diff options
| -rw-r--r-- | media/d3.js | 4042 | ||||
| -rw-r--r-- | media/d3.layout.js | 1883 | ||||
| -rw-r--r-- | media/d3.layout.min.js | 1 | ||||
| -rw-r--r-- | media/d3.min.js | 2 |
4 files changed, 5928 insertions, 0 deletions
diff --git a/media/d3.js b/media/d3.js new file mode 100644 index 00000000..9b77bec1 --- /dev/null +++ b/media/d3.js @@ -0,0 +1,4042 @@ +(function(){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: "2.3.0"}; // semver +var d3_array = d3_arraySlice; // conversion for NodeLists + +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); +} + +try { + d3_array(document.documentElement.childNodes)[0].nodeType; +} catch(e) { + d3_array = d3_arrayCopy; +} + +var d3_arraySubclass = [].__proto__? + +// Until ECMAScript supports array subclassing, prototype injection works well. +function(array, prototype) { + array.__proto__ = prototype; +}: + +// And if your browser doesn't support __proto__, we'll use direct extension. +function(array, prototype) { + for (var property in prototype) array[property] = prototype[property]; +}; +function d3_this() { + return this; +} +d3.functor = function(v) { + return typeof v === "function" ? v : function() { return v; }; +}; +// A getter-setter method that preserves the appropriate `this` context. +d3.rebind = function(object, method) { + return function() { + var x = method.apply(object, arguments); + return arguments.length ? object : x; + }; +}; +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.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.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; +}; +// R-7 per <http://en.wikipedia.org/wiki/Quantile> +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.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; +}; + +function d3_zipLength(d) { + return d.length; +} +// Locate the insertion point for x in a to maintain sorted order. The +// arguments lo and hi may be used to specify a subset of the array which should +// be considered; by default the entire array is used. If x is already present +// in a, the insertion point will be before (to the left of) any existing +// entries. The return value is suitable for use as the first argument to +// `array.splice` assuming that a is already sorted. +// +// The returned insertion point i partitions the array a into two halves so that +// all v < x for v in a[lo:i] for the left side and all v >= x for v in a[i:hi] +// for the right side. +d3.bisectLeft = 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 (a[mid] < x) lo = mid + 1; + else hi = mid; + } + return lo; +}; + +// Similar to bisectLeft, but returns an insertion point which comes after (to +// the right of) any existing entries of x in a. +// +// The returned insertion point i partitions the array into two halves so that +// all v <= x for v in a[lo:i] for the left side and all v > x for v in a[i:hi] +// for the right side. +d3.bisect = +d3.bisectRight = 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 < a[mid]) hi = mid; + else lo = mid + 1; + } + return lo; +}; +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() { + var nest = {}, + keys = [], + sortKeys = [], + sortValues, + rollup; + + 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, + o = {}; + + while (++i < n) { + if ((keyValue = key(object = array[i])) in o) { + o[keyValue].push(object); + } else { + o[keyValue] = [object]; + } + } + + for (keyValue in o) { + o[keyValue] = map(o[keyValue], 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; + } + + 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; + }; + + // Specifies the order for the most-recently specified key. + // Note: only applies to entries. Map keys are unordered! + nest.sortKeys = function(order) { + sortKeys[keys.length - 1] = order; + return nest; + }; + + // Specifies the order for leaf values. + // Applies to both maps and entries array. + 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; +}; + +function d3_splitter(d) { + return d == null; +} +function d3_collapse(s) { + return s.replace(/(^\s+)|(\s+$)/g, "").replace(/\s+/g, " "); +} +/** + * @param {number} start + * @param {number=} stop + * @param {number=} step + */ +d3.range = function(start, stop, step) { + if (arguments.length < 3) { + step = 1; + if (arguments.length < 2) { + stop = start; + start = 0; + } + } + if ((stop - start) / step == Infinity) throw new Error("infinite range"); + var range = [], + i = -1, + j; + if (step < 0) while ((j = start + step * ++i) > stop) range.push(j); + else while ((j = start + step * ++i) < stop) range.push(j); + return range; +}; +d3.requote = function(s) { + return s.replace(d3_requote_re, "\\$&"); +}; + +var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g; +d3.round = function(x, n) { + return n + ? Math.round(x * Math.pow(10, n)) * Math.pow(10, -n) + : Math.round(x); +}; +d3.xhr = function(url, mime, callback) { + var req = new XMLHttpRequest; + if (arguments.length < 3) callback = mime; + else if (mime && req.overrideMimeType) req.overrideMimeType(mime); + req.open("GET", url, true); + req.onreadystatechange = function() { + if (req.readyState === 4) callback(req.status < 300 ? 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) { // Treat empty string as valid HTML. + 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); +}; +d3.ns = { + + prefix: { + 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/" + }, + + qualify: function(name) { + var i = name.indexOf(":"); + return i < 0 ? name : { + space: d3.ns.prefix[name.substring(0, i)], + local: name.substring(i + 1) + }; + } + +}; +/** @param {...string} types */ +d3.dispatch = function(types) { + var dispatch = {}, + type; + for (var i = 0, n = arguments.length; i < n; i++) { + type = arguments[i]; + dispatch[type] = d3_dispatch(type); + } + return dispatch; +}; + +function d3_dispatch(type) { + var dispatch = {}, + listeners = []; + + dispatch.add = function(listener) { + for (var i = 0; i < listeners.length; i++) { + if (listeners[i].listener == listener) return dispatch; // already registered + } + listeners.push({listener: listener, on: true}); + return dispatch; + }; + + dispatch.remove = function(listener) { + for (var i = 0; i < listeners.length; i++) { + var l = listeners[i]; + if (l.listener == listener) { + l.on = false; + listeners = listeners.slice(0, i).concat(listeners.slice(i + 1)); + break; + } + } + return dispatch; + }; + + dispatch.dispatch = function() { + var ls = listeners; // defensive reference + for (var i = 0, n = ls.length; i < n; i++) { + var l = ls[i]; + if (l.on) l.listener.apply(this, arguments); + } + }; + + return dispatch; +}; +// TODO align +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], + percentage = false, + integer = false; + + if (precision) precision = precision.substring(1); + + if (zfill) { + fill = "0"; // TODO align = "="; + if (comma) width -= Math.floor((width - 1) / 4); + } + + switch (type) { + case "n": comma = true; type = "g"; break; + case "%": percentage = true; type = "f"; break; + case "p": percentage = true; type = "r"; break; + case "d": integer = true; precision = "0"; break; + } + + type = d3_format_types[type] || d3_format_typeDefault; + + return function(value) { + var number = percentage ? value * 100 : +value, + negative = (number < 0) && (number = -number) ? "\u2212" : sign; + + // Return the empty string for floats formatted as ints. + if (integer && (number % 1)) return ""; + + // Convert the input value to the desired precision. + value = type(number, precision); + + // If the fill character is 0, the sign and group is applied after the fill. + 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; + } + + // Otherwise (e.g., space-filling), the sign and group is applied before. + 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; + } + if (percentage) value += "%"; + + return value; + }; +}; + +// [[fill]align][sign][#][0][width][,][.precision][type] +var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/; + +var d3_format_types = { + 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) { + var n = x ? 1 + Math.floor(1e-15 + Math.log(x) / Math.LN10) : 1; + return d3.round(x, p - n).toFixed(Math.max(0, Math.min(20, p - n))); + } +}; + +function d3_format_typeDefault(x) { + return x + ""; +} + +// Apply comma grouping for thousands. +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; +} +/* + * TERMS OF USE - EASING EQUATIONS + * + * Open source under the BSD License. + * + * Copyright 2001 Robert Penner + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * - Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * - Neither the name of the author nor the names of contributors may be used to + * endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +var d3_ease_quad = d3_ease_poly(2), + d3_ease_cubic = d3_ease_poly(3); + +var d3_ease = { + linear: function() { return d3_ease_linear; }, + 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 = { + "in": function(f) { return f; }, + "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"; + return d3_ease_clamp(d3_ease_mode[m](d3_ease[t].apply(null, Array.prototype.slice.call(arguments, 1)))); +}; + +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_linear(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 = 0.45; + 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; +} +d3.event = null; +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, // current match + i, // current index + j, // current index (for coallescing) + s0 = 0, // start index of current string prefix + s1 = 0, // end index of current string prefix + s = [], // string constants and placeholders + q = [], // number interpolators + n, // q.length + o; + + // Reset our regular expression! + d3_interpolate_number.lastIndex = 0; + + // Find all numbers in b. + 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)); + + // Find all numbers in a. + for (i = 0, n = q.length; (m = d3_interpolate_number.exec(a)) && i < n; ++i) { + o = q[i]; + if (o.x == m[0]) { // The numbers match, so coallesce. + if (o.i) { + if (s[o.i + 1] == null) { // This match is followed by another number. + s[o.i - 1] += o.x; + s.splice(o.i, 1); + for (j = i + 1; j < n; ++j) q[j].i--; + } else { // This match is followed by a string, so coallesce twice. + 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) { // This match is followed by another number. + s[o.i] = o.x; + } else { // This match is followed by a string, so coallesce twice. + 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)); + } + } + + // Remove any numbers in b not found in a. + while (i < n) { + o = q.pop(); + if (s[o.i + 1] == null) { // This match is followed by another number. + s[o.i] = o.x; + } else { // This match is followed by a string, so coallesce twice. + s[o.i] = o.x + s[o.i + 1]; + s.splice(o.i + 1, 1); + } + n--; + } + + // Special optimization for only a single match. + if (s.length === 1) { + return s[0] == null ? q[0].x : function() { return b; }; + } + + // Otherwise, interpolate each of the numbers and rejoin the string. + return function(t) { + for (i = 0; i < n; ++i) 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 "rgb(" + Math.round(ar + br * t) + + "," + Math.round(ag + bg * t) + + "," + Math.round(ab + bb * t) + + ")"; + }; +}; + +// interpolates HSL space, but outputs RGB string (for compatibility) +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; + return function(t) { + return d3_hsl_rgb(h0 + h1 * t, s0 + s1 * t, l0 + l1 * t).toString(); + }; +}; + +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+\.|\.\d+|\d+)(?:[eE][-]?\d+)?/g, + d3_interpolate_rgb = {background: 1, fill: 1, stroke: 1}; + +function d3_interpolateByName(n) { + return n in d3_interpolate_rgb || /\bcolor\b/.test(n) + ? d3.interpolateRgb + : d3.interpolate; +} + +d3.interpolators = [ + d3.interpolateObject, + function(a, b) { return (b instanceof Array) && d3.interpolateArray(a, b); }, + function(a, b) { return (typeof b === "string") && d3.interpolateString(String(a), b); }, + function(a, b) { return (typeof b === "string" ? b in d3_rgb_names || /^(#|rgb\(|hsl\()/.test(b) : b instanceof d3_Rgb || b instanceof d3_Hsl) && d3.interpolateRgb(String(a), b); }, + function(a, b) { return (typeof b === "number") && d3.interpolateNumber(+a, b); } +]; +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)); }; +} +d3.rgb = function(r, g, b) { + return arguments.length === 1 + ? d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb) + : d3_rgb(~~r, ~~g, ~~b); +}; + +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; +} + +d3_Rgb.prototype.brighter = function(k) { + k = Math.pow(0.7, 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_Rgb.prototype.darker = function(k) { + k = Math.pow(0.7, arguments.length ? k : 1); + return d3_rgb( + Math.max(0, Math.floor(k * this.r)), + Math.max(0, Math.floor(k * this.g)), + Math.max(0, Math.floor(k * this.b))); +}; + +d3_Rgb.prototype.hsl = function() { + return d3_rgb_hsl(this.r, this.g, this.b); +}; + +d3_Rgb.prototype.toString = function() { + return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b); +}; + +function d3_rgb_hex(v) { + return v < 0x10 ? "0" + v.toString(16) : v.toString(16); +} + +function d3_rgb_parse(format, rgb, hsl) { + var r = 0, // red channel; int in [0, 255] + g = 0, // green channel; int in [0, 255] + b = 0, // blue channel; int in [0, 255] + m1, // CSS color specification match + m2, // CSS color specification type (e.g., rgb) + name; + + /* Handle hsl, rgb. */ + m1 = /([a-z]+)\((.*)\)/i.exec(format); + if (m1) { + m2 = m1[2].split(","); + switch (m1[1]) { + case "hsl": { + return hsl( + parseFloat(m2[0]), // degrees + parseFloat(m2[1]) / 100, // percentage + parseFloat(m2[2]) / 100 // percentage + ); + } + case "rgb": { + return rgb( + d3_rgb_parseNumber(m2[0]), + d3_rgb_parseNumber(m2[1]), + d3_rgb_parseNumber(m2[2]) + ); + } + } + } + + /* Named colors. */ + if (name = d3_rgb_names[format]) return rgb(name.r, name.g, name.b); + + /* Hexadecimal colors: #rgb and #rrggbb. */ + 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_parseNumber(c) { // either integer or percentage + var f = parseFloat(c); + return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f; +} + +var d3_rgb_names = { + 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" +}; + +for (var d3_rgb_name in d3_rgb_names) { + d3_rgb_names[d3_rgb_name] = d3_rgb_parse( + d3_rgb_names[d3_rgb_name], + d3_rgb, + d3_hsl_rgb); +} +d3.hsl = function(h, s, l) { + return arguments.length === 1 + ? d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl) + : d3_hsl(+h, +s, +l); +}; + +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; +} + +d3_Hsl.prototype.brighter = function(k) { + k = Math.pow(0.7, arguments.length ? k : 1); + return d3_hsl(this.h, this.s, this.l / k); +}; + +d3_Hsl.prototype.darker = function(k) { + k = Math.pow(0.7, arguments.length ? k : 1); + return d3_hsl(this.h, this.s, k * this.l); +}; + +d3_Hsl.prototype.rgb = function() { + return d3_hsl_rgb(this.h, this.s, this.l); +}; + +d3_Hsl.prototype.toString = function() { + return "hsl(" + this.h + "," + this.s * 100 + "%," + this.l * 100 + "%)"; +}; + +function d3_hsl_rgb(h, s, l) { + var m1, + m2; + + /* Some simple corrections for h, s and l. */ + h = h % 360; if (h < 0) h += 360; + s = s < 0 ? 0 : s > 1 ? 1 : s; + l = l < 0 ? 0 : l > 1 ? 1 : l; + + /* From FvD 13.37, CSS Color Module Level 3 */ + m2 = l <= .5 ? l * (1 + s) : l + s - l * s; + m1 = 2 * l - m2; + + 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); + } + + return d3_rgb(vv(h + 120), vv(h), vv(h - 120)); +} +function d3_selection(groups) { + d3_arraySubclass(groups, d3_selectionPrototype); + return groups; +} + +var d3_select = function(s, n) { return n.querySelector(s); }, + d3_selectAll = function(s, n) { return n.querySelectorAll(s); }; + +// Prefer Sizzle, if available. +if (typeof Sizzle === "function") { + d3_select = function(s, n) { return Sizzle(s, n)[0]; }; + d3_selectAll = function(s, n) { return Sizzle.uniqueSort(Sizzle(s, n)); }; +} + +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); +}; + +function d3_selection_selector(selector) { + return function() { + return d3_select(selector, this); + }; +} +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); +}; + +function d3_selection_selectorAll(selector) { + return function() { + return d3_selectAll(selector, this); + }; +} +d3_selectionPrototype.attr = function(name, value) { + name = d3.ns.qualify(name); + + // If no value is specified, return the first value. + if (arguments.length < 2) { + var node = this.node(); + return name.local + ? node.getAttributeNS(name.space, name.local) + : node.getAttribute(name); + } + + 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); + } + + return this.each(value == null + ? (name.local ? attrNullNS : attrNull) : (typeof value === "function" + ? (name.local ? attrFunctionNS : attrFunction) + : (name.local ? attrConstantNS : attrConstant))); +}; +d3_selectionPrototype.classed = function(name, value) { + var re = new RegExp("(^|\\s+)" + d3.requote(name) + "(\\s+|$)", "g"); + + // If no value is specified, return the first value. + if (arguments.length < 2) { + var node = this.node(); + if (c = node.classList) return c.contains(name); + var c = node.className; + re.lastIndex = 0; + return re.test(c.baseVal != null ? c.baseVal : c); + } + + function classedAdd() { + if (c = this.classList) return c.add(name); + var c = this.className, + cb = c.baseVal != null, + cv = cb ? c.baseVal : c; + re.lastIndex = 0; + if (!re.test(cv)) { + cv = d3_collapse(cv + " " + name); + if (cb) c.baseVal = cv; + else this.className = cv; + } + } + + function classedRemove() { + if (c = this.classList) return c.remove(name); + var c = this.className, + cb = c.baseVal != null, + cv = cb ? c.baseVal : c; + cv = d3_collapse(cv.replace(re, " ")); + if (cb) c.baseVal = cv; + else this.className = cv; + } + + function classedFunction() { + (value.apply(this, arguments) + ? classedAdd + : classedRemove).call(this); + } + + return this.each(typeof value === "function" + ? classedFunction : value + ? classedAdd + : classedRemove); +}; +d3_selectionPrototype.style = function(name, value, priority) { + if (arguments.length < 3) priority = ""; + + // If no value is specified, return the first value. + if (arguments.length < 2) return window + .getComputedStyle(this.node(), null) + .getPropertyValue(name); + + 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 this.each(value == null + ? styleNull : (typeof value === "function" + ? styleFunction : styleConstant)); +}; +d3_selectionPrototype.property = function(name, value) { + + // If no value is specified, return the first value. + if (arguments.length < 2) return this.node()[name]; + + 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 this.each(value == null + ? propertyNull : (typeof value === "function" + ? propertyFunction : propertyConstant)); +}; +d3_selectionPrototype.text = function(value) { + return arguments.length < 1 ? this.node().textContent + : (this.each(typeof value === "function" + ? function() { this.textContent = value.apply(this, arguments); } + : function() { this.textContent = value; })); +}; +d3_selectionPrototype.html = function(value) { + return arguments.length < 1 ? this.node().innerHTML + : (this.each(typeof value === "function" + ? function() { this.innerHTML = value.apply(this, arguments); } + : function() { this.innerHTML = value; })); +}; +// TODO append(node)? +// TODO append(function)? +d3_selectionPrototype.append = function(name) { + name = d3.ns.qualify(name); + + function append() { + return this.appendChild(document.createElement(name)); + } + + function appendNS() { + return this.appendChild(document.createElementNS(name.space, name.local)); + } + + return this.select(name.local ? appendNS : append); +}; +// TODO insert(node, function)? +// TODO insert(function, string)? +// TODO insert(function, function)? +d3_selectionPrototype.insert = function(name, before) { + name = d3.ns.qualify(name); + + function insert() { + return this.insertBefore( + document.createElement(name), + d3_select(before, this)); + } + + function insertNS() { + return this.insertBefore( + document.createElementNS(name.space, name.local), + d3_select(before, this)); + } + + return this.select(name.local ? insertNS : insert); +}; +// TODO remove(selector)? +// TODO remove(node)? +// TODO remove(function)? +d3_selectionPrototype.remove = function() { + return this.each(function() { + var parent = this.parentNode; + if (parent) parent.removeChild(this); + }); +}; +// TODO data(null) for clearing data? +d3_selectionPrototype.data = function(data, join) { + var enter = [], + update = [], + exit = []; + + 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 (join) { + var nodeByKey = {}, + keys = [], + key, + j = groupData.length; + + for (i = -1; ++i < n;) { + key = join.call(node = group[i], node.__data__, i); + if (key in nodeByKey) { + exitNodes[j++] = node; // duplicate key + } else { + nodeByKey[key] = node; + } + keys.push(key); + } + + for (i = -1; ++i < m;) { + node = nodeByKey[key = join.call(groupData, nodeData = groupData[i], 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; + } + delete nodeByKey[key]; + } + + for (i = -1; ++i < n;) { + if (keys[i] in nodeByKey) { + 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; + if (typeof data === "function") { + while (++i < n) { + bind(group = this[i], data.call(group, group.parentNode.__data__, i)); + } + } else { + while (++i < n) { + bind(group = this[i], data); + } + } + + var selection = d3_selection(update); + selection.enter = function() { return d3_selection_enter(enter); }; + selection.exit = function() { return d3_selection(exit); }; + return selection; +}; + +function d3_selection_dataNode(data) { + return {__data__: data}; +} +function d3_selection_enter(selection) { + d3_arraySubclass(selection, d3_selection_enterPrototype); + return selection; +} + +var 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.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); +}; +// TODO preserve null elements to maintain index? +d3_selectionPrototype.filter = function(filter) { + var subgroups = [], + subgroup, + group, + node; + + 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.map = function(map) { + return this.each(function() { + this.__data__ = map.apply(this, arguments); + }); +}; +d3_selectionPrototype.sort = function(comparator) { + comparator = d3_selection_sortComparator.apply(this, arguments); + for (var j = 0, m = this.length; j < m; j++) { + for (var group = this[j].sort(comparator), i = 1, n = group.length, prev = group[0]; i < n; i++) { + var node = group[i]; + if (node) { + if (prev) prev.parentNode.insertBefore(node, prev.nextSibling); + prev = node; + } + } + } + return this; +}; + +function d3_selection_sortComparator(comparator) { + if (!arguments.length) comparator = d3.ascending; + return function(a, b) { + return comparator(a && a.__data__, b && b.__data__); + }; +} +// type can be namespaced, e.g., "click.foo" +// listener can be null for removal +d3_selectionPrototype.on = function(type, listener, capture) { + if (arguments.length < 3) capture = false; + + // parse the type specifier + var name = "__on" + type, i = type.indexOf("."); + if (i > 0) type = type.substring(0, i); + + // if called with only one argument, return the current listener + if (arguments.length < 2) return (i = this.node()[name]) && i._; + + // remove the old event listener, and add the new event listener + return this.each(function(d, i) { + var node = this; + + if (node[name]) node.removeEventListener(type, node[name], capture); + if (listener) node.addEventListener(type, node[name] = l, capture); + + // wrapped event listener that preserves i + function l(e) { + var o = d3.event; // Events can be reentrant (e.g., focus). + d3.event = e; + try { + listener.call(node, node.__data__, i); + } finally { + d3.event = o; + } + } + + // stash the unwrapped listener for retrieval + l._ = listener; + }); +}; +d3_selectionPrototype.each = function(callback) { + for (var j = -1, m = this.length; ++j < m;) { + for (var group = this[j], i = -1, n = group.length; ++i < n;) { + var node = group[i]; + if (node) callback.call(node, node.__data__, i, j); + } + } + return this; +}; +// +// Note: assigning to the arguments array simultaneously changes the value of +// the corresponding argument! +// +// TODO The `this` argument probably shouldn't be the first argument to the +// callback, anyway, since it's redundant. However, that will require a major +// version bump due to backwards compatibility, so I'm not changing it right +// away. +// +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: 0, duration: 250} : null); + } + } + + return d3_transition(subgroups, d3_transitionInheritId || ++d3_transitionId); +}; +var d3_selectionRoot = d3_selection([[document]]); + +d3_selectionRoot[0].parentNode = document.documentElement; + +// TODO fast singleton implementation! +// TODO select(function) +d3.select = function(selector) { + return typeof selector === "string" + ? d3_selectionRoot.select(selector) + : d3_selection([[selector]]); // assume node +}; + +// TODO selectAll(function) +d3.selectAll = function(selector) { + return typeof selector === "string" + ? d3_selectionRoot.selectAll(selector) + : d3_selection([d3_array(selector)]); // assume node[] +}; +function d3_transition(groups, id) { + d3_arraySubclass(groups, d3_transitionPrototype); + + var tweens = {}, + event = d3.dispatch("start", "end"), + ease = d3_transitionEase, + then = Date.now(); + + groups.id = id; + + groups.tween = function(name, tween) { + if (arguments.length < 2) return tweens[name]; + if (tween == null) delete tweens[name]; + else tweens[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[type].add(listener); + return groups; + }; + + d3.timer(function(elapsed) { + groups.each(function(d, i, j) { + var tweened = [], + node = this, + delay = groups[j][i].delay, + duration = groups[j][i].duration, + lock = node.__transition__ || (node.__transition__ = {active: 0, count: 0}); + + ++lock.count; + + delay <= elapsed ? start(elapsed) : d3.timer(start, delay, then); + + function start(elapsed) { + if (lock.active > id) return stop(); + lock.active = id; + + for (var tween in tweens) { + if (tween = tweens[tween].call(node, d, i)) { + tweened.push(tween); + } + } + + event.start.dispatch.call(node, d, i); + if (!tick(elapsed)) d3.timer(tick, 0, then); + 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_transitionInheritId = id; + event.end.dispatch.call(node, d, i); + d3_transitionInheritId = 0; + return 1; + } + } + + function stop() { + if (!--lock.count) delete node.__transition__; + return 1; + } + }); + return 1; + }, 0, then); + + return groups; +} + +function d3_transitionTween(b) { + return typeof b === "function" + ? function(d, i, a) { var v = b.call(this, d, i) + ""; return a != v && d3.interpolate(a, v); } + : (b = b + "", function(d, i, a) { return a != b && d3.interpolate(a, b); }); +} + +var d3_transitionPrototype = [], + d3_transitionId = 0, + d3_transitionInheritId = 0, + d3_transitionEase = d3.ease("cubic-in-out"); + +d3_transitionPrototype.call = d3_selectionPrototype.call; + +d3.transition = function() { + return 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).ease(this.ease()); +}; +d3_transitionPrototype.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 = selector.call(node.node, node.node.__data__, i)); + for (var k = -1, o = subgroup.length; ++k < o;) { + subgroup[k] = {node: subgroup[k], delay: node.delay, duration: node.duration}; + } + } + } + } + + return d3_transition(subgroups, this.id).ease(this.ease()); +}; +d3_transitionPrototype.attr = function(name, value) { + return this.attrTween(name, d3_transitionTween(value)); +}; + +d3_transitionPrototype.attrTween = function(name, tween) { + name = d3.ns.qualify(name); + + function attrTween(d, i) { + var f = tween.call(this, d, i, this.getAttribute(name)); + return 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 && function(t) { + this.setAttributeNS(name.space, name.local, f(t)); + }; + } + + return this.tween("attr." + name, name.local ? attrTweenNS : attrTween); +}; +d3_transitionPrototype.style = function(name, value, priority) { + if (arguments.length < 3) priority = ""; + return this.styleTween(name, d3_transitionTween(value), 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 && 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", function() { + var p; + if (!this.__transition__ && (p = this.parentNode)) p.removeChild(this); + }); +}; +d3_transitionPrototype.delay = function(value) { + var groups = this; + return groups.each(typeof value === "function" + ? function(d, i, j) { groups[j][i].delay = +value.apply(this, arguments); } + : (value = +value, function(d, i, j) { groups[j][i].delay = value; })); +}; +d3_transitionPrototype.duration = function(value) { + var groups = this; + return groups.each(typeof value === "function" + ? function(d, i, j) { groups[j][i].duration = +value.apply(this, arguments); } + : (value = +value, function(d, i, j) { groups[j][i].duration = value; })); +}; +function d3_transition_each(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) callback.call(node = node.node, node.__data__, i, j); + } + } + return this; +} +d3_transitionPrototype.transition = function() { + return this.select(d3_this); +}; +var d3_timer_queue = null, + d3_timer_interval, // is an interval (or frame) active? + d3_timer_timeout; // is a timeout active? + +// The timer will continue to fire until callback returns true. +d3.timer = function(callback, delay, then) { + var found = false, + t0, + t1 = d3_timer_queue; + + if (arguments.length < 3) { + if (arguments.length < 2) delay = 0; + else if (!isFinite(delay)) return; + then = Date.now(); + } + + // See if the callback's already in the queue. + while (t1) { + if (t1.callback === callback) { + t1.then = then; + t1.delay = delay; + found = true; + break; + } + t0 = t1; + t1 = t1.next; + } + + // Otherwise, add the callback to the queue. + if (!found) d3_timer_queue = { + callback: callback, + then: then, + delay: delay, + next: d3_timer_queue + }; + + // Start animatin'! + if (!d3_timer_interval) { + d3_timer_timeout = clearTimeout(d3_timer_timeout); + d3_timer_interval = 1; + d3_timer_frame(d3_timer_step); + } +} + +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); + } +} + +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(); +}; + +// Flush after callbacks, to avoid concurrent queue modification. +function d3_timer_flush() { + var t0 = null, + t1 = d3_timer_queue, + then = Infinity; + while (t1) { + if (t1.flush) { + 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; +} + +var d3_timer_frame = window.requestAnimationFrame + || window.webkitRequestAnimationFrame + || window.mozRequestAnimationFrame + || window.oRequestAnimationFrame + || window.msRequestAnimationFrame + || function(callback) { setTimeout(callback, 17); }; +function d3_noop() {} +d3.scale = {}; + +function d3_scaleExtent(domain) { + var start = domain[0], stop = domain[domain.length - 1]; + return start < stop ? [start, stop] : [stop, start]; +} +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; + } + + nice = nice(x1 - x0); + domain[i0] = nice.floor(x0); + domain[i1] = nice.ceil(x1); + return domain; +} + +function d3_scale_niceDefault() { + return Math; +} +d3.scale.linear = function() { + return d3_scale_linear([0, 1], [0, 1], d3.interpolate, false); +}; + +function d3_scale_linear(domain, range, interpolate, clamp) { + var output, + input; + + function rescale() { + var linear = domain.length == 2 ? d3_scale_bilinear : d3_scale_polylinear, + 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); + } + + // Note: requires range is coercible to number! + 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) { + scale.range = d3.rebind(scale, linear.range); + scale.rangeRound = d3.rebind(scale, linear.rangeRound); + scale.interpolate = d3.rebind(scale, linear.interpolate); + scale.clamp = d3.rebind(scale, linear.clamp); + return scale; +} + +function d3_scale_linearNice(dx) { + dx = Math.pow(10, Math.round(Math.log(dx) / Math.LN10) - 1); + return { + floor: function(x) { return Math.floor(x / dx) * dx; }, + ceil: function(x) { return Math.ceil(x / dx) * dx; } + }; +} + +// TODO Dates? Ugh. +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; + + // Filter ticks to get closer to the desired count. + if (err <= .15) step *= 10; + else if (err <= .35) step *= 5; + else if (err <= .75) step *= 2; + + // Round start and stop values to step interval. + extent[0] = Math.ceil(extent[0] / step) * step; + extent[1] = Math.floor(extent[1] / step) * step + step * .5; // inclusive + 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, + n = domain.length; + + while (++j < n) { + 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, domain.length - 1) - 1; + return i[j](u[j](x)); + }; +} +d3.scale.log = function() { + return d3_scale_log(d3.scale.linear(), d3_scale_logp); +}; + +function d3_scale_log(linear, log) { + var pow = log.pow; + + function scale(x) { + return linear(log(x)); + } + + 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 = Math.round(pow(extent[0])), + v = Math.round(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++) {} // strip small values + for (j = ticks.length; ticks[j - 1] > v; j--) {} // strip big values + 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 = n / scale.ticks().length, + f = log === d3_scale_logn ? (e = -1e-15, Math.floor) : (e = 1e-15, 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); +}; + +var d3_scale_logFormat = d3.format("e"); + +function d3_scale_logp(x) { + return Math.log(x) / Math.LN10; +} + +function d3_scale_logn(x) { + return -Math.log(-x) / Math.LN10; +} + +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); +}; + +function d3_scale_pow(linear, exponent) { + var powp = d3_scale_powPow(exponent), + powb = d3_scale_powPow(1 / exponent); + + function scale(x) { + return linear(powp(x)); + } + + 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); + }; +} +d3.scale.sqrt = function() { + return d3.scale.pow().exponent(.5); +}; +d3.scale.ordinal = function() { + return d3_scale_ordinal([], {t: "range", x: []}); +}; + +function d3_scale_ordinal(domain, ranger) { + var index, + range, + rangeBand; + + function scale(x) { + return range[((index[x] || (index[x] = domain.push(x))) - 1) % range.length]; + } + + scale.domain = function(x) { + if (!arguments.length) return domain; + domain = []; + index = {}; + var i = -1, n = x.length, xi; + while (++i < n) if (!index[xi = x[i]]) index[xi] = domain.push(xi); + return scale[ranger.t](ranger.x, ranger.p); + }; + + scale.range = function(x) { + if (!arguments.length) return range; + range = x; + rangeBand = 0; + ranger = {t: "range", x: x}; + return scale; + }; + + scale.rangePoints = function(x, padding) { + if (arguments.length < 2) padding = 0; + var start = x[0], + stop = x[1], + step = (stop - start) / (domain.length - 1 + padding); + range = domain.length < 2 ? [(start + stop) / 2] : d3.range(start + step * padding / 2, stop + step / 2, step); + rangeBand = 0; + ranger = {t: "rangePoints", x: x, p: padding}; + return scale; + }; + + scale.rangeBands = function(x, padding) { + if (arguments.length < 2) padding = 0; + var start = x[0], + stop = x[1], + step = (stop - start) / (domain.length + padding); + range = d3.range(start + step * padding, stop, step); + rangeBand = step * (1 - padding); + ranger = {t: "rangeBands", x: x, p: padding}; + return scale; + }; + + scale.rangeRoundBands = function(x, padding) { + if (arguments.length < 2) padding = 0; + var start = x[0], + stop = x[1], + step = Math.floor((stop - start) / (domain.length + padding)), + err = stop - start - (domain.length - padding) * step; + range = d3.range(start + Math.round(err / 2), stop, step); + rangeBand = Math.round(step * (1 - padding)); + ranger = {t: "rangeRoundBands", x: x, p: padding}; + return scale; + }; + + scale.rangeBand = function() { + return rangeBand; + }; + + scale.copy = function() { + return d3_scale_ordinal(domain, ranger); + }; + + return scale.domain(domain); +}; +/* + * This product includes color specifications and designs developed by Cynthia + * Brewer (http://colorbrewer.org/). See lib/colorbrewer for more information. + */ + +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([], []); +}; + +function d3_scale_quantile(domain, range) { + var thresholds; + + 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)]; + } + + 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); // copy on write! + }; + + return rescale(); +}; +d3.scale.quantize = function() { + return d3_scale_quantize(0, 1, [0, 1]); +}; + +function d3_scale_quantize(x0, x1, range) { + var kx, i; + + 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; + } + + 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); // copy on write + }; + + return rescale(); +}; +d3.svg = {}; +d3.svg.arc = function() { + var innerRadius = d3_svg_arcInnerRadius, + outerRadius = d3_svg_arcOuterRadius, + startAngle = d3_svg_arcStartAngle, + endAngle = d3_svg_arcEndAngle; + + 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"); + } + + 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; + +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) { + var x = d3_svg_lineX, + y = d3_svg_lineY, + interpolate = "linear", + interpolator = d3_svg_lineInterpolators[interpolate], + tension = .7; + + function line(d) { + return d.length < 1 ? null : "M" + interpolator(projection(d3_svg_linePoints(this, d, x, y)), tension); + } + + line.x = function(v) { + if (!arguments.length) return x; + x = v; + return line; + }; + + line.y = function(v) { + if (!arguments.length) return y; + y = v; + return line; + }; + + line.interpolate = function(v) { + if (!arguments.length) return interpolate; + interpolator = d3_svg_lineInterpolators[interpolate = v]; + return line; + }; + + line.tension = function(v) { + if (!arguments.length) return tension; + tension = v; + return line; + }; + + return line; +} + +d3.svg.line = function() { + return d3_svg_line(Object); +}; + +// Converts the specified array of data into an array of points +// (x-y tuples), by evaluating the specified `x` and `y` functions on each +// data point. The `this` context of the evaluated functions is the specified +// "self" object; each function is passed the current datum and index. +function d3_svg_linePoints(self, d, x, y) { + var points = [], + i = -1, + n = d.length, + fx = typeof x === "function", + fy = typeof y === "function", + value; + if (fx && fy) { + while (++i < n) points.push([ + x.call(self, value = d[i], i), + y.call(self, value, i) + ]); + } else if (fx) { + while (++i < n) points.push([x.call(self, d[i], i), y]); + } else if (fy) { + while (++i < n) points.push([x, y.call(self, d[i], i)]); + } else { + while (++i < n) points.push([x, y]); + } + return points; +} + +// The default `x` property, which references d[0]. +function d3_svg_lineX(d) { + return d[0]; +} + +// The default `y` property, which references d[1]. +function d3_svg_lineY(d) { + return d[1]; +} + +// The various interpolators supported by the `line` class. +var d3_svg_lineInterpolators = { + "linear": d3_svg_lineLinear, + "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 +}; + +// Linear interpolation; generates "L" commands. +function d3_svg_lineLinear(points) { + var i = 0, + n = points.length, + p = points[0], + path = [p[0], ",", p[1]]; + while (++i < n) path.push("L", (p = points[i])[0], ",", p[1]); + return path.join(""); +} + +// Step interpolation; generates "H" and "V" commands. +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(""); +} + +// Step interpolation; generates "H" and "V" commands. +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(""); +} + +// Open cardinal spline interpolation; generates "C" commands. +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)); +} + +// Closed cardinal spline interpolation; generates "C" commands. +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)); +} + +// Cardinal spline interpolation; generates "C" commands. +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)); +} + +// Hermite spline construction; generates "C" commands. +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; +} + +// Generates tangents for a cardinal spline. +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; +} + +// B-spline interpolation; generates "C" commands. +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(""); +} + +// Open B-spline interpolation; generates "C" commands. +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(""); +} + +// Closed B-spline interpolation; generates "C" commands. +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, + 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); +} + +// Returns the dot product of the given four-element vectors. +function d3_svg_lineDot4(a, b) { + return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3]; +} + +// Matrix to transform basis (b-spline) control points to bezier +// control points. Derived from FvD 11.2.8. +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]; + +// Pushes a "C" Bézier curve onto the specified path array, given the +// two specified four-element arrays which define the control points. +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)); +} + +// Computes the slope from points p0 to p1. +function d3_svg_lineSlope(p0, p1) { + return (p1[1] - p0[1]) / (p1[0] - p0[0]); +} + +// Compute three-point differences for the given points. +// http://en.wikipedia.org/wiki/Cubic_Hermite_spline#Finite_difference +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])); + } + m[i] = d; + return m; +} + +// Interpolates the given points using Fritsch-Carlson Monotone cubic Hermite +// interpolation. Returns an array of tangent vectors. For details, see +// http://en.wikipedia.org/wiki/Monotone_cubic_interpolation +function d3_svg_lineMonotoneTangents(points) { + var tangents = [], + d, + a, + b, + s, + m = d3_svg_lineFiniteDifferences(points), + i = -1, + j = points.length - 1; + + // The first two steps are done by computing finite-differences: + // 1. Compute the slopes of the secant lines between successive points. + // 2. Initialize the tangents at every point as the average of the secants. + + // Then, for each segment… + while (++i < j) { + d = d3_svg_lineSlope(points[i], points[i + 1]); + + // 3. If two successive yk = y{k + 1} are equal (i.e., d is zero), then set + // mk = m{k + 1} = 0 as the spline connecting these points must be flat to + // preserve monotonicity. Ignore step 4 and 5 for those k. + + if (Math.abs(d) < 1e-6) { + m[i] = m[i + 1] = 0; + } else { + // 4. Let ak = mk / dk and bk = m{k + 1} / dk. + a = m[i] / d; + b = m[i + 1] / d; + + // 5. Prevent overshoot and ensure monotonicity by restricting the + // magnitude of vector <ak, bk> to a circle of radius 3. + s = a * a + b * b; + if (s > 9) { + s = d * 3 / Math.sqrt(s); + m[i] = s * a; + m[i + 1] = s * b; + } + } + } + + // Compute the normalized tangent vector from the slopes. Note that if x is + // not monotonic, it's possible that the slope will be infinite, so we protect + // against NaN by setting the coordinate to zero. + 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)); +} +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; +}; + +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) { + var x0 = d3_svg_lineX, + x1 = d3_svg_lineX, + y0 = 0, + y1 = d3_svg_lineY, + interpolate = "linear", + interpolator = d3_svg_lineInterpolators[interpolate], + tension = .7; + + function area(d) { + if (d.length < 1) return null; + var points0 = d3_svg_linePoints(this, d, x0, y0), + points1 = d3_svg_linePoints(this, d, x0 === x1 ? d3_svg_areaX(points0) : x1, y0 === y1 ? d3_svg_areaY(points0) : y1); + return "M" + interpolator(projection(points1), tension) + + "L" + interpolator(projection(points0.reverse()), tension) + + "Z"; + } + + area.x = function(x) { + if (!arguments.length) return x1; + x0 = x1 = x; + return area; + }; + + area.x0 = function(x) { + if (!arguments.length) return x0; + x0 = x; + return area; + }; + + area.x1 = function(x) { + if (!arguments.length) return x1; + x1 = x; + return area; + }; + + area.y = function(y) { + if (!arguments.length) return y1; + y0 = y1 = y; + return area; + }; + + area.y0 = function(y) { + if (!arguments.length) return y0; + y0 = y; + return area; + }; + + area.y1 = function(y) { + if (!arguments.length) return y1; + y1 = y; + return area; + }; + + area.interpolate = function(x) { + if (!arguments.length) return interpolate; + interpolator = d3_svg_lineInterpolators[interpolate = x]; + return area; + }; + + area.tension = function(x) { + if (!arguments.length) return tension; + tension = x; + return area; + }; + + return area; +} + +d3.svg.area = function() { + return d3_svg_area(Object); +}; + +function d3_svg_areaX(points) { + return function(d, i) { + return points[i][0]; + }; +} + +function d3_svg_areaY(points) { + return function(d, i) { + return points[i][1]; + }; +} +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() { + var source = d3_svg_chordSource, + target = d3_svg_chordTarget, + radius = d3_svg_chordRadius, + startAngle = d3_svg_arcStartAngle, + endAngle = d3_svg_arcEndAngle; + + // TODO Allow control point to be customized. + + 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) + (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) + + 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) { + return "A" + r + "," + r + " 0 0,1 " + p; + } + + function curve(r0, p0, r1, p1) { + return "Q 0,0 " + p1; + } + + 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; +}; + +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; +} +d3.svg.diagonal = function() { + var source = d3_svg_chordSource, + target = d3_svg_chordTarget, + projection = d3_svg_diagonalProjection; + + 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]; + } + + 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; +}; + +function d3_svg_diagonalProjection(d) { + return [d.x, d.y]; +} +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; +}; + +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)]; + }; +} +d3.svg.mouse = function(container) { + return d3_svg_mousePoint(container, d3.event); +}; + +// https://bugs.webkit.org/show_bug.cgi?id=44083 +var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0; + +function d3_svg_mousePoint(container, e) { + var point = (container.ownerSVGElement || container).createSVGPoint(); + if ((d3_mouse_bug44083 < 0) && (window.scrollX || window.scrollY)) { + var svg = d3.select(document.body) + .append("svg: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]; +}; +d3.svg.touches = function(container) { + var touches = d3.event.touches; + return touches ? d3_array(touches).map(function(touch) { + var point = d3_svg_mousePoint(container, touch); + point.identifier = touch.identifier; + return point; + }) : []; +}; +d3.svg.symbol = function() { + var type = d3_svg_symbolType, + size = d3_svg_symbolSize; + + function symbol(d, i) { + return (d3_svg_symbols[type.call(this, d, i)] + || d3_svg_symbols.circle) + (size.call(this, d, i)); + } + + symbol.type = function(x) { + if (!arguments.length) return type; + type = d3.functor(x); + return symbol; + }; + + // size of symbol in square pixels + symbol.size = function(x) { + if (!arguments.length) return size; + size = d3.functor(x); + return symbol; + }; + + return symbol; +}; + +function d3_svg_symbolSize() { + return 64; +} + +function d3_svg_symbolType() { + return "circle"; +} + +// TODO cross-diagonal? +var d3_svg_symbols = { + "circle": function(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"; + }, + "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.keys(d3_svg_symbols); + +var d3_svg_symbolSqrt3 = Math.sqrt(3), + d3_svg_symbolTan30 = Math.tan(30 * Math.PI / 180); +d3.svg.axis = function() { + var scale = d3.scale.linear(), + orient = "bottom", + tickMajorSize = 6, + tickMinorSize = 6, + tickEndSize = 6, + tickPadding = 3, + tickArguments_ = [10], + tickFormat_, + tickSubdivide = 0; + + function axis(selection) { + selection.each(function(d, i, j) { + var g = d3.select(this); + + // Ticks. + var ticks = scale.ticks.apply(scale, tickArguments_), + tickFormat = tickFormat_ == null ? scale.tickFormat.apply(scale, tickArguments_) : tickFormat_; + + // Minor ticks. + var subticks = d3_svg_axisSubdivide(scale, ticks, tickSubdivide), + subtick = g.selectAll(".minor").data(subticks, String), + subtickEnter = subtick.enter().insert("svg:line", "g").attr("class", "tick minor").style("opacity", 1e-6), + subtickExit = transition(subtick.exit()).style("opacity", 1e-6).remove(), + subtickUpdate = transition(subtick).style("opacity", 1); + + // Major ticks. + var tick = g.selectAll("g").data(ticks, String), + tickEnter = tick.enter().insert("svg:g", "path").style("opacity", 1e-6), + tickExit = transition(tick.exit()).style("opacity", 1e-6).remove(), + tickUpdate = transition(tick).style("opacity", 1), + tickTransform; + + // Domain. + var range = d3_scaleExtent(scale.range()), + path = g.selectAll(".domain").data([0]), + pathEnter = path.enter().append("svg:path").attr("class", "domain"), + pathUpdate = transition(path); + + // Stash the new scale and grab the old scale. + var scale0 = this.__chart__ || scale; + this.__chart__ = scale.copy(); + + tickEnter.append("svg:line").attr("class", "tick"); + tickEnter.append("svg:text"); + tickUpdate.select("text").text(tickFormat); + + switch (orient) { + case "bottom": { + tickTransform = d3_svg_axisX; + subtickUpdate.attr("y2", tickMinorSize); + tickEnter.select("text").attr("dy", ".71em").attr("text-anchor", "middle"); + tickUpdate.select("line").attr("y2", tickMajorSize); + tickUpdate.select("text").attr("y", Math.max(tickMajorSize, 0) + tickPadding); + pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize); + break; + } + case "top": { + tickTransform = d3_svg_axisX; + subtickUpdate.attr("y2", -tickMinorSize); + tickEnter.select("text").attr("text-anchor", "middle"); + tickUpdate.select("line").attr("y2", -tickMajorSize); + tickUpdate.select("text").attr("y", -(Math.max(tickMajorSize, 0) + tickPadding)); + pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize); + break; + } + case "left": { + tickTransform = d3_svg_axisY; + subtickUpdate.attr("x2", -tickMinorSize); + tickEnter.select("text").attr("dy", ".32em").attr("text-anchor", "end"); + tickUpdate.select("line").attr("x2", -tickMajorSize); + tickUpdate.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)); + pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize); + break; + } + case "right": { + tickTransform = d3_svg_axisY; + subtickUpdate.attr("x2", tickMinorSize); + tickEnter.select("text").attr("dy", ".32em"); + tickUpdate.select("line").attr("x2", tickMajorSize); + tickUpdate.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding); + pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize); + break; + } + } + + tickEnter.call(tickTransform, scale0); + tickUpdate.call(tickTransform, scale); + tickExit.call(tickTransform, scale); + + subtickEnter.call(tickTransform, scale0); + subtickUpdate.call(tickTransform, scale); + subtickExit.call(tickTransform, scale); + + function transition(o) { + return selection.delay ? o.transition() + .delay(selection[j][i].delay) + .duration(selection[j][i].duration) + .ease(selection.ease()) : o; + } + }); + } + + 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.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; +}; + +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; +} +d3.behavior = {}; +d3.behavior.drag = function() { + var event = d3.dispatch("drag", "dragstart", "dragend"); + + function drag() { + this + .on("mousedown.drag", mousedown) + .on("touchstart.drag", mousedown); + + d3.select(window) + .on("mousemove.drag", d3_behavior_dragMove) + .on("touchmove.drag", d3_behavior_dragMove) + .on("mouseup.drag", d3_behavior_dragUp, true) + .on("touchend.drag", d3_behavior_dragUp, true) + .on("click.drag", d3_behavior_dragClick, true); + } + + // snapshot the local context for subsequent dispatch + function start() { + d3_behavior_dragEvent = event; + d3_behavior_dragEventTarget = d3.event.target; + d3_behavior_dragOffset = d3_behavior_dragPoint((d3_behavior_dragTarget = this).parentNode); + d3_behavior_dragMoved = 0; + d3_behavior_dragArguments = arguments; + } + + function mousedown() { + start.apply(this, arguments); + d3_behavior_dragDispatch("dragstart"); + } + + drag.on = function(type, listener) { + event[type].add(listener); + return drag; + }; + + return drag; +}; + +var d3_behavior_dragEvent, + d3_behavior_dragEventTarget, + d3_behavior_dragTarget, + d3_behavior_dragArguments, + d3_behavior_dragOffset, + d3_behavior_dragMoved, + d3_behavior_dragStopClick; + +function d3_behavior_dragDispatch(type) { + var o = d3.event, p = d3_behavior_dragTarget.parentNode, dx = 0, dy = 0; + + if (p) { + p = d3_behavior_dragPoint(p); + dx = p[0] - d3_behavior_dragOffset[0]; + dy = p[1] - d3_behavior_dragOffset[1]; + d3_behavior_dragOffset = p; + d3_behavior_dragMoved |= dx | dy; + } + + try { + d3.event = {dx: dx, dy: dy}; + d3_behavior_dragEvent[type].dispatch.apply(d3_behavior_dragTarget, d3_behavior_dragArguments); + } finally { + d3.event = o; + } + + o.preventDefault(); +} + +function d3_behavior_dragPoint(container) { + return d3.event.touches + ? d3.svg.touches(container)[0] + : d3.svg.mouse(container); +} + +function d3_behavior_dragMove() { + if (!d3_behavior_dragTarget) return; + var parent = d3_behavior_dragTarget.parentNode; + + // O NOES! The drag element was removed from the DOM. + if (!parent) return d3_behavior_dragUp(); + + d3_behavior_dragDispatch("drag"); + d3_behavior_dragCancel(); +} + +function d3_behavior_dragUp() { + if (!d3_behavior_dragTarget) return; + d3_behavior_dragDispatch("dragend"); + d3_behavior_dragTarget = null; + + // If the node was moved, prevent the mouseup from propagating. + // Also prevent the subsequent click from propagating (e.g., for anchors). + if (d3_behavior_dragMoved && d3_behavior_dragEventTarget === d3.event.target) { + d3_behavior_dragStopClick = true; + d3_behavior_dragCancel(); + } +} + +function d3_behavior_dragClick() { + if (d3_behavior_dragStopClick && d3_behavior_dragEventTarget === d3.event.target) { + d3_behavior_dragCancel(); + d3_behavior_dragStopClick = false; + d3_behavior_dragEventTarget = null; + } +} + +function d3_behavior_dragCancel() { + d3.event.stopPropagation(); + d3.event.preventDefault(); +} +// TODO unbind zoom behavior? +// TODO unbind listener? +d3.behavior.zoom = function() { + var xyz = [0, 0, 0], + event = d3.dispatch("zoom"); + + function zoom() { + this + .on("mousedown.zoom", mousedown) + .on("mousewheel.zoom", mousewheel) + .on("DOMMouseScroll.zoom", mousewheel) + .on("dblclick.zoom", dblclick) + .on("touchstart.zoom", touchstart); + + d3.select(window) + .on("mousemove.zoom", d3_behavior_zoomMousemove) + .on("mouseup.zoom", d3_behavior_zoomMouseup) + .on("touchmove.zoom", d3_behavior_zoomTouchmove) + .on("touchend.zoom", d3_behavior_zoomTouchup) + .on("click.zoom", d3_behavior_zoomClick, true); + } + + // snapshot the local context for subsequent dispatch + function start() { + d3_behavior_zoomXyz = xyz; + d3_behavior_zoomDispatch = event.zoom.dispatch; + d3_behavior_zoomEventTarget = d3.event.target; + d3_behavior_zoomTarget = this; + d3_behavior_zoomArguments = arguments; + } + + function mousedown() { + start.apply(this, arguments); + d3_behavior_zoomPanning = d3_behavior_zoomLocation(d3.svg.mouse(d3_behavior_zoomTarget)); + d3_behavior_zoomMoved = false; + d3.event.preventDefault(); + window.focus(); + } + + // store starting mouse location + function mousewheel() { + start.apply(this, arguments); + if (!d3_behavior_zoomZooming) d3_behavior_zoomZooming = d3_behavior_zoomLocation(d3.svg.mouse(d3_behavior_zoomTarget)); + d3_behavior_zoomTo(d3_behavior_zoomDelta() + xyz[2], d3.svg.mouse(d3_behavior_zoomTarget), d3_behavior_zoomZooming); + } + + function dblclick() { + start.apply(this, arguments); + var mouse = d3.svg.mouse(d3_behavior_zoomTarget); + d3_behavior_zoomTo(d3.event.shiftKey ? Math.ceil(xyz[2] - 1) : Math.floor(xyz[2] + 1), mouse, d3_behavior_zoomLocation(mouse)); + } + + // doubletap detection + function touchstart() { + start.apply(this, arguments); + var touches = d3_behavior_zoomTouchup(), + touch, + now = Date.now(); + if ((touches.length === 1) && (now - d3_behavior_zoomLast < 300)) { + d3_behavior_zoomTo(1 + Math.floor(xyz[2]), touch = touches[0], d3_behavior_zoomLocations[touch.identifier]); + } + d3_behavior_zoomLast = now; + } + + zoom.on = function(type, listener) { + event[type].add(listener); + return zoom; + }; + + return zoom; +}; + +var d3_behavior_zoomDiv, + d3_behavior_zoomPanning, + d3_behavior_zoomZooming, + d3_behavior_zoomLocations = {}, // identifier -> location + d3_behavior_zoomLast = 0, + d3_behavior_zoomXyz, + d3_behavior_zoomDispatch, + d3_behavior_zoomEventTarget, + d3_behavior_zoomTarget, + d3_behavior_zoomArguments, + d3_behavior_zoomMoved, + d3_behavior_zoomStopClick; + +function d3_behavior_zoomLocation(point) { + return [ + point[0] - d3_behavior_zoomXyz[0], + point[1] - d3_behavior_zoomXyz[1], + d3_behavior_zoomXyz[2] + ]; +} + +// detect the pixels that would be scrolled by this wheel event +function d3_behavior_zoomDelta() { + + // mousewheel events are totally broken! + // https://bugs.webkit.org/show_bug.cgi?id=40441 + // not only that, but Chrome and Safari differ in re. to acceleration! + 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 = 1000; + d3_behavior_zoomDiv.dispatchEvent(e); + delta = 1000 - d3_behavior_zoomDiv.scrollTop; + } catch (error) { + delta = e.wheelDelta || (-e.detail * 5); + } + + return delta * .005; +} + +// Note: Since we don't rotate, it's possible for the touches to become +// slightly detached from their original positions. Thus, we recompute the +// touch points on touchend as well as touchstart! +function d3_behavior_zoomTouchup() { + var touches = d3.svg.touches(d3_behavior_zoomTarget), + i = -1, + n = touches.length, + touch; + while (++i < n) d3_behavior_zoomLocations[(touch = touches[i]).identifier] = d3_behavior_zoomLocation(touch); + return touches; +} + +function d3_behavior_zoomTouchmove() { + var touches = d3.svg.touches(d3_behavior_zoomTarget); + switch (touches.length) { + + // single-touch pan + case 1: { + var touch = touches[0]; + d3_behavior_zoomTo(d3_behavior_zoomXyz[2], touch, d3_behavior_zoomLocations[touch.identifier]); + break; + } + + // double-touch pan + zoom + case 2: { + var p0 = touches[0], + p1 = touches[1], + p2 = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2], + l0 = d3_behavior_zoomLocations[p0.identifier], + l1 = d3_behavior_zoomLocations[p1.identifier], + l2 = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2, l0[2]]; + d3_behavior_zoomTo(Math.log(d3.event.scale) / Math.LN2 + l0[2], p2, l2); + break; + } + } +} + +function d3_behavior_zoomMousemove() { + d3_behavior_zoomZooming = null; + if (d3_behavior_zoomPanning) { + d3_behavior_zoomMoved = true; + d3_behavior_zoomTo(d3_behavior_zoomXyz[2], d3.svg.mouse(d3_behavior_zoomTarget), d3_behavior_zoomPanning); + } +} + +function d3_behavior_zoomMouseup() { + if (d3_behavior_zoomPanning) { + if (d3_behavior_zoomMoved && d3_behavior_zoomEventTarget === d3.event.target) { + d3_behavior_zoomStopClick = true; + } + d3_behavior_zoomMousemove(); + d3_behavior_zoomPanning = null; + } +} + +function d3_behavior_zoomClick() { + if (d3_behavior_zoomStopClick && d3_behavior_zoomEventTarget === d3.event.target) { + d3.event.stopPropagation(); + d3.event.preventDefault(); + d3_behavior_zoomStopClick = false; + d3_behavior_zoomEventTarget = null; + } +} + +function d3_behavior_zoomTo(z, x0, x1) { + var K = Math.pow(2, (d3_behavior_zoomXyz[2] = z) - x1[2]), + x = d3_behavior_zoomXyz[0] = x0[0] - K * x1[0], + y = d3_behavior_zoomXyz[1] = x0[1] - K * x1[1], + o = d3.event, // Events can be reentrant (e.g., focus). + k = Math.pow(2, z); + + d3.event = { + scale: k, + translate: [x, y], + transform: function(sx, sy) { + if (sx) transform(sx, x); + if (sy) transform(sy, y); + } + }; + + function transform(scale, o) { + var domain = scale.__domain || (scale.__domain = scale.domain()), + range = scale.range().map(function(v) { return (v - o) / k; }); + scale.domain(domain).domain(range.map(scale.invert)); + } + + try { + d3_behavior_zoomDispatch.apply(d3_behavior_zoomTarget, d3_behavior_zoomArguments); + } finally { + d3.event = o; + } + + o.preventDefault(); +} +})(); diff --git a/media/d3.layout.js b/media/d3.layout.js new file mode 100644 index 00000000..bcfddc04 --- /dev/null +++ b/media/d3.layout.js @@ -0,0 +1,1883 @@ +(function(){d3.layout = {}; +// Implements hierarchical edge bundling using Holten's algorithm. For each +// input link, a path is computed that travels through the tree, up the parent +// hierarchy to the least common ancestor, and then back down to the destination +// node. Each path is simply an array of nodes. +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; + }; +}; + +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; +} +d3.layout.chord = function() { + var chord = {}, + chords, + groups, + matrix, + n, + padding = 0, + sortGroups, + sortSubgroups, + sortChords; + + function relayout() { + var subgroups = {}, + groupSums = [], + groupIndex = d3.range(n), + subgroupIndex = [], + k, + x, + x0, + i, + j; + + chords = []; + groups = []; + + // 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(d3.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 = (2 * Math.PI - padding * n) / k; + + // Compute the start and end angle for each group and subgroup. + x = 0, i = -1; while (++i < n) { + x0 = x, j = -1; while (++j < n) { + var di = groupIndex[i], + dj = subgroupIndex[i][j], + v = matrix[di][dj]; + subgroups[di + "-" + dj] = { + index: di, + subindex: dj, + startAngle: x, + endAngle: x += v * k, + value: v + }; + } + groups.push({ + index: di, + startAngle: x0, + endAngle: x, + value: (x - x0) / k + }); + x += padding; + } + + // Generate chords for each (non-empty) subgroup-subgroup link. + 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.target.value, b.target.value); + }); + } + + 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; +}; +// A rudimentary force layout using Gauss-Seidel. +d3.layout.force = function() { + var force = {}, + event = d3.dispatch("tick"), + 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; + + 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); + + /* Barnes-Hut criterion. */ + 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 tick() { + var n = nodes.length, + m = links.length, + q, + i, // current index + o, // current object + s, // current source + t, // current target + l, // current distance + k, // current force + x, // x-distance + y; // y-distance + + // gauss-seidel relaxation for links + 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; + } + } + + // apply gravity forces + 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; + } + } + + // compute quadtree center of mass and apply charge forces + 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)); + } + } + } + + // position verlet integration + 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.dispatch({type: "tick", alpha: alpha}); + + // simulated annealing, basically + return (alpha *= .99) < .005; + } + + force.on = function(type, listener) { + event[type].add(listener); + return force; + }; + + 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; + }; + + // For backwards-compatibility. + 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.start = function() { + 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; + } + } + + // initialize node position based on first neighbor + 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; + } + + // initialize neighbors lazily + 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]; + } + + return force.resume(); + }; + + force.resume = function() { + alpha = .1; + d3.timer(tick); + return force; + }; + + force.stop = function() { + alpha = 0; + return force; + }; + + // use `node.call(force.drag)` to make nodes draggable + force.drag = function() { + if (!drag) drag = d3.behavior.drag() + .on("dragstart", dragstart) + .on("drag", d3_layout_forceDrag) + .on("dragend", d3_layout_forceDragEnd); + + this.on("mouseover.force", d3_layout_forceDragOver) + .on("mouseout.force", d3_layout_forceDragOut) + .call(drag); + }; + + function dragstart(d) { + d3_layout_forceDragOver(d3_layout_forceDragNode = d); + d3_layout_forceDragForce = force; + } + + return force; +}; + +var d3_layout_forceDragForce, + d3_layout_forceDragNode; + +function d3_layout_forceDragOver(d) { + d.fixed |= 2; +} + +function d3_layout_forceDragOut(d) { + if (d !== d3_layout_forceDragNode) d.fixed &= 1; +} + +function d3_layout_forceDragEnd() { + d3_layout_forceDrag(); + d3_layout_forceDragNode.fixed &= 1; + d3_layout_forceDragForce = d3_layout_forceDragNode = null; +} + +function d3_layout_forceDrag() { + d3_layout_forceDragNode.px += d3.event.dx; + d3_layout_forceDragNode.py += d3.event.dy; + d3_layout_forceDragForce.resume(); // restart annealing +} + +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) { + // jitter internal nodes that are coincident + 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; +} +d3.layout.partition = function() { + var hierarchy = d3.layout.hierarchy(), + size = [1, 1]; // width, height + + 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) { + var i = -1, + n = children.length, + 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) { + var i = -1, + n = children.length; + 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; + } + + partition.size = function(x) { + if (!arguments.length) return size; + size = x; + return partition; + }; + + return d3_layout_hierarchyRebind(partition, hierarchy); +}; +d3.layout.pie = function() { + var value = Number, + sort = null, + startAngle = 0, + endAngle = 2 * Math.PI; + + function pie(data, i) { + + // Compute the start angle. + var a = +(typeof startAngle === "function" + ? startAngle.apply(this, arguments) + : startAngle); + + // Compute the angular range (end - start). + var k = (typeof endAngle === "function" + ? endAngle.apply(this, arguments) + : endAngle) - startAngle; + + // Optionally sort the data. + var index = d3.range(data.length); + if (sort != null) index.sort(function(i, j) { + return sort(data[i], data[j]); + }); + + // Compute the numeric values for each data element. + var values = data.map(value); + + // Convert k into a scale factor from value to angle, using the sum. + k /= values.reduce(function(p, d) { return p + d; }, 0); + + // Compute the arcs! + var arcs = index.map(function(i) { + return { + data: data[i], + value: d = values[i], + startAngle: a, + endAngle: a += d * k + }; + }); + + // Return the arcs in the original data's order. + return data.map(function(d, i) { + return arcs[index[i]]; + }); + } + + /** + * Specifies the value function *x*, which returns a nonnegative numeric value + * for each datum. The default value function is `Number`. The value function + * is passed two arguments: the current datum and the current index. + */ + pie.value = function(x) { + if (!arguments.length) return value; + value = x; + return pie; + }; + + /** + * Specifies a sort comparison operator *x*. The comparator is passed two data + * elements from the data array, a and b; it returns a negative value if a is + * less than b, a positive value if a is greater than b, and zero if a equals + * b. + */ + pie.sort = function(x) { + if (!arguments.length) return sort; + sort = x; + return pie; + }; + + /** + * Specifies the overall start angle of the pie chart. Defaults to 0. The + * start angle can be specified either as a constant or as a function; in the + * case of a function, it is evaluated once per array (as opposed to per + * element). + */ + pie.startAngle = function(x) { + if (!arguments.length) return startAngle; + startAngle = x; + return pie; + }; + + /** + * Specifies the overall end angle of the pie chart. Defaults to 2π. The + * end angle can be specified either as a constant or as a function; in the + * case of a function, it is evaluated once per array (as opposed to per + * element). + */ + pie.endAngle = function(x) { + if (!arguments.length) return endAngle; + endAngle = x; + return pie; + }; + + return pie; +}; +// data is two-dimensional array of x,y; we populate y0 +d3.layout.stack = function() { + var values = Object, + order = d3_layout_stackOrders["default"], + offset = d3_layout_stackOffsets["zero"], + out = d3_layout_stackOut, + x = d3_layout_stackX, + y = d3_layout_stackY; + + function stack(data, index) { + + // Convert series to canonical two-dimensional representation. + var series = data.map(function(d, i) { + return values.call(stack, d, i); + }); + + // Convert each series to canonical [[x,y]] representation. + var points = series.map(function(d, i) { + return d.map(function(v, i) { + return [x.call(stack, v, i), y.call(stack, v, i)]; + }); + }); + + // Compute the order of series, and permute them. + var orders = order.call(stack, points, index); + series = d3.permute(series, orders); + points = d3.permute(points, orders); + + // Compute the baseline… + var offsets = offset.call(stack, points, index); + + // And propagate it to other series. + 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; + } + + 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[x]; + return stack; + }; + + stack.offset = function(x) { + if (!arguments.length) return offset; + offset = typeof x === "function" ? x : d3_layout_stackOffsets[x]; + 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; +} + +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; +} + +var d3_layout_stackOrders = { + + "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": function(data) { + return d3.range(data.length); + } + +}; + +var d3_layout_stackOffsets = { + + "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": function(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]; +} +d3.layout.histogram = function() { + var frequency = true, + valuer = Number, + ranger = d3_layout_histogramRange, + binner = d3_layout_histogramBinSturges; + + 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; + + // Initialize the bins. + while (++i < m) { + bin = bins[i] = []; + bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]); + bin.y = 0; + } + + // Fill the bins, ignoring values outside the range. + 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; + } + + // Specifies how to extract a value from the associated data. The default + // value function is `Number`, which is equivalent to the identity function. + histogram.value = function(x) { + if (!arguments.length) return valuer; + valuer = x; + return histogram; + }; + + // Specifies the range of the histogram. Values outside the specified range + // will be ignored. The argument `x` may be specified either as a two-element + // array representing the minimum and maximum value of the range, or as a + // function that returns the range given the array of values and the current + // index `i`. The default range is the extent (minimum and maximum) of the + // values. + histogram.range = function(x) { + if (!arguments.length) return ranger; + ranger = d3.functor(x); + return histogram; + }; + + // Specifies how to bin values in the histogram. The argument `x` may be + // specified as a number, in which case the range of values will be split + // uniformly into the given number of bins. Or, `x` may be an array of + // threshold values, defining the bins; the specified array must contain the + // rightmost (upper) value, thus specifying n + 1 values for n bins. Or, `x` + // may be a function which is evaluated, being passed the range, the array of + // values, and the current index `i`, returning an array of thresholds. The + // default bin function will divide the values into uniform bins using + // Sturges' formula. + 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; + }; + + // Specifies whether the histogram's `y` value is a count (frequency) or a + // probability (density). The default value is true. + histogram.frequency = function(x) { + if (!arguments.length) return frequency; + frequency = !!x; + return histogram; + }; + + return histogram; +}; + +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)]; +} +d3.layout.hierarchy = function() { + var sort = d3_layout_hierarchySort, + children = d3_layout_hierarchyChildren, + value = d3_layout_hierarchyValue; + + // Recursively compute the node depth and value. + // Also converts the data representation into a standard hierarchy structure. + 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; + 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; + } + + // Recursively re-evaluates the node value. + 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; + } + + 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; + }; + + // Re-evaluates the `value` property for the specified hierarchy. + hierarchy.revalue = function(root) { + revalue(root, 0); + return root; + }; + + return hierarchy; +}; + +// A method assignment helper for hierarchy subclasses. +function d3_layout_hierarchyRebind(object, hierarchy) { + object.sort = d3.rebind(object, hierarchy.sort); + object.children = d3.rebind(object, hierarchy.children); + object.links = d3_layout_hierarchyLinks; + object.value = d3.rebind(object, hierarchy.value); + + // If the new API is used, enabling inlining. + 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; +} + +// Returns an array source+target objects for the specified nodes. +function d3_layout_hierarchyLinks(nodes) { + return d3.merge(nodes.map(function(parent) { + return (parent.children || []).map(function(child) { + return {source: parent, target: child}; + }); + })); +} + +// For backwards-compatibility, don't enable inlining by default. +var d3_layout_hierarchyInline = false; +d3.layout.pack = function() { + var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), + size = [1, 1]; + + function pack(d, i) { + var nodes = hierarchy.call(this, d, i), + root = nodes[0]; + + // Recursively compute the layout. + root.x = 0; + root.y = 0; + d3_layout_packTree(root); + + // Scale the layout to fit the requested size. + var w = size[0], + h = size[1], + k = 1 / Math.max(2 * root.r / w, 2 * root.r / h); + d3_layout_packTransform(root, w / 2, h / 2, k); + + return nodes; + } + + pack.size = function(x) { + if (!arguments.length) return size; + size = x; + return pack; + }; + + return d3_layout_hierarchyRebind(pack, hierarchy); +}; + +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; // within epsilon +} + +function d3_layout_packCircle(nodes) { + var xMin = Infinity, + xMax = -Infinity, + yMin = Infinity, + yMax = -Infinity, + n = nodes.length, + a, b, c, j, k; + + 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); + } + + // Create node links. + nodes.forEach(d3_layout_packLink); + + // Create first node. + a = nodes[0]; + a.x = -a.r; + a.y = 0; + bound(a); + + // Create second node. + if (n > 1) { + b = nodes[1]; + b.x = b.r; + b.y = 0; + bound(b); + + // Create third node and build chain. + 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; + + // Now iterate through the rest. + for (var i = 3; i < n; i++) { + d3_layout_packPlace(a, b, c = nodes[i]); + + // Search for the closest intersection. + 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)) { + if (s2 < s1) { + isect = -1; + j = k; + } + break; + } + } + } + + // Update node chain. + if (isect == 0) { + d3_layout_packInsert(a, c); + b = c; + bound(c); + } else if (isect > 0) { + d3_layout_packSplice(a, j); + b = j; + i--; + } else { // isect < 0 + d3_layout_packSplice(j, b); + a = j; + i--; + } + } + } + } + + // Re-center the circles and return the encompassing radius. + var cx = (xMin + xMax) / 2, + cy = (yMin + yMax) / 2, + cr = 0; + for (var i = 0; i < n; i++) { + var node = nodes[i]; + node.x -= cx; + node.y -= cy; + cr = Math.max(cr, node.r + Math.sqrt(node.x * node.x + node.y * node.y)); + } + + // Remove node links. + nodes.forEach(d3_layout_packUnlink); + + return cr; +} + +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_packTree(node) { + var children = node.children; + if (children && children.length) { + children.forEach(d3_layout_packTree); + node.r = d3_layout_packCircle(children); + } else { + node.r = Math.sqrt(node.value); + } +} + +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 = Math.sqrt(dx * dx + dy * dy), + cos = Math.max(-1, Math.min(1, (db * db + dc * dc - da * da) / (2 * db * dc))), + theta = Math.acos(cos), + x = cos * (db /= dc), + y = Math.sin(theta) * db; + 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; + } +} +// Implements a hierarchical layout using the cluster (or dendogram) algorithm. +d3.layout.cluster = function() { + var hierarchy = d3.layout.hierarchy().sort(null).value(null), + separation = d3_layout_treeSeparation, + size = [1, 1]; // width, height + + function cluster(d, i) { + var nodes = hierarchy.call(this, d, i), + root = nodes[0], + previousNode, + x = 0, + kx, + ky; + + // First walk, computing the initial x & y values. + 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; + } + }); + + // Compute the left-most, right-most, and depth-most nodes for extents. + 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; + + // Second walk, normalizing x & y to the desired size. + d3_layout_treeVisitAfter(root, function(node) { + node.x = (node.x - x0) / (x1 - x0) * size[0]; + node.y = (1 - node.y / root.y) * size[1]; + }); + + return nodes; + } + + 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); +}; + +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; +} +// Node-link tree diagram using the Reingold-Tilford "tidy" algorithm +d3.layout.tree = function() { + var hierarchy = d3.layout.hierarchy().sort(null).value(null), + separation = d3_layout_treeSeparation, + size = [1, 1]; // width, height + + function tree(d, i) { + var nodes = hierarchy.call(this, d, i), + root = nodes[0]; + + 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) { + var i = -1, + n = children.length; + 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; + } + + // Initialize temporary layout variables. + 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 + }; + }); + + // Compute the layout using Buchheim et al.'s algorithm. + firstWalk(root); + secondWalk(root, -root._tree.prelim); + + // Compute the left-most, right-most, and depth-most nodes for extents. + 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; + + // Clear temporary layout variables; transform x and y. + 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; + } + + 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); +}; + +function d3_layout_treeSeparation(a, b) { + return a.parent == b.parent ? 1 : 2; +} + +// function d3_layout_treeSeparationRadial(a, b) { +// return (a.parent == b.parent ? 1 : 2) / a.depth; +// } + +function d3_layout_treeLeft(node) { + return node.children ? node.children[0] : node._tree.thread; +} + +function d3_layout_treeRight(node) { + return node.children ? node.children[node.children.length - 1] : node._tree.thread; +} + +function d3_layout_treeSearch(node, compare) { + var children = node.children; + if (children) { + var child, + n = children.length, + 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) { + var child, + previousChild = null, + i = -1, + n = children.length; + 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; +} +// Squarified Treemaps by Mark Bruls, Kees Huizing, and Jarke J. van Wijk +// Modified to support a target aspect ratio by Jeff Heer +d3.layout.treemap = function() { + var hierarchy = d3.layout.hierarchy(), + round = Math.round, + size = [1, 1], // width, height + padding = null, + pad = d3_layout_treemapPadNull, + sticky = false, + stickies, + ratio = 0.5 * (1 + Math.sqrt(5)); // golden ratio + + // Compute the area for each child based on value & scale. + 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; + } + } + + // Recursively arranges the specified node's children into squarified rows. + function squarify(node) { + if (!node.children) return; + var rect = pad(node), + row = [], + children = node.children.slice(), // copy-on-write + child, + best = Infinity, // the best row score so far + score, // the current row score + u = Math.min(rect.dx, rect.dy), // initial orientation + n; + scale(children, rect.dx * rect.dy / node.value); + row.area = 0; + while ((n = children.length) > 0) { + row.push(child = children[n - 1]); + row.area += child.area; + if ((score = worst(row, u)) <= best) { // continue with this orientation + children.pop(); + best = score; + } else { // abort, and try a different orientation + 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; + } + node.children.forEach(squarify); + } + + // Recursively resizes the specified node's children into existing rows. + // Preserves the existing layout! + function stickify(node) { + if (!node.children) return; + var rect = pad(node), + children = node.children.slice(), // copy-on-write + child, + row = []; + scale(children, rect.dx * rect.dy / node.value); + row.area = 0; + while (child = children.pop()) { + row.push(child); + row.area += child.area; + if (child.z != null) { + position(row, child.z ? rect.dx : rect.dy, rect, !children.length); + row.length = row.area = 0; + } + } + node.children.forEach(stickify); + } + + // Computes the score for the specified row, as the worst aspect ratio. + 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; + } + + // Positions the specified row of nodes. Modifies `rect`. + 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) { // horizontal subdivision + if (flush || v > rect.dy) v = v ? rect.dy : 0; // over+underflow + while (++i < n) { + o = row[i]; + o.x = x; + o.y = y; + o.dy = v; + x += o.dx = v ? round(o.area / v) : 0; + } + o.z = true; + o.dx += rect.x + rect.dx - x; // rounding error + rect.y += v; + rect.dy -= v; + } else { // vertical subdivision + if (flush || v > rect.dx) v = v ? rect.dx : 0; // over+underflow + while (++i < n) { + o = row[i]; + o.x = x; + o.y = y; + o.dx = v; + y += o.dy = v ? round(o.area / v) : 0; + } + o.z = false; + o.dy += rect.y + rect.dy - y; // rounding error + 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; + } + + treemap.size = function(x) { + if (!arguments.length) return size; + size = x; + return treemap; + }; + + treemap.padding = function(x) { + if (!arguments.length) return padding; + + 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); + } + + 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); +}; + +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}; +} +})(); diff --git a/media/d3.layout.min.js b/media/d3.layout.min.js new file mode 100644 index 00000000..e49c8c71 --- /dev/null +++ b/media/d3.layout.min.js @@ -0,0 +1 @@ +(function(){function bc(a,b){var 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