diff --git a/LICENSE b/LICENSE new file mode 100644 --- /dev/null +++ b/LICENSE @@ -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. diff --git a/data/d3.v2.js b/data/d3.v2.js new file mode 100644 --- /dev/null +++ b/data/d3.v2.js @@ -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); + 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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("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")); + +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 }); + +}))); diff --git a/data/script.js b/data/script.js new file mode 100644 --- /dev/null +++ b/data/script.js @@ -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); }); +} diff --git a/data/style.css b/data/style.css new file mode 100644 --- /dev/null +++ b/data/style.css @@ -0,0 +1,11 @@ +.bar { + fill: steelblue; +} + +.bar:hover { + fill: brown; +} + +.axis--x path { + display: none; +} diff --git a/src/Visie.hs b/src/Visie.hs new file mode 100644 --- /dev/null +++ b/src/Visie.hs @@ -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 diff --git a/src/Visie/Data.hs b/src/Visie/Data.hs new file mode 100644 --- /dev/null +++ b/src/Visie/Data.hs @@ -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 diff --git a/src/Visie/Index.hs b/src/Visie/Index.hs new file mode 100644 --- /dev/null +++ b/src/Visie/Index.hs @@ -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 [""] + +makeIndex d3FileName index additionalScripts = T.concat [start, content, scripts] + where start = " " + content = (if index == SVG then "" else "
") + d3 = scriptElement d3FileName + mainScript = scriptElement "script.js" + dataScript = scriptElement "data.js" + scripts = T.concat (d3 : map scriptElement additionalScripts ++ [mainScript, dataScript]) diff --git a/src/Visie/ToTimeSeries.hs b/src/Visie/ToTimeSeries.hs new file mode 100644 --- /dev/null +++ b/src/Visie/ToTimeSeries.hs @@ -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 diff --git a/test/main.hs b/test/main.hs new file mode 100644 --- /dev/null +++ b/test/main.hs @@ -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] diff --git a/visie.cabal b/visie.cabal new file mode 100644 --- /dev/null +++ b/visie.cabal @@ -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