--- /dev/null
+(function(){d3 = {version: "1.8.5"}; // semver
+if (!Date.now) Date.now = function() {
+ return +new Date();
+};
+if (!Object.create) Object.create = function(o) {
+ /** @constructor */ function f() {}
+ f.prototype = o;
+ return new f();
+};
+var d3_array = d3_arraySlice; // conversion for NodeLists
+
+function d3_arrayCopy(psuedoarray) {
+ var i = -1, n = psuedoarray.length, array = [];
+ while (++i < n) array.push(psuedoarray[i]);
+ return array;
+}
+
+function d3_arraySlice(psuedoarray) {
+ return Array.prototype.slice.call(psuedoarray);
+}
+
+try {
+ d3_array(document.documentElement.childNodes)[0].nodeType;
+} catch(e) {
+ d3_array = d3_arrayCopy;
+}
+function d3_functor(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 : 0;
+};
+d3.descending = function(a, b) {
+ return b < a ? -1 : b > a ? 1 : 0;
+};
+d3.min = function(array, f) {
+ var i = 0,
+ n = array.length,
+ a = array[0],
+ b;
+ if (arguments.length == 1) {
+ while (++i < n) if (a > (b = array[i])) a = b;
+ } else {
+ a = f(array[0]);
+ while (++i < n) if (a > (b = f(array[i]))) a = b;
+ }
+ return a;
+};
+d3.max = function(array, f) {
+ var i = 0,
+ n = array.length,
+ a = array[0],
+ b;
+ if (arguments.length == 1) {
+ while (++i < n) if (a < (b = array[i])) a = b;
+ } else {
+ a = f(a);
+ while (++i < n) if (a < (b = f(array[i]))) 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.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+$)/g, "").replace(/\s+/g, " ");
+}
+//
+// Note: assigning to the arguments array simultaneously changes the value of
+// the corresponding argument!
+//
+// TODO The `this` argument probably shouldn't be the first argument to the
+// callback, anyway, since it's redundant. However, that will require a major
+// version bump due to backwards compatibility, so I'm not changing it right
+// away.
+//
+function d3_call(callback) {
+ callback.apply(this, (arguments[0] = this, arguments));
+ return this;
+}
+/**
+ * @param {number} start
+ * @param {number=} stop
+ * @param {number=} step
+ */
+d3.range = function(start, stop, step) {
+ if (arguments.length == 1) { stop = start; start = 0; }
+ if (step == null) step = 1;
+ if ((stop - start) / step == Infinity) throw new Error("infinite range");
+ var range = [],
+ i = -1,
+ j;
+ if (step < 0) while ((j = start + step * ++i) > stop) range.push(j);
+ else while ((j = start + step * ++i) < stop) range.push(j);
+ return range;
+};
+d3.requote = function(s) {
+ return s.replace(d3_requote_re, "\\$&");
+};
+
+var d3_requote_re = /[\\\^\$\*\+\?\[\]\(\)\.\{\}]/g;
+d3.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, type
+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];
+ if (precision) precision = precision.substring(1);
+ if (zfill) {
+ fill = "0"; // TODO align = "=";
+ if (comma) width -= Math.floor((width - 1) / 4);
+ }
+ if (type == "d") precision = "0";
+ return function(value) {
+ var number = +value,
+ negative = (number < 0) && (number = -number) ? "\u2212" : sign;
+
+ // Return the empty string for floats formatted as ints.
+ if ((type == "d") && (number % 1)) return "";
+
+ // Convert the input value to the desired precision.
+ if (precision) value = number.toFixed(precision);
+ else value = "" + number;
+
+ // 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;
+ }
+
+ return value;
+ };
+};
+
+// [[fill]align][sign][#][0][width][,][.precision][type]
+var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/;
+
+// 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_mode[m](d3_ease[t].apply(null, Array.prototype.slice.call(arguments, 1)));
+};
+
+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 t ? Math.pow(2, 10 * (t - 1)) - 1e-3 : 0;
+}
+
+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) {
+ if (typeof b == "number") return d3.interpolateNumber(+a, b);
+ if (typeof b == "string") {
+ return (b in d3_rgb_names) || /^(#|rgb\(|hsl\()/.test(b)
+ ? d3.interpolateRgb(String(a), b)
+ : d3.interpolateString(String(a), b);
+ }
+ if (b instanceof Array) return d3.interpolateArray(a, b);
+ return d3.interpolateObject(a, b);
+};
+
+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;
+
+ // 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_digits = /[-+]?\d*\.?\d*(?:[eE][-]?\d+)?(.*)/,
+ 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;
+}
+/**
+ * @param {number=} g
+ * @param {number=} 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 {r: r, g: g, b: b, toString: d3_rgb_format};
+}
+
+/** @this d3_rgb */
+function d3_rgb_format() {
+ 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);
+}
+/**
+ * @param {number=} s
+ * @param {number=} l
+ */
+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 {h: h, s: s, l: l, toString: d3_hsl_format};
+}
+
+/** @this d3_hsl */
+function d3_hsl_format() {
+ 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));
+}
+var d3_select = function(s, n) { return n.querySelector(s); },
+ d3_selectAll = function(s, n) { return d3_array(n.querySelectorAll(s)); };
+
+// Use 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_root = d3_selection([[document]]);
+d3_root[0].parentNode = document.documentElement;
+
+// TODO fast singleton implementation!
+d3.select = function(selector) {
+ return typeof selector == "string"
+ ? d3_root.select(selector)
+ : d3_selection([[selector]]); // assume node
+};
+
+d3.selectAll = function(selector) {
+ return typeof selector == "string"
+ ? d3_root.selectAll(selector)
+ : d3_selection([d3_array(selector)]); // assume node[]
+};
+
+function d3_selection(groups) {
+
+ function select(select) {
+ var subgroups = [],
+ subgroup,
+ subnode,
+ group,
+ node;
+ for (var j = 0, m = groups.length; j < m; j++) {
+ group = groups[j];
+ subgroups.push(subgroup = []);
+ subgroup.parentNode = group.parentNode;
+ subgroup.parentData = group.parentData;
+ for (var i = 0, n = group.length; i < n; i++) {
+ if (node = group[i]) {
+ subgroup.push(subnode = select(node));
+ if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
+ } else {
+ subgroup.push(null);
+ }
+ }
+ }
+ return d3_selection(subgroups);
+ }
+
+ function selectAll(selectAll) {
+ var subgroups = [],
+ subgroup,
+ group,
+ node;
+ for (var j = 0, m = groups.length; j < m; j++) {
+ group = groups[j];
+ for (var i = 0, n = group.length; i < n; i++) {
+ if (node = group[i]) {
+ subgroups.push(subgroup = selectAll(node));
+ subgroup.parentNode = node;
+ subgroup.parentData = node.__data__;
+ }
+ }
+ }
+ return d3_selection(subgroups);
+ }
+
+ // TODO select(function)?
+ groups.select = function(selector) {
+ return select(function(node) {
+ return d3_select(selector, node);
+ });
+ };
+
+ // TODO selectAll(function)?
+ groups.selectAll = function(selector) {
+ return selectAll(function(node) {
+ return d3_selectAll(selector, node);
+ });
+ };
+
+ // TODO preserve null elements to maintain index?
+ groups.filter = function(filter) {
+ var subgroups = [],
+ subgroup,
+ group,
+ node;
+ for (var j = 0, m = groups.length; j < m; j++) {
+ group = groups[j];
+ subgroups.push(subgroup = []);
+ subgroup.parentNode = group.parentNode;
+ subgroup.parentData = group.parentData;
+ 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);
+ };
+
+ groups.map = function(map) {
+ var group,
+ node;
+ for (var j = 0, m = groups.length; j < m; j++) {
+ group = groups[j];
+ for (var i = 0, n = group.length; i < n; i++) {
+ if (node = group[i]) node.__data__ = map.call(node, node.__data__, i);
+ }
+ }
+ return groups;
+ };
+
+ // TODO data(null) for clearing data?
+ groups.data = function(data, join) {
+ var enter = [],
+ update = [],
+ exit = [];
+
+ function bind(group, groupData) {
+ var i = 0,
+ n = group.length,
+ m = groupData.length,
+ n0 = Math.min(n, m),
+ n1 = Math.max(n, m),
+ updateNodes = [],
+ enterNodes = [],
+ exitNodes = [],
+ node,
+ nodeData;
+
+ function enterNode(data) {
+ return {__data__: data};
+ }
+
+ if (join) {
+ var nodeByKey = {},
+ exitData = [],
+ keys = [],
+ key,
+ j = groupData.length;
+
+ for (i = 0; i < n; i++) {
+ key = join.call(node = group[i], node.__data__, i);
+ if (key in nodeByKey) {
+ exitNodes[j++] = group[i];
+ } else {
+ nodeByKey[key] = node;
+ keys.push(key);
+ }
+ }
+
+ for (i = 0; i < m; i++) {
+ 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] = enterNode(nodeData),
+ updateNodes[i] = exitNodes[i] = null;
+ }
+ delete nodeByKey[key];
+ }
+
+ for (i = 0; i < n; i++) {
+ if (keys[i] in nodeByKey) {
+ exitNodes[i] = group[i];
+ }
+ }
+ } else {
+ for (; i < n0; i++) {
+ node = group[i];
+ nodeData = groupData[i];
+ if (node) {
+ node.__data__ = nodeData;
+ updateNodes[i] = node;
+ enterNodes[i] = exitNodes[i] = null;
+ } else {
+ enterNodes[i] = enterNode(nodeData);
+ updateNodes[i] = exitNodes[i] = null;
+ }
+ }
+ for (; i < m; i++) {
+ enterNodes[i] = enterNode(groupData[i]);
+ updateNodes[i] = exitNodes[i] = null;
+ }
+ for (; i < n1; i++) {
+ exitNodes[i] = group[i];
+ enterNodes[i] = updateNodes[i] = null;
+ }
+ }
+
+ enterNodes.parentNode
+ = updateNodes.parentNode
+ = exitNodes.parentNode
+ = group.parentNode;
+
+ enterNodes.parentData
+ = updateNodes.parentData
+ = exitNodes.parentData
+ = group.parentData;
+
+ enter.push(enterNodes);
+ update.push(updateNodes);
+ exit.push(exitNodes);
+ }
+
+ var i = -1,
+ n = groups.length,
+ group;
+ if (typeof data == "function") {
+ while (++i < n) {
+ bind(group = groups[i], data.call(group, group.parentData, i));
+ }
+ } else {
+ while (++i < n) {
+ bind(group = groups[i], data);
+ }
+ }
+
+ var selection = d3_selection(update);
+ selection.enter = function() {
+ return d3_selectionEnter(enter);
+ };
+ selection.exit = function() {
+ return d3_selection(exit);
+ };
+ return selection;
+ };
+
+ // TODO mask forEach? or rename for eachData?
+ // TODO offer the same semantics for map, reduce, etc.?
+ groups.each = function(callback) {
+ for (var j = 0, m = groups.length; j < m; j++) {
+ var group = groups[j];
+ for (var i = 0, n = group.length; i < n; i++) {
+ var node = group[i];
+ if (node) callback.call(node, node.__data__, i);
+ }
+ }
+ return groups;
+ };
+
+ function first(callback) {
+ for (var j = 0, m = groups.length; j < m; j++) {
+ var group = groups[j];
+ for (var i = 0, n = group.length; i < n; i++) {
+ var node = group[i];
+ if (node) return callback.call(node, node.__data__, i);
+ }
+ }
+ return null;
+ }
+
+ groups.empty = function() {
+ return !first(function() { return true; });
+ };
+
+ groups.node = function() {
+ return first(function() { return this; });
+ };
+
+ groups.attr = function(name, value) {
+ name = d3.ns.qualify(name);
+
+ // If no value is specified, return the first value.
+ if (arguments.length < 2) {
+ return first(name.local
+ ? function() { return this.getAttributeNS(name.space, name.local); }
+ : function() { return this.getAttribute(name); });
+ }
+
+ /** @this {Element} */
+ function attrNull() {
+ this.removeAttribute(name);
+ }
+
+ /** @this {Element} */
+ function attrNullNS() {
+ this.removeAttributeNS(name.space, name.local);
+ }
+
+ /** @this {Element} */
+ function attrConstant() {
+ this.setAttribute(name, value);
+ }
+
+ /** @this {Element} */
+ function attrConstantNS() {
+ this.setAttributeNS(name.space, name.local, value);
+ }
+
+ /** @this {Element} */
+ function attrFunction() {
+ var x = value.apply(this, arguments);
+ if (x == null) this.removeAttribute(name);
+ else this.setAttribute(name, x);
+ }
+
+ /** @this {Element} */
+ 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 groups.each(value == null
+ ? (name.local ? attrNullNS : attrNull) : (typeof value == "function"
+ ? (name.local ? attrFunctionNS : attrFunction)
+ : (name.local ? attrConstantNS : attrConstant)));
+ };
+
+ groups.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) {
+ return first(function() {
+ re.lastIndex = 0;
+ return re.test(this.className);
+ });
+ }
+
+ /** @this {Element} */
+ function classedAdd() {
+ var classes = this.className;
+ re.lastIndex = 0;
+ if (!re.test(classes)) {
+ this.className = d3_collapse(classes + " " + name);
+ }
+ }
+
+ /** @this {Element} */
+ function classedRemove() {
+ var classes = d3_collapse(this.className.replace(re, " "));
+ this.className = classes.length ? classes : null;
+ }
+
+ /** @this {Element} */
+ function classedFunction() {
+ (value.apply(this, arguments)
+ ? classedAdd
+ : classedRemove).call(this);
+ }
+
+ return groups.each(typeof value == "function"
+ ? classedFunction : value
+ ? classedAdd
+ : classedRemove);
+ };
+
+ groups.style = function(name, value, priority) {
+ if (arguments.length < 3) priority = null;
+
+ // If no value is specified, return the first value.
+ if (arguments.length < 2) {
+ return first(function() {
+ return window.getComputedStyle(this, null).getPropertyValue(name);
+ });
+ }
+
+ /** @this {Element} */
+ function styleNull() {
+ this.style.removeProperty(name);
+ }
+
+ /** @this {Element} */
+ function styleConstant() {
+ this.style.setProperty(name, value, priority);
+ }
+
+ /** @this {Element} */
+ function styleFunction() {
+ var x = value.apply(this, arguments);
+ if (x == null) this.style.removeProperty(name);
+ else this.style.setProperty(name, x, priority);
+ }
+
+ return groups.each(value == null
+ ? styleNull : (typeof value == "function"
+ ? styleFunction : styleConstant));
+ };
+
+ groups.property = function(name, value) {
+ name = d3.ns.qualify(name);
+
+ // If no value is specified, return the first value.
+ if (arguments.length < 2) {
+ return first(function() {
+ return this[name];
+ });
+ }
+
+ /** @this {Element} */
+ function propertyNull() {
+ delete this[name];
+ }
+
+ /** @this {Element} */
+ function propertyConstant() {
+ this[name] = value;
+ }
+
+ /** @this {Element} */
+ function propertyFunction() {
+ var x = value.apply(this, arguments);
+ if (x == null) delete this[name];
+ else this[name] = x;
+ }
+
+ return groups.each(value == null
+ ? propertyNull : (typeof value == "function"
+ ? propertyFunction : propertyConstant));
+ };
+
+ groups.text = function(value) {
+
+ // If no value is specified, return the first value.
+ if (arguments.length < 1) {
+ return first(function() {
+ return this.textContent;
+ });
+ }
+
+ /** @this {Element} */
+ function textNull() {
+ while (this.lastChild) this.removeChild(this.lastChild);
+ }
+
+ /** @this {Element} */
+ function textConstant() {
+ this.appendChild(document.createTextNode(value));
+ }
+
+ /** @this {Element} */
+ function textFunction() {
+ var x = value.apply(this, arguments);
+ if (x != null) this.appendChild(document.createTextNode(x));
+ }
+
+ groups.each(textNull);
+ return value == null ? groups
+ : groups.each(typeof value == "function"
+ ? textFunction : textConstant);
+ };
+
+ groups.html = function(value) {
+
+ // If no value is specified, return the first value.
+ if (arguments.length < 1) {
+ return first(function() {
+ return this.innerHTML;
+ });
+ }
+
+ /** @this {Element} */
+ function htmlConstant() {
+ this.innerHTML = value;
+ }
+
+ /** @this {Element} */
+ function htmlFunction() {
+ this.innerHTML = value.apply(this, arguments);
+ }
+
+ return groups.each(typeof value == "function"
+ ? htmlFunction : htmlConstant);
+ };
+
+ // TODO append(node)?
+ // TODO append(function)?
+ groups.append = function(name) {
+ name = d3.ns.qualify(name);
+
+ function append(node) {
+ return node.appendChild(document.createElement(name));
+ }
+
+ function appendNS(node) {
+ return node.appendChild(document.createElementNS(name.space, name.local));
+ }
+
+ return select(name.local ? appendNS : append);
+ };
+
+ // TODO insert(node, function)?
+ // TODO insert(function, string)?
+ // TODO insert(function, function)?
+ groups.insert = function(name, before) {
+ name = d3.ns.qualify(name);
+
+ function insert(node) {
+ return node.insertBefore(
+ document.createElement(name),
+ d3_select(before, node));
+ }
+
+ function insertNS(node) {
+ return node.insertBefore(
+ document.createElementNS(name.space, name.local),
+ d3_select(before, node));
+ }
+
+ return select(name.local ? insertNS : insert);
+ };
+
+ // TODO remove(selector)?
+ // TODO remove(node)?
+ // TODO remove(function)?
+ groups.remove = function() {
+ return select(function(node) {
+ var parent = node.parentNode;
+ parent.removeChild(node);
+ return parent;
+ });
+ };
+
+ groups.sort = function(comparator) {
+ comparator = d3_selection_comparator.apply(this, arguments);
+ for (var j = 0, m = groups.length; j < m; j++) {
+ var group = groups[j];
+ group.sort(comparator);
+ for (var 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 groups;
+ };
+
+ // type can be namespaced, e.g., "click.foo"
+ // listener can be null for removal
+ groups.on = function(type, listener) {
+
+ // parse the type specifier
+ var i = type.indexOf("."),
+ typo = i == -1 ? type : type.substring(0, i),
+ name = "__on" + type;
+
+ // remove the old event listener, and add the new event listener
+ return groups.each(function(d, i) {
+ if (this[name]) this.removeEventListener(typo, this[name], false);
+ if (listener) this.addEventListener(typo, this[name] = l, false);
+
+ // wrapped event listener that preserves d, i
+ function l(e) {
+ var o = d3.event; // Events can be reentrant (e.g., focus).
+ d3.event = e;
+ try {
+ listener.call(this, d, i);
+ } finally {
+ d3.event = o;
+ }
+ }
+ });
+ };
+
+ // TODO slice?
+
+ groups.transition = function() {
+ return d3_transition(groups);
+ };
+
+ groups.call = d3_call;
+
+ return groups;
+}
+
+function d3_selectionEnter(groups) {
+
+ function select(select) {
+ var subgroups = [],
+ subgroup,
+ subnode,
+ group,
+ node;
+ for (var j = 0, m = groups.length; j < m; j++) {
+ group = groups[j];
+ subgroups.push(subgroup = []);
+ subgroup.parentNode = group.parentNode;
+ subgroup.parentData = group.parentData;
+ for (var i = 0, n = group.length; i < n; i++) {
+ if (node = group[i]) {
+ subgroup.push(subnode = select(group.parentNode));
+ subnode.__data__ = node.__data__;
+ } else {
+ subgroup.push(null);
+ }
+ }
+ }
+ return d3_selection(subgroups);
+ }
+
+ // TODO append(node)?
+ // TODO append(function)?
+ groups.append = function(name) {
+ name = d3.ns.qualify(name);
+
+ function append(node) {
+ return node.appendChild(document.createElement(name));
+ }
+
+ function appendNS(node) {
+ return node.appendChild(document.createElementNS(name.space, name.local));
+ }
+
+ return select(name.local ? appendNS : append);
+ };
+
+ // TODO insert(node, function)?
+ // TODO insert(function, string)?
+ // TODO insert(function, function)?
+ groups.insert = function(name, before) {
+ name = d3.ns.qualify(name);
+
+ function insert(node) {
+ return node.insertBefore(
+ document.createElement(name),
+ d3_select(before, node));
+ }
+
+ function insertNS(node) {
+ return node.insertBefore(
+ document.createElementNS(name.space, name.local),
+ d3_select(before, node));
+ }
+
+ return select(name.local ? insertNS : insert);
+ };
+
+ return groups;
+}
+
+function d3_selection_comparator(comparator) {
+ if (!arguments.length) comparator = d3.ascending;
+ return function(a, b) {
+ return comparator(a && a.__data__, b && b.__data__);
+ };
+}
+d3.transition = d3_root.transition;
+
+var d3_transitionId = 0,
+ d3_transitionInheritId = 0;
+
+function d3_transition(groups) {
+ var transition = {},
+ transitionId = d3_transitionInheritId || ++d3_transitionId,
+ tweens = {},
+ interpolators = [],
+ remove = false,
+ event = d3.dispatch("start", "end"),
+ stage = [],
+ delay = [],
+ duration = [],
+ durationMax,
+ ease = d3.ease("cubic-in-out");
+
+ //
+ // Be careful with concurrent transitions!
+ //
+ // Say transition A causes an exit. Before A finishes, a transition B is
+ // created, and believes it only needs to do an update, because the elements
+ // haven't been removed yet (which happens at the very end of the exit
+ // transition).
+ //
+ // Even worse, what if either transition A or B has a staggered delay? Then,
+ // some elements may be removed, while others remain. Transition B does not
+ // know to enter the elements because they were still present at the time
+ // the transition B was created (but not yet started).
+ //
+ // To prevent such confusion, we only trigger end events for transitions if
+ // the transition ending is the only one scheduled for the given element.
+ // Similarly, we only allow one transition to be active for any given
+ // element, so that concurrent transitions do not overwrite each other's
+ // properties.
+ //
+ // TODO Support transition namespaces, so that transitions can proceed
+ // concurrently on the same element if needed. Hopefully, this is rare!
+ //
+
+ groups.each(function() {
+ (this.__transition__ || (this.__transition__ = {})).owner = transitionId;
+ });
+
+ function step(elapsed) {
+ var clear = true,
+ k = -1;
+ groups.each(function() {
+ if (stage[++k] == 2) return; // ended
+ var t = (elapsed - delay[k]) / duration[k],
+ tx = this.__transition__,
+ te, // ease(t)
+ tk, // tween key
+ ik = interpolators[k];
+
+ // Check if the (un-eased) time is outside the range [0,1].
+ if (t < 1) {
+ clear = false;
+ if (t < 0) return;
+ } else {
+ t = 1;
+ }
+
+ // Determine the stage of this transition.
+ // 0 - Not yet started.
+ // 1 - In progress.
+ // 2 - Ended.
+ if (stage[k]) {
+ if (!tx || tx.active != transitionId) {
+ stage[k] = 2;
+ return;
+ }
+ } else if (!tx || tx.active > transitionId) {
+ stage[k] = 2;
+ return;
+ } else {
+ stage[k] = 1;
+ event.start.dispatch.apply(this, arguments);
+ ik = interpolators[k] = {};
+ tx.active = transitionId;
+ for (tk in tweens) ik[tk] = tweens[tk].apply(this, arguments);
+ }
+
+ // Apply the interpolators!
+ te = ease(t);
+ for (tk in tweens) ik[tk].call(this, te);
+
+ // Handle ending transitions.
+ if (t == 1) {
+ stage[k] = 2;
+ if (tx.active == transitionId) {
+ var owner = tx.owner;
+ if (owner == transitionId) {
+ delete this.__transition__;
+ if (remove) this.parentNode.removeChild(this);
+ }
+ d3_transitionInheritId = transitionId;
+ event.end.dispatch.apply(this, arguments);
+ d3_transitionInheritId = 0;
+ tx.owner = owner;
+ }
+ }
+ });
+ return clear;
+ }
+
+ transition.delay = function(value) {
+ var delayMin = Infinity,
+ k = -1;
+ if (typeof value == "function") {
+ groups.each(function(d, i) {
+ var x = delay[++k] = +value.apply(this, arguments);
+ if (x < delayMin) delayMin = x;
+ });
+ } else {
+ delayMin = +value;
+ groups.each(function(d, i) {
+ delay[++k] = delayMin;
+ });
+ }
+ d3_timer(step, delayMin);
+ return transition;
+ };
+
+ transition.duration = function(value) {
+ var k = -1;
+ if (typeof value == "function") {
+ durationMax = 0;
+ groups.each(function(d, i) {
+ var x = duration[++k] = +value.apply(this, arguments);
+ if (x > durationMax) durationMax = x;
+ });
+ } else {
+ durationMax = +value;
+ groups.each(function(d, i) {
+ duration[++k] = durationMax;
+ });
+ }
+ return transition;
+ };
+
+ transition.ease = function(value) {
+ ease = typeof value == "function" ? value : d3.ease.apply(d3, arguments);
+ return transition;
+ };
+
+ transition.attrTween = function(name, tween) {
+
+ /** @this {Element} */
+ function attrTween(d, i) {
+ var f = tween.call(this, d, i, this.getAttribute(name));
+ return function(t) {
+ this.setAttribute(name, f(t));
+ };
+ }
+
+ /** @this {Element} */
+ function attrTweenNS(d, i) {
+ var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
+ return function(t) {
+ this.setAttributeNS(name.space, name.local, f(t));
+ };
+ }
+
+ tweens["attr." + name] = name.local ? attrTweenNS : attrTween;
+ return transition;
+ };
+
+ transition.attr = function(name, value) {
+ return transition.attrTween(name, d3_transitionTween(value));
+ };
+
+ transition.styleTween = function(name, tween, priority) {
+ if (arguments.length < 3) priority = null;
+
+ /** @this {Element} */
+ function styleTween(d, i) {
+ var f = tween.call(this, d, i, window.getComputedStyle(this, null).getPropertyValue(name));
+ return function(t) {
+ this.style.setProperty(name, f(t), priority);
+ };
+ }
+
+ tweens["style." + name] = styleTween;
+ return transition;
+ };
+
+ transition.style = function(name, value, priority) {
+ if (arguments.length < 3) priority = null;
+ return transition.styleTween(name, d3_transitionTween(value), priority);
+ };
+
+ transition.select = function(query) {
+ var k, t = d3_transition(groups.select(query)).ease(ease);
+ k = -1; t.delay(function(d, i) { return delay[++k]; });
+ k = -1; t.duration(function(d, i) { return duration[++k]; });
+ return t;
+ };
+
+ transition.selectAll = function(query) {
+ var k, t = d3_transition(groups.selectAll(query)).ease(ease);
+ k = -1; t.delay(function(d, i) { return delay[i ? k : ++k]; })
+ k = -1; t.duration(function(d, i) { return duration[i ? k : ++k]; });
+ return t;
+ };
+
+ transition.remove = function() {
+ remove = true;
+ return transition;
+ };
+
+ transition.each = function(type, listener) {
+ event[type].add(listener);
+ return transition;
+ };
+
+ transition.call = d3_call;
+
+ return transition.delay(0).duration(250);
+}
+
+function d3_transitionTween(b) {
+ return typeof b == "function"
+ ? function(d, i, a) { return d3.interpolate(a, String(b.call(this, d, i))); }
+ : (b = String(b), function(d, i, a) { return d3.interpolate(a, b); });
+}
+var d3_timer_queue = null,
+ d3_timer_timeout = 0,
+ d3_timer_interval;
+
+// The timer will continue to fire until callback returns true.
+d3.timer = function(callback) {
+ d3_timer(callback, 0);
+};
+
+function d3_timer(callback, delay) {
+ var now = Date.now(),
+ found = false,
+ start = now + delay,
+ t0,
+ t1 = d3_timer_queue;
+
+ if (!isFinite(delay)) return;
+
+ // Scan the queue for earliest callback.
+ while (t1) {
+ if (t1.callback == callback) {
+ t1.then = now;
+ t1.delay = delay;
+ found = true;
+ } else {
+ var x = t1.then + t1.delay;
+ if (x < start) start = x;
+ }
+ t0 = t1;
+ t1 = t1.next;
+ }
+
+ // Otherwise, add the callback to the queue.
+ if (!found) d3_timer_queue = {
+ callback: callback,
+ then: now,
+ delay: delay,
+ next: d3_timer_queue
+ };
+
+ if (!d3_timer_interval) {
+ clearTimeout(d3_timer_timeout);
+ d3_timer_timeout = setTimeout(d3_timer_start, Math.max(24, start - now));
+ }
+}
+
+function d3_timer_start() {
+ d3_timer_interval = 1;
+ d3_timer_timeout = 0;
+ d3_timer_frame(d3_timer_step);
+}
+
+function d3_timer_step() {
+ var elapsed,
+ now = Date.now(),
+ t0 = null,
+ t1 = d3_timer_queue;
+ while (t1) {
+ elapsed = now - t1.then;
+ if (elapsed > t1.delay) t1.flush = t1.callback(elapsed);
+ t1 = (t0 = t1).next;
+ }
+ d3_timer_flush();
+ if (d3_timer_interval) d3_timer_frame(d3_timer_step);
+}
+
+// Flush after callbacks, to avoid concurrent queue modification.
+function d3_timer_flush() {
+ var t0 = null,
+ t1 = d3_timer_queue;
+ while (t1) {
+ t1 = t1.flush
+ ? (t0 ? t0.next = t1.next : d3_timer_queue = t1.next)
+ : (t0 = t1).next;
+ }
+ if (!t0) d3_timer_interval = 0;
+}
+
+var d3_timer_frame = window.requestAnimationFrame
+ || window.webkitRequestAnimationFrame
+ || window.mozRequestAnimationFrame
+ || window.oRequestAnimationFrame
+ || window.msRequestAnimationFrame
+ || function(callback) { setTimeout(callback, 17); };
+d3.scale = {};
+d3.scale.linear = function() {
+ var x0 = 0,
+ x1 = 1,
+ y0 = 0,
+ y1 = 1,
+ kx = 1, // 1 / (x1 - x0)
+ ky = 1, // (x1 - x0) / (y1 - y0)
+ interpolate = d3.interpolate,
+ i = interpolate(y0, y1);
+
+ function scale(x) {
+ return i((x - x0) * kx);
+ }
+
+ // Note: requires range is coercible to number!
+ scale.invert = function(y) {
+ return (y - y0) * ky + x0;
+ };
+
+ scale.domain = function(x) {
+ if (!arguments.length) return [x0, x1];
+ x0 = +x[0];
+ x1 = +x[1];
+ kx = 1 / (x1 - x0);
+ ky = (x1 - x0) / (y1 - y0);
+ return scale;
+ };
+
+ scale.range = function(x) {
+ if (!arguments.length) return [y0, y1];
+ y0 = x[0];
+ y1 = x[1];
+ ky = (x1 - x0) / (y1 - y0);
+ i = interpolate(y0, y1);
+ return scale;
+ };
+
+ scale.rangeRound = function(x) {
+ return scale.range(x).interpolate(d3.interpolateRound);
+ };
+
+ scale.interpolate = function(x) {
+ if (!arguments.length) return interpolate;
+ i = (interpolate = x)(y0, y1);
+ return scale;
+ };
+
+ // TODO Dates? Ugh.
+ function tickRange(m) {
+ var start = Math.min(x0, x1),
+ stop = Math.max(x0, x1),
+ span = stop - start,
+ 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.
+ return {
+ start: Math.ceil(start / step) * step,
+ stop: Math.floor(stop / step) * step + step * .5, // inclusive
+ step: step
+ };
+ }
+
+ scale.ticks = function(m) {
+ var range = tickRange(m);
+ return d3.range(range.start, range.stop, range.step);
+ };
+
+ scale.tickFormat = function(m) {
+ var n = Math.max(0, -Math.floor(Math.log(tickRange(m).step) / Math.LN10 + .01));
+ return d3.format(",." + n + "f");
+ };
+
+ return scale;
+};
+d3.scale.log = function() {
+ var linear = d3.scale.linear(),
+ log = d3_scale_log,
+ 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] || x[1]) < 0 ? d3_scale_logn : d3_scale_log;
+ pow = log.pow;
+ linear.domain(x.map(log));
+ return scale;
+ };
+
+ scale.range = d3.rebind(scale, linear.range);
+ scale.rangeRound = d3.rebind(scale, linear.rangeRound);
+ scale.interpolate = d3.rebind(scale, linear.interpolate);
+
+ scale.ticks = function() {
+ var d = linear.domain(),
+ ticks = [];
+ if (d.every(isFinite)) {
+ var i = Math.floor(d[0]),
+ j = Math.ceil(d[1]),
+ u = pow(d[0]),
+ v = pow(d[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() {
+ return function(d) { return d.toPrecision(1); };
+ };
+
+ return scale;
+};
+
+function d3_scale_log(x) {
+ return Math.log(x) / Math.LN10;
+}
+
+function d3_scale_logn(x) {
+ return -Math.log(-x) / Math.LN10;
+}
+
+d3_scale_log.pow = function(x) {
+ return Math.pow(10, x);
+};
+
+d3_scale_logn.pow = function(x) {
+ return -Math.pow(10, -x);
+};
+d3.scale.pow = function() {
+ var linear = d3.scale.linear(),
+ tick = d3.scale.linear(), // TODO better tick formatting...
+ exponent = 1,
+ powp = Number,
+ powb = powp;
+
+ 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);
+ var pow = (x[0] || x[1]) < 0 ? d3_scale_pown : d3_scale_pow;
+ powp = pow(exponent);
+ powb = pow(1 / exponent);
+ linear.domain(x.map(powp));
+ tick.domain(x);
+ return scale;
+ };
+
+ scale.range = d3.rebind(scale, linear.range);
+ scale.rangeRound = d3.rebind(scale, linear.rangeRound);
+ scale.interpolate = d3.rebind(scale, linear.interpolate);
+ scale.ticks = tick.ticks;
+ scale.tickFormat = tick.tickFormat;
+
+ scale.exponent = function(x) {
+ if (!arguments.length) return exponent;
+ var domain = scale.domain();
+ exponent = x;
+ return scale.domain(domain);
+ };
+
+ return scale;
+};
+
+function d3_scale_pow(e) {
+ return function(x) {
+ return Math.pow(x, e);
+ };
+}
+
+function d3_scale_pown(e) {
+ return function(x) {
+ return -Math.pow(-x, e);
+ };
+}
+d3.scale.sqrt = function() {
+ return d3.scale.pow().exponent(.5);
+};
+d3.scale.ordinal = function() {
+ var domain = [],
+ index = {},
+ range = [],
+ rangeBand = 0;
+
+ function scale(x) {
+ var i = x in index ? index[x] : (index[x] = domain.push(x) - 1);
+ return range[i % range.length];
+ }
+
+ scale.domain = function(x) {
+ if (!arguments.length) return domain;
+ domain = x;
+ index = {};
+ var i = -1, j = -1, n = domain.length; while (++i < n) {
+ x = domain[i];
+ if (!(x in index)) index[x] = ++j;
+ }
+ return scale;
+ };
+
+ scale.range = function(x) {
+ if (!arguments.length) return range;
+ range = 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 == 1
+ ? [(start + stop) / 2]
+ : d3.range(start + step * padding / 2, stop + step / 2, step);
+ rangeBand = 0;
+ 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);
+ return scale;
+ };
+
+ scale.rangeRoundBands = function(x, padding) {
+ if (arguments.length < 2) padding = 0;
+ var start = x[0],
+ stop = x[1],
+ diff = stop - start,
+ step = Math.floor(diff / (domain.length + padding)),
+ err = diff - (domain.length - padding) * step;
+ range = d3.range(start + Math.round(err / 2), stop, step);
+ rangeBand = Math.round(step * (1 - padding));
+ return scale;
+ };
+
+ scale.rangeBand = function() {
+ return rangeBand;
+ };
+
+ return scale;
+};
+/*
+ * 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() {
+ var domain = [],
+ range = [],
+ thresholds = [];
+
+ function rescale() {
+ var i = -1,
+ n = thresholds.length = range.length,
+ k = domain.length / n;
+ while (++i < n) thresholds[i] = domain[~~(i * k)];
+ }
+
+ function quantile(value) {
+ if (isNaN(value = +value)) return NaN;
+ var low = 0, high = thresholds.length - 1;
+ while (low <= high) {
+ var mid = (low + high) >> 1, midValue = thresholds[mid];
+ if (midValue < value) low = mid + 1;
+ else if (midValue > value) high = mid - 1;
+ else return mid;
+ }
+ return high < 0 ? 0 : high;
+ }
+
+ function scale(x) {
+ return range[quantile(x)];
+ }
+
+ scale.domain = function(x) {
+ if (!arguments.length) return domain;
+ domain = x.filter(function(d) { return !isNaN(d); }).sort(d3.ascending);
+ rescale();
+ return scale;
+ };
+
+ scale.range = function(x) {
+ if (!arguments.length) return range;
+ range = x;
+ rescale();
+ return scale;
+ };
+
+ scale.quantiles = function() {
+ return thresholds;
+ };
+
+ return scale;
+};
+d3.scale.quantize = function() {
+ var x0 = 0,
+ x1 = 1,
+ kx = 2,
+ i = 1,
+ range = [0, 1];
+
+ function scale(x) {
+ return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];
+ }
+
+ scale.domain = function(x) {
+ if (!arguments.length) return [x0, x1];
+ x0 = x[0];
+ x1 = x[1];
+ kx = range.length / (x1 - x0);
+ return scale;
+ };
+
+ scale.range = function(x) {
+ if (!arguments.length) return range;
+ range = x;
+ kx = range.length / (x1 - x0);
+ i = range.length - 1;
+ return scale;
+ };
+
+ return scale;
+};
+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,
+ 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 1,1 0," + (-r0)
+ + "A" + r0 + "," + r0 + " 0 1,1 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;
+}
+d3.svg.line = function() {
+ 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(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;
+};
+
+// 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-closed": d3_svg_lineBasisClosed,
+ "cardinal": d3_svg_lineCardinal,
+ "cardinal-closed": d3_svg_lineCardinalClosed
+};
+
+// Linear interpolation; generates "L" commands.
+function d3_svg_lineLinear(points) {
+ var path = [],
+ i = 0,
+ n = points.length,
+ p = points[0];
+ path.push(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 path = [],
+ i = 0,
+ n = points.length,
+ p = points[0];
+ path.push(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 path = [],
+ i = 0,
+ n = points.length,
+ p = points[0];
+ path.push(p[0], ",", p[1]);
+ while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);
+ return path.join("");
+}
+
+// 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,
+ 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 = points[0],
+ p1 = points[1],
+ p2 = points[2],
+ i = 2,
+ n = points.length;
+ while (++i < n) {
+ tangents.push([a * (p2[0] - p0[0]), a * (p2[1] - p0[1])]);
+ p0 = p1;
+ p1 = p2;
+ p2 = points[i];
+ }
+ tangents.push([a * (p2[0] - p0[0]), a * (p2[1] - p0[1])]);
+ return tangents;
+}
+
+// Open B-spline interpolation; generates "C" commands.
+function d3_svg_lineBasis(points) {
+ if (points.length < 3) return d3_svg_lineLinear(points);
+ var path = [],
+ 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.push(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("");
+}
+
+// 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("");
+}
+
+// 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));
+}
+d3.svg.area = function() {
+ var x = d3_svg_lineX,
+ y0 = d3_svg_areaY0,
+ y1 = d3_svg_lineY,
+ interpolate = "linear",
+ interpolator = d3_svg_lineInterpolators[interpolate],
+ tension = .7;
+
+ // TODO horizontal / vertical / radial orientation
+
+ function area(d) {
+ return d.length < 1 ? null
+ : "M" + interpolator(d3_svg_linePoints(this, d, x, y1), tension)
+ + "L" + interpolator(d3_svg_linePoints(this, d, x, y0).reverse(), tension)
+ + "Z";
+ }
+
+ area.x = function(v) {
+ if (!arguments.length) return x;
+ x = v;
+ return area;
+ };
+
+ area.y0 = function(v) {
+ if (!arguments.length) return y0;
+ y0 = v;
+ return area;
+ };
+
+ area.y1 = function(v) {
+ if (!arguments.length) return y1;
+ y1 = v;
+ return area;
+ };
+
+ area.interpolate = function(v) {
+ if (!arguments.length) return interpolate;
+ interpolator = d3_svg_lineInterpolators[interpolate = v];
+ return area;
+ };
+
+ area.tension = function(v) {
+ if (!arguments.length) return tension;
+ tension = v;
+ return area;
+ };
+
+ return area;
+};
+
+function d3_svg_areaY0() {
+ return 0;
+}
+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.mouse = function(container) {
+ 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 = d3.event.pageX;
+ point.y = d3.event.pageY;
+ } else {
+ point.x = d3.event.clientX;
+ point.y = d3.event.clientY;
+ }
+ point = point.matrixTransform(container.getScreenCTM().inverse());
+ return [point.x, point.y];
+};
+
+// https://bugs.webkit.org/show_bug.cgi?id=44083
+var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0;
+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;
+};
+
+// TODO cross-diagonal?
+d3.svg.symbolTypes = [
+ "circle",
+ "cross",
+ "diamond",
+ "square",
+ "triangle-down",
+ "triangle-up"
+];
+
+function d3_svg_symbolSize() {
+ return 64;
+}
+
+function d3_svg_symbolType() {
+ return "circle";
+}
+
+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";
+ }
+};
+
+var d3_svg_symbolSqrt3 = Math.sqrt(3),
+ d3_svg_symbolTan30 = Math.tan(30 * Math.PI / 180);
+})()
\ No newline at end of file
Code Review / policy / engine.git / blobdiff