proceed+      default: point$2(this, x, y); break;+    }++    this._l01_a = this._l12_a, this._l12_a = this._l23_a;+    this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;+    this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;+    this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;+  }+};++var catmullRom = (function custom(alpha) {++  function catmullRom(context) {+    return alpha ? new CatmullRom(context, alpha) : new Cardinal(context, 0);+  }++  catmullRom.alpha = function(alpha) {+    return custom(+alpha);+  };++  return catmullRom;+})(0.5);++function CatmullRomClosed(context, alpha) {+  this._context = context;+  this._alpha = alpha;+}++CatmullRomClosed.prototype = {+  areaStart: noop,+  areaEnd: noop,+  lineStart: function() {+    this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 =+    this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN;+    this._l01_a = this._l12_a = this._l23_a =+    this._l01_2a = this._l12_2a = this._l23_2a =+    this._point = 0;+  },+  lineEnd: function() {+    switch (this._point) {+      case 1: {+        this._context.moveTo(this._x3, this._y3);+        this._context.closePath();+        break;+      }+      case 2: {+        this._context.lineTo(this._x3, this._y3);+        this._context.closePath();+        break;+      }+      case 3: {+        this.point(this._x3, this._y3);+        this.point(this._x4, this._y4);+        this.point(this._x5, this._y5);+        break;+      }+    }+  },+  point: function(x, y) {+    x = +x, y = +y;++    if (this._point) {+      var x23 = this._x2 - x,+          y23 = this._y2 - y;+      this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));+    }++    switch (this._point) {+      case 0: this._point = 1; this._x3 = x, this._y3 = y; break;+      case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break;+      case 2: this._point = 3; this._x5 = x, this._y5 = y; break;+      default: point$2(this, x, y); break;+    }++    this._l01_a = this._l12_a, this._l12_a = this._l23_a;+    this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;+    this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;+    this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;+  }+};++var catmullRomClosed = (function custom(alpha) {++  function catmullRom(context) {+    return alpha ? new CatmullRomClosed(context, alpha) : new CardinalClosed(context, 0);+  }++  catmullRom.alpha = function(alpha) {+    return custom(+alpha);+  };++  return catmullRom;+})(0.5);++function CatmullRomOpen(context, alpha) {+  this._context = context;+  this._alpha = alpha;+}++CatmullRomOpen.prototype = {+  areaStart: function() {+    this._line = 0;+  },+  areaEnd: function() {+    this._line = NaN;+  },+  lineStart: function() {+    this._x0 = this._x1 = this._x2 =+    this._y0 = this._y1 = this._y2 = NaN;+    this._l01_a = this._l12_a = this._l23_a =+    this._l01_2a = this._l12_2a = this._l23_2a =+    this._point = 0;+  },+  lineEnd: function() {+    if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath();+    this._line = 1 - this._line;+  },+  point: function(x, y) {+    x = +x, y = +y;++    if (this._point) {+      var x23 = this._x2 - x,+          y23 = this._y2 - y;+      this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));+    }++    switch (this._point) {+      case 0: this._point = 1; break;+      case 1: this._point = 2; break;+      case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break;+      case 3: this._point = 4; // proceed+      default: point$2(this, x, y); break;+    }++    this._l01_a = this._l12_a, this._l12_a = this._l23_a;+    this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;+    this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;+    this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;+  }+};++var catmullRomOpen = (function custom(alpha) {++  function catmullRom(context) {+    return alpha ? new CatmullRomOpen(context, alpha) : new CardinalOpen(context, 0);+  }++  catmullRom.alpha = function(alpha) {+    return custom(+alpha);+  };++  return catmullRom;+})(0.5);++function LinearClosed(context) {+  this._context = context;+}++LinearClosed.prototype = {+  areaStart: noop,+  areaEnd: noop,+  lineStart: function() {+    this._point = 0;+  },+  lineEnd: function() {+    if (this._point) this._context.closePath();+  },+  point: function(x, y) {+    x = +x, y = +y;+    if (this._point) this._context.lineTo(x, y);+    else this._point = 1, this._context.moveTo(x, y);+  }+};++var linearClosed = function(context) {+  return new LinearClosed(context);+};++function sign(x) {+  return x < 0 ? -1 : 1;+}++// Calculate the slopes of the tangents (Hermite-type interpolation) based on+// the following paper: Steffen, M. 1990. A Simple Method for Monotonic+// Interpolation in One Dimension. Astronomy and Astrophysics, Vol. 239, NO.+// NOV(II), P. 443, 1990.+function slope3(that, x2, y2) {+  var h0 = that._x1 - that._x0,+      h1 = x2 - that._x1,+      s0 = (that._y1 - that._y0) / (h0 || h1 < 0 && -0),+      s1 = (y2 - that._y1) / (h1 || h0 < 0 && -0),+      p = (s0 * h1 + s1 * h0) / (h0 + h1);+  return (sign(s0) + sign(s1)) * Math.min(Math.abs(s0), Math.abs(s1), 0.5 * Math.abs(p)) || 0;+}++// Calculate a one-sided slope.+function slope2(that, t) {+  var h = that._x1 - that._x0;+  return h ? (3 * (that._y1 - that._y0) / h - t) / 2 : t;+}++// According to https://en.wikipedia.org/wiki/Cubic_Hermite_spline#Representations+// "you can express cubic Hermite interpolation in terms of cubic Bézier curves+// with respect to the four values p0, p0 + m0 / 3, p1 - m1 / 3, p1".+function point$3(that, t0, t1) {+  var x0 = that._x0,+      y0 = that._y0,+      x1 = that._x1,+      y1 = that._y1,+      dx = (x1 - x0) / 3;+  that._context.bezierCurveTo(x0 + dx, y0 + dx * t0, x1 - dx, y1 - dx * t1, x1, y1);+}++function MonotoneX(context) {+  this._context = context;+}++MonotoneX.prototype = {+  areaStart: function() {+    this._line = 0;+  },+  areaEnd: function() {+    this._line = NaN;+  },+  lineStart: function() {+    this._x0 = this._x1 =+    this._y0 = this._y1 =+    this._t0 = NaN;+    this._point = 0;+  },+  lineEnd: function() {+    switch (this._point) {+      case 2: this._context.lineTo(this._x1, this._y1); break;+      case 3: point$3(this, this._t0, slope2(this, this._t0)); break;+    }+    if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();+    this._line = 1 - this._line;+  },+  point: function(x, y) {+    var t1 = NaN;++    x = +x, y = +y;+    if (x === this._x1 && y === this._y1) return; // Ignore coincident points.+    switch (this._point) {+      case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;+      case 1: this._point = 2; break;+      case 2: this._point = 3; point$3(this, slope2(this, t1 = slope3(this, x, y)), t1); break;+      default: point$3(this, this._t0, t1 = slope3(this, x, y)); break;+    }++    this._x0 = this._x1, this._x1 = x;+    this._y0 = this._y1, this._y1 = y;+    this._t0 = t1;+  }+};++function MonotoneY(context) {+  this._context = new ReflectContext(context);+}++(MonotoneY.prototype = Object.create(MonotoneX.prototype)).point = function(x, y) {+  MonotoneX.prototype.point.call(this, y, x);+};++function ReflectContext(context) {+  this._context = context;+}++ReflectContext.prototype = {+  moveTo: function(x, y) { this._context.moveTo(y, x); },+  closePath: function() { this._context.closePath(); },+  lineTo: function(x, y) { this._context.lineTo(y, x); },+  bezierCurveTo: function(x1, y1, x2, y2, x, y) { this._context.bezierCurveTo(y1, x1, y2, x2, y, x); }+};++function monotoneX(context) {+  return new MonotoneX(context);+}++function monotoneY(context) {+  return new MonotoneY(context);+}++function Natural(context) {+  this._context = context;+}++Natural.prototype = {+  areaStart: function() {+    this._line = 0;+  },+  areaEnd: function() {+    this._line = NaN;+  },+  lineStart: function() {+    this._x = [];+    this._y = [];+  },+  lineEnd: function() {+    var x = this._x,+        y = this._y,+        n = x.length;++    if (n) {+      this._line ? this._context.lineTo(x[0], y[0]) : this._context.moveTo(x[0], y[0]);+      if (n === 2) {+        this._context.lineTo(x[1], y[1]);+      } else {+        var px = controlPoints(x),+            py = controlPoints(y);+        for (var i0 = 0, i1 = 1; i1 < n; ++i0, ++i1) {+          this._context.bezierCurveTo(px[0][i0], py[0][i0], px[1][i0], py[1][i0], x[i1], y[i1]);+        }+      }+    }++    if (this._line || (this._line !== 0 && n === 1)) this._context.closePath();+    this._line = 1 - this._line;+    this._x = this._y = null;+  },+  point: function(x, y) {+    this._x.push(+x);+    this._y.push(+y);+  }+};++// See https://www.particleincell.com/2012/bezier-splines/ for derivation.+function controlPoints(x) {+  var i,+      n = x.length - 1,+      m,+      a = new Array(n),+      b = new Array(n),+      r = new Array(n);+  a[0] = 0, b[0] = 2, r[0] = x[0] + 2 * x[1];+  for (i = 1; i < n - 1; ++i) a[i] = 1, b[i] = 4, r[i] = 4 * x[i] + 2 * x[i + 1];+  a[n - 1] = 2, b[n - 1] = 7, r[n - 1] = 8 * x[n - 1] + x[n];+  for (i = 1; i < n; ++i) m = a[i] / b[i - 1], b[i] -= m, r[i] -= m * r[i - 1];+  a[n - 1] = r[n - 1] / b[n - 1];+  for (i = n - 2; i >= 0; --i) a[i] = (r[i] - a[i + 1]) / b[i];+  b[n - 1] = (x[n] + a[n - 1]) / 2;+  for (i = 0; i < n - 1; ++i) b[i] = 2 * x[i + 1] - a[i + 1];+  return [a, b];+}++var natural = function(context) {+  return new Natural(context);+};++function Step(context, t) {+  this._context = context;+  this._t = t;+}++Step.prototype = {+  areaStart: function() {+    this._line = 0;+  },+  areaEnd: function() {+    this._line = NaN;+  },+  lineStart: function() {+    this._x = this._y = NaN;+    this._point = 0;+  },+  lineEnd: function() {+    if (0 < this._t && this._t < 1 && this._point === 2) this._context.lineTo(this._x, this._y);+    if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();+    if (this._line >= 0) this._t = 1 - this._t, this._line = 1 - this._line;+  },+  point: function(x, y) {+    x = +x, y = +y;+    switch (this._point) {+      case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;+      case 1: this._point = 2; // proceed+      default: {+        if (this._t <= 0) {+          this._context.lineTo(this._x, y);+          this._context.lineTo(x, y);+        } else {+          var x1 = this._x * (1 - this._t) + x * this._t;+          this._context.lineTo(x1, this._y);+          this._context.lineTo(x1, y);+        }+        break;+      }+    }+    this._x = x, this._y = y;+  }+};++var step = function(context) {+  return new Step(context, 0.5);+};++function stepBefore(context) {+  return new Step(context, 0);+}++function stepAfter(context) {+  return new Step(context, 1);+}++var slice$2 = Array.prototype.slice;++var none = function(series, order) {+  if (!((n = series.length) > 1)) return;+  for (var i = 1, s0, s1 = series[order[0]], n, m = s1.length; i < n; ++i) {+    s0 = s1, s1 = series[order[i]];+    for (var j = 0; j < m; ++j) {+      s1[j][1] += s1[j][0] = isNaN(s0[j][1]) ? s0[j][0] : s0[j][1];+    }+  }+};++var none$1 = function(series) {+  var n = series.length, o = new Array(n);+  while (--n >= 0) o[n] = n;+  return o;+};++function stackValue(d, key) {+  return d[key];+}++var stack = function() {+  var keys = constant$2([]),+      order = none$1,+      offset = none,+      value = stackValue;++  function stack(data) {+    var kz = keys.apply(this, arguments),+        i,+        m = data.length,+        n = kz.length,+        sz = new Array(n),+        oz;++    for (i = 0; i < n; ++i) {+      for (var ki = kz[i], si = sz[i] = new Array(m), j = 0, sij; j < m; ++j) {+        si[j] = sij = [0, +value(data[j], ki, j, data)];+        sij.data = data[j];+      }+      si.key = ki;+    }++    for (i = 0, oz = order(sz); i < n; ++i) {+      sz[oz[i]].index = i;+    }++    offset(sz, oz);+    return sz;+  }++  stack.keys = function(_) {+    return arguments.length ? (keys = typeof _ === "function" ? _ : constant$2(slice$2.call(_)), stack) : keys;+  };++  stack.value = function(_) {+    return arguments.length ? (value = typeof _ === "function" ? _ : constant$2(+_), stack) : value;+  };++  stack.order = function(_) {+    return arguments.length ? (order = _ == null ? none$1 : typeof _ === "function" ? _ : constant$2(slice$2.call(_)), stack) : order;+  };++  stack.offset = function(_) {+    return arguments.length ? (offset = _ == null ? none : _, stack) : offset;+  };++  return stack;+};++var expand = function(series, order) {+  if (!((n = series.length) > 0)) return;+  for (var i, n, j = 0, m = series[0].length, y; j < m; ++j) {+    for (y = i = 0; i < n; ++i) y += series[i][j][1] || 0;+    if (y) for (i = 0; i < n; ++i) series[i][j][1] /= y;+  }+  none(series, order);+};++var silhouette = function(series, order) {+  if (!((n = series.length) > 0)) return;+  for (var j = 0, s0 = series[order[0]], n, m = s0.length; j < m; ++j) {+    for (var i = 0, y = 0; i < n; ++i) y += series[i][j][1] || 0;+    s0[j][1] += s0[j][0] = -y / 2;+  }+  none(series, order);+};++var wiggle = function(series, order) {+  if (!((n = series.length) > 0) || !((m = (s0 = series[order[0]]).length) > 0)) return;+  for (var y = 0, j = 1, s0, m, n; j < m; ++j) {+    for (var i = 0, s1 = 0, s2 = 0; i < n; ++i) {+      var si = series[order[i]],+          sij0 = si[j][1] || 0,+          sij1 = si[j - 1][1] || 0,+          s3 = (sij0 - sij1) / 2;+      for (var k = 0; k < i; ++k) {+        var sk = series[order[k]],+            skj0 = sk[j][1] || 0,+            skj1 = sk[j - 1][1] || 0;+        s3 += skj0 - skj1;+      }+      s1 += sij0, s2 += s3 * sij0;+    }+    s0[j - 1][1] += s0[j - 1][0] = y;+    if (s1) y -= s2 / s1;+  }+  s0[j - 1][1] += s0[j - 1][0] = y;+  none(series, order);+};++var ascending$1 = function(series) {+  var sums = series.map(sum$1);+  return none$1(series).sort(function(a, b) { return sums[a] - sums[b]; });+};++function sum$1(series) {+  var s = 0, i = -1, n = series.length, v;+  while (++i < n) if (v = +series[i][1]) s += v;+  return s;+}++var descending$2 = function(series) {+  return ascending$1(series).reverse();+};++var insideOut = function(series) {+  var n = series.length,+      i,+      j,+      sums = series.map(sum$1),+      order = none$1(series).sort(function(a, b) { return sums[b] - sums[a]; }),+      top = 0,+      bottom = 0,+      tops = [],+      bottoms = [];++  for (i = 0; i < n; ++i) {+    j = order[i];+    if (top < bottom) {+      top += sums[j];+      tops.push(j);+    } else {+      bottom += sums[j];+      bottoms.push(j);+    }+  }++  return bottoms.reverse().concat(tops);+};++var reverse = function(series) {+  return none$1(series).reverse();+};++var define = function(constructor, factory, prototype) {+  constructor.prototype = factory.prototype = prototype;+  prototype.constructor = constructor;+};++function extend(parent, definition) {+  var prototype = Object.create(parent.prototype);+  for (var key in definition) prototype[key] = definition[key];+  return prototype;+}++function Color() {}++var darker = 0.7;+var brighter = 1 / darker;++var reI = "\\s*([+-]?\\d+)\\s*";+var reN = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\s*";+var reP = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)%\\s*";+var reHex3 = /^#([0-9a-f]{3})$/;+var reHex6 = /^#([0-9a-f]{6})$/;+var reRgbInteger = new RegExp("^rgb\\(" + [reI, reI, reI] + "\\)$");+var reRgbPercent = new RegExp("^rgb\\(" + [reP, reP, reP] + "\\)$");+var reRgbaInteger = new RegExp("^rgba\\(" + [reI, reI, reI, reN] + "\\)$");+var reRgbaPercent = new RegExp("^rgba\\(" + [reP, reP, reP, reN] + "\\)$");+var reHslPercent = new RegExp("^hsl\\(" + [reN, reP, reP] + "\\)$");+var reHslaPercent = new RegExp("^hsla\\(" + [reN, reP, reP, reN] + "\\)$");++var named = {+  aliceblue: 0xf0f8ff,+  antiquewhite: 0xfaebd7,+  aqua: 0x00ffff,+  aquamarine: 0x7fffd4,+  azure: 0xf0ffff,+  beige: 0xf5f5dc,+  bisque: 0xffe4c4,+  black: 0x000000,+  blanchedalmond: 0xffebcd,+  blue: 0x0000ff,+  blueviolet: 0x8a2be2,+  brown: 0xa52a2a,+  burlywood: 0xdeb887,+  cadetblue: 0x5f9ea0,+  chartreuse: 0x7fff00,+  chocolate: 0xd2691e,+  coral: 0xff7f50,+  cornflowerblue: 0x6495ed,+  cornsilk: 0xfff8dc,+  crimson: 0xdc143c,+  cyan: 0x00ffff,+  darkblue: 0x00008b,+  darkcyan: 0x008b8b,+  darkgoldenrod: 0xb8860b,+  darkgray: 0xa9a9a9,+  darkgreen: 0x006400,+  darkgrey: 0xa9a9a9,+  darkkhaki: 0xbdb76b,+  darkmagenta: 0x8b008b,+  darkolivegreen: 0x556b2f,+  darkorange: 0xff8c00,+  darkorchid: 0x9932cc,+  darkred: 0x8b0000,+  darksalmon: 0xe9967a,+  darkseagreen: 0x8fbc8f,+  darkslateblue: 0x483d8b,+  darkslategray: 0x2f4f4f,+  darkslategrey: 0x2f4f4f,+  darkturquoise: 0x00ced1,+  darkviolet: 0x9400d3,+  deeppink: 0xff1493,+  deepskyblue: 0x00bfff,+  dimgray: 0x696969,+  dimgrey: 0x696969,+  dodgerblue: 0x1e90ff,+  firebrick: 0xb22222,+  floralwhite: 0xfffaf0,+  forestgreen: 0x228b22,+  fuchsia: 0xff00ff,+  gainsboro: 0xdcdcdc,+  ghostwhite: 0xf8f8ff,+  gold: 0xffd700,+  goldenrod: 0xdaa520,+  gray: 0x808080,+  green: 0x008000,+  greenyellow: 0xadff2f,+  grey: 0x808080,+  honeydew: 0xf0fff0,+  hotpink: 0xff69b4,+  indianred: 0xcd5c5c,+  indigo: 0x4b0082,+  ivory: 0xfffff0,+  khaki: 0xf0e68c,+  lavender: 0xe6e6fa,+  lavenderblush: 0xfff0f5,+  lawngreen: 0x7cfc00,+  lemonchiffon: 0xfffacd,+  lightblue: 0xadd8e6,+  lightcoral: 0xf08080,+  lightcyan: 0xe0ffff,+  lightgoldenrodyellow: 0xfafad2,+  lightgray: 0xd3d3d3,+  lightgreen: 0x90ee90,+  lightgrey: 0xd3d3d3,+  lightpink: 0xffb6c1,+  lightsalmon: 0xffa07a,+  lightseagreen: 0x20b2aa,+  lightskyblue: 0x87cefa,+  lightslategray: 0x778899,+  lightslategrey: 0x778899,+  lightsteelblue: 0xb0c4de,+  lightyellow: 0xffffe0,+  lime: 0x00ff00,+  limegreen: 0x32cd32,+  linen: 0xfaf0e6,+  magenta: 0xff00ff,+  maroon: 0x800000,+  mediumaquamarine: 0x66cdaa,+  mediumblue: 0x0000cd,+  mediumorchid: 0xba55d3,+  mediumpurple: 0x9370db,+  mediumseagreen: 0x3cb371,+  mediumslateblue: 0x7b68ee,+  mediumspringgreen: 0x00fa9a,+  mediumturquoise: 0x48d1cc,+  mediumvioletred: 0xc71585,+  midnightblue: 0x191970,+  mintcream: 0xf5fffa,+  mistyrose: 0xffe4e1,+  moccasin: 0xffe4b5,+  navajowhite: 0xffdead,+  navy: 0x000080,+  oldlace: 0xfdf5e6,+  olive: 0x808000,+  olivedrab: 0x6b8e23,+  orange: 0xffa500,+  orangered: 0xff4500,+  orchid: 0xda70d6,+  palegoldenrod: 0xeee8aa,+  palegreen: 0x98fb98,+  paleturquoise: 0xafeeee,+  palevioletred: 0xdb7093,+  papayawhip: 0xffefd5,+  peachpuff: 0xffdab9,+  peru: 0xcd853f,+  pink: 0xffc0cb,+  plum: 0xdda0dd,+  powderblue: 0xb0e0e6,+  purple: 0x800080,+  rebeccapurple: 0x663399,+  red: 0xff0000,+  rosybrown: 0xbc8f8f,+  royalblue: 0x4169e1,+  saddlebrown: 0x8b4513,+  salmon: 0xfa8072,+  sandybrown: 0xf4a460,+  seagreen: 0x2e8b57,+  seashell: 0xfff5ee,+  sienna: 0xa0522d,+  silver: 0xc0c0c0,+  skyblue: 0x87ceeb,+  slateblue: 0x6a5acd,+  slategray: 0x708090,+  slategrey: 0x708090,+  snow: 0xfffafa,+  springgreen: 0x00ff7f,+  steelblue: 0x4682b4,+  tan: 0xd2b48c,+  teal: 0x008080,+  thistle: 0xd8bfd8,+  tomato: 0xff6347,+  turquoise: 0x40e0d0,+  violet: 0xee82ee,+  wheat: 0xf5deb3,+  white: 0xffffff,+  whitesmoke: 0xf5f5f5,+  yellow: 0xffff00,+  yellowgreen: 0x9acd32+};++define(Color, color, {+  displayable: function() {+    return this.rgb().displayable();+  },+  toString: function() {+    return this.rgb() + "";+  }+});++function color(format) {+  var m;+  format = (format + "").trim().toLowerCase();+  return (m = reHex3.exec(format)) ? (m = parseInt(m[1], 16), new Rgb((m >> 8 & 0xf) | (m >> 4 & 0x0f0), (m >> 4 & 0xf) | (m & 0xf0), ((m & 0xf) << 4) | (m & 0xf), 1)) // #f00+      : (m = reHex6.exec(format)) ? rgbn(parseInt(m[1], 16)) // #ff0000+      : (m = reRgbInteger.exec(format)) ? new Rgb(m[1], m[2], m[3], 1) // rgb(255, 0, 0)+      : (m = reRgbPercent.exec(format)) ? new Rgb(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, 1) // rgb(100%, 0%, 0%)+      : (m = reRgbaInteger.exec(format)) ? rgba(m[1], m[2], m[3], m[4]) // rgba(255, 0, 0, 1)+      : (m = reRgbaPercent.exec(format)) ? rgba(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, m[4]) // rgb(100%, 0%, 0%, 1)+      : (m = reHslPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, 1) // hsl(120, 50%, 50%)+      : (m = reHslaPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, m[4]) // hsla(120, 50%, 50%, 1)+      : named.hasOwnProperty(format) ? rgbn(named[format])+      : format === "transparent" ? new Rgb(NaN, NaN, NaN, 0)+      : null;+}++function rgbn(n) {+  return new Rgb(n >> 16 & 0xff, n >> 8 & 0xff, n & 0xff, 1);+}++function rgba(r, g, b, a) {+  if (a <= 0) r = g = b = NaN;+  return new Rgb(r, g, b, a);+}++function rgbConvert(o) {+  if (!(o instanceof Color)) o = color(o);+  if (!o) return new Rgb;+  o = o.rgb();+  return new Rgb(o.r, o.g, o.b, o.opacity);+}++function rgb(r, g, b, opacity) {+  return arguments.length === 1 ? rgbConvert(r) : new Rgb(r, g, b, opacity == null ? 1 : opacity);+}++function Rgb(r, g, b, opacity) {+  this.r = +r;+  this.g = +g;+  this.b = +b;+  this.opacity = +opacity;+}++define(Rgb, rgb, extend(Color, {+  brighter: function(k) {+    k = k == null ? brighter : Math.pow(brighter, k);+    return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);+  },+  darker: function(k) {+    k = k == null ? darker : Math.pow(darker, k);+    return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);+  },+  rgb: function() {+    return this;+  },+  displayable: function() {+    return (0 <= this.r && this.r <= 255)+        && (0 <= this.g && this.g <= 255)+        && (0 <= this.b && this.b <= 255)+        && (0 <= this.opacity && this.opacity <= 1);+  },+  toString: function() {+    var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));+    return (a === 1 ? "rgb(" : "rgba(")+        + Math.max(0, Math.min(255, Math.round(this.r) || 0)) + ", "+        + Math.max(0, Math.min(255, Math.round(this.g) || 0)) + ", "+        + Math.max(0, Math.min(255, Math.round(this.b) || 0))+        + (a === 1 ? ")" : ", " + a + ")");+  }+}));++function hsla(h, s, l, a) {+  if (a <= 0) h = s = l = NaN;+  else if (l <= 0 || l >= 1) h = s = NaN;+  else if (s <= 0) h = NaN;+  return new Hsl(h, s, l, a);+}++function hslConvert(o) {+  if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity);+  if (!(o instanceof Color)) o = color(o);+  if (!o) return new Hsl;+  if (o instanceof Hsl) return o;+  o = o.rgb();+  var r = o.r / 255,+      g = o.g / 255,+      b = o.b / 255,+      min = Math.min(r, g, b),+      max = Math.max(r, g, b),+      h = NaN,+      s = max - min,+      l = (max + min) / 2;+  if (s) {+    if (r === max) h = (g - b) / s + (g < b) * 6;+    else if (g === max) h = (b - r) / s + 2;+    else h = (r - g) / s + 4;+    s /= l < 0.5 ? max + min : 2 - max - min;+    h *= 60;+  } else {+    s = l > 0 && l < 1 ? 0 : h;+  }+  return new Hsl(h, s, l, o.opacity);+}++function hsl(h, s, l, opacity) {+  return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity);+}++function Hsl(h, s, l, opacity) {+  this.h = +h;+  this.s = +s;+  this.l = +l;+  this.opacity = +opacity;+}++define(Hsl, hsl, extend(Color, {+  brighter: function(k) {+    k = k == null ? brighter : Math.pow(brighter, k);+    return new Hsl(this.h, this.s, this.l * k, this.opacity);+  },+  darker: function(k) {+    k = k == null ? darker : Math.pow(darker, k);+    return new Hsl(this.h, this.s, this.l * k, this.opacity);+  },+  rgb: function() {+    var h = this.h % 360 + (this.h < 0) * 360,+        s = isNaN(h) || isNaN(this.s) ? 0 : this.s,+        l = this.l,+        m2 = l + (l < 0.5 ? l : 1 - l) * s,+        m1 = 2 * l - m2;+    return new Rgb(+      hsl2rgb(h >= 240 ? h - 240 : h + 120, m1, m2),+      hsl2rgb(h, m1, m2),+      hsl2rgb(h < 120 ? h + 240 : h - 120, m1, m2),+      this.opacity+    );+  },+  displayable: function() {+    return (0 <= this.s && this.s <= 1 || isNaN(this.s))+        && (0 <= this.l && this.l <= 1)+        && (0 <= this.opacity && this.opacity <= 1);+  }+}));++/* From FvD 13.37, CSS Color Module Level 3 */+function hsl2rgb(h, m1, m2) {+  return (h < 60 ? m1 + (m2 - m1) * h / 60+      : h < 180 ? m2+      : h < 240 ? m1 + (m2 - m1) * (240 - h) / 60+      : m1) * 255;+}++var deg2rad = Math.PI / 180;+var rad2deg = 180 / Math.PI;++var Kn = 18;+var Xn = 0.950470;+var Yn = 1;+var Zn = 1.088830;+var t0 = 4 / 29;+var t1 = 6 / 29;+var t2 = 3 * t1 * t1;+var t3 = t1 * t1 * t1;++function labConvert(o) {+  if (o instanceof Lab) return new Lab(o.l, o.a, o.b, o.opacity);+  if (o instanceof Hcl) {+    var h = o.h * deg2rad;+    return new Lab(o.l, Math.cos(h) * o.c, Math.sin(h) * o.c, o.opacity);+  }+  if (!(o instanceof Rgb)) o = rgbConvert(o);+  var b = rgb2xyz(o.r),+      a = rgb2xyz(o.g),+      l = rgb2xyz(o.b),+      x = xyz2lab((0.4124564 * b + 0.3575761 * a + 0.1804375 * l) / Xn),+      y = xyz2lab((0.2126729 * b + 0.7151522 * a + 0.0721750 * l) / Yn),+      z = xyz2lab((0.0193339 * b + 0.1191920 * a + 0.9503041 * l) / Zn);+  return new Lab(116 * y - 16, 500 * (x - y), 200 * (y - z), o.opacity);+}++function lab(l, a, b, opacity) {+  return arguments.length === 1 ? labConvert(l) : new Lab(l, a, b, opacity == null ? 1 : opacity);+}++function Lab(l, a, b, opacity) {+  this.l = +l;+  this.a = +a;+  this.b = +b;+  this.opacity = +opacity;+}++define(Lab, lab, extend(Color, {+  brighter: function(k) {+    return new Lab(this.l + Kn * (k == null ? 1 : k), this.a, this.b, this.opacity);+  },+  darker: function(k) {+    return new Lab(this.l - Kn * (k == null ? 1 : k), this.a, this.b, this.opacity);+  },+  rgb: function() {+    var y = (this.l + 16) / 116,+        x = isNaN(this.a) ? y : y + this.a / 500,+        z = isNaN(this.b) ? y : y - this.b / 200;+    y = Yn * lab2xyz(y);+    x = Xn * lab2xyz(x);+    z = Zn * lab2xyz(z);+    return new Rgb(+      xyz2rgb( 3.2404542 * x - 1.5371385 * y - 0.4985314 * z), // D65 -> sRGB+      xyz2rgb(-0.9692660 * x + 1.8760108 * y + 0.0415560 * z),+      xyz2rgb( 0.0556434 * x - 0.2040259 * y + 1.0572252 * z),+      this.opacity+    );+  }+}));++function xyz2lab(t) {+  return t > t3 ? Math.pow(t, 1 / 3) : t / t2 + t0;+}++function lab2xyz(t) {+  return t > t1 ? t * t * t : t2 * (t - t0);+}++function xyz2rgb(x) {+  return 255 * (x <= 0.0031308 ? 12.92 * x : 1.055 * Math.pow(x, 1 / 2.4) - 0.055);+}++function rgb2xyz(x) {+  return (x /= 255) <= 0.04045 ? x / 12.92 : Math.pow((x + 0.055) / 1.055, 2.4);+}++function hclConvert(o) {+  if (o instanceof Hcl) return new Hcl(o.h, o.c, o.l, o.opacity);+  if (!(o instanceof Lab)) o = labConvert(o);+  var h = Math.atan2(o.b, o.a) * rad2deg;+  return new Hcl(h < 0 ? h + 360 : h, Math.sqrt(o.a * o.a + o.b * o.b), o.l, o.opacity);+}++function hcl(h, c, l, opacity) {+  return arguments.length === 1 ? hclConvert(h) : new Hcl(h, c, l, opacity == null ? 1 : opacity);+}++function Hcl(h, c, l, opacity) {+  this.h = +h;+  this.c = +c;+  this.l = +l;+  this.opacity = +opacity;+}++define(Hcl, hcl, extend(Color, {+  brighter: function(k) {+    return new Hcl(this.h, this.c, this.l + Kn * (k == null ? 1 : k), this.opacity);+  },+  darker: function(k) {+    return new Hcl(this.h, this.c, this.l - Kn * (k == null ? 1 : k), this.opacity);+  },+  rgb: function() {+    return labConvert(this).rgb();+  }+}));++var A = -0.14861;+var B = +1.78277;+var C = -0.29227;+var D = -0.90649;+var E = +1.97294;+var ED = E * D;+var EB = E * B;+var BC_DA = B * C - D * A;++function cubehelixConvert(o) {+  if (o instanceof Cubehelix) return new Cubehelix(o.h, o.s, o.l, o.opacity);+  if (!(o instanceof Rgb)) o = rgbConvert(o);+  var r = o.r / 255,+      g = o.g / 255,+      b = o.b / 255,+      l = (BC_DA * b + ED * r - EB * g) / (BC_DA + ED - EB),+      bl = b - l,+      k = (E * (g - l) - C * bl) / D,+      s = Math.sqrt(k * k + bl * bl) / (E * l * (1 - l)), // NaN if l=0 or l=1+      h = s ? Math.atan2(k, bl) * rad2deg - 120 : NaN;+  return new Cubehelix(h < 0 ? h + 360 : h, s, l, o.opacity);+}++function cubehelix(h, s, l, opacity) {+  return arguments.length === 1 ? cubehelixConvert(h) : new Cubehelix(h, s, l, opacity == null ? 1 : opacity);+}++function Cubehelix(h, s, l, opacity) {+  this.h = +h;+  this.s = +s;+  this.l = +l;+  this.opacity = +opacity;+}++define(Cubehelix, cubehelix, extend(Color, {+  brighter: function(k) {+    k = k == null ? brighter : Math.pow(brighter, k);+    return new Cubehelix(this.h, this.s, this.l * k, this.opacity);+  },+  darker: function(k) {+    k = k == null ? darker : Math.pow(darker, k);+    return new Cubehelix(this.h, this.s, this.l * k, this.opacity);+  },+  rgb: function() {+    var h = isNaN(this.h) ? 0 : (this.h + 120) * deg2rad,+        l = +this.l,+        a = isNaN(this.s) ? 0 : this.s * l * (1 - l),+        cosh = Math.cos(h),+        sinh = Math.sin(h);+    return new Rgb(+      255 * (l + a * (A * cosh + B * sinh)),+      255 * (l + a * (C * cosh + D * sinh)),+      255 * (l + a * (E * cosh)),+      this.opacity+    );+  }+}));++function basis$1(t1, v0, v1, v2, v3) {+  var t2 = t1 * t1, t3 = t2 * t1;+  return ((1 - 3 * t1 + 3 * t2 - t3) * v0+      + (4 - 6 * t2 + 3 * t3) * v1+      + (1 + 3 * t1 + 3 * t2 - 3 * t3) * v2+      + t3 * v3) / 6;+}++var basis$2 = function(values) {+  var n = values.length - 1;+  return function(t) {+    var i = t <= 0 ? (t = 0) : t >= 1 ? (t = 1, n - 1) : Math.floor(t * n),+        v1 = values[i],+        v2 = values[i + 1],+        v0 = i > 0 ? values[i - 1] : 2 * v1 - v2,+        v3 = i < n - 1 ? values[i + 2] : 2 * v2 - v1;+    return basis$1((t - i / n) * n, v0, v1, v2, v3);+  };+};++var basisClosed$1 = function(values) {+  var n = values.length;+  return function(t) {+    var i = Math.floor(((t %= 1) < 0 ? ++t : t) * n),+        v0 = values[(i + n - 1) % n],+        v1 = values[i % n],+        v2 = values[(i + 1) % n],+        v3 = values[(i + 2) % n];+    return basis$1((t - i / n) * n, v0, v1, v2, v3);+  };+};++var constant$3 = function(x) {+  return function() {+    return x;+  };+};++function linear$1(a, d) {+  return function(t) {+    return a + t * d;+  };+}++function exponential$1(a, b, y) {+  return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function(t) {+    return Math.pow(a + t * b, y);+  };+}++function hue(a, b) {+  var d = b - a;+  return d ? linear$1(a, d > 180 || d < -180 ? d - 360 * Math.round(d / 360) : d) : constant$3(isNaN(a) ? b : a);+}++function gamma(y) {+  return (y = +y) === 1 ? nogamma : function(a, b) {+    return b - a ? exponential$1(a, b, y) : constant$3(isNaN(a) ? b : a);+  };+}++function nogamma(a, b) {+  var d = b - a;+  return d ? linear$1(a, d) : constant$3(isNaN(a) ? b : a);+}++var interpolateRgb = (function rgbGamma(y) {+  var color$$1 = gamma(y);++  function rgb$$1(start, end) {+    var r = color$$1((start = rgb(start)).r, (end = rgb(end)).r),+        g = color$$1(start.g, end.g),+        b = color$$1(start.b, end.b),+        opacity = color$$1(start.opacity, end.opacity);+    return function(t) {+      start.r = r(t);+      start.g = g(t);+      start.b = b(t);+      start.opacity = opacity(t);+      return start + "";+    };+  }++  rgb$$1.gamma = rgbGamma;++  return rgb$$1;+})(1);++function rgbSpline(spline) {+  return function(colors) {+    var n = colors.length,+        r = new Array(n),+        g = new Array(n),+        b = new Array(n),+        i, color$$1;+    for (i = 0; i < n; ++i) {+      color$$1 = rgb(colors[i]);+      r[i] = color$$1.r || 0;+      g[i] = color$$1.g || 0;+      b[i] = color$$1.b || 0;+    }+    r = spline(r);+    g = spline(g);+    b = spline(b);+    color$$1.opacity = 1;+    return function(t) {+      color$$1.r = r(t);+      color$$1.g = g(t);+      color$$1.b = b(t);+      return color$$1 + "";+    };+  };+}++var rgbBasis = rgbSpline(basis$2);+var rgbBasisClosed = rgbSpline(basisClosed$1);++var array$1 = function(a, b) {+  var nb = b ? b.length : 0,+      na = a ? Math.min(nb, a.length) : 0,+      x = new Array(nb),+      c = new Array(nb),+      i;++  for (i = 0; i < na; ++i) x[i] = interpolate(a[i], b[i]);+  for (; i < nb; ++i) c[i] = b[i];++  return function(t) {+    for (i = 0; i < na; ++i) c[i] = x[i](t);+    return c;+  };+};++var date = function(a, b) {+  var d = new Date;+  return a = +a, b -= a, function(t) {+    return d.setTime(a + b * t), d;+  };+};++var interpolateNumber = function(a, b) {+  return a = +a, b -= a, function(t) {+    return a + b * t;+  };+};++var object = function(a, b) {+  var i = {},+      c = {},+      k;++  if (a === null || typeof a !== "object") a = {};+  if (b === null || typeof b !== "object") b = {};++  for (k in b) {+    if (k in a) {+      i[k] = interpolate(a[k], b[k]);+    } else {+      c[k] = b[k];+    }+  }++  return function(t) {+    for (k in i) c[k] = i[k](t);+    return c;+  };+};++var reA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g;+var reB = new RegExp(reA.source, "g");++function zero(b) {+  return function() {+    return b;+  };+}++function one(b) {+  return function(t) {+    return b(t) + "";+  };+}++var interpolateString = function(a, b) {+  var bi = reA.lastIndex = reB.lastIndex = 0, // scan index for next number in b+      am, // current match in a+      bm, // current match in b+      bs, // string preceding current number in b, if any+      i = -1, // index in s+      s = [], // string constants and placeholders+      q = []; // number interpolators++  // Coerce inputs to strings.+  a = a + "", b = b + "";++  // Interpolate pairs of numbers in a & b.+  while ((am = reA.exec(a))+      && (bm = reB.exec(b))) {+    if ((bs = bm.index) > bi) { // a string precedes the next number in b+      bs = b.slice(bi, bs);+      if (s[i]) s[i] += bs; // coalesce with previous string+      else s[++i] = bs;+    }+    if ((am = am[0]) === (bm = bm[0])) { // numbers in a & b match+      if (s[i]) s[i] += bm; // coalesce with previous string+      else s[++i] = bm;+    } else { // interpolate non-matching numbers+      s[++i] = null;+      q.push({i: i, x: interpolateNumber(am, bm)});+    }+    bi = reB.lastIndex;+  }++  // Add remains of b.+  if (bi < b.length) {+    bs = b.slice(bi);+    if (s[i]) s[i] += bs; // coalesce with previous string+    else s[++i] = bs;+  }++  // Special optimization for only a single match.+  // Otherwise, interpolate each of the numbers and rejoin the string.+  return s.length < 2 ? (q[0]+      ? one(q[0].x)+      : zero(b))+      : (b = q.length, function(t) {+          for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);+          return s.join("");+        });+};++var interpolate = function(a, b) {+  var t = typeof b, c;+  return b == null || t === "boolean" ? constant$3(b)+      : (t === "number" ? interpolateNumber+      : t === "string" ? ((c = color(b)) ? (b = c, interpolateRgb) : interpolateString)+      : b instanceof color ? interpolateRgb+      : b instanceof Date ? date+      : Array.isArray(b) ? array$1+      : isNaN(b) ? object+      : interpolateNumber)(a, b);+};++var interpolateRound = function(a, b) {+  return a = +a, b -= a, function(t) {+    return Math.round(a + b * t);+  };+};++var degrees = 180 / Math.PI;++var identity$2 = {+  translateX: 0,+  translateY: 0,+  rotate: 0,+  skewX: 0,+  scaleX: 1,+  scaleY: 1+};++var decompose = function(a, b, c, d, e, f) {+  var scaleX, scaleY, skewX;+  if (scaleX = Math.sqrt(a * a + b * b)) a /= scaleX, b /= scaleX;+  if (skewX = a * c + b * d) c -= a * skewX, d -= b * skewX;+  if (scaleY = Math.sqrt(c * c + d * d)) c /= scaleY, d /= scaleY, skewX /= scaleY;+  if (a * d < b * c) a = -a, b = -b, skewX = -skewX, scaleX = -scaleX;+  return {+    translateX: e,+    translateY: f,+    rotate: Math.atan2(b, a) * degrees,+    skewX: Math.atan(skewX) * degrees,+    scaleX: scaleX,+    scaleY: scaleY+  };+};++var cssNode;+var cssRoot;+var cssView;+var svgNode;++function parseCss(value) {+  if (value === "none") return identity$2;+  if (!cssNode) cssNode = document.createElement("DIV"), cssRoot = document.documentElement, cssView = document.defaultView;+  cssNode.style.transform = value;+  value = cssView.getComputedStyle(cssRoot.appendChild(cssNode), null).getPropertyValue("transform");+  cssRoot.removeChild(cssNode);+  value = value.slice(7, -1).split(",");+  return decompose(+value[0], +value[1], +value[2], +value[3], +value[4], +value[5]);+}++function parseSvg(value) {+  if (value == null) return identity$2;+  if (!svgNode) svgNode = document.createElementNS("http://www.w3.org/2000/svg", "g");+  svgNode.setAttribute("transform", value);+  if (!(value = svgNode.transform.baseVal.consolidate())) return identity$2;+  value = value.matrix;+  return decompose(value.a, value.b, value.c, value.d, value.e, value.f);+}++function interpolateTransform(parse, pxComma, pxParen, degParen) {++  function pop(s) {+    return s.length ? s.pop() + " " : "";+  }++  function translate(xa, ya, xb, yb, s, q) {+    if (xa !== xb || ya !== yb) {+      var i = s.push("translate(", null, pxComma, null, pxParen);+      q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)});+    } else if (xb || yb) {+      s.push("translate(" + xb + pxComma + yb + pxParen);+    }+  }++  function rotate(a, b, s, q) {+    if (a !== b) {+      if (a - b > 180) b += 360; else if (b - a > 180) a += 360; // shortest path+      q.push({i: s.push(pop(s) + "rotate(", null, degParen) - 2, x: interpolateNumber(a, b)});+    } else if (b) {+      s.push(pop(s) + "rotate(" + b + degParen);+    }+  }++  function skewX(a, b, s, q) {+    if (a !== b) {+      q.push({i: s.push(pop(s) + "skewX(", null, degParen) - 2, x: interpolateNumber(a, b)});+    } else if (b) {+      s.push(pop(s) + "skewX(" + b + degParen);+    }+  }++  function scale(xa, ya, xb, yb, s, q) {+    if (xa !== xb || ya !== yb) {+      var i = s.push(pop(s) + "scale(", null, ",", null, ")");+      q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)});+    } else if (xb !== 1 || yb !== 1) {+      s.push(pop(s) + "scale(" + xb + "," + yb + ")");+    }+  }++  return function(a, b) {+    var s = [], // string constants and placeholders+        q = []; // number interpolators+    a = parse(a), b = parse(b);+    translate(a.translateX, a.translateY, b.translateX, b.translateY, s, q);+    rotate(a.rotate, b.rotate, s, q);+    skewX(a.skewX, b.skewX, s, q);+    scale(a.scaleX, a.scaleY, b.scaleX, b.scaleY, s, q);+    a = b = null; // gc+    return function(t) {+      var i = -1, n = q.length, o;+      while (++i < n) s[(o = q[i]).i] = o.x(t);+      return s.join("");+    };+  };+}++var interpolateTransformCss = interpolateTransform(parseCss, "px, ", "px)", "deg)");+var interpolateTransformSvg = interpolateTransform(parseSvg, ", ", ")", ")");++var rho = Math.SQRT2;+var rho2 = 2;+var rho4 = 4;+var epsilon2 = 1e-12;++function cosh(x) {+  return ((x = Math.exp(x)) + 1 / x) / 2;+}++function sinh(x) {+  return ((x = Math.exp(x)) - 1 / x) / 2;+}++function tanh(x) {+  return ((x = Math.exp(2 * x)) - 1) / (x + 1);+}++// p0 = [ux0, uy0, w0]+// p1 = [ux1, uy1, w1]+var interpolateZoom = function(p0, p1) {+  var ux0 = p0[0], uy0 = p0[1], w0 = p0[2],+      ux1 = p1[0], uy1 = p1[1], w1 = p1[2],+      dx = ux1 - ux0,+      dy = uy1 - uy0,+      d2 = dx * dx + dy * dy,+      i,+      S;++  // Special case for u0 ≅ u1.+  if (d2 < epsilon2) {+    S = Math.log(w1 / w0) / rho;+    i = function(t) {+      return [+        ux0 + t * dx,+        uy0 + t * dy,+        w0 * Math.exp(rho * t * S)+      ];+    };+  }++  // General case.+  else {+    var d1 = Math.sqrt(d2),+        b0 = (w1 * w1 - w0 * w0 + rho4 * d2) / (2 * w0 * rho2 * d1),+        b1 = (w1 * w1 - w0 * w0 - rho4 * d2) / (2 * w1 * rho2 * d1),+        r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0),+        r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1);+    S = (r1 - r0) / rho;+    i = function(t) {+      var s = t * S,+          coshr0 = cosh(r0),+          u = w0 / (rho2 * d1) * (coshr0 * tanh(rho * s + r0) - sinh(r0));+      return [+        ux0 + u * dx,+        uy0 + u * dy,+        w0 * coshr0 / cosh(rho * s + r0)+      ];+    };+  }++  i.duration = S * 1000;++  return i;+};++function hsl$1(hue$$1) {+  return function(start, end) {+    var h = hue$$1((start = hsl(start)).h, (end = hsl(end)).h),+        s = nogamma(start.s, end.s),+        l = nogamma(start.l, end.l),+        opacity = nogamma(start.opacity, end.opacity);+    return function(t) {+      start.h = h(t);+      start.s = s(t);+      start.l = l(t);+      start.opacity = opacity(t);+      return start + "";+    };+  }+}++var hsl$2 = hsl$1(hue);+var hslLong = hsl$1(nogamma);++function lab$1(start, end) {+  var l = nogamma((start = lab(start)).l, (end = lab(end)).l),+      a = nogamma(start.a, end.a),+      b = nogamma(start.b, end.b),+      opacity = nogamma(start.opacity, end.opacity);+  return function(t) {+    start.l = l(t);+    start.a = a(t);+    start.b = b(t);+    start.opacity = opacity(t);+    return start + "";+  };+}++function hcl$1(hue$$1) {+  return function(start, end) {+    var h = hue$$1((start = hcl(start)).h, (end = hcl(end)).h),+        c = nogamma(start.c, end.c),+        l = nogamma(start.l, end.l),+        opacity = nogamma(start.opacity, end.opacity);+    return function(t) {+      start.h = h(t);+      start.c = c(t);+      start.l = l(t);+      start.opacity = opacity(t);+      return start + "";+    };+  }+}++var hcl$2 = hcl$1(hue);+var hclLong = hcl$1(nogamma);++function cubehelix$1(hue$$1) {+  return (function cubehelixGamma(y) {+    y = +y;++    function cubehelix$$1(start, end) {+      var h = hue$$1((start = cubehelix(start)).h, (end = cubehelix(end)).h),+          s = nogamma(start.s, end.s),+          l = nogamma(start.l, end.l),+          opacity = nogamma(start.opacity, end.opacity);+      return function(t) {+        start.h = h(t);+        start.s = s(t);+        start.l = l(Math.pow(t, y));+        start.opacity = opacity(t);+        return start + "";+      };+    }++    cubehelix$$1.gamma = cubehelixGamma;++    return cubehelix$$1;+  })(1);+}++var cubehelix$2 = cubehelix$1(hue);+var cubehelixLong = cubehelix$1(nogamma);++var quantize = function(interpolator, n) {+  var samples = new Array(n);+  for (var i = 0; i < n; ++i) samples[i] = interpolator(i / (n - 1));+  return samples;+};++var noop$1 = {value: function() {}};++function dispatch() {+  for (var i = 0, n = arguments.length, _ = {}, t; i < n; ++i) {+    if (!(t = arguments[i] + "") || (t in _)) throw new Error("illegal type: " + t);+    _[t] = [];+  }+  return new Dispatch(_);+}++function Dispatch(_) {+  this._ = _;+}++function parseTypenames(typenames, types) {+  return typenames.trim().split(/^|\s+/).map(function(t) {+    var name = "", i = t.indexOf(".");+    if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);+    if (t && !types.hasOwnProperty(t)) throw new Error("unknown type: " + t);+    return {type: t, name: name};+  });+}++Dispatch.prototype = dispatch.prototype = {+  constructor: Dispatch,+  on: function(typename, callback) {+    var _ = this._,+        T = parseTypenames(typename + "", _),+        t,+        i = -1,+        n = T.length;++    // If no callback was specified, return the callback of the given type and name.+    if (arguments.length < 2) {+      while (++i < n) if ((t = (typename = T[i]).type) && (t = get(_[t], typename.name))) return t;+      return;+    }++    // If a type was specified, set the callback for the given type and name.+    // Otherwise, if a null callback was specified, remove callbacks of the given name.+    if (callback != null && typeof callback !== "function") throw new Error("invalid callback: " + callback);+    while (++i < n) {+      if (t = (typename = T[i]).type) _[t] = set$2(_[t], typename.name, callback);+      else if (callback == null) for (t in _) _[t] = set$2(_[t], typename.name, null);+    }++    return this;+  },+  copy: function() {+    var copy = {}, _ = this._;+    for (var t in _) copy[t] = _[t].slice();+    return new Dispatch(copy);+  },+  call: function(type, that) {+    if ((n = arguments.length - 2) > 0) for (var args = new Array(n), i = 0, n, t; i < n; ++i) args[i] = arguments[i + 2];+    if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);+    for (t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);+  },+  apply: function(type, that, args) {+    if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);+    for (var t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);+  }+};++function get(type, name) {+  for (var i = 0, n = type.length, c; i < n; ++i) {+    if ((c = type[i]).name === name) {+      return c.value;+    }+  }+}++function set$2(type, name, callback) {+  for (var i = 0, n = type.length; i < n; ++i) {+    if (type[i].name === name) {+      type[i] = noop$1, type = type.slice(0, i).concat(type.slice(i + 1));+      break;+    }+  }+  if (callback != null) type.push({name: name, value: callback});+  return type;+}++function objectConverter(columns) {+  return new Function("d", "return {" + columns.map(function(name, i) {+    return JSON.stringify(name) + ": d[" + i + "]";+  }).join(",") + "}");+}++function customConverter(columns, f) {+  var object = objectConverter(columns);+  return function(row, i) {+    return f(object(row), i, columns);+  };+}++// Compute unique columns in order of discovery.+function inferColumns(rows) {+  var columnSet = Object.create(null),+      columns = [];++  rows.forEach(function(row) {+    for (var column in row) {+      if (!(column in columnSet)) {+        columns.push(columnSet[column] = column);+      }+    }+  });++  return columns;+}++var dsv = function(delimiter) {+  var reFormat = new RegExp("[\"" + delimiter + "\n]"),+      delimiterCode = delimiter.charCodeAt(0);++  function parse(text, f) {+    var convert, columns, rows = parseRows(text, function(row, i) {+      if (convert) return convert(row, i - 1);+      columns = row, convert = f ? customConverter(row, f) : objectConverter(row);+    });+    rows.columns = columns;+    return rows;+  }++  function parseRows(text, f) {+    var EOL = {}, // sentinel value for end-of-line+        EOF = {}, // sentinel value for end-of-file+        rows = [], // output rows+        N = text.length,+        I = 0, // current character index+        n = 0, // the current line number+        t, // the current token+        eol; // is the current token followed by EOL?++    function token() {+      if (I >= N) return EOF; // special case: end of file+      if (eol) return eol = false, EOL; // special case: end of line++      // special case: quotes+      var j = I, c;+      if (text.charCodeAt(j) === 34) {+        var i = j;+        while (i++ < N) {+          if (text.charCodeAt(i) === 34) {+            if (text.charCodeAt(i + 1) !== 34) break;+            ++i;+          }+        }+        I = i + 2;+        c = text.charCodeAt(i + 1);+        if (c === 13) {+          eol = true;+          if (text.charCodeAt(i + 2) === 10) ++I;+        } else if (c === 10) {+          eol = true;+        }+        return text.slice(j + 1, i).replace(/""/g, "\"");+      }++      // common case: find next delimiter or newline+      while (I < N) {+        var k = 1;+        c = text.charCodeAt(I++);+        if (c === 10) eol = true; // \n+        else if (c === 13) { eol = true; if (text.charCodeAt(I) === 10) ++I, ++k; } // \r|\r\n+        else if (c !== delimiterCode) continue;+        return text.slice(j, I - k);+      }++      // special case: last token before EOF+      return text.slice(j);+    }++    while ((t = token()) !== EOF) {+      var a = [];+      while (t !== EOL && t !== EOF) {+        a.push(t);+        t = token();+      }+      if (f && (a = f(a, n++)) == null) continue;+      rows.push(a);+    }++    return rows;+  }++  function format(rows, columns) {+    if (columns == null) columns = inferColumns(rows);+    return [columns.map(formatValue).join(delimiter)].concat(rows.map(function(row) {+      return columns.map(function(column) {+        return formatValue(row[column]);+      }).join(delimiter);+    })).join("\n");+  }++  function formatRows(rows) {+    return rows.map(formatRow).join("\n");+  }++  function formatRow(row) {+    return row.map(formatValue).join(delimiter);+  }++  function formatValue(text) {+    return text == null ? ""+        : reFormat.test(text += "") ? "\"" + text.replace(/\"/g, "\"\"") + "\""+        : text;+  }++  return {+    parse: parse,+    parseRows: parseRows,+    format: format,+    formatRows: formatRows+  };+};++var csv = dsv(",");++var csvParse = csv.parse;+var csvParseRows = csv.parseRows;+var csvFormat = csv.format;+var csvFormatRows = csv.formatRows;++var tsv = dsv("\t");++var tsvParse = tsv.parse;+var tsvParseRows = tsv.parseRows;+var tsvFormat = tsv.format;+var tsvFormatRows = tsv.formatRows;++var request = function(url, callback) {+  var request,+      event = dispatch("beforesend", "progress", "load", "error"),+      mimeType,+      headers = map$1(),+      xhr = new XMLHttpRequest,+      user = null,+      password = null,+      response,+      responseType,+      timeout = 0;++  // If IE does not support CORS, use XDomainRequest.+  if (typeof XDomainRequest !== "undefined"+      && !("withCredentials" in xhr)+      && /^(http(s)?:)?\/\//.test(url)) xhr = new XDomainRequest;++  "onload" in xhr+      ? xhr.onload = xhr.onerror = xhr.ontimeout = respond+      : xhr.onreadystatechange = function(o) { xhr.readyState > 3 && respond(o); };++  function respond(o) {+    var status = xhr.status, result;+    if (!status && hasResponse(xhr)+        || status >= 200 && status < 300+        || status === 304) {+      if (response) {+        try {+          result = response.call(request, xhr);+        } catch (e) {+          event.call("error", request, e);+          return;+        }+      } else {+        result = xhr;+      }+      event.call("load", request, result);+    } else {+      event.call("error", request, o);+    }+  }++  xhr.onprogress = function(e) {+    event.call("progress", request, e);+  };++  request = {+    header: function(name, value) {+      name = (name + "").toLowerCase();+      if (arguments.length < 2) return headers.get(name);+      if (value == null) headers.remove(name);+      else headers.set(name, value + "");+      return request;+    },++    // If mimeType is non-null and no Accept header is set, a default is used.+    mimeType: function(value) {+      if (!arguments.length) return mimeType;+      mimeType = value == null ? null : value + "";+      return request;+    },++    // Specifies what type the response value should take;+    // for instance, arraybuffer, blob, document, or text.+    responseType: function(value) {+      if (!arguments.length) return responseType;+      responseType = value;+      return request;+    },++    timeout: function(value) {+      if (!arguments.length) return timeout;+      timeout = +value;+      return request;+    },++    user: function(value) {+      return arguments.length < 1 ? user : (user = value == null ? null : value + "", request);+    },++    password: function(value) {+      return arguments.length < 1 ? password : (password = value == null ? null : value + "", request);+    },++    // Specify how to convert the response content to a specific type;+    // changes the callback value on "load" events.+    response: function(value) {+      response = value;+      return request;+    },++    // Alias for send("GET", …).+    get: function(data, callback) {+      return request.send("GET", data, callback);+    },++    // Alias for send("POST", …).+    post: function(data, callback) {+      return request.send("POST", data, callback);+    },++    // If callback is non-null, it will be used for error and load events.+    send: function(method, data, callback) {+      xhr.open(method, url, true, user, password);+      if (mimeType != null && !headers.has("accept")) headers.set("accept", mimeType + ",*/*");+      if (xhr.setRequestHeader) headers.each(function(value, name) { xhr.setRequestHeader(name, value); });+      if (mimeType != null && xhr.overrideMimeType) xhr.overrideMimeType(mimeType);+      if (responseType != null) xhr.responseType = responseType;+      if (timeout > 0) xhr.timeout = timeout;+      if (callback == null && typeof data === "function") callback = data, data = null;+      if (callback != null && callback.length === 1) callback = fixCallback(callback);+      if (callback != null) request.on("error", callback).on("load", function(xhr) { callback(null, xhr); });+      event.call("beforesend", request, xhr);+      xhr.send(data == null ? null : data);+      return request;+    },++    abort: function() {+      xhr.abort();+      return request;+    },++    on: function() {+      var value = event.on.apply(event, arguments);+      return value === event ? request : value;+    }+  };++  if (callback != null) {+    if (typeof callback !== "function") throw new Error("invalid callback: " + callback);+    return request.get(callback);+  }++  return request;+};++function fixCallback(callback) {+  return function(error, xhr) {+    callback(error == null ? xhr : null);+  };+}++function hasResponse(xhr) {+  var type = xhr.responseType;+  return type && type !== "text"+      ? xhr.response // null on error+      : xhr.responseText; // "" on error+}++var type = function(defaultMimeType, response) {+  return function(url, callback) {+    var r = request(url).mimeType(defaultMimeType).response(response);+    if (callback != null) {+      if (typeof callback !== "function") throw new Error("invalid callback: " + callback);+      return r.get(callback);+    }+    return r;+  };+};++var html = type("text/html", function(xhr) {+  return document.createRange().createContextualFragment(xhr.responseText);+});++var json = type("application/json", function(xhr) {+  return JSON.parse(xhr.responseText);+});++var text = type("text/plain", function(xhr) {+  return xhr.responseText;+});++var xml = type("application/xml", function(xhr) {+  var xml = xhr.responseXML;+  if (!xml) throw new Error("parse error");+  return xml;+});++var dsv$1 = function(defaultMimeType, parse) {+  return function(url, row, callback) {+    if (arguments.length < 3) callback = row, row = null;+    var r = request(url).mimeType(defaultMimeType);+    r.row = function(_) { return arguments.length ? r.response(responseOf(parse, row = _)) : row; };+    r.row(row);+    return callback ? r.get(callback) : r;+  };+};++function responseOf(parse, row) {+  return function(request$$1) {+    return parse(request$$1.responseText, row);+  };+}++var csv$1 = dsv$1("text/csv", csvParse);++var tsv$1 = dsv$1("text/tab-separated-values", tsvParse);++var frame = 0;+var timeout = 0;+var interval = 0;+var pokeDelay = 1000;+var taskHead;+var taskTail;+var clockLast = 0;+var clockNow = 0;+var clockSkew = 0;+var clock = typeof performance === "object" && performance.now ? performance : Date;+var setFrame = typeof requestAnimationFrame === "function" ? requestAnimationFrame : function(f) { setTimeout(f, 17); };++function now() {+  return clockNow || (setFrame(clearNow), clockNow = clock.now() + clockSkew);+}++function clearNow() {+  clockNow = 0;+}++function Timer() {+  this._call =+  this._time =+  this._next = null;+}++Timer.prototype = timer.prototype = {+  constructor: Timer,+  restart: function(callback, delay, time) {+    if (typeof callback !== "function") throw new TypeError("callback is not a function");+    time = (time == null ? now() : +time) + (delay == null ? 0 : +delay);+    if (!this._next && taskTail !== this) {+      if (taskTail) taskTail._next = this;+      else taskHead = this;+      taskTail = this;+    }+    this._call = callback;+    this._time = time;+    sleep();+  },+  stop: function() {+    if (this._call) {+      this._call = null;+      this._time = Infinity;+      sleep();+    }+  }+};++function timer(callback, delay, time) {+  var t = new Timer;+  t.restart(callback, delay, time);+  return t;+}++function timerFlush() {+  now(); // Get the current time, if not already set.+  ++frame; // Pretend we’ve set an alarm, if we haven’t already.+  var t = taskHead, e;+  while (t) {+    if ((e = clockNow - t._time) >= 0) t._call.call(null, e);+    t = t._next;+  }+  --frame;+}++function wake() {+  clockNow = (clockLast = clock.now()) + clockSkew;+  frame = timeout = 0;+  try {+    timerFlush();+  } finally {+    frame = 0;+    nap();+    clockNow = 0;+  }+}++function poke$1() {+  var now = clock.now(), delay = now - clockLast;+  if (delay > pokeDelay) clockSkew -= delay, clockLast = now;+}++function nap() {+  var t0, t1 = taskHead, t2, time = Infinity;+  while (t1) {+    if (t1._call) {+      if (time > t1._time) time = t1._time;+      t0 = t1, t1 = t1._next;+    } else {+      t2 = t1._next, t1._next = null;+      t1 = t0 ? t0._next = t2 : taskHead = t2;+    }+  }+  taskTail = t0;+  sleep(time);+}++function sleep(time) {+  if (frame) return; // Soonest alarm already set, or will be.+  if (timeout) timeout = clearTimeout(timeout);+  var delay = time - clockNow;+  if (delay > 24) {+    if (time < Infinity) timeout = setTimeout(wake, delay);+    if (interval) interval = clearInterval(interval);+  } else {+    if (!interval) interval = setInterval(poke$1, pokeDelay);+    frame = 1, setFrame(wake);+  }+}++var timeout$1 = function(callback, delay, time) {+  var t = new Timer;+  delay = delay == null ? 0 : +delay;+  t.restart(function(elapsed) {+    t.stop();+    callback(elapsed + delay);+  }, delay, time);+  return t;+};++var interval$1 = function(callback, delay, time) {+  var t = new Timer, total = delay;+  if (delay == null) return t.restart(callback, delay, time), t;+  delay = +delay, time = time == null ? now() : +time;+  t.restart(function tick(elapsed) {+    elapsed += total;+    t.restart(tick, total += delay, time);+    callback(elapsed);+  }, delay, time);+  return t;+};++var t0$1 = new Date;+var t1$1 = new Date;++function newInterval(floori, offseti, count, field) {++  function interval(date) {+    return floori(date = new Date(+date)), date;+  }++  interval.floor = interval;++  interval.ceil = function(date) {+    return floori(date = new Date(date - 1)), offseti(date, 1), floori(date), date;+  };++  interval.round = function(date) {+    var d0 = interval(date),+        d1 = interval.ceil(date);+    return date - d0 < d1 - date ? d0 : d1;+  };++  interval.offset = function(date, step) {+    return offseti(date = new Date(+date), step == null ? 1 : Math.floor(step)), date;+  };++  interval.range = function(start, stop, step) {+    var range = [];+    start = interval.ceil(start);+    step = step == null ? 1 : Math.floor(step);+    if (!(start < stop) || !(step > 0)) return range; // also handles Invalid Date+    do range.push(new Date(+start)); while (offseti(start, step), floori(start), start < stop)+    return range;+  };++  interval.filter = function(test) {+    return newInterval(function(date) {+      if (date >= date) while (floori(date), !test(date)) date.setTime(date - 1);+    }, function(date, step) {+      if (date >= date) while (--step >= 0) while (offseti(date, 1), !test(date)) {} // eslint-disable-line no-empty+    });+  };++  if (count) {+    interval.count = function(start, end) {+      t0$1.setTime(+start), t1$1.setTime(+end);+      floori(t0$1), floori(t1$1);+      return Math.floor(count(t0$1, t1$1));+    };++    interval.every = function(step) {+      step = Math.floor(step);+      return !isFinite(step) || !(step > 0) ? null+          : !(step > 1) ? interval+          : interval.filter(field+              ? function(d) { return field(d) % step === 0; }+              : function(d) { return interval.count(0, d) % step === 0; });+    };+  }++  return interval;+}++var millisecond = newInterval(function() {+  // noop+}, function(date, step) {+  date.setTime(+date + step);+}, function(start, end) {+  return end - start;+});++// An optimized implementation for this simple case.+millisecond.every = function(k) {+  k = Math.floor(k);+  if (!isFinite(k) || !(k > 0)) return null;+  if (!(k > 1)) return millisecond;+  return newInterval(function(date) {+    date.setTime(Math.floor(date / k) * k);+  }, function(date, step) {+    date.setTime(+date + step * k);+  }, function(start, end) {+    return (end - start) / k;+  });+};++var milliseconds = millisecond.range;++var durationSecond = 1e3;+var durationMinute = 6e4;+var durationHour = 36e5;+var durationDay = 864e5;+var durationWeek = 6048e5;++var second = newInterval(function(date) {+  date.setTime(Math.floor(date / durationSecond) * durationSecond);+}, function(date, step) {+  date.setTime(+date + step * durationSecond);+}, function(start, end) {+  return (end - start) / durationSecond;+}, function(date) {+  return date.getUTCSeconds();+});++var seconds = second.range;++var minute = newInterval(function(date) {+  date.setTime(Math.floor(date / durationMinute) * durationMinute);+}, function(date, step) {+  date.setTime(+date + step * durationMinute);+}, function(start, end) {+  return (end - start) / durationMinute;+}, function(date) {+  return date.getMinutes();+});++var minutes = minute.range;++var hour = newInterval(function(date) {+  var offset = date.getTimezoneOffset() * durationMinute % durationHour;+  if (offset < 0) offset += durationHour;+  date.setTime(Math.floor((+date - offset) / durationHour) * durationHour + offset);+}, function(date, step) {+  date.setTime(+date + step * durationHour);+}, function(start, end) {+  return (end - start) / durationHour;+}, function(date) {+  return date.getHours();+});++var hours = hour.range;++var day = newInterval(function(date) {+  date.setHours(0, 0, 0, 0);+}, function(date, step) {+  date.setDate(date.getDate() + step);+}, function(start, end) {+  return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationDay;+}, function(date) {+  return date.getDate() - 1;+});++var days = day.range;++function weekday(i) {+  return newInterval(function(date) {+    date.setDate(date.getDate() - (date.getDay() + 7 - i) % 7);+    date.setHours(0, 0, 0, 0);+  }, function(date, step) {+    date.setDate(date.getDate() + step * 7);+  }, function(start, end) {+    return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationWeek;+  });+}++var sunday = weekday(0);+var monday = weekday(1);+var tuesday = weekday(2);+var wednesday = weekday(3);+var thursday = weekday(4);+var friday = weekday(5);+var saturday = weekday(6);++var sundays = sunday.range;+var mondays = monday.range;+var tuesdays = tuesday.range;+var wednesdays = wednesday.range;+var thursdays = thursday.range;+var fridays = friday.range;+var saturdays = saturday.range;++var month = newInterval(function(date) {+  date.setDate(1);+  date.setHours(0, 0, 0, 0);+}, function(date, step) {+  date.setMonth(date.getMonth() + step);+}, function(start, end) {+  return end.getMonth() - start.getMonth() + (end.getFullYear() - start.getFullYear()) * 12;+}, function(date) {+  return date.getMonth();+});++var months = month.range;++var year = newInterval(function(date) {+  date.setMonth(0, 1);+  date.setHours(0, 0, 0, 0);+}, function(date, step) {+  date.setFullYear(date.getFullYear() + step);+}, function(start, end) {+  return end.getFullYear() - start.getFullYear();+}, function(date) {+  return date.getFullYear();+});++// An optimized implementation for this simple case.+year.every = function(k) {+  return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) {+    date.setFullYear(Math.floor(date.getFullYear() / k) * k);+    date.setMonth(0, 1);+    date.setHours(0, 0, 0, 0);+  }, function(date, step) {+    date.setFullYear(date.getFullYear() + step * k);+  });+};++var years = year.range;++var utcMinute = newInterval(function(date) {+  date.setUTCSeconds(0, 0);+}, function(date, step) {+  date.setTime(+date + step * durationMinute);+}, function(start, end) {+  return (end - start) / durationMinute;+}, function(date) {+  return date.getUTCMinutes();+});++var utcMinutes = utcMinute.range;++var utcHour = newInterval(function(date) {+  date.setUTCMinutes(0, 0, 0);+}, function(date, step) {+  date.setTime(+date + step * durationHour);+}, function(start, end) {+  return (end - start) / durationHour;+}, function(date) {+  return date.getUTCHours();+});++var utcHours = utcHour.range;++var utcDay = newInterval(function(date) {+  date.setUTCHours(0, 0, 0, 0);+}, function(date, step) {+  date.setUTCDate(date.getUTCDate() + step);+}, function(start, end) {+  return (end - start) / durationDay;+}, function(date) {+  return date.getUTCDate() - 1;+});++var utcDays = utcDay.range;++function utcWeekday(i) {+  return newInterval(function(date) {+    date.setUTCDate(date.getUTCDate() - (date.getUTCDay() + 7 - i) % 7);+    date.setUTCHours(0, 0, 0, 0);+  }, function(date, step) {+    date.setUTCDate(date.getUTCDate() + step * 7);+  }, function(start, end) {+    return (end - start) / durationWeek;+  });+}++var utcSunday = utcWeekday(0);+var utcMonday = utcWeekday(1);+var utcTuesday = utcWeekday(2);+var utcWednesday = utcWeekday(3);+var utcThursday = utcWeekday(4);+var utcFriday = utcWeekday(5);+var utcSaturday = utcWeekday(6);++var utcSundays = utcSunday.range;+var utcMondays = utcMonday.range;+var utcTuesdays = utcTuesday.range;+var utcWednesdays = utcWednesday.range;+var utcThursdays = utcThursday.range;+var utcFridays = utcFriday.range;+var utcSaturdays = utcSaturday.range;++var utcMonth = newInterval(function(date) {+  date.setUTCDate(1);+  date.setUTCHours(0, 0, 0, 0);+}, function(date, step) {+  date.setUTCMonth(date.getUTCMonth() + step);+}, function(start, end) {+  return end.getUTCMonth() - start.getUTCMonth() + (end.getUTCFullYear() - start.getUTCFullYear()) * 12;+}, function(date) {+  return date.getUTCMonth();+});++var utcMonths = utcMonth.range;++var utcYear = newInterval(function(date) {+  date.setUTCMonth(0, 1);+  date.setUTCHours(0, 0, 0, 0);+}, function(date, step) {+  date.setUTCFullYear(date.getUTCFullYear() + step);+}, function(start, end) {+  return end.getUTCFullYear() - start.getUTCFullYear();+}, function(date) {+  return date.getUTCFullYear();+});++// An optimized implementation for this simple case.+utcYear.every = function(k) {+  return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) {+    date.setUTCFullYear(Math.floor(date.getUTCFullYear() / k) * k);+    date.setUTCMonth(0, 1);+    date.setUTCHours(0, 0, 0, 0);+  }, function(date, step) {+    date.setUTCFullYear(date.getUTCFullYear() + step * k);+  });+};++var utcYears = utcYear.range;++// Computes the decimal coefficient and exponent of the specified number x with+// significant digits p, where x is positive and p is in [1, 21] or undefined.+// For example, formatDecimal(1.23) returns ["123", 0].+var formatDecimal = function(x, p) {+  if ((i = (x = p ? x.toExponential(p - 1) : x.toExponential()).indexOf("e")) < 0) return null; // NaN, ±Infinity+  var i, coefficient = x.slice(0, i);++  // The string returned by toExponential either has the form \d\.\d+e[-+]\d++  // (e.g., 1.2e+3) or the form \de[-+]\d+ (e.g., 1e+3).+  return [+    coefficient.length > 1 ? coefficient[0] + coefficient.slice(2) : coefficient,+    +x.slice(i + 1)+  ];+};++var exponent$1 = function(x) {+  return x = formatDecimal(Math.abs(x)), x ? x[1] : NaN;+};++var formatGroup = function(grouping, thousands) {+  return function(value, width) {+    var i = value.length,+        t = [],+        j = 0,+        g = grouping[0],+        length = 0;++    while (i > 0 && g > 0) {+      if (length + g + 1 > width) g = Math.max(1, width - length);+      t.push(value.substring(i -= g, i + g));+      if ((length += g + 1) > width) break;+      g = grouping[j = (j + 1) % grouping.length];+    }++    return t.reverse().join(thousands);+  };+};++var formatDefault = function(x, p) {+  x = x.toPrecision(p);++  out: for (var n = x.length, i = 1, i0 = -1, i1; i < n; ++i) {+    switch (x[i]) {+      case ".": i0 = i1 = i; break;+      case "0": if (i0 === 0) i0 = i; i1 = i; break;+      case "e": break out;+      default: if (i0 > 0) i0 = 0; break;+    }+  }++  return i0 > 0 ? x.slice(0, i0) + x.slice(i1 + 1) : x;+};++var prefixExponent;++var formatPrefixAuto = function(x, p) {+  var d = formatDecimal(x, p);+  if (!d) return x + "";+  var coefficient = d[0],+      exponent = d[1],+      i = exponent - (prefixExponent = Math.max(-8, Math.min(8, Math.floor(exponent / 3))) * 3) + 1,+      n = coefficient.length;+  return i === n ? coefficient+      : i > n ? coefficient + new Array(i - n + 1).join("0")+      : i > 0 ? coefficient.slice(0, i) + "." + coefficient.slice(i)+      : "0." + new Array(1 - i).join("0") + formatDecimal(x, Math.max(0, p + i - 1))[0]; // less than 1y!+};++var formatRounded = function(x, p) {+  var d = formatDecimal(x, p);+  if (!d) return x + "";+  var coefficient = d[0],+      exponent = d[1];+  return exponent < 0 ? "0." + new Array(-exponent).join("0") + coefficient+      : coefficient.length > exponent + 1 ? coefficient.slice(0, exponent + 1) + "." + coefficient.slice(exponent + 1)+      : coefficient + new Array(exponent - coefficient.length + 2).join("0");+};++var formatTypes = {+  "": formatDefault,+  "%": function(x, p) { return (x * 100).toFixed(p); },+  "b": function(x) { return Math.round(x).toString(2); },+  "c": function(x) { return x + ""; },+  "d": function(x) { return Math.round(x).toString(10); },+  "e": function(x, p) { return x.toExponential(p); },+  "f": function(x, p) { return x.toFixed(p); },+  "g": function(x, p) { return x.toPrecision(p); },+  "o": function(x) { return Math.round(x).toString(8); },+  "p": function(x, p) { return formatRounded(x * 100, p); },+  "r": formatRounded,+  "s": formatPrefixAuto,+  "X": function(x) { return Math.round(x).toString(16).toUpperCase(); },+  "x": function(x) { return Math.round(x).toString(16); }+};++// [[fill]align][sign][symbol][0][width][,][.precision][type]+var re = /^(?:(.)?([<>=^]))?([+\-\( ])?([$#])?(0)?(\d+)?(,)?(\.\d+)?([a-z%])?$/i;++var formatSpecifier = function(specifier) {+  return new FormatSpecifier(specifier);+};++function FormatSpecifier(specifier) {+  if (!(match = re.exec(specifier))) throw new Error("invalid format: " + specifier);++  var match,+      fill = match[1] || " ",+      align = match[2] || ">",+      sign = match[3] || "-",+      symbol = match[4] || "",+      zero = !!match[5],+      width = match[6] && +match[6],+      comma = !!match[7],+      precision = match[8] && +match[8].slice(1),+      type = match[9] || "";++  // The "n" type is an alias for ",g".+  if (type === "n") comma = true, type = "g";++  // Map invalid types to the default format.+  else if (!formatTypes[type]) type = "";++  // If zero fill is specified, padding goes after sign and before digits.+  if (zero || (fill === "0" && align === "=")) zero = true, fill = "0", align = "=";++  this.fill = fill;+  this.align = align;+  this.sign = sign;+  this.symbol = symbol;+  this.zero = zero;+  this.width = width;+  this.comma = comma;+  this.precision = precision;+  this.type = type;+}++FormatSpecifier.prototype.toString = function() {+  return this.fill+      + this.align+      + this.sign+      + this.symbol+      + (this.zero ? "0" : "")+      + (this.width == null ? "" : Math.max(1, this.width | 0))+      + (this.comma ? "," : "")+      + (this.precision == null ? "" : "." + Math.max(0, this.precision | 0))+      + this.type;+};++var prefixes = ["y","z","a","f","p","n","\xB5","m","","k","M","G","T","P","E","Z","Y"];++function identity$3(x) {+  return x;+}++var formatLocale = function(locale) {+  var group = locale.grouping && locale.thousands ? formatGroup(locale.grouping, locale.thousands) : identity$3,+      currency = locale.currency,+      decimal = locale.decimal;++  function newFormat(specifier) {+    specifier = formatSpecifier(specifier);++    var fill = specifier.fill,+        align = specifier.align,+        sign = specifier.sign,+        symbol = specifier.symbol,+        zero = specifier.zero,+        width = specifier.width,+        comma = specifier.comma,+        precision = specifier.precision,+        type = specifier.type;++    // Compute the prefix and suffix.+    // For SI-prefix, the suffix is lazily computed.+    var prefix = symbol === "$" ? currency[0] : symbol === "#" && /[boxX]/.test(type) ? "0" + type.toLowerCase() : "",+        suffix = symbol === "$" ? currency[1] : /[%p]/.test(type) ? "%" : "";++    // What format function should we use?+    // Is this an integer type?+    // Can this type generate exponential notation?+    var formatType = formatTypes[type],+        maybeSuffix = !type || /[defgprs%]/.test(type);++    // Set the default precision if not specified,+    // or clamp the specified precision to the supported range.+    // For significant precision, it must be in [1, 21].+    // For fixed precision, it must be in [0, 20].+    precision = precision == null ? (type ? 6 : 12)+        : /[gprs]/.test(type) ? Math.max(1, Math.min(21, precision))+        : Math.max(0, Math.min(20, precision));++    function format(value) {+      var valuePrefix = prefix,+          valueSuffix = suffix,+          i, n, c;++      if (type === "c") {+        valueSuffix = formatType(value) + valueSuffix;+        value = "";+      } else {+        value = +value;++        // Convert negative to positive, and compute the prefix.+        // Note that -0 is not less than 0, but 1 / -0 is!+        var valueNegative = (value < 0 || 1 / value < 0) && (value *= -1, true);++        // Perform the initial formatting.+        value = formatType(value, precision);++        // If the original value was negative, it may be rounded to zero during+        // formatting; treat this as (positive) zero.+        if (valueNegative) {+          i = -1, n = value.length;+          valueNegative = false;+          while (++i < n) {+            if (c = value.charCodeAt(i), (48 < c && c < 58)+                || (type === "x" && 96 < c && c < 103)+                || (type === "X" && 64 < c && c < 71)) {+              valueNegative = true;+              break;+            }+          }+        }++        // Compute the prefix and suffix.+        valuePrefix = (valueNegative ? (sign === "(" ? sign : "-") : sign === "-" || sign === "(" ? "" : sign) + valuePrefix;+        valueSuffix = valueSuffix + (type === "s" ? prefixes[8 + prefixExponent / 3] : "") + (valueNegative && sign === "(" ? ")" : "");++        // Break the formatted value into the integer “value” part that can be+        // grouped, and fractional or exponential “suffix” part that is not.+        if (maybeSuffix) {+          i = -1, n = value.length;+          while (++i < n) {+            if (c = value.charCodeAt(i), 48 > c || c > 57) {+              valueSuffix = (c === 46 ? decimal + value.slice(i + 1) : value.slice(i)) + valueSuffix;+              value = value.slice(0, i);+              break;+            }+          }+        }+      }++      // If the fill character is not "0", grouping is applied before padding.+      if (comma && !zero) value = group(value, Infinity);++      // Compute the padding.+      var length = valuePrefix.length + value.length + valueSuffix.length,+          padding = length < width ? new Array(width - length + 1).join(fill) : "";++      // If the fill character is "0", grouping is applied after padding.+      if (comma && zero) value = group(padding + value, padding.length ? width - valueSuffix.length : Infinity), padding = "";++      // Reconstruct the final output based on the desired alignment.+      switch (align) {+        case "<": return valuePrefix + value + valueSuffix + padding;+        case "=": return valuePrefix + padding + value + valueSuffix;+        case "^": return padding.slice(0, length = padding.length >> 1) + valuePrefix + value + valueSuffix + padding.slice(length);+      }+      return padding + valuePrefix + value + valueSuffix;+    }++    format.toString = function() {+      return specifier + "";+    };++    return format;+  }++  function formatPrefix(specifier, value) {+    var f = newFormat((specifier = formatSpecifier(specifier), specifier.type = "f", specifier)),+        e = Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3,+        k = Math.pow(10, -e),+        prefix = prefixes[8 + e / 3];+    return function(value) {+      return f(k * value) + prefix;+    };+  }++  return {+    format: newFormat,+    formatPrefix: formatPrefix+  };+};++var locale$1;++++defaultLocale({+  decimal: ".",+  thousands: ",",+  grouping: [3],+  currency: ["$", ""]+});++function defaultLocale(definition) {+  locale$1 = formatLocale(definition);+  exports.format = locale$1.format;+  exports.formatPrefix = locale$1.formatPrefix;+  return locale$1;+}++var precisionFixed = function(step) {+  return Math.max(0, -exponent$1(Math.abs(step)));+};++var precisionPrefix = function(step, value) {+  return Math.max(0, Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3 - exponent$1(Math.abs(step)));+};++var precisionRound = function(step, max) {+  step = Math.abs(step), max = Math.abs(max) - step;+  return Math.max(0, exponent$1(max) - exponent$1(step)) + 1;+};++function localDate(d) {+  if (0 <= d.y && d.y < 100) {+    var date = new Date(-1, d.m, d.d, d.H, d.M, d.S, d.L);+    date.setFullYear(d.y);+    return date;+  }+  return new Date(d.y, d.m, d.d, d.H, d.M, d.S, d.L);+}++function utcDate(d) {+  if (0 <= d.y && d.y < 100) {+    var date = new Date(Date.UTC(-1, d.m, d.d, d.H, d.M, d.S, d.L));+    date.setUTCFullYear(d.y);+    return date;+  }+  return new Date(Date.UTC(d.y, d.m, d.d, d.H, d.M, d.S, d.L));+}++function newYear(y) {+  return {y: y, m: 0, d: 1, H: 0, M: 0, S: 0, L: 0};+}++function formatLocale$1(locale) {+  var locale_dateTime = locale.dateTime,+      locale_date = locale.date,+      locale_time = locale.time,+      locale_periods = locale.periods,+      locale_weekdays = locale.days,+      locale_shortWeekdays = locale.shortDays,+      locale_months = locale.months,+      locale_shortMonths = locale.shortMonths;++  var periodRe = formatRe(locale_periods),+      periodLookup = formatLookup(locale_periods),+      weekdayRe = formatRe(locale_weekdays),+      weekdayLookup = formatLookup(locale_weekdays),+      shortWeekdayRe = formatRe(locale_shortWeekdays),+      shortWeekdayLookup = formatLookup(locale_shortWeekdays),+      monthRe = formatRe(locale_months),+      monthLookup = formatLookup(locale_months),+      shortMonthRe = formatRe(locale_shortMonths),+      shortMonthLookup = formatLookup(locale_shortMonths);++  var formats = {+    "a": formatShortWeekday,+    "A": formatWeekday,+    "b": formatShortMonth,+    "B": formatMonth,+    "c": null,+    "d": formatDayOfMonth,+    "e": formatDayOfMonth,+    "H": formatHour24,+    "I": formatHour12,+    "j": formatDayOfYear,+    "L": formatMilliseconds,+    "m": formatMonthNumber,+    "M": formatMinutes,+    "p": formatPeriod,+    "S": formatSeconds,+    "U": formatWeekNumberSunday,+    "w": formatWeekdayNumber,+    "W": formatWeekNumberMonday,+    "x": null,+    "X": null,+    "y": formatYear,+    "Y": formatFullYear,+    "Z": formatZone,+    "%": formatLiteralPercent+  };++  var utcFormats = {+    "a": formatUTCShortWeekday,+    "A": formatUTCWeekday,+    "b": formatUTCShortMonth,+    "B": formatUTCMonth,+    "c": null,+    "d": formatUTCDayOfMonth,+    "e": formatUTCDayOfMonth,+    "H": formatUTCHour24,+    "I": formatUTCHour12,+    "j": formatUTCDayOfYear,+    "L": formatUTCMilliseconds,+    "m": formatUTCMonthNumber,+    "M": formatUTCMinutes,+    "p": formatUTCPeriod,+    "S": formatUTCSeconds,+    "U": formatUTCWeekNumberSunday,+    "w": formatUTCWeekdayNumber,+    "W": formatUTCWeekNumberMonday,+    "x": null,+    "X": null,+    "y": formatUTCYear,+    "Y": formatUTCFullYear,+    "Z": formatUTCZone,+    "%": formatLiteralPercent+  };++  var parses = {+    "a": parseShortWeekday,+    "A": parseWeekday,+    "b": parseShortMonth,+    "B": parseMonth,+    "c": parseLocaleDateTime,+    "d": parseDayOfMonth,+    "e": parseDayOfMonth,+    "H": parseHour24,+    "I": parseHour24,+    "j": parseDayOfYear,+    "L": parseMilliseconds,+    "m": parseMonthNumber,+    "M": parseMinutes,+    "p": parsePeriod,+    "S": parseSeconds,+    "U": parseWeekNumberSunday,+    "w": parseWeekdayNumber,+    "W": parseWeekNumberMonday,+    "x": parseLocaleDate,+    "X": parseLocaleTime,+    "y": parseYear,+    "Y": parseFullYear,+    "Z": parseZone,+    "%": parseLiteralPercent+  };++  // These recursive directive definitions must be deferred.+  formats.x = newFormat(locale_date, formats);+  formats.X = newFormat(locale_time, formats);+  formats.c = newFormat(locale_dateTime, formats);+  utcFormats.x = newFormat(locale_date, utcFormats);+  utcFormats.X = newFormat(locale_time, utcFormats);+  utcFormats.c = newFormat(locale_dateTime, utcFormats);++  function newFormat(specifier, formats) {+    return function(date) {+      var string = [],+          i = -1,+          j = 0,+          n = specifier.length,+          c,+          pad,+          format;++      if (!(date instanceof Date)) date = new Date(+date);++      while (++i < n) {+        if (specifier.charCodeAt(i) === 37) {+          string.push(specifier.slice(j, i));+          if ((pad = pads[c = specifier.charAt(++i)]) != null) c = specifier.charAt(++i);+          else pad = c === "e" ? " " : "0";+          if (format = formats[c]) c = format(date, pad);+          string.push(c);+          j = i + 1;+        }+      }++      string.push(specifier.slice(j, i));+      return string.join("");+    };+  }++  function newParse(specifier, newDate) {+    return function(string) {+      var d = newYear(1900),+          i = parseSpecifier(d, specifier, string += "", 0);+      if (i != string.length) return null;++      // The am-pm flag is 0 for AM, and 1 for PM.+      if ("p" in d) d.H = d.H % 12 + d.p * 12;++      // Convert day-of-week and week-of-year to day-of-year.+      if ("W" in d || "U" in d) {+        if (!("w" in d)) d.w = "W" in d ? 1 : 0;+        var day$$1 = "Z" in d ? utcDate(newYear(d.y)).getUTCDay() : newDate(newYear(d.y)).getDay();+        d.m = 0;+        d.d = "W" in d ? (d.w + 6) % 7 + d.W * 7 - (day$$1 + 5) % 7 : d.w + d.U * 7 - (day$$1 + 6) % 7;+      }++      // If a time zone is specified, all fields are interpreted as UTC and then+      // offset according to the specified time zone.+      if ("Z" in d) {+        d.H += d.Z / 100 | 0;+        d.M += d.Z % 100;+        return utcDate(d);+      }++      // Otherwise, all fields are in local time.+      return newDate(d);+    };+  }++  function parseSpecifier(d, specifier, string, j) {+    var i = 0,+        n = specifier.length,+        m = string.length,+        c,+        parse;++    while (i < n) {+      if (j >= m) return -1;+      c = specifier.charCodeAt(i++);+      if (c === 37) {+        c = specifier.charAt(i++);+        parse = parses[c in pads ? specifier.charAt(i++) : c];+        if (!parse || ((j = parse(d, string, j)) < 0)) return -1;+      } else if (c != string.charCodeAt(j++)) {+        return -1;+      }+    }++    return j;+  }++  function parsePeriod(d, string, i) {+    var n = periodRe.exec(string.slice(i));+    return n ? (d.p = periodLookup[n[0].toLowerCase()], i + n[0].length) : -1;+  }++  function parseShortWeekday(d, string, i) {+    var n = shortWeekdayRe.exec(string.slice(i));+    return n ? (d.w = shortWeekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1;+  }++  function parseWeekday(d, string, i) {+    var n = weekdayRe.exec(string.slice(i));+    return n ? (d.w = weekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1;+  }++  function parseShortMonth(d, string, i) {+    var n = shortMonthRe.exec(string.slice(i));+    return n ? (d.m = shortMonthLookup[n[0].toLowerCase()], i + n[0].length) : -1;+  }++  function parseMonth(d, string, i) {+    var n = monthRe.exec(string.slice(i));+    return n ? (d.m = monthLookup[n[0].toLowerCase()], i + n[0].length) : -1;+  }++  function parseLocaleDateTime(d, string, i) {+    return parseSpecifier(d, locale_dateTime, string, i);+  }++  function parseLocaleDate(d, string, i) {+    return parseSpecifier(d, locale_date, string, i);+  }++  function parseLocaleTime(d, string, i) {+    return parseSpecifier(d, locale_time, string, i);+  }++  function formatShortWeekday(d) {+    return locale_shortWeekdays[d.getDay()];+  }++  function formatWeekday(d) {+    return locale_weekdays[d.getDay()];+  }++  function formatShortMonth(d) {+    return locale_shortMonths[d.getMonth()];+  }++  function formatMonth(d) {+    return locale_months[d.getMonth()];+  }++  function formatPeriod(d) {+    return locale_periods[+(d.getHours() >= 12)];+  }++  function formatUTCShortWeekday(d) {+    return locale_shortWeekdays[d.getUTCDay()];+  }++  function formatUTCWeekday(d) {+    return locale_weekdays[d.getUTCDay()];+  }++  function formatUTCShortMonth(d) {+    return locale_shortMonths[d.getUTCMonth()];+  }++  function formatUTCMonth(d) {+    return locale_months[d.getUTCMonth()];+  }++  function formatUTCPeriod(d) {+    return locale_periods[+(d.getUTCHours() >= 12)];+  }++  return {+    format: function(specifier) {+      var f = newFormat(specifier += "", formats);+      f.toString = function() { return specifier; };+      return f;+    },+    parse: function(specifier) {+      var p = newParse(specifier += "", localDate);+      p.toString = function() { return specifier; };+      return p;+    },+    utcFormat: function(specifier) {+      var f = newFormat(specifier += "", utcFormats);+      f.toString = function() { return specifier; };+      return f;+    },+    utcParse: function(specifier) {+      var p = newParse(specifier, utcDate);+      p.toString = function() { return specifier; };+      return p;+    }+  };+}++var pads = {"-": "", "_": " ", "0": "0"};+var numberRe = /^\s*\d+/;+var percentRe = /^%/;+var requoteRe = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;++function pad(value, fill, width) {+  var sign = value < 0 ? "-" : "",+      string = (sign ? -value : value) + "",+      length = string.length;+  return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string);+}++function requote(s) {+  return s.replace(requoteRe, "\\$&");+}++function formatRe(names) {+  return new RegExp("^(?:" + names.map(requote).join("|") + ")", "i");+}++function formatLookup(names) {+  var map = {}, i = -1, n = names.length;+  while (++i < n) map[names[i].toLowerCase()] = i;+  return map;+}++function parseWeekdayNumber(d, string, i) {+  var n = numberRe.exec(string.slice(i, i + 1));+  return n ? (d.w = +n[0], i + n[0].length) : -1;+}++function parseWeekNumberSunday(d, string, i) {+  var n = numberRe.exec(string.slice(i));+  return n ? (d.U = +n[0], i + n[0].length) : -1;+}++function parseWeekNumberMonday(d, string, i) {+  var n = numberRe.exec(string.slice(i));+  return n ? (d.W = +n[0], i + n[0].length) : -1;+}++function parseFullYear(d, string, i) {+  var n = numberRe.exec(string.slice(i, i + 4));+  return n ? (d.y = +n[0], i + n[0].length) : -1;+}++function parseYear(d, string, i) {+  var n = numberRe.exec(string.slice(i, i + 2));+  return n ? (d.y = +n[0] + (+n[0] > 68 ? 1900 : 2000), i + n[0].length) : -1;+}++function parseZone(d, string, i) {+  var n = /^(Z)|([+-]\d\d)(?:\:?(\d\d))?/.exec(string.slice(i, i + 6));+  return n ? (d.Z = n[1] ? 0 : -(n[2] + (n[3] || "00")), i + n[0].length) : -1;+}++function parseMonthNumber(d, string, i) {+  var n = numberRe.exec(string.slice(i, i + 2));+  return n ? (d.m = n[0] - 1, i + n[0].length) : -1;+}++function parseDayOfMonth(d, string, i) {+  var n = numberRe.exec(string.slice(i, i + 2));+  return n ? (d.d = +n[0], i + n[0].length) : -1;+}++function parseDayOfYear(d, string, i) {+  var n = numberRe.exec(string.slice(i, i + 3));+  return n ? (d.m = 0, d.d = +n[0], i + n[0].length) : -1;+}++function parseHour24(d, string, i) {+  var n = numberRe.exec(string.slice(i, i + 2));+  return n ? (d.H = +n[0], i + n[0].length) : -1;+}++function parseMinutes(d, string, i) {+  var n = numberRe.exec(string.slice(i, i + 2));+  return n ? (d.M = +n[0], i + n[0].length) : -1;+}++function parseSeconds(d, string, i) {+  var n = numberRe.exec(string.slice(i, i + 2));+  return n ? (d.S = +n[0], i + n[0].length) : -1;+}++function parseMilliseconds(d, string, i) {+  var n = numberRe.exec(string.slice(i, i + 3));+  return n ? (d.L = +n[0], i + n[0].length) : -1;+}++function parseLiteralPercent(d, string, i) {+  var n = percentRe.exec(string.slice(i, i + 1));+  return n ? i + n[0].length : -1;+}++function formatDayOfMonth(d, p) {+  return pad(d.getDate(), p, 2);+}++function formatHour24(d, p) {+  return pad(d.getHours(), p, 2);+}++function formatHour12(d, p) {+  return pad(d.getHours() % 12 || 12, p, 2);+}++function formatDayOfYear(d, p) {+  return pad(1 + day.count(year(d), d), p, 3);+}++function formatMilliseconds(d, p) {+  return pad(d.getMilliseconds(), p, 3);+}++function formatMonthNumber(d, p) {+  return pad(d.getMonth() + 1, p, 2);+}++function formatMinutes(d, p) {+  return pad(d.getMinutes(), p, 2);+}++function formatSeconds(d, p) {+  return pad(d.getSeconds(), p, 2);+}++function formatWeekNumberSunday(d, p) {+  return pad(sunday.count(year(d), d), p, 2);+}++function formatWeekdayNumber(d) {+  return d.getDay();+}++function formatWeekNumberMonday(d, p) {+  return pad(monday.count(year(d), d), p, 2);+}++function formatYear(d, p) {+  return pad(d.getFullYear() % 100, p, 2);+}++function formatFullYear(d, p) {+  return pad(d.getFullYear() % 10000, p, 4);+}++function formatZone(d) {+  var z = d.getTimezoneOffset();+  return (z > 0 ? "-" : (z *= -1, "+"))+      + pad(z / 60 | 0, "0", 2)+      + pad(z % 60, "0", 2);+}++function formatUTCDayOfMonth(d, p) {+  return pad(d.getUTCDate(), p, 2);+}++function formatUTCHour24(d, p) {+  return pad(d.getUTCHours(), p, 2);+}++function formatUTCHour12(d, p) {+  return pad(d.getUTCHours() % 12 || 12, p, 2);+}++function formatUTCDayOfYear(d, p) {+  return pad(1 + utcDay.count(utcYear(d), d), p, 3);+}++function formatUTCMilliseconds(d, p) {+  return pad(d.getUTCMilliseconds(), p, 3);+}++function formatUTCMonthNumber(d, p) {+  return pad(d.getUTCMonth() + 1, p, 2);+}++function formatUTCMinutes(d, p) {+  return pad(d.getUTCMinutes(), p, 2);+}++function formatUTCSeconds(d, p) {+  return pad(d.getUTCSeconds(), p, 2);+}++function formatUTCWeekNumberSunday(d, p) {+  return pad(utcSunday.count(utcYear(d), d), p, 2);+}++function formatUTCWeekdayNumber(d) {+  return d.getUTCDay();+}++function formatUTCWeekNumberMonday(d, p) {+  return pad(utcMonday.count(utcYear(d), d), p, 2);+}++function formatUTCYear(d, p) {+  return pad(d.getUTCFullYear() % 100, p, 2);+}++function formatUTCFullYear(d, p) {+  return pad(d.getUTCFullYear() % 10000, p, 4);+}++function formatUTCZone() {+  return "+0000";+}++function formatLiteralPercent() {+  return "%";+}++var locale$2;++++++defaultLocale$1({+  dateTime: "%x, %X",+  date: "%-m/%-d/%Y",+  time: "%-I:%M:%S %p",+  periods: ["AM", "PM"],+  days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],+  shortDays: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],+  months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],+  shortMonths: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]+});++function defaultLocale$1(definition) {+  locale$2 = formatLocale$1(definition);+  exports.timeFormat = locale$2.format;+  exports.timeParse = locale$2.parse;+  exports.utcFormat = locale$2.utcFormat;+  exports.utcParse = locale$2.utcParse;+  return locale$2;+}++var isoSpecifier = "%Y-%m-%dT%H:%M:%S.%LZ";++function formatIsoNative(date) {+  return date.toISOString();+}++var formatIso = Date.prototype.toISOString+    ? formatIsoNative+    : exports.utcFormat(isoSpecifier);++function parseIsoNative(string) {+  var date = new Date(string);+  return isNaN(date) ? null : date;+}++var parseIso = +new Date("2000-01-01T00:00:00.000Z")+    ? parseIsoNative+    : exports.utcParse(isoSpecifier);++var array$2 = Array.prototype;++var map$3 = array$2.map;+var slice$3 = array$2.slice;++var implicit = {name: "implicit"};++function ordinal(range) {+  var index = map$1(),+      domain = [],+      unknown = implicit;++  range = range == null ? [] : slice$3.call(range);++  function scale(d) {+    var key = d + "", i = index.get(key);+    if (!i) {+      if (unknown !== implicit) return unknown;+      index.set(key, i = domain.push(d));+    }+    return range[(i - 1) % range.length];+  }++  scale.domain = function(_) {+    if (!arguments.length) return domain.slice();+    domain = [], index = map$1();+    var i = -1, n = _.length, d, key;+    while (++i < n) if (!index.has(key = (d = _[i]) + "")) index.set(key, domain.push(d));+    return scale;+  };++  scale.range = function(_) {+    return arguments.length ? (range = slice$3.call(_), scale) : range.slice();+  };++  scale.unknown = function(_) {+    return arguments.length ? (unknown = _, scale) : unknown;+  };++  scale.copy = function() {+    return ordinal()+        .domain(domain)+        .range(range)+        .unknown(unknown);+  };++  return scale;+}++function band() {+  var scale = ordinal().unknown(undefined),+      domain = scale.domain,+      ordinalRange = scale.range,+      range$$1 = [0, 1],+      step,+      bandwidth,+      round = false,+      paddingInner = 0,+      paddingOuter = 0,+      align = 0.5;++  delete scale.unknown;++  function rescale() {+    var n = domain().length,+        reverse = range$$1[1] < range$$1[0],+        start = range$$1[reverse - 0],+        stop = range$$1[1 - reverse];+    step = (stop - start) / Math.max(1, n - paddingInner + paddingOuter * 2);+    if (round) step = Math.floor(step);+    start += (stop - start - step * (n - paddingInner)) * align;+    bandwidth = step * (1 - paddingInner);+    if (round) start = Math.round(start), bandwidth = Math.round(bandwidth);+    var values = range(n).map(function(i) { return start + step * i; });+    return ordinalRange(reverse ? values.reverse() : values);+  }++  scale.domain = function(_) {+    return arguments.length ? (domain(_), rescale()) : domain();+  };++  scale.range = function(_) {+    return arguments.length ? (range$$1 = [+_[0], +_[1]], rescale()) : range$$1.slice();+  };++  scale.rangeRound = function(_) {+    return range$$1 = [+_[0], +_[1]], round = true, rescale();+  };++  scale.bandwidth = function() {+    return bandwidth;+  };++  scale.step = function() {+    return step;+  };++  scale.round = function(_) {+    return arguments.length ? (round = !!_, rescale()) : round;+  };++  scale.padding = function(_) {+    return arguments.length ? (paddingInner = paddingOuter = Math.max(0, Math.min(1, _)), rescale()) : paddingInner;+  };++  scale.paddingInner = function(_) {+    return arguments.length ? (paddingInner = Math.max(0, Math.min(1, _)), rescale()) : paddingInner;+  };++  scale.paddingOuter = function(_) {+    return arguments.length ? (paddingOuter = Math.max(0, Math.min(1, _)), rescale()) : paddingOuter;+  };++  scale.align = function(_) {+    return arguments.length ? (align = Math.max(0, Math.min(1, _)), rescale()) : align;+  };++  scale.copy = function() {+    return band()+        .domain(domain())+        .range(range$$1)+        .round(round)+        .paddingInner(paddingInner)+        .paddingOuter(paddingOuter)+        .align(align);+  };++  return rescale();+}++function pointish(scale) {+  var copy = scale.copy;++  scale.padding = scale.paddingOuter;+  delete scale.paddingInner;+  delete scale.paddingOuter;++  scale.copy = function() {+    return pointish(copy());+  };++  return scale;+}++function point$4() {+  return pointish(band().paddingInner(1));+}++var constant$4 = function(x) {+  return function() {+    return x;+  };+};++var number$1 = function(x) {+  return +x;+};++var unit = [0, 1];++function deinterpolateLinear(a, b) {+  return (b -= (a = +a))+      ? function(x) { return (x - a) / b; }+      : constant$4(b);+}++function deinterpolateClamp(deinterpolate) {+  return function(a, b) {+    var d = deinterpolate(a = +a, b = +b);+    return function(x) { return x <= a ? 0 : x >= b ? 1 : d(x); };+  };+}++function reinterpolateClamp(reinterpolate) {+  return function(a, b) {+    var r = reinterpolate(a = +a, b = +b);+    return function(t) { return t <= 0 ? a : t >= 1 ? b : r(t); };+  };+}++function bimap(domain, range$$1, deinterpolate, reinterpolate) {+  var d0 = domain[0], d1 = domain[1], r0 = range$$1[0], r1 = range$$1[1];+  if (d1 < d0) d0 = deinterpolate(d1, d0), r0 = reinterpolate(r1, r0);+  else d0 = deinterpolate(d0, d1), r0 = reinterpolate(r0, r1);+  return function(x) { return r0(d0(x)); };+}++function polymap(domain, range$$1, deinterpolate, reinterpolate) {+  var j = Math.min(domain.length, range$$1.length) - 1,+      d = new Array(j),+      r = new Array(j),+      i = -1;++  // Reverse descending domains.+  if (domain[j] < domain[0]) {+    domain = domain.slice().reverse();+    range$$1 = range$$1.slice().reverse();+  }++  while (++i < j) {+    d[i] = deinterpolate(domain[i], domain[i + 1]);+    r[i] = reinterpolate(range$$1[i], range$$1[i + 1]);+  }++  return function(x) {+    var i = bisectRight(domain, x, 1, j) - 1;+    return r[i](d[i](x));+  };+}++function copy(source, target) {+  return target+      .domain(source.domain())+      .range(source.range())+      .interpolate(source.interpolate())+      .clamp(source.clamp());+}++// deinterpolate(a, b)(x) takes a domain value x in [a,b] and returns the corresponding parameter t in [0,1].+// reinterpolate(a, b)(t) takes a parameter t in [0,1] and returns the corresponding domain value x in [a,b].+function continuous(deinterpolate, reinterpolate) {+  var domain = unit,+      range$$1 = unit,+      interpolate$$1 = interpolate,+      clamp = false,+      piecewise,+      output,+      input;++  function rescale() {+    piecewise = Math.min(domain.length, range$$1.length) > 2 ? polymap : bimap;+    output = input = null;+    return scale;+  }++  function scale(x) {+    return (output || (output = piecewise(domain, range$$1, clamp ? deinterpolateClamp(deinterpolate) : deinterpolate, interpolate$$1)))(+x);+  }++  scale.invert = function(y) {+    return (input || (input = piecewise(range$$1, domain, deinterpolateLinear, clamp ? reinterpolateClamp(reinterpolate) : reinterpolate)))(+y);+  };++  scale.domain = function(_) {+    return arguments.length ? (domain = map$3.call(_, number$1), rescale()) : domain.slice();+  };++  scale.range = function(_) {+    return arguments.length ? (range$$1 = slice$3.call(_), rescale()) : range$$1.slice();+  };++  scale.rangeRound = function(_) {+    return range$$1 = slice$3.call(_), interpolate$$1 = interpolateRound, rescale();+  };++  scale.clamp = function(_) {+    return arguments.length ? (clamp = !!_, rescale()) : clamp;+  };++  scale.interpolate = function(_) {+    return arguments.length ? (interpolate$$1 = _, rescale()) : interpolate$$1;+  };++  return rescale();+}++var tickFormat = function(domain, count, specifier) {+  var start = domain[0],+      stop = domain[domain.length - 1],+      step = tickStep(start, stop, count == null ? 10 : count),+      precision;+  specifier = formatSpecifier(specifier == null ? ",f" : specifier);+  switch (specifier.type) {+    case "s": {+      var value = Math.max(Math.abs(start), Math.abs(stop));+      if (specifier.precision == null && !isNaN(precision = precisionPrefix(step, value))) specifier.precision = precision;+      return exports.formatPrefix(specifier, value);+    }+    case "":+    case "e":+    case "g":+    case "p":+    case "r": {+      if (specifier.precision == null && !isNaN(precision = precisionRound(step, Math.max(Math.abs(start), Math.abs(stop))))) specifier.precision = precision - (specifier.type === "e");+      break;+    }+    case "f":+    case "%": {+      if (specifier.precision == null && !isNaN(precision = precisionFixed(step))) specifier.precision = precision - (specifier.type === "%") * 2;+      break;+    }+  }+  return exports.format(specifier);+};++function linearish(scale) {+  var domain = scale.domain;++  scale.ticks = function(count) {+    var d = domain();+    return ticks(d[0], d[d.length - 1], count == null ? 10 : count);+  };++  scale.tickFormat = function(count, specifier) {+    return tickFormat(domain(), count, specifier);+  };++  scale.nice = function(count) {+    var d = domain(),+        i = d.length - 1,+        n = count == null ? 10 : count,+        start = d[0],+        stop = d[i],+        step = tickStep(start, stop, n);++    if (step) {+      step = tickStep(Math.floor(start / step) * step, Math.ceil(stop / step) * step, n);+      d[0] = Math.floor(start / step) * step;+      d[i] = Math.ceil(stop / step) * step;+      domain(d);+    }++    return scale;+  };++  return scale;+}++function linear$2() {+  var scale = continuous(deinterpolateLinear, interpolateNumber);++  scale.copy = function() {+    return copy(scale, linear$2());+  };++  return linearish(scale);+}++function identity$4() {+  var domain = [0, 1];++  function scale(x) {+    return +x;+  }++  scale.invert = scale;++  scale.domain = scale.range = function(_) {+    return arguments.length ? (domain = map$3.call(_, number$1), scale) : domain.slice();+  };++  scale.copy = function() {+    return identity$4().domain(domain);+  };++  return linearish(scale);+}++var nice = function(domain, interval) {+  domain = domain.slice();++  var i0 = 0,+      i1 = domain.length - 1,+      x0 = domain[i0],+      x1 = domain[i1],+      t;++  if (x1 < x0) {+    t = i0, i0 = i1, i1 = t;+    t = x0, x0 = x1, x1 = t;+  }++  domain[i0] = interval.floor(x0);+  domain[i1] = interval.ceil(x1);+  return domain;+};++function deinterpolate(a, b) {+  return (b = Math.log(b / a))+      ? function(x) { return Math.log(x / a) / b; }+      : constant$4(b);+}++function reinterpolate(a, b) {+  return a < 0+      ? function(t) { return -Math.pow(-b, t) * Math.pow(-a, 1 - t); }+      : function(t) { return Math.pow(b, t) * Math.pow(a, 1 - t); };+}++function pow10(x) {+  return isFinite(x) ? +("1e" + x) : x < 0 ? 0 : x;+}++function powp(base) {+  return base === 10 ? pow10+      : base === Math.E ? Math.exp+      : function(x) { return Math.pow(base, x); };+}++function logp(base) {+  return base === Math.E ? Math.log+      : base === 10 && Math.log10+      || base === 2 && Math.log2+      || (base = Math.log(base), function(x) { return Math.log(x) / base; });+}++function reflect(f) {+  return function(x) {+    return -f(-x);+  };+}++function log() {+  var scale = continuous(deinterpolate, reinterpolate).domain([1, 10]),+      domain = scale.domain,+      base = 10,+      logs = logp(10),+      pows = powp(10);++  function rescale() {+    logs = logp(base), pows = powp(base);+    if (domain()[0] < 0) logs = reflect(logs), pows = reflect(pows);+    return scale;+  }++  scale.base = function(_) {+    return arguments.length ? (base = +_, rescale()) : base;+  };++  scale.domain = function(_) {+    return arguments.length ? (domain(_), rescale()) : domain();+  };++  scale.ticks = function(count) {+    var d = domain(),+        u = d[0],+        v = d[d.length - 1],+        r;++    if (r = v < u) i = u, u = v, v = i;++    var i = logs(u),+        j = logs(v),+        p,+        k,+        t,+        n = count == null ? 10 : +count,+        z = [];++    if (!(base % 1) && j - i < n) {+      i = Math.round(i) - 1, j = Math.round(j) + 1;+      if (u > 0) for (; i < j; ++i) {+        for (k = 1, p = pows(i); k < base; ++k) {+          t = p * k;+          if (t < u) continue;+          if (t > v) break;+          z.push(t);+        }+      } else for (; i < j; ++i) {+        for (k = base - 1, p = pows(i); k >= 1; --k) {+          t = p * k;+          if (t < u) continue;+          if (t > v) break;+          z.push(t);+        }+      }+    } else {+      z = ticks(i, j, Math.min(j - i, n)).map(pows);+    }++    return r ? z.reverse() : z;+  };++  scale.tickFormat = function(count, specifier) {+    if (specifier == null) specifier = base === 10 ? ".0e" : ",";+    if (typeof specifier !== "function") specifier = exports.format(specifier);+    if (count === Infinity) return specifier;+    if (count == null) count = 10;+    var k = Math.max(1, base * count / scale.ticks().length); // TODO fast estimate?+    return function(d) {+      var i = d / pows(Math.round(logs(d)));+      if (i * base < base - 0.5) i *= base;+      return i <= k ? specifier(d) : "";+    };+  };++  scale.nice = function() {+    return domain(nice(domain(), {+      floor: function(x) { return pows(Math.floor(logs(x))); },+      ceil: function(x) { return pows(Math.ceil(logs(x))); }+    }));+  };++  scale.copy = function() {+    return copy(scale, log().base(base));+  };++  return scale;+}++function raise(x, exponent) {+  return x < 0 ? -Math.pow(-x, exponent) : Math.pow(x, exponent);+}++function pow() {+  var exponent = 1,+      scale = continuous(deinterpolate, reinterpolate),+      domain = scale.domain;++  function deinterpolate(a, b) {+    return (b = raise(b, exponent) - (a = raise(a, exponent)))+        ? function(x) { return (raise(x, exponent) - a) / b; }+        : constant$4(b);+  }++  function reinterpolate(a, b) {+    b = raise(b, exponent) - (a = raise(a, exponent));+    return function(t) { return raise(a + b * t, 1 / exponent); };+  }++  scale.exponent = function(_) {+    return arguments.length ? (exponent = +_, domain(domain())) : exponent;+  };++  scale.copy = function() {+    return copy(scale, pow().exponent(exponent));+  };++  return linearish(scale);+}++function sqrt() {+  return pow().exponent(0.5);+}++function quantile$$1() {+  var domain = [],+      range$$1 = [],+      thresholds = [];++  function rescale() {+    var i = 0, n = Math.max(1, range$$1.length);+    thresholds = new Array(n - 1);+    while (++i < n) thresholds[i - 1] = threshold(domain, i / n);+    return scale;+  }++  function scale(x) {+    if (!isNaN(x = +x)) return range$$1[bisectRight(thresholds, x)];+  }++  scale.invertExtent = function(y) {+    var i = range$$1.indexOf(y);+    return i < 0 ? [NaN, NaN] : [+      i > 0 ? thresholds[i - 1] : domain[0],+      i < thresholds.length ? thresholds[i] : domain[domain.length - 1]+    ];+  };++  scale.domain = function(_) {+    if (!arguments.length) return domain.slice();+    domain = [];+    for (var i = 0, n = _.length, d; i < n; ++i) if (d = _[i], d != null && !isNaN(d = +d)) domain.push(d);+    domain.sort(ascending);+    return rescale();+  };++  scale.range = function(_) {+    return arguments.length ? (range$$1 = slice$3.call(_), rescale()) : range$$1.slice();+  };++  scale.quantiles = function() {+    return thresholds.slice();+  };++  scale.copy = function() {+    return quantile$$1()+        .domain(domain)+        .range(range$$1);+  };++  return scale;+}++function quantize$1() {+  var x0 = 0,+      x1 = 1,+      n = 1,+      domain = [0.5],+      range$$1 = [0, 1];++  function scale(x) {+    if (x <= x) return range$$1[bisectRight(domain, x, 0, n)];+  }++  function rescale() {+    var i = -1;+    domain = new Array(n);+    while (++i < n) domain[i] = ((i + 1) * x1 - (i - n) * x0) / (n + 1);+    return scale;+  }++  scale.domain = function(_) {+    return arguments.length ? (x0 = +_[0], x1 = +_[1], rescale()) : [x0, x1];+  };++  scale.range = function(_) {+    return arguments.length ? (n = (range$$1 = slice$3.call(_)).length - 1, rescale()) : range$$1.slice();+  };++  scale.invertExtent = function(y) {+    var i = range$$1.indexOf(y);+    return i < 0 ? [NaN, NaN]+        : i < 1 ? [x0, domain[0]]+        : i >= n ? [domain[n - 1], x1]+        : [domain[i - 1], domain[i]];+  };++  scale.copy = function() {+    return quantize$1()+        .domain([x0, x1])+        .range(range$$1);+  };++  return linearish(scale);+}++function threshold$1() {+  var domain = [0.5],+      range$$1 = [0, 1],+      n = 1;++  function scale(x) {+    if (x <= x) return range$$1[bisectRight(domain, x, 0, n)];+  }++  scale.domain = function(_) {+    return arguments.length ? (domain = slice$3.call(_), n = Math.min(domain.length, range$$1.length - 1), scale) : domain.slice();+  };++  scale.range = function(_) {+    return arguments.length ? (range$$1 = slice$3.call(_), n = Math.min(domain.length, range$$1.length - 1), scale) : range$$1.slice();+  };++  scale.invertExtent = function(y) {+    var i = range$$1.indexOf(y);+    return [domain[i - 1], domain[i]];+  };++  scale.copy = function() {+    return threshold$1()+        .domain(domain)+        .range(range$$1);+  };++  return scale;+}++var durationSecond$1 = 1000;+var durationMinute$1 = durationSecond$1 * 60;+var durationHour$1 = durationMinute$1 * 60;+var durationDay$1 = durationHour$1 * 24;+var durationWeek$1 = durationDay$1 * 7;+var durationMonth = durationDay$1 * 30;+var durationYear = durationDay$1 * 365;++function date$1(t) {+  return new Date(t);+}++function number$2(t) {+  return t instanceof Date ? +t : +new Date(+t);+}++function calendar(year$$1, month$$1, week, day$$1, hour$$1, minute$$1, second$$1, millisecond$$1, format) {+  var scale = continuous(deinterpolateLinear, interpolateNumber),+      invert = scale.invert,+      domain = scale.domain;++  var formatMillisecond = format(".%L"),+      formatSecond = format(":%S"),+      formatMinute = format("%I:%M"),+      formatHour = format("%I %p"),+      formatDay = format("%a %d"),+      formatWeek = format("%b %d"),+      formatMonth = format("%B"),+      formatYear = format("%Y");++  var tickIntervals = [+    [second$$1,  1,      durationSecond$1],+    [second$$1,  5,  5 * durationSecond$1],+    [second$$1, 15, 15 * durationSecond$1],+    [second$$1, 30, 30 * durationSecond$1],+    [minute$$1,  1,      durationMinute$1],+    [minute$$1,  5,  5 * durationMinute$1],+    [minute$$1, 15, 15 * durationMinute$1],+    [minute$$1, 30, 30 * durationMinute$1],+    [  hour$$1,  1,      durationHour$1  ],+    [  hour$$1,  3,  3 * durationHour$1  ],+    [  hour$$1,  6,  6 * durationHour$1  ],+    [  hour$$1, 12, 12 * durationHour$1  ],+    [   day$$1,  1,      durationDay$1   ],+    [   day$$1,  2,  2 * durationDay$1   ],+    [  week,  1,      durationWeek$1  ],+    [ month$$1,  1,      durationMonth ],+    [ month$$1,  3,  3 * durationMonth ],+    [  year$$1,  1,      durationYear  ]+  ];++  function tickFormat(date) {+    return (second$$1(date) < date ? formatMillisecond+        : minute$$1(date) < date ? formatSecond+        : hour$$1(date) < date ? formatMinute+        : day$$1(date) < date ? formatHour+        : month$$1(date) < date ? (week(date) < date ? formatDay : formatWeek)+        : year$$1(date) < date ? formatMonth+        : formatYear)(date);+  }++  function tickInterval(interval, start, stop, step) {+    if (interval == null) interval = 10;++    // If a desired tick count is specified, pick a reasonable tick interval+    // based on the extent of the domain and a rough estimate of tick size.+    // Otherwise, assume interval is already a time interval and use it.+    if (typeof interval === "number") {+      var target = Math.abs(stop - start) / interval,+          i = bisector(function(i) { return i[2]; }).right(tickIntervals, target);+      if (i === tickIntervals.length) {+        step = tickStep(start / durationYear, stop / durationYear, interval);+        interval = year$$1;+      } else if (i) {+        i = tickIntervals[target / tickIntervals[i - 1][2] < tickIntervals[i][2] / target ? i - 1 : i];+        step = i[1];+        interval = i[0];+      } else {+        step = tickStep(start, stop, interval);+        interval = millisecond$$1;+      }+    }++    return step == null ? interval : interval.every(step);+  }++  scale.invert = function(y) {+    return new Date(invert(y));+  };++  scale.domain = function(_) {+    return arguments.length ? domain(map$3.call(_, number$2)) : domain().map(date$1);+  };++  scale.ticks = function(interval, step) {+    var d = domain(),+        t0 = d[0],+        t1 = d[d.length - 1],+        r = t1 < t0,+        t;+    if (r) t = t0, t0 = t1, t1 = t;+    t = tickInterval(interval, t0, t1, step);+    t = t ? t.range(t0, t1 + 1) : []; // inclusive stop+    return r ? t.reverse() : t;+  };++  scale.tickFormat = function(count, specifier) {+    return specifier == null ? tickFormat : format(specifier);+  };++  scale.nice = function(interval, step) {+    var d = domain();+    return (interval = tickInterval(interval, d[0], d[d.length - 1], step))+        ? domain(nice(d, interval))+        : scale;+  };++  scale.copy = function() {+    return copy(scale, calendar(year$$1, month$$1, week, day$$1, hour$$1, minute$$1, second$$1, millisecond$$1, format));+  };++  return scale;+}++var time = function() {+  return calendar(year, month, sunday, day, hour, minute, second, millisecond, exports.timeFormat).domain([new Date(2000, 0, 1), new Date(2000, 0, 2)]);+};++var utcTime = function() {+  return calendar(utcYear, utcMonth, utcSunday, utcDay, utcHour, utcMinute, second, millisecond, exports.utcFormat).domain([Date.UTC(2000, 0, 1), Date.UTC(2000, 0, 2)]);+};++var colors = function(s) {+  return s.match(/.{6}/g).map(function(x) {+    return "#" + x;+  });+};++var category10 = colors("1f77b4ff7f0e2ca02cd627289467bd8c564be377c27f7f7fbcbd2217becf");++var category20b = colors("393b795254a36b6ecf9c9ede6379398ca252b5cf6bcedb9c8c6d31bd9e39e7ba52e7cb94843c39ad494ad6616be7969c7b4173a55194ce6dbdde9ed6");++var category20c = colors("3182bd6baed69ecae1c6dbefe6550dfd8d3cfdae6bfdd0a231a35474c476a1d99bc7e9c0756bb19e9ac8bcbddcdadaeb636363969696bdbdbdd9d9d9");++var category20 = colors("1f77b4aec7e8ff7f0effbb782ca02c98df8ad62728ff98969467bdc5b0d58c564bc49c94e377c2f7b6d27f7f7fc7c7c7bcbd22dbdb8d17becf9edae5");++var cubehelix$3 = cubehelixLong(cubehelix(300, 0.5, 0.0), cubehelix(-240, 0.5, 1.0));++var warm = cubehelixLong(cubehelix(-100, 0.75, 0.35), cubehelix(80, 1.50, 0.8));++var cool = cubehelixLong(cubehelix(260, 0.75, 0.35), cubehelix(80, 1.50, 0.8));++var rainbow = cubehelix();++var rainbow$1 = function(t) {+  if (t < 0 || t > 1) t -= Math.floor(t);+  var ts = Math.abs(t - 0.5);+  rainbow.h = 360 * t - 100;+  rainbow.s = 1.5 - 1.5 * ts;+  rainbow.l = 0.8 - 0.9 * ts;+  return rainbow + "";+};++function ramp(range) {+  var n = range.length;+  return function(t) {+    return range[Math.max(0, Math.min(n - 1, Math.floor(t * n)))];+  };+}++var viridis = ramp(colors("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"));++var magma = ramp(colors("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"));++var inferno = ramp(colors("00000401000501010601010802010a02020c02020e03021004031204031405041706041907051b08051d09061f0a07220b07240c08260d08290e092b10092d110a30120a32140b34150b37160b39180c3c190c3e1b0c411c0c431e0c451f0c48210c4a230c4c240c4f260c51280b53290b552b0b572d0b592f0a5b310a5c320a5e340a5f3609613809623909633b09643d09653e0966400a67420a68440a68450a69470b6a490b6a4a0c6b4c0c6b4d0d6c4f0d6c510e6c520e6d540f6d550f6d57106e59106e5a116e5c126e5d126e5f136e61136e62146e64156e65156e67166e69166e6a176e6c186e6d186e6f196e71196e721a6e741a6e751b6e771c6d781c6d7a1d6d7c1d6d7d1e6d7f1e6c801f6c82206c84206b85216b87216b88226a8a226a8c23698d23698f24699025689225689326679526679727669827669a28659b29649d29649f2a63a02a63a22b62a32c61a52c60a62d60a82e5fa92e5eab2f5ead305dae305cb0315bb1325ab3325ab43359b63458b73557b93556ba3655bc3754bd3853bf3952c03a51c13a50c33b4fc43c4ec63d4dc73e4cc83f4bca404acb4149cc4248ce4347cf4446d04545d24644d34743d44842d54a41d74b3fd84c3ed94d3dda4e3cdb503bdd513ade5238df5337e05536e15635e25734e35933e45a31e55c30e65d2fe75e2ee8602de9612bea632aeb6429eb6628ec6726ed6925ee6a24ef6c23ef6e21f06f20f1711ff1731df2741cf3761bf37819f47918f57b17f57d15f67e14f68013f78212f78410f8850ff8870ef8890cf98b0bf98c0af98e09fa9008fa9207fa9407fb9606fb9706fb9906fb9b06fb9d07fc9f07fca108fca309fca50afca60cfca80dfcaa0ffcac11fcae12fcb014fcb216fcb418fbb61afbb81dfbba1ffbbc21fbbe23fac026fac228fac42afac62df9c72ff9c932f9cb35f8cd37f8cf3af7d13df7d340f6d543f6d746f5d949f5db4cf4dd4ff4df53f4e156f3e35af3e55df2e661f2e865f2ea69f1ec6df1ed71f1ef75f1f179f2f27df2f482f3f586f3f68af4f88ef5f992f6fa96f8fb9af9fc9dfafda1fcffa4"));++var plasma = ramp(colors("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"));++function sequential(interpolator) {+  var x0 = 0,+      x1 = 1,+      clamp = false;++  function scale(x) {+    var t = (x - x0) / (x1 - x0);+    return interpolator(clamp ? Math.max(0, Math.min(1, t)) : t);+  }++  scale.domain = function(_) {+    return arguments.length ? (x0 = +_[0], x1 = +_[1], scale) : [x0, x1];+  };++  scale.clamp = function(_) {+    return arguments.length ? (clamp = !!_, scale) : clamp;+  };++  scale.interpolator = function(_) {+    return arguments.length ? (interpolator = _, scale) : interpolator;+  };++  scale.copy = function() {+    return sequential(interpolator).domain([x0, x1]).clamp(clamp);+  };++  return linearish(scale);+}++var xhtml = "http://www.w3.org/1999/xhtml";++var namespaces = {+  svg: "http://www.w3.org/2000/svg",+  xhtml: xhtml,+  xlink: "http://www.w3.org/1999/xlink",+  xml: "http://www.w3.org/XML/1998/namespace",+  xmlns: "http://www.w3.org/2000/xmlns/"+};++var namespace = function(name) {+  var prefix = name += "", i = prefix.indexOf(":");+  if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1);+  return namespaces.hasOwnProperty(prefix) ? {space: namespaces[prefix], local: name} : name;+};++function creatorInherit(name) {+  return function() {+    var document = this.ownerDocument,+        uri = this.namespaceURI;+    return uri === xhtml && document.documentElement.namespaceURI === xhtml+        ? document.createElement(name)+        : document.createElementNS(uri, name);+  };+}++function creatorFixed(fullname) {+  return function() {+    return this.ownerDocument.createElementNS(fullname.space, fullname.local);+  };+}++var creator = function(name) {+  var fullname = namespace(name);+  return (fullname.local+      ? creatorFixed+      : creatorInherit)(fullname);+};++var nextId = 0;++function local() {+  return new Local;+}++function Local() {+  this._ = "@" + (++nextId).toString(36);+}++Local.prototype = local.prototype = {+  constructor: Local,+  get: function(node) {+    var id = this._;+    while (!(id in node)) if (!(node = node.parentNode)) return;+    return node[id];+  },+  set: function(node, value) {+    return node[this._] = value;+  },+  remove: function(node) {+    return this._ in node && delete node[this._];+  },+  toString: function() {+    return this._;+  }+};++var matcher = function(selector) {+  return function() {+    return this.matches(selector);+  };+};++if (typeof document !== "undefined") {+  var element = document.documentElement;+  if (!element.matches) {+    var vendorMatches = element.webkitMatchesSelector+        || element.msMatchesSelector+        || element.mozMatchesSelector+        || element.oMatchesSelector;+    matcher = function(selector) {+      return function() {+        return vendorMatches.call(this, selector);+      };+    };+  }+}++var matcher$1 = matcher;++var filterEvents = {};++exports.event = null;++if (typeof document !== "undefined") {+  var element$1 = document.documentElement;+  if (!("onmouseenter" in element$1)) {+    filterEvents = {mouseenter: "mouseover", mouseleave: "mouseout"};+  }+}++function filterContextListener(listener, index, group) {+  listener = contextListener(listener, index, group);+  return function(event) {+    var related = event.relatedTarget;+    if (!related || (related !== this && !(related.compareDocumentPosition(this) & 8))) {+      listener.call(this, event);+    }+  };+}++function contextListener(listener, index, group) {+  return function(event1) {+    var event0 = exports.event; // Events can be reentrant (e.g., focus).+    exports.event = event1;+    try {+      listener.call(this, this.__data__, index, group);+    } finally {+      exports.event = event0;+    }+  };+}++function parseTypenames$1(typenames) {+  return typenames.trim().split(/^|\s+/).map(function(t) {+    var name = "", i = t.indexOf(".");+    if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);+    return {type: t, name: name};+  });+}++function onRemove(typename) {+  return function() {+    var on = this.__on;+    if (!on) return;+    for (var j = 0, i = -1, m = on.length, o; j < m; ++j) {+      if (o = on[j], (!typename.type || o.type === typename.type) && o.name === typename.name) {+        this.removeEventListener(o.type, o.listener, o.capture);+      } else {+        on[++i] = o;+      }+    }+    if (++i) on.length = i;+    else delete this.__on;+  };+}++function onAdd(typename, value, capture) {+  var wrap = filterEvents.hasOwnProperty(typename.type) ? filterContextListener : contextListener;+  return function(d, i, group) {+    var on = this.__on, o, listener = wrap(value, i, group);+    if (on) for (var j = 0, m = on.length; j < m; ++j) {+      if ((o = on[j]).type === typename.type && o.name === typename.name) {+        this.removeEventListener(o.type, o.listener, o.capture);+        this.addEventListener(o.type, o.listener = listener, o.capture = capture);+        o.value = value;+        return;+      }+    }+    this.addEventListener(typename.type, listener, capture);+    o = {type: typename.type, name: typename.name, value: value, listener: listener, capture: capture};+    if (!on) this.__on = [o];+    else on.push(o);+  };+}++var selection_on = function(typename, value, capture) {+  var typenames = parseTypenames$1(typename + ""), i, n = typenames.length, t;++  if (arguments.length < 2) {+    var on = this.node().__on;+    if (on) for (var j = 0, m = on.length, o; j < m; ++j) {+      for (i = 0, o = on[j]; i < n; ++i) {+        if ((t = typenames[i]).type === o.type && t.name === o.name) {+          return o.value;+        }+      }+    }+    return;+  }++  on = value ? onAdd : onRemove;+  if (capture == null) capture = false;+  for (i = 0; i < n; ++i) this.each(on(typenames[i], value, capture));+  return this;+};++function customEvent(event1, listener, that, args) {+  var event0 = exports.event;+  event1.sourceEvent = exports.event;+  exports.event = event1;+  try {+    return listener.apply(that, args);+  } finally {+    exports.event = event0;+  }+}++var sourceEvent = function() {+  var current = exports.event, source;+  while (source = current.sourceEvent) current = source;+  return current;+};++var point$5 = function(node, event) {+  var svg = node.ownerSVGElement || node;++  if (svg.createSVGPoint) {+    var point = svg.createSVGPoint();+    point.x = event.clientX, point.y = event.clientY;+    point = point.matrixTransform(node.getScreenCTM().inverse());+    return [point.x, point.y];+  }++  var rect = node.getBoundingClientRect();+  return [event.clientX - rect.left - node.clientLeft, event.clientY - rect.top - node.clientTop];+};++var mouse = function(node) {+  var event = sourceEvent();+  if (event.changedTouches) event = event.changedTouches[0];+  return point$5(node, event);+};++function none$2() {}++var selector = function(selector) {+  return selector == null ? none$2 : function() {+    return this.querySelector(selector);+  };+};++var selection_select = function(select) {+  if (typeof select !== "function") select = selector(select);++  for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {+    for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) {+      if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) {+        if ("__data__" in node) subnode.__data__ = node.__data__;+        subgroup[i] = subnode;+      }+    }+  }++  return new Selection(subgroups, this._parents);+};++function empty() {+  return [];+}++var selectorAll = function(selector) {+  return selector == null ? empty : function() {+    return this.querySelectorAll(selector);+  };+};++var selection_selectAll = function(select) {+  if (typeof select !== "function") select = selectorAll(select);++  for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {+    for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {+      if (node = group[i]) {+        subgroups.push(select.call(node, node.__data__, i, group));+        parents.push(node);+      }+    }+  }++  return new Selection(subgroups, parents);+};++var selection_filter = function(match) {+  if (typeof match !== "function") match = matcher$1(match);++  for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {+    for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) {+      if ((node = group[i]) && match.call(node, node.__data__, i, group)) {+        subgroup.push(node);+      }+    }+  }++  return new Selection(subgroups, this._parents);+};++var sparse = function(update) {+  return new Array(update.length);+};++var selection_enter = function() {+  return new Selection(this._enter || this._groups.map(sparse), this._parents);+};++function EnterNode(parent, datum) {+  this.ownerDocument = parent.ownerDocument;+  this.namespaceURI = parent.namespaceURI;+  this._next = null;+  this._parent = parent;+  this.__data__ = datum;+}++EnterNode.prototype = {+  constructor: EnterNode,+  appendChild: function(child) { return this._parent.insertBefore(child, this._next); },+  insertBefore: function(child, next) { return this._parent.insertBefore(child, next); },+  querySelector: function(selector) { return this._parent.querySelector(selector); },+  querySelectorAll: function(selector) { return this._parent.querySelectorAll(selector); }+};++var constant$5 = function(x) {+  return function() {+    return x;+  };+};++var keyPrefix = "$"; // Protect against keys like “__proto__”.++function bindIndex(parent, group, enter, update, exit, data) {+  var i = 0,+      node,+      groupLength = group.length,+      dataLength = data.length;++  // Put any non-null nodes that fit into update.+  // Put any null nodes into enter.+  // Put any remaining data into enter.+  for (; i < dataLength; ++i) {+    if (node = group[i]) {+      node.__data__ = data[i];+      update[i] = node;+    } else {+      enter[i] = new EnterNode(parent, data[i]);+    }+  }++  // Put any non-null nodes that don’t fit into exit.+  for (; i < groupLength; ++i) {+    if (node = group[i]) {+      exit[i] = node;+    }+  }+}++function bindKey(parent, group, enter, update, exit, data, key) {+  var i,+      node,+      nodeByKeyValue = {},+      groupLength = group.length,+      dataLength = data.length,+      keyValues = new Array(groupLength),+      keyValue;++  // Compute the key for each node.+  // If multiple nodes have the same key, the duplicates are added to exit.+  for (i = 0; i < groupLength; ++i) {+    if (node = group[i]) {+      keyValues[i] = keyValue = keyPrefix + key.call(node, node.__data__, i, group);+      if (keyValue in nodeByKeyValue) {+        exit[i] = node;+      } else {+        nodeByKeyValue[keyValue] = node;+      }+    }+  }++  // Compute the key for each datum.+  // If there a node associated with this key, join and add it to update.+  // If there is not (or the key is a duplicate), add it to enter.+  for (i = 0; i < dataLength; ++i) {+    keyValue = keyPrefix + key.call(parent, data[i], i, data);+    if (node = nodeByKeyValue[keyValue]) {+      update[i] = node;+      node.__data__ = data[i];+      nodeByKeyValue[keyValue] = null;+    } else {+      enter[i] = new EnterNode(parent, data[i]);+    }+  }++  // Add any remaining nodes that were not bound to data to exit.+  for (i = 0; i < groupLength; ++i) {+    if ((node = group[i]) && (nodeByKeyValue[keyValues[i]] === node)) {+      exit[i] = node;+    }+  }+}++var selection_data = function(value, key) {+  if (!value) {+    data = new Array(this.size()), j = -1;+    this.each(function(d) { data[++j] = d; });+    return data;+  }++  var bind = key ? bindKey : bindIndex,+      parents = this._parents,+      groups = this._groups;++  if (typeof value !== "function") value = constant$5(value);++  for (var m = groups.length, update = new Array(m), enter = new Array(m), exit = new Array(m), j = 0; j < m; ++j) {+    var parent = parents[j],+        group = groups[j],+        groupLength = group.length,+        data = value.call(parent, parent && parent.__data__, j, parents),+        dataLength = data.length,+        enterGroup = enter[j] = new Array(dataLength),+        updateGroup = update[j] = new Array(dataLength),+        exitGroup = exit[j] = new Array(groupLength);++    bind(parent, group, enterGroup, updateGroup, exitGroup, data, key);++    // Now connect the enter nodes to their following update node, such that+    // appendChild can insert the materialized enter node before this node,+    // rather than at the end of the parent node.+    for (var i0 = 0, i1 = 0, previous, next; i0 < dataLength; ++i0) {+      if (previous = enterGroup[i0]) {+        if (i0 >= i1) i1 = i0 + 1;+        while (!(next = updateGroup[i1]) && ++i1 < dataLength);+        previous._next = next || null;+      }+    }+  }++  update = new Selection(update, parents);+  update._enter = enter;+  update._exit = exit;+  return update;+};++var selection_exit = function() {+  return new Selection(this._exit || this._groups.map(sparse), this._parents);+};++var selection_merge = function(selection) {++  for (var groups0 = this._groups, groups1 = selection._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) {+    for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) {+      if (node = group0[i] || group1[i]) {+        merge[i] = node;+      }+    }+  }++  for (; j < m0; ++j) {+    merges[j] = groups0[j];+  }++  return new Selection(merges, this._parents);+};++var selection_order = function() {++  for (var groups = this._groups, j = -1, m = groups.length; ++j < m;) {+    for (var group = groups[j], i = group.length - 1, next = group[i], node; --i >= 0;) {+      if (node = group[i]) {+        if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);+        next = node;+      }+    }+  }++  return this;+};++var selection_sort = function(compare) {+  if (!compare) compare = ascending$2;++  function compareNode(a, b) {+    return a && b ? compare(a.__data__, b.__data__) : !a - !b;+  }++  for (var groups = this._groups, m = groups.length, sortgroups = new Array(m), j = 0; j < m; ++j) {+    for (var group = groups[j], n = group.length, sortgroup = sortgroups[j] = new Array(n), node, i = 0; i < n; ++i) {+      if (node = group[i]) {+        sortgroup[i] = node;+      }+    }+    sortgroup.sort(compareNode);+  }++  return new Selection(sortgroups, this._parents).order();+};++function ascending$2(a, b) {+  return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;+}++var selection_call = function() {+  var callback = arguments[0];+  arguments[0] = this;+  callback.apply(null, arguments);+  return this;+};++var selection_nodes = function() {+  var nodes = new Array(this.size()), i = -1;+  this.each(function() { nodes[++i] = this; });+  return nodes;+};++var selection_node = function() {++  for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {+    for (var group = groups[j], i = 0, n = group.length; i < n; ++i) {+      var node = group[i];+      if (node) return node;+    }+  }++  return null;+};++var selection_size = function() {+  var size = 0;+  this.each(function() { ++size; });+  return size;+};++var selection_empty = function() {+  return !this.node();+};++var selection_each = function(callback) {++  for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {+    for (var group = groups[j], i = 0, n = group.length, node; i < n; ++i) {+      if (node = group[i]) callback.call(node, node.__data__, i, group);+    }+  }++  return this;+};++function attrRemove(name) {+  return function() {+    this.removeAttribute(name);+  };+}++function attrRemoveNS(fullname) {+  return function() {+    this.removeAttributeNS(fullname.space, fullname.local);+  };+}++function attrConstant(name, value) {+  return function() {+    this.setAttribute(name, value);+  };+}++function attrConstantNS(fullname, value) {+  return function() {+    this.setAttributeNS(fullname.space, fullname.local, value);+  };+}++function attrFunction(name, value) {+  return function() {+    var v = value.apply(this, arguments);+    if (v == null) this.removeAttribute(name);+    else this.setAttribute(name, v);+  };+}++function attrFunctionNS(fullname, value) {+  return function() {+    var v = value.apply(this, arguments);+    if (v == null) this.removeAttributeNS(fullname.space, fullname.local);+    else this.setAttributeNS(fullname.space, fullname.local, v);+  };+}++var selection_attr = function(name, value) {+  var fullname = namespace(name);++  if (arguments.length < 2) {+    var node = this.node();+    return fullname.local+        ? node.getAttributeNS(fullname.space, fullname.local)+        : node.getAttribute(fullname);+  }++  return this.each((value == null+      ? (fullname.local ? attrRemoveNS : attrRemove) : (typeof value === "function"+      ? (fullname.local ? attrFunctionNS : attrFunction)+      : (fullname.local ? attrConstantNS : attrConstant)))(fullname, value));+};++var window = function(node) {+  return (node.ownerDocument && node.ownerDocument.defaultView) // node is a Node+      || (node.document && node) // node is a Window+      || node.defaultView; // node is a Document+};++function styleRemove(name) {+  return function() {+    this.style.removeProperty(name);+  };+}++function styleConstant(name, value, priority) {+  return function() {+    this.style.setProperty(name, value, priority);+  };+}++function styleFunction(name, value, priority) {+  return function() {+    var v = value.apply(this, arguments);+    if (v == null) this.style.removeProperty(name);+    else this.style.setProperty(name, v, priority);+  };+}++var selection_style = function(name, value, priority) {+  var node;+  return arguments.length > 1+      ? this.each((value == null+            ? styleRemove : typeof value === "function"+            ? styleFunction+            : styleConstant)(name, value, priority == null ? "" : priority))+      : window(node = this.node())+          .getComputedStyle(node, null)+          .getPropertyValue(name);+};++function propertyRemove(name) {+  return function() {+    delete this[name];+  };+}++function propertyConstant(name, value) {+  return function() {+    this[name] = value;+  };+}++function propertyFunction(name, value) {+  return function() {+    var v = value.apply(this, arguments);+    if (v == null) delete this[name];+    else this[name] = v;+  };+}++var selection_property = function(name, value) {+  return arguments.length > 1+      ? this.each((value == null+          ? propertyRemove : typeof value === "function"+          ? propertyFunction+          : propertyConstant)(name, value))+      : this.node()[name];+};++function classArray(string) {+  return string.trim().split(/^|\s+/);+}++function classList(node) {+  return node.classList || new ClassList(node);+}++function ClassList(node) {+  this._node = node;+  this._names = classArray(node.getAttribute("class") || "");+}++ClassList.prototype = {+  add: function(name) {+    var i = this._names.indexOf(name);+    if (i < 0) {+      this._names.push(name);+      this._node.setAttribute("class", this._names.join(" "));+    }+  },+  remove: function(name) {+    var i = this._names.indexOf(name);+    if (i >= 0) {+      this._names.splice(i, 1);+      this._node.setAttribute("class", this._names.join(" "));+    }+  },+  contains: function(name) {+    return this._names.indexOf(name) >= 0;+  }+};++function classedAdd(node, names) {+  var list = classList(node), i = -1, n = names.length;+  while (++i < n) list.add(names[i]);+}++function classedRemove(node, names) {+  var list = classList(node), i = -1, n = names.length;+  while (++i < n) list.remove(names[i]);+}++function classedTrue(names) {+  return function() {+    classedAdd(this, names);+  };+}++function classedFalse(names) {+  return function() {+    classedRemove(this, names);+  };+}++function classedFunction(names, value) {+  return function() {+    (value.apply(this, arguments) ? classedAdd : classedRemove)(this, names);+  };+}++var selection_classed = function(name, value) {+  var names = classArray(name + "");++  if (arguments.length < 2) {+    var list = classList(this.node()), i = -1, n = names.length;+    while (++i < n) if (!list.contains(names[i])) return false;+    return true;+  }++  return this.each((typeof value === "function"+      ? classedFunction : value+      ? classedTrue+      : classedFalse)(names, value));+};++function textRemove() {+  this.textContent = "";+}++function textConstant(value) {+  return function() {+    this.textContent = value;+  };+}++function textFunction(value) {+  return function() {+    var v = value.apply(this, arguments);+    this.textContent = v == null ? "" : v;+  };+}++var selection_text = function(value) {+  return arguments.length+      ? this.each(value == null+          ? textRemove : (typeof value === "function"+          ? textFunction+          : textConstant)(value))+      : this.node().textContent;+};++function htmlRemove() {+  this.innerHTML = "";+}++function htmlConstant(value) {+  return function() {+    this.innerHTML = value;+  };+}++function htmlFunction(value) {+  return function() {+    var v = value.apply(this, arguments);+    this.innerHTML = v == null ? "" : v;+  };+}++var selection_html = function(value) {+  return arguments.length+      ? this.each(value == null+          ? htmlRemove : (typeof value === "function"+          ? htmlFunction+          : htmlConstant)(value))+      : this.node().innerHTML;+};++function raise$1() {+  if (this.nextSibling) this.parentNode.appendChild(this);+}++var selection_raise = function() {+  return this.each(raise$1);+};++function lower() {+  if (this.previousSibling) this.parentNode.insertBefore(this, this.parentNode.firstChild);+}++var selection_lower = function() {+  return this.each(lower);+};++var selection_append = function(name) {+  var create = typeof name === "function" ? name : creator(name);+  return this.select(function() {+    return this.appendChild(create.apply(this, arguments));+  });+};++function constantNull() {+  return null;+}++var selection_insert = function(name, before) {+  var create = typeof name === "function" ? name : creator(name),+      select = before == null ? constantNull : typeof before === "function" ? before : selector(before);+  return this.select(function() {+    return this.insertBefore(create.apply(this, arguments), select.apply(this, arguments) || null);+  });+};++function remove() {+  var parent = this.parentNode;+  if (parent) parent.removeChild(this);+}++var selection_remove = function() {+  return this.each(remove);+};++var selection_datum = function(value) {+  return arguments.length+      ? this.property("__data__", value)+      : this.node().__data__;+};++function dispatchEvent(node, type, params) {+  var window$$1 = window(node),+      event = window$$1.CustomEvent;++  if (event) {+    event = new event(type, params);+  } else {+    event = window$$1.document.createEvent("Event");+    if (params) event.initEvent(type, params.bubbles, params.cancelable), event.detail = params.detail;+    else event.initEvent(type, false, false);+  }++  node.dispatchEvent(event);+}++function dispatchConstant(type, params) {+  return function() {+    return dispatchEvent(this, type, params);+  };+}++function dispatchFunction(type, params) {+  return function() {+    return dispatchEvent(this, type, params.apply(this, arguments));+  };+}++var selection_dispatch = function(type, params) {+  return this.each((typeof params === "function"+      ? dispatchFunction+      : dispatchConstant)(type, params));+};++var root = [null];++function Selection(groups, parents) {+  this._groups = groups;+  this._parents = parents;+}++function selection() {+  return new Selection([[document.documentElement]], root);+}++Selection.prototype = selection.prototype = {+  constructor: Selection,+  select: selection_select,+  selectAll: selection_selectAll,+  filter: selection_filter,+  data: selection_data,+  enter: selection_enter,+  exit: selection_exit,+  merge: selection_merge,+  order: selection_order,+  sort: selection_sort,+  call: selection_call,+  nodes: selection_nodes,+  node: selection_node,+  size: selection_size,+  empty: selection_empty,+  each: selection_each,+  attr: selection_attr,+  style: selection_style,+  property: selection_property,+  classed: selection_classed,+  text: selection_text,+  html: selection_html,+  raise: selection_raise,+  lower: selection_lower,+  append: selection_append,+  insert: selection_insert,+  remove: selection_remove,+  datum: selection_datum,+  on: selection_on,+  dispatch: selection_dispatch+};++var select = function(selector) {+  return typeof selector === "string"+      ? new Selection([[document.querySelector(selector)]], [document.documentElement])+      : new Selection([[selector]], root);+};++var selectAll = function(selector) {+  return typeof selector === "string"+      ? new Selection([document.querySelectorAll(selector)], [document.documentElement])+      : new Selection([selector == null ? [] : selector], root);+};++var touch = function(node, touches, identifier) {+  if (arguments.length < 3) identifier = touches, touches = sourceEvent().changedTouches;++  for (var i = 0, n = touches ? touches.length : 0, touch; i < n; ++i) {+    if ((touch = touches[i]).identifier === identifier) {+      return point$5(node, touch);+    }+  }++  return null;+};++var touches = function(node, touches) {+  if (touches == null) touches = sourceEvent().touches;++  for (var i = 0, n = touches ? touches.length : 0, points = new Array(n); i < n; ++i) {+    points[i] = point$5(node, touches[i]);+  }++  return points;+};++var emptyOn = dispatch("start", "end", "interrupt");+var emptyTween = [];++var CREATED = 0;+var SCHEDULED = 1;+var STARTING = 2;+var STARTED = 3;+var RUNNING = 4;+var ENDING = 5;+var ENDED = 6;++var schedule = function(node, name, id, index, group, timing) {+  var schedules = node.__transition;+  if (!schedules) node.__transition = {};+  else if (id in schedules) return;+  create(node, id, {+    name: name,+    index: index, // For context during callback.+    group: group, // For context during callback.+    on: emptyOn,+    tween: emptyTween,+    time: timing.time,+    delay: timing.delay,+    duration: timing.duration,+    ease: timing.ease,+    timer: null,+    state: CREATED+  });+};++function init(node, id) {+  var schedule = node.__transition;+  if (!schedule || !(schedule = schedule[id]) || schedule.state > CREATED) throw new Error("too late");+  return schedule;+}++function set$3(node, id) {+  var schedule = node.__transition;+  if (!schedule || !(schedule = schedule[id]) || schedule.state > STARTING) throw new Error("too late");+  return schedule;+}++function get$1(node, id) {+  var schedule = node.__transition;+  if (!schedule || !(schedule = schedule[id])) throw new Error("too late");+  return schedule;+}++function create(node, id, self) {+  var schedules = node.__transition,+      tween;++  // Initialize the self timer when the transition is created.+  // Note the actual delay is not known until the first callback!+  schedules[id] = self;+  self.timer = timer(schedule, 0, self.time);++  function schedule(elapsed) {+    self.state = SCHEDULED;+    self.timer.restart(start, self.delay, self.time);++    // If the elapsed delay is less than our first sleep, start immediately.+    if (self.delay <= elapsed) start(elapsed - self.delay);+  }++  function start(elapsed) {+    var i, j, n, o;++    // If the state is not SCHEDULED, then we previously errored on start.+    if (self.state !== SCHEDULED) return stop();++    for (i in schedules) {+      o = schedules[i];+      if (o.name !== self.name) continue;++      // While this element already has a starting transition during this frame,+      // defer starting an interrupting transition until that transition has a+      // chance to tick (and possibly end); see d3/d3-transition#54!+      if (o.state === STARTED) return timeout$1(start);++      // Interrupt the active transition, if any.+      // Dispatch the interrupt event.+      if (o.state === RUNNING) {+        o.state = ENDED;+        o.timer.stop();+        o.on.call("interrupt", node, node.__data__, o.index, o.group);+        delete schedules[i];+      }++      // Cancel any pre-empted transitions. No interrupt event is dispatched+      // because the cancelled transitions never started. Note that this also+      // removes this transition from the pending list!+      else if (+i < id) {+        o.state = ENDED;+        o.timer.stop();+        delete schedules[i];+      }+    }++    // Defer the first tick to end of the current frame; see d3/d3#1576.+    // Note the transition may be canceled after start and before the first tick!+    // Note this must be scheduled before the start event; see d3/d3-transition#16!+    // Assuming this is successful, subsequent callbacks go straight to tick.+    timeout$1(function() {+      if (self.state === STARTED) {+        self.state = RUNNING;+        self.timer.restart(tick, self.delay, self.time);+        tick(elapsed);+      }+    });++    // Dispatch the start event.+    // Note this must be done before the tween are initialized.+    self.state = STARTING;+    self.on.call("start", node, node.__data__, self.index, self.group);+    if (self.state !== STARTING) return; // interrupted+    self.state = STARTED;++    // Initialize the tween, deleting null tween.+    tween = new Array(n = self.tween.length);+    for (i = 0, j = -1; i < n; ++i) {+      if (o = self.tween[i].value.call(node, node.__data__, self.index, self.group)) {+        tween[++j] = o;+      }+    }+    tween.length = j + 1;+  }++  function tick(elapsed) {+    var t = elapsed < self.duration ? self.ease.call(null, elapsed / self.duration) : (self.timer.restart(stop), self.state = ENDING, 1),+        i = -1,+        n = tween.length;++    while (++i < n) {+      tween[i].call(null, t);+    }++    // Dispatch the end event.+    if (self.state === ENDING) {+      self.on.call("end", node, node.__data__, self.index, self.group);+      stop();+    }+  }++  function stop() {+    self.state = ENDED;+    self.timer.stop();+    delete schedules[id];+    for (var i in schedules) return; // eslint-disable-line no-unused-vars+    delete node.__transition;+  }+}++var interrupt = function(node, name) {+  var schedules = node.__transition,+      schedule,+      active,+      empty = true,+      i;++  if (!schedules) return;++  name = name == null ? null : name + "";++  for (i in schedules) {+    if ((schedule = schedules[i]).name !== name) { empty = false; continue; }+    active = schedule.state > STARTING && schedule.state < ENDING;+    schedule.state = ENDED;+    schedule.timer.stop();+    if (active) schedule.on.call("interrupt", node, node.__data__, schedule.index, schedule.group);+    delete schedules[i];+  }++  if (empty) delete node.__transition;+};++var selection_interrupt = function(name) {+  return this.each(function() {+    interrupt(this, name);+  });+};++function tweenRemove(id, name) {+  var tween0, tween1;+  return function() {+    var schedule = set$3(this, id),+        tween = schedule.tween;++    // If this node shared tween with the previous node,+    // just assign the updated shared tween and we’re done!+    // Otherwise, copy-on-write.+    if (tween !== tween0) {+      tween1 = tween0 = tween;+      for (var i = 0, n = tween1.length; i < n; ++i) {+        if (tween1[i].name === name) {+          tween1 = tween1.slice();+          tween1.splice(i, 1);+          break;+        }+      }+    }++    schedule.tween = tween1;+  };+}++function tweenFunction(id, name, value) {+  var tween0, tween1;+  if (typeof value !== "function") throw new Error;+  return function() {+    var schedule = set$3(this, id),+        tween = schedule.tween;++    // If this node shared tween with the previous node,+    // just assign the updated shared tween and we’re done!+    // Otherwise, copy-on-write.+    if (tween !== tween0) {+      tween1 = (tween0 = tween).slice();+      for (var t = {name: name, value: value}, i = 0, n = tween1.length; i < n; ++i) {+        if (tween1[i].name === name) {+          tween1[i] = t;+          break;+        }+      }+      if (i === n) tween1.push(t);+    }++    schedule.tween = tween1;+  };+}++var transition_tween = function(name, value) {+  var id = this._id;++  name += "";++  if (arguments.length < 2) {+    var tween = get$1(this.node(), id).tween;+    for (var i = 0, n = tween.length, t; i < n; ++i) {+      if ((t = tween[i]).name === name) {+        return t.value;+      }+    }+    return null;+  }++  return this.each((value == null ? tweenRemove : tweenFunction)(id, name, value));+};++function tweenValue(transition, name, value) {+  var id = transition._id;++  transition.each(function() {+    var schedule = set$3(this, id);+    (schedule.value || (schedule.value = {}))[name] = value.apply(this, arguments);+  });++  return function(node) {+    return get$1(node, id).value[name];+  };+}++var interpolate$1 = function(a, b) {+  var c;+  return (typeof b === "number" ? interpolateNumber+      : b instanceof color ? interpolateRgb+      : (c = color(b)) ? (b = c, interpolateRgb)+      : interpolateString)(a, b);+};++function attrRemove$1(name) {+  return function() {+    this.removeAttribute(name);+  };+}++function attrRemoveNS$1(fullname) {+  return function() {+    this.removeAttributeNS(fullname.space, fullname.local);+  };+}++function attrConstant$1(name, interpolate$$1, value1) {+  var value00,+      interpolate0;+  return function() {+    var value0 = this.getAttribute(name);+    return value0 === value1 ? null+        : value0 === value00 ? interpolate0+        : interpolate0 = interpolate$$1(value00 = value0, value1);+  };+}++function attrConstantNS$1(fullname, interpolate$$1, value1) {+  var value00,+      interpolate0;+  return function() {+    var value0 = this.getAttributeNS(fullname.space, fullname.local);+    return value0 === value1 ? null+        : value0 === value00 ? interpolate0+        : interpolate0 = interpolate$$1(value00 = value0, value1);+  };+}++function attrFunction$1(name, interpolate$$1, value) {+  var value00,+      value10,+      interpolate0;+  return function() {+    var value0, value1 = value(this);+    if (value1 == null) return void this.removeAttribute(name);+    value0 = this.getAttribute(name);+    return value0 === value1 ? null+        : value0 === value00 && value1 === value10 ? interpolate0+        : interpolate0 = interpolate$$1(value00 = value0, value10 = value1);+  };+}++function attrFunctionNS$1(fullname, interpolate$$1, value) {+  var value00,+      value10,+      interpolate0;+  return function() {+    var value0, value1 = value(this);+    if (value1 == null) return void this.removeAttributeNS(fullname.space, fullname.local);+    value0 = this.getAttributeNS(fullname.space, fullname.local);+    return value0 === value1 ? null+        : value0 === value00 && value1 === value10 ? interpolate0+        : interpolate0 = interpolate$$1(value00 = value0, value10 = value1);+  };+}++var transition_attr = function(name, value) {+  var fullname = namespace(name), i = fullname === "transform" ? interpolateTransformSvg : interpolate$1;+  return this.attrTween(name, typeof value === "function"+      ? (fullname.local ? attrFunctionNS$1 : attrFunction$1)(fullname, i, tweenValue(this, "attr." + name, value))+      : value == null ? (fullname.local ? attrRemoveNS$1 : attrRemove$1)(fullname)+      : (fullname.local ? attrConstantNS$1 : attrConstant$1)(fullname, i, value));+};++function attrTweenNS(fullname, value) {+  function tween() {+    var node = this, i = value.apply(node, arguments);+    return i && function(t) {+      node.setAttributeNS(fullname.space, fullname.local, i(t));+    };+  }+  tween._value = value;+  return tween;+}++function attrTween(name, value) {+  function tween() {+    var node = this, i = value.apply(node, arguments);+    return i && function(t) {+      node.setAttribute(name, i(t));+    };+  }+  tween._value = value;+  return tween;+}++var transition_attrTween = function(name, value) {+  var key = "attr." + name;+  if (arguments.length < 2) return (key = this.tween(key)) && key._value;+  if (value == null) return this.tween(key, null);+  if (typeof value !== "function") throw new Error;+  var fullname = namespace(name);+  return this.tween(key, (fullname.local ? attrTweenNS : attrTween)(fullname, value));+};++function delayFunction(id, value) {+  return function() {+    init(this, id).delay = +value.apply(this, arguments);+  };+}++function delayConstant(id, value) {+  return value = +value, function() {+    init(this, id).delay = value;+  };+}++var transition_delay = function(value) {+  var id = this._id;++  return arguments.length+      ? this.each((typeof value === "function"+          ? delayFunction+          : delayConstant)(id, value))+      : get$1(this.node(), id).delay;+};++function durationFunction(id, value) {+  return function() {+    set$3(this, id).duration = +value.apply(this, arguments);+  };+}++function durationConstant(id, value) {+  return value = +value, function() {+    set$3(this, id).duration = value;+  };+}++var transition_duration = function(value) {+  var id = this._id;++  return arguments.length+      ? this.each((typeof value === "function"+          ? durationFunction+          : durationConstant)(id, value))+      : get$1(this.node(), id).duration;+};++function easeConstant(id, value) {+  if (typeof value !== "function") throw new Error;+  return function() {+    set$3(this, id).ease = value;+  };+}++var transition_ease = function(value) {+  var id = this._id;++  return arguments.length+      ? this.each(easeConstant(id, value))+      : get$1(this.node(), id).ease;+};++var transition_filter = function(match) {+  if (typeof match !== "function") match = matcher$1(match);++  for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {+    for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) {+      if ((node = group[i]) && match.call(node, node.__data__, i, group)) {+        subgroup.push(node);+      }+    }+  }++  return new Transition(subgroups, this._parents, this._name, this._id);+};++var transition_merge = function(transition) {+  if (transition._id !== this._id) throw new Error;++  for (var groups0 = this._groups, groups1 = transition._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) {+    for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) {+      if (node = group0[i] || group1[i]) {+        merge[i] = node;+      }+    }+  }++  for (; j < m0; ++j) {+    merges[j] = groups0[j];+  }++  return new Transition(merges, this._parents, this._name, this._id);+};++function start$1(name) {+  return (name + "").trim().split(/^|\s+/).every(function(t) {+    var i = t.indexOf(".");+    if (i >= 0) t = t.slice(0, i);+    return !t || t === "start";+  });+}++function onFunction(id, name, listener) {+  var on0, on1, sit = start$1(name) ? init : set$3;+  return function() {+    var schedule = sit(this, id),+        on = schedule.on;++    // If this node shared a dispatch with the previous node,+    // just assign the updated shared dispatch and we’re done!+    // Otherwise, copy-on-write.+    if (on !== on0) (on1 = (on0 = on).copy()).on(name, listener);++    schedule.on = on1;+  };+}++var transition_on = function(name, listener) {+  var id = this._id;++  return arguments.length < 2+      ? get$1(this.node(), id).on.on(name)+      : this.each(onFunction(id, name, listener));+};++function removeFunction(id) {+  return function() {+    var parent = this.parentNode;+    for (var i in this.__transition) if (+i !== id) return;+    if (parent) parent.removeChild(this);+  };+}++var transition_remove = function() {+  return this.on("end.remove", removeFunction(this._id));+};++var transition_select = function(select$$1) {+  var name = this._name,+      id = this._id;++  if (typeof select$$1 !== "function") select$$1 = selector(select$$1);++  for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {+    for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) {+      if ((node = group[i]) && (subnode = select$$1.call(node, node.__data__, i, group))) {+        if ("__data__" in node) subnode.__data__ = node.__data__;+        subgroup[i] = subnode;+        schedule(subgroup[i], name, id, i, subgroup, get$1(node, id));+      }+    }+  }++  return new Transition(subgroups, this._parents, name, id);+};++var transition_selectAll = function(select$$1) {+  var name = this._name,+      id = this._id;++  if (typeof select$$1 !== "function") select$$1 = selectorAll(select$$1);++  for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {+    for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {+      if (node = group[i]) {+        for (var children = select$$1.call(node, node.__data__, i, group), child, inherit = get$1(node, id), k = 0, l = children.length; k < l; ++k) {+          if (child = children[k]) {+            schedule(child, name, id, k, children, inherit);+          }+        }+        subgroups.push(children);+        parents.push(node);+      }+    }+  }++  return new Transition(subgroups, parents, name, id);+};++var Selection$1 = selection.prototype.constructor;++var transition_selection = function() {+  return new Selection$1(this._groups, this._parents);+};++function styleRemove$1(name, interpolate$$1) {+  var value00,+      value10,+      interpolate0;+  return function() {+    var style = window(this).getComputedStyle(this, null),+        value0 = style.getPropertyValue(name),+        value1 = (this.style.removeProperty(name), style.getPropertyValue(name));+    return value0 === value1 ? null+        : value0 === value00 && value1 === value10 ? interpolate0+        : interpolate0 = interpolate$$1(value00 = value0, value10 = value1);+  };+}++function styleRemoveEnd(name) {+  return function() {+    this.style.removeProperty(name);+  };+}++function styleConstant$1(name, interpolate$$1, value1) {+  var value00,+      interpolate0;+  return function() {+    var value0 = window(this).getComputedStyle(this, null).getPropertyValue(name);+    return value0 === value1 ? null+        : value0 === value00 ? interpolate0+        : interpolate0 = interpolate$$1(value00 = value0, value1);+  };+}++function styleFunction$1(name, interpolate$$1, value) {+  var value00,+      value10,+      interpolate0;+  return function() {+    var style = window(this).getComputedStyle(this, null),+        value0 = style.getPropertyValue(name),+        value1 = value(this);+    if (value1 == null) value1 = (this.style.removeProperty(name), style.getPropertyValue(name));+    return value0 === value1 ? null+        : value0 === value00 && value1 === value10 ? interpolate0+        : interpolate0 = interpolate$$1(value00 = value0, value10 = value1);+  };+}++var transition_style = function(name, value, priority) {+  var i = (name += "") === "transform" ? interpolateTransformCss : interpolate$1;+  return value == null ? this+          .styleTween(name, styleRemove$1(name, i))+          .on("end.style." + name, styleRemoveEnd(name))+      : this.styleTween(name, typeof value === "function"+          ? styleFunction$1(name, i, tweenValue(this, "style." + name, value))+          : styleConstant$1(name, i, value), priority);+};++function styleTween(name, value, priority) {+  function tween() {+    var node = this, i = value.apply(node, arguments);+    return i && function(t) {+      node.style.setProperty(name, i(t), priority);+    };+  }+  tween._value = value;+  return tween;+}++var transition_styleTween = function(name, value, priority) {+  var key = "style." + (name += "");+  if (arguments.length < 2) return (key = this.tween(key)) && key._value;+  if (value == null) return this.tween(key, null);+  if (typeof value !== "function") throw new Error;+  return this.tween(key, styleTween(name, value, priority == null ? "" : priority));+};++function textConstant$1(value) {+  return function() {+    this.textContent = value;+  };+}++function textFunction$1(value) {+  return function() {+    var value1 = value(this);+    this.textContent = value1 == null ? "" : value1;+  };+}++var transition_text = function(value) {+  return this.tween("text", typeof value === "function"+      ? textFunction$1(tweenValue(this, "text", value))+      : textConstant$1(value == null ? "" : value + ""));+};++var transition_transition = function() {+  var name = this._name,+      id0 = this._id,+      id1 = newId();++  for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) {+    for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {+      if (node = group[i]) {+        var inherit = get$1(node, id0);+        schedule(node, name, id1, i, group, {+          time: inherit.time + inherit.delay + inherit.duration,+          delay: 0,+          duration: inherit.duration,+          ease: inherit.ease+        });+      }+    }+  }++  return new Transition(groups, this._parents, name, id1);+};++var id = 0;++function Transition(groups, parents, name, id) {+  this._groups = groups;+  this._parents = parents;+  this._name = name;+  this._id = id;+}++function transition(name) {+  return selection().transition(name);+}++function newId() {+  return ++id;+}++var selection_prototype = selection.prototype;++Transition.prototype = transition.prototype = {+  constructor: Transition,+  select: transition_select,+  selectAll: transition_selectAll,+  filter: transition_filter,+  merge: transition_merge,+  selection: transition_selection,+  transition: transition_transition,+  call: selection_prototype.call,+  nodes: selection_prototype.nodes,+  node: selection_prototype.node,+  size: selection_prototype.size,+  empty: selection_prototype.empty,+  each: selection_prototype.each,+  on: transition_on,+  attr: transition_attr,+  attrTween: transition_attrTween,+  style: transition_style,+  styleTween: transition_styleTween,+  text: transition_text,+  remove: transition_remove,+  tween: transition_tween,+  delay: transition_delay,+  duration: transition_duration,+  ease: transition_ease+};++var defaultTiming = {+  time: null, // Set on use.+  delay: 0,+  duration: 250,+  ease: cubicInOut+};++function inherit(node, id) {+  var timing;+  while (!(timing = node.__transition) || !(timing = timing[id])) {+    if (!(node = node.parentNode)) {+      return defaultTiming.time = now(), defaultTiming;+    }+  }+  return timing;+}++var selection_transition = function(name) {+  var id,+      timing;++  if (name instanceof Transition) {+    id = name._id, name = name._name;+  } else {+    id = newId(), (timing = defaultTiming).time = now(), name = name == null ? null : name + "";+  }++  for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) {+    for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {+      if (node = group[i]) {+        schedule(node, name, id, i, group, timing || inherit(node, id));+      }+    }+  }++  return new Transition(groups, this._parents, name, id);+};++selection.prototype.interrupt = selection_interrupt;+selection.prototype.transition = selection_transition;++var root$1 = [null];++var active = function(node, name) {+  var schedules = node.__transition,+      schedule,+      i;++  if (schedules) {+    name = name == null ? null : name + "";+    for (i in schedules) {+      if ((schedule = schedules[i]).state > SCHEDULED && schedule.name === name) {+        return new Transition([[node]], root$1, name, +i);+      }+    }+  }++  return null;+};++var slice$4 = Array.prototype.slice;++var identity$5 = function(x) {+  return x;+};++var top = 1;+var right = 2;+var bottom = 3;+var left = 4;+var epsilon$2 = 1e-6;++function translateX(scale0, scale1, d) {+  var x = scale0(d);+  return "translate(" + (isFinite(x) ? x : scale1(d)) + ",0)";+}++function translateY(scale0, scale1, d) {+  var y = scale0(d);+  return "translate(0," + (isFinite(y) ? y : scale1(d)) + ")";+}++function center(scale) {+  var offset = scale.bandwidth() / 2;+  if (scale.round()) offset = Math.round(offset);+  return function(d) {+    return scale(d) + offset;+  };+}++function entering() {+  return !this.__axis;+}++function axis(orient, scale) {+  var tickArguments = [],+      tickValues = null,+      tickFormat = null,+      tickSizeInner = 6,+      tickSizeOuter = 6,+      tickPadding = 3;++  function axis(context) {+    var values = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments) : scale.domain()) : tickValues,+        format = tickFormat == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments) : identity$5) : tickFormat,+        spacing = Math.max(tickSizeInner, 0) + tickPadding,+        transform = orient === top || orient === bottom ? translateX : translateY,+        range = scale.range(),+        range0 = range[0] + 0.5,+        range1 = range[range.length - 1] + 0.5,+        position = (scale.bandwidth ? center : identity$5)(scale.copy()),+        selection = context.selection ? context.selection() : context,+        path = selection.selectAll(".domain").data([null]),+        tick = selection.selectAll(".tick").data(values, scale).order(),+        tickExit = tick.exit(),+        tickEnter = tick.enter().append("g").attr("class", "tick"),+        line = tick.select("line"),+        text = tick.select("text"),+        k = orient === top || orient === left ? -1 : 1,+        x, y = orient === left || orient === right ? (x = "x", "y") : (x = "y", "x");++    path = path.merge(path.enter().insert("path", ".tick")+        .attr("class", "domain")+        .attr("stroke", "#000"));++    tick = tick.merge(tickEnter);++    line = line.merge(tickEnter.append("line")+        .attr("stroke", "#000")+        .attr(x + "2", k * tickSizeInner)+        .attr(y + "1", 0.5)+        .attr(y + "2", 0.5));++    text = text.merge(tickEnter.append("text")+        .attr("fill", "#000")+        .attr(x, k * spacing)+        .attr(y, 0.5)+        .attr("dy", orient === top ? "0em" : orient === bottom ? "0.71em" : "0.32em"));++    if (context !== selection) {+      path = path.transition(context);+      tick = tick.transition(context);+      line = line.transition(context);+      text = text.transition(context);++      tickExit = tickExit.transition(context)+          .attr("opacity", epsilon$2)+          .attr("transform", function(d) { return transform(position, this.parentNode.__axis || position, d); });++      tickEnter+          .attr("opacity", epsilon$2)+          .attr("transform", function(d) { return transform(this.parentNode.__axis || position, position, d); });+    }++    tickExit.remove();++    path+        .attr("d", orient === left || orient == right+            ? "M" + k * tickSizeOuter + "," + range0 + "H0.5V" + range1 + "H" + k * tickSizeOuter+            : "M" + range0 + "," + k * tickSizeOuter + "V0.5H" + range1 + "V" + k * tickSizeOuter);++    tick+        .attr("opacity", 1)+        .attr("transform", function(d) { return transform(position, position, d); });++    line+        .attr(x + "2", k * tickSizeInner);++    text+        .attr(x, k * spacing)+        .text(format);++    selection.filter(entering)+        .attr("fill", "none")+        .attr("font-size", 10)+        .attr("font-family", "sans-serif")+        .attr("text-anchor", orient === right ? "start" : orient === left ? "end" : "middle");++    selection+        .each(function() { this.__axis = position; });+  }++  axis.scale = function(_) {+    return arguments.length ? (scale = _, axis) : scale;+  };++  axis.ticks = function() {+    return tickArguments = slice$4.call(arguments), axis;+  };++  axis.tickArguments = function(_) {+    return arguments.length ? (tickArguments = _ == null ? [] : slice$4.call(_), axis) : tickArguments.slice();+  };++  axis.tickValues = function(_) {+    return arguments.length ? (tickValues = _ == null ? null : slice$4.call(_), axis) : tickValues && tickValues.slice();+  };++  axis.tickFormat = function(_) {+    return arguments.length ? (tickFormat = _, axis) : tickFormat;+  };++  axis.tickSize = function(_) {+    return arguments.length ? (tickSizeInner = tickSizeOuter = +_, axis) : tickSizeInner;+  };++  axis.tickSizeInner = function(_) {+    return arguments.length ? (tickSizeInner = +_, axis) : tickSizeInner;+  };++  axis.tickSizeOuter = function(_) {+    return arguments.length ? (tickSizeOuter = +_, axis) : tickSizeOuter;+  };++  axis.tickPadding = function(_) {+    return arguments.length ? (tickPadding = +_, axis) : tickPadding;+  };++  return axis;+}++function axisTop(scale) {+  return axis(top, scale);+}++function axisRight(scale) {+  return axis(right, scale);+}++function axisBottom(scale) {+  return axis(bottom, scale);+}++function axisLeft(scale) {+  return axis(left, scale);+}++function defaultSeparation(a, b) {+  return a.parent === b.parent ? 1 : 2;+}++function meanX(children) {+  return children.reduce(meanXReduce, 0) / children.length;+}++function meanXReduce(x, c) {+  return x + c.x;+}++function maxY(children) {+  return 1 + children.reduce(maxYReduce, 0);+}++function maxYReduce(y, c) {+  return Math.max(y, c.y);+}++function leafLeft(node) {+  var children;+  while (children = node.children) node = children[0];+  return node;+}++function leafRight(node) {+  var children;+  while (children = node.children) node = children[children.length - 1];+  return node;+}++var cluster = function() {+  var separation = defaultSeparation,+      dx = 1,+      dy = 1,+      nodeSize = false;++  function cluster(root) {+    var previousNode,+        x = 0;++    // First walk, computing the initial x & y values.+    root.eachAfter(function(node) {+      var children = node.children;+      if (children) {+        node.x = meanX(children);+        node.y = maxY(children);+      } else {+        node.x = previousNode ? x += separation(node, previousNode) : 0;+        node.y = 0;+        previousNode = node;+      }+    });++    var left = leafLeft(root),+        right = leafRight(root),+        x0 = left.x - separation(left, right) / 2,+        x1 = right.x + separation(right, left) / 2;++    // Second walk, normalizing x & y to the desired size.+    return root.eachAfter(nodeSize ? function(node) {+      node.x = (node.x - root.x) * dx;+      node.y = (root.y - node.y) * dy;+    } : function(node) {+      node.x = (node.x - x0) / (x1 - x0) * dx;+      node.y = (1 - (root.y ? node.y / root.y : 1)) * dy;+    });+  }++  cluster.separation = function(x) {+    return arguments.length ? (separation = x, cluster) : separation;+  };++  cluster.size = function(x) {+    return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? null : [dx, dy]);+  };++  cluster.nodeSize = function(x) {+    return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? [dx, dy] : null);+  };++  return cluster;+};++var node_each = function(callback) {+  var node = this, current, next = [node], children, i, n;+  do {+    current = next.reverse(), next = [];+    while (node = current.pop()) {+      callback(node), children = node.children;+      if (children) for (i = 0, n = children.length; i < n; ++i) {+        next.push(children[i]);+      }+    }+  } while (next.length);+  return this;+};++var node_eachBefore = function(callback) {+  var node = this, nodes = [node], children, i;+  while (node = nodes.pop()) {+    callback(node), children = node.children;+    if (children) for (i = children.length - 1; i >= 0; --i) {+      nodes.push(children[i]);+    }+  }+  return this;+};++var node_eachAfter = function(callback) {+  var node = this, nodes = [node], next = [], children, i, n;+  while (node = nodes.pop()) {+    next.push(node), children = node.children;+    if (children) for (i = 0, n = children.length; i < n; ++i) {+      nodes.push(children[i]);+    }+  }+  while (node = next.pop()) {+    callback(node);+  }+  return this;+};++var node_sum = function(value) {+  return this.eachAfter(function(node) {+    var sum = +value(node.data) || 0,+        children = node.children,+        i = children && children.length;+    while (--i >= 0) sum += children[i].value;+    node.value = sum;+  });+};++var node_sort = function(compare) {+  return this.eachBefore(function(node) {+    if (node.children) {+      node.children.sort(compare);+    }+  });+};++var node_path = function(end) {+  var start = this,+      ancestor = leastCommonAncestor(start, end),+      nodes = [start];+  while (start !== ancestor) {+    start = start.parent;+    nodes.push(start);+  }+  var k = nodes.length;+  while (end !== ancestor) {+    nodes.splice(k, 0, end);+    end = end.parent;+  }+  return nodes;+};++function leastCommonAncestor(a, b) {+  if (a === b) return a;+  var aNodes = a.ancestors(),+      bNodes = b.ancestors(),+      c = null;+  a = aNodes.pop();+  b = bNodes.pop();+  while (a === b) {+    c = a;+    a = aNodes.pop();+    b = bNodes.pop();+  }+  return c;+}++var node_ancestors = function() {+  var node = this, nodes = [node];+  while (node = node.parent) {+    nodes.push(node);+  }+  return nodes;+};++var node_descendants = function() {+  var nodes = [];+  this.each(function(node) {+    nodes.push(node);+  });+  return nodes;+};++var node_leaves = function() {+  var leaves = [];+  this.eachBefore(function(node) {+    if (!node.children) {+      leaves.push(node);+    }+  });+  return leaves;+};++var node_links = function() {+  var root = this, links = [];+  root.each(function(node) {+    if (node !== root) { // Don’t include the root’s parent, if any.+      links.push({source: node.parent, target: node});+    }+  });+  return links;+};++function hierarchy(data, children) {+  var root = new Node(data),+      valued = +data.value && (root.value = data.value),+      node,+      nodes = [root],+      child,+      childs,+      i,+      n;++  if (children == null) children = defaultChildren;++  while (node = nodes.pop()) {+    if (valued) node.value = +node.data.value;+    if ((childs = children(node.data)) && (n = childs.length)) {+      node.children = new Array(n);+      for (i = n - 1; i >= 0; --i) {+        nodes.push(child = node.children[i] = new Node(childs[i]));+        child.parent = node;+        child.depth = node.depth + 1;+      }+    }+  }++  return root.eachBefore(computeHeight);+}++function node_copy() {+  return hierarchy(this).eachBefore(copyData);+}++function defaultChildren(d) {+  return d.children;+}++function copyData(node) {+  node.data = node.data.data;+}++function computeHeight(node) {+  var height = 0;+  do node.height = height;+  while ((node = node.parent) && (node.height < ++height));+}++function Node(data) {+  this.data = data;+  this.depth =+  this.height = 0;+  this.parent = null;+}++Node.prototype = hierarchy.prototype = {+  constructor: Node,+  each: node_each,+  eachAfter: node_eachAfter,+  eachBefore: node_eachBefore,+  sum: node_sum,+  sort: node_sort,+  path: node_path,+  ancestors: node_ancestors,+  descendants: node_descendants,+  leaves: node_leaves,+  links: node_links,+  copy: node_copy+};++function Node$2(value) {+  this._ = value;+  this.next = null;+}++var shuffle$1 = function(array) {+  var i,+      n = (array = array.slice()).length,+      head = null,+      node = head;++  while (n) {+    var next = new Node$2(array[n - 1]);+    if (node) node = node.next = next;+    else node = head = next;+    array[i] = array[--n];+  }++  return {+    head: head,+    tail: node+  };+};++var enclose = function(circles) {+  return encloseN(shuffle$1(circles), []);+};++function encloses(a, b) {+  var dx = b.x - a.x,+      dy = b.y - a.y,+      dr = a.r - b.r;+  return dr * dr + 1e-6 > dx * dx + dy * dy;+}++// Returns the smallest circle that contains circles L and intersects circles B.+function encloseN(L, B) {+  var circle,+      l0 = null,+      l1 = L.head,+      l2,+      p1;++  switch (B.length) {+    case 1: circle = enclose1(B[0]); break;+    case 2: circle = enclose2(B[0], B[1]); break;+    case 3: circle = enclose3(B[0], B[1], B[2]); break;+  }++  while (l1) {+    p1 = l1._, l2 = l1.next;+    if (!circle || !encloses(circle, p1)) {++      // Temporarily truncate L before l1.+      if (l0) L.tail = l0, l0.next = null;+      else L.head = L.tail = null;++      B.push(p1);+      circle = encloseN(L, B); // Note: reorders L!+      B.pop();++      // Move l1 to the front of L and reconnect the truncated list L.+      if (L.head) l1.next = L.head, L.head = l1;+      else l1.next = null, L.head = L.tail = l1;+      l0 = L.tail, l0.next = l2;++    } else {+      l0 = l1;+    }+    l1 = l2;+  }++  L.tail = l0;+  return circle;+}++function enclose1(a) {+  return {+    x: a.x,+    y: a.y,+    r: a.r+  };+}++function enclose2(a, b) {+  var x1 = a.x, y1 = a.y, r1 = a.r,+      x2 = b.x, y2 = b.y, r2 = b.r,+      x21 = x2 - x1, y21 = y2 - y1, r21 = r2 - r1,+      l = Math.sqrt(x21 * x21 + y21 * y21);+  return {+    x: (x1 + x2 + x21 / l * r21) / 2,+    y: (y1 + y2 + y21 / l * r21) / 2,+    r: (l + r1 + r2) / 2+  };+}++function enclose3(a, b, c) {+  var x1 = a.x, y1 = a.y, r1 = a.r,+      x2 = b.x, y2 = b.y, r2 = b.r,+      x3 = c.x, y3 = c.y, r3 = c.r,+      a2 = 2 * (x1 - x2),+      b2 = 2 * (y1 - y2),+      c2 = 2 * (r2 - r1),+      d2 = x1 * x1 + y1 * y1 - r1 * r1 - x2 * x2 - y2 * y2 + r2 * r2,+      a3 = 2 * (x1 - x3),+      b3 = 2 * (y1 - y3),+      c3 = 2 * (r3 - r1),+      d3 = x1 * x1 + y1 * y1 - r1 * r1 - x3 * x3 - y3 * y3 + r3 * r3,+      ab = a3 * b2 - a2 * b3,+      xa = (b2 * d3 - b3 * d2) / ab - x1,+      xb = (b3 * c2 - b2 * c3) / ab,+      ya = (a3 * d2 - a2 * d3) / ab - y1,+      yb = (a2 * c3 - a3 * c2) / ab,+      A = xb * xb + yb * yb - 1,+      B = 2 * (xa * xb + ya * yb + r1),+      C = xa * xa + ya * ya - r1 * r1,+      r = (-B - Math.sqrt(B * B - 4 * A * C)) / (2 * A);+  return {+    x: xa + xb * r + x1,+    y: ya + yb * r + y1,+    r: r+  };+}++function place(a, b, c) {+  var ax = a.x,+      ay = a.y,+      da = b.r + c.r,+      db = a.r + c.r,+      dx = b.x - ax,+      dy = b.y - ay,+      dc = dx * dx + dy * dy;+  if (dc) {+    var x = 0.5 + ((db *= db) - (da *= da)) / (2 * dc),+        y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc);+    c.x = ax + x * dx + y * dy;+    c.y = ay + x * dy - y * dx;+  } else {+    c.x = ax + db;+    c.y = ay;+  }+}++function intersects(a, b) {+  var dx = b.x - a.x,+      dy = b.y - a.y,+      dr = a.r + b.r;+  return dr * dr > dx * dx + dy * dy;+}++function distance2(circle, x, y) {+  var dx = circle.x - x,+      dy = circle.y - y;+  return dx * dx + dy * dy;+}++function Node$1(circle) {+  this._ = circle;+  this.next = null;+  this.previous = null;+}++function packEnclose(circles) {+  if (!(n = circles.length)) return 0;++  var a, b, c, n;++  // Place the first circle.+  a = circles[0], a.x = 0, a.y = 0;+  if (!(n > 1)) return a.r;++  // Place the second circle.+  b = circles[1], a.x = -b.r, b.x = a.r, b.y = 0;+  if (!(n > 2)) return a.r + b.r;++  // Place the third circle.+  place(b, a, c = circles[2]);++  // Initialize the weighted centroid.+  var aa = a.r * a.r,+      ba = b.r * b.r,+      ca = c.r * c.r,+      oa = aa + ba + ca,+      ox = aa * a.x + ba * b.x + ca * c.x,+      oy = aa * a.y + ba * b.y + ca * c.y,+      cx, cy, i, j, k, sj, sk;++  // Initialize the front-chain using the first three circles a, b and c.+  a = new Node$1(a), b = new Node$1(b), c = new Node$1(c);+  a.next = c.previous = b;+  b.next = a.previous = c;+  c.next = b.previous = a;++  // Attempt to place each remaining circle…+  pack: for (i = 3; i < n; ++i) {+    place(a._, b._, c = circles[i]), c = new Node$1(c);++    // If there are only three elements in the front-chain…+    if ((k = a.previous) === (j = b.next)) {+      // If the new circle intersects the third circle,+      // rotate the front chain to try the next position.+      if (intersects(j._, c._)) {+        a = b, b = j, --i;+        continue pack;+      }+    }++    // Find the closest intersecting circle on the front-chain, if any.+    else {+      sj = j._.r, sk = k._.r;+      do {+        if (sj <= sk) {+          if (intersects(j._, c._)) {+            b = j, a.next = b, b.previous = a, --i;+            continue pack;+          }+          j = j.next, sj += j._.r;+        } else {+          if (intersects(k._, c._)) {+            a = k, a.next = b, b.previous = a, --i;+            continue pack;+          }+          k = k.previous, sk += k._.r;+        }+      } while (j !== k.next);+    }++    // Success! Insert the new circle c between a and b.+    c.previous = a, c.next = b, a.next = b.previous = b = c;++    // Update the weighted centroid.+    oa += ca = c._.r * c._.r;+    ox += ca * c._.x;+    oy += ca * c._.y;++    // Compute the new closest circle a to centroid.+    aa = distance2(a._, cx = ox / oa, cy = oy / oa);+    while ((c = c.next) !== b) {+      if ((ca = distance2(c._, cx, cy)) < aa) {+        a = c, aa = ca;+      }+    }+    b = a.next;+  }++  // Compute the enclosing circle of the front chain.+  a = [b._], c = b; while ((c = c.next) !== b) a.push(c._); c = enclose(a);++  // Translate the circles to put the enclosing circle around the origin.+  for (i = 0; i < n; ++i) a = circles[i], a.x -= c.x, a.y -= c.y;++  return c.r;+}++var siblings = function(circles) {+  packEnclose(circles);+  return circles;+};++function optional(f) {+  return f == null ? null : required(f);+}++function required(f) {+  if (typeof f !== "function") throw new Error;+  return f;+}++function constantZero() {+  return 0;+}++var constant$6 = function(x) {+  return function() {+    return x;+  };+};++function defaultRadius(d) {+  return Math.sqrt(d.value);+}++var index = function() {+  var radius = null,+      dx = 1,+      dy = 1,+      padding = constantZero;++  function pack(root) {+    root.x = dx / 2, root.y = dy / 2;+    if (radius) {+      root.eachBefore(radiusLeaf(radius))+          .eachAfter(packChildren(padding, 0.5))+          .eachBefore(translateChild(1));+    } else {+      root.eachBefore(radiusLeaf(defaultRadius))+          .eachAfter(packChildren(constantZero, 1))+          .eachAfter(packChildren(padding, root.r / Math.min(dx, dy)))+          .eachBefore(translateChild(Math.min(dx, dy) / (2 * root.r)));+    }+    return root;+  }++  pack.radius = function(x) {+    return arguments.length ? (radius = optional(x), pack) : radius;+  };++  pack.size = function(x) {+    return arguments.length ? (dx = +x[0], dy = +x[1], pack) : [dx, dy];+  };++  pack.padding = function(x) {+    return arguments.length ? (padding = typeof x === "function" ? x : constant$6(+x), pack) : padding;+  };++  return pack;+};++function radiusLeaf(radius) {+  return function(node) {+    if (!node.children) {+      node.r = Math.max(0, +radius(node) || 0);+    }+  };+}++function packChildren(padding, k) {+  return function(node) {+    if (children = node.children) {+      var children,+          i,+          n = children.length,+          r = padding(node) * k || 0,+          e;++      if (r) for (i = 0; i < n; ++i) children[i].r += r;+      e = packEnclose(children);+      if (r) for (i = 0; i < n; ++i) children[i].r -= r;+      node.r = e + r;+    }+  };+}++function translateChild(k) {+  return function(node) {+    var parent = node.parent;+    node.r *= k;+    if (parent) {+      node.x = parent.x + k * node.x;+      node.y = parent.y + k * node.y;+    }+  };+}++var roundNode = function(node) {+  node.x0 = Math.round(node.x0);+  node.y0 = Math.round(node.y0);+  node.x1 = Math.round(node.x1);+  node.y1 = Math.round(node.y1);+};++var treemapDice = function(parent, x0, y0, x1, y1) {+  var nodes = parent.children,+      node,+      i = -1,+      n = nodes.length,+      k = parent.value && (x1 - x0) / parent.value;++  while (++i < n) {+    node = nodes[i], node.y0 = y0, node.y1 = y1;+    node.x0 = x0, node.x1 = x0 += node.value * k;+  }+};++var partition = function() {+  var dx = 1,+      dy = 1,+      padding = 0,+      round = false;++  function partition(root) {+    var n = root.height + 1;+    root.x0 =+    root.y0 = padding;+    root.x1 = dx;+    root.y1 = dy / n;+    root.eachBefore(positionNode(dy, n));+    if (round) root.eachBefore(roundNode);+    return root;+  }++  function positionNode(dy, n) {+    return function(node) {+      if (node.children) {+        treemapDice(node, node.x0, dy * (node.depth + 1) / n, node.x1, dy * (node.depth + 2) / n);+      }+      var x0 = node.x0,+          y0 = node.y0,+          x1 = node.x1 - padding,+          y1 = node.y1 - padding;+      if (x1 < x0) x0 = x1 = (x0 + x1) / 2;+      if (y1 < y0) y0 = y1 = (y0 + y1) / 2;+      node.x0 = x0;+      node.y0 = y0;+      node.x1 = x1;+      node.y1 = y1;+    };+  }++  partition.round = function(x) {+    return arguments.length ? (round = !!x, partition) : round;+  };++  partition.size = function(x) {+    return arguments.length ? (dx = +x[0], dy = +x[1], partition) : [dx, dy];+  };++  partition.padding = function(x) {+    return arguments.length ? (padding = +x, partition) : padding;+  };++  return partition;+};++var keyPrefix$1 = "$";+var preroot = {depth: -1};+var ambiguous = {};++function defaultId(d) {+  return d.id;+}++function defaultParentId(d) {+  return d.parentId;+}++var stratify = function() {+  var id = defaultId,+      parentId = defaultParentId;++  function stratify(data) {+    var d,+        i,+        n = data.length,+        root,+        parent,+        node,+        nodes = new Array(n),+        nodeId,+        nodeKey,+        nodeByKey = {};++    for (i = 0; i < n; ++i) {+      d = data[i], node = nodes[i] = new Node(d);+      if ((nodeId = id(d, i, data)) != null && (nodeId += "")) {+        nodeKey = keyPrefix$1 + (node.id = nodeId);+        nodeByKey[nodeKey] = nodeKey in nodeByKey ? ambiguous : node;+      }+    }++    for (i = 0; i < n; ++i) {+      node = nodes[i], nodeId = parentId(data[i], i, data);+      if (nodeId == null || !(nodeId += "")) {+        if (root) throw new Error("multiple roots");+        root = node;+      } else {+        parent = nodeByKey[keyPrefix$1 + nodeId];+        if (!parent) throw new Error("missing: " + nodeId);+        if (parent === ambiguous) throw new Error("ambiguous: " + nodeId);+        if (parent.children) parent.children.push(node);+        else parent.children = [node];+        node.parent = parent;+      }+    }++    if (!root) throw new Error("no root");+    root.parent = preroot;+    root.eachBefore(function(node) { node.depth = node.parent.depth + 1; --n; }).eachBefore(computeHeight);+    root.parent = null;+    if (n > 0) throw new Error("cycle");++    return root;+  }++  stratify.id = function(x) {+    return arguments.length ? (id = required(x), stratify) : id;+  };++  stratify.parentId = function(x) {+    return arguments.length ? (parentId = required(x), stratify) : parentId;+  };++  return stratify;+};++function defaultSeparation$1(a, b) {+  return a.parent === b.parent ? 1 : 2;+}++// function radialSeparation(a, b) {+//   return (a.parent === b.parent ? 1 : 2) / a.depth;+// }++// This function is used to traverse the left contour of a subtree (or+// subforest). It returns the successor of v on this contour. This successor is+// either given by the leftmost child of v or by the thread of v. The function+// returns null if and only if v is on the highest level of its subtree.+function nextLeft(v) {+  var children = v.children;+  return children ? children[0] : v.t;+}++// This function works analogously to nextLeft.+function nextRight(v) {+  var children = v.children;+  return children ? children[children.length - 1] : v.t;+}++// Shifts the current subtree rooted at w+. This is done by increasing+// prelim(w+) and mod(w+) by shift.+function moveSubtree(wm, wp, shift) {+  var change = shift / (wp.i - wm.i);+  wp.c -= change;+  wp.s += shift;+  wm.c += change;+  wp.z += shift;+  wp.m += shift;+}++// All other shifts, applied to the smaller subtrees between w- and w+, are+// performed by this function. To prepare the shifts, we have to adjust+// change(w+), shift(w+), and change(w-).+function executeShifts(v) {+  var shift = 0,+      change = 0,+      children = v.children,+      i = children.length,+      w;+  while (--i >= 0) {+    w = children[i];+    w.z += shift;+    w.m += shift;+    shift += w.s + (change += w.c);+  }+}++// If vi-’s ancestor is a sibling of v, returns vi-’s ancestor. Otherwise,+// returns the specified (default) ancestor.+function nextAncestor(vim, v, ancestor) {+  return vim.a.parent === v.parent ? vim.a : ancestor;+}++function TreeNode(node, i) {+  this._ = node;+  this.parent = null;+  this.children = null;+  this.A = null; // default ancestor+  this.a = this; // ancestor+  this.z = 0; // prelim+  this.m = 0; // mod+  this.c = 0; // change+  this.s = 0; // shift+  this.t = null; // thread+  this.i = i; // number+}++TreeNode.prototype = Object.create(Node.prototype);++function treeRoot(root) {+  var tree = new TreeNode(root, 0),+      node,+      nodes = [tree],+      child,+      children,+      i,+      n;++  while (node = nodes.pop()) {+    if (children = node._.children) {+      node.children = new Array(n = children.length);+      for (i = n - 1; i >= 0; --i) {+        nodes.push(child = node.children[i] = new TreeNode(children[i], i));+        child.parent = node;+      }+    }+  }++  (tree.parent = new TreeNode(null, 0)).children = [tree];+  return tree;+}++// Node-link tree diagram using the Reingold-Tilford "tidy" algorithm+var tree = function() {+  var separation = defaultSeparation$1,+      dx = 1,+      dy = 1,+      nodeSize = null;++  function tree(root) {+    var t = treeRoot(root);++    // Compute the layout using Buchheim et al.’s algorithm.+    t.eachAfter(firstWalk), t.parent.m = -t.z;+    t.eachBefore(secondWalk);++    // If a fixed node size is specified, scale x and y.+    if (nodeSize) root.eachBefore(sizeNode);++    // If a fixed tree size is specified, scale x and y based on the extent.+    // Compute the left-most, right-most, and depth-most nodes for extents.+    else {+      var left = root,+          right = root,+          bottom = root;+      root.eachBefore(function(node) {+        if (node.x < left.x) left = node;+        if (node.x > right.x) right = node;+        if (node.depth > bottom.depth) bottom = node;+      });+      var s = left === right ? 1 : separation(left, right) / 2,+          tx = s - left.x,+          kx = dx / (right.x + s + tx),+          ky = dy / (bottom.depth || 1);+      root.eachBefore(function(node) {+        node.x = (node.x + tx) * kx;+        node.y = node.depth * ky;+      });+    }++    return root;+  }++  // Computes a preliminary x-coordinate for v. Before that, FIRST WALK is+  // applied recursively to the children of v, as well as the function+  // APPORTION. After spacing out the children by calling EXECUTE SHIFTS, the+  // node v is placed to the midpoint of its outermost children.+  function firstWalk(v) {+    var children = v.children,+        siblings = v.parent.children,+        w = v.i ? siblings[v.i - 1] : null;+    if (children) {+      executeShifts(v);+      var midpoint = (children[0].z + children[children.length - 1].z) / 2;+      if (w) {+        v.z = w.z + separation(v._, w._);+        v.m = v.z - midpoint;+      } else {+        v.z = midpoint;+      }+    } else if (w) {+      v.z = w.z + separation(v._, w._);+    }+    v.parent.A = apportion(v, w, v.parent.A || siblings[0]);+  }++  // Computes all real x-coordinates by summing up the modifiers recursively.+  function secondWalk(v) {+    v._.x = v.z + v.parent.m;+    v.m += v.parent.m;+  }++  // The core of the algorithm. Here, a new subtree is combined with the+  // previous subtrees. Threads are used to traverse the inside and outside+  // contours of the left and right subtree up to the highest common level. The+  // vertices used for the traversals are vi+, vi-, vo-, and vo+, where the+  // superscript o means outside and i means inside, the subscript - means left+  // subtree and + means right subtree. For summing up the modifiers along the+  // contour, we use respective variables si+, si-, so-, and so+. Whenever two+  // nodes of the inside contours conflict, we compute the left one of the+  // greatest uncommon ancestors using the function ANCESTOR and call MOVE+  // SUBTREE to shift the subtree and prepare the shifts of smaller subtrees.+  // Finally, we add a new thread (if necessary).+  function apportion(v, w, ancestor) {+    if (w) {+      var vip = v,+          vop = v,+          vim = w,+          vom = vip.parent.children[0],+          sip = vip.m,+          sop = vop.m,+          sim = vim.m,+          som = vom.m,+          shift;+      while (vim = nextRight(vim), vip = nextLeft(vip), vim && vip) {+        vom = nextLeft(vom);+        vop = nextRight(vop);+        vop.a = v;+        shift = vim.z + sim - vip.z - sip + separation(vim._, vip._);+        if (shift > 0) {+          moveSubtree(nextAncestor(vim, v, ancestor), v, shift);+          sip += shift;+          sop += shift;+        }+        sim += vim.m;+        sip += vip.m;+        som += vom.m;+        sop += vop.m;+      }+      if (vim && !nextRight(vop)) {+        vop.t = vim;+        vop.m += sim - sop;+      }+      if (vip && !nextLeft(vom)) {+        vom.t = vip;+        vom.m += sip - som;+        ancestor = v;+      }+    }+    return ancestor;+  }++  function sizeNode(node) {+    node.x *= dx;+    node.y = node.depth * dy;+  }++  tree.separation = function(x) {+    return arguments.length ? (separation = x, tree) : separation;+  };++  tree.size = function(x) {+    return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], tree) : (nodeSize ? null : [dx, dy]);+  };++  tree.nodeSize = function(x) {+    return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], tree) : (nodeSize ? [dx, dy] : null);+  };++  return tree;+};++var treemapSlice = function(parent, x0, y0, x1, y1) {+  var nodes = parent.children,+      node,+      i = -1,+      n = nodes.length,+      k = parent.value && (y1 - y0) / parent.value;++  while (++i < n) {+    node = nodes[i], node.x0 = x0, node.x1 = x1;+    node.y0 = y0, node.y1 = y0 += node.value * k;+  }+};++var phi = (1 + Math.sqrt(5)) / 2;++function squarifyRatio(ratio, parent, x0, y0, x1, y1) {+  var rows = [],+      nodes = parent.children,+      row,+      nodeValue,+      i0 = 0,+      i1 = 0,+      n = nodes.length,+      dx, dy,+      value = parent.value,+      sumValue,+      minValue,+      maxValue,+      newRatio,+      minRatio,+      alpha,+      beta;++  while (i0 < n) {+    dx = x1 - x0, dy = y1 - y0;++    // Find the next non-empty node.+    do sumValue = nodes[i1++].value; while (!sumValue && i1 < n);+    minValue = maxValue = sumValue;+    alpha = Math.max(dy / dx, dx / dy) / (value * ratio);+    beta = sumValue * sumValue * alpha;+    minRatio = Math.max(maxValue / beta, beta / minValue);++    // Keep adding nodes while the aspect ratio maintains or improves.+    for (; i1 < n; ++i1) {+      sumValue += nodeValue = nodes[i1].value;+      if (nodeValue < minValue) minValue = nodeValue;+      if (nodeValue > maxValue) maxValue = nodeValue;+      beta = sumValue * sumValue * alpha;+      newRatio = Math.max(maxValue / beta, beta / minValue);+      if (newRatio > minRatio) { sumValue -= nodeValue; break; }+      minRatio = newRatio;+    }++    // Position and record the row orientation.+    rows.push(row = {value: sumValue, dice: dx < dy, children: nodes.slice(i0, i1)});+    if (row.dice) treemapDice(row, x0, y0, x1, value ? y0 += dy * sumValue / value : y1);+    else treemapSlice(row, x0, y0, value ? x0 += dx * sumValue / value : x1, y1);+    value -= sumValue, i0 = i1;+  }++  return rows;+}++var squarify = (function custom(ratio) {++  function squarify(parent, x0, y0, x1, y1) {+    squarifyRatio(ratio, parent, x0, y0, x1, y1);+  }++  squarify.ratio = function(x) {+    return custom((x = +x) > 1 ? x : 1);+  };++  return squarify;+})(phi);++var index$1 = function() {+  var tile = squarify,+      round = false,+      dx = 1,+      dy = 1,+      paddingStack = [0],+      paddingInner = constantZero,+      paddingTop = constantZero,+      paddingRight = constantZero,+      paddingBottom = constantZero,+      paddingLeft = constantZero;++  function treemap(root) {+    root.x0 =+    root.y0 = 0;+    root.x1 = dx;+    root.y1 = dy;+    root.eachBefore(positionNode);+    paddingStack = [0];+    if (round) root.eachBefore(roundNode);+    return root;+  }++  function positionNode(node) {+    var p = paddingStack[node.depth],+        x0 = node.x0 + p,+        y0 = node.y0 + p,+        x1 = node.x1 - p,+        y1 = node.y1 - p;+    if (x1 < x0) x0 = x1 = (x0 + x1) / 2;+    if (y1 < y0) y0 = y1 = (y0 + y1) / 2;+    node.x0 = x0;+    node.y0 = y0;+    node.x1 = x1;+    node.y1 = y1;+    if (node.children) {+      p = paddingStack[node.depth + 1] = paddingInner(node) / 2;+      x0 += paddingLeft(node) - p;+      y0 += paddingTop(node) - p;+      x1 -= paddingRight(node) - p;+      y1 -= paddingBottom(node) - p;+      if (x1 < x0) x0 = x1 = (x0 + x1) / 2;+      if (y1 < y0) y0 = y1 = (y0 + y1) / 2;+      tile(node, x0, y0, x1, y1);+    }+  }++  treemap.round = function(x) {+    return arguments.length ? (round = !!x, treemap) : round;+  };++  treemap.size = function(x) {+    return arguments.length ? (dx = +x[0], dy = +x[1], treemap) : [dx, dy];+  };++  treemap.tile = function(x) {+    return arguments.length ? (tile = required(x), treemap) : tile;+  };++  treemap.padding = function(x) {+    return arguments.length ? treemap.paddingInner(x).paddingOuter(x) : treemap.paddingInner();+  };++  treemap.paddingInner = function(x) {+    return arguments.length ? (paddingInner = typeof x === "function" ? x : constant$6(+x), treemap) : paddingInner;+  };++  treemap.paddingOuter = function(x) {+    return arguments.length ? treemap.paddingTop(x).paddingRight(x).paddingBottom(x).paddingLeft(x) : treemap.paddingTop();+  };++  treemap.paddingTop = function(x) {+    return arguments.length ? (paddingTop = typeof x === "function" ? x : constant$6(+x), treemap) : paddingTop;+  };++  treemap.paddingRight = function(x) {+    return arguments.length ? (paddingRight = typeof x === "function" ? x : constant$6(+x), treemap) : paddingRight;+  };++  treemap.paddingBottom = function(x) {+    return arguments.length ? (paddingBottom = typeof x === "function" ? x : constant$6(+x), treemap) : paddingBottom;+  };++  treemap.paddingLeft = function(x) {+    return arguments.length ? (paddingLeft = typeof x === "function" ? x : constant$6(+x), treemap) : paddingLeft;+  };++  return treemap;+};++var binary = function(parent, x0, y0, x1, y1) {+  var nodes = parent.children,+      i, n = nodes.length,+      sum, sums = new Array(n + 1);++  for (sums[0] = sum = i = 0; i < n; ++i) {+    sums[i + 1] = sum += nodes[i].value;+  }++  partition(0, n, parent.value, x0, y0, x1, y1);++  function partition(i, j, value, x0, y0, x1, y1) {+    if (i >= j - 1) {+      var node = nodes[i];+      node.x0 = x0, node.y0 = y0;+      node.x1 = x1, node.y1 = y1;+      return;+    }++    var valueOffset = sums[i],+        valueTarget = (value / 2) + valueOffset,+        k = i + 1,+        hi = j - 1;++    while (k < hi) {+      var mid = k + hi >>> 1;+      if (sums[mid] < valueTarget) k = mid + 1;+      else hi = mid;+    }++    var valueLeft = sums[k] - valueOffset,+        valueRight = value - valueLeft;++    if ((y1 - y0) > (x1 - x0)) {+      var yk = (y0 * valueRight + y1 * valueLeft) / value;+      partition(i, k, valueLeft, x0, y0, x1, yk);+      partition(k, j, valueRight, x0, yk, x1, y1);+    } else {+      var xk = (x0 * valueRight + x1 * valueLeft) / value;+      partition(i, k, valueLeft, x0, y0, xk, y1);+      partition(k, j, valueRight, xk, y0, x1, y1);+    }+  }+};++var sliceDice = function(parent, x0, y0, x1, y1) {+  (parent.depth & 1 ? treemapSlice : treemapDice)(parent, x0, y0, x1, y1);+};++var resquarify = (function custom(ratio) {++  function resquarify(parent, x0, y0, x1, y1) {+    if ((rows = parent._squarify) && (rows.ratio === ratio)) {+      var rows,+          row,+          nodes,+          i,+          j = -1,+          n,+          m = rows.length,+          value = parent.value;++      while (++j < m) {+        row = rows[j], nodes = row.children;+        for (i = row.value = 0, n = nodes.length; i < n; ++i) row.value += nodes[i].value;+        if (row.dice) treemapDice(row, x0, y0, x1, y0 += (y1 - y0) * row.value / value);+        else treemapSlice(row, x0, y0, x0 += (x1 - x0) * row.value / value, y1);+        value -= row.value;+      }+    } else {+      parent._squarify = rows = squarifyRatio(ratio, parent, x0, y0, x1, y1);+      rows.ratio = ratio;+    }+  }++  resquarify.ratio = function(x) {+    return custom((x = +x) > 1 ? x : 1);+  };++  return resquarify;+})(phi);++var center$1 = function(x, y) {+  var nodes;++  if (x == null) x = 0;+  if (y == null) y = 0;++  function force() {+    var i,+        n = nodes.length,+        node,+        sx = 0,+        sy = 0;++    for (i = 0; i < n; ++i) {+      node = nodes[i], sx += node.x, sy += node.y;+    }++    for (sx = sx / n - x, sy = sy / n - y, i = 0; i < n; ++i) {+      node = nodes[i], node.x -= sx, node.y -= sy;+    }+  }++  force.initialize = function(_) {+    nodes = _;+  };++  force.x = function(_) {+    return arguments.length ? (x = +_, force) : x;+  };++  force.y = function(_) {+    return arguments.length ? (y = +_, force) : y;+  };++  return force;+};++var constant$7 = function(x) {+  return function() {+    return x;+  };+};++var jiggle = function() {+  return (Math.random() - 0.5) * 1e-6;+};++function x$1(d) {+  return d.x + d.vx;+}++function y$1(d) {+  return d.y + d.vy;+}++var collide = function(radius) {+  var nodes,+      radii,+      strength = 1,+      iterations = 1;++  if (typeof radius !== "function") radius = constant$7(radius == null ? 1 : +radius);++  function force() {+    var i, n = nodes.length,+        tree,+        node,+        xi,+        yi,+        ri,+        ri2;++    for (var k = 0; k < iterations; ++k) {+      tree = quadtree(nodes, x$1, y$1).visitAfter(prepare);+      for (i = 0; i < n; ++i) {+        node = nodes[i];+        ri = radii[node.index], ri2 = ri * ri;+        xi = node.x + node.vx;+        yi = node.y + node.vy;+        tree.visit(apply);+      }+    }++    function apply(quad, x0, y0, x1, y1) {+      var data = quad.data, rj = quad.r, r = ri + rj;+      if (data) {+        if (data.index > node.index) {+          var x = xi - data.x - data.vx,+              y = yi - data.y - data.vy,+              l = x * x + y * y;+          if (l < r * r) {+            if (x === 0) x = jiggle(), l += x * x;+            if (y === 0) y = jiggle(), l += y * y;+            l = (r - (l = Math.sqrt(l))) / l * strength;+            node.vx += (x *= l) * (r = (rj *= rj) / (ri2 + rj));+            node.vy += (y *= l) * r;+            data.vx -= x * (r = 1 - r);+            data.vy -= y * r;+          }+        }+        return;+      }+      return x0 > xi + r || x1 < xi - r || y0 > yi + r || y1 < yi - r;+    }+  }++  function prepare(quad) {+    if (quad.data) return quad.r = radii[quad.data.index];+    for (var i = quad.r = 0; i < 4; ++i) {+      if (quad[i] && quad[i].r > quad.r) {+        quad.r = quad[i].r;+      }+    }+  }++  function initialize() {+    if (!nodes) return;+    var i, n = nodes.length, node;+    radii = new Array(n);+    for (i = 0; i < n; ++i) node = nodes[i], radii[node.index] = +radius(node, i, nodes);+  }++  force.initialize = function(_) {+    nodes = _;+    initialize();+  };++  force.iterations = function(_) {+    return arguments.length ? (iterations = +_, force) : iterations;+  };++  force.strength = function(_) {+    return arguments.length ? (strength = +_, force) : strength;+  };++  force.radius = function(_) {+    return arguments.length ? (radius = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : radius;+  };++  return force;+};++function index$2(d) {+  return d.index;+}++function find(nodeById, nodeId) {+  var node = nodeById.get(nodeId);+  if (!node) throw new Error("missing: " + nodeId);+  return node;+}++var link = function(links) {+  var id = index$2,+      strength = defaultStrength,+      strengths,+      distance = constant$7(30),+      distances,+      nodes,+      count,+      bias,+      iterations = 1;++  if (links == null) links = [];++  function defaultStrength(link) {+    return 1 / Math.min(count[link.source.index], count[link.target.index]);+  }++  function force(alpha) {+    for (var k = 0, n = links.length; k < iterations; ++k) {+      for (var i = 0, link, source, target, x, y, l, b; i < n; ++i) {+        link = links[i], source = link.source, target = link.target;+        x = target.x + target.vx - source.x - source.vx || jiggle();+        y = target.y + target.vy - source.y - source.vy || jiggle();+        l = Math.sqrt(x * x + y * y);+        l = (l - distances[i]) / l * alpha * strengths[i];+        x *= l, y *= l;+        target.vx -= x * (b = bias[i]);+        target.vy -= y * b;+        source.vx += x * (b = 1 - b);+        source.vy += y * b;+      }+    }+  }++  function initialize() {+    if (!nodes) return;++    var i,+        n = nodes.length,+        m = links.length,+        nodeById = map$1(nodes, id),+        link;++    for (i = 0, count = new Array(n); i < m; ++i) {+      link = links[i], link.index = i;+      if (typeof link.source !== "object") link.source = find(nodeById, link.source);+      if (typeof link.target !== "object") link.target = find(nodeById, link.target);+      count[link.source.index] = (count[link.source.index] || 0) + 1;+      count[link.target.index] = (count[link.target.index] || 0) + 1;+    }++    for (i = 0, bias = new Array(m); i < m; ++i) {+      link = links[i], bias[i] = count[link.source.index] / (count[link.source.index] + count[link.target.index]);+    }++    strengths = new Array(m), initializeStrength();+    distances = new Array(m), initializeDistance();+  }++  function initializeStrength() {+    if (!nodes) return;++    for (var i = 0, n = links.length; i < n; ++i) {+      strengths[i] = +strength(links[i], i, links);+    }+  }++  function initializeDistance() {+    if (!nodes) return;++    for (var i = 0, n = links.length; i < n; ++i) {+      distances[i] = +distance(links[i], i, links);+    }+  }++  force.initialize = function(_) {+    nodes = _;+    initialize();+  };++  force.links = function(_) {+    return arguments.length ? (links = _, initialize(), force) : links;+  };++  force.id = function(_) {+    return arguments.length ? (id = _, force) : id;+  };++  force.iterations = function(_) {+    return arguments.length ? (iterations = +_, force) : iterations;+  };++  force.strength = function(_) {+    return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initializeStrength(), force) : strength;+  };++  force.distance = function(_) {+    return arguments.length ? (distance = typeof _ === "function" ? _ : constant$7(+_), initializeDistance(), force) : distance;+  };++  return force;+};++function x$2(d) {+  return d.x;+}++function y$2(d) {+  return d.y;+}++var initialRadius = 10;+var initialAngle = Math.PI * (3 - Math.sqrt(5));++var simulation = function(nodes) {+  var simulation,+      alpha = 1,+      alphaMin = 0.001,+      alphaDecay = 1 - Math.pow(alphaMin, 1 / 300),+      alphaTarget = 0,+      velocityDecay = 0.6,+      forces = map$1(),+      stepper = timer(step),+      event = dispatch("tick", "end");++  if (nodes == null) nodes = [];++  function step() {+    tick();+    event.call("tick", simulation);+    if (alpha < alphaMin) {+      stepper.stop();+      event.call("end", simulation);+    }+  }++  function tick() {+    var i, n = nodes.length, node;++    alpha += (alphaTarget - alpha) * alphaDecay;++    forces.each(function(force) {+      force(alpha);+    });++    for (i = 0; i < n; ++i) {+      node = nodes[i];+      if (node.fx == null) node.x += node.vx *= velocityDecay;+      else node.x = node.fx, node.vx = 0;+      if (node.fy == null) node.y += node.vy *= velocityDecay;+      else node.y = node.fy, node.vy = 0;+    }+  }++  function initializeNodes() {+    for (var i = 0, n = nodes.length, node; i < n; ++i) {+      node = nodes[i], node.index = i;+      if (isNaN(node.x) || isNaN(node.y)) {+        var radius = initialRadius * Math.sqrt(i), angle = i * initialAngle;+        node.x = radius * Math.cos(angle);+        node.y = radius * Math.sin(angle);+      }+      if (isNaN(node.vx) || isNaN(node.vy)) {+        node.vx = node.vy = 0;+      }+    }+  }++  function initializeForce(force) {+    if (force.initialize) force.initialize(nodes);+    return force;+  }++  initializeNodes();++  return simulation = {+    tick: tick,++    restart: function() {+      return stepper.restart(step), simulation;+    },++    stop: function() {+      return stepper.stop(), simulation;+    },++    nodes: function(_) {+      return arguments.length ? (nodes = _, initializeNodes(), forces.each(initializeForce), simulation) : nodes;+    },++    alpha: function(_) {+      return arguments.length ? (alpha = +_, simulation) : alpha;+    },++    alphaMin: function(_) {+      return arguments.length ? (alphaMin = +_, simulation) : alphaMin;+    },++    alphaDecay: function(_) {+      return arguments.length ? (alphaDecay = +_, simulation) : +alphaDecay;+    },++    alphaTarget: function(_) {+      return arguments.length ? (alphaTarget = +_, simulation) : alphaTarget;+    },++    velocityDecay: function(_) {+      return arguments.length ? (velocityDecay = 1 - _, simulation) : 1 - velocityDecay;+    },++    force: function(name, _) {+      return arguments.length > 1 ? ((_ == null ? forces.remove(name) : forces.set(name, initializeForce(_))), simulation) : forces.get(name);+    },++    find: function(x, y, radius) {+      var i = 0,+          n = nodes.length,+          dx,+          dy,+          d2,+          node,+          closest;++      if (radius == null) radius = Infinity;+      else radius *= radius;++      for (i = 0; i < n; ++i) {+        node = nodes[i];+        dx = x - node.x;+        dy = y - node.y;+        d2 = dx * dx + dy * dy;+        if (d2 < radius) closest = node, radius = d2;+      }++      return closest;+    },++    on: function(name, _) {+      return arguments.length > 1 ? (event.on(name, _), simulation) : event.on(name);+    }+  };+};++var manyBody = function() {+  var nodes,+      node,+      alpha,+      strength = constant$7(-30),+      strengths,+      distanceMin2 = 1,+      distanceMax2 = Infinity,+      theta2 = 0.81;++  function force(_) {+    var i, n = nodes.length, tree = quadtree(nodes, x$2, y$2).visitAfter(accumulate);+    for (alpha = _, i = 0; i < n; ++i) node = nodes[i], tree.visit(apply);+  }++  function initialize() {+    if (!nodes) return;+    var i, n = nodes.length, node;+    strengths = new Array(n);+    for (i = 0; i < n; ++i) node = nodes[i], strengths[node.index] = +strength(node, i, nodes);+  }++  function accumulate(quad) {+    var strength = 0, q, c, x$$1, y$$1, i;++    // For internal nodes, accumulate forces from child quadrants.+    if (quad.length) {+      for (x$$1 = y$$1 = i = 0; i < 4; ++i) {+        if ((q = quad[i]) && (c = q.value)) {+          strength += c, x$$1 += c * q.x, y$$1 += c * q.y;+        }+      }+      quad.x = x$$1 / strength;+      quad.y = y$$1 / strength;+    }++    // For leaf nodes, accumulate forces from coincident quadrants.+    else {+      q = quad;+      q.x = q.data.x;+      q.y = q.data.y;+      do strength += strengths[q.data.index];+      while (q = q.next);+    }++    quad.value = strength;+  }++  function apply(quad, x1, _, x2) {+    if (!quad.value) return true;++    var x$$1 = quad.x - node.x,+        y$$1 = quad.y - node.y,+        w = x2 - x1,+        l = x$$1 * x$$1 + y$$1 * y$$1;++    // Apply the Barnes-Hut approximation if possible.+    // Limit forces for very close nodes; randomize direction if coincident.+    if (w * w / theta2 < l) {+      if (l < distanceMax2) {+        if (x$$1 === 0) x$$1 = jiggle(), l += x$$1 * x$$1;+        if (y$$1 === 0) y$$1 = jiggle(), l += y$$1 * y$$1;+        if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l);+        node.vx += x$$1 * quad.value * alpha / l;+        node.vy += y$$1 * quad.value * alpha / l;+      }+      return true;+    }++    // Otherwise, process points directly.+    else if (quad.length || l >= distanceMax2) return;++    // Limit forces for very close nodes; randomize direction if coincident.+    if (quad.data !== node || quad.next) {+      if (x$$1 === 0) x$$1 = jiggle(), l += x$$1 * x$$1;+      if (y$$1 === 0) y$$1 = jiggle(), l += y$$1 * y$$1;+      if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l);+    }++    do if (quad.data !== node) {+      w = strengths[quad.data.index] * alpha / l;+      node.vx += x$$1 * w;+      node.vy += y$$1 * w;+    } while (quad = quad.next);+  }++  force.initialize = function(_) {+    nodes = _;+    initialize();+  };++  force.strength = function(_) {+    return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength;+  };++  force.distanceMin = function(_) {+    return arguments.length ? (distanceMin2 = _ * _, force) : Math.sqrt(distanceMin2);+  };++  force.distanceMax = function(_) {+    return arguments.length ? (distanceMax2 = _ * _, force) : Math.sqrt(distanceMax2);+  };++  force.theta = function(_) {+    return arguments.length ? (theta2 = _ * _, force) : Math.sqrt(theta2);+  };++  return force;+};++var x$3 = function(x) {+  var strength = constant$7(0.1),+      nodes,+      strengths,+      xz;++  if (typeof x !== "function") x = constant$7(x == null ? 0 : +x);++  function force(alpha) {+    for (var i = 0, n = nodes.length, node; i < n; ++i) {+      node = nodes[i], node.vx += (xz[i] - node.x) * strengths[i] * alpha;+    }+  }++  function initialize() {+    if (!nodes) return;+    var i, n = nodes.length;+    strengths = new Array(n);+    xz = new Array(n);+    for (i = 0; i < n; ++i) {+      strengths[i] = isNaN(xz[i] = +x(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes);+    }+  }++  force.initialize = function(_) {+    nodes = _;+    initialize();+  };++  force.strength = function(_) {+    return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength;+  };++  force.x = function(_) {+    return arguments.length ? (x = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : x;+  };++  return force;+};++var y$3 = function(y) {+  var strength = constant$7(0.1),+      nodes,+      strengths,+      yz;++  if (typeof y !== "function") y = constant$7(y == null ? 0 : +y);++  function force(alpha) {+    for (var i = 0, n = nodes.length, node; i < n; ++i) {+      node = nodes[i], node.vy += (yz[i] - node.y) * strengths[i] * alpha;+    }+  }++  function initialize() {+    if (!nodes) return;+    var i, n = nodes.length;+    strengths = new Array(n);+    yz = new Array(n);+    for (i = 0; i < n; ++i) {+      strengths[i] = isNaN(yz[i] = +y(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes);+    }+  }++  force.initialize = function(_) {+    nodes = _;+    initialize();+  };++  force.strength = function(_) {+    return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength;+  };++  force.y = function(_) {+    return arguments.length ? (y = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : y;+  };++  return force;+};++function nopropagation() {+  exports.event.stopImmediatePropagation();+}++var noevent = function() {+  exports.event.preventDefault();+  exports.event.stopImmediatePropagation();+};++var dragDisable = function(view) {+  var root = view.document.documentElement,+      selection$$1 = select(view).on("dragstart.drag", noevent, true);+  if ("onselectstart" in root) {+    selection$$1.on("selectstart.drag", noevent, true);+  } else {+    root.__noselect = root.style.MozUserSelect;+    root.style.MozUserSelect = "none";+  }+};++function yesdrag(view, noclick) {+  var root = view.document.documentElement,+      selection$$1 = select(view).on("dragstart.drag", null);+  if (noclick) {+    selection$$1.on("click.drag", noevent, true);+    setTimeout(function() { selection$$1.on("click.drag", null); }, 0);+  }+  if ("onselectstart" in root) {+    selection$$1.on("selectstart.drag", null);+  } else {+    root.style.MozUserSelect = root.__noselect;+    delete root.__noselect;+  }+}++var constant$8 = function(x) {+  return function() {+    return x;+  };+};++function DragEvent(target, type, subject, id, active, x, y, dx, dy, dispatch) {+  this.target = target;+  this.type = type;+  this.subject = subject;+  this.identifier = id;+  this.active = active;+  this.x = x;+  this.y = y;+  this.dx = dx;+  this.dy = dy;+  this._ = dispatch;+}++DragEvent.prototype.on = function() {+  var value = this._.on.apply(this._, arguments);+  return value === this._ ? this : value;+};++// Ignore right-click, since that should open the context menu.+function defaultFilter() {+  return !exports.event.button;+}++function defaultContainer() {+  return this.parentNode;+}++function defaultSubject(d) {+  return d == null ? {x: exports.event.x, y: exports.event.y} : d;+}++var drag = function() {+  var filter = defaultFilter,+      container = defaultContainer,+      subject = defaultSubject,+      gestures = {},+      listeners = dispatch("start", "drag", "end"),+      active = 0,+      mousemoving,+      touchending;++  function drag(selection$$1) {+    selection$$1+        .on("mousedown.drag", mousedowned)+        .on("touchstart.drag", touchstarted)+        .on("touchmove.drag", touchmoved)+        .on("touchend.drag touchcancel.drag", touchended)+        .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)");+  }++  function mousedowned() {+    if (touchending || !filter.apply(this, arguments)) return;+    var gesture = beforestart("mouse", container.apply(this, arguments), mouse, this, arguments);+    if (!gesture) return;+    select(exports.event.view).on("mousemove.drag", mousemoved, true).on("mouseup.drag", mouseupped, true);+    dragDisable(exports.event.view);+    nopropagation();+    mousemoving = false;+    gesture("start");+  }++  function mousemoved() {+    noevent();+    mousemoving = true;+    gestures.mouse("drag");+  }++  function mouseupped() {+    select(exports.event.view).on("mousemove.drag mouseup.drag", null);+    yesdrag(exports.event.view, mousemoving);+    noevent();+    gestures.mouse("end");+  }++  function touchstarted() {+    if (!filter.apply(this, arguments)) return;+    var touches$$1 = exports.event.changedTouches,+        c = container.apply(this, arguments),+        n = touches$$1.length, i, gesture;++    for (i = 0; i < n; ++i) {+      if (gesture = beforestart(touches$$1[i].identifier, c, touch, this, arguments)) {+        nopropagation();+        gesture("start");+      }+    }+  }++  function touchmoved() {+    var touches$$1 = exports.event.changedTouches,+        n = touches$$1.length, i, gesture;++    for (i = 0; i < n; ++i) {+      if (gesture = gestures[touches$$1[i].identifier]) {+        noevent();+        gesture("drag");+      }+    }+  }++  function touchended() {+    var touches$$1 = exports.event.changedTouches,+        n = touches$$1.length, i, gesture;++    if (touchending) clearTimeout(touchending);+    touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed!+    for (i = 0; i < n; ++i) {+      if (gesture = gestures[touches$$1[i].identifier]) {+        nopropagation();+        gesture("end");+      }+    }+  }++  function beforestart(id, container, point, that, args) {+    var p = point(container, id), s, dx, dy,+        sublisteners = listeners.copy();++    if (!customEvent(new DragEvent(drag, "beforestart", s, id, active, p[0], p[1], 0, 0, sublisteners), function() {+      if ((exports.event.subject = s = subject.apply(that, args)) == null) return false;+      dx = s.x - p[0] || 0;+      dy = s.y - p[1] || 0;+      return true;+    })) return;++    return function gesture(type) {+      var p0 = p, n;+      switch (type) {+        case "start": gestures[id] = gesture, n = active++; break;+        case "end": delete gestures[id], --active; // nobreak+        case "drag": p = point(container, id), n = active; break;+      }+      customEvent(new DragEvent(drag, type, s, id, n, p[0] + dx, p[1] + dy, p[0] - p0[0], p[1] - p0[1], sublisteners), sublisteners.apply, sublisteners, [type, that, args]);+    };+  }++  drag.filter = function(_) {+    return arguments.length ? (filter = typeof _ === "function" ? _ : constant$8(!!_), drag) : filter;+  };++  drag.container = function(_) {+    return arguments.length ? (container = typeof _ === "function" ? _ : constant$8(_), drag) : container;+  };++  drag.subject = function(_) {+    return arguments.length ? (subject = typeof _ === "function" ? _ : constant$8(_), drag) : subject;+  };++  drag.on = function() {+    var value = listeners.on.apply(listeners, arguments);+    return value === listeners ? drag : value;+  };++  return drag;+};++var constant$9 = function(x) {+  return function() {+    return x;+  };+};++function x$4(d) {+  return d[0];+}++function y$4(d) {+  return d[1];+}++function RedBlackTree() {+  this._ = null; // root node+}++function RedBlackNode(node) {+  node.U = // parent node+  node.C = // color - true for red, false for black+  node.L = // left node+  node.R = // right node+  node.P = // previous node+  node.N = null; // next node+}++RedBlackTree.prototype = {+  constructor: RedBlackTree,++  insert: function(after, node) {+    var parent, grandpa, uncle;++    if (after) {+      node.P = after;+      node.N = after.N;+      if (after.N) after.N.P = node;+      after.N = node;+      if (after.R) {+        after = after.R;+        while (after.L) after = after.L;+        after.L = node;+      } else {+        after.R = node;+      }+      parent = after;+    } else if (this._) {+      after = RedBlackFirst(this._);+      node.P = null;+      node.N = after;+      after.P = after.L = node;+      parent = after;+    } else {+      node.P = node.N = null;+      this._ = node;+      parent = null;+    }+    node.L = node.R = null;+    node.U = parent;+    node.C = true;++    after = node;+    while (parent && parent.C) {+      grandpa = parent.U;+      if (parent === grandpa.L) {+        uncle = grandpa.R;+        if (uncle && uncle.C) {+          parent.C = uncle.C = false;+          grandpa.C = true;+          after = grandpa;+        } else {+          if (after === parent.R) {+            RedBlackRotateLeft(this, parent);+            after = parent;+            parent = after.U;+          }+          parent.C = false;+          grandpa.C = true;+          RedBlackRotateRight(this, grandpa);+        }+      } else {+        uncle = grandpa.L;+        if (uncle && uncle.C) {+          parent.C = uncle.C = false;+          grandpa.C = true;+          after = grandpa;+        } else {+          if (after === parent.L) {+            RedBlackRotateRight(this, parent);+            after = parent;+            parent = after.U;+          }+          parent.C = false;+          grandpa.C = true;+          RedBlackRotateLeft(this, grandpa);+        }+      }+      parent = after.U;+    }+    this._.C = false;+  },++  remove: function(node) {+    if (node.N) node.N.P = node.P;+    if (node.P) node.P.N = node.N;+    node.N = node.P = null;++    var parent = node.U,+        sibling,+        left = node.L,+        right = node.R,+        next,+        red;++    if (!left) next = right;+    else if (!right) next = left;+    else next = RedBlackFirst(right);++    if (parent) {+      if (parent.L === node) parent.L = next;+      else parent.R = next;+    } else {+      this._ = next;+    }++    if (left && right) {+      red = next.C;+      next.C = node.C;+      next.L = left;+      left.U = next;+      if (next !== right) {+        parent = next.U;+        next.U = node.U;+        node = next.R;+        parent.L = node;+        next.R = right;+        right.U = next;+      } else {+        next.U = parent;+        parent = next;+        node = next.R;+      }+    } else {+      red = node.C;+      node = next;+    }++    if (node) node.U = parent;+    if (red) return;+    if (node && node.C) { node.C = false; return; }++    do {+      if (node === this._) break;+      if (node === parent.L) {+        sibling = parent.R;+        if (sibling.C) {+          sibling.C = false;+          parent.C = true;+          RedBlackRotateLeft(this, parent);+          sibling = parent.R;+        }+        if ((sibling.L && sibling.L.C)+            || (sibling.R && sibling.R.C)) {+          if (!sibling.R || !sibling.R.C) {+            sibling.L.C = false;+            sibling.C = true;+            RedBlackRotateRight(this, sibling);+            sibling = parent.R;+          }+          sibling.C = parent.C;+          parent.C = sibling.R.C = false;+          RedBlackRotateLeft(this, parent);+          node = this._;+          break;+        }+      } else {+        sibling = parent.L;+        if (sibling.C) {+          sibling.C = false;+          parent.C = true;+          RedBlackRotateRight(this, parent);+          sibling = parent.L;+        }+        if ((sibling.L && sibling.L.C)+          || (sibling.R && sibling.R.C)) {+          if (!sibling.L || !sibling.L.C) {+            sibling.R.C = false;+            sibling.C = true;+            RedBlackRotateLeft(this, sibling);+            sibling = parent.L;+          }+          sibling.C = parent.C;+          parent.C = sibling.L.C = false;+          RedBlackRotateRight(this, parent);+          node = this._;+          break;+        }+      }+      sibling.C = true;+      node = parent;+      parent = parent.U;+    } while (!node.C);++    if (node) node.C = false;+  }+};++function RedBlackRotateLeft(tree, node) {+  var p = node,+      q = node.R,+      parent = p.U;++  if (parent) {+    if (parent.L === p) parent.L = q;+    else parent.R = q;+  } else {+    tree._ = q;+  }++  q.U = parent;+  p.U = q;+  p.R = q.L;+  if (p.R) p.R.U = p;+  q.L = p;+}++function RedBlackRotateRight(tree, node) {+  var p = node,+      q = node.L,+      parent = p.U;++  if (parent) {+    if (parent.L === p) parent.L = q;+    else parent.R = q;+  } else {+    tree._ = q;+  }++  q.U = parent;+  p.U = q;+  p.L = q.R;+  if (p.L) p.L.U = p;+  q.R = p;+}++function RedBlackFirst(node) {+  while (node.L) node = node.L;+  return node;+}++function createEdge(left, right, v0, v1) {+  var edge = [null, null],+      index = edges.push(edge) - 1;+  edge.left = left;+  edge.right = right;+  if (v0) setEdgeEnd(edge, left, right, v0);+  if (v1) setEdgeEnd(edge, right, left, v1);+  cells[left.index].halfedges.push(index);+  cells[right.index].halfedges.push(index);+  return edge;+}++function createBorderEdge(left, v0, v1) {+  var edge = [v0, v1];+  edge.left = left;+  return edge;+}++function setEdgeEnd(edge, left, right, vertex) {+  if (!edge[0] && !edge[1]) {+    edge[0] = vertex;+    edge.left = left;+    edge.right = right;+  } else if (edge.left === right) {+    edge[1] = vertex;+  } else {+    edge[0] = vertex;+  }+}++// Liang–Barsky line clipping.+function clipEdge(edge, x0, y0, x1, y1) {+  var a = edge[0],+      b = edge[1],+      ax = a[0],+      ay = a[1],+      bx = b[0],+      by = b[1],+      t0 = 0,+      t1 = 1,+      dx = bx - ax,+      dy = by - ay,+      r;++  r = x0 - ax;+  if (!dx && r > 0) return;+  r /= dx;+  if (dx < 0) {+    if (r < t0) return;+    if (r < t1) t1 = r;+  } else if (dx > 0) {+    if (r > t1) return;+    if (r > t0) t0 = r;+  }++  r = x1 - ax;+  if (!dx && r < 0) return;+  r /= dx;+  if (dx < 0) {+    if (r > t1) return;+    if (r > t0) t0 = r;+  } else if (dx > 0) {+    if (r < t0) return;+    if (r < t1) t1 = r;+  }++  r = y0 - ay;+  if (!dy && r > 0) return;+  r /= dy;+  if (dy < 0) {+    if (r < t0) return;+    if (r < t1) t1 = r;+  } else if (dy > 0) {+    if (r > t1) return;+    if (r > t0) t0 = r;+  }++  r = y1 - ay;+  if (!dy && r < 0) return;+  r /= dy;+  if (dy < 0) {+    if (r > t1) return;+    if (r > t0) t0 = r;+  } else if (dy > 0) {+    if (r < t0) return;+    if (r < t1) t1 = r;+  }++  if (!(t0 > 0) && !(t1 < 1)) return true; // TODO Better check?++  if (t0 > 0) edge[0] = [ax + t0 * dx, ay + t0 * dy];+  if (t1 < 1) edge[1] = [ax + t1 * dx, ay + t1 * dy];+  return true;+}++function connectEdge(edge, x0, y0, x1, y1) {+  var v1 = edge[1];+  if (v1) return true;++  var v0 = edge[0],+      left = edge.left,+      right = edge.right,+      lx = left[0],+      ly = left[1],+      rx = right[0],+      ry = right[1],+      fx = (lx + rx) / 2,+      fy = (ly + ry) / 2,+      fm,+      fb;++  if (ry === ly) {+    if (fx < x0 || fx >= x1) return;+    if (lx > rx) {+      if (!v0) v0 = [fx, y0];+      else if (v0[1] >= y1) return;+      v1 = [fx, y1];+    } else {+      if (!v0) v0 = [fx, y1];+      else if (v0[1] < y0) return;+      v1 = [fx, y0];+    }+  } else {+    fm = (lx - rx) / (ry - ly);+    fb = fy - fm * fx;+    if (fm < -1 || fm > 1) {+      if (lx > rx) {+        if (!v0) v0 = [(y0 - fb) / fm, y0];+        else if (v0[1] >= y1) return;+        v1 = [(y1 - fb) / fm, y1];+      } else {+        if (!v0) v0 = [(y1 - fb) / fm, y1];+        else if (v0[1] < y0) return;+        v1 = [(y0 - fb) / fm, y0];+      }+    } else {+      if (ly < ry) {+        if (!v0) v0 = [x0, fm * x0 + fb];+        else if (v0[0] >= x1) return;+        v1 = [x1, fm * x1 + fb];+      } else {+        if (!v0) v0 = [x1, fm * x1 + fb];+        else if (v0[0] < x0) return;+        v1 = [x0, fm * x0 + fb];+      }+    }+  }++  edge[0] = v0;+  edge[1] = v1;+  return true;+}++function clipEdges(x0, y0, x1, y1) {+  var i = edges.length,+      edge;++  while (i--) {+    if (!connectEdge(edge = edges[i], x0, y0, x1, y1)+        || !clipEdge(edge, x0, y0, x1, y1)+        || !(Math.abs(edge[0][0] - edge[1][0]) > epsilon$3+            || Math.abs(edge[0][1] - edge[1][1]) > epsilon$3)) {+      delete edges[i];+    }+  }+}++function createCell(site) {+  return cells[site.index] = {+    site: site,+    halfedges: []+  };+}++function cellHalfedgeAngle(cell, edge) {+  var site = cell.site,+      va = edge.left,+      vb = edge.right;+  if (site === vb) vb = va, va = site;+  if (vb) return Math.atan2(vb[1] - va[1], vb[0] - va[0]);+  if (site === va) va = edge[1], vb = edge[0];+  else va = edge[0], vb = edge[1];+  return Math.atan2(va[0] - vb[0], vb[1] - va[1]);+}++function cellHalfedgeStart(cell, edge) {+  return edge[+(edge.left !== cell.site)];+}++function cellHalfedgeEnd(cell, edge) {+  return edge[+(edge.left === cell.site)];+}++function sortCellHalfedges() {+  for (var i = 0, n = cells.length, cell, halfedges, j, m; i < n; ++i) {+    if ((cell = cells[i]) && (m = (halfedges = cell.halfedges).length)) {+      var index = new Array(m),+          array = new Array(m);+      for (j = 0; j < m; ++j) index[j] = j, array[j] = cellHalfedgeAngle(cell, edges[halfedges[j]]);+      index.sort(function(i, j) { return array[j] - array[i]; });+      for (j = 0; j < m; ++j) array[j] = halfedges[index[j]];+      for (j = 0; j < m; ++j) halfedges[j] = array[j];+    }+  }+}++function clipCells(x0, y0, x1, y1) {+  var nCells = cells.length,+      iCell,+      cell,+      site,+      iHalfedge,+      halfedges,+      nHalfedges,+      start,+      startX,+      startY,+      end,+      endX,+      endY,+      cover = true;++  for (iCell = 0; iCell < nCells; ++iCell) {+    if (cell = cells[iCell]) {+      site = cell.site;+      halfedges = cell.halfedges;+      iHalfedge = halfedges.length;++      // Remove any dangling clipped edges.+      while (iHalfedge--) {+        if (!edges[halfedges[iHalfedge]]) {+          halfedges.splice(iHalfedge, 1);+        }+      }++      // Insert any border edges as necessary.+      iHalfedge = 0, nHalfedges = halfedges.length;+      while (iHalfedge < nHalfedges) {+        end = cellHalfedgeEnd(cell, edges[halfedges[iHalfedge]]), endX = end[0], endY = end[1];+        start = cellHalfedgeStart(cell, edges[halfedges[++iHalfedge % nHalfedges]]), startX = start[0], startY = start[1];+        if (Math.abs(endX - startX) > epsilon$3 || Math.abs(endY - startY) > epsilon$3) {+          halfedges.splice(iHalfedge, 0, edges.push(createBorderEdge(site, end,+              Math.abs(endX - x0) < epsilon$3 && y1 - endY > epsilon$3 ? [x0, Math.abs(startX - x0) < epsilon$3 ? startY : y1]+              : Math.abs(endY - y1) < epsilon$3 && x1 - endX > epsilon$3 ? [Math.abs(startY - y1) < epsilon$3 ? startX : x1, y1]+              : Math.abs(endX - x1) < epsilon$3 && endY - y0 > epsilon$3 ? [x1, Math.abs(startX - x1) < epsilon$3 ? startY : y0]+              : Math.abs(endY - y0) < epsilon$3 && endX - x0 > epsilon$3 ? [Math.abs(startY - y0) < epsilon$3 ? startX : x0, y0]+              : null)) - 1);+          ++nHalfedges;+        }+      }++      if (nHalfedges) cover = false;+    }+  }++  // If there weren’t any edges, have the closest site cover the extent.+  // It doesn’t matter which corner of the extent we measure!+  if (cover) {+    var dx, dy, d2, dc = Infinity;++    for (iCell = 0, cover = null; iCell < nCells; ++iCell) {+      if (cell = cells[iCell]) {+        site = cell.site;+        dx = site[0] - x0;+        dy = site[1] - y0;+        d2 = dx * dx + dy * dy;+        if (d2 < dc) dc = d2, cover = cell;+      }+    }++    if (cover) {+      var v00 = [x0, y0], v01 = [x0, y1], v11 = [x1, y1], v10 = [x1, y0];+      cover.halfedges.push(+        edges.push(createBorderEdge(site = cover.site, v00, v01)) - 1,+        edges.push(createBorderEdge(site, v01, v11)) - 1,+        edges.push(createBorderEdge(site, v11, v10)) - 1,+        edges.push(createBorderEdge(site, v10, v00)) - 1+      );+    }+  }++  // Lastly delete any cells with no edges; these were entirely clipped.+  for (iCell = 0; iCell < nCells; ++iCell) {+    if (cell = cells[iCell]) {+      if (!cell.halfedges.length) {+        delete cells[iCell];+      }+    }+  }+}++var circlePool = [];++var firstCircle;++function Circle() {+  RedBlackNode(this);+  this.x =+  this.y =+  this.arc =+  this.site =+  this.cy = null;+}++function attachCircle(arc) {+  var lArc = arc.P,+      rArc = arc.N;++  if (!lArc || !rArc) return;++  var lSite = lArc.site,+      cSite = arc.site,+      rSite = rArc.site;++  if (lSite === rSite) return;++  var bx = cSite[0],+      by = cSite[1],+      ax = lSite[0] - bx,+      ay = lSite[1] - by,+      cx = rSite[0] - bx,+      cy = rSite[1] - by;++  var d = 2 * (ax * cy - ay * cx);+  if (d >= -epsilon2$1) return;++  var ha = ax * ax + ay * ay,+      hc = cx * cx + cy * cy,+      x = (cy * ha - ay * hc) / d,+      y = (ax * hc - cx * ha) / d;++  var circle = circlePool.pop() || new Circle;+  circle.arc = arc;+  circle.site = cSite;+  circle.x = x + bx;+  circle.y = (circle.cy = y + by) + Math.sqrt(x * x + y * y); // y bottom++  arc.circle = circle;++  var before = null,+      node = circles._;++  while (node) {+    if (circle.y < node.y || (circle.y === node.y && circle.x <= node.x)) {+      if (node.L) node = node.L;+      else { before = node.P; break; }+    } else {+      if (node.R) node = node.R;+      else { before = node; break; }+    }+  }++  circles.insert(before, circle);+  if (!before) firstCircle = circle;+}++function detachCircle(arc) {+  var circle = arc.circle;+  if (circle) {+    if (!circle.P) firstCircle = circle.N;+    circles.remove(circle);+    circlePool.push(circle);+    RedBlackNode(circle);+    arc.circle = null;+  }+}++var beachPool = [];++function Beach() {+  RedBlackNode(this);+  this.edge =+  this.site =+  this.circle = null;+}++function createBeach(site) {+  var beach = beachPool.pop() || new Beach;+  beach.site = site;+  return beach;+}++function detachBeach(beach) {+  detachCircle(beach);+  beaches.remove(beach);+  beachPool.push(beach);+  RedBlackNode(beach);+}++function removeBeach(beach) {+  var circle = beach.circle,+      x = circle.x,+      y = circle.cy,+      vertex = [x, y],+      previous = beach.P,+      next = beach.N,+      disappearing = [beach];++  detachBeach(beach);++  var lArc = previous;+  while (lArc.circle+      && Math.abs(x - lArc.circle.x) < epsilon$3+      && Math.abs(y - lArc.circle.cy) < epsilon$3) {+    previous = lArc.P;+    disappearing.unshift(lArc);+    detachBeach(lArc);+    lArc = previous;+  }++  disappearing.unshift(lArc);+  detachCircle(lArc);++  var rArc = next;+  while (rArc.circle+      && Math.abs(x - rArc.circle.x) < epsilon$3+      && Math.abs(y - rArc.circle.cy) < epsilon$3) {+    next = rArc.N;+    disappearing.push(rArc);+    detachBeach(rArc);+    rArc = next;+  }++  disappearing.push(rArc);+  detachCircle(rArc);++  var nArcs = disappearing.length,+      iArc;+  for (iArc = 1; iArc < nArcs; ++iArc) {+    rArc = disappearing[iArc];+    lArc = disappearing[iArc - 1];+    setEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex);+  }++  lArc = disappearing[0];+  rArc = disappearing[nArcs - 1];+  rArc.edge = createEdge(lArc.site, rArc.site, null, vertex);++  attachCircle(lArc);+  attachCircle(rArc);+}++function addBeach(site) {+  var x = site[0],+      directrix = site[1],+      lArc,+      rArc,+      dxl,+      dxr,+      node = beaches._;++  while (node) {+    dxl = leftBreakPoint(node, directrix) - x;+    if (dxl > epsilon$3) node = node.L; else {+      dxr = x - rightBreakPoint(node, directrix);+      if (dxr > epsilon$3) {+        if (!node.R) {+          lArc = node;+          break;+        }+        node = node.R;+      } else {+        if (dxl > -epsilon$3) {+          lArc = node.P;+          rArc = node;+        } else if (dxr > -epsilon$3) {+          lArc = node;+          rArc = node.N;+        } else {+          lArc = rArc = node;+        }+        break;+      }+    }+  }++  createCell(site);+  var newArc = createBeach(site);+  beaches.insert(lArc, newArc);++  if (!lArc && !rArc) return;++  if (lArc === rArc) {+    detachCircle(lArc);+    rArc = createBeach(lArc.site);+    beaches.insert(newArc, rArc);+    newArc.edge = rArc.edge = createEdge(lArc.site, newArc.site);+    attachCircle(lArc);+    attachCircle(rArc);+    return;+  }++  if (!rArc) { // && lArc+    newArc.edge = createEdge(lArc.site, newArc.site);+    return;+  }++  // else lArc !== rArc+  detachCircle(lArc);+  detachCircle(rArc);++  var lSite = lArc.site,+      ax = lSite[0],+      ay = lSite[1],+      bx = site[0] - ax,+      by = site[1] - ay,+      rSite = rArc.site,+      cx = rSite[0] - ax,+      cy = rSite[1] - ay,+      d = 2 * (bx * cy - by * cx),+      hb = bx * bx + by * by,+      hc = cx * cx + cy * cy,+      vertex = [(cy * hb - by * hc) / d + ax, (bx * hc - cx * hb) / d + ay];++  setEdgeEnd(rArc.edge, lSite, rSite, vertex);+  newArc.edge = createEdge(lSite, site, null, vertex);+  rArc.edge = createEdge(site, rSite, null, vertex);+  attachCircle(lArc);+  attachCircle(rArc);+}++function leftBreakPoint(arc, directrix) {+  var site = arc.site,+      rfocx = site[0],+      rfocy = site[1],+      pby2 = rfocy - directrix;++  if (!pby2) return rfocx;++  var lArc = arc.P;+  if (!lArc) return -Infinity;++  site = lArc.site;+  var lfocx = site[0],+      lfocy = site[1],+      plby2 = lfocy - directrix;++  if (!plby2) return lfocx;++  var hl = lfocx - rfocx,+      aby2 = 1 / pby2 - 1 / plby2,+      b = hl / plby2;++  if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx;++  return (rfocx + lfocx) / 2;+}++function rightBreakPoint(arc, directrix) {+  var rArc = arc.N;+  if (rArc) return leftBreakPoint(rArc, directrix);+  var site = arc.site;+  return site[1] === directrix ? site[0] : Infinity;+}++var epsilon$3 = 1e-6;+var epsilon2$1 = 1e-12;+var beaches;+var cells;+var circles;+var edges;++function triangleArea(a, b, c) {+  return (a[0] - c[0]) * (b[1] - a[1]) - (a[0] - b[0]) * (c[1] - a[1]);+}++function lexicographic(a, b) {+  return b[1] - a[1]+      || b[0] - a[0];+}++function Diagram(sites, extent) {+  var site = sites.sort(lexicographic).pop(),+      x,+      y,+      circle;++  edges = [];+  cells = new Array(sites.length);+  beaches = new RedBlackTree;+  circles = new RedBlackTree;++  while (true) {+    circle = firstCircle;+    if (site && (!circle || site[1] < circle.y || (site[1] === circle.y && site[0] < circle.x))) {+      if (site[0] !== x || site[1] !== y) {+        addBeach(site);+        x = site[0], y = site[1];+      }+      site = sites.pop();+    } else if (circle) {+      removeBeach(circle.arc);+    } else {+      break;+    }+  }++  sortCellHalfedges();++  if (extent) {+    var x0 = +extent[0][0],+        y0 = +extent[0][1],+        x1 = +extent[1][0],+        y1 = +extent[1][1];+    clipEdges(x0, y0, x1, y1);+    clipCells(x0, y0, x1, y1);+  }++  this.edges = edges;+  this.cells = cells;++  beaches =+  circles =+  edges =+  cells = null;+}++Diagram.prototype = {+  constructor: Diagram,++  polygons: function() {+    var edges = this.edges;++    return this.cells.map(function(cell) {+      var polygon = cell.halfedges.map(function(i) { return cellHalfedgeStart(cell, edges[i]); });+      polygon.data = cell.site.data;+      return polygon;+    });+  },++  triangles: function() {+    var triangles = [],+        edges = this.edges;++    this.cells.forEach(function(cell, i) {+      var site = cell.site,+          halfedges = cell.halfedges,+          j = -1,+          m = halfedges.length,+          s0,+          e1 = edges[halfedges[m - 1]],+          s1 = e1.left === site ? e1.right : e1.left;++      while (++j < m) {+        s0 = s1;+        e1 = edges[halfedges[j]];+        s1 = e1.left === site ? e1.right : e1.left;+        if (s0 && s1 && i < s0.index && i < s1.index && triangleArea(site, s0, s1) < 0) {+          triangles.push([site.data, s0.data, s1.data]);+        }+      }+    });++    return triangles;+  },++  links: function() {+    return this.edges.filter(function(edge) {+      return edge.right;+    }).map(function(edge) {+      return {+        source: edge.left.data,+        target: edge.right.data+      };+    });+  },++  find: function(x, y, radius) {+    var that = this,+        i0, i1 = that._found || 0,+        cell = that.cells[i1] || that.cells[i1 = 0],+        dx = x - cell.site[0],+        dy = y - cell.site[1],+        d2 = dx * dx + dy * dy;++    do {+      cell = that.cells[i0 = i1], i1 = null;+      cell.halfedges.forEach(function(e) {+        var edge = that.edges[e], v = edge.left;+        if ((v === cell.site || !v) && !(v = edge.right)) return;+        var vx = x - v[0],+            vy = y - v[1],+            v2 = vx * vx + vy * vy;+        if (v2 < d2) d2 = v2, i1 = v.index;+      });+    } while (i1 !== null);++    that._found = i0;++    return radius == null || d2 <= radius * radius ? cell.site : null;+  }+};++var voronoi = function() {+  var x$$1 = x$4,+      y$$1 = y$4,+      extent = null;++  function voronoi(data) {+    return new Diagram(data.map(function(d, i) {+      var s = [Math.round(x$$1(d, i, data) / epsilon$3) * epsilon$3, Math.round(y$$1(d, i, data) / epsilon$3) * epsilon$3];+      s.index = i;+      s.data = d;+      return s;+    }), extent);+  }++  voronoi.polygons = function(data) {+    return voronoi(data).polygons();+  };++  voronoi.links = function(data) {+    return voronoi(data).links();+  };++  voronoi.triangles = function(data) {+    return voronoi(data).triangles();+  };++  voronoi.x = function(_) {+    return arguments.length ? (x$$1 = typeof _ === "function" ? _ : constant$9(+_), voronoi) : x$$1;+  };++  voronoi.y = function(_) {+    return arguments.length ? (y$$1 = typeof _ === "function" ? _ : constant$9(+_), voronoi) : y$$1;+  };++  voronoi.extent = function(_) {+    return arguments.length ? (extent = _ == null ? null : [[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]], voronoi) : extent && [[extent[0][0], extent[0][1]], [extent[1][0], extent[1][1]]];+  };++  voronoi.size = function(_) {+    return arguments.length ? (extent = _ == null ? null : [[0, 0], [+_[0], +_[1]]], voronoi) : extent && [extent[1][0] - extent[0][0], extent[1][1] - extent[0][1]];+  };++  return voronoi;+};++var constant$10 = function(x) {+  return function() {+    return x;+  };+};++function ZoomEvent(target, type, transform) {+  this.target = target;+  this.type = type;+  this.transform = transform;+}++function Transform(k, x, y) {+  this.k = k;+  this.x = x;+  this.y = y;+}++Transform.prototype = {+  constructor: Transform,+  scale: function(k) {+    return k === 1 ? this : new Transform(this.k * k, this.x, this.y);+  },+  translate: function(x, y) {+    return x === 0 & y === 0 ? this : new Transform(this.k, this.x + this.k * x, this.y + this.k * y);+  },+  apply: function(point) {+    return [point[0] * this.k + this.x, point[1] * this.k + this.y];+  },+  applyX: function(x) {+    return x * this.k + this.x;+  },+  applyY: function(y) {+    return y * this.k + this.y;+  },+  invert: function(location) {+    return [(location[0] - this.x) / this.k, (location[1] - this.y) / this.k];+  },+  invertX: function(x) {+    return (x - this.x) / this.k;+  },+  invertY: function(y) {+    return (y - this.y) / this.k;+  },+  rescaleX: function(x) {+    return x.copy().domain(x.range().map(this.invertX, this).map(x.invert, x));+  },+  rescaleY: function(y) {+    return y.copy().domain(y.range().map(this.invertY, this).map(y.invert, y));+  },+  toString: function() {+    return "translate(" + this.x + "," + this.y + ") scale(" + this.k + ")";+  }+};++var identity$6 = new Transform(1, 0, 0);++transform.prototype = Transform.prototype;++function transform(node) {+  return node.__zoom || identity$6;+}++function nopropagation$1() {+  exports.event.stopImmediatePropagation();+}++var noevent$1 = function() {+  exports.event.preventDefault();+  exports.event.stopImmediatePropagation();+};++// Ignore right-click, since that should open the context menu.+function defaultFilter$1() {+  return !exports.event.button;+}++function defaultExtent() {+  var e = this, w, h;+  if (e instanceof SVGElement) {+    e = e.ownerSVGElement || e;+    w = e.width.baseVal.value;+    h = e.height.baseVal.value;+  } else {+    w = e.clientWidth;+    h = e.clientHeight;+  }+  return [[0, 0], [w, h]];+}++function defaultTransform() {+  return this.__zoom || identity$6;+}++var zoom = function() {+  var filter = defaultFilter$1,+      extent = defaultExtent,+      k0 = 0,+      k1 = Infinity,+      x0 = -k1,+      x1 = k1,+      y0 = x0,+      y1 = x1,+      duration = 250,+      interpolate$$1 = interpolateZoom,+      gestures = [],+      listeners = dispatch("start", "zoom", "end"),+      touchstarting,+      touchending,+      touchDelay = 500,+      wheelDelay = 150;++  function zoom(selection$$1) {+    selection$$1+        .on("wheel.zoom", wheeled)+        .on("mousedown.zoom", mousedowned)+        .on("dblclick.zoom", dblclicked)+        .on("touchstart.zoom", touchstarted)+        .on("touchmove.zoom", touchmoved)+        .on("touchend.zoom touchcancel.zoom", touchended)+        .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)")+        .property("__zoom", defaultTransform);+  }++  zoom.transform = function(collection, transform) {+    var selection$$1 = collection.selection ? collection.selection() : collection;+    selection$$1.property("__zoom", defaultTransform);+    if (collection !== selection$$1) {+      schedule(collection, transform);+    } else {+      selection$$1.interrupt().each(function() {+        gesture(this, arguments)+            .start()+            .zoom(null, typeof transform === "function" ? transform.apply(this, arguments) : transform)+            .end();+      });+    }+  };++  zoom.scaleBy = function(selection$$1, k) {+    zoom.scaleTo(selection$$1, function() {+      var k0 = this.__zoom.k,+          k1 = typeof k === "function" ? k.apply(this, arguments) : k;+      return k0 * k1;+    });+  };++  zoom.scaleTo = function(selection$$1, k) {+    zoom.transform(selection$$1, function() {+      var e = extent.apply(this, arguments),+          t0 = this.__zoom,+          p0 = centroid(e),+          p1 = t0.invert(p0),+          k1 = typeof k === "function" ? k.apply(this, arguments) : k;+      return constrain(translate(scale(t0, k1), p0, p1), e);+    });+  };++  zoom.translateBy = function(selection$$1, x, y) {+    zoom.transform(selection$$1, function() {+      return constrain(this.__zoom.translate(+        typeof x === "function" ? x.apply(this, arguments) : x,+        typeof y === "function" ? y.apply(this, arguments) : y+      ), extent.apply(this, arguments));+    });+  };++  function scale(transform, k) {+    k = Math.max(k0, Math.min(k1, k));+    return k === transform.k ? transform : new Transform(k, transform.x, transform.y);+  }++  function translate(transform, p0, p1) {+    var x = p0[0] - p1[0] * transform.k, y = p0[1] - p1[1] * transform.k;+    return x === transform.x && y === transform.y ? transform : new Transform(transform.k, x, y);+  }++  function constrain(transform, extent) {+    var dx0 = transform.invertX(extent[0][0]) - x0,+        dx1 = transform.invertX(extent[1][0]) - x1,+        dy0 = transform.invertY(extent[0][1]) - y0,+        dy1 = transform.invertY(extent[1][1]) - y1;+    return transform.translate(+      dx1 > dx0 ? (dx0 + dx1) / 2 : Math.min(0, dx0) || Math.max(0, dx1),+      dy1 > dy0 ? (dy0 + dy1) / 2 : Math.min(0, dy0) || Math.max(0, dy1)+    );+  }++  function centroid(extent) {+    return [(+extent[0][0] + +extent[1][0]) / 2, (+extent[0][1] + +extent[1][1]) / 2];+  }++  function schedule(transition$$1, transform, center) {+    transition$$1+        .on("start.zoom", function() { gesture(this, arguments).start(); })+        .on("interrupt.zoom end.zoom", function() { gesture(this, arguments).end(); })+        .tween("zoom", function() {+          var that = this,+              args = arguments,+              g = gesture(that, args),+              e = extent.apply(that, args),+              p = center || centroid(e),+              w = Math.max(e[1][0] - e[0][0], e[1][1] - e[0][1]),+              a = that.__zoom,+              b = typeof transform === "function" ? transform.apply(that, args) : transform,+              i = interpolate$$1(a.invert(p).concat(w / a.k), b.invert(p).concat(w / b.k));+          return function(t) {+            if (t === 1) t = b; // Avoid rounding error on end.+            else { var l = i(t), k = w / l[2]; t = new Transform(k, p[0] - l[0] * k, p[1] - l[1] * k); }+            g.zoom(null, t);+          };+        });+  }++  function gesture(that, args) {+    for (var i = 0, n = gestures.length, g; i < n; ++i) {+      if ((g = gestures[i]).that === that) {+        return g;+      }+    }+    return new Gesture(that, args);+  }++  function Gesture(that, args) {+    this.that = that;+    this.args = args;+    this.index = -1;+    this.active = 0;+    this.extent = extent.apply(that, args);+  }++  Gesture.prototype = {+    start: function() {+      if (++this.active === 1) {+        this.index = gestures.push(this) - 1;+        this.emit("start");+      }+      return this;+    },+    zoom: function(key, transform) {+      if (this.mouse && key !== "mouse") this.mouse[1] = transform.invert(this.mouse[0]);+      if (this.touch0 && key !== "touch") this.touch0[1] = transform.invert(this.touch0[0]);+      if (this.touch1 && key !== "touch") this.touch1[1] = transform.invert(this.touch1[0]);+      this.that.__zoom = transform;+      this.emit("zoom");+      return this;+    },+    end: function() {+      if (--this.active === 0) {+        gestures.splice(this.index, 1);+        this.index = -1;+        this.emit("end");+      }+      return this;+    },+    emit: function(type) {+      customEvent(new ZoomEvent(zoom, type, this.that.__zoom), listeners.apply, listeners, [type, this.that, this.args]);+    }+  };++  function wheeled() {+    if (!filter.apply(this, arguments)) return;+    var g = gesture(this, arguments),+        t = this.__zoom,+        k = Math.max(k0, Math.min(k1, t.k * Math.pow(2, -exports.event.deltaY * (exports.event.deltaMode ? 120 : 1) / 500))),+        p = mouse(this);++    // If the mouse is in the same location as before, reuse it.+    // If there were recent wheel events, reset the wheel idle timeout.+    if (g.wheel) {+      if (g.mouse[0][0] !== p[0] || g.mouse[0][1] !== p[1]) {+        g.mouse[1] = t.invert(g.mouse[0] = p);+      }+      clearTimeout(g.wheel);+    }++    // If this wheel event won’t trigger a transform change, ignore it.+    else if (t.k === k) return;++    // Otherwise, capture the mouse point and location at the start.+    else {+      g.mouse = [p, t.invert(p)];+      interrupt(this);+      g.start();+    }++    noevent$1();+    g.wheel = setTimeout(wheelidled, wheelDelay);+    g.zoom("mouse", constrain(translate(scale(t, k), g.mouse[0], g.mouse[1]), g.extent));++    function wheelidled() {+      g.wheel = null;+      g.end();+    }+  }++  function mousedowned() {+    if (touchending || !filter.apply(this, arguments)) return;+    var g = gesture(this, arguments),+        v = select(exports.event.view).on("mousemove.zoom", mousemoved, true).on("mouseup.zoom", mouseupped, true),+        p = mouse(this);++    dragDisable(exports.event.view);+    nopropagation$1();+    g.mouse = [p, this.__zoom.invert(p)];+    interrupt(this);+    g.start();++    function mousemoved() {+      noevent$1();+      g.moved = true;+      g.zoom("mouse", constrain(translate(g.that.__zoom, g.mouse[0] = mouse(g.that), g.mouse[1]), g.extent));+    }++    function mouseupped() {+      v.on("mousemove.zoom mouseup.zoom", null);+      yesdrag(exports.event.view, g.moved);+      noevent$1();+      g.end();+    }+  }++  function dblclicked() {+    if (!filter.apply(this, arguments)) return;+    var t0 = this.__zoom,+        p0 = mouse(this),+        p1 = t0.invert(p0),+        k1 = t0.k * (exports.event.shiftKey ? 0.5 : 2),+        t1 = constrain(translate(scale(t0, k1), p0, p1), extent.apply(this, arguments));++    noevent$1();+    if (duration > 0) select(this).transition().duration(duration).call(schedule, t1, p0);+    else select(this).call(zoom.transform, t1);+  }++  function touchstarted() {+    if (!filter.apply(this, arguments)) return;+    var g = gesture(this, arguments),+        touches$$1 = exports.event.changedTouches,+        n = touches$$1.length, i, t, p;++    nopropagation$1();+    for (i = 0; i < n; ++i) {+      t = touches$$1[i], p = touch(this, touches$$1, t.identifier);+      p = [p, this.__zoom.invert(p), t.identifier];+      if (!g.touch0) g.touch0 = p;+      else if (!g.touch1) g.touch1 = p;+    }++    // If this is a dbltap, reroute to the (optional) dblclick.zoom handler.+    if (touchstarting) {+      touchstarting = clearTimeout(touchstarting);+      if (!g.touch1) {+        g.end();+        p = select(this).on("dblclick.zoom");+        if (p) p.apply(this, arguments);+        return;+      }+    }++    if (exports.event.touches.length === n) {+      touchstarting = setTimeout(function() { touchstarting = null; }, touchDelay);+      interrupt(this);+      g.start();+    }+  }++  function touchmoved() {+    var g = gesture(this, arguments),+        touches$$1 = exports.event.changedTouches,+        n = touches$$1.length, i, t, p, l;++    noevent$1();+    if (touchstarting) touchstarting = clearTimeout(touchstarting);+    for (i = 0; i < n; ++i) {+      t = touches$$1[i], p = touch(this, touches$$1, t.identifier);+      if (g.touch0 && g.touch0[2] === t.identifier) g.touch0[0] = p;+      else if (g.touch1 && g.touch1[2] === t.identifier) g.touch1[0] = p;+    }+    t = g.that.__zoom;+    if (g.touch1) {+      var p0 = g.touch0[0], l0 = g.touch0[1],+          p1 = g.touch1[0], l1 = g.touch1[1],+          dp = (dp = p1[0] - p0[0]) * dp + (dp = p1[1] - p0[1]) * dp,+          dl = (dl = l1[0] - l0[0]) * dl + (dl = l1[1] - l0[1]) * dl;+      t = scale(t, Math.sqrt(dp / dl));+      p = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2];+      l = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2];+    }+    else if (g.touch0) p = g.touch0[0], l = g.touch0[1];+    else return;+    g.zoom("touch", constrain(translate(t, p, l), g.extent));+  }++  function touchended() {+    var g = gesture(this, arguments),+        touches$$1 = exports.event.changedTouches,+        n = touches$$1.length, i, t;++    nopropagation$1();+    if (touchending) clearTimeout(touchending);+    touchending = setTimeout(function() { touchending = null; }, touchDelay);+    for (i = 0; i < n; ++i) {+      t = touches$$1[i];+      if (g.touch0 && g.touch0[2] === t.identifier) delete g.touch0;+      else if (g.touch1 && g.touch1[2] === t.identifier) delete g.touch1;+    }+    if (g.touch1 && !g.touch0) g.touch0 = g.touch1, delete g.touch1;+    if (!g.touch0) g.end();+  }++  zoom.filter = function(_) {+    return arguments.length ? (filter = typeof _ === "function" ? _ : constant$10(!!_), zoom) : filter;+  };++  zoom.extent = function(_) {+    return arguments.length ? (extent = typeof _ === "function" ? _ : constant$10([[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]]), zoom) : extent;+  };++  zoom.scaleExtent = function(_) {+    return arguments.length ? (k0 = +_[0], k1 = +_[1], zoom) : [k0, k1];+  };++  zoom.translateExtent = function(_) {+    return arguments.length ? (x0 = +_[0][0], x1 = +_[1][0], y0 = +_[0][1], y1 = +_[1][1], zoom) : [[x0, y0], [x1, y1]];+  };++  zoom.duration = function(_) {+    return arguments.length ? (duration = +_, zoom) : duration;+  };++  zoom.interpolate = function(_) {+    return arguments.length ? (interpolate$$1 = _, zoom) : interpolate$$1;+  };++  zoom.on = function() {+    var value = listeners.on.apply(listeners, arguments);+    return value === listeners ? zoom : value;+  };++  return zoom;+};++var constant$11 = function(x) {+  return function() {+    return x;+  };+};++var BrushEvent = function(target, type, selection) {+  this.target = target;+  this.type = type;+  this.selection = selection;+};++function nopropagation$2() {+  exports.event.stopImmediatePropagation();+}++var noevent$2 = function() {+  exports.event.preventDefault();+  exports.event.stopImmediatePropagation();+};++var MODE_DRAG = {name: "drag"};+var MODE_SPACE = {name: "space"};+var MODE_HANDLE = {name: "handle"};+var MODE_CENTER = {name: "center"};++var X = {+  name: "x",+  handles: ["e", "w"].map(type$1),+  input: function(x, e) { return x && [[x[0], e[0][1]], [x[1], e[1][1]]]; },+  output: function(xy) { return xy && [xy[0][0], xy[1][0]]; }+};++var Y = {+  name: "y",+  handles: ["n", "s"].map(type$1),+  input: function(y, e) { return y && [[e[0][0], y[0]], [e[1][0], y[1]]]; },+  output: function(xy) { return xy && [xy[0][1], xy[1][1]]; }+};++var XY = {+  name: "xy",+  handles: ["n", "e", "s", "w", "nw", "ne", "se", "sw"].map(type$1),+  input: function(xy) { return xy; },+  output: function(xy) { return xy; }+};++var cursors = {+  overlay: "crosshair",+  selection: "move",+  n: "ns-resize",+  e: "ew-resize",+  s: "ns-resize",+  w: "ew-resize",+  nw: "nwse-resize",+  ne: "nesw-resize",+  se: "nwse-resize",+  sw: "nesw-resize"+};++var flipX = {+  e: "w",+  w: "e",+  nw: "ne",+  ne: "nw",+  se: "sw",+  sw: "se"+};++var flipY = {+  n: "s",+  s: "n",+  nw: "sw",+  ne: "se",+  se: "ne",+  sw: "nw"+};++var signsX = {+  overlay: +1,+  selection: +1,+  n: null,+  e: +1,+  s: null,+  w: -1,+  nw: -1,+  ne: +1,+  se: +1,+  sw: -1+};++var signsY = {+  overlay: +1,+  selection: +1,+  n: -1,+  e: null,+  s: +1,+  w: null,+  nw: -1,+  ne: -1,+  se: +1,+  sw: +1+};++function type$1(t) {+  return {type: t};+}++// Ignore right-click, since that should open the context menu.+function defaultFilter$2() {+  return !exports.event.button;+}++function defaultExtent$1() {+  var svg = this.ownerSVGElement || this;+  return [[0, 0], [svg.width.baseVal.value, svg.height.baseVal.value]];+}++// Like d3.local, but with the name “__brush” rather than auto-generated.+function local$1(node) {+  while (!node.__brush) if (!(node = node.parentNode)) return;+  return node.__brush;+}++function empty$1(extent) {+  return extent[0][0] === extent[1][0]+      || extent[0][1] === extent[1][1];+}++function brushSelection(node) {+  var state = node.__brush;+  return state ? state.dim.output(state.selection) : null;+}++function brushX() {+  return brush$1(X);+}++function brushY() {+  return brush$1(Y);+}++var brush = function() {+  return brush$1(XY);+};++function brush$1(dim) {+  var extent = defaultExtent$1,+      filter = defaultFilter$2,+      listeners = dispatch(brush, "start", "brush", "end"),+      handleSize = 6,+      touchending;++  function brush(group) {+    var overlay = group+        .property("__brush", initialize)+      .selectAll(".overlay")+      .data([type$1("overlay")]);++    overlay.enter().append("rect")+        .attr("class", "overlay")+        .attr("pointer-events", "all")+        .attr("cursor", cursors.overlay)+      .merge(overlay)+        .each(function() {+          var extent = local$1(this).extent;+          select(this)+              .attr("x", extent[0][0])+              .attr("y", extent[0][1])+              .attr("width", extent[1][0] - extent[0][0])+              .attr("height", extent[1][1] - extent[0][1]);+        });++    group.selectAll(".selection")+      .data([type$1("selection")])+      .enter().append("rect")+        .attr("class", "selection")+        .attr("cursor", cursors.selection)+        .attr("fill", "#777")+        .attr("fill-opacity", 0.3)+        .attr("stroke", "#fff")+        .attr("shape-rendering", "crispEdges");++    var handle = group.selectAll(".handle")+      .data(dim.handles, function(d) { return d.type; });++    handle.exit().remove();++    handle.enter().append("rect")+        .attr("class", function(d) { return "handle handle--" + d.type; })+        .attr("cursor", function(d) { return cursors[d.type]; });++    group+        .each(redraw)+        .attr("fill", "none")+        .attr("pointer-events", "all")+        .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)")+        .on("mousedown.brush touchstart.brush", started);+  }++  brush.move = function(group, selection$$1) {+    if (group.selection) {+      group+          .on("start.brush", function() { emitter(this, arguments).beforestart().start(); })+          .on("interrupt.brush end.brush", function() { emitter(this, arguments).end(); })+          .tween("brush", function() {+            var that = this,+                state = that.__brush,+                emit = emitter(that, arguments),+                selection0 = state.selection,+                selection1 = dim.input(typeof selection$$1 === "function" ? selection$$1.apply(this, arguments) : selection$$1, state.extent),+                i = interpolate(selection0, selection1);++            function tween(t) {+              state.selection = t === 1 && empty$1(selection1) ? null : i(t);+              redraw.call(that);+              emit.brush();+            }++            return selection0 && selection1 ? tween : tween(1);+          });+    } else {+      group+          .each(function() {+            var that = this,+                args = arguments,+                state = that.__brush,+                selection1 = dim.input(typeof selection$$1 === "function" ? selection$$1.apply(that, args) : selection$$1, state.extent),+                emit = emitter(that, args).beforestart();++            interrupt(that);+            state.selection = selection1 == null || empty$1(selection1) ? null : selection1;+            redraw.call(that);+            emit.start().brush().end();+          });+    }+  };++  function redraw() {+    var group = select(this),+        selection$$1 = local$1(this).selection;++    if (selection$$1) {+      group.selectAll(".selection")+          .style("display", null)+          .attr("x", selection$$1[0][0])+          .attr("y", selection$$1[0][1])+          .attr("width", selection$$1[1][0] - selection$$1[0][0])+          .attr("height", selection$$1[1][1] - selection$$1[0][1]);++      group.selectAll(".handle")+          .style("display", null)+          .attr("x", function(d) { return d.type[d.type.length - 1] === "e" ? selection$$1[1][0] - handleSize / 2 : selection$$1[0][0] - handleSize / 2; })+          .attr("y", function(d) { return d.type[0] === "s" ? selection$$1[1][1] - handleSize / 2 : selection$$1[0][1] - handleSize / 2; })+          .attr("width", function(d) { return d.type === "n" || d.type === "s" ? selection$$1[1][0] - selection$$1[0][0] + handleSize : handleSize; })+          .attr("height", function(d) { return d.type === "e" || d.type === "w" ? selection$$1[1][1] - selection$$1[0][1] + handleSize : handleSize; });+    }++    else {+      group.selectAll(".selection,.handle")+          .style("display", "none")+          .attr("x", null)+          .attr("y", null)+          .attr("width", null)+          .attr("height", null);+    }+  }++  function emitter(that, args) {+    return that.__brush.emitter || new Emitter(that, args);+  }++  function Emitter(that, args) {+    this.that = that;+    this.args = args;+    this.state = that.__brush;+    this.active = 0;+  }++  Emitter.prototype = {+    beforestart: function() {+      if (++this.active === 1) this.state.emitter = this, this.starting = true;+      return this;+    },+    start: function() {+      if (this.starting) this.starting = false, this.emit("start");+      return this;+    },+    brush: function() {+      this.emit("brush");+      return this;+    },+    end: function() {+      if (--this.active === 0) delete this.state.emitter, this.emit("end");+      return this;+    },+    emit: function(type) {+      customEvent(new BrushEvent(brush, type, dim.output(this.state.selection)), listeners.apply, listeners, [type, this.that, this.args]);+    }+  };++  function started() {+    if (exports.event.touches) { if (exports.event.changedTouches.length < exports.event.touches.length) return noevent$2(); }+    else if (touchending) return;+    if (!filter.apply(this, arguments)) return;++    var that = this,+        type = exports.event.target.__data__.type,+        mode = (exports.event.metaKey ? type = "overlay" : type) === "selection" ? MODE_DRAG : (exports.event.altKey ? MODE_CENTER : MODE_HANDLE),+        signX = dim === Y ? null : signsX[type],+        signY = dim === X ? null : signsY[type],+        state = local$1(that),+        extent = state.extent,+        selection$$1 = state.selection,+        W = extent[0][0], w0, w1,+        N = extent[0][1], n0, n1,+        E = extent[1][0], e0, e1,+        S = extent[1][1], s0, s1,+        dx,+        dy,+        moving,+        shifting = signX && signY && exports.event.shiftKey,+        lockX,+        lockY,+        point0 = mouse(that),+        point = point0,+        emit = emitter(that, arguments).beforestart();++    if (type === "overlay") {+      state.selection = selection$$1 = [+        [w0 = dim === Y ? W : point0[0], n0 = dim === X ? N : point0[1]],+        [e0 = dim === Y ? E : w0, s0 = dim === X ? S : n0]+      ];+    } else {+      w0 = selection$$1[0][0];+      n0 = selection$$1[0][1];+      e0 = selection$$1[1][0];+      s0 = selection$$1[1][1];+    }++    w1 = w0;+    n1 = n0;+    e1 = e0;+    s1 = s0;++    var group = select(that)+        .attr("pointer-events", "none");++    var overlay = group.selectAll(".overlay")+        .attr("cursor", cursors[type]);++    if (exports.event.touches) {+      group+          .on("touchmove.brush", moved, true)+          .on("touchend.brush touchcancel.brush", ended, true);+    } else {+      var view = select(exports.event.view)+          .on("keydown.brush", keydowned, true)+          .on("keyup.brush", keyupped, true)+          .on("mousemove.brush", moved, true)+          .on("mouseup.brush", ended, true);++      dragDisable(exports.event.view);+    }++    nopropagation$2();+    interrupt(that);+    redraw.call(that);+    emit.start();++    function moved() {+      var point1 = mouse(that);+      if (shifting && !lockX && !lockY) {+        if (Math.abs(point1[0] - point[0]) > Math.abs(point1[1] - point[1])) lockY = true;+        else lockX = true;+      }+      point = point1;+      moving = true;+      noevent$2();+      move();+    }++    function move() {+      var t;++      dx = point[0] - point0[0];+      dy = point[1] - point0[1];++      switch (mode) {+        case MODE_SPACE:+        case MODE_DRAG: {+          if (signX) dx = Math.max(W - w0, Math.min(E - e0, dx)), w1 = w0 + dx, e1 = e0 + dx;+          if (signY) dy = Math.max(N - n0, Math.min(S - s0, dy)), n1 = n0 + dy, s1 = s0 + dy;+          break;+        }+        case MODE_HANDLE: {+          if (signX < 0) dx = Math.max(W - w0, Math.min(E - w0, dx)), w1 = w0 + dx, e1 = e0;+          else if (signX > 0) dx = Math.max(W - e0, Math.min(E - e0, dx)), w1 = w0, e1 = e0 + dx;+          if (signY < 0) dy = Math.max(N - n0, Math.min(S - n0, dy)), n1 = n0 + dy, s1 = s0;+          else if (signY > 0) dy = Math.max(N - s0, Math.min(S - s0, dy)), n1 = n0, s1 = s0 + dy;+          break;+        }+        case MODE_CENTER: {+          if (signX) w1 = Math.max(W, Math.min(E, w0 - dx * signX)), e1 = Math.max(W, Math.min(E, e0 + dx * signX));+          if (signY) n1 = Math.max(N, Math.min(S, n0 - dy * signY)), s1 = Math.max(N, Math.min(S, s0 + dy * signY));+          break;+        }+      }++      if (e1 < w1) {+        signX *= -1;+        t = w0, w0 = e0, e0 = t;+        t = w1, w1 = e1, e1 = t;+        if (type in flipX) overlay.attr("cursor", cursors[type = flipX[type]]);+      }++      if (s1 < n1) {+        signY *= -1;+        t = n0, n0 = s0, s0 = t;+        t = n1, n1 = s1, s1 = t;+        if (type in flipY) overlay.attr("cursor", cursors[type = flipY[type]]);+      }++      if (state.selection) selection$$1 = state.selection; // May be set by brush.move!+      if (lockX) w1 = selection$$1[0][0], e1 = selection$$1[1][0];+      if (lockY) n1 = selection$$1[0][1], s1 = selection$$1[1][1];++      if (selection$$1[0][0] !== w1+          || selection$$1[0][1] !== n1+          || selection$$1[1][0] !== e1+          || selection$$1[1][1] !== s1) {+        state.selection = [[w1, n1], [e1, s1]];+        redraw.call(that);+        emit.brush();+      }+    }++    function ended() {+      nopropagation$2();+      if (exports.event.touches) {+        if (exports.event.touches.length) return;+        if (touchending) clearTimeout(touchending);+        touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed!+        group.on("touchmove.brush touchend.brush touchcancel.brush", null);+      } else {+        yesdrag(exports.event.view, moving);+        view.on("keydown.brush keyup.brush mousemove.brush mouseup.brush", null);+      }+      group.attr("pointer-events", "all");+      overlay.attr("cursor", cursors.overlay);+      if (state.selection) selection$$1 = state.selection; // May be set by brush.move (on start)!+      if (empty$1(selection$$1)) state.selection = null, redraw.call(that);+      emit.end();+    }++    function keydowned() {+      switch (exports.event.keyCode) {+        case 16: { // SHIFT+          shifting = signX && signY;+          break;+        }+        case 18: { // ALT+          if (mode === MODE_HANDLE) {+            if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX;+            if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY;+            mode = MODE_CENTER;+            move();+          }+          break;+        }+        case 32: { // SPACE; takes priority over ALT+          if (mode === MODE_HANDLE || mode === MODE_CENTER) {+            if (signX < 0) e0 = e1 - dx; else if (signX > 0) w0 = w1 - dx;+            if (signY < 0) s0 = s1 - dy; else if (signY > 0) n0 = n1 - dy;+            mode = MODE_SPACE;+            overlay.attr("cursor", cursors.selection);+            move();+          }+          break;+        }+        default: return;+      }+      noevent$2();+    }++    function keyupped() {+      switch (exports.event.keyCode) {+        case 16: { // SHIFT+          if (shifting) {+            lockX = lockY = shifting = false;+            move();+          }+          break;+        }+        case 18: { // ALT+          if (mode === MODE_CENTER) {+            if (signX < 0) e0 = e1; else if (signX > 0) w0 = w1;+            if (signY < 0) s0 = s1; else if (signY > 0) n0 = n1;+            mode = MODE_HANDLE;+            move();+          }+          break;+        }+        case 32: { // SPACE+          if (mode === MODE_SPACE) {+            if (exports.event.altKey) {+              if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX;+              if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY;+              mode = MODE_CENTER;+            } else {+              if (signX < 0) e0 = e1; else if (signX > 0) w0 = w1;+              if (signY < 0) s0 = s1; else if (signY > 0) n0 = n1;+              mode = MODE_HANDLE;+            }+            overlay.attr("cursor", cursors[type]);+            move();+          }+          break;+        }+        default: return;+      }+      noevent$2();+    }+  }++  function initialize() {+    var state = this.__brush || {selection: null};+    state.extent = extent.apply(this, arguments);+    state.dim = dim;+    return state;+  }++  brush.extent = function(_) {+    return arguments.length ? (extent = typeof _ === "function" ? _ : constant$11([[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]]), brush) : extent;+  };++  brush.filter = function(_) {+    return arguments.length ? (filter = typeof _ === "function" ? _ : constant$11(!!_), brush) : filter;+  };++  brush.handleSize = function(_) {+    return arguments.length ? (handleSize = +_, brush) : handleSize;+  };++  brush.on = function() {+    var value = listeners.on.apply(listeners, arguments);+    return value === listeners ? brush : value;+  };++  return brush;+}++var cos = Math.cos;+var sin = Math.sin;+var pi$3 = Math.PI;+var halfPi$2 = pi$3 / 2;+var tau$3 = pi$3 * 2;+var max$1 = Math.max;++function compareValue(compare) {+  return function(a, b) {+    return compare(+      a.source.value + a.target.value,+      b.source.value + b.target.value+    );+  };+}++var chord = function() {+  var padAngle = 0,+      sortGroups = null,+      sortSubgroups = null,+      sortChords = null;++  function chord(matrix) {+    var n = matrix.length,+        groupSums = [],+        groupIndex = range(n),+        subgroupIndex = [],+        chords = [],+        groups = chords.groups = new Array(n),+        subgroups = new Array(n * n),+        k,+        x,+        x0,+        dx,+        i,+        j;++    // Compute the sum.+    k = 0, i = -1; while (++i < n) {+      x = 0, j = -1; while (++j < n) {+        x += matrix[i][j];+      }+      groupSums.push(x);+      subgroupIndex.push(range(n));+      k += x;+    }++    // Sort groups…+    if (sortGroups) groupIndex.sort(function(a, b) {+      return sortGroups(groupSums[a], groupSums[b]);+    });++    // Sort subgroups…+    if (sortSubgroups) subgroupIndex.forEach(function(d, i) {+      d.sort(function(a, b) {+        return sortSubgroups(matrix[i][a], matrix[i][b]);+      });+    });++    // Convert the sum to scaling factor for [0, 2pi].+    // TODO Allow start and end angle to be specified?+    // TODO Allow padding to be specified as percentage?+    k = max$1(0, tau$3 - padAngle * n) / k;+    dx = k ? padAngle : tau$3 / n;++    // Compute the start and end angle for each group and subgroup.+    // Note: Opera has a bug reordering object literal properties!+    x = 0, i = -1; while (++i < n) {+      x0 = x, j = -1; while (++j < n) {+        var di = groupIndex[i],+            dj = subgroupIndex[di][j],+            v = matrix[di][dj],+            a0 = x,+            a1 = x += v * k;+        subgroups[dj * n + di] = {+          index: di,+          subindex: dj,+          startAngle: a0,+          endAngle: a1,+          value: v+        };+      }+      groups[di] = {+        index: di,+        startAngle: x0,+        endAngle: x,+        value: groupSums[di]+      };+      x += dx;+    }++    // Generate chords for each (non-empty) subgroup-subgroup link.+    i = -1; while (++i < n) {+      j = i - 1; while (++j < n) {+        var source = subgroups[j * n + i],+            target = subgroups[i * n + j];+        if (source.value || target.value) {+          chords.push(source.value < target.value+              ? {source: target, target: source}+              : {source: source, target: target});+        }+      }+    }++    return sortChords ? chords.sort(sortChords) : chords;+  }++  chord.padAngle = function(_) {+    return arguments.length ? (padAngle = max$1(0, _), chord) : padAngle;+  };++  chord.sortGroups = function(_) {+    return arguments.length ? (sortGroups = _, chord) : sortGroups;+  };++  chord.sortSubgroups = function(_) {+    return arguments.length ? (sortSubgroups = _, chord) : sortSubgroups;+  };++  chord.sortChords = function(_) {+    return arguments.length ? (_ == null ? sortChords = null : (sortChords = compareValue(_))._ = _, chord) : sortChords && sortChords._;+  };++  return chord;+};++var slice$5 = Array.prototype.slice;++var constant$12 = function(x) {+  return function() {+    return x;+  };+};++function defaultSource(d) {+  return d.source;+}++function defaultTarget(d) {+  return d.target;+}++function defaultRadius$1(d) {+  return d.radius;+}++function defaultStartAngle(d) {+  return d.startAngle;+}++function defaultEndAngle(d) {+  return d.endAngle;+}++var ribbon = function() {+  var source = defaultSource,+      target = defaultTarget,+      radius = defaultRadius$1,+      startAngle = defaultStartAngle,+      endAngle = defaultEndAngle,+      context = null;++  function ribbon() {+    var buffer,+        argv = slice$5.call(arguments),+        s = source.apply(this, argv),+        t = target.apply(this, argv),+        sr = +radius.apply(this, (argv[0] = s, argv)),+        sa0 = startAngle.apply(this, argv) - halfPi$2,+        sa1 = endAngle.apply(this, argv) - halfPi$2,+        sx0 = sr * cos(sa0),+        sy0 = sr * sin(sa0),+        tr = +radius.apply(this, (argv[0] = t, argv)),+        ta0 = startAngle.apply(this, argv) - halfPi$2,+        ta1 = endAngle.apply(this, argv) - halfPi$2;++    if (!context) context = buffer = path();++    context.moveTo(sx0, sy0);+    context.arc(0, 0, sr, sa0, sa1);+    if (sa0 !== ta0 || sa1 !== ta1) { // TODO sr !== tr?+      context.quadraticCurveTo(0, 0, tr * cos(ta0), tr * sin(ta0));+      context.arc(0, 0, tr, ta0, ta1);+    }+    context.quadraticCurveTo(0, 0, sx0, sy0);+    context.closePath();++    if (buffer) return context = null, buffer + "" || null;+  }++  ribbon.radius = function(_) {+    return arguments.length ? (radius = typeof _ === "function" ? _ : constant$12(+_), ribbon) : radius;+  };++  ribbon.startAngle = function(_) {+    return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$12(+_), ribbon) : startAngle;+  };++  ribbon.endAngle = function(_) {+    return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$12(+_), ribbon) : endAngle;+  };++  ribbon.source = function(_) {+    return arguments.length ? (source = _, ribbon) : source;+  };++  ribbon.target = function(_) {+    return arguments.length ? (target = _, ribbon) : target;+  };++  ribbon.context = function(_) {+    return arguments.length ? ((context = _ == null ? null : _), ribbon) : context;+  };++  return ribbon;+};++// Adds floating point numbers with twice the normal precision.+// Reference: J. R. Shewchuk, Adaptive Precision Floating-Point Arithmetic and+// Fast Robust Geometric Predicates, Discrete & Computational Geometry 18(3)+// 305–363 (1997).+// Code adapted from GeographicLib by Charles F. F. Karney,+// http://geographiclib.sourceforge.net/++var adder = function() {+  return new Adder;+};++function Adder() {+  this.reset();+}++Adder.prototype = {+  constructor: Adder,+  reset: function() {+    this.s = // rounded value+    this.t = 0; // exact error+  },+  add: function(y) {+    add$1(temp, y, this.t);+    add$1(this, temp.s, this.s);+    if (this.s) this.t += temp.t;+    else this.s = temp.t;+  },+  valueOf: function() {+    return this.s;+  }+};++var temp = new Adder;++function add$1(adder, a, b) {+  var x = adder.s = a + b,+      bv = x - a,+      av = x - bv;+  adder.t = (a - av) + (b - bv);+}++var epsilon$4 = 1e-6;+var epsilon2$2 = 1e-12;+var pi$4 = Math.PI;+var halfPi$3 = pi$4 / 2;+var quarterPi = pi$4 / 4;+var tau$4 = pi$4 * 2;++var degrees$1 = 180 / pi$4;+var radians = pi$4 / 180;++var abs = Math.abs;+var atan = Math.atan;+var atan2 = Math.atan2;+var cos$1 = Math.cos;+var ceil = Math.ceil;+var exp = Math.exp;++var log$1 = Math.log;+var pow$1 = Math.pow;+var sin$1 = Math.sin;+var sign$1 = Math.sign || function(x) { return x > 0 ? 1 : x < 0 ? -1 : 0; };+var sqrt$1 = Math.sqrt;+var tan = Math.tan;++function acos(x) {+  return x > 1 ? 0 : x < -1 ? pi$4 : Math.acos(x);+}++function asin$1(x) {+  return x > 1 ? halfPi$3 : x < -1 ? -halfPi$3 : Math.asin(x);+}++function haversin(x) {+  return (x = sin$1(x / 2)) * x;+}++function noop$2() {}++function streamGeometry(geometry, stream) {+  if (geometry && streamGeometryType.hasOwnProperty(geometry.type)) {+    streamGeometryType[geometry.type](geometry, stream);+  }+}++var streamObjectType = {+  Feature: function(feature, stream) {+    streamGeometry(feature.geometry, stream);+  },+  FeatureCollection: function(object, stream) {+    var features = object.features, i = -1, n = features.length;+    while (++i < n) streamGeometry(features[i].geometry, stream);+  }+};++var streamGeometryType = {+  Sphere: function(object, stream) {+    stream.sphere();+  },+  Point: function(object, stream) {+    object = object.coordinates;+    stream.point(object[0], object[1], object[2]);+  },+  MultiPoint: function(object, stream) {+    var coordinates = object.coordinates, i = -1, n = coordinates.length;+    while (++i < n) object = coordinates[i], stream.point(object[0], object[1], object[2]);+  },+  LineString: function(object, stream) {+    streamLine(object.coordinates, stream, 0);+  },+  MultiLineString: function(object, stream) {+    var coordinates = object.coordinates, i = -1, n = coordinates.length;+    while (++i < n) streamLine(coordinates[i], stream, 0);+  },+  Polygon: function(object, stream) {+    streamPolygon(object.coordinates, stream);+  },+  MultiPolygon: function(object, stream) {+    var coordinates = object.coordinates, i = -1, n = coordinates.length;+    while (++i < n) streamPolygon(coordinates[i], stream);+  },+  GeometryCollection: function(object, stream) {+    var geometries = object.geometries, i = -1, n = geometries.length;+    while (++i < n) streamGeometry(geometries[i], stream);+  }+};++function streamLine(coordinates, stream, closed) {+  var i = -1, n = coordinates.length - closed, coordinate;+  stream.lineStart();+  while (++i < n) coordinate = coordinates[i], stream.point(coordinate[0], coordinate[1], coordinate[2]);+  stream.lineEnd();+}++function streamPolygon(coordinates, stream) {+  var i = -1, n = coordinates.length;+  stream.polygonStart();+  while (++i < n) streamLine(coordinates[i], stream, 1);+  stream.polygonEnd();+}++var geoStream = function(object, stream) {+  if (object && streamObjectType.hasOwnProperty(object.type)) {+    streamObjectType[object.type](object, stream);+  } else {+    streamGeometry(object, stream);+  }+};++var areaRingSum = adder();++var areaSum = adder();+var lambda00;+var phi00;+var lambda0;+var cosPhi0;+var sinPhi0;++var areaStream = {+  point: noop$2,+  lineStart: noop$2,+  lineEnd: noop$2,+  polygonStart: function() {+    areaRingSum.reset();+    areaStream.lineStart = areaRingStart;+    areaStream.lineEnd = areaRingEnd;+  },+  polygonEnd: function() {+    var areaRing = +areaRingSum;+    areaSum.add(areaRing < 0 ? tau$4 + areaRing : areaRing);+    this.lineStart = this.lineEnd = this.point = noop$2;+  },+  sphere: function() {+    areaSum.add(tau$4);+  }+};++function areaRingStart() {+  areaStream.point = areaPointFirst;+}++function areaRingEnd() {+  areaPoint(lambda00, phi00);+}++function areaPointFirst(lambda, phi) {+  areaStream.point = areaPoint;+  lambda00 = lambda, phi00 = phi;+  lambda *= radians, phi *= radians;+  lambda0 = lambda, cosPhi0 = cos$1(phi = phi / 2 + quarterPi), sinPhi0 = sin$1(phi);+}++function areaPoint(lambda, phi) {+  lambda *= radians, phi *= radians;+  phi = phi / 2 + quarterPi; // half the angular distance from south pole++  // Spherical excess E for a spherical triangle with vertices: south pole,+  // previous point, current point.  Uses a formula derived from Cagnoli’s+  // theorem.  See Todhunter, Spherical Trig. (1871), Sec. 103, Eq. (2).+  var dLambda = lambda - lambda0,+      sdLambda = dLambda >= 0 ? 1 : -1,+      adLambda = sdLambda * dLambda,+      cosPhi = cos$1(phi),+      sinPhi = sin$1(phi),+      k = sinPhi0 * sinPhi,+      u = cosPhi0 * cosPhi + k * cos$1(adLambda),+      v = k * sdLambda * sin$1(adLambda);+  areaRingSum.add(atan2(v, u));++  // Advance the previous points.+  lambda0 = lambda, cosPhi0 = cosPhi, sinPhi0 = sinPhi;+}++var area$2 = function(object) {+  areaSum.reset();+  geoStream(object, areaStream);+  return areaSum * 2;+};++function spherical(cartesian) {+  return [atan2(cartesian[1], cartesian[0]), asin$1(cartesian[2])];+}++function cartesian(spherical) {+  var lambda = spherical[0], phi = spherical[1], cosPhi = cos$1(phi);+  return [cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi)];+}++function cartesianDot(a, b) {+  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];+}++function cartesianCross(a, b) {+  return [a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0]];+}++// TODO return a+function cartesianAddInPlace(a, b) {+  a[0] += b[0], a[1] += b[1], a[2] += b[2];+}++function cartesianScale(vector, k) {+  return [vector[0] * k, vector[1] * k, vector[2] * k];+}++// TODO return d+function cartesianNormalizeInPlace(d) {+  var l = sqrt$1(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]);+  d[0] /= l, d[1] /= l, d[2] /= l;+}++var lambda0$1;+var phi0;+var lambda1;+var phi1;+var lambda2;+var lambda00$1;+var phi00$1;+var p0;+var deltaSum = adder();+var ranges;+var range$1;++var boundsStream = {+  point: boundsPoint,+  lineStart: boundsLineStart,+  lineEnd: boundsLineEnd,+  polygonStart: function() {+    boundsStream.point = boundsRingPoint;+    boundsStream.lineStart = boundsRingStart;+    boundsStream.lineEnd = boundsRingEnd;+    deltaSum.reset();+    areaStream.polygonStart();+  },+  polygonEnd: function() {+    areaStream.polygonEnd();+    boundsStream.point = boundsPoint;+    boundsStream.lineStart = boundsLineStart;+    boundsStream.lineEnd = boundsLineEnd;+    if (areaRingSum < 0) lambda0$1 = -(lambda1 = 180), phi0 = -(phi1 = 90);+    else if (deltaSum > epsilon$4) phi1 = 90;+    else if (deltaSum < -epsilon$4) phi0 = -90;+    range$1[0] = lambda0$1, range$1[1] = lambda1;+  }+};++function boundsPoint(lambda, phi) {+  ranges.push(range$1 = [lambda0$1 = lambda, lambda1 = lambda]);+  if (phi < phi0) phi0 = phi;+  if (phi > phi1) phi1 = phi;+}++function linePoint(lambda, phi) {+  var p = cartesian([lambda * radians, phi * radians]);+  if (p0) {+    var normal = cartesianCross(p0, p),+        equatorial = [normal[1], -normal[0], 0],+        inflection = cartesianCross(equatorial, normal);+    cartesianNormalizeInPlace(inflection);+    inflection = spherical(inflection);+    var delta = lambda - lambda2,+        sign$$1 = delta > 0 ? 1 : -1,+        lambdai = inflection[0] * degrees$1 * sign$$1,+        phii,+        antimeridian = abs(delta) > 180;+    if (antimeridian ^ (sign$$1 * lambda2 < lambdai && lambdai < sign$$1 * lambda)) {+      phii = inflection[1] * degrees$1;+      if (phii > phi1) phi1 = phii;+    } else if (lambdai = (lambdai + 360) % 360 - 180, antimeridian ^ (sign$$1 * lambda2 < lambdai && lambdai < sign$$1 * lambda)) {+      phii = -inflection[1] * degrees$1;+      if (phii < phi0) phi0 = phii;+    } else {+      if (phi < phi0) phi0 = phi;+      if (phi > phi1) phi1 = phi;+    }+    if (antimeridian) {+      if (lambda < lambda2) {+        if (angle(lambda0$1, lambda) > angle(lambda0$1, lambda1)) lambda1 = lambda;+      } else {+        if (angle(lambda, lambda1) > angle(lambda0$1, lambda1)) lambda0$1 = lambda;+      }+    } else {+      if (lambda1 >= lambda0$1) {+        if (lambda < lambda0$1) lambda0$1 = lambda;+        if (lambda > lambda1) lambda1 = lambda;+      } else {+        if (lambda > lambda2) {+          if (angle(lambda0$1, lambda) > angle(lambda0$1, lambda1)) lambda1 = lambda;+        } else {+          if (angle(lambda, lambda1) > angle(lambda0$1, lambda1)) lambda0$1 = lambda;+        }+      }+    }+  } else {+    boundsPoint(lambda, phi);+  }+  p0 = p, lambda2 = lambda;+}++function boundsLineStart() {+  boundsStream.point = linePoint;+}++function boundsLineEnd() {+  range$1[0] = lambda0$1, range$1[1] = lambda1;+  boundsStream.point = boundsPoint;+  p0 = null;+}++function boundsRingPoint(lambda, phi) {+  if (p0) {+    var delta = lambda - lambda2;+    deltaSum.add(abs(delta) > 180 ? delta + (delta > 0 ? 360 : -360) : delta);+  } else {+    lambda00$1 = lambda, phi00$1 = phi;+  }+  areaStream.point(lambda, phi);+  linePoint(lambda, phi);+}++function boundsRingStart() {+  areaStream.lineStart();+}++function boundsRingEnd() {+  boundsRingPoint(lambda00$1, phi00$1);+  areaStream.lineEnd();+  if (abs(deltaSum) > epsilon$4) lambda0$1 = -(lambda1 = 180);+  range$1[0] = lambda0$1, range$1[1] = lambda1;+  p0 = null;+}++// Finds the left-right distance between two longitudes.+// This is almost the same as (lambda1 - lambda0 + 360°) % 360°, except that we want+// the distance between ±180° to be 360°.+function angle(lambda0, lambda1) {+  return (lambda1 -= lambda0) < 0 ? lambda1 + 360 : lambda1;+}++function rangeCompare(a, b) {+  return a[0] - b[0];+}++function rangeContains(range, x) {+  return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x;+}++var bounds = function(feature) {+  var i, n, a, b, merged, deltaMax, delta;++  phi1 = lambda1 = -(lambda0$1 = phi0 = Infinity);+  ranges = [];+  geoStream(feature, boundsStream);++  // First, sort ranges by their minimum longitudes.+  if (n = ranges.length) {+    ranges.sort(rangeCompare);++    // Then, merge any ranges that overlap.+    for (i = 1, a = ranges[0], merged = [a]; i < n; ++i) {+      b = ranges[i];+      if (rangeContains(a, b[0]) || rangeContains(a, b[1])) {+        if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1];+        if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0];+      } else {+        merged.push(a = b);+      }+    }++    // Finally, find the largest gap between the merged ranges.+    // The final bounding box will be the inverse of this gap.+    for (deltaMax = -Infinity, n = merged.length - 1, i = 0, a = merged[n]; i <= n; a = b, ++i) {+      b = merged[i];+      if ((delta = angle(a[1], b[0])) > deltaMax) deltaMax = delta, lambda0$1 = b[0], lambda1 = a[1];+    }+  }++  ranges = range$1 = null;++  return lambda0$1 === Infinity || phi0 === Infinity+      ? [[NaN, NaN], [NaN, NaN]]+      : [[lambda0$1, phi0], [lambda1, phi1]];+};++var W0;+var W1;+var X0;+var Y0;+var Z0;+var X1;+var Y1;+var Z1;+var X2;+var Y2;+var Z2;+var lambda00$2;+var phi00$2;+var x0;+var y0;+var z0; // previous point++var centroidStream = {+  sphere: noop$2,+  point: centroidPoint,+  lineStart: centroidLineStart,+  lineEnd: centroidLineEnd,+  polygonStart: function() {+    centroidStream.lineStart = centroidRingStart;+    centroidStream.lineEnd = centroidRingEnd;+  },+  polygonEnd: function() {+    centroidStream.lineStart = centroidLineStart;+    centroidStream.lineEnd = centroidLineEnd;+  }+};++// Arithmetic mean of Cartesian vectors.+function centroidPoint(lambda, phi) {+  lambda *= radians, phi *= radians;+  var cosPhi = cos$1(phi);+  centroidPointCartesian(cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi));+}++function centroidPointCartesian(x, y, z) {+  ++W0;+  X0 += (x - X0) / W0;+  Y0 += (y - Y0) / W0;+  Z0 += (z - Z0) / W0;+}++function centroidLineStart() {+  centroidStream.point = centroidLinePointFirst;+}++function centroidLinePointFirst(lambda, phi) {+  lambda *= radians, phi *= radians;+  var cosPhi = cos$1(phi);+  x0 = cosPhi * cos$1(lambda);+  y0 = cosPhi * sin$1(lambda);+  z0 = sin$1(phi);+  centroidStream.point = centroidLinePoint;+  centroidPointCartesian(x0, y0, z0);+}++function centroidLinePoint(lambda, phi) {+  lambda *= radians, phi *= radians;+  var cosPhi = cos$1(phi),+      x = cosPhi * cos$1(lambda),+      y = cosPhi * sin$1(lambda),+      z = sin$1(phi),+      w = atan2(sqrt$1((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z);+  W1 += w;+  X1 += w * (x0 + (x0 = x));+  Y1 += w * (y0 + (y0 = y));+  Z1 += w * (z0 + (z0 = z));+  centroidPointCartesian(x0, y0, z0);+}++function centroidLineEnd() {+  centroidStream.point = centroidPoint;+}++// See J. E. Brock, The Inertia Tensor for a Spherical Triangle,+// J. Applied Mechanics 42, 239 (1975).+function centroidRingStart() {+  centroidStream.point = centroidRingPointFirst;+}++function centroidRingEnd() {+  centroidRingPoint(lambda00$2, phi00$2);+  centroidStream.point = centroidPoint;+}++function centroidRingPointFirst(lambda, phi) {+  lambda00$2 = lambda, phi00$2 = phi;+  lambda *= radians, phi *= radians;+  centroidStream.point = centroidRingPoint;+  var cosPhi = cos$1(phi);+  x0 = cosPhi * cos$1(lambda);+  y0 = cosPhi * sin$1(lambda);+  z0 = sin$1(phi);+  centroidPointCartesian(x0, y0, z0);+}++function centroidRingPoint(lambda, phi) {+  lambda *= radians, phi *= radians;+  var cosPhi = cos$1(phi),+      x = cosPhi * cos$1(lambda),+      y = cosPhi * sin$1(lambda),+      z = sin$1(phi),+      cx = y0 * z - z0 * y,+      cy = z0 * x - x0 * z,+      cz = x0 * y - y0 * x,+      m = sqrt$1(cx * cx + cy * cy + cz * cz),+      u = x0 * x + y0 * y + z0 * z,+      v = m && -acos(u) / m, // area weight+      w = atan2(m, u); // line weight+  X2 += v * cx;+  Y2 += v * cy;+  Z2 += v * cz;+  W1 += w;+  X1 += w * (x0 + (x0 = x));+  Y1 += w * (y0 + (y0 = y));+  Z1 += w * (z0 + (z0 = z));+  centroidPointCartesian(x0, y0, z0);+}++var centroid$1 = function(object) {+  W0 = W1 =+  X0 = Y0 = Z0 =+  X1 = Y1 = Z1 =+  X2 = Y2 = Z2 = 0;+  geoStream(object, centroidStream);++  var x = X2,+      y = Y2,+      z = Z2,+      m = x * x + y * y + z * z;++  // If the area-weighted ccentroid is undefined, fall back to length-weighted ccentroid.+  if (m < epsilon2$2) {+    x = X1, y = Y1, z = Z1;+    // If the feature has zero length, fall back to arithmetic mean of point vectors.+    if (W1 < epsilon$4) x = X0, y = Y0, z = Z0;+    m = x * x + y * y + z * z;+    // If the feature still has an undefined ccentroid, then return.+    if (m < epsilon2$2) return [NaN, NaN];+  }++  return [atan2(y, x) * degrees$1, asin$1(z / sqrt$1(m)) * degrees$1];+};++var constant$13 = function(x) {+  return function() {+    return x;+  };+};++var compose = function(a, b) {++  function compose(x, y) {+    return x = a(x, y), b(x[0], x[1]);+  }++  if (a.invert && b.invert) compose.invert = function(x, y) {+    return x = b.invert(x, y), x && a.invert(x[0], x[1]);+  };++  return compose;+};++function rotationIdentity(lambda, phi) {+  return [lambda > pi$4 ? lambda - tau$4 : lambda < -pi$4 ? lambda + tau$4 : lambda, phi];+}++rotationIdentity.invert = rotationIdentity;++function rotateRadians(deltaLambda, deltaPhi, deltaGamma) {+  return (deltaLambda %= tau$4) ? (deltaPhi || deltaGamma ? compose(rotationLambda(deltaLambda), rotationPhiGamma(deltaPhi, deltaGamma))+    : rotationLambda(deltaLambda))+    : (deltaPhi || deltaGamma ? rotationPhiGamma(deltaPhi, deltaGamma)+    : rotationIdentity);+}++function forwardRotationLambda(deltaLambda) {+  return function(lambda, phi) {+    return lambda += deltaLambda, [lambda > pi$4 ? lambda - tau$4 : lambda < -pi$4 ? lambda + tau$4 : lambda, phi];+  };+}++function rotationLambda(deltaLambda) {+  var rotation = forwardRotationLambda(deltaLambda);+  rotation.invert = forwardRotationLambda(-deltaLambda);+  return rotation;+}++function rotationPhiGamma(deltaPhi, deltaGamma) {+  var cosDeltaPhi = cos$1(deltaPhi),+      sinDeltaPhi = sin$1(deltaPhi),+      cosDeltaGamma = cos$1(deltaGamma),+      sinDeltaGamma = sin$1(deltaGamma);++  function rotation(lambda, phi) {+    var cosPhi = cos$1(phi),+        x = cos$1(lambda) * cosPhi,+        y = sin$1(lambda) * cosPhi,+        z = sin$1(phi),+        k = z * cosDeltaPhi + x * sinDeltaPhi;+    return [+      atan2(y * cosDeltaGamma - k * sinDeltaGamma, x * cosDeltaPhi - z * sinDeltaPhi),+      asin$1(k * cosDeltaGamma + y * sinDeltaGamma)+    ];+  }++  rotation.invert = function(lambda, phi) {+    var cosPhi = cos$1(phi),+        x = cos$1(lambda) * cosPhi,+        y = sin$1(lambda) * cosPhi,+        z = sin$1(phi),+        k = z * cosDeltaGamma - y * sinDeltaGamma;+    return [+      atan2(y * cosDeltaGamma + z * sinDeltaGamma, x * cosDeltaPhi + k * sinDeltaPhi),+      asin$1(k * cosDeltaPhi - x * sinDeltaPhi)+    ];+  };++  return rotation;+}++var rotation = function(rotate) {+  rotate = rotateRadians(rotate[0] * radians, rotate[1] * radians, rotate.length > 2 ? rotate[2] * radians : 0);++  function forward(coordinates) {+    coordinates = rotate(coordinates[0] * radians, coordinates[1] * radians);+    return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates;+  }++  forward.invert = function(coordinates) {+    coordinates = rotate.invert(coordinates[0] * radians, coordinates[1] * radians);+    return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates;+  };++  return forward;+};++// Generates a circle centered at [0°, 0°], with a given radius and precision.+function circleStream(stream, radius, delta, direction, t0, t1) {+  if (!delta) return;+  var cosRadius = cos$1(radius),+      sinRadius = sin$1(radius),+      step = direction * delta;+  if (t0 == null) {+    t0 = radius + direction * tau$4;+    t1 = radius - step / 2;+  } else {+    t0 = circleRadius(cosRadius, t0);+    t1 = circleRadius(cosRadius, t1);+    if (direction > 0 ? t0 < t1 : t0 > t1) t0 += direction * tau$4;+  }+  for (var point, t = t0; direction > 0 ? t > t1 : t < t1; t -= step) {+    point = spherical([cosRadius, -sinRadius * cos$1(t), -sinRadius * sin$1(t)]);+    stream.point(point[0], point[1]);+  }+}++// Returns the signed angle of a cartesian point relative to [cosRadius, 0, 0].+function circleRadius(cosRadius, point) {+  point = cartesian(point), point[0] -= cosRadius;+  cartesianNormalizeInPlace(point);+  var radius = acos(-point[1]);+  return ((-point[2] < 0 ? -radius : radius) + tau$4 - epsilon$4) % tau$4;+}++var circle$1 = function() {+  var center = constant$13([0, 0]),+      radius = constant$13(90),+      precision = constant$13(6),+      ring,+      rotate,+      stream = {point: point};++  function point(x, y) {+    ring.push(x = rotate(x, y));+    x[0] *= degrees$1, x[1] *= degrees$1;+  }++  function circle() {+    var c = center.apply(this, arguments),+        r = radius.apply(this, arguments) * radians,+        p = precision.apply(this, arguments) * radians;+    ring = [];+    rotate = rotateRadians(-c[0] * radians, -c[1] * radians, 0).invert;+    circleStream(stream, r, p, 1);+    c = {type: "Polygon", coordinates: [ring]};+    ring = rotate = null;+    return c;+  }++  circle.center = function(_) {+    return arguments.length ? (center = typeof _ === "function" ? _ : constant$13([+_[0], +_[1]]), circle) : center;+  };++  circle.radius = function(_) {+    return arguments.length ? (radius = typeof _ === "function" ? _ : constant$13(+_), circle) : radius;+  };++  circle.precision = function(_) {+    return arguments.length ? (precision = typeof _ === "function" ? _ : constant$13(+_), circle) : precision;+  };++  return circle;+};++var clipBuffer = function() {+  var lines = [],+      line;+  return {+    point: function(x, y) {+      line.push([x, y]);+    },+    lineStart: function() {+      lines.push(line = []);+    },+    lineEnd: noop$2,+    rejoin: function() {+      if (lines.length > 1) lines.push(lines.pop().concat(lines.shift()));+    },+    result: function() {+      var result = lines;+      lines = [];+      line = null;+      return result;+    }+  };+};++var clipLine = function(a, b, x0, y0, x1, y1) {+  var ax = a[0],+      ay = a[1],+      bx = b[0],+      by = b[1],+      t0 = 0,+      t1 = 1,+      dx = bx - ax,+      dy = by - ay,+      r;++  r = x0 - ax;+  if (!dx && r > 0) return;+  r /= dx;+  if (dx < 0) {+    if (r < t0) return;+    if (r < t1) t1 = r;+  } else if (dx > 0) {+    if (r > t1) return;+    if (r > t0) t0 = r;+  }++  r = x1 - ax;+  if (!dx && r < 0) return;+  r /= dx;+  if (dx < 0) {+    if (r > t1) return;+    if (r > t0) t0 = r;+  } else if (dx > 0) {+    if (r < t0) return;+    if (r < t1) t1 = r;+  }++  r = y0 - ay;+  if (!dy && r > 0) return;+  r /= dy;+  if (dy < 0) {+    if (r < t0) return;+    if (r < t1) t1 = r;+  } else if (dy > 0) {+    if (r > t1) return;+    if (r > t0) t0 = r;+  }++  r = y1 - ay;+  if (!dy && r < 0) return;+  r /= dy;+  if (dy < 0) {+    if (r > t1) return;+    if (r > t0) t0 = r;+  } else if (dy > 0) {+    if (r < t0) return;+    if (r < t1) t1 = r;+  }++  if (t0 > 0) a[0] = ax + t0 * dx, a[1] = ay + t0 * dy;+  if (t1 < 1) b[0] = ax + t1 * dx, b[1] = ay + t1 * dy;+  return true;+};++var pointEqual = function(a, b) {+  return abs(a[0] - b[0]) < epsilon$4 && abs(a[1] - b[1]) < epsilon$4;+};++function Intersection(point, points, other, entry) {+  this.x = point;+  this.z = points;+  this.o = other; // another intersection+  this.e = entry; // is an entry?+  this.v = false; // visited+  this.n = this.p = null; // next & previous+}++// A generalized polygon clipping algorithm: given a polygon that has been cut+// into its visible line segments, and rejoins the segments by interpolating+// along the clip edge.+var clipPolygon = function(segments, compareIntersection, startInside, interpolate, stream) {+  var subject = [],+      clip = [],+      i,+      n;++  segments.forEach(function(segment) {+    if ((n = segment.length - 1) <= 0) return;+    var n, p0 = segment[0], p1 = segment[n], x;++    // If the first and last points of a segment are coincident, then treat as a+    // closed ring. TODO if all rings are closed, then the winding order of the+    // exterior ring should be checked.+    if (pointEqual(p0, p1)) {+      stream.lineStart();+      for (i = 0; i < n; ++i) stream.point((p0 = segment[i])[0], p0[1]);+      stream.lineEnd();+      return;+    }++    subject.push(x = new Intersection(p0, segment, null, true));+    clip.push(x.o = new Intersection(p0, null, x, false));+    subject.push(x = new Intersection(p1, segment, null, false));+    clip.push(x.o = new Intersection(p1, null, x, true));+  });++  if (!subject.length) return;++  clip.sort(compareIntersection);+  link$1(subject);+  link$1(clip);++  for (i = 0, n = clip.length; i < n; ++i) {+    clip[i].e = startInside = !startInside;+  }++  var start = subject[0],+      points,+      point;++  while (1) {+    // Find first unvisited intersection.+    var current = start,+        isSubject = true;+    while (current.v) if ((current = current.n) === start) return;+    points = current.z;+    stream.lineStart();+    do {+      current.v = current.o.v = true;+      if (current.e) {+        if (isSubject) {+          for (i = 0, n = points.length; i < n; ++i) stream.point((point = points[i])[0], point[1]);+        } else {+          interpolate(current.x, current.n.x, 1, stream);+        }+        current = current.n;+      } else {+        if (isSubject) {+          points = current.p.z;+          for (i = points.length - 1; i >= 0; --i) stream.point((point = points[i])[0], point[1]);+        } else {+          interpolate(current.x, current.p.x, -1, stream);+        }+        current = current.p;+      }+      current = current.o;+      points = current.z;+      isSubject = !isSubject;+    } while (!current.v);+    stream.lineEnd();+  }+};++function link$1(array) {+  if (!(n = array.length)) return;+  var n,+      i = 0,+      a = array[0],+      b;+  while (++i < n) {+    a.n = b = array[i];+    b.p = a;+    a = b;+  }+  a.n = b = array[0];+  b.p = a;+}++var clipMax = 1e9;+var clipMin = -clipMax;++// TODO Use d3-polygon’s polygonContains here for the ring check?+// TODO Eliminate duplicate buffering in clipBuffer and polygon.push?++function clipExtent(x0, y0, x1, y1) {++  function visible(x, y) {+    return x0 <= x && x <= x1 && y0 <= y && y <= y1;+  }++  function interpolate(from, to, direction, stream) {+    var a = 0, a1 = 0;+    if (from == null+        || (a = corner(from, direction)) !== (a1 = corner(to, direction))+        || comparePoint(from, to) < 0 ^ direction > 0) {+      do stream.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0);+      while ((a = (a + direction + 4) % 4) !== a1);+    } else {+      stream.point(to[0], to[1]);+    }+  }++  function corner(p, direction) {+    return abs(p[0] - x0) < epsilon$4 ? direction > 0 ? 0 : 3+        : abs(p[0] - x1) < epsilon$4 ? direction > 0 ? 2 : 1+        : abs(p[1] - y0) < epsilon$4 ? direction > 0 ? 1 : 0+        : direction > 0 ? 3 : 2; // abs(p[1] - y1) < epsilon+  }++  function compareIntersection(a, b) {+    return comparePoint(a.x, b.x);+  }++  function comparePoint(a, b) {+    var ca = corner(a, 1),+        cb = corner(b, 1);+    return ca !== cb ? ca - cb+        : ca === 0 ? b[1] - a[1]+        : ca === 1 ? a[0] - b[0]+        : ca === 2 ? a[1] - b[1]+        : b[0] - a[0];+  }++  return function(stream) {+    var activeStream = stream,+        bufferStream = clipBuffer(),+        segments,+        polygon,+        ring,+        x__, y__, v__, // first point+        x_, y_, v_, // previous point+        first,+        clean;++    var clipStream = {+      point: point,+      lineStart: lineStart,+      lineEnd: lineEnd,+      polygonStart: polygonStart,+      polygonEnd: polygonEnd+    };++    function point(x, y) {+      if (visible(x, y)) activeStream.point(x, y);+    }++    function polygonInside() {+      var winding = 0;++      for (var i = 0, n = polygon.length; i < n; ++i) {+        for (var ring = polygon[i], j = 1, m = ring.length, point = ring[0], a0, a1, b0 = point[0], b1 = point[1]; j < m; ++j) {+          a0 = b0, a1 = b1, point = ring[j], b0 = point[0], b1 = point[1];+          if (a1 <= y1) { if (b1 > y1 && (b0 - a0) * (y1 - a1) > (b1 - a1) * (x0 - a0)) ++winding; }+          else { if (b1 <= y1 && (b0 - a0) * (y1 - a1) < (b1 - a1) * (x0 - a0)) --winding; }+        }+      }++      return winding;+    }++    // Buffer geometry within a polygon and then clip it en masse.+    function polygonStart() {+      activeStream = bufferStream, segments = [], polygon = [], clean = true;+    }++    function polygonEnd() {+      var startInside = polygonInside(),+          cleanInside = clean && startInside,+          visible = (segments = merge(segments)).length;+      if (cleanInside || visible) {+        stream.polygonStart();+        if (cleanInside) {+          stream.lineStart();+          interpolate(null, null, 1, stream);+          stream.lineEnd();+        }+        if (visible) {+          clipPolygon(segments, compareIntersection, startInside, interpolate, stream);+        }+        stream.polygonEnd();+      }+      activeStream = stream, segments = polygon = ring = null;+    }++    function lineStart() {+      clipStream.point = linePoint;+      if (polygon) polygon.push(ring = []);+      first = true;+      v_ = false;+      x_ = y_ = NaN;+    }++    // TODO rather than special-case polygons, simply handle them separately.+    // Ideally, coincident intersection points should be jittered to avoid+    // clipping issues.+    function lineEnd() {+      if (segments) {+        linePoint(x__, y__);+        if (v__ && v_) bufferStream.rejoin();+        segments.push(bufferStream.result());+      }+      clipStream.point = point;+      if (v_) activeStream.lineEnd();+    }++    function linePoint(x, y) {+      var v = visible(x, y);+      if (polygon) ring.push([x, y]);+      if (first) {+        x__ = x, y__ = y, v__ = v;+        first = false;+        if (v) {+          activeStream.lineStart();+          activeStream.point(x, y);+        }+      } else {+        if (v && v_) activeStream.point(x, y);+        else {+          var a = [x_ = Math.max(clipMin, Math.min(clipMax, x_)), y_ = Math.max(clipMin, Math.min(clipMax, y_))],+              b = [x = Math.max(clipMin, Math.min(clipMax, x)), y = Math.max(clipMin, Math.min(clipMax, y))];+          if (clipLine(a, b, x0, y0, x1, y1)) {+            if (!v_) {+              activeStream.lineStart();+              activeStream.point(a[0], a[1]);+            }+            activeStream.point(b[0], b[1]);+            if (!v) activeStream.lineEnd();+            clean = false;+          } else if (v) {+            activeStream.lineStart();+            activeStream.point(x, y);+            clean = false;+          }+        }+      }+      x_ = x, y_ = y, v_ = v;+    }++    return clipStream;+  };+}++var extent$1 = function() {+  var x0 = 0,+      y0 = 0,+      x1 = 960,+      y1 = 500,+      cache,+      cacheStream,+      clip;++  return clip = {+    stream: function(stream) {+      return cache && cacheStream === stream ? cache : cache = clipExtent(x0, y0, x1, y1)(cacheStream = stream);+    },+    extent: function(_) {+      return arguments.length ? (x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1], cache = cacheStream = null, clip) : [[x0, y0], [x1, y1]];+    }+  };+};++var lengthSum = adder();+var lambda0$2;+var sinPhi0$1;+var cosPhi0$1;++var lengthStream = {+  sphere: noop$2,+  point: noop$2,+  lineStart: lengthLineStart,+  lineEnd: noop$2,+  polygonStart: noop$2,+  polygonEnd: noop$2+};++function lengthLineStart() {+  lengthStream.point = lengthPointFirst;+  lengthStream.lineEnd = lengthLineEnd;+}++function lengthLineEnd() {+  lengthStream.point = lengthStream.lineEnd = noop$2;+}++function lengthPointFirst(lambda, phi) {+  lambda *= radians, phi *= radians;+  lambda0$2 = lambda, sinPhi0$1 = sin$1(phi), cosPhi0$1 = cos$1(phi);+  lengthStream.point = lengthPoint;+}++function lengthPoint(lambda, phi) {+  lambda *= radians, phi *= radians;+  var sinPhi = sin$1(phi),+      cosPhi = cos$1(phi),+      delta = abs(lambda - lambda0$2),+      cosDelta = cos$1(delta),+      sinDelta = sin$1(delta),+      x = cosPhi * sinDelta,+      y = cosPhi0$1 * sinPhi - sinPhi0$1 * cosPhi * cosDelta,+      z = sinPhi0$1 * sinPhi + cosPhi0$1 * cosPhi * cosDelta;+  lengthSum.add(atan2(sqrt$1(x * x + y * y), z));+  lambda0$2 = lambda, sinPhi0$1 = sinPhi, cosPhi0$1 = cosPhi;+}++var length$2 = function(object) {+  lengthSum.reset();+  geoStream(object, lengthStream);+  return +lengthSum;+};++var coordinates = [null, null];+var object$1 = {type: "LineString", coordinates: coordinates};++var distance = function(a, b) {+  coordinates[0] = a;+  coordinates[1] = b;+  return length$2(object$1);+};++function graticuleX(y0, y1, dy) {+  var y = range(y0, y1 - epsilon$4, dy).concat(y1);+  return function(x) { return y.map(function(y) { return [x, y]; }); };+}++function graticuleY(x0, x1, dx) {+  var x = range(x0, x1 - epsilon$4, dx).concat(x1);+  return function(y) { return x.map(function(x) { return [x, y]; }); };+}++function graticule() {+  var x1, x0, X1, X0,+      y1, y0, Y1, Y0,+      dx = 10, dy = dx, DX = 90, DY = 360,+      x, y, X, Y,+      precision = 2.5;++  function graticule() {+    return {type: "MultiLineString", coordinates: lines()};+  }++  function lines() {+    return range(ceil(X0 / DX) * DX, X1, DX).map(X)+        .concat(range(ceil(Y0 / DY) * DY, Y1, DY).map(Y))+        .concat(range(ceil(x0 / dx) * dx, x1, dx).filter(function(x) { return abs(x % DX) > epsilon$4; }).map(x))+        .concat(range(ceil(y0 / dy) * dy, y1, dy).filter(function(y) { return abs(y % DY) > epsilon$4; }).map(y));+  }++  graticule.lines = function() {+    return lines().map(function(coordinates) { return {type: "LineString", coordinates: coordinates}; });+  };++  graticule.outline = function() {+    return {+      type: "Polygon",+      coordinates: [+        X(X0).concat(+        Y(Y1).slice(1),+        X(X1).reverse().slice(1),+        Y(Y0).reverse().slice(1))+      ]+    };+  };++  graticule.extent = function(_) {+    if (!arguments.length) return graticule.extentMinor();+    return graticule.extentMajor(_).extentMinor(_);+  };++  graticule.extentMajor = function(_) {+    if (!arguments.length) return [[X0, Y0], [X1, Y1]];+    X0 = +_[0][0], X1 = +_[1][0];+    Y0 = +_[0][1], Y1 = +_[1][1];+    if (X0 > X1) _ = X0, X0 = X1, X1 = _;+    if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _;+    return graticule.precision(precision);+  };++  graticule.extentMinor = function(_) {+    if (!arguments.length) return [[x0, y0], [x1, y1]];+    x0 = +_[0][0], x1 = +_[1][0];+    y0 = +_[0][1], y1 = +_[1][1];+    if (x0 > x1) _ = x0, x0 = x1, x1 = _;+    if (y0 > y1) _ = y0, y0 = y1, y1 = _;+    return graticule.precision(precision);+  };++  graticule.step = function(_) {+    if (!arguments.length) return graticule.stepMinor();+    return graticule.stepMajor(_).stepMinor(_);+  };++  graticule.stepMajor = function(_) {+    if (!arguments.length) return [DX, DY];+    DX = +_[0], DY = +_[1];+    return graticule;+  };++  graticule.stepMinor = function(_) {+    if (!arguments.length) return [dx, dy];+    dx = +_[0], dy = +_[1];+    return graticule;+  };++  graticule.precision = function(_) {+    if (!arguments.length) return precision;+    precision = +_;+    x = graticuleX(y0, y1, 90);+    y = graticuleY(x0, x1, precision);+    X = graticuleX(Y0, Y1, 90);+    Y = graticuleY(X0, X1, precision);+    return graticule;+  };++  return graticule+      .extentMajor([[-180, -90 + epsilon$4], [180, 90 - epsilon$4]])+      .extentMinor([[-180, -80 - epsilon$4], [180, 80 + epsilon$4]]);+}++function graticule10() {+  return graticule()();+}++var interpolate$2 = function(a, b) {+  var x0 = a[0] * radians,+      y0 = a[1] * radians,+      x1 = b[0] * radians,+      y1 = b[1] * radians,+      cy0 = cos$1(y0),+      sy0 = sin$1(y0),+      cy1 = cos$1(y1),+      sy1 = sin$1(y1),+      kx0 = cy0 * cos$1(x0),+      ky0 = cy0 * sin$1(x0),+      kx1 = cy1 * cos$1(x1),+      ky1 = cy1 * sin$1(x1),+      d = 2 * asin$1(sqrt$1(haversin(y1 - y0) + cy0 * cy1 * haversin(x1 - x0))),+      k = sin$1(d);++  var interpolate = d ? function(t) {+    var B = sin$1(t *= d) / k,+        A = sin$1(d - t) / k,+        x = A * kx0 + B * kx1,+        y = A * ky0 + B * ky1,+        z = A * sy0 + B * sy1;+    return [+      atan2(y, x) * degrees$1,+      atan2(z, sqrt$1(x * x + y * y)) * degrees$1+    ];+  } : function() {+    return [x0 * degrees$1, y0 * degrees$1];+  };++  interpolate.distance = d;++  return interpolate;+};++var identity$7 = function(x) {+  return x;+};++var areaSum$1 = adder();+var areaRingSum$1 = adder();+var x00;+var y00;+var x0$1;+var y0$1;++var areaStream$1 = {+  point: noop$2,+  lineStart: noop$2,+  lineEnd: noop$2,+  polygonStart: function() {+    areaStream$1.lineStart = areaRingStart$1;+    areaStream$1.lineEnd = areaRingEnd$1;+  },+  polygonEnd: function() {+    areaStream$1.lineStart = areaStream$1.lineEnd = areaStream$1.point = noop$2;+    areaSum$1.add(abs(areaRingSum$1));+    areaRingSum$1.reset();+  },+  result: function() {+    var area = areaSum$1 / 2;+    areaSum$1.reset();+    return area;+  }+};++function areaRingStart$1() {+  areaStream$1.point = areaPointFirst$1;+}++function areaPointFirst$1(x, y) {+  areaStream$1.point = areaPoint$1;+  x00 = x0$1 = x, y00 = y0$1 = y;+}++function areaPoint$1(x, y) {+  areaRingSum$1.add(y0$1 * x - x0$1 * y);+  x0$1 = x, y0$1 = y;+}++function areaRingEnd$1() {+  areaPoint$1(x00, y00);+}++var x0$2 = Infinity;+var y0$2 = x0$2;+var x1 = -x0$2;+var y1 = x1;++var boundsStream$1 = {+  point: boundsPoint$1,+  lineStart: noop$2,+  lineEnd: noop$2,+  polygonStart: noop$2,+  polygonEnd: noop$2,+  result: function() {+    var bounds = [[x0$2, y0$2], [x1, y1]];+    x1 = y1 = -(y0$2 = x0$2 = Infinity);+    return bounds;+  }+};++function boundsPoint$1(x, y) {+  if (x < x0$2) x0$2 = x;+  if (x > x1) x1 = x;+  if (y < y0$2) y0$2 = y;+  if (y > y1) y1 = y;+}++// TODO Enforce positive area for exterior, negative area for interior?++var X0$1 = 0;+var Y0$1 = 0;+var Z0$1 = 0;+var X1$1 = 0;+var Y1$1 = 0;+var Z1$1 = 0;+var X2$1 = 0;+var Y2$1 = 0;+var Z2$1 = 0;+var x00$1;+var y00$1;+var x0$3;+var y0$3;++var centroidStream$1 = {+  point: centroidPoint$1,+  lineStart: centroidLineStart$1,+  lineEnd: centroidLineEnd$1,+  polygonStart: function() {+    centroidStream$1.lineStart = centroidRingStart$1;+    centroidStream$1.lineEnd = centroidRingEnd$1;+  },+  polygonEnd: function() {+    centroidStream$1.point = centroidPoint$1;+    centroidStream$1.lineStart = centroidLineStart$1;+    centroidStream$1.lineEnd = centroidLineEnd$1;+  },+  result: function() {+    var centroid = Z2$1 ? [X2$1 / Z2$1, Y2$1 / Z2$1]+        : Z1$1 ? [X1$1 / Z1$1, Y1$1 / Z1$1]+        : Z0$1 ? [X0$1 / Z0$1, Y0$1 / Z0$1]+        : [NaN, NaN];+    X0$1 = Y0$1 = Z0$1 =+    X1$1 = Y1$1 = Z1$1 =+    X2$1 = Y2$1 = Z2$1 = 0;+    return centroid;+  }+};++function centroidPoint$1(x, y) {+  X0$1 += x;+  Y0$1 += y;+  ++Z0$1;+}++function centroidLineStart$1() {+  centroidStream$1.point = centroidPointFirstLine;+}++function centroidPointFirstLine(x, y) {+  centroidStream$1.point = centroidPointLine;+  centroidPoint$1(x0$3 = x, y0$3 = y);+}++function centroidPointLine(x, y) {+  var dx = x - x0$3, dy = y - y0$3, z = sqrt$1(dx * dx + dy * dy);+  X1$1 += z * (x0$3 + x) / 2;+  Y1$1 += z * (y0$3 + y) / 2;+  Z1$1 += z;+  centroidPoint$1(x0$3 = x, y0$3 = y);+}++function centroidLineEnd$1() {+  centroidStream$1.point = centroidPoint$1;+}++function centroidRingStart$1() {+  centroidStream$1.point = centroidPointFirstRing;+}++function centroidRingEnd$1() {+  centroidPointRing(x00$1, y00$1);+}++function centroidPointFirstRing(x, y) {+  centroidStream$1.point = centroidPointRing;+  centroidPoint$1(x00$1 = x0$3 = x, y00$1 = y0$3 = y);+}++function centroidPointRing(x, y) {+  var dx = x - x0$3,+      dy = y - y0$3,+      z = sqrt$1(dx * dx + dy * dy);++  X1$1 += z * (x0$3 + x) / 2;+  Y1$1 += z * (y0$3 + y) / 2;+  Z1$1 += z;++  z = y0$3 * x - x0$3 * y;+  X2$1 += z * (x0$3 + x);+  Y2$1 += z * (y0$3 + y);+  Z2$1 += z * 3;+  centroidPoint$1(x0$3 = x, y0$3 = y);+}++function PathContext(context) {+  this._context = context;+}++PathContext.prototype = {+  _radius: 4.5,+  pointRadius: function(_) {+    return this._radius = _, this;+  },+  polygonStart: function() {+    this._line = 0;+  },+  polygonEnd: function() {+    this._line = NaN;+  },+  lineStart: function() {+    this._point = 0;+  },+  lineEnd: function() {+    if (this._line === 0) this._context.closePath();+    this._point = NaN;+  },+  point: function(x, y) {+    switch (this._point) {+      case 0: {+        this._context.moveTo(x, y);+        this._point = 1;+        break;+      }+      case 1: {+        this._context.lineTo(x, y);+        break;+      }+      default: {+        this._context.moveTo(x + this._radius, y);+        this._context.arc(x, y, this._radius, 0, tau$4);+        break;+      }+    }+  },+  result: noop$2+};++function PathString() {+  this._string = [];+}++PathString.prototype = {+  _circle: circle$2(4.5),+  pointRadius: function(_) {+    return this._circle = circle$2(_), this;+  },+  polygonStart: function() {+    this._line = 0;+  },+  polygonEnd: function() {+    this._line = NaN;+  },+  lineStart: function() {+    this._point = 0;+  },+  lineEnd: function() {+    if (this._line === 0) this._string.push("Z");+    this._point = NaN;+  },+  point: function(x, y) {+    switch (this._point) {+      case 0: {+        this._string.push("M", x, ",", y);+        this._point = 1;+        break;+      }+      case 1: {+        this._string.push("L", x, ",", y);+        break;+      }+      default: {+        this._string.push("M", x, ",", y, this._circle);+        break;+      }+    }+  },+  result: function() {+    if (this._string.length) {+      var result = this._string.join("");+      this._string = [];+      return result;+    }+  }+};++function circle$2(radius) {+  return "m0," + radius+      + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius+      + "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius+      + "z";+}++var index$3 = function(projection, context) {+  var pointRadius = 4.5,+      projectionStream,+      contextStream;++  function path(object) {+    if (object) {+      if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments));+      geoStream(object, projectionStream(contextStream));+    }+    return contextStream.result();+  }++  path.area = function(object) {+    geoStream(object, projectionStream(areaStream$1));+    return areaStream$1.result();+  };++  path.bounds = function(object) {+    geoStream(object, projectionStream(boundsStream$1));+    return boundsStream$1.result();+  };++  path.centroid = function(object) {+    geoStream(object, projectionStream(centroidStream$1));+    return centroidStream$1.result();+  };++  path.projection = function(_) {+    return arguments.length ? (projectionStream = _ == null ? (projection = null, identity$7) : (projection = _).stream, path) : projection;+  };++  path.context = function(_) {+    if (!arguments.length) return context;+    contextStream = _ == null ? (context = null, new PathString) : new PathContext(context = _);+    if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius);+    return path;+  };++  path.pointRadius = function(_) {+    if (!arguments.length) return pointRadius;+    pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_);+    return path;+  };++  return path.projection(projection).context(context);+};++var sum$2 = adder();++var polygonContains = function(polygon, point) {+  var lambda = point[0],+      phi = point[1],+      normal = [sin$1(lambda), -cos$1(lambda), 0],+      angle = 0,+      winding = 0;++  sum$2.reset();++  for (var i = 0, n = polygon.length; i < n; ++i) {+    if (!(m = (ring = polygon[i]).length)) continue;+    var ring,+        m,+        point0 = ring[m - 1],+        lambda0 = point0[0],+        phi0 = point0[1] / 2 + quarterPi,+        sinPhi0 = sin$1(phi0),+        cosPhi0 = cos$1(phi0);++    for (var j = 0; j < m; ++j, lambda0 = lambda1, sinPhi0 = sinPhi1, cosPhi0 = cosPhi1, point0 = point1) {+      var point1 = ring[j],+          lambda1 = point1[0],+          phi1 = point1[1] / 2 + quarterPi,+          sinPhi1 = sin$1(phi1),+          cosPhi1 = cos$1(phi1),+          delta = lambda1 - lambda0,+          sign$$1 = delta >= 0 ? 1 : -1,+          absDelta = sign$$1 * delta,+          antimeridian = absDelta > pi$4,+          k = sinPhi0 * sinPhi1;++      sum$2.add(atan2(k * sign$$1 * sin$1(absDelta), cosPhi0 * cosPhi1 + k * cos$1(absDelta)));+      angle += antimeridian ? delta + sign$$1 * tau$4 : delta;++      // Are the longitudes either side of the point’s meridian (lambda),+      // and are the latitudes smaller than the parallel (phi)?+      if (antimeridian ^ lambda0 >= lambda ^ lambda1 >= lambda) {+        var arc = cartesianCross(cartesian(point0), cartesian(point1));+        cartesianNormalizeInPlace(arc);+        var intersection = cartesianCross(normal, arc);+        cartesianNormalizeInPlace(intersection);+        var phiArc = (antimeridian ^ delta >= 0 ? -1 : 1) * asin$1(intersection[2]);+        if (phi > phiArc || phi === phiArc && (arc[0] || arc[1])) {+          winding += antimeridian ^ delta >= 0 ? 1 : -1;+        }+      }+    }+  }++  // First, determine whether the South pole is inside or outside:+  //+  // It is inside if:+  // * the polygon winds around it in a clockwise direction.+  // * the polygon does not (cumulatively) wind around it, but has a negative+  //   (counter-clockwise) area.+  //+  // Second, count the (signed) number of times a segment crosses a lambda+  // from the point to the South pole.  If it is zero, then the point is the+  // same side as the South pole.++  return (angle < -epsilon$4 || angle < epsilon$4 && sum$2 < -epsilon$4) ^ (winding & 1);+};++var clip = function(pointVisible, clipLine, interpolate, start) {+  return function(rotate, sink) {+    var line = clipLine(sink),+        rotatedStart = rotate.invert(start[0], start[1]),+        ringBuffer = clipBuffer(),+        ringSink = clipLine(ringBuffer),+        polygonStarted = false,+        polygon,+        segments,+        ring;++    var clip = {+      point: point,+      lineStart: lineStart,+      lineEnd: lineEnd,+      polygonStart: function() {+        clip.point = pointRing;+        clip.lineStart = ringStart;+        clip.lineEnd = ringEnd;+        segments = [];+        polygon = [];+      },+      polygonEnd: function() {+        clip.point = point;+        clip.lineStart = lineStart;+        clip.lineEnd = lineEnd;+        segments = merge(segments);+        var startInside = polygonContains(polygon, rotatedStart);+        if (segments.length) {+          if (!polygonStarted) sink.polygonStart(), polygonStarted = true;+          clipPolygon(segments, compareIntersection, startInside, interpolate, sink);+        } else if (startInside) {+          if (!polygonStarted) sink.polygonStart(), polygonStarted = true;+          sink.lineStart();+          interpolate(null, null, 1, sink);+          sink.lineEnd();+        }+        if (polygonStarted) sink.polygonEnd(), polygonStarted = false;+        segments = polygon = null;+      },+      sphere: function() {+        sink.polygonStart();+        sink.lineStart();+        interpolate(null, null, 1, sink);+        sink.lineEnd();+        sink.polygonEnd();+      }+    };++    function point(lambda, phi) {+      var point = rotate(lambda, phi);+      if (pointVisible(lambda = point[0], phi = point[1])) sink.point(lambda, phi);+    }++    function pointLine(lambda, phi) {+      var point = rotate(lambda, phi);+      line.point(point[0], point[1]);+    }++    function lineStart() {+      clip.point = pointLine;+      line.lineStart();+    }++    function lineEnd() {+      clip.point = point;+      line.lineEnd();+    }++    function pointRing(lambda, phi) {+      ring.push([lambda, phi]);+      var point = rotate(lambda, phi);+      ringSink.point(point[0], point[1]);+    }++    function ringStart() {+      ringSink.lineStart();+      ring = [];+    }++    function ringEnd() {+      pointRing(ring[0][0], ring[0][1]);+      ringSink.lineEnd();++      var clean = ringSink.clean(),+          ringSegments = ringBuffer.result(),+          i, n = ringSegments.length, m,+          segment,+          point;++      ring.pop();+      polygon.push(ring);+      ring = null;++      if (!n) return;++      // No intersections.+      if (clean & 1) {+        segment = ringSegments[0];+        if ((m = segment.length - 1) > 0) {+          if (!polygonStarted) sink.polygonStart(), polygonStarted = true;+          sink.lineStart();+          for (i = 0; i < m; ++i) sink.point((point = segment[i])[0], point[1]);+          sink.lineEnd();+        }+        return;+      }++      // Rejoin connected segments.+      // TODO reuse ringBuffer.rejoin()?+      if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift()));++      segments.push(ringSegments.filter(validSegment));+    }++    return clip;+  };+};++function validSegment(segment) {+  return segment.length > 1;+}++// Intersections are sorted along the clip edge. For both antimeridian cutting+// and circle clipping, the same comparison is used.+function compareIntersection(a, b) {+  return ((a = a.x)[0] < 0 ? a[1] - halfPi$3 - epsilon$4 : halfPi$3 - a[1])+       - ((b = b.x)[0] < 0 ? b[1] - halfPi$3 - epsilon$4 : halfPi$3 - b[1]);+}++var clipAntimeridian = clip(+  function() { return true; },+  clipAntimeridianLine,+  clipAntimeridianInterpolate,+  [-pi$4, -halfPi$3]+);++// Takes a line and cuts into visible segments. Return values: 0 - there were+// intersections or the line was empty; 1 - no intersections; 2 - there were+// intersections, and the first and last segments should be rejoined.+function clipAntimeridianLine(stream) {+  var lambda0 = NaN,+      phi0 = NaN,+      sign0 = NaN,+      clean; // no intersections++  return {+    lineStart: function() {+      stream.lineStart();+      clean = 1;+    },+    point: function(lambda1, phi1) {+      var sign1 = lambda1 > 0 ? pi$4 : -pi$4,+          delta = abs(lambda1 - lambda0);+      if (abs(delta - pi$4) < epsilon$4) { // line crosses a pole+        stream.point(lambda0, phi0 = (phi0 + phi1) / 2 > 0 ? halfPi$3 : -halfPi$3);+        stream.point(sign0, phi0);+        stream.lineEnd();+        stream.lineStart();+        stream.point(sign1, phi0);+        stream.point(lambda1, phi0);+        clean = 0;+      } else if (sign0 !== sign1 && delta >= pi$4) { // line crosses antimeridian+        if (abs(lambda0 - sign0) < epsilon$4) lambda0 -= sign0 * epsilon$4; // handle degeneracies+        if (abs(lambda1 - sign1) < epsilon$4) lambda1 -= sign1 * epsilon$4;+        phi0 = clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1);+        stream.point(sign0, phi0);+        stream.lineEnd();+        stream.lineStart();+        stream.point(sign1, phi0);+        clean = 0;+      }+      stream.point(lambda0 = lambda1, phi0 = phi1);+      sign0 = sign1;+    },+    lineEnd: function() {+      stream.lineEnd();+      lambda0 = phi0 = NaN;+    },+    clean: function() {+      return 2 - clean; // if intersections, rejoin first and last segments+    }+  };+}++function clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1) {+  var cosPhi0,+      cosPhi1,+      sinLambda0Lambda1 = sin$1(lambda0 - lambda1);+  return abs(sinLambda0Lambda1) > epsilon$4+      ? atan((sin$1(phi0) * (cosPhi1 = cos$1(phi1)) * sin$1(lambda1)+          - sin$1(phi1) * (cosPhi0 = cos$1(phi0)) * sin$1(lambda0))+          / (cosPhi0 * cosPhi1 * sinLambda0Lambda1))+      : (phi0 + phi1) / 2;+}++function clipAntimeridianInterpolate(from, to, direction, stream) {+  var phi;+  if (from == null) {+    phi = direction * halfPi$3;+    stream.point(-pi$4, phi);+    stream.point(0, phi);+    stream.point(pi$4, phi);+    stream.point(pi$4, 0);+    stream.point(pi$4, -phi);+    stream.point(0, -phi);+    stream.point(-pi$4, -phi);+    stream.point(-pi$4, 0);+    stream.point(-pi$4, phi);+  } else if (abs(from[0] - to[0]) > epsilon$4) {+    var lambda = from[0] < to[0] ? pi$4 : -pi$4;+    phi = direction * lambda / 2;+    stream.point(-lambda, phi);+    stream.point(0, phi);+    stream.point(lambda, phi);+  } else {+    stream.point(to[0], to[1]);+  }+}++var clipCircle = function(radius, delta) {+  var cr = cos$1(radius),+      smallRadius = cr > 0,+      notHemisphere = abs(cr) > epsilon$4; // TODO optimise for this common case++  function interpolate(from, to, direction, stream) {+    circleStream(stream, radius, delta, direction, from, to);+  }++  function visible(lambda, phi) {+    return cos$1(lambda) * cos$1(phi) > cr;+  }++  // Takes a line and cuts into visible segments. Return values used for polygon+  // clipping: 0 - there were intersections or the line was empty; 1 - no+  // intersections 2 - there were intersections, and the first and last segments+  // should be rejoined.+  function clipLine(stream) {+    var point0, // previous point+        c0, // code for previous point+        v0, // visibility of previous point+        v00, // visibility of first point+        clean; // no intersections+    return {+      lineStart: function() {+        v00 = v0 = false;+        clean = 1;+      },+      point: function(lambda, phi) {+        var point1 = [lambda, phi],+            point2,+            v = visible(lambda, phi),+            c = smallRadius+              ? v ? 0 : code(lambda, phi)+              : v ? code(lambda + (lambda < 0 ? pi$4 : -pi$4), phi) : 0;+        if (!point0 && (v00 = v0 = v)) stream.lineStart();+        // Handle degeneracies.+        // TODO ignore if not clipping polygons.+        if (v !== v0) {+          point2 = intersect(point0, point1);+          if (pointEqual(point0, point2) || pointEqual(point1, point2)) {+            point1[0] += epsilon$4;+            point1[1] += epsilon$4;+            v = visible(point1[0], point1[1]);+          }+        }+        if (v !== v0) {+          clean = 0;+          if (v) {+            // outside going in+            stream.lineStart();+            point2 = intersect(point1, point0);+            stream.point(point2[0], point2[1]);+          } else {+            // inside going out+            point2 = intersect(point0, point1);+            stream.point(point2[0], point2[1]);+            stream.lineEnd();+          }+          point0 = point2;+        } else if (notHemisphere && point0 && smallRadius ^ v) {+          var t;+          // If the codes for two points are different, or are both zero,+          // and there this segment intersects with the small circle.+          if (!(c & c0) && (t = intersect(point1, point0, true))) {+            clean = 0;+            if (smallRadius) {+              stream.lineStart();+              stream.point(t[0][0], t[0][1]);+              stream.point(t[1][0], t[1][1]);+              stream.lineEnd();+            } else {+              stream.point(t[1][0], t[1][1]);+              stream.lineEnd();+              stream.lineStart();+              stream.point(t[0][0], t[0][1]);+            }+          }+        }+        if (v && (!point0 || !pointEqual(point0, point1))) {+          stream.point(point1[0], point1[1]);+        }+        point0 = point1, v0 = v, c0 = c;+      },+      lineEnd: function() {+        if (v0) stream.lineEnd();+        point0 = null;+      },+      // Rejoin first and last segments if there were intersections and the first+      // and last points were visible.+      clean: function() {+        return clean | ((v00 && v0) << 1);+      }+    };+  }++  // Intersects the great circle between a and b with the clip circle.+  function intersect(a, b, two) {+    var pa = cartesian(a),+        pb = cartesian(b);++    // We have two planes, n1.p = d1 and n2.p = d2.+    // Find intersection line p(t) = c1 n1 + c2 n2 + t (n1 ⨯ n2).+    var n1 = [1, 0, 0], // normal+        n2 = cartesianCross(pa, pb),+        n2n2 = cartesianDot(n2, n2),+        n1n2 = n2[0], // cartesianDot(n1, n2),+        determinant = n2n2 - n1n2 * n1n2;++    // Two polar points.+    if (!determinant) return !two && a;++    var c1 =  cr * n2n2 / determinant,+        c2 = -cr * n1n2 / determinant,+        n1xn2 = cartesianCross(n1, n2),+        A = cartesianScale(n1, c1),+        B = cartesianScale(n2, c2);+    cartesianAddInPlace(A, B);++    // Solve |p(t)|^2 = 1.+    var u = n1xn2,+        w = cartesianDot(A, u),+        uu = cartesianDot(u, u),+        t2 = w * w - uu * (cartesianDot(A, A) - 1);++    if (t2 < 0) return;++    var t = sqrt$1(t2),+        q = cartesianScale(u, (-w - t) / uu);+    cartesianAddInPlace(q, A);+    q = spherical(q);++    if (!two) return q;++    // Two intersection points.+    var lambda0 = a[0],+        lambda1 = b[0],+        phi0 = a[1],+        phi1 = b[1],+        z;++    if (lambda1 < lambda0) z = lambda0, lambda0 = lambda1, lambda1 = z;++    var delta = lambda1 - lambda0,+        polar = abs(delta - pi$4) < epsilon$4,+        meridian = polar || delta < epsilon$4;++    if (!polar && phi1 < phi0) z = phi0, phi0 = phi1, phi1 = z;++    // Check that the first point is between a and b.+    if (meridian+        ? polar+          ? phi0 + phi1 > 0 ^ q[1] < (abs(q[0] - lambda0) < epsilon$4 ? phi0 : phi1)+          : phi0 <= q[1] && q[1] <= phi1+        : delta > pi$4 ^ (lambda0 <= q[0] && q[0] <= lambda1)) {+      var q1 = cartesianScale(u, (-w + t) / uu);+      cartesianAddInPlace(q1, A);+      return [q, spherical(q1)];+    }+  }++  // Generates a 4-bit vector representing the location of a point relative to+  // the small circle's bounding box.+  function code(lambda, phi) {+    var r = smallRadius ? radius : pi$4 - radius,+        code = 0;+    if (lambda < -r) code |= 1; // left+    else if (lambda > r) code |= 2; // right+    if (phi < -r) code |= 4; // below+    else if (phi > r) code |= 8; // above+    return code;+  }++  return clip(visible, clipLine, interpolate, smallRadius ? [0, -radius] : [-pi$4, radius - pi$4]);+};++var transform$1 = function(methods) {+  return {+    stream: transformer(methods)+  };+};++function transformer(methods) {+  return function(stream) {+    var s = new TransformStream;+    for (var key in methods) s[key] = methods[key];+    s.stream = stream;+    return s;+  };+}++function TransformStream() {}++TransformStream.prototype = {+  constructor: TransformStream,+  point: function(x, y) { this.stream.point(x, y); },+  sphere: function() { this.stream.sphere(); },+  lineStart: function() { this.stream.lineStart(); },+  lineEnd: function() { this.stream.lineEnd(); },+  polygonStart: function() { this.stream.polygonStart(); },+  polygonEnd: function() { this.stream.polygonEnd(); }+};++function fitExtent(projection, extent, object) {+  var w = extent[1][0] - extent[0][0],+      h = extent[1][1] - extent[0][1],+      clip = projection.clipExtent && projection.clipExtent();++  projection+      .scale(150)+      .translate([0, 0]);++  if (clip != null) projection.clipExtent(null);++  geoStream(object, projection.stream(boundsStream$1));++  var b = boundsStream$1.result(),+      k = Math.min(w / (b[1][0] - b[0][0]), h / (b[1][1] - b[0][1])),+      x = +extent[0][0] + (w - k * (b[1][0] + b[0][0])) / 2,+      y = +extent[0][1] + (h - k * (b[1][1] + b[0][1])) / 2;++  if (clip != null) projection.clipExtent(clip);++  return projection+      .scale(k * 150)+      .translate([x, y]);+}++function fitSize(projection, size, object) {+  return fitExtent(projection, [[0, 0], size], object);+}++var maxDepth = 16;+var cosMinDistance = cos$1(30 * radians); // cos(minimum angular distance)++var resample = function(project, delta2) {+  return +delta2 ? resample$1(project, delta2) : resampleNone(project);+};++function resampleNone(project) {+  return transformer({+    point: function(x, y) {+      x = project(x, y);+      this.stream.point(x[0], x[1]);+    }+  });+}++function resample$1(project, delta2) {++  function resampleLineTo(x0, y0, lambda0, a0, b0, c0, x1, y1, lambda1, a1, b1, c1, depth, stream) {+    var dx = x1 - x0,+        dy = y1 - y0,+        d2 = dx * dx + dy * dy;+    if (d2 > 4 * delta2 && depth--) {+      var a = a0 + a1,+          b = b0 + b1,+          c = c0 + c1,+          m = sqrt$1(a * a + b * b + c * c),+          phi2 = asin$1(c /= m),+          lambda2 = abs(abs(c) - 1) < epsilon$4 || abs(lambda0 - lambda1) < epsilon$4 ? (lambda0 + lambda1) / 2 : atan2(b, a),+          p = project(lambda2, phi2),+          x2 = p[0],+          y2 = p[1],+          dx2 = x2 - x0,+          dy2 = y2 - y0,+          dz = dy * dx2 - dx * dy2;+      if (dz * dz / d2 > delta2 // perpendicular projected distance+          || abs((dx * dx2 + dy * dy2) / d2 - 0.5) > 0.3 // midpoint close to an end+          || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) { // angular distance+        resampleLineTo(x0, y0, lambda0, a0, b0, c0, x2, y2, lambda2, a /= m, b /= m, c, depth, stream);+        stream.point(x2, y2);+        resampleLineTo(x2, y2, lambda2, a, b, c, x1, y1, lambda1, a1, b1, c1, depth, stream);+      }+    }+  }+  return function(stream) {+    var lambda00, x00, y00, a00, b00, c00, // first point+        lambda0, x0, y0, a0, b0, c0; // previous point++    var resampleStream = {+      point: point,+      lineStart: lineStart,+      lineEnd: lineEnd,+      polygonStart: function() { stream.polygonStart(); resampleStream.lineStart = ringStart; },+      polygonEnd: function() { stream.polygonEnd(); resampleStream.lineStart = lineStart; }+    };++    function point(x, y) {+      x = project(x, y);+      stream.point(x[0], x[1]);+    }++    function lineStart() {+      x0 = NaN;+      resampleStream.point = linePoint;+      stream.lineStart();+    }++    function linePoint(lambda, phi) {+      var c = cartesian([lambda, phi]), p = project(lambda, phi);+      resampleLineTo(x0, y0, lambda0, a0, b0, c0, x0 = p[0], y0 = p[1], lambda0 = lambda, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream);+      stream.point(x0, y0);+    }++    function lineEnd() {+      resampleStream.point = point;+      stream.lineEnd();+    }++    function ringStart() {+      lineStart();+      resampleStream.point = ringPoint;+      resampleStream.lineEnd = ringEnd;+    }++    function ringPoint(lambda, phi) {+      linePoint(lambda00 = lambda, phi), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0;+      resampleStream.point = linePoint;+    }++    function ringEnd() {+      resampleLineTo(x0, y0, lambda0, a0, b0, c0, x00, y00, lambda00, a00, b00, c00, maxDepth, stream);+      resampleStream.lineEnd = lineEnd;+      lineEnd();+    }++    return resampleStream;+  };+}++var transformRadians = transformer({+  point: function(x, y) {+    this.stream.point(x * radians, y * radians);+  }+});++function projection(project) {+  return projectionMutator(function() { return project; })();+}++function projectionMutator(projectAt) {+  var project,+      k = 150, // scale+      x = 480, y = 250, // translate+      dx, dy, lambda = 0, phi = 0, // center+      deltaLambda = 0, deltaPhi = 0, deltaGamma = 0, rotate, projectRotate, // rotate+      theta = null, preclip = clipAntimeridian, // clip angle+      x0 = null, y0, x1, y1, postclip = identity$7, // clip extent+      delta2 = 0.5, projectResample = resample(projectTransform, delta2), // precision+      cache,+      cacheStream;++  function projection(point) {+    point = projectRotate(point[0] * radians, point[1] * radians);+    return [point[0] * k + dx, dy - point[1] * k];+  }++  function invert(point) {+    point = projectRotate.invert((point[0] - dx) / k, (dy - point[1]) / k);+    return point && [point[0] * degrees$1, point[1] * degrees$1];+  }++  function projectTransform(x, y) {+    return x = project(x, y), [x[0] * k + dx, dy - x[1] * k];+  }++  projection.stream = function(stream) {+    return cache && cacheStream === stream ? cache : cache = transformRadians(preclip(rotate, projectResample(postclip(cacheStream = stream))));+  };++  projection.clipAngle = function(_) {+    return arguments.length ? (preclip = +_ ? clipCircle(theta = _ * radians, 6 * radians) : (theta = null, clipAntimeridian), reset()) : theta * degrees$1;+  };++  projection.clipExtent = function(_) {+    return arguments.length ? (postclip = _ == null ? (x0 = y0 = x1 = y1 = null, identity$7) : clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]];+  };++  projection.scale = function(_) {+    return arguments.length ? (k = +_, recenter()) : k;+  };++  projection.translate = function(_) {+    return arguments.length ? (x = +_[0], y = +_[1], recenter()) : [x, y];+  };++  projection.center = function(_) {+    return arguments.length ? (lambda = _[0] % 360 * radians, phi = _[1] % 360 * radians, recenter()) : [lambda * degrees$1, phi * degrees$1];+  };++  projection.rotate = function(_) {+    return arguments.length ? (deltaLambda = _[0] % 360 * radians, deltaPhi = _[1] % 360 * radians, deltaGamma = _.length > 2 ? _[2] % 360 * radians : 0, recenter()) : [deltaLambda * degrees$1, deltaPhi * degrees$1, deltaGamma * degrees$1];+  };++  projection.precision = function(_) {+    return arguments.length ? (projectResample = resample(projectTransform, delta2 = _ * _), reset()) : sqrt$1(delta2);+  };++  projection.fitExtent = function(extent, object) {+    return fitExtent(projection, extent, object);+  };++  projection.fitSize = function(size, object) {+    return fitSize(projection, size, object);+  };++  function recenter() {+    projectRotate = compose(rotate = rotateRadians(deltaLambda, deltaPhi, deltaGamma), project);+    var center = project(lambda, phi);+    dx = x - center[0] * k;+    dy = y + center[1] * k;+    return reset();+  }++  function reset() {+    cache = cacheStream = null;+    return projection;+  }++  return function() {+    project = projectAt.apply(this, arguments);+    projection.invert = project.invert && invert;+    return recenter();+  };+}++function conicProjection(projectAt) {+  var phi0 = 0,+      phi1 = pi$4 / 3,+      m = projectionMutator(projectAt),+      p = m(phi0, phi1);++  p.parallels = function(_) {+    return arguments.length ? m(phi0 = _[0] * radians, phi1 = _[1] * radians) : [phi0 * degrees$1, phi1 * degrees$1];+  };++  return p;+}++function cylindricalEqualAreaRaw(phi0) {+  var cosPhi0 = cos$1(phi0);++  function forward(lambda, phi) {+    return [lambda * cosPhi0, sin$1(phi) / cosPhi0];+  }++  forward.invert = function(x, y) {+    return [x / cosPhi0, asin$1(y * cosPhi0)];+  };++  return forward;+}++function conicEqualAreaRaw(y0, y1) {+  var sy0 = sin$1(y0), n = (sy0 + sin$1(y1)) / 2;++  // Are the parallels symmetrical around the Equator?+  if (abs(n) < epsilon$4) return cylindricalEqualAreaRaw(y0);++  var c = 1 + sy0 * (2 * n - sy0), r0 = sqrt$1(c) / n;++  function project(x, y) {+    var r = sqrt$1(c - 2 * n * sin$1(y)) / n;+    return [r * sin$1(x *= n), r0 - r * cos$1(x)];+  }++  project.invert = function(x, y) {+    var r0y = r0 - y;+    return [atan2(x, abs(r0y)) / n * sign$1(r0y), asin$1((c - (x * x + r0y * r0y) * n * n) / (2 * n))];+  };++  return project;+}++var conicEqualArea = function() {+  return conicProjection(conicEqualAreaRaw)+      .scale(155.424)+      .center([0, 33.6442]);+};++var albers = function() {+  return conicEqualArea()+      .parallels([29.5, 45.5])+      .scale(1070)+      .translate([480, 250])+      .rotate([96, 0])+      .center([-0.6, 38.7]);+};++// The projections must have mutually exclusive clip regions on the sphere,+// as this will avoid emitting interleaving lines and polygons.+function multiplex(streams) {+  var n = streams.length;+  return {+    point: function(x, y) { var i = -1; while (++i < n) streams[i].point(x, y); },+    sphere: function() { var i = -1; while (++i < n) streams[i].sphere(); },+    lineStart: function() { var i = -1; while (++i < n) streams[i].lineStart(); },+    lineEnd: function() { var i = -1; while (++i < n) streams[i].lineEnd(); },+    polygonStart: function() { var i = -1; while (++i < n) streams[i].polygonStart(); },+    polygonEnd: function() { var i = -1; while (++i < n) streams[i].polygonEnd(); }+  };+}++// A composite projection for the United States, configured by default for+// 960×500. The projection also works quite well at 960×600 if you change the+// scale to 1285 and adjust the translate accordingly. The set of standard+// parallels for each region comes from USGS, which is published here:+// http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#albers+var albersUsa = function() {+  var cache,+      cacheStream,+      lower48 = albers(), lower48Point,+      alaska = conicEqualArea().rotate([154, 0]).center([-2, 58.5]).parallels([55, 65]), alaskaPoint, // EPSG:3338+      hawaii = conicEqualArea().rotate([157, 0]).center([-3, 19.9]).parallels([8, 18]), hawaiiPoint, // ESRI:102007+      point, pointStream = {point: function(x, y) { point = [x, y]; }};++  function albersUsa(coordinates) {+    var x = coordinates[0], y = coordinates[1];+    return point = null,+        (lower48Point.point(x, y), point)+        || (alaskaPoint.point(x, y), point)+        || (hawaiiPoint.point(x, y), point);+  }++  albersUsa.invert = function(coordinates) {+    var k = lower48.scale(),+        t = lower48.translate(),+        x = (coordinates[0] - t[0]) / k,+        y = (coordinates[1] - t[1]) / k;+    return (y >= 0.120 && y < 0.234 && x >= -0.425 && x < -0.214 ? alaska+        : y >= 0.166 && y < 0.234 && x >= -0.214 && x < -0.115 ? hawaii+        : lower48).invert(coordinates);+  };++  albersUsa.stream = function(stream) {+    return cache && cacheStream === stream ? cache : cache = multiplex([lower48.stream(cacheStream = stream), alaska.stream(stream), hawaii.stream(stream)]);+  };++  albersUsa.precision = function(_) {+    if (!arguments.length) return lower48.precision();+    lower48.precision(_), alaska.precision(_), hawaii.precision(_);+    return reset();+  };++  albersUsa.scale = function(_) {+    if (!arguments.length) return lower48.scale();+    lower48.scale(_), alaska.scale(_ * 0.35), hawaii.scale(_);+    return albersUsa.translate(lower48.translate());+  };++  albersUsa.translate = function(_) {+    if (!arguments.length) return lower48.translate();+    var k = lower48.scale(), x = +_[0], y = +_[1];++    lower48Point = lower48+        .translate(_)+        .clipExtent([[x - 0.455 * k, y - 0.238 * k], [x + 0.455 * k, y + 0.238 * k]])+        .stream(pointStream);++    alaskaPoint = alaska+        .translate([x - 0.307 * k, y + 0.201 * k])+        .clipExtent([[x - 0.425 * k + epsilon$4, y + 0.120 * k + epsilon$4], [x - 0.214 * k - epsilon$4, y + 0.234 * k - epsilon$4]])+        .stream(pointStream);++    hawaiiPoint = hawaii+        .translate([x - 0.205 * k, y + 0.212 * k])+        .clipExtent([[x - 0.214 * k + epsilon$4, y + 0.166 * k + epsilon$4], [x - 0.115 * k - epsilon$4, y + 0.234 * k - epsilon$4]])+        .stream(pointStream);++    return reset();+  };++  albersUsa.fitExtent = function(extent, object) {+    return fitExtent(albersUsa, extent, object);+  };++  albersUsa.fitSize = function(size, object) {+    return fitSize(albersUsa, size, object);+  };++  function reset() {+    cache = cacheStream = null;+    return albersUsa;+  }++  return albersUsa.scale(1070);+};++function azimuthalRaw(scale) {+  return function(x, y) {+    var cx = cos$1(x),+        cy = cos$1(y),+        k = scale(cx * cy);+    return [+      k * cy * sin$1(x),+      k * sin$1(y)+    ];+  }+}++function azimuthalInvert(angle) {+  return function(x, y) {+    var z = sqrt$1(x * x + y * y),+        c = angle(z),+        sc = sin$1(c),+        cc = cos$1(c);+    return [+      atan2(x * sc, z * cc),+      asin$1(z && y * sc / z)+    ];+  }+}++var azimuthalEqualAreaRaw = azimuthalRaw(function(cxcy) {+  return sqrt$1(2 / (1 + cxcy));+});++azimuthalEqualAreaRaw.invert = azimuthalInvert(function(z) {+  return 2 * asin$1(z / 2);+});++var azimuthalEqualArea = function() {+  return projection(azimuthalEqualAreaRaw)+      .scale(124.75)+      .clipAngle(180 - 1e-3);+};++var azimuthalEquidistantRaw = azimuthalRaw(function(c) {+  return (c = acos(c)) && c / sin$1(c);+});++azimuthalEquidistantRaw.invert = azimuthalInvert(function(z) {+  return z;+});++var azimuthalEquidistant = function() {+  return projection(azimuthalEquidistantRaw)+      .scale(79.4188)+      .clipAngle(180 - 1e-3);+};++function mercatorRaw(lambda, phi) {+  return [lambda, log$1(tan((halfPi$3 + phi) / 2))];+}++mercatorRaw.invert = function(x, y) {+  return [x, 2 * atan(exp(y)) - halfPi$3];+};++var mercator = function() {+  return mercatorProjection(mercatorRaw)+      .scale(961 / tau$4);+};++function mercatorProjection(project) {+  var m = projection(project),+      scale = m.scale,+      translate = m.translate,+      clipExtent = m.clipExtent,+      clipAuto;++  m.scale = function(_) {+    return arguments.length ? (scale(_), clipAuto && m.clipExtent(null), m) : scale();+  };++  m.translate = function(_) {+    return arguments.length ? (translate(_), clipAuto && m.clipExtent(null), m) : translate();+  };++  m.clipExtent = function(_) {+    if (!arguments.length) return clipAuto ? null : clipExtent();+    if (clipAuto = _ == null) {+      var k = pi$4 * scale(),+          t = translate();+      _ = [[t[0] - k, t[1] - k], [t[0] + k, t[1] + k]];+    }+    clipExtent(_);+    return m;+  };++  return m.clipExtent(null);+}++function tany(y) {+  return tan((halfPi$3 + y) / 2);+}++function conicConformalRaw(y0, y1) {+  var cy0 = cos$1(y0),+      n = y0 === y1 ? sin$1(y0) : log$1(cy0 / cos$1(y1)) / log$1(tany(y1) / tany(y0)),+      f = cy0 * pow$1(tany(y0), n) / n;++  if (!n) return mercatorRaw;++  function project(x, y) {+    if (f > 0) { if (y < -halfPi$3 + epsilon$4) y = -halfPi$3 + epsilon$4; }+    else { if (y > halfPi$3 - epsilon$4) y = halfPi$3 - epsilon$4; }+    var r = f / pow$1(tany(y), n);+    return [r * sin$1(n * x), f - r * cos$1(n * x)];+  }++  project.invert = function(x, y) {+    var fy = f - y, r = sign$1(n) * sqrt$1(x * x + fy * fy);+    return [atan2(x, abs(fy)) / n * sign$1(fy), 2 * atan(pow$1(f / r, 1 / n)) - halfPi$3];+  };++  return project;+}++var conicConformal = function() {+  return conicProjection(conicConformalRaw)+      .scale(109.5)+      .parallels([30, 30]);+};++function equirectangularRaw(lambda, phi) {+  return [lambda, phi];+}++equirectangularRaw.invert = equirectangularRaw;++var equirectangular = function() {+  return projection(equirectangularRaw)+      .scale(152.63);+};++function conicEquidistantRaw(y0, y1) {+  var cy0 = cos$1(y0),+      n = y0 === y1 ? sin$1(y0) : (cy0 - cos$1(y1)) / (y1 - y0),+      g = cy0 / n + y0;++  if (abs(n) < epsilon$4) return equirectangularRaw;++  function project(x, y) {+    var gy = g - y, nx = n * x;+    return [gy * sin$1(nx), g - gy * cos$1(nx)];+  }++  project.invert = function(x, y) {+    var gy = g - y;+    return [atan2(x, abs(gy)) / n * sign$1(gy), g - sign$1(n) * sqrt$1(x * x + gy * gy)];+  };++  return project;+}++var conicEquidistant = function() {+  return conicProjection(conicEquidistantRaw)+      .scale(131.154)+      .center([0, 13.9389]);+};++function gnomonicRaw(x, y) {+  var cy = cos$1(y), k = cos$1(x) * cy;+  return [cy * sin$1(x) / k, sin$1(y) / k];+}++gnomonicRaw.invert = azimuthalInvert(atan);++var gnomonic = function() {+  return projection(gnomonicRaw)+      .scale(144.049)+      .clipAngle(60);+};++function scaleTranslate(kx, ky, tx, ty) {+  return kx === 1 && ky === 1 && tx === 0 && ty === 0 ? identity$7 : transformer({+    point: function(x, y) {+      this.stream.point(x * kx + tx, y * ky + ty);+    }+  });+}++var identity$8 = function() {+  var k = 1, tx = 0, ty = 0, sx = 1, sy = 1, transform = identity$7, // scale, translate and reflect+      x0 = null, y0, x1, y1, clip = identity$7, // clip extent+      cache,+      cacheStream,+      projection;++  function reset() {+    cache = cacheStream = null;+    return projection;+  }++  return projection = {+    stream: function(stream) {+      return cache && cacheStream === stream ? cache : cache = transform(clip(cacheStream = stream));+    },+    clipExtent: function(_) {+      return arguments.length ? (clip = _ == null ? (x0 = y0 = x1 = y1 = null, identity$7) : clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]];+    },+    scale: function(_) {+      return arguments.length ? (transform = scaleTranslate((k = +_) * sx, k * sy, tx, ty), reset()) : k;+    },+    translate: function(_) {+      return arguments.length ? (transform = scaleTranslate(k * sx, k * sy, tx = +_[0], ty = +_[1]), reset()) : [tx, ty];+    },+    reflectX: function(_) {+      return arguments.length ? (transform = scaleTranslate(k * (sx = _ ? -1 : 1), k * sy, tx, ty), reset()) : sx < 0;+    },+    reflectY: function(_) {+      return arguments.length ? (transform = scaleTranslate(k * sx, k * (sy = _ ? -1 : 1), tx, ty), reset()) : sy < 0;+    },+    fitExtent: function(extent, object) {+      return fitExtent(projection, extent, object);+    },+    fitSize: function(size, object) {+      return fitSize(projection, size, object);+    }+  };+};++function orthographicRaw(x, y) {+  return [cos$1(y) * sin$1(x), sin$1(y)];+}++orthographicRaw.invert = azimuthalInvert(asin$1);++var orthographic = function() {+  return projection(orthographicRaw)+      .scale(249.5)+      .clipAngle(90 + epsilon$4);+};++function stereographicRaw(x, y) {+  var cy = cos$1(y), k = 1 + cos$1(x) * cy;+  return [cy * sin$1(x) / k, sin$1(y) / k];+}++stereographicRaw.invert = azimuthalInvert(function(z) {+  return 2 * atan(z);+});++var stereographic = function() {+  return projection(stereographicRaw)+      .scale(250)+      .clipAngle(142);+};++function transverseMercatorRaw(lambda, phi) {+  return [log$1(tan((halfPi$3 + phi) / 2)), -lambda];+}++transverseMercatorRaw.invert = function(x, y) {+  return [-y, 2 * atan(exp(x)) - halfPi$3];+};++var transverseMercator = function() {+  var m = mercatorProjection(transverseMercatorRaw),+      center = m.center,+      rotate = m.rotate;++  m.center = function(_) {+    return arguments.length ? center([-_[1], _[0]]) : (_ = center(), [_[1], -_[0]]);+  };++  m.rotate = function(_) {+    return arguments.length ? rotate([_[0], _[1], _.length > 2 ? _[2] + 90 : 90]) : (_ = rotate(), [_[0], _[1], _[2] - 90]);+  };++  return rotate([0, 0, 90])+      .scale(159.155);+};++exports.version = version;+exports.bisect = bisectRight;+exports.bisectRight = bisectRight;+exports.bisectLeft = bisectLeft;+exports.ascending = ascending;+exports.bisector = bisector;+exports.descending = descending;+exports.deviation = deviation;+exports.extent = extent;+exports.histogram = histogram;+exports.thresholdFreedmanDiaconis = freedmanDiaconis;+exports.thresholdScott = scott;+exports.thresholdSturges = sturges;+exports.max = max;+exports.mean = mean;+exports.median = median;+exports.merge = merge;+exports.min = min;+exports.pairs = pairs;+exports.permute = permute;+exports.quantile = threshold;+exports.range = range;+exports.scan = scan;+exports.shuffle = shuffle;+exports.sum = sum;+exports.ticks = ticks;+exports.tickStep = tickStep;+exports.transpose = transpose;+exports.variance = variance;+exports.zip = zip;+exports.entries = entries;+exports.keys = keys;+exports.values = values;+exports.map = map$1;+exports.set = set;+exports.nest = nest;+exports.randomUniform = uniform;+exports.randomNormal = normal;+exports.randomLogNormal = logNormal;+exports.randomBates = bates;+exports.randomIrwinHall = irwinHall;+exports.randomExponential = exponential;+exports.easeLinear = linear;+exports.easeQuad = quadInOut;+exports.easeQuadIn = quadIn;+exports.easeQuadOut = quadOut;+exports.easeQuadInOut = quadInOut;+exports.easeCubic = cubicInOut;+exports.easeCubicIn = cubicIn;+exports.easeCubicOut = cubicOut;+exports.easeCubicInOut = cubicInOut;+exports.easePoly = polyInOut;+exports.easePolyIn = polyIn;+exports.easePolyOut = polyOut;+exports.easePolyInOut = polyInOut;+exports.easeSin = sinInOut;+exports.easeSinIn = sinIn;+exports.easeSinOut = sinOut;+exports.easeSinInOut = sinInOut;+exports.easeExp = expInOut;+exports.easeExpIn = expIn;+exports.easeExpOut = expOut;+exports.easeExpInOut = expInOut;+exports.easeCircle = circleInOut;+exports.easeCircleIn = circleIn;+exports.easeCircleOut = circleOut;+exports.easeCircleInOut = circleInOut;+exports.easeBounce = bounceOut;+exports.easeBounceIn = bounceIn;+exports.easeBounceOut = bounceOut;+exports.easeBounceInOut = bounceInOut;+exports.easeBack = backInOut;+exports.easeBackIn = backIn;+exports.easeBackOut = backOut;+exports.easeBackInOut = backInOut;+exports.easeElastic = elasticOut;+exports.easeElasticIn = elasticIn;+exports.easeElasticOut = elasticOut;+exports.easeElasticInOut = elasticInOut;+exports.polygonArea = area;+exports.polygonCentroid = centroid;+exports.polygonHull = hull;+exports.polygonContains = contains;+exports.polygonLength = length$1;+exports.path = path;+exports.quadtree = quadtree;+exports.queue = queue;+exports.arc = arc;+exports.area = area$1;+exports.line = line;+exports.pie = pie;+exports.radialArea = radialArea;+exports.radialLine = radialLine$1;+exports.symbol = symbol;+exports.symbols = symbols;+exports.symbolCircle = circle;+exports.symbolCross = cross$1;+exports.symbolDiamond = diamond;+exports.symbolSquare = square;+exports.symbolStar = star;+exports.symbolTriangle = triangle;+exports.symbolWye = wye;+exports.curveBasisClosed = basisClosed;+exports.curveBasisOpen = basisOpen;+exports.curveBasis = basis;+exports.curveBundle = bundle;+exports.curveCardinalClosed = cardinalClosed;+exports.curveCardinalOpen = cardinalOpen;+exports.curveCardinal = cardinal;+exports.curveCatmullRomClosed = catmullRomClosed;+exports.curveCatmullRomOpen = catmullRomOpen;+exports.curveCatmullRom = catmullRom;+exports.curveLinearClosed = linearClosed;+exports.curveLinear = curveLinear;+exports.curveMonotoneX = monotoneX;+exports.curveMonotoneY = monotoneY;+exports.curveNatural = natural;+exports.curveStep = step;+exports.curveStepAfter = stepAfter;+exports.curveStepBefore = stepBefore;+exports.stack = stack;+exports.stackOffsetExpand = expand;+exports.stackOffsetNone = none;+exports.stackOffsetSilhouette = silhouette;+exports.stackOffsetWiggle = wiggle;+exports.stackOrderAscending = ascending$1;+exports.stackOrderDescending = descending$2;+exports.stackOrderInsideOut = insideOut;+exports.stackOrderNone = none$1;+exports.stackOrderReverse = reverse;+exports.color = color;+exports.rgb = rgb;+exports.hsl = hsl;+exports.lab = lab;+exports.hcl = hcl;+exports.cubehelix = cubehelix;+exports.interpolate = interpolate;+exports.interpolateArray = array$1;+exports.interpolateDate = date;+exports.interpolateNumber = interpolateNumber;+exports.interpolateObject = object;+exports.interpolateRound = interpolateRound;+exports.interpolateString = interpolateString;+exports.interpolateTransformCss = interpolateTransformCss;+exports.interpolateTransformSvg = interpolateTransformSvg;+exports.interpolateZoom = interpolateZoom;+exports.interpolateRgb = interpolateRgb;+exports.interpolateRgbBasis = rgbBasis;+exports.interpolateRgbBasisClosed = rgbBasisClosed;+exports.interpolateHsl = hsl$2;+exports.interpolateHslLong = hslLong;+exports.interpolateLab = lab$1;+exports.interpolateHcl = hcl$2;+exports.interpolateHclLong = hclLong;+exports.interpolateCubehelix = cubehelix$2;+exports.interpolateCubehelixLong = cubehelixLong;+exports.interpolateBasis = basis$2;+exports.interpolateBasisClosed = basisClosed$1;+exports.quantize = quantize;+exports.dispatch = dispatch;+exports.dsvFormat = dsv;+exports.csvParse = csvParse;+exports.csvParseRows = csvParseRows;+exports.csvFormat = csvFormat;+exports.csvFormatRows = csvFormatRows;+exports.tsvParse = tsvParse;+exports.tsvParseRows = tsvParseRows;+exports.tsvFormat = tsvFormat;+exports.tsvFormatRows = tsvFormatRows;+exports.request = request;+exports.html = html;+exports.json = json;+exports.text = text;+exports.xml = xml;+exports.csv = csv$1;+exports.tsv = tsv$1;+exports.now = now;+exports.timer = timer;+exports.timerFlush = timerFlush;+exports.timeout = timeout$1;+exports.interval = interval$1;+exports.timeInterval = newInterval;+exports.timeMillisecond = millisecond;+exports.timeMilliseconds = milliseconds;+exports.timeSecond = second;+exports.timeSeconds = seconds;+exports.timeMinute = minute;+exports.timeMinutes = minutes;+exports.timeHour = hour;+exports.timeHours = hours;+exports.timeDay = day;+exports.timeDays = days;+exports.timeWeek = sunday;+exports.timeWeeks = sundays;+exports.timeSunday = sunday;+exports.timeSundays = sundays;+exports.timeMonday = monday;+exports.timeMondays = mondays;+exports.timeTuesday = tuesday;+exports.timeTuesdays = tuesdays;+exports.timeWednesday = wednesday;+exports.timeWednesdays = wednesdays;+exports.timeThursday = thursday;+exports.timeThursdays = thursdays;+exports.timeFriday = friday;+exports.timeFridays = fridays;+exports.timeSaturday = saturday;+exports.timeSaturdays = saturdays;+exports.timeMonth = month;+exports.timeMonths = months;+exports.timeYear = year;+exports.timeYears = years;+exports.utcMillisecond = millisecond;+exports.utcMilliseconds = milliseconds;+exports.utcSecond = second;+exports.utcSeconds = seconds;+exports.utcMinute = utcMinute;+exports.utcMinutes = utcMinutes;+exports.utcHour = utcHour;+exports.utcHours = utcHours;+exports.utcDay = utcDay;+exports.utcDays = utcDays;+exports.utcWeek = utcSunday;+exports.utcWeeks = utcSundays;+exports.utcSunday = utcSunday;+exports.utcSundays = utcSundays;+exports.utcMonday = utcMonday;+exports.utcMondays = utcMondays;+exports.utcTuesday = utcTuesday;+exports.utcTuesdays = utcTuesdays;+exports.utcWednesday = utcWednesday;+exports.utcWednesdays = utcWednesdays;+exports.utcThursday = utcThursday;+exports.utcThursdays = utcThursdays;+exports.utcFriday = utcFriday;+exports.utcFridays = utcFridays;+exports.utcSaturday = utcSaturday;+exports.utcSaturdays = utcSaturdays;+exports.utcMonth = utcMonth;+exports.utcMonths = utcMonths;+exports.utcYear = utcYear;+exports.utcYears = utcYears;+exports.formatLocale = formatLocale;+exports.formatDefaultLocale = defaultLocale;+exports.formatSpecifier = formatSpecifier;+exports.precisionFixed = precisionFixed;+exports.precisionPrefix = precisionPrefix;+exports.precisionRound = precisionRound;+exports.isoFormat = formatIso;+exports.isoParse = parseIso;+exports.timeFormatLocale = formatLocale$1;+exports.timeFormatDefaultLocale = defaultLocale$1;+exports.scaleBand = band;+exports.scalePoint = point$4;+exports.scaleIdentity = identity$4;+exports.scaleLinear = linear$2;+exports.scaleLog = log;+exports.scaleOrdinal = ordinal;+exports.scaleImplicit = implicit;+exports.scalePow = pow;+exports.scaleSqrt = sqrt;+exports.scaleQuantile = quantile$$1;+exports.scaleQuantize = quantize$1;+exports.scaleThreshold = threshold$1;+exports.scaleTime = time;+exports.scaleUtc = utcTime;+exports.schemeCategory10 = category10;+exports.schemeCategory20b = category20b;+exports.schemeCategory20c = category20c;+exports.schemeCategory20 = category20;+exports.scaleSequential = sequential;+exports.interpolateCubehelixDefault = cubehelix$3;+exports.interpolateRainbow = rainbow$1;+exports.interpolateWarm = warm;+exports.interpolateCool = cool;+exports.interpolateViridis = viridis;+exports.interpolateMagma = magma;+exports.interpolateInferno = inferno;+exports.interpolatePlasma = plasma;+exports.creator = creator;+exports.customEvent = customEvent;+exports.local = local;+exports.matcher = matcher$1;+exports.mouse = mouse;+exports.namespace = namespace;+exports.namespaces = namespaces;+exports.select = select;+exports.selectAll = selectAll;+exports.selection = selection;+exports.selector = selector;+exports.selectorAll = selectorAll;+exports.touch = touch;+exports.touches = touches;+exports.window = window;+exports.active = active;+exports.interrupt = interrupt;+exports.transition = transition;+exports.axisTop = axisTop;+exports.axisRight = axisRight;+exports.axisBottom = axisBottom;+exports.axisLeft = axisLeft;+exports.cluster = cluster;+exports.hierarchy = hierarchy;+exports.pack = index;+exports.packSiblings = siblings;+exports.packEnclose = enclose;+exports.partition = partition;+exports.stratify = stratify;+exports.tree = tree;+exports.treemap = index$1;+exports.treemapBinary = binary;+exports.treemapDice = treemapDice;+exports.treemapSlice = treemapSlice;+exports.treemapSliceDice = sliceDice;+exports.treemapSquarify = squarify;+exports.treemapResquarify = resquarify;+exports.forceCenter = center$1;+exports.forceCollide = collide;+exports.forceLink = link;+exports.forceManyBody = manyBody;+exports.forceSimulation = simulation;+exports.forceX = x$3;+exports.forceY = y$3;+exports.drag = drag;+exports.dragDisable = dragDisable;+exports.dragEnable = yesdrag;+exports.voronoi = voronoi;+exports.zoom = zoom;+exports.zoomIdentity = identity$6;+exports.zoomTransform = transform;+exports.brush = brush;+exports.brushX = brushX;+exports.brushY = brushY;+exports.brushSelection = brushSelection;+exports.chord = chord;+exports.ribbon = ribbon;+exports.geoAlbers = albers;+exports.geoAlbersUsa = albersUsa;+exports.geoArea = area$2;+exports.geoAzimuthalEqualArea = azimuthalEqualArea;+exports.geoAzimuthalEqualAreaRaw = azimuthalEqualAreaRaw;+exports.geoAzimuthalEquidistant = azimuthalEquidistant;+exports.geoAzimuthalEquidistantRaw = azimuthalEquidistantRaw;+exports.geoBounds = bounds;+exports.geoCentroid = centroid$1;+exports.geoCircle = circle$1;+exports.geoClipExtent = extent$1;+exports.geoConicConformal = conicConformal;+exports.geoConicConformalRaw = conicConformalRaw;+exports.geoConicEqualArea = conicEqualArea;+exports.geoConicEqualAreaRaw = conicEqualAreaRaw;+exports.geoConicEquidistant = conicEquidistant;+exports.geoConicEquidistantRaw = conicEquidistantRaw;+exports.geoDistance = distance;+exports.geoEquirectangular = equirectangular;+exports.geoEquirectangularRaw = equirectangularRaw;+exports.geoGnomonic = gnomonic;+exports.geoGnomonicRaw = gnomonicRaw;+exports.geoGraticule = graticule;+exports.geoGraticule10 = graticule10;+exports.geoIdentity = identity$8;+exports.geoInterpolate = interpolate$2;+exports.geoLength = length$2;+exports.geoMercator = mercator;+exports.geoMercatorRaw = mercatorRaw;+exports.geoOrthographic = orthographic;+exports.geoOrthographicRaw = orthographicRaw;+exports.geoPath = index$3;+exports.geoProjection = projection;+exports.geoProjectionMutator = projectionMutator;+exports.geoRotation = rotation;+exports.geoStereographic = stereographic;+exports.geoStereographicRaw = stereographicRaw;+exports.geoStream = geoStream;+exports.geoTransform = transform$1;+exports.geoTransverseMercator = transverseMercator;+exports.geoTransverseMercatorRaw = transverseMercatorRaw;++Object.defineProperty(exports, '__esModule', { value: true });++})));
+ data/script.js view
@@ -0,0 +1,45 @@+// from http://bl.ocks.org/mbostock/3885304++var svg = d3.select("svg")++svg.attr({ width: 960, height: 500});++var margin = {top: 20, right: 20, bottom: 30, left: 40},+    width = +svg.attr("width") - margin.left - margin.right,+    height = +svg.attr("height") - margin.top - margin.bottom;++var x = d3.scaleBand().rangeRound([0, width]).padding(0.1),+    y = d3.scaleLinear().rangeRound([height, 0]);++var g = svg.append("g")+      .attr("transform", "translate(" + margin.left + "," + margin.top + ")");++function visie(data) {++  x.domain(data.map(function(d, i) { return i; }));+  y.domain([0, d3.max(data)]);++  g.append("g")+    .attr("class", "axis axis--x")+    .attr("transform", "translate(0," + height + ")")+    .call(d3.axisBottom(x));++  g.append("g")+    .attr("class", "axis axis--y")+    .call(d3.axisLeft(y).ticks(1))+    .append("text")+    .attr("transform", "rotate(-90)")+    .attr("y", 6)+    .attr("dy", "0.71em")+    .attr("text-anchor", "end")+    .text("Frequency");++  g.selectAll(".bar")+    .data(data)+    .enter().append("rect")+    .attr("class", "bar")+    .attr("x", function(d, i) { return x(i); })+    .attr("y", function(d) { return y(d); })+    .attr("width", x.bandwidth())+    .attr("height", function(d) { return height - y(d); });+}
+ data/style.css view
@@ -0,0 +1,11 @@+.bar {+  fill: steelblue;+}++.bar:hover {+  fill: brown;+}++.axis--x path {+  display: none;+}
+ src/Visie.hs view
@@ -0,0 +1,79 @@+{-# LANGUAGE OverloadedStrings #-}+module Visie (visie, custom) where++import Browse (browseLinked, Asset(..))+import Paths_visie (getDataFileName)+import qualified Data.Text as T+import qualified Data.Text.IO as T+import Visie.Index++data D3Version = Version2 | Version3 | Version4 deriving Eq++-- resource description specified by the user, to be fetched from the+-- `data/` directory in the user package and transformed into a+-- Resource to be served+data ResourceDesc =  ResourceDesc {+  fetch :: FilePath,+  serve :: String+}++data Options = Options {+  d3Version :: D3Version,+  index :: Index,+  scriptDesc :: ResourceDesc,+  styleDesc :: ResourceDesc,+  additionalScripts :: [ResourceDesc]+}++defaultOptions = Options {+  d3Version = Version4,+  index = SVG,+  scriptDesc = ResourceDesc "data/script.js" "script.js",+  styleDesc = ResourceDesc "data/style.css" "style.css",+  additionalScripts = []+  }++getResource fileNameGetter (ResourceDesc { fetch = f, serve = s}) = do+  fileName <- fileNameGetter f+  content <- T.readFile fileName+  return Asset { location = s, content = content }++-- common resources are included in the Visie package and can use the+-- local getter+getCommonResource = getResource getDataFileName++d3FileNameFromOptions o+  | v == Version2 = "d3.v2.js"+  | v == Version3 = "d3.v3.js"+  | v == Version4 = "d3.v4.js"+  where v = d3Version o+                                                      +getCommonResources :: Options -> IO [Asset]+getCommonResources options = do+  d3 <- getCommonResource d3ResourceDesc+  pure [index', d3]+    where d3FileName = d3FileNameFromOptions options+          scriptsToAdd = (map serve . additionalScripts) options+          index' = Asset {+            location = "index.html",+            content = makeIndex d3FileName (index options) scriptsToAdd+            }+          d3ResourceDesc = ResourceDesc {+            fetch = "data/" ++ d3FileName,+            serve = d3FileName+            }++custom :: Options -> (FilePath -> IO FilePath) -> (a -> T.Text) -> a -> IO ()+custom options fileNameGetter transform d = do+  common <- getCommonResources options+  user <- sequence (map (getResource fileNameGetter) userDescriptors)+  browseLinked (common <> user <> [dataRes])+  return ()+    where userDescriptors = [style, script] ++ additional+          additional = additionalScripts options+          style = styleDesc options+          script = scriptDesc options+          dataRes = Asset "data.js" . pad . transform $ d+          pad s = T.concat ["visie(", s, ")"]++visie = custom defaultOptions
+ src/Visie/Data.hs view
@@ -0,0 +1,47 @@+{-# LANGUAGE OverloadedStrings #-}+module Visie.Data where++import Visie.ToTimeSeries++import Data.List (sortOn)+import Data.Scientific (fromFloatDigits)+import Data.Time (UTCTime)+import Data.Time.Format (formatTime, defaultTimeLocale)++import qualified Data.Aeson as A+import qualified Data.Aeson.KeyMap as KeyMap+import qualified Data.Text as T+import qualified Data.Text.Lazy as TextLazy+import qualified Data.Text.Lazy.Encoding as TextLazy+import qualified Data.Vector as V++data TextFloat = TextFloat { getText :: T.Text, getFloat :: Float }++squashOrConcat a b+  | a == "" = b+  | b == "" = a+  | a == b = a+  | otherwise = T.concat [a, ", ", b]++instance Semigroup TextFloat where+  (<>) (TextFloat t1 f1) (TextFloat t2 f2) =+    TextFloat (squashOrConcat t1 t2) (f1 + f2)++instance Monoid TextFloat where+  mempty = TextFloat "" 0++toTimestampedTextFloat :: (T.Text, Float, UTCTime) -> Timestamped TextFloat+toTimestampedTextFloat (te, fl, ti) = Timestamped (TextFloat te fl) ti++dateFormat :: UTCTime -> T.Text+dateFormat = T.pack . formatTime defaultTimeLocale "%D"++toText :: [Timestamped TextFloat] -> T.Text+toText =+  let single (Timestamped (TextFloat te fl) ti) =+        A.Object+        (KeyMap.fromList+         [("key",   A.String te),+          ("value", (A.Number . fromFloatDigits) fl),+          ("date",  (A.String . dateFormat) ti)])+  in TextLazy.toStrict . TextLazy.decodeUtf8 . A.encode . A.toJSON . A.Array . V.fromList . map single . sortOn getTime
+ src/Visie/Index.hs view
@@ -0,0 +1,16 @@+{-# LANGUAGE OverloadedStrings #-}+module Visie.Index where++import qualified Data.Text as T++data Index = SVG | ChartDiv deriving Eq++scriptElement loc = T.concat ["<script type=\"text/javascript\" src=\"", T.pack loc, "\"></script>"]++makeIndex d3FileName index additionalScripts = T.concat [start, content, scripts]+  where start = "<!DOCTYPE html> <meta charset=\"utf-8\"> <link rel=\"stylesheet\" href=\"style.css\">"+        content = (if index == SVG then "<svg width=\"900\" height=\"500\"></svg>" else "<div class=\"chart\"></div>")+        d3 = scriptElement d3FileName+        mainScript = scriptElement "script.js"+        dataScript = scriptElement "data.js"+        scripts = T.concat (d3 : map scriptElement additionalScripts ++ [mainScript, dataScript])
+ src/Visie/ToTimeSeries.hs view
@@ -0,0 +1,42 @@+module Visie.ToTimeSeries where++import Data.List (sortOn)+import Data.Time.Clock (NominalDiffTime,addUTCTime)+import Data.Ord (compare)+import Data.Time (UTCTime)++data Timestamped a = Timestamped { getStamped :: a, getTime :: UTCTime }++fill :: Monoid a => UTCTime -> Timestamped a+fill t = Timestamped mempty t++-- | sort `elements` concatenating their monoid when their time falls+-- within the same interval+convert :: Monoid a => NominalDiffTime -> [Timestamped a] -> [Timestamped a]+convert interval elements = sampler sorted+  where sorted = sortOn getTime elements+        times = iterator interval (getTime (head sorted))+        sampler = consume times+        iterator :: NominalDiffTime -> UTCTime -> [UTCTime]+        iterator interval start = iterate (addUTCTime interval) start+        -- at every call, the recursive function returns a processed list, and+        -- it gets a non processed list and a reference date about the last+        -- emitted element. if the next element would have a date greater than+        -- the reference + the interval, a filling element is+        -- created. otherwise, the function will look ahead and merge all+        -- elements within the same interval, pick a representative date for+        -- the merged elements and use it as the new reference+        consume :: Monoid a => [UTCTime] -> [Timestamped a] -> [Timestamped a]+        consume (t:ts) [] = []+        consume (t:ts) elements+          | length preceding == 0 = filled : rest+          | otherwise = foldl (merge t) filled preceding : rest+          where (preceding, succeeding) = span ((<= t) . getTime) elements+                filled = fill t+                rest = consume ts succeeding+                merge :: Monoid a => UTCTime -> Timestamped a -> Timestamped a -> Timestamped a+                merge t (Timestamped a _) (Timestamped b _) = Timestamped (mappend a b) t++convertFill :: Monoid a => UTCTime -> NominalDiffTime -> [Timestamped a] -> [Timestamped a]+convertFill dateTime interval elements = convert interval filledElements+  where filledElements = (fill dateTime):elements
+ test/main.hs view
@@ -0,0 +1,9 @@+import Visie+import Paths_visie (getDataFileName)+import qualified Data.Text as T++testVisie = visie getDataFileName (T.pack . show)++main = do+  testVisie [1, 2, 3]+  testVisie [1..50]
+ visie.cabal view
@@ -0,0 +1,45 @@+-- Initial visie.cabal generated by cabal init.  For further +-- documentation, see http://haskell.org/cabal/users-guide/++name:                visie+version:             0.6.0.0+synopsis:            generate D3 visualisations from Haskell+-- description:         +license:             PublicDomain+license-file:        LICENSE+author:              danse+maintainer:          f.occhipinti@gmail.com+-- copyright:           +-- category:            +build-type:          Simple+-- extra-source-files:  +cabal-version:       >=1.10+data-files: data/d3.v4.js,+            data/d3.v3.js,+            data/d3.v2.js,+            data/style.css,+            data/script.js+            +library+  hs-source-dirs:      src+  exposed-modules:     Visie+                       Visie.ToTimeSeries+                       Visie.Data+                       Visie.Index+  other-modules:       Paths_visie+  -- other-extensions:    +  build-depends:       aeson >= 2.3.0 && < 2.4,+                       base >= 4.19.2 && < 4.20,+                       text >= 2.1.1 && < 2.2,+                       scientific >= 0.3.8 && < 0.4,+                       vector >= 0.13.2 && < 0.14,+                       time >= 1.12.2 && < 1.13,+                       browse >= 0.5.0 && < 0.6+  default-language:    Haskell2010++Test-Suite test+           type: exitcode-stdio-1.0+           hs-source-dirs:      test+           main-is: main.hs+           build-depends: base, text, visie+           default-language:    Haskell2010