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-rw-r--r--visualize/static/d3.v2.js9342
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diff --git a/visualize/static/d3.v2.js b/visualize/static/d3.v2.js
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--- a/visualize/static/d3.v2.js
+++ /dev/null
@@ -1,9342 +0,0 @@
-(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: "2.8.1"}; // semver
-function d3_class(ctor, properties) {
- try {
- for (var key in properties) {
- Object.defineProperty(ctor.prototype, key, {
- value: properties[key],
- enumerable: false
- });
- }
- } catch (e) {
- ctor.prototype = properties;
- }
-}
-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];
-};
-d3.map = function(object) {
- var map = new d3_Map;
- for (var key in object) map.set(key, object[key]);
- return map;
-};
-
-function d3_Map() {}
-
-d3_class(d3_Map, {
- has: function(key) {
- return d3_map_prefix + key in this;
- },
- get: function(key) {
- return this[d3_map_prefix + key];
- },
- set: function(key, value) {
- return this[d3_map_prefix + key] = value;
- },
- remove: function(key) {
- key = d3_map_prefix + key;
- return key in this && delete this[key];
- },
- keys: function() {
- var keys = [];
- this.forEach(function(key) { keys.push(key); });
- return keys;
- },
- values: function() {
- var values = [];
- this.forEach(function(key, value) { values.push(value); });
- return values;
- },
- entries: function() {
- var entries = [];
- this.forEach(function(key, value) { entries.push({key: key, value: value}); });
- return entries;
- },
- forEach: function(f) {
- for (var key in this) {
- if (key.charCodeAt(0) === d3_map_prefixCode) {
- f.call(this, key.substring(1), this[key]);
- }
- }
- }
-});
-
-var d3_map_prefix = "\0", // prevent collision with built-ins
- d3_map_prefixCode = d3_map_prefix.charCodeAt(0);
-function d3_this() {
- return this;
-}
-d3.functor = function(v) {
- return typeof v === "function" ? v : function() { return v; };
-};
-// Copies a variable number of methods from source to target.
-d3.rebind = function(target, source) {
- var i = 1, n = arguments.length, method;
- while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);
- return target;
-};
-
-// Method is assumed to be a standard D3 getter-setter:
-// If passed with no arguments, gets the value.
-// If passed with arguments, sets the value and returns the target.
-function d3_rebind(target, source, method) {
- return function() {
- var value = method.apply(source, arguments);
- return arguments.length ? target : value;
- };
-}
-d3.ascending = function(a, b) {
- return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
-};
-d3.descending = function(a, b) {
- return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
-};
-d3.mean = function(array, f) {
- var n = array.length,
- a,
- m = 0,
- i = -1,
- j = 0;
- if (arguments.length === 1) {
- while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j;
- } else {
- while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j;
- }
- return j ? m : undefined;
-};
-d3.median = function(array, f) {
- if (arguments.length > 1) array = array.map(f);
- array = array.filter(d3_number);
- return array.length ? d3.quantile(array.sort(d3.ascending), .5) : undefined;
-};
-d3.min = function(array, f) {
- var i = -1,
- n = array.length,
- a,
- b;
- if (arguments.length === 1) {
- while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
- while (++i < n) if ((b = array[i]) != null && a > b) a = b;
- } else {
- while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
- while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;
- }
- return a;
-};
-d3.max = function(array, f) {
- var i = -1,
- n = array.length,
- a,
- b;
- if (arguments.length === 1) {
- while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
- while (++i < n) if ((b = array[i]) != null && b > a) a = b;
- } else {
- while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
- while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;
- }
- return a;
-};
-d3.extent = function(array, f) {
- var i = -1,
- n = array.length,
- a,
- b,
- c;
- if (arguments.length === 1) {
- while (++i < n && ((a = c = array[i]) == null || a != a)) a = c = undefined;
- while (++i < n) if ((b = array[i]) != null) {
- if (a > b) a = b;
- if (c < b) c = b;
- }
- } else {
- while (++i < n && ((a = c = f.call(array, array[i], i)) == null || a != a)) a = undefined;
- while (++i < n) if ((b = f.call(array, array[i], i)) != null) {
- if (a > b) a = b;
- if (c < b) c = b;
- }
- }
- return [a, c];
-};
-d3.random = {
- normal: function(mean, deviation) {
- if (arguments.length < 2) deviation = 1;
- if (arguments.length < 1) mean = 0;
- return function() {
- var x, y, r;
- do {
- x = Math.random() * 2 - 1;
- y = Math.random() * 2 - 1;
- r = x * x + y * y;
- } while (!r || r > 1);
- return mean + deviation * x * Math.sqrt(-2 * Math.log(r) / r);
- };
- }
-};
-function d3_number(x) {
- return x != null && !isNaN(x);
-}
-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.transpose = function(matrix) {
- return d3.zip.apply(d3, matrix);
-};
-d3.zip = function() {
- if (!(n = arguments.length)) return [];
- for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m;) {
- for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n;) {
- zip[j] = arguments[j][i];
- }
- }
- return zips;
-};
-
-function d3_zipLength(d) {
- return d.length;
-}
-d3.bisector = function(f) {
- return {
- left: function(a, x, lo, hi) {
- if (arguments.length < 3) lo = 0;
- if (arguments.length < 4) hi = a.length;
- while (lo < hi) {
- var mid = lo + hi >> 1;
- if (f.call(a, a[mid], mid) < x) lo = mid + 1;
- else hi = mid;
- }
- return lo;
- },
- right: function(a, x, lo, hi) {
- if (arguments.length < 3) lo = 0;
- if (arguments.length < 4) hi = a.length;
- while (lo < hi) {
- var mid = lo + hi >> 1;
- if (x < f.call(a, a[mid], mid)) hi = mid;
- else lo = mid + 1;
- }
- return lo;
- }
- };
-};
-
-var d3_bisector = d3.bisector(function(d) { return d; });
-d3.bisectLeft = d3_bisector.left;
-d3.bisect = d3.bisectRight = d3_bisector.right;
-d3.first = function(array, f) {
- var i = 0,
- n = array.length,
- a = array[0],
- b;
- if (arguments.length === 1) f = d3.ascending;
- while (++i < n) {
- if (f.call(array, a, b = array[i]) > 0) {
- a = b;
- }
- }
- return a;
-};
-d3.last = function(array, f) {
- var i = 0,
- n = array.length,
- a = array[0],
- b;
- if (arguments.length === 1) f = d3.ascending;
- while (++i < n) {
- if (f.call(array, a, b = array[i]) <= 0) {
- a = b;
- }
- }
- return a;
-};
-d3.nest = function() {
- 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,
- valuesByKey = new d3_Map,
- values,
- o = {};
-
- while (++i < n) {
- if (values = valuesByKey.get(keyValue = key(object = array[i]))) {
- values.push(object);
- } else {
- valuesByKey.set(keyValue, [object]);
- }
- }
-
- valuesByKey.forEach(function(keyValue) {
- o[keyValue] = map(valuesByKey.get(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+$)/g, "").replace(/\s+/g, " ");
-}
-d3.range = function(start, stop, step) {
- if (arguments.length < 3) {
- step = 1;
- if (arguments.length < 2) {
- stop = start;
- start = 0;
- }
- }
- if ((stop - start) / step === Infinity) throw new Error("infinite range");
- var range = [],
- k = d3_range_integerScale(Math.abs(step)),
- i = -1,
- j;
- start *= k, stop *= k, step *= k;
- if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k);
- else while ((j = start + step * ++i) < stop) range.push(j / k);
- return range;
-};
-
-function d3_range_integerScale(x) {
- var k = 1;
- while (x * k % 1) k *= 10;
- return k;
-}
-d3.requote = function(s) {
- return s.replace(d3_requote_re, "\\$&");
-};
-
-var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
-d3.round = function(x, n) {
- return n
- ? Math.round(x * (n = Math.pow(10, n))) / n
- : Math.round(x);
-};
-d3.xhr = function(url, mime, callback) {
- var req = new XMLHttpRequest;
- if (arguments.length < 3) callback = mime, mime = null;
- else if (mime && req.overrideMimeType) req.overrideMimeType(mime);
- req.open("GET", url, true);
- if (mime) req.setRequestHeader("Accept", mime);
- req.onreadystatechange = function() {
- if (req.readyState === 4) 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);
-};
-var d3_nsPrefix = {
- svg: "http://www.w3.org/2000/svg",
- xhtml: "http://www.w3.org/1999/xhtml",
- xlink: "http://www.w3.org/1999/xlink",
- xml: "http://www.w3.org/XML/1998/namespace",
- xmlns: "http://www.w3.org/2000/xmlns/"
-};
-
-d3.ns = {
- prefix: d3_nsPrefix,
- qualify: function(name) {
- var i = name.indexOf(":"),
- prefix = name;
- if (i >= 0) {
- prefix = name.substring(0, i);
- name = name.substring(i + 1);
- }
- return d3_nsPrefix.hasOwnProperty(prefix)
- ? {space: d3_nsPrefix[prefix], local: name}
- : name;
- }
-};
-d3.dispatch = function() {
- var dispatch = new d3_dispatch,
- i = -1,
- n = arguments.length;
- while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
- return dispatch;
-};
-
-function d3_dispatch() {}
-
-d3_dispatch.prototype.on = function(type, listener) {
- var i = type.indexOf("."),
- name = "";
-
- // Extract optional namespace, e.g., "click.foo"
- if (i > 0) {
- name = type.substring(i + 1);
- type = type.substring(0, i);
- }
-
- return arguments.length < 2
- ? this[type].on(name)
- : this[type].on(name, listener);
-};
-
-function d3_dispatch_event(dispatch) {
- var listeners = [],
- listenerByName = new d3_Map;
-
- function event() {
- var z = listeners, // defensive reference
- i = -1,
- n = z.length,
- l;
- while (++i < n) if (l = z[i].on) l.apply(this, arguments);
- return dispatch;
- }
-
- event.on = function(name, listener) {
- var l = listenerByName.get(name),
- i;
-
- // return the current listener, if any
- if (arguments.length < 2) return l && l.on;
-
- // remove the old listener, if any (with copy-on-write)
- if (l) {
- l.on = null;
- listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1));
- listenerByName.remove(name);
- }
-
- // add the new listener, if any
- if (listener) listeners.push(listenerByName.set(name, {on: listener}));
-
- return dispatch;
- };
-
- return event;
-}
-// 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],
- scale = 1,
- suffix = "",
- 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 "%": scale = 100; suffix = "%"; type = "f"; break;
- case "p": scale = 100; suffix = "%"; type = "r"; break;
- case "d": integer = true; precision = 0; break;
- case "s": scale = -1; type = "r"; break;
- }
-
- // If no precision is specified for r, fallback to general notation.
- if (type == "r" && !precision) type = "g";
-
- type = d3_format_types.get(type) || d3_format_typeDefault;
-
- return function(value) {
-
- // Return the empty string for floats formatted as ints.
- if (integer && (value % 1)) return "";
-
- // Convert negative to positive, and record the sign prefix.
- var negative = (value < 0) && (value = -value) ? "\u2212" : sign;
-
- // Apply the scale, computing it from the value's exponent for si format.
- if (scale < 0) {
- var prefix = d3.formatPrefix(value, precision);
- value *= prefix.scale;
- suffix = prefix.symbol;
- } else {
- value *= scale;
- }
-
- // Convert to the desired precision.
- value = type(value, 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;
- }
-
- return value + suffix;
- };
-};
-
-// [[fill]align][sign][#][0][width][,][.precision][type]
-var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/;
-
-var d3_format_types = d3.map({
- g: function(x, p) { return x.toPrecision(p); },
- e: function(x, p) { return x.toExponential(p); },
- f: function(x, p) { return x.toFixed(p); },
- r: function(x, p) { return d3.round(x, p = d3_format_precision(x, p)).toFixed(Math.max(0, Math.min(20, p))); }
-});
-
-function d3_format_precision(x, p) {
- return p - (x ? 1 + Math.floor(Math.log(x + Math.pow(10, 1 + Math.floor(Math.log(x) / Math.LN10) - p)) / Math.LN10) : 1);
-}
-
-function d3_format_typeDefault(x) {
- return x + "";
-}
-
-// 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;
-}
-var d3_formatPrefixes = ["y","z","a","f","p","n","μ","m","","k","M","G","T","P","E","Z","Y"].map(d3_formatPrefix);
-
-d3.formatPrefix = function(value, precision) {
- var i = 0;
- if (value) {
- if (value < 0) value *= -1;
- if (precision) value = d3.round(value, d3_format_precision(value, precision));
- i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10);
- i = Math.max(-24, Math.min(24, Math.floor((i <= 0 ? i + 1 : i - 1) / 3) * 3));
- }
- return d3_formatPrefixes[8 + i / 3];
-};
-
-function d3_formatPrefix(d, i) {
- return {
- scale: Math.pow(10, (8 - i) * 3),
- symbol: d
- };
-}
-
-/*
- * 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),
- d3_ease_default = function() { return d3_ease_identity; };
-
-var d3_ease = d3.map({
- linear: d3_ease_default,
- poly: d3_ease_poly,
- quad: function() { return d3_ease_quad; },
- cubic: function() { return d3_ease_cubic; },
- sin: function() { return d3_ease_sin; },
- exp: function() { return d3_ease_exp; },
- circle: function() { return d3_ease_circle; },
- elastic: d3_ease_elastic,
- back: d3_ease_back,
- bounce: function() { return d3_ease_bounce; }
-});
-
-var d3_ease_mode = d3.map({
- "in": d3_ease_identity,
- "out": d3_ease_reverse,
- "in-out": d3_ease_reflect,
- "out-in": function(f) { return d3_ease_reflect(d3_ease_reverse(f)); }
-});
-
-d3.ease = function(name) {
- var i = name.indexOf("-"),
- t = i >= 0 ? name.substring(0, i) : name,
- m = i >= 0 ? name.substring(i + 1) : "in";
- t = d3_ease.get(t) || d3_ease_default;
- m = d3_ease_mode.get(m) || d3_ease_identity;
- return d3_ease_clamp(m(t.apply(null, Array.prototype.slice.call(arguments, 1))));
-};
-
-function d3_ease_clamp(f) {
- return function(t) {
- return t <= 0 ? 0 : t >= 1 ? 1 : f(t);
- };
-}
-
-function d3_ease_reverse(f) {
- return function(t) {
- return 1 - f(1 - t);
- };
-}
-
-function d3_ease_reflect(f) {
- return function(t) {
- return .5 * (t < .5 ? f(2 * t) : (2 - f(2 - 2 * t)));
- };
-}
-
-function d3_ease_identity(t) {
- return t;
-}
-
-function d3_ease_poly(e) {
- return function(t) {
- return Math.pow(t, e);
- };
-}
-
-function d3_ease_sin(t) {
- return 1 - Math.cos(t * Math.PI / 2);
-}
-
-function d3_ease_exp(t) {
- return Math.pow(2, 10 * (t - 1));
-}
-
-function d3_ease_circle(t) {
- return 1 - Math.sqrt(1 - t * t);
-}
-
-function d3_ease_elastic(a, p) {
- var s;
- if (arguments.length < 2) p = 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;
-
-function d3_eventCancel() {
- d3.event.stopPropagation();
- d3.event.preventDefault();
-}
-
-function d3_eventSource() {
- var e = d3.event, s;
- while (s = e.sourceEvent) e = s;
- return e;
-}
-
-// Like d3.dispatch, but for custom events abstracting native UI events. These
-// events have a target component (such as a brush), a target element (such as
-// the svg:g element containing the brush) and the standard arguments `d` (the
-// target element's data) and `i` (the selection index of the target element).
-function d3_eventDispatch(target) {
- var dispatch = new d3_dispatch,
- i = 0,
- n = arguments.length;
-
- while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
-
- // Creates a dispatch context for the specified `thiz` (typically, the target
- // DOM element that received the source event) and `argumentz` (typically, the
- // data `d` and index `i` of the target element). The returned function can be
- // used to dispatch an event to any registered listeners; the function takes a
- // single argument as input, being the event to dispatch. The event must have
- // a "type" attribute which corresponds to a type registered in the
- // constructor. This context will automatically populate the "sourceEvent" and
- // "target" attributes of the event, as well as setting the `d3.event` global
- // for the duration of the notification.
- dispatch.of = function(thiz, argumentz) {
- return function(e1) {
- try {
- var e0 =
- e1.sourceEvent = d3.event;
- e1.target = target;
- d3.event = e1;
- dispatch[e1.type].apply(thiz, argumentz);
- } finally {
- d3.event = e0;
- }
- };
- };
-
- return dispatch;
-}
-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.interpolateTransform = function(a, b) {
- var s = [], // string constants and placeholders
- q = [], // number interpolators
- n,
- A = d3.transform(a),
- B = d3.transform(b),
- ta = A.translate,
- tb = B.translate,
- ra = A.rotate,
- rb = B.rotate,
- wa = A.skew,
- wb = B.skew,
- ka = A.scale,
- kb = B.scale;
-
- if (ta[0] != tb[0] || ta[1] != tb[1]) {
- s.push("translate(", null, ",", null, ")");
- q.push({i: 1, x: d3.interpolateNumber(ta[0], tb[0])}, {i: 3, x: d3.interpolateNumber(ta[1], tb[1])});
- } else if (tb[0] || tb[1]) {
- s.push("translate(" + tb + ")");
- } else {
- s.push("");
- }
-
- if (ra != rb) {
- q.push({i: s.push(s.pop() + "rotate(", null, ")") - 2, x: d3.interpolateNumber(ra, rb)});
- } else if (rb) {
- s.push(s.pop() + "rotate(" + rb + ")");
- }
-
- if (wa != wb) {
- q.push({i: s.push(s.pop() + "skewX(", null, ")") - 2, x: d3.interpolateNumber(wa, wb)});
- } else if (wb) {
- s.push(s.pop() + "skewX(" + wb + ")");
- }
-
- if (ka[0] != kb[0] || ka[1] != kb[1]) {
- n = s.push(s.pop() + "scale(", null, ",", null, ")");
- q.push({i: n - 4, x: d3.interpolateNumber(ka[0], kb[0])}, {i: n - 2, x: d3.interpolateNumber(ka[1], kb[1])});
- } else if (kb[0] != 1 || kb[1] != 1) {
- s.push(s.pop() + "scale(" + kb + ")");
- }
-
- n = q.length;
- return function(t) {
- var i = -1, o;
- while (++i < n) s[(o = q[i]).i] = o.x(t);
- return s.join("");
- };
-};
-
-d3.interpolateRgb = function(a, b) {
- a = d3.rgb(a);
- b = d3.rgb(b);
- var ar = a.r,
- ag = a.g,
- ab = a.b,
- br = b.r - ar,
- bg = b.g - ag,
- bb = b.b - ab;
- return function(t) {
- return "#"
- + d3_rgb_hex(Math.round(ar + br * t))
- + d3_rgb_hex(Math.round(ag + bg * t))
- + d3_rgb_hex(Math.round(ab + bb * t));
- };
-};
-
-// 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+)(?:[eE][-+]?\d+)?/g;
-
-function d3_interpolateByName(n) {
- return n == "transform"
- ? d3.interpolateTransform
- : d3.interpolate;
-}
-
-d3.interpolators = [
- d3.interpolateObject,
- function(a, b) { return (b instanceof Array) && d3.interpolateArray(a, b); },
- function(a, b) { return (typeof a === "string" || typeof b === "string") && d3.interpolateString(a + "", b + ""); },
- function(a, b) { return (typeof b === "string" ? d3_rgb_names.has(b) || /^(#|rgb\(|hsl\()/.test(b) : b instanceof d3_Rgb || b instanceof d3_Hsl) && d3.interpolateRgb(a, b); },
- function(a, b) { return !isNaN(a = +a) && !isNaN(b = +b) && 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
- ? (r instanceof d3_Rgb ? d3_rgb(r.r, r.g, r.b)
- : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb))
- : d3_rgb(~~r, ~~g, ~~b);
-};
-
-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.floor(k * this.r),
- Math.floor(k * this.g),
- 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" + Math.max(0, v).toString(16)
- : Math.min(255, 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.get(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 = d3.map({
- aliceblue: "#f0f8ff",
- antiquewhite: "#faebd7",
- aqua: "#00ffff",
- aquamarine: "#7fffd4",
- azure: "#f0ffff",
- beige: "#f5f5dc",
- bisque: "#ffe4c4",
- black: "#000000",
- blanchedalmond: "#ffebcd",
- blue: "#0000ff",
- blueviolet: "#8a2be2",
- brown: "#a52a2a",
- burlywood: "#deb887",
- cadetblue: "#5f9ea0",
- chartreuse: "#7fff00",
- chocolate: "#d2691e",
- coral: "#ff7f50",
- cornflowerblue: "#6495ed",
- cornsilk: "#fff8dc",
- crimson: "#dc143c",
- cyan: "#00ffff",
- darkblue: "#00008b",
- darkcyan: "#008b8b",
- darkgoldenrod: "#b8860b",
- darkgray: "#a9a9a9",
- darkgreen: "#006400",
- darkgrey: "#a9a9a9",
- darkkhaki: "#bdb76b",
- darkmagenta: "#8b008b",
- darkolivegreen: "#556b2f",
- darkorange: "#ff8c00",
- darkorchid: "#9932cc",
- darkred: "#8b0000",
- darksalmon: "#e9967a",
- darkseagreen: "#8fbc8f",
- darkslateblue: "#483d8b",
- darkslategray: "#2f4f4f",
- darkslategrey: "#2f4f4f",
- darkturquoise: "#00ced1",
- darkviolet: "#9400d3",
- deeppink: "#ff1493",
- deepskyblue: "#00bfff",
- dimgray: "#696969",
- dimgrey: "#696969",
- dodgerblue: "#1e90ff",
- firebrick: "#b22222",
- floralwhite: "#fffaf0",
- forestgreen: "#228b22",
- fuchsia: "#ff00ff",
- gainsboro: "#dcdcdc",
- ghostwhite: "#f8f8ff",
- gold: "#ffd700",
- goldenrod: "#daa520",
- gray: "#808080",
- green: "#008000",
- greenyellow: "#adff2f",
- grey: "#808080",
- honeydew: "#f0fff0",
- hotpink: "#ff69b4",
- indianred: "#cd5c5c",
- indigo: "#4b0082",
- ivory: "#fffff0",
- khaki: "#f0e68c",
- lavender: "#e6e6fa",
- lavenderblush: "#fff0f5",
- lawngreen: "#7cfc00",
- lemonchiffon: "#fffacd",
- lightblue: "#add8e6",
- lightcoral: "#f08080",
- lightcyan: "#e0ffff",
- lightgoldenrodyellow: "#fafad2",
- lightgray: "#d3d3d3",
- lightgreen: "#90ee90",
- lightgrey: "#d3d3d3",
- lightpink: "#ffb6c1",
- lightsalmon: "#ffa07a",
- lightseagreen: "#20b2aa",
- lightskyblue: "#87cefa",
- lightslategray: "#778899",
- lightslategrey: "#778899",
- lightsteelblue: "#b0c4de",
- lightyellow: "#ffffe0",
- lime: "#00ff00",
- limegreen: "#32cd32",
- linen: "#faf0e6",
- magenta: "#ff00ff",
- maroon: "#800000",
- mediumaquamarine: "#66cdaa",
- mediumblue: "#0000cd",
- mediumorchid: "#ba55d3",
- mediumpurple: "#9370db",
- mediumseagreen: "#3cb371",
- mediumslateblue: "#7b68ee",
- mediumspringgreen: "#00fa9a",
- mediumturquoise: "#48d1cc",
- mediumvioletred: "#c71585",
- midnightblue: "#191970",
- mintcream: "#f5fffa",
- mistyrose: "#ffe4e1",
- moccasin: "#ffe4b5",
- navajowhite: "#ffdead",
- navy: "#000080",
- oldlace: "#fdf5e6",
- olive: "#808000",
- olivedrab: "#6b8e23",
- orange: "#ffa500",
- orangered: "#ff4500",
- orchid: "#da70d6",
- palegoldenrod: "#eee8aa",
- palegreen: "#98fb98",
- paleturquoise: "#afeeee",
- palevioletred: "#db7093",
- papayawhip: "#ffefd5",
- peachpuff: "#ffdab9",
- peru: "#cd853f",
- pink: "#ffc0cb",
- plum: "#dda0dd",
- powderblue: "#b0e0e6",
- purple: "#800080",
- red: "#ff0000",
- rosybrown: "#bc8f8f",
- royalblue: "#4169e1",
- saddlebrown: "#8b4513",
- salmon: "#fa8072",
- sandybrown: "#f4a460",
- seagreen: "#2e8b57",
- seashell: "#fff5ee",
- sienna: "#a0522d",
- silver: "#c0c0c0",
- skyblue: "#87ceeb",
- slateblue: "#6a5acd",
- slategray: "#708090",
- slategrey: "#708090",
- snow: "#fffafa",
- springgreen: "#00ff7f",
- steelblue: "#4682b4",
- tan: "#d2b48c",
- teal: "#008080",
- thistle: "#d8bfd8",
- tomato: "#ff6347",
- turquoise: "#40e0d0",
- violet: "#ee82ee",
- wheat: "#f5deb3",
- white: "#ffffff",
- whitesmoke: "#f5f5f5",
- yellow: "#ffff00",
- yellowgreen: "#9acd32"
-});
-
-d3_rgb_names.forEach(function(key, value) {
- d3_rgb_names.set(key, d3_rgb_parse(value, d3_rgb, d3_hsl_rgb));
-});
-d3.hsl = function(h, s, l) {
- return arguments.length === 1
- ? (h instanceof d3_Hsl ? d3_hsl(h.h, h.s, h.l)
- : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl))
- : d3_hsl(+h, +s, +l);
-};
-
-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 this.rgb().toString();
-};
-
-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); },
- d3_selectRoot = document.documentElement,
- d3_selectMatcher = d3_selectRoot.matchesSelector || d3_selectRoot.webkitMatchesSelector || d3_selectRoot.mozMatchesSelector || d3_selectRoot.msMatchesSelector || d3_selectRoot.oMatchesSelector,
- d3_selectMatches = function(n, s) { return d3_selectMatcher.call(n, s); };
-
-// 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)); };
- d3_selectMatches = Sizzle.matchesSelector;
-}
-
-var d3_selectionPrototype = [];
-
-d3.selection = function() {
- return d3_selectionRoot;
-};
-
-d3.selection.prototype = d3_selectionPrototype;
-d3_selectionPrototype.select = function(selector) {
- var subgroups = [],
- subgroup,
- subnode,
- group,
- node;
-
- if (typeof selector !== "function") selector = d3_selection_selector(selector);
-
- for (var j = -1, m = this.length; ++j < m;) {
- subgroups.push(subgroup = []);
- subgroup.parentNode = (group = this[j]).parentNode;
- for (var i = -1, n = group.length; ++i < n;) {
- if (node = group[i]) {
- subgroup.push(subnode = selector.call(node, node.__data__, i));
- if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
- } else {
- subgroup.push(null);
- }
- }
- }
-
- return d3_selection(subgroups);
-};
-
-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 names = name.split(d3_selection_classedWhitespace),
- n = names.length,
- i = -1;
- if (arguments.length > 1) {
- while (++i < n) d3_selection_classed.call(this, names[i], value);
- return this;
- } else {
- while (++i < n) if (!d3_selection_classed.call(this, names[i])) return false;
- return true;
- }
-};
-
-var d3_selection_classedWhitespace = /\s+/g;
-
-function d3_selection_classed(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() { var v = value.apply(this, arguments); this.textContent = v == null ? "" : v; } : value == null
- ? function() { this.textContent = ""; }
- : function() { this.textContent = value; });
-};
-d3_selectionPrototype.html = function(value) {
- return arguments.length < 1
- ? this.node().innerHTML : this.each(typeof value === "function"
- ? function() { var v = value.apply(this, arguments); this.innerHTML = v == null ? "" : v; } : value == null
- ? function() { this.innerHTML = ""; }
- : function() { this.innerHTML = value; });
-};
-// TODO append(node)?
-// TODO append(function)?
-d3_selectionPrototype.append = function(name) {
- name = d3.ns.qualify(name);
-
- function append() {
- return this.appendChild(document.createElementNS(this.namespaceURI, 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.createElementNS(this.namespaceURI, 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);
- });
-};
-d3_selectionPrototype.data = function(value, key) {
- var i = -1,
- n = this.length,
- group,
- node;
-
- // If no value is specified, return the first value.
- if (!arguments.length) {
- value = new Array(n = (group = this[0]).length);
- while (++i < n) {
- if (node = group[i]) {
- value[i] = node.__data__;
- }
- }
- return value;
- }
-
- function bind(group, groupData) {
- var i,
- n = group.length,
- m = groupData.length,
- n0 = Math.min(n, m),
- n1 = Math.max(n, m),
- updateNodes = [],
- enterNodes = [],
- exitNodes = [],
- node,
- nodeData;
-
- if (key) {
- var nodeByKeyValue = new d3_Map,
- keyValues = [],
- keyValue,
- j = groupData.length;
-
- for (i = -1; ++i < n;) {
- keyValue = key.call(node = group[i], node.__data__, i);
- if (nodeByKeyValue.has(keyValue)) {
- exitNodes[j++] = node; // duplicate key
- } else {
- nodeByKeyValue.set(keyValue, node);
- }
- keyValues.push(keyValue);
- }
-
- for (i = -1; ++i < m;) {
- keyValue = key.call(groupData, nodeData = groupData[i], i)
- if (nodeByKeyValue.has(keyValue)) {
- updateNodes[i] = node = nodeByKeyValue.get(keyValue);
- node.__data__ = nodeData;
- enterNodes[i] = exitNodes[i] = null;
- } else {
- enterNodes[i] = d3_selection_dataNode(nodeData);
- updateNodes[i] = exitNodes[i] = null;
- }
- nodeByKeyValue.remove(keyValue);
- }
-
- for (i = -1; ++i < n;) {
- if (nodeByKeyValue.has(keyValues[i])) {
- exitNodes[i] = group[i];
- }
- }
- } else {
- for (i = -1; ++i < n0;) {
- node = group[i];
- nodeData = groupData[i];
- if (node) {
- node.__data__ = nodeData;
- updateNodes[i] = node;
- enterNodes[i] = exitNodes[i] = null;
- } else {
- enterNodes[i] = d3_selection_dataNode(nodeData);
- updateNodes[i] = exitNodes[i] = null;
- }
- }
- for (; i < m; ++i) {
- enterNodes[i] = d3_selection_dataNode(groupData[i]);
- updateNodes[i] = exitNodes[i] = null;
- }
- for (; i < n1; ++i) {
- exitNodes[i] = group[i];
- enterNodes[i] = updateNodes[i] = null;
- }
- }
-
- enterNodes.update
- = updateNodes;
-
- enterNodes.parentNode
- = updateNodes.parentNode
- = exitNodes.parentNode
- = group.parentNode;
-
- enter.push(enterNodes);
- update.push(updateNodes);
- exit.push(exitNodes);
- }
-
- var enter = d3_selection_enter([]),
- update = d3_selection([]),
- exit = d3_selection([]);
-
- if (typeof value === "function") {
- while (++i < n) {
- bind(group = this[i], value.call(group, group.parentNode.__data__, i));
- }
- } else {
- while (++i < n) {
- bind(group = this[i], value);
- }
- }
-
- update.enter = function() { return enter; };
- update.exit = function() { return exit; };
- return update;
-};
-
-function d3_selection_dataNode(data) {
- return {__data__: data};
-}
-d3_selectionPrototype.datum =
-d3_selectionPrototype.map = function(value) {
- return arguments.length < 1
- ? this.property("__data__")
- : this.property("__data__", value);
-};
-d3_selectionPrototype.filter = function(filter) {
- var subgroups = [],
- subgroup,
- group,
- node;
-
- if (typeof filter !== "function") filter = d3_selection_filter(filter);
-
- for (var j = 0, m = this.length; j < m; j++) {
- subgroups.push(subgroup = []);
- subgroup.parentNode = (group = this[j]).parentNode;
- for (var i = 0, n = group.length; i < n; i++) {
- if ((node = group[i]) && filter.call(node, node.__data__, i)) {
- subgroup.push(node);
- }
- }
- }
-
- return d3_selection(subgroups);
-};
-
-function d3_selection_filter(selector) {
- return function() {
- return d3_selectMatches(this, selector);
- };
-}
-d3_selectionPrototype.order = function() {
- for (var j = -1, m = this.length; ++j < m;) {
- for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0;) {
- if (node = group[i]) {
- if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);
- next = node;
- }
- }
- }
- return this;
-};
-d3_selectionPrototype.sort = function(comparator) {
- comparator = d3_selection_sortComparator.apply(this, arguments);
- for (var j = -1, m = this.length; ++j < m;) this[j].sort(comparator);
- return this.order();
-};
-
-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,
- o = node[name];
-
- // remove the old listener, if any (using the previously-set capture)
- if (o) {
- node.removeEventListener(type, o, o.$);
- delete node[name];
- }
-
- // add the new listener, if any (remembering the capture flag)
- if (listener) {
- node.addEventListener(type, node[name] = l, l.$ = capture);
- l._ = listener; // stash the unwrapped listener for get
- }
-
- // 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;
- }
- }
- });
-};
-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: d3_transitionDelay, duration: d3_transitionDuration} : null);
- }
- }
-
- return d3_transition(subgroups, d3_transitionId || ++d3_transitionNextId, Date.now());
-};
-var d3_selectionRoot = d3_selection([[document]]);
-
-d3_selectionRoot[0].parentNode = d3_selectRoot;
-
-// 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_selection_enter(selection) {
- d3_arraySubclass(selection, d3_selection_enterPrototype);
- return selection;
-}
-
-var d3_selection_enterPrototype = [];
-
-d3.selection.enter = d3_selection_enter;
-d3.selection.enter.prototype = d3_selection_enterPrototype;
-
-d3_selection_enterPrototype.append = d3_selectionPrototype.append;
-d3_selection_enterPrototype.insert = d3_selectionPrototype.insert;
-d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;
-d3_selection_enterPrototype.node = d3_selectionPrototype.node;
-d3_selection_enterPrototype.select = function(selector) {
- var subgroups = [],
- subgroup,
- subnode,
- upgroup,
- group,
- node;
-
- for (var j = -1, m = this.length; ++j < m;) {
- upgroup = (group = this[j]).update;
- subgroups.push(subgroup = []);
- subgroup.parentNode = group.parentNode;
- for (var i = -1, n = group.length; ++i < n;) {
- if (node = group[i]) {
- subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i));
- subnode.__data__ = node.__data__;
- } else {
- subgroup.push(null);
- }
- }
- }
-
- return d3_selection(subgroups);
-};
-function d3_transition(groups, id, time) {
- d3_arraySubclass(groups, d3_transitionPrototype);
-
- var tweens = new d3_Map,
- event = d3.dispatch("start", "end"),
- ease = d3_transitionEase;
-
- groups.id = id;
-
- groups.time = time;
-
- groups.tween = function(name, tween) {
- if (arguments.length < 2) return tweens.get(name);
- if (tween == null) tweens.remove(name);
- else tweens.set(name, tween);
- return groups;
- };
-
- groups.ease = function(value) {
- if (!arguments.length) return ease;
- ease = typeof value === "function" ? value : d3.ease.apply(d3, arguments);
- return groups;
- };
-
- groups.each = function(type, listener) {
- if (arguments.length < 2) return d3_transition_each.call(groups, type);
- event.on(type, listener);
- return groups;
- };
-
- d3.timer(function(elapsed) {
- 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, time);
-
- function start(elapsed) {
- if (lock.active > id) return stop();
- lock.active = id;
-
- tweens.forEach(function(key, value) {
- if (tween = value.call(node, d, i)) {
- tweened.push(tween);
- }
- });
-
- event.start.call(node, d, i);
- if (!tick(elapsed)) d3.timer(tick, 0, time);
- return 1;
- }
-
- function tick(elapsed) {
- if (lock.active !== id) return stop();
-
- var t = (elapsed - delay) / duration,
- e = ease(t),
- n = tweened.length;
-
- while (n > 0) {
- tweened[--n].call(node, e);
- }
-
- if (t >= 1) {
- stop();
- d3_transitionId = id;
- event.end.call(node, d, i);
- d3_transitionId = 0;
- return 1;
- }
- }
-
- function stop() {
- if (!--lock.count) delete node.__transition__;
- return 1;
- }
- });
- return 1;
- }, 0, time);
-
- return groups;
-}
-
-var d3_transitionRemove = {};
-
-function d3_transitionNull(d, i, a) {
- return a != "" && d3_transitionRemove;
-}
-
-function d3_transitionTween(name, b) {
- var interpolate = d3_interpolateByName(name);
-
- function transitionFunction(d, i, a) {
- var v = b.call(this, d, i);
- return v == null
- ? a != "" && d3_transitionRemove
- : a != v && interpolate(a, v);
- }
-
- function transitionString(d, i, a) {
- return a != b && interpolate(a, b);
- }
-
- return typeof b === "function" ? transitionFunction
- : b == null ? d3_transitionNull
- : (b += "", transitionString);
-}
-
-var d3_transitionPrototype = [],
- d3_transitionNextId = 0,
- d3_transitionId = 0,
- d3_transitionDefaultDelay = 0,
- d3_transitionDefaultDuration = 250,
- d3_transitionDefaultEase = d3.ease("cubic-in-out"),
- d3_transitionDelay = d3_transitionDefaultDelay,
- d3_transitionDuration = d3_transitionDefaultDuration,
- d3_transitionEase = d3_transitionDefaultEase;
-
-d3_transitionPrototype.call = d3_selectionPrototype.call;
-
-d3.transition = function(selection) {
- return arguments.length
- ? (d3_transitionId ? selection.transition() : selection)
- : d3_selectionRoot.transition();
-};
-
-d3.transition.prototype = d3_transitionPrototype;
-d3_transitionPrototype.select = function(selector) {
- var subgroups = [],
- subgroup,
- subnode,
- node;
-
- if (typeof selector !== "function") selector = d3_selection_selector(selector);
-
- for (var j = -1, m = this.length; ++j < m;) {
- subgroups.push(subgroup = []);
- for (var group = this[j], i = -1, n = group.length; ++i < n;) {
- if ((node = group[i]) && (subnode = selector.call(node.node, node.node.__data__, i))) {
- if ("__data__" in node.node) subnode.__data__ = node.node.__data__;
- subgroup.push({node: subnode, delay: node.delay, duration: node.duration});
- } else {
- subgroup.push(null);
- }
- }
- }
-
- return d3_transition(subgroups, this.id, this.time).ease(this.ease());
-};
-d3_transitionPrototype.selectAll = function(selector) {
- var subgroups = [],
- subgroup,
- subnodes,
- node;
-
- if (typeof selector !== "function") selector = d3_selection_selectorAll(selector);
-
- for (var j = -1, m = this.length; ++j < m;) {
- for (var group = this[j], i = -1, n = group.length; ++i < n;) {
- if (node = group[i]) {
- subnodes = selector.call(node.node, node.node.__data__, i);
- subgroups.push(subgroup = []);
- for (var k = -1, o = subnodes.length; ++k < o;) {
- subgroup.push({node: subnodes[k], delay: node.delay, duration: node.duration});
- }
- }
- }
- }
-
- return d3_transition(subgroups, this.id, this.time).ease(this.ease());
-};
-d3_transitionPrototype.attr = function(name, value) {
- return this.attrTween(name, d3_transitionTween(name, value));
-};
-
-d3_transitionPrototype.attrTween = function(nameNS, tween) {
- var name = d3.ns.qualify(nameNS);
-
- function attrTween(d, i) {
- var f = tween.call(this, d, i, this.getAttribute(name));
- return f === d3_transitionRemove
- ? (this.removeAttribute(name), null)
- : f && function(t) { this.setAttribute(name, f(t)); };
- }
-
- function attrTweenNS(d, i) {
- var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
- return f === d3_transitionRemove
- ? (this.removeAttributeNS(name.space, name.local), null)
- : f && function(t) { this.setAttributeNS(name.space, name.local, f(t)); };
- }
-
- return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween);
-};
-d3_transitionPrototype.style = function(name, value, priority) {
- if (arguments.length < 3) priority = "";
- return this.styleTween(name, d3_transitionTween(name, 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 === d3_transitionRemove
- ? (this.style.removeProperty(name), null)
- : f && function(t) { this.style.setProperty(name, f(t), priority); };
- });
-};
-d3_transitionPrototype.text = function(value) {
- return this.tween("text", function(d, i) {
- this.textContent = typeof value === "function"
- ? value.call(this, d, i)
- : value;
- });
-};
-d3_transitionPrototype.remove = function() {
- return this.each("end.transition", function() {
- var p;
- if (!this.__transition__ && (p = this.parentNode)) p.removeChild(this);
- });
-};
-d3_transitionPrototype.delay = function(value) {
- var groups = this;
- return groups.each(typeof value === "function"
- ? function(d, i, j) { groups[j][i].delay = value.apply(this, arguments) | 0; }
- : (value = value | 0, 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 = Math.max(1, value.apply(this, arguments) | 0); }
- : (value = Math.max(1, value | 0), function(d, i, j) { groups[j][i].duration = value; }));
-};
-function d3_transition_each(callback) {
- var id = d3_transitionId,
- ease = d3_transitionEase,
- delay = d3_transitionDelay,
- duration = d3_transitionDuration;
-
- d3_transitionId = this.id;
- d3_transitionEase = this.ease();
- 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) {
- d3_transitionDelay = this[j][i].delay;
- d3_transitionDuration = this[j][i].duration;
- callback.call(node = node.node, node.__data__, i, j);
- }
- }
- }
-
- d3_transitionId = id;
- d3_transitionEase = ease;
- d3_transitionDelay = delay;
- d3_transitionDuration = duration;
- 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); };
-d3.transform = function(string) {
- var g = document.createElementNS(d3.ns.prefix.svg, "g"),
- identity = {a: 1, b: 0, c: 0, d: 1, e: 0, f: 0};
- return (d3.transform = function(string) {
- g.setAttribute("transform", string);
- var t = g.transform.baseVal.consolidate();
- return new d3_transform(t ? t.matrix : identity);
- })(string);
-};
-
-// Compute x-scale and normalize the first row.
-// Compute shear and make second row orthogonal to first.
-// Compute y-scale and normalize the second row.
-// Finally, compute the rotation.
-function d3_transform(m) {
- var r0 = [m.a, m.b],
- r1 = [m.c, m.d],
- kx = d3_transformNormalize(r0),
- kz = d3_transformDot(r0, r1),
- ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0;
- if (r0[0] * r1[1] < r1[0] * r0[1]) {
- r0[0] *= -1;
- r0[1] *= -1;
- kx *= -1;
- kz *= -1;
- }
- this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_transformDegrees;
- this.translate = [m.e, m.f];
- this.scale = [kx, ky];
- this.skew = ky ? Math.atan2(kz, ky) * d3_transformDegrees : 0;
-};
-
-d3_transform.prototype.toString = function() {
- return "translate(" + this.translate
- + ")rotate(" + this.rotate
- + ")skewX(" + this.skew
- + ")scale(" + this.scale
- + ")";
-};
-
-function d3_transformDot(a, b) {
- return a[0] * b[0] + a[1] * b[1];
-}
-
-function d3_transformNormalize(a) {
- var k = Math.sqrt(d3_transformDot(a, a));
- if (k) {
- a[0] /= k;
- a[1] /= k;
- }
- return k;
-}
-
-function d3_transformCombine(a, b, k) {
- a[0] += k * b[0];
- a[1] += k * b[1];
- return a;
-}
-
-var d3_transformDegrees = 180 / Math.PI;
-d3.mouse = function(container) {
- return d3_mousePoint(container, d3_eventSource());
-};
-
-// https://bugs.webkit.org/show_bug.cgi?id=44083
-var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0;
-
-function d3_mousePoint(container, e) {
- var svg = container.ownerSVGElement || container;
- if (svg.createSVGPoint) {
- var point = svg.createSVGPoint();
- if ((d3_mouse_bug44083 < 0) && (window.scrollX || window.scrollY)) {
- svg = d3.select(document.body)
- .append("svg")
- .style("position", "absolute")
- .style("top", 0)
- .style("left", 0);
- var ctm = svg[0][0].getScreenCTM();
- d3_mouse_bug44083 = !(ctm.f || ctm.e);
- svg.remove();
- }
- if (d3_mouse_bug44083) {
- point.x = e.pageX;
- point.y = e.pageY;
- } else {
- point.x = e.clientX;
- point.y = e.clientY;
- }
- point = point.matrixTransform(container.getScreenCTM().inverse());
- return [point.x, point.y];
- }
- var rect = container.getBoundingClientRect();
- return [e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop];
-};
-d3.touches = function(container, touches) {
- if (arguments.length < 2) touches = d3_eventSource().touches;
- return touches ? d3_array(touches).map(function(touch) {
- var point = d3_mousePoint(container, touch);
- point.identifier = touch.identifier;
- return point;
- }) : [];
-};
-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_scaleRange(scale) {
- return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range());
-}
-function d3_scale_nice(domain, nice) {
- var i0 = 0,
- i1 = domain.length - 1,
- x0 = domain[i0],
- x1 = domain[i1],
- dx;
-
- if (x1 < x0) {
- dx = i0; i0 = i1; i1 = dx;
- dx = x0; x0 = x1; x1 = dx;
- }
-
- if (dx = x1 - x0) {
- nice = nice(dx);
- 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 = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear,
- uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;
- output = linear(domain, range, uninterpolate, interpolate);
- input = linear(range, domain, uninterpolate, d3.interpolate);
- return scale;
- }
-
- function scale(x) {
- return output(x);
- }
-
- // 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) {
- return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
-}
-
-function d3_scale_linearNice(dx) {
- dx = Math.pow(10, Math.round(Math.log(dx) / Math.LN10) - 1);
- return {
- floor: function(x) { return Math.floor(x / dx) * dx; },
- ceil: function(x) { return Math.ceil(x / dx) * dx; }
- };
-}
-
-function d3_scale_linearTickRange(domain, m) {
- var extent = d3_scaleExtent(domain),
- span = extent[1] - extent[0],
- step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)),
- err = m / span * step;
-
- // 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,
- k = Math.min(domain.length, range.length) - 1;
-
- // Handle descending domains.
- if (domain[k] < domain[0]) {
- domain = domain.slice().reverse();
- range = range.slice().reverse();
- }
-
- while (++j <= k) {
- u.push(uninterpolate(domain[j - 1], domain[j]));
- i.push(interpolate(range[j - 1], range[j]));
- }
-
- return function(x) {
- var j = d3.bisect(domain, x, 1, k) - 1;
- return i[j](u[j](x));
- };
-}
-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 = pow(extent[0]),
- v = pow(extent[1]);
- if (log === d3_scale_logn) {
- ticks.push(pow(i));
- for (; i++ < j;) for (var k = 9; k > 0; k--) ticks.push(pow(i) * k);
- } else {
- for (; i < j; i++) for (var k = 1; k < 10; k++) ticks.push(pow(i) * k);
- ticks.push(pow(i));
- }
- for (i = 0; ticks[i] < u; i++) {} // 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-12, Math.floor) : (e = 1e-12, Math.ceil),
- e;
- return function(d) {
- return d / pow(f(log(d) + e)) < k ? format(d) : "";
- };
- };
-
- scale.copy = function() {
- return d3_scale_log(linear.copy(), log);
- };
-
- return d3_scale_linearRebind(scale, linear);
-}
-
-var d3_scale_logFormat = d3.format(".0e");
-
-function d3_scale_logp(x) {
- return Math.log(x < 0 ? 0 : x) / Math.LN10;
-}
-
-function d3_scale_logn(x) {
- return -Math.log(x > 0 ? 0 : -x) / Math.LN10;
-}
-
-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.get(x) || index.set(x, domain.push(x))) - 1) % range.length];
- }
-
- function steps(start, step) {
- return d3.range(domain.length).map(function(i) { return start + step * i; });
- }
-
- scale.domain = function(x) {
- if (!arguments.length) return domain;
- domain = [];
- index = new d3_Map;
- var i = -1, n = x.length, xi;
- while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi));
- return scale[ranger.t](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 = steps(domain.length < 2 ? (start + stop) / 2 : start + step * padding / 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 reverse = x[1] < x[0],
- start = x[reverse - 0],
- stop = x[1 - reverse],
- step = (stop - start) / (domain.length + padding);
- range = steps(start + step * padding, step);
- if (reverse) range.reverse();
- 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 reverse = x[1] < x[0],
- start = x[reverse - 0],
- stop = x[1 - reverse],
- step = Math.floor((stop - start) / (domain.length + padding)),
- error = stop - start - (domain.length - padding) * step;
- range = steps(start + Math.round(error / 2), step);
- if (reverse) range.reverse();
- rangeBand = Math.round(step * (1 - padding));
- ranger = {t: "rangeRoundBands", x: x, p: padding};
- return scale;
- };
-
- scale.rangeBand = function() {
- return rangeBand;
- };
-
- scale.rangeExtent = function() {
- return d3_scaleExtent(ranger.x);
- };
-
- 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.scale.identity = function() {
- return d3_scale_identity([0, 1]);
-};
-
-function d3_scale_identity(domain) {
-
- function identity(x) { return +x; }
-
- identity.invert = identity;
-
- identity.domain = identity.range = function(x) {
- if (!arguments.length) return domain;
- domain = x.map(identity);
- return identity;
- };
-
- identity.ticks = function(m) {
- return d3_scale_linearTicks(domain, m);
- };
-
- identity.tickFormat = function(m) {
- return d3_scale_linearTickFormat(domain, m);
- };
-
- identity.copy = function() {
- return d3_scale_identity(domain);
- };
-
- return identity;
-}
-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 = d3_svg_lineInterpolatorDefault,
- interpolator = d3_svg_lineInterpolators.get(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;
- if (!d3_svg_lineInterpolators.has(v += "")) v = d3_svg_lineInterpolatorDefault;
- interpolator = d3_svg_lineInterpolators.get(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];
-}
-
-var d3_svg_lineInterpolatorDefault = "linear";
-
-// The various interpolators supported by the `line` class.
-var d3_svg_lineInterpolators = d3.map({
- "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,
- i0,
- i1,
- 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" + i0(projection(points1), tension)
- + "L" + i1(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;
- if (!d3_svg_lineInterpolators.has(x += "")) x = d3_svg_lineInterpolatorDefault;
- i0 = d3_svg_lineInterpolators.get(interpolate = x);
- i1 = i0.reverse || i0;
- return area;
- };
-
- area.tension = function(x) {
- if (!arguments.length) return tension;
- tension = x;
- return area;
- };
-
- return area.interpolate("linear");
-}
-
-d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;
-d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;
-
-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, s.a1 - s.a0) + (equals(s, t)
- ? curve(s.r, s.p1, s.r, s.p0)
- : curve(s.r, s.p1, t.r, t.p0)
- + arc(t.r, t.p1, t.a1 - t.a0)
- + curve(t.r, t.p1, s.r, s.p0))
- + "Z";
- }
-
- function subgroup(self, f, d, i) {
- var subgroup = f.call(self, d, i),
- r = radius.call(self, subgroup, i),
- a0 = startAngle.call(self, subgroup, i) + d3_svg_arcOffset,
- a1 = endAngle.call(self, subgroup, i) + d3_svg_arcOffset;
- return {
- r: r,
- a0: a0,
- a1: a1,
- p0: [r * Math.cos(a0), r * Math.sin(a0)],
- p1: [r * Math.cos(a1), r * Math.sin(a1)]
- };
- }
-
- function equals(a, b) {
- return a.a0 == b.a0 && a.a1 == b.a1;
- }
-
- function arc(r, p, a) {
- return "A" + r + "," + r + " 0 " + +(a > Math.PI) + ",1 " + p;
- }
-
- function curve(r0, p0, r1, p1) {
- return "Q 0,0 " + p1;
- }
-
- 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 = d3.mouse;
-d3.svg.touches = d3.touches;
-d3.svg.symbol = function() {
- var type = d3_svg_symbolType,
- size = d3_svg_symbolSize;
-
- function symbol(d, i) {
- return (d3_svg_symbols.get(type.call(this, d, i))
- || d3_svg_symbolCircle)
- (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";
-}
-
-function d3_svg_symbolCircle(size) {
- var r = Math.sqrt(size / Math.PI);
- return "M0," + r
- + "A" + r + "," + r + " 0 1,1 0," + (-r)
- + "A" + r + "," + r + " 0 1,1 0," + r
- + "Z";
-}
-
-// TODO cross-diagonal?
-var d3_svg_symbols = d3.map({
- "circle": d3_svg_symbolCircle,
- "cross": function(size) {
- var r = Math.sqrt(size / 5) / 2;
- return "M" + -3 * r + "," + -r
- + "H" + -r
- + "V" + -3 * r
- + "H" + r
- + "V" + -r
- + "H" + 3 * r
- + "V" + r
- + "H" + r
- + "V" + 3 * r
- + "H" + -r
- + "V" + r
- + "H" + -3 * r
- + "Z";
- },
- "diamond": function(size) {
- var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)),
- rx = ry * d3_svg_symbolTan30;
- return "M0," + -ry
- + "L" + rx + ",0"
- + " 0," + ry
- + " " + -rx + ",0"
- + "Z";
- },
- "square": function(size) {
- var r = Math.sqrt(size) / 2;
- return "M" + -r + "," + -r
- + "L" + r + "," + -r
- + " " + r + "," + r
- + " " + -r + "," + r
- + "Z";
- },
- "triangle-down": function(size) {
- var rx = Math.sqrt(size / d3_svg_symbolSqrt3),
- ry = rx * d3_svg_symbolSqrt3 / 2;
- return "M0," + ry
- + "L" + rx +"," + -ry
- + " " + -rx + "," + -ry
- + "Z";
- },
- "triangle-up": function(size) {
- var rx = Math.sqrt(size / d3_svg_symbolSqrt3),
- ry = rx * d3_svg_symbolSqrt3 / 2;
- return "M0," + -ry
- + "L" + rx +"," + ry
- + " " + -rx + "," + ry
- + "Z";
- }
-});
-
-d3.svg.symbolTypes = d3_svg_symbols.keys();
-
-var d3_svg_symbolSqrt3 = Math.sqrt(3),
- d3_svg_symbolTan30 = Math.tan(30 * Math.PI / 180);
-d3.svg.axis = function() {
- var scale = d3.scale.linear(),
- orient = "bottom",
- tickMajorSize = 6,
- tickMinorSize = 6,
- tickEndSize = 6,
- tickPadding = 3,
- tickArguments_ = [10],
- tickValues = null,
- tickFormat_,
- tickSubdivide = 0;
-
- function axis(g) {
- g.each(function() {
- var g = d3.select(this);
-
- // Ticks, or domain values for ordinal scales.
- var ticks = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments_) : scale.domain()) : tickValues,
- tickFormat = tickFormat_ == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments_) : String) : tickFormat_;
-
- // Minor ticks.
- var subticks = d3_svg_axisSubdivide(scale, ticks, tickSubdivide),
- subtick = g.selectAll(".minor").data(subticks, String),
- subtickEnter = subtick.enter().insert("line", "g").attr("class", "tick minor").style("opacity", 1e-6),
- subtickExit = d3.transition(subtick.exit()).style("opacity", 1e-6).remove(),
- subtickUpdate = d3.transition(subtick).style("opacity", 1);
-
- // Major ticks.
- var tick = g.selectAll("g").data(ticks, String),
- tickEnter = tick.enter().insert("g", "path").style("opacity", 1e-6),
- tickExit = d3.transition(tick.exit()).style("opacity", 1e-6).remove(),
- tickUpdate = d3.transition(tick).style("opacity", 1),
- tickTransform;
-
- // Domain.
- var range = d3_scaleRange(scale),
- path = g.selectAll(".domain").data([0]),
- pathEnter = path.enter().append("path").attr("class", "domain"),
- pathUpdate = d3.transition(path);
-
- // Stash a snapshot of the new scale, and retrieve the old snapshot.
- var scale1 = scale.copy(),
- scale0 = this.__chart__ || scale1;
- this.__chart__ = scale1;
-
- tickEnter.append("line").attr("class", "tick");
- tickEnter.append("text");
- tickUpdate.select("text").text(tickFormat);
-
- switch (orient) {
- case "bottom": {
- tickTransform = d3_svg_axisX;
- subtickEnter.attr("y2", tickMinorSize);
- subtickUpdate.attr("x2", 0).attr("y2", tickMinorSize);
- tickEnter.select("line").attr("y2", tickMajorSize);
- tickEnter.select("text").attr("y", Math.max(tickMajorSize, 0) + tickPadding);
- tickUpdate.select("line").attr("x2", 0).attr("y2", tickMajorSize);
- tickUpdate.select("text").attr("x", 0).attr("y", Math.max(tickMajorSize, 0) + tickPadding).attr("dy", ".71em").attr("text-anchor", "middle");
- pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize);
- break;
- }
- case "top": {
- tickTransform = d3_svg_axisX;
- subtickEnter.attr("y2", -tickMinorSize);
- subtickUpdate.attr("x2", 0).attr("y2", -tickMinorSize);
- tickEnter.select("line").attr("y2", -tickMajorSize);
- tickEnter.select("text").attr("y", -(Math.max(tickMajorSize, 0) + tickPadding));
- tickUpdate.select("line").attr("x2", 0).attr("y2", -tickMajorSize);
- tickUpdate.select("text").attr("x", 0).attr("y", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("dy", "0em").attr("text-anchor", "middle");
- pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize);
- break;
- }
- case "left": {
- tickTransform = d3_svg_axisY;
- subtickEnter.attr("x2", -tickMinorSize);
- subtickUpdate.attr("x2", -tickMinorSize).attr("y2", 0);
- tickEnter.select("line").attr("x2", -tickMajorSize);
- tickEnter.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding));
- tickUpdate.select("line").attr("x2", -tickMajorSize).attr("y2", 0);
- tickUpdate.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "end");
- pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize);
- break;
- }
- case "right": {
- tickTransform = d3_svg_axisY;
- subtickEnter.attr("x2", tickMinorSize);
- subtickUpdate.attr("x2", tickMinorSize).attr("y2", 0);
- tickEnter.select("line").attr("x2", tickMajorSize);
- tickEnter.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding);
- tickUpdate.select("line").attr("x2", tickMajorSize).attr("y2", 0);
- tickUpdate.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "start");
- pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize);
- break;
- }
- }
-
- // For quantitative scales:
- // - enter new ticks from the old scale
- // - exit old ticks to the new scale
- if (scale.ticks) {
- tickEnter.call(tickTransform, scale0);
- tickUpdate.call(tickTransform, scale1);
- tickExit.call(tickTransform, scale1);
- subtickEnter.call(tickTransform, scale0);
- subtickUpdate.call(tickTransform, scale1);
- subtickExit.call(tickTransform, scale1);
- }
-
- // For ordinal scales:
- // - any entering ticks are undefined in the old scale
- // - any exiting ticks are undefined in the new scale
- // Therefore, we only need to transition updating ticks.
- else {
- var dx = scale1.rangeBand() / 2, x = function(d) { return scale1(d) + dx; };
- tickEnter.call(tickTransform, x);
- tickUpdate.call(tickTransform, x);
- }
- });
- }
-
- axis.scale = function(x) {
- if (!arguments.length) return scale;
- scale = x;
- return axis;
- };
-
- axis.orient = function(x) {
- if (!arguments.length) return orient;
- orient = x;
- return axis;
- };
-
- axis.ticks = function() {
- if (!arguments.length) return tickArguments_;
- tickArguments_ = arguments;
- return axis;
- };
-
- axis.tickValues = function(x) {
- if (!arguments.length) return tickValues;
- tickValues = x;
- return axis;
- };
-
- axis.tickFormat = function(x) {
- if (!arguments.length) return tickFormat_;
- tickFormat_ = x;
- return axis;
- };
-
- axis.tickSize = function(x, y, z) {
- if (!arguments.length) return tickMajorSize;
- var n = arguments.length - 1;
- tickMajorSize = +x;
- tickMinorSize = n > 1 ? +y : tickMajorSize;
- tickEndSize = n > 0 ? +arguments[n] : tickMajorSize;
- return axis;
- };
-
- axis.tickPadding = function(x) {
- if (!arguments.length) return tickPadding;
- tickPadding = +x;
- return axis;
- };
-
- axis.tickSubdivide = function(x) {
- if (!arguments.length) return tickSubdivide;
- tickSubdivide = +x;
- return axis;
- };
-
- return axis;
-};
-
-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.svg.brush = function() {
- var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"),
- x = null, // x-scale, optional
- y = null, // y-scale, optional
- resizes = d3_svg_brushResizes[0],
- extent = [[0, 0], [0, 0]], // [x0, y0], [x1, y1], in pixels (integers)
- extentDomain; // the extent in data space, lazily created
-
- function brush(g) {
- g.each(function() {
- var g = d3.select(this),
- bg = g.selectAll(".background").data([0]),
- fg = g.selectAll(".extent").data([0]),
- tz = g.selectAll(".resize").data(resizes, String),
- e;
-
- // Prepare the brush container for events.
- g
- .style("pointer-events", "all")
- .on("mousedown.brush", brushstart)
- .on("touchstart.brush", brushstart);
-
- // An invisible, mouseable area for starting a new brush.
- bg.enter().append("rect")
- .attr("class", "background")
- .style("visibility", "hidden")
- .style("cursor", "crosshair");
-
- // The visible brush extent; style this as you like!
- fg.enter().append("rect")
- .attr("class", "extent")
- .style("cursor", "move");
-
- // More invisible rects for resizing the extent.
- tz.enter().append("g")
- .attr("class", function(d) { return "resize " + d; })
- .style("cursor", function(d) { return d3_svg_brushCursor[d]; })
- .append("rect")
- .attr("x", function(d) { return /[ew]$/.test(d) ? -3 : null; })
- .attr("y", function(d) { return /^[ns]/.test(d) ? -3 : null; })
- .attr("width", 6)
- .attr("height", 6)
- .style("visibility", "hidden");
-
- // Show or hide the resizers.
- tz.style("display", brush.empty() ? "none" : null);
-
- // Remove any superfluous resizers.
- tz.exit().remove();
-
- // Initialize the background to fill the defined range.
- // If the range isn't defined, you can post-process.
- if (x) {
- e = d3_scaleRange(x);
- bg.attr("x", e[0]).attr("width", e[1] - e[0]);
- redrawX(g);
- }
- if (y) {
- e = d3_scaleRange(y);
- bg.attr("y", e[0]).attr("height", e[1] - e[0]);
- redrawY(g);
- }
- redraw(g);
- });
- }
-
- function redraw(g) {
- g.selectAll(".resize").attr("transform", function(d) {
- return "translate(" + extent[+/e$/.test(d)][0] + "," + extent[+/^s/.test(d)][1] + ")";
- });
- }
-
- function redrawX(g) {
- g.select(".extent").attr("x", extent[0][0]);
- g.selectAll(".extent,.n>rect,.s>rect").attr("width", extent[1][0] - extent[0][0]);
- }
-
- function redrawY(g) {
- g.select(".extent").attr("y", extent[0][1]);
- g.selectAll(".extent,.e>rect,.w>rect").attr("height", extent[1][1] - extent[0][1]);
- }
-
- function brushstart() {
- var target = this,
- eventTarget = d3.select(d3.event.target),
- event_ = event.of(target, arguments),
- g = d3.select(target),
- resizing = eventTarget.datum(),
- resizingX = !/^(n|s)$/.test(resizing) && x,
- resizingY = !/^(e|w)$/.test(resizing) && y,
- dragging = eventTarget.classed("extent"),
- center,
- origin = mouse(),
- offset;
-
- var w = d3.select(window)
- .on("mousemove.brush", brushmove)
- .on("mouseup.brush", brushend)
- .on("touchmove.brush", brushmove)
- .on("touchend.brush", brushend)
- .on("keydown.brush", keydown)
- .on("keyup.brush", keyup);
-
- // If the extent was clicked on, drag rather than brush;
- // store the point between the mouse and extent origin instead.
- if (dragging) {
- origin[0] = extent[0][0] - origin[0];
- origin[1] = extent[0][1] - origin[1];
- }
-
- // If a resizer was clicked on, record which side is to be resized.
- // Also, set the origin to the opposite side.
- else if (resizing) {
- var ex = +/w$/.test(resizing),
- ey = +/^n/.test(resizing);
- offset = [extent[1 - ex][0] - origin[0], extent[1 - ey][1] - origin[1]];
- origin[0] = extent[ex][0];
- origin[1] = extent[ey][1];
- }
-
- // If the ALT key is down when starting a brush, the center is at the mouse.
- else if (d3.event.altKey) center = origin.slice();
-
- // Propagate the active cursor to the body for the drag duration.
- g.style("pointer-events", "none").selectAll(".resize").style("display", null);
- d3.select("body").style("cursor", eventTarget.style("cursor"));
-
- // Notify listeners.
- event_({type: "brushstart"});
- brushmove();
- d3_eventCancel();
-
- function mouse() {
- var touches = d3.event.changedTouches;
- return touches ? d3.touches(target, touches)[0] : d3.mouse(target);
- }
-
- function keydown() {
- if (d3.event.keyCode == 32) {
- if (!dragging) {
- center = null;
- origin[0] -= extent[1][0];
- origin[1] -= extent[1][1];
- dragging = 2;
- }
- d3_eventCancel();
- }
- }
-
- function keyup() {
- if (d3.event.keyCode == 32 && dragging == 2) {
- origin[0] += extent[1][0];
- origin[1] += extent[1][1];
- dragging = 0;
- d3_eventCancel();
- }
- }
-
- function brushmove() {
- var point = mouse(),
- moved = false;
-
- // Preserve the offset for thick resizers.
- if (offset) {
- point[0] += offset[0];
- point[1] += offset[1];
- }
-
- if (!dragging) {
-
- // If needed, determine the center from the current extent.
- if (d3.event.altKey) {
- if (!center) center = [(extent[0][0] + extent[1][0]) / 2, (extent[0][1] + extent[1][1]) / 2];
-
- // Update the origin, for when the ALT key is released.
- origin[0] = extent[+(point[0] < center[0])][0];
- origin[1] = extent[+(point[1] < center[1])][1];
- }
-
- // When the ALT key is released, we clear the center.
- else center = null;
- }
-
- // Update the brush extent for each dimension.
- if (resizingX && move1(point, x, 0)) {
- redrawX(g);
- moved = true;
- }
- if (resizingY && move1(point, y, 1)) {
- redrawY(g);
- moved = true;
- }
-
- // Final redraw and notify listeners.
- if (moved) {
- redraw(g);
- event_({type: "brush", mode: dragging ? "move" : "resize"});
- }
- }
-
- function move1(point, scale, i) {
- var range = d3_scaleRange(scale),
- r0 = range[0],
- r1 = range[1],
- position = origin[i],
- size = extent[1][i] - extent[0][i],
- min,
- max;
-
- // When dragging, reduce the range by the extent size and position.
- if (dragging) {
- r0 -= position;
- r1 -= size + position;
- }
-
- // Clamp the point so that the extent fits within the range extent.
- min = Math.max(r0, Math.min(r1, point[i]));
-
- // Compute the new extent bounds.
- if (dragging) {
- max = (min += position) + size;
- } else {
-
- // If the ALT key is pressed, then preserve the center of the extent.
- if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min));
-
- // Compute the min and max of the position and point.
- if (position < min) {
- max = min;
- min = position;
- } else {
- max = position;
- }
- }
-
- // Update the stored bounds.
- if (extent[0][i] !== min || extent[1][i] !== max) {
- extentDomain = null;
- extent[0][i] = min;
- extent[1][i] = max;
- return true;
- }
- }
-
- function brushend() {
- brushmove();
-
- // reset the cursor styles
- g.style("pointer-events", "all").selectAll(".resize").style("display", brush.empty() ? "none" : null);
- d3.select("body").style("cursor", null);
-
- w .on("mousemove.brush", null)
- .on("mouseup.brush", null)
- .on("touchmove.brush", null)
- .on("touchend.brush", null)
- .on("keydown.brush", null)
- .on("keyup.brush", null);
-
- event_({type: "brushend"});
- d3_eventCancel();
- }
- }
-
- brush.x = function(z) {
- if (!arguments.length) return x;
- x = z;
- resizes = d3_svg_brushResizes[!x << 1 | !y]; // fore!
- return brush;
- };
-
- brush.y = function(z) {
- if (!arguments.length) return y;
- y = z;
- resizes = d3_svg_brushResizes[!x << 1 | !y]; // fore!
- return brush;
- };
-
- brush.extent = function(z) {
- var x0, x1, y0, y1, t;
-
- // Invert the pixel extent to data-space.
- if (!arguments.length) {
- z = extentDomain || extent;
- if (x) {
- x0 = z[0][0], x1 = z[1][0];
- if (!extentDomain) {
- x0 = extent[0][0], x1 = extent[1][0];
- if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1);
- if (x1 < x0) t = x0, x0 = x1, x1 = t;
- }
- }
- if (y) {
- y0 = z[0][1], y1 = z[1][1];
- if (!extentDomain) {
- y0 = extent[0][1], y1 = extent[1][1];
- if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1);
- if (y1 < y0) t = y0, y0 = y1, y1 = t;
- }
- }
- return x && y ? [[x0, y0], [x1, y1]] : x ? [x0, x1] : y && [y0, y1];
- }
-
- // Scale the data-space extent to pixels.
- extentDomain = [[0, 0], [0, 0]];
- if (x) {
- x0 = z[0], x1 = z[1];
- if (y) x0 = x0[0], x1 = x1[0];
- extentDomain[0][0] = x0, extentDomain[1][0] = x1;
- if (x.invert) x0 = x(x0), x1 = x(x1);
- if (x1 < x0) t = x0, x0 = x1, x1 = t;
- extent[0][0] = x0 | 0, extent[1][0] = x1 | 0;
- }
- if (y) {
- y0 = z[0], y1 = z[1];
- if (x) y0 = y0[1], y1 = y1[1];
- extentDomain[0][1] = y0, extentDomain[1][1] = y1;
- if (y.invert) y0 = y(y0), y1 = y(y1);
- if (y1 < y0) t = y0, y0 = y1, y1 = t;
- extent[0][1] = y0 | 0, extent[1][1] = y1 | 0;
- }
-
- return brush;
- };
-
- brush.clear = function() {
- extentDomain = null;
- extent[0][0] =
- extent[0][1] =
- extent[1][0] =
- extent[1][1] = 0;
- return brush;
- };
-
- brush.empty = function() {
- return (x && extent[0][0] === extent[1][0])
- || (y && extent[0][1] === extent[1][1]);
- };
-
- return d3.rebind(brush, event, "on");
-};
-
-var d3_svg_brushCursor = {
- n: "ns-resize",
- e: "ew-resize",
- s: "ns-resize",
- w: "ew-resize",
- nw: "nwse-resize",
- ne: "nesw-resize",
- se: "nwse-resize",
- sw: "nesw-resize"
-};
-
-var d3_svg_brushResizes = [
- ["n", "e", "s", "w", "nw", "ne", "se", "sw"],
- ["e", "w"],
- ["n", "s"],
- []
-];
-d3.behavior = {};
-// TODO Track touch points by identifier.
-
-d3.behavior.drag = function() {
- var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"),
- origin = null;
-
- function drag() {
- this.on("mousedown.drag", mousedown)
- .on("touchstart.drag", mousedown);
- }
-
- function mousedown() {
- var target = this,
- event_ = event.of(target, arguments),
- eventTarget = d3.event.target,
- offset,
- origin_ = point(),
- moved = 0;
-
- var w = d3.select(window)
- .on("mousemove.drag", dragmove)
- .on("touchmove.drag", dragmove)
- .on("mouseup.drag", dragend, true)
- .on("touchend.drag", dragend, true);
-
- if (origin) {
- offset = origin.apply(target, arguments);
- offset = [offset.x - origin_[0], offset.y - origin_[1]];
- } else {
- offset = [0, 0];
- }
-
- event_({type: "dragstart"});
-
- function point() {
- var p = target.parentNode,
- t = d3.event.changedTouches;
- return t ? d3.touches(p, t)[0] : d3.mouse(p);
- }
-
- function dragmove() {
- if (!target.parentNode) return dragend(); // target removed from DOM
-
- var p = point(),
- dx = p[0] - origin_[0],
- dy = p[1] - origin_[1];
-
- moved |= dx | dy;
- origin_ = p;
- d3_eventCancel();
-
- event_({type: "drag", x: p[0] + offset[0], y: p[1] + offset[1], dx: dx, dy: dy});
- }
-
- function dragend() {
- event_({type: "dragend"});
-
- // if moved, prevent the mouseup (and possibly click) from propagating
- if (moved) {
- d3_eventCancel();
- if (d3.event.target === eventTarget) w.on("click.drag", click, true);
- }
-
- w .on("mousemove.drag", null)
- .on("touchmove.drag", null)
- .on("mouseup.drag", null)
- .on("touchend.drag", null);
- }
-
- // prevent the subsequent click from propagating (e.g., for anchors)
- function click() {
- d3_eventCancel();
- w.on("click.drag", null);
- }
- }
-
- drag.origin = function(x) {
- if (!arguments.length) return origin;
- origin = x;
- return drag;
- };
-
- return d3.rebind(drag, event, "on");
-};
-d3.behavior.zoom = function() {
- var translate = [0, 0],
- translate0, // translate when we started zooming (to avoid drift)
- scale = 1,
- scale0, // scale when we started touching
- scaleExtent = d3_behavior_zoomInfinity,
- event = d3_eventDispatch(zoom, "zoom"),
- x0,
- x1,
- y0,
- y1,
- touchtime; // time of last touchstart (to detect double-tap)
-
- function zoom() {
- this
- .on("mousedown.zoom", mousedown)
- .on("mousewheel.zoom", mousewheel)
- .on("mousemove.zoom", mousemove)
- .on("DOMMouseScroll.zoom", mousewheel)
- .on("dblclick.zoom", dblclick)
- .on("touchstart.zoom", touchstart)
- .on("touchmove.zoom", touchmove)
- .on("touchend.zoom", touchstart);
- }
-
- zoom.translate = function(x) {
- if (!arguments.length) return translate;
- translate = x.map(Number);
- return zoom;
- };
-
- zoom.scale = function(x) {
- if (!arguments.length) return scale;
- scale = +x;
- return zoom;
- };
-
- zoom.scaleExtent = function(x) {
- if (!arguments.length) return scaleExtent;
- scaleExtent = x == null ? d3_behavior_zoomInfinity : x.map(Number);
- return zoom;
- };
-
- zoom.x = function(z) {
- if (!arguments.length) return x1;
- x1 = z;
- x0 = z.copy();
- return zoom;
- };
-
- zoom.y = function(z) {
- if (!arguments.length) return y1;
- y1 = z;
- y0 = z.copy();
- return zoom;
- };
-
- function location(p) {
- return [(p[0] - translate[0]) / scale, (p[1] - translate[1]) / scale];
- }
-
- function point(l) {
- return [l[0] * scale + translate[0], l[1] * scale + translate[1]];
- }
-
- function scaleTo(s) {
- scale = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s));
- }
-
- function translateTo(p, l) {
- l = point(l);
- translate[0] += p[0] - l[0];
- translate[1] += p[1] - l[1];
- }
-
- function dispatch(event) {
- if (x1) x1.domain(x0.range().map(function(x) { return (x - translate[0]) / scale; }).map(x0.invert));
- if (y1) y1.domain(y0.range().map(function(y) { return (y - translate[1]) / scale; }).map(y0.invert));
- d3.event.preventDefault();
- event({type: "zoom", scale: scale, translate: translate});
- }
-
- function mousedown() {
- var target = this,
- event_ = event.of(target, arguments),
- eventTarget = d3.event.target,
- moved = 0,
- w = d3.select(window).on("mousemove.zoom", mousemove).on("mouseup.zoom", mouseup),
- l = location(d3.mouse(target));
-
- window.focus();
- d3_eventCancel();
-
- function mousemove() {
- moved = 1;
- translateTo(d3.mouse(target), l);
- dispatch(event_);
- }
-
- function mouseup() {
- if (moved) d3_eventCancel();
- w.on("mousemove.zoom", null).on("mouseup.zoom", null);
- if (moved && d3.event.target === eventTarget) w.on("click.zoom", click);
- }
-
- function click() {
- d3_eventCancel();
- w.on("click.zoom", null);
- }
- }
-
- function mousewheel() {
- if (!translate0) translate0 = location(d3.mouse(this));
- scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * scale);
- translateTo(d3.mouse(this), translate0);
- dispatch(event.of(this, arguments));
- }
-
- function mousemove() {
- translate0 = null;
- }
-
- function dblclick() {
- var p = d3.mouse(this), l = location(p);
- scaleTo(d3.event.shiftKey ? scale / 2 : scale * 2);
- translateTo(p, l);
- dispatch(event.of(this, arguments));
- }
-
- function touchstart() {
- var touches = d3.touches(this),
- now = Date.now();
-
- scale0 = scale;
- translate0 = {};
- touches.forEach(function(t) { translate0[t.identifier] = location(t); });
- d3_eventCancel();
-
- if ((touches.length === 1) && (now - touchtime < 500)) { // dbltap
- var p = touches[0], l = location(touches[0]);
- scaleTo(scale * 2);
- translateTo(p, l);
- dispatch(event.of(this, arguments));
- }
- touchtime = now;
- }
-
- function touchmove() {
- var touches = d3.touches(this),
- p0 = touches[0],
- l0 = translate0[p0.identifier];
- if (p1 = touches[1]) {
- var p1, l1 = translate0[p1.identifier];
- p0 = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2];
- l0 = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2];
- scaleTo(d3.event.scale * scale0);
- }
- translateTo(p0, l0);
- dispatch(event.of(this, arguments));
- }
-
- return d3.rebind(zoom, event, "on");
-};
-
-var d3_behavior_zoomDiv, // for interpreting mousewheel events
- d3_behavior_zoomInfinity = [0, Infinity]; // default scale extent
-
-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;
-}
-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.
- // Note: Opera has a bug reordering object literal properties!
- x = 0, i = -1; while (++i < n) {
- x0 = x, j = -1; while (++j < n) {
- var di = groupIndex[i],
- dj = subgroupIndex[di][j],
- v = matrix[di][dj],
- a0 = x,
- a1 = x += v * k;
- subgroups[di + "-" + dj] = {
- index: di,
- subindex: dj,
- startAngle: a0,
- endAngle: a1,
- 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.source.value + a.target.value) / 2,
- (b.source.value + b.target.value) / 2);
- });
- }
-
- 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("start", "tick", "end"),
- size = [1, 1],
- drag,
- alpha,
- friction = .9,
- linkDistance = d3_layout_forceLinkDistance,
- linkStrength = d3_layout_forceLinkStrength,
- charge = -30,
- gravity = .1,
- theta = .8,
- interval,
- nodes = [],
- links = [],
- distances,
- strengths,
- charges;
-
- 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;
- };
- }
-
- force.tick = function() {
- // simulated annealing, basically
- if ((alpha *= .99) < .005) {
- event.end({type: "end", alpha: alpha = 0});
- return true;
- }
-
- 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({type: "tick", alpha: alpha});
- };
-
- force.nodes = function(x) {
- if (!arguments.length) return nodes;
- nodes = x;
- return force;
- };
-
- force.links = function(x) {
- if (!arguments.length) return links;
- links = x;
- return force;
- };
-
- force.size = function(x) {
- if (!arguments.length) return size;
- size = x;
- return force;
- };
-
- force.linkDistance = function(x) {
- if (!arguments.length) return linkDistance;
- linkDistance = d3.functor(x);
- return force;
- };
-
- // 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.alpha = function(x) {
- if (!arguments.length) return alpha;
-
- if (alpha) { // if we're already running
- if (x > 0) alpha = x; // we might keep it hot
- else alpha = 0; // or, next tick will dispatch "end"
- } else if (x > 0) { // otherwise, fire it up!
- event.start({type: "start", alpha: alpha = x});
- d3.timer(force.tick);
- }
-
- 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() {
- return force.alpha(.1);
- };
-
- force.stop = function() {
- return force.alpha(0);
- };
-
- // use `node.call(force.drag)` to make nodes draggable
- force.drag = function() {
- if (!drag) drag = d3.behavior.drag()
- .origin(Object)
- .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 d3.rebind(force, event, "on");
-};
-
-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_forceDragNode.fixed &= 1;
- d3_layout_forceDragForce = d3_layout_forceDragNode = null;
-}
-
-function d3_layout_forceDrag() {
- d3_layout_forceDragNode.px = d3.event.x;
- d3_layout_forceDragNode.py = d3.event.y;
- 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 && (n = children.length)) {
- var i = -1,
- n,
- c,
- d;
- dx = node.value ? dx / node.value : 0;
- while (++i < n) {
- position(c = children[i], x, d = c.value * dx, dy);
- x += d;
- }
- }
- }
-
- function depth(node) {
- var children = node.children,
- d = 0;
- if (children && (n = children.length)) {
- var i = -1,
- n;
- while (++i < n) d = Math.max(d, depth(children[i]));
- }
- return 1 + d;
- }
-
- function partition(d, i) {
- var nodes = hierarchy.call(this, d, i);
- position(nodes[0], 0, size[0], size[1] / depth(nodes[0]));
- return nodes;
- }
-
- 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 = d3_layout_pieSortByValue,
- startAngle = 0,
- endAngle = 2 * Math.PI;
-
- function pie(data, i) {
-
- // Compute the numeric values for each data element.
- var values = data.map(function(d, i) { return +value.call(pie, d, i); });
-
- // Compute the start angle.
- var a = +(typeof startAngle === "function"
- ? startAngle.apply(this, arguments)
- : startAngle);
-
- // Compute the angular scale factor: from value to radians.
- var k = ((typeof endAngle === "function"
- ? endAngle.apply(this, arguments)
- : endAngle) - startAngle)
- / d3.sum(values);
-
- // Optionally sort the data.
- var index = d3.range(data.length);
- if (sort != null) index.sort(sort === d3_layout_pieSortByValue
- ? function(i, j) { return values[j] - values[i]; }
- : function(i, j) { return sort(data[i], data[j]); });
-
- // Compute the arcs!
- // They are stored in the original data's order.
- var arcs = [];
- index.forEach(function(i) {
- arcs[i] = {
- data: data[i],
- value: d = values[i],
- startAngle: a,
- endAngle: a += d * k
- };
- });
- return arcs;
- }
-
- /**
- * 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;
-};
-
-var d3_layout_pieSortByValue = {};
-// data is two-dimensional array of x,y; we populate y0
-d3.layout.stack = function() {
- var values = Object,
- order = d3_layout_stackOrderDefault,
- offset = d3_layout_stackOffsetZero,
- 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.get(x) || d3_layout_stackOrderDefault;
- return stack;
- };
-
- stack.offset = function(x) {
- if (!arguments.length) return offset;
- offset = typeof x === "function" ? x : d3_layout_stackOffsets.get(x) || d3_layout_stackOffsetZero;
- return stack;
- };
-
- stack.x = function(z) {
- if (!arguments.length) return x;
- x = z;
- return stack;
- };
-
- stack.y = function(z) {
- if (!arguments.length) return y;
- y = z;
- return stack;
- };
-
- stack.out = function(z) {
- if (!arguments.length) return out;
- out = z;
- return stack;
- };
-
- return stack;
-}
-
-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 = d3.map({
-
- "inside-out": function(data) {
- var n = data.length,
- i,
- j,
- max = data.map(d3_layout_stackMaxIndex),
- sums = data.map(d3_layout_stackReduceSum),
- index = d3.range(n).sort(function(a, b) { return max[a] - max[b]; }),
- top = 0,
- bottom = 0,
- tops = [],
- bottoms = [];
- for (i = 0; i < n; ++i) {
- j = index[i];
- if (top < bottom) {
- top += sums[j];
- tops.push(j);
- } else {
- bottom += sums[j];
- bottoms.push(j);
- }
- }
- return bottoms.reverse().concat(tops);
- },
-
- "reverse": function(data) {
- return d3.range(data.length).reverse();
- },
-
- "default": d3_layout_stackOrderDefault
-
-});
-
-var d3_layout_stackOffsets = d3.map({
-
- "silhouette": function(data) {
- var n = data.length,
- m = data[0].length,
- sums = [],
- max = 0,
- i,
- j,
- o,
- y0 = [];
- for (j = 0; j < m; ++j) {
- for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
- if (o > max) max = o;
- sums.push(o);
- }
- for (j = 0; j < m; ++j) {
- y0[j] = (max - sums[j]) / 2;
- }
- return y0;
- },
-
- "wiggle": function(data) {
- var n = data.length,
- x = data[0],
- m = x.length,
- max = 0,
- i,
- j,
- k,
- s1,
- s2,
- s3,
- dx,
- o,
- o0,
- y0 = [];
- y0[0] = o = o0 = 0;
- for (j = 1; j < m; ++j) {
- for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1];
- for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) {
- for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) {
- s3 += (data[k][j][1] - data[k][j - 1][1]) / dx;
- }
- s2 += s3 * data[i][j][1];
- }
- y0[j] = o -= s1 ? s2 / s1 * dx : 0;
- if (o < o0) o0 = o;
- }
- for (j = 0; j < m; ++j) y0[j] -= o0;
- return y0;
- },
-
- "expand": function(data) {
- var n = data.length,
- m = data[0].length,
- k = 1 / n,
- i,
- j,
- o,
- y0 = [];
- for (j = 0; j < m; ++j) {
- for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
- if (o) for (i = 0; i < n; i++) data[i][j][1] /= o;
- else for (i = 0; i < n; i++) data[i][j][1] = k;
- }
- for (j = 0; j < m; ++j) y0[j] = 0;
- return y0;
- },
-
- "zero": d3_layout_stackOffsetZero
-
-});
-
-function d3_layout_stackOrderDefault(data) {
- return d3.range(data.length);
-}
-
-function d3_layout_stackOffsetZero(data) {
- var j = -1,
- m = data[0].length,
- y0 = [];
- while (++j < m) y0[j] = 0;
- return y0;
-}
-
-function d3_layout_stackMaxIndex(array) {
- var i = 1,
- j = 0,
- v = array[0][1],
- k,
- n = array.length;
- for (; i < n; ++i) {
- if ((k = array[i][1]) > v) {
- j = i;
- v = k;
- }
- }
- return j;
-}
-
-function d3_layout_stackReduceSum(d) {
- return d.reduce(d3_layout_stackSum, 0);
-}
-
-function d3_layout_stackSum(p, d) {
- return p + d[1];
-}
-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) {
- d3.rebind(object, hierarchy, "sort", "children", "value");
-
- // Add an alias for links, for convenience.
- object.links = d3_layout_hierarchyLinks;
-
- // 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)) {
- break;
- }
- }
- }
-
- // Update node chain.
- if (isect) {
- if (s1 < s2 || (s1 == s2 && b.r < a.r)) d3_layout_packSplice(a, b = j);
- else d3_layout_packSplice(a = k, b);
- i--;
- } else {
- d3_layout_packInsert(a, c);
- b = c;
- bound(c);
- }
- }
- }
- }
-
- // 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 dendrogram)
-// 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 - (root.y ? node.y / root.y : 1)) * 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 && (n = children.length)) {
- var i = -1,
- n;
- x += node._tree.mod;
- while (++i < n) {
- secondWalk(children[i], x);
- }
- }
- }
-
- function apportion(node, previousSibling, ancestor) {
- if (previousSibling) {
- var vip = node,
- vop = node,
- vim = previousSibling,
- vom = node.parent.children[0],
- sip = vip._tree.mod,
- sop = vop._tree.mod,
- sim = vim._tree.mod,
- som = vom._tree.mod,
- shift;
- while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) {
- vom = d3_layout_treeLeft(vom);
- vop = d3_layout_treeRight(vop);
- vop._tree.ancestor = node;
- shift = vim._tree.prelim + sim - vip._tree.prelim - sip + separation(vim, vip);
- if (shift > 0) {
- d3_layout_treeMove(d3_layout_treeAncestor(vim, node, ancestor), node, shift);
- sip += shift;
- sop += shift;
- }
- sim += vim._tree.mod;
- sip += vip._tree.mod;
- som += vom._tree.mod;
- sop += vop._tree.mod;
- }
- if (vim && !d3_layout_treeRight(vop)) {
- vop._tree.thread = vim;
- vop._tree.mod += sim - sop;
- }
- if (vip && !d3_layout_treeLeft(vom)) {
- vom._tree.thread = vip;
- vom._tree.mod += sip - som;
- ancestor = node;
- }
- }
- return ancestor;
- }
-
- // 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) {
- var children = node.children;
- return children && children.length ? children[0] : node._tree.thread;
-}
-
-function d3_layout_treeRight(node) {
- var children = node.children,
- n;
- return children && (n = children.length) ? children[n - 1] : node._tree.thread;
-}
-
-function d3_layout_treeSearch(node, compare) {
- var children = node.children;
- if (children && (n = children.length)) {
- var child,
- n,
- i = -1;
- while (++i < n) {
- if (compare(child = d3_layout_treeSearch(children[i], compare), node) > 0) {
- node = child;
- }
- }
- }
- return node;
-}
-
-function d3_layout_treeRightmost(a, b) {
- return a.x - b.x;
-}
-
-function d3_layout_treeLeftmost(a, b) {
- return b.x - a.x;
-}
-
-function d3_layout_treeDeepest(a, b) {
- return a.depth - b.depth;
-}
-
-function d3_layout_treeVisitAfter(node, callback) {
- function visit(node, previousSibling) {
- var children = node.children;
- if (children && (n = children.length)) {
- var child,
- previousChild = null,
- i = -1,
- n;
- while (++i < n) {
- child = children[i];
- visit(child, previousChild);
- previousChild = child;
- }
- }
- callback(node, previousSibling);
- }
- visit(node, null);
-}
-
-function d3_layout_treeShift(node) {
- var shift = 0,
- change = 0,
- children = node.children,
- i = children.length,
- child;
- while (--i >= 0) {
- child = children[i]._tree;
- child.prelim += shift;
- child.mod += shift;
- shift += child.shift + (change += child.change);
- }
-}
-
-function d3_layout_treeMove(ancestor, node, shift) {
- ancestor = ancestor._tree;
- node = node._tree;
- var change = shift / (node.number - ancestor.number);
- ancestor.change += change;
- node.change -= change;
- node.shift += shift;
- node.prelim += shift;
- node.mod += shift;
-}
-
-function d3_layout_treeAncestor(vim, node, ancestor) {
- return vim._tree.ancestor.parent == node.parent
- ? vim._tree.ancestor
- : ancestor;
-}
-// 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) {
- var children = node.children;
- if (children && children.length) {
- var rect = pad(node),
- row = [],
- remaining = 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(remaining, rect.dx * rect.dy / node.value);
- row.area = 0;
- while ((n = remaining.length) > 0) {
- row.push(child = remaining[n - 1]);
- row.area += child.area;
- if ((score = worst(row, u)) <= best) { // continue with this orientation
- remaining.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;
- }
- children.forEach(squarify);
- }
- }
-
- // Recursively resizes the specified node's children into existing rows.
- // Preserves the existing layout!
- function stickify(node) {
- var children = node.children;
- if (children && children.length) {
- var rect = pad(node),
- remaining = children.slice(), // copy-on-write
- child,
- row = [];
- scale(remaining, rect.dx * rect.dy / node.value);
- row.area = 0;
- while (child = remaining.pop()) {
- row.push(child);
- row.area += child.area;
- if (child.z != null) {
- position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length);
- row.length = row.area = 0;
- }
- }
- children.forEach(stickify);
- }
- }
-
- // 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 = rect.dy; // over+underflow
- while (++i < n) {
- o = row[i];
- o.x = x;
- o.y = y;
- o.dy = v;
- x += o.dx = Math.min(rect.x + rect.dx - x, v ? round(o.area / v) : 0);
- }
- o.z = true;
- o.dx += rect.x + rect.dx - x; // rounding error
- rect.y += v;
- rect.dy -= v;
- } else { // vertical subdivision
- if (flush || v > rect.dx) v = rect.dx; // over+underflow
- while (++i < n) {
- o = row[i];
- o.x = x;
- o.y = y;
- o.dx = v;
- y += o.dy = Math.min(rect.y + rect.dy - y, v ? round(o.area / v) : 0);
- }
- o.z = false;
- o.dy += rect.y + rect.dy - y; // 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};
-}
-d3.csv = function(url, callback) {
- d3.text(url, "text/csv", function(text) {
- callback(text && d3.csv.parse(text));
- });
-};
-d3.csv.parse = function(text) {
- var header;
- return d3.csv.parseRows(text, function(row, i) {
- if (i) {
- var o = {}, j = -1, m = header.length;
- while (++j < m) o[header[j]] = row[j];
- return o;
- } else {
- header = row;
- return null;
- }
- });
-};
-
-d3.csv.parseRows = function(text, f) {
- var EOL = {}, // sentinel value for end-of-line
- EOF = {}, // sentinel value for end-of-file
- rows = [], // output rows
- re = /\r\n|[,\r\n]/g, // field separator regex
- n = 0, // the current line number
- t, // the current token
- eol; // is the current token followed by EOL?
-
- re.lastIndex = 0; // work-around bug in FF 3.6
-
- /** @private Returns the next token. */
- function token() {
- if (re.lastIndex >= text.length) return EOF; // special case: end of file
- if (eol) { eol = false; return EOL; } // special case: end of line
-
- // special case: quotes
- var j = re.lastIndex;
- if (text.charCodeAt(j) === 34) {
- var i = j;
- while (i++ < text.length) {
- if (text.charCodeAt(i) === 34) {
- if (text.charCodeAt(i + 1) !== 34) break;
- i++;
- }
- }
- re.lastIndex = i + 2;
- var c = text.charCodeAt(i + 1);
- if (c === 13) {
- eol = true;
- if (text.charCodeAt(i + 2) === 10) re.lastIndex++;
- } else if (c === 10) {
- eol = true;
- }
- return text.substring(j + 1, i).replace(/""/g, "\"");
- }
-
- // common case
- var m = re.exec(text);
- if (m) {
- eol = m[0].charCodeAt(0) !== 44;
- return text.substring(j, m.index);
- }
- re.lastIndex = text.length;
- return text.substring(j);
- }
-
- while ((t = token()) !== EOF) {
- var a = [];
- while ((t !== EOL) && (t !== EOF)) {
- a.push(t);
- t = token();
- }
- if (f && !(a = f(a, n++))) continue;
- rows.push(a);
- }
-
- return rows;
-};
-d3.csv.format = function(rows) {
- return rows.map(d3_csv_formatRow).join("\n");
-};
-
-function d3_csv_formatRow(row) {
- return row.map(d3_csv_formatValue).join(",");
-}
-
-function d3_csv_formatValue(text) {
- return /[",\n]/.test(text)
- ? "\"" + text.replace(/\"/g, "\"\"") + "\""
- : text;
-}
-d3.geo = {};
-
-var d3_geo_radians = Math.PI / 180;
-// TODO clip input coordinates on opposite hemisphere
-d3.geo.azimuthal = function() {
- var mode = "orthographic", // or stereographic, gnomonic, equidistant or equalarea
- origin,
- scale = 200,
- translate = [480, 250],
- x0,
- y0,
- cy0,
- sy0;
-
- function azimuthal(coordinates) {
- var x1 = coordinates[0] * d3_geo_radians - x0,
- y1 = coordinates[1] * d3_geo_radians,
- cx1 = Math.cos(x1),
- sx1 = Math.sin(x1),
- cy1 = Math.cos(y1),
- sy1 = Math.sin(y1),
- cc = mode !== "orthographic" ? sy0 * sy1 + cy0 * cy1 * cx1 : null,
- c,
- k = mode === "stereographic" ? 1 / (1 + cc)
- : mode === "gnomonic" ? 1 / cc
- : mode === "equidistant" ? (c = Math.acos(cc), c ? c / Math.sin(c) : 0)
- : mode === "equalarea" ? Math.sqrt(2 / (1 + cc))
- : 1,
- x = k * cy1 * sx1,
- y = k * (sy0 * cy1 * cx1 - cy0 * sy1);
- return [
- scale * x + translate[0],
- scale * y + translate[1]
- ];
- }
-
- azimuthal.invert = function(coordinates) {
- var x = (coordinates[0] - translate[0]) / scale,
- y = (coordinates[1] - translate[1]) / scale,
- p = Math.sqrt(x * x + y * y),
- c = mode === "stereographic" ? 2 * Math.atan(p)
- : mode === "gnomonic" ? Math.atan(p)
- : mode === "equidistant" ? p
- : mode === "equalarea" ? 2 * Math.asin(.5 * p)
- : Math.asin(p),
- sc = Math.sin(c),
- cc = Math.cos(c);
- return [
- (x0 + Math.atan2(x * sc, p * cy0 * cc + y * sy0 * sc)) / d3_geo_radians,
- Math.asin(cc * sy0 - (p ? (y * sc * cy0) / p : 0)) / d3_geo_radians
- ];
- };
-
- azimuthal.mode = function(x) {
- if (!arguments.length) return mode;
- mode = x + "";
- return azimuthal;
- };
-
- azimuthal.origin = function(x) {
- if (!arguments.length) return origin;
- origin = x;
- x0 = origin[0] * d3_geo_radians;
- y0 = origin[1] * d3_geo_radians;
- cy0 = Math.cos(y0);
- sy0 = Math.sin(y0);
- return azimuthal;
- };
-
- azimuthal.scale = function(x) {
- if (!arguments.length) return scale;
- scale = +x;
- return azimuthal;
- };
-
- azimuthal.translate = function(x) {
- if (!arguments.length) return translate;
- translate = [+x[0], +x[1]];
- return azimuthal;
- };
-
- return azimuthal.origin([0, 0]);
-};
-// Derived from Tom Carden's Albers implementation for Protovis.
-// http://gist.github.com/476238
-// http://mathworld.wolfram.com/AlbersEqual-AreaConicProjection.html
-
-d3.geo.albers = function() {
- var origin = [-98, 38],
- parallels = [29.5, 45.5],
- scale = 1000,
- translate = [480, 250],
- lng0, // d3_geo_radians * origin[0]
- n,
- C,
- p0;
-
- function albers(coordinates) {
- var t = n * (d3_geo_radians * coordinates[0] - lng0),
- p = Math.sqrt(C - 2 * n * Math.sin(d3_geo_radians * coordinates[1])) / n;
- return [
- scale * p * Math.sin(t) + translate[0],
- scale * (p * Math.cos(t) - p0) + translate[1]
- ];
- }
-
- albers.invert = function(coordinates) {
- var x = (coordinates[0] - translate[0]) / scale,
- y = (coordinates[1] - translate[1]) / scale,
- p0y = p0 + y,
- t = Math.atan2(x, p0y),
- p = Math.sqrt(x * x + p0y * p0y);
- return [
- (lng0 + t / n) / d3_geo_radians,
- Math.asin((C - p * p * n * n) / (2 * n)) / d3_geo_radians
- ];
- };
-
- function reload() {
- var phi1 = d3_geo_radians * parallels[0],
- phi2 = d3_geo_radians * parallels[1],
- lat0 = d3_geo_radians * origin[1],
- s = Math.sin(phi1),
- c = Math.cos(phi1);
- lng0 = d3_geo_radians * origin[0];
- n = .5 * (s + Math.sin(phi2));
- C = c * c + 2 * n * s;
- p0 = Math.sqrt(C - 2 * n * Math.sin(lat0)) / n;
- return albers;
- }
-
- albers.origin = function(x) {
- if (!arguments.length) return origin;
- origin = [+x[0], +x[1]];
- return reload();
- };
-
- albers.parallels = function(x) {
- if (!arguments.length) return parallels;
- parallels = [+x[0], +x[1]];
- return reload();
- };
-
- albers.scale = function(x) {
- if (!arguments.length) return scale;
- scale = +x;
- return albers;
- };
-
- albers.translate = function(x) {
- if (!arguments.length) return translate;
- translate = [+x[0], +x[1]];
- return albers;
- };
-
- return reload();
-};
-
-// A composite projection for the United States, 960x500. The set of standard
-// parallels for each region comes from USGS, which is published here:
-// http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#albers
-// TODO allow the composite projection to be rescaled?
-d3.geo.albersUsa = function() {
- var lower48 = d3.geo.albers();
-
- var alaska = d3.geo.albers()
- .origin([-160, 60])
- .parallels([55, 65]);
-
- var hawaii = d3.geo.albers()
- .origin([-160, 20])
- .parallels([8, 18]);
-
- var puertoRico = d3.geo.albers()
- .origin([-60, 10])
- .parallels([8, 18]);
-
- function albersUsa(coordinates) {
- var lon = coordinates[0],
- lat = coordinates[1];
- return (lat > 50 ? alaska
- : lon < -140 ? hawaii
- : lat < 21 ? puertoRico
- : lower48)(coordinates);
- }
-
- albersUsa.scale = function(x) {
- if (!arguments.length) return lower48.scale();
- lower48.scale(x);
- alaska.scale(x * .6);
- hawaii.scale(x);
- puertoRico.scale(x * 1.5);
- return albersUsa.translate(lower48.translate());
- };
-
- albersUsa.translate = function(x) {
- if (!arguments.length) return lower48.translate();
- var dz = lower48.scale() / 1000,
- dx = x[0],
- dy = x[1];
- lower48.translate(x);
- alaska.translate([dx - 400 * dz, dy + 170 * dz]);
- hawaii.translate([dx - 190 * dz, dy + 200 * dz]);
- puertoRico.translate([dx + 580 * dz, dy + 430 * dz]);
- return albersUsa;
- };
-
- return albersUsa.scale(lower48.scale());
-};
-d3.geo.bonne = function() {
- var scale = 200,
- translate = [480, 250],
- x0, // origin longitude in radians
- y0, // origin latitude in radians
- y1, // parallel latitude in radians
- c1; // cot(y1)
-
- function bonne(coordinates) {
- var x = coordinates[0] * d3_geo_radians - x0,
- y = coordinates[1] * d3_geo_radians - y0;
- if (y1) {
- var p = c1 + y1 - y, E = x * Math.cos(y) / p;
- x = p * Math.sin(E);
- y = p * Math.cos(E) - c1;
- } else {
- x *= Math.cos(y);
- y *= -1;
- }
- return [
- scale * x + translate[0],
- scale * y + translate[1]
- ];
- }
-
- bonne.invert = function(coordinates) {
- var x = (coordinates[0] - translate[0]) / scale,
- y = (coordinates[1] - translate[1]) / scale;
- if (y1) {
- var c = c1 + y, p = Math.sqrt(x * x + c * c);
- y = c1 + y1 - p;
- x = x0 + p * Math.atan2(x, c) / Math.cos(y);
- } else {
- y *= -1;
- x /= Math.cos(y);
- }
- return [
- x / d3_geo_radians,
- y / d3_geo_radians
- ];
- };
-
- // 90° for Werner, 0° for Sinusoidal
- bonne.parallel = function(x) {
- if (!arguments.length) return y1 / d3_geo_radians;
- c1 = 1 / Math.tan(y1 = x * d3_geo_radians);
- return bonne;
- };
-
- bonne.origin = function(x) {
- if (!arguments.length) return [x0 / d3_geo_radians, y0 / d3_geo_radians];
- x0 = x[0] * d3_geo_radians;
- y0 = x[1] * d3_geo_radians;
- return bonne;
- };
-
- bonne.scale = function(x) {
- if (!arguments.length) return scale;
- scale = +x;
- return bonne;
- };
-
- bonne.translate = function(x) {
- if (!arguments.length) return translate;
- translate = [+x[0], +x[1]];
- return bonne;
- };
-
- return bonne.origin([0, 0]).parallel(45);
-};
-d3.geo.equirectangular = function() {
- var scale = 500,
- translate = [480, 250];
-
- function equirectangular(coordinates) {
- var x = coordinates[0] / 360,
- y = -coordinates[1] / 360;
- return [
- scale * x + translate[0],
- scale * y + translate[1]
- ];
- }
-
- equirectangular.invert = function(coordinates) {
- var x = (coordinates[0] - translate[0]) / scale,
- y = (coordinates[1] - translate[1]) / scale;
- return [
- 360 * x,
- -360 * y
- ];
- };
-
- equirectangular.scale = function(x) {
- if (!arguments.length) return scale;
- scale = +x;
- return equirectangular;
- };
-
- equirectangular.translate = function(x) {
- if (!arguments.length) return translate;
- translate = [+x[0], +x[1]];
- return equirectangular;
- };
-
- return equirectangular;
-};
-d3.geo.mercator = function() {
- var scale = 500,
- translate = [480, 250];
-
- function mercator(coordinates) {
- var x = coordinates[0] / 360,
- y = -(Math.log(Math.tan(Math.PI / 4 + coordinates[1] * d3_geo_radians / 2)) / d3_geo_radians) / 360;
- return [
- scale * x + translate[0],
- scale * Math.max(-.5, Math.min(.5, y)) + translate[1]
- ];
- }
-
- mercator.invert = function(coordinates) {
- var x = (coordinates[0] - translate[0]) / scale,
- y = (coordinates[1] - translate[1]) / scale;
- return [
- 360 * x,
- 2 * Math.atan(Math.exp(-360 * y * d3_geo_radians)) / d3_geo_radians - 90
- ];
- };
-
- mercator.scale = function(x) {
- if (!arguments.length) return scale;
- scale = +x;
- return mercator;
- };
-
- mercator.translate = function(x) {
- if (!arguments.length) return translate;
- translate = [+x[0], +x[1]];
- return mercator;
- };
-
- return mercator;
-};
-function d3_geo_type(types, defaultValue) {
- return function(object) {
- return object && types.hasOwnProperty(object.type) ? types[object.type](object) : defaultValue;
- };
-}
-/**
- * Returns a function that, given a GeoJSON object (e.g., a feature), returns
- * the corresponding SVG path. The function can be customized by overriding the
- * projection. Point features are mapped to circles with a default radius of
- * 4.5px; the radius can be specified either as a constant or a function that
- * is evaluated per object.
- */
-d3.geo.path = function() {
- var pointRadius = 4.5,
- pointCircle = d3_path_circle(pointRadius),
- projection = d3.geo.albersUsa();
-
- function path(d, i) {
- if (typeof pointRadius === "function") {
- pointCircle = d3_path_circle(pointRadius.apply(this, arguments));
- }
- return pathType(d) || null;
- }
-
- function project(coordinates) {
- return projection(coordinates).join(",");
- }
-
- var pathType = d3_geo_type({
-
- FeatureCollection: function(o) {
- var path = [],
- features = o.features,
- i = -1, // features.index
- n = features.length;
- while (++i < n) path.push(pathType(features[i].geometry));
- return path.join("");
- },
-
- Feature: function(o) {
- return pathType(o.geometry);
- },
-
- Point: function(o) {
- return "M" + project(o.coordinates) + pointCircle;
- },
-
- MultiPoint: function(o) {
- var path = [],
- coordinates = o.coordinates,
- i = -1, // coordinates.index
- n = coordinates.length;
- while (++i < n) path.push("M", project(coordinates[i]), pointCircle);
- return path.join("");
- },
-
- LineString: function(o) {
- var path = ["M"],
- coordinates = o.coordinates,
- i = -1, // coordinates.index
- n = coordinates.length;
- while (++i < n) path.push(project(coordinates[i]), "L");
- path.pop();
- return path.join("");
- },
-
- MultiLineString: function(o) {
- var path = [],
- coordinates = o.coordinates,
- i = -1, // coordinates.index
- n = coordinates.length,
- subcoordinates, // coordinates[i]
- j, // subcoordinates.index
- m; // subcoordinates.length
- while (++i < n) {
- subcoordinates = coordinates[i];
- j = -1;
- m = subcoordinates.length;
- path.push("M");
- while (++j < m) path.push(project(subcoordinates[j]), "L");
- path.pop();
- }
- return path.join("");
- },
-
- Polygon: function(o) {
- var path = [],
- coordinates = o.coordinates,
- i = -1, // coordinates.index
- n = coordinates.length,
- subcoordinates, // coordinates[i]
- j, // subcoordinates.index
- m; // subcoordinates.length
- while (++i < n) {
- subcoordinates = coordinates[i];
- j = -1;
- if ((m = subcoordinates.length - 1) > 0) {
- path.push("M");
- while (++j < m) path.push(project(subcoordinates[j]), "L");
- path[path.length - 1] = "Z";
- }
- }
- return path.join("");
- },
-
- MultiPolygon: function(o) {
- var path = [],
- coordinates = o.coordinates,
- i = -1, // coordinates index
- n = coordinates.length,
- subcoordinates, // coordinates[i]
- j, // subcoordinates index
- m, // subcoordinates.length
- subsubcoordinates, // subcoordinates[j]
- k, // subsubcoordinates index
- p; // subsubcoordinates.length
- while (++i < n) {
- subcoordinates = coordinates[i];
- j = -1;
- m = subcoordinates.length;
- while (++j < m) {
- subsubcoordinates = subcoordinates[j];
- k = -1;
- if ((p = subsubcoordinates.length - 1) > 0) {
- path.push("M");
- while (++k < p) path.push(project(subsubcoordinates[k]), "L");
- path[path.length - 1] = "Z";
- }
- }
- }
- return path.join("");
- },
-
- GeometryCollection: function(o) {
- var path = [],
- geometries = o.geometries,
- i = -1, // geometries index
- n = geometries.length;
- while (++i < n) path.push(pathType(geometries[i]));
- return path.join("");
- }
-
- });
-
- var areaType = path.area = d3_geo_type({
-
- FeatureCollection: function(o) {
- var area = 0,
- features = o.features,
- i = -1, // features.index
- n = features.length;
- while (++i < n) area += areaType(features[i]);
- return area;
- },
-
- Feature: function(o) {
- return areaType(o.geometry);
- },
-
- Polygon: function(o) {
- return polygonArea(o.coordinates);
- },
-
- MultiPolygon: function(o) {
- var sum = 0,
- coordinates = o.coordinates,
- i = -1, // coordinates index
- n = coordinates.length;
- while (++i < n) sum += polygonArea(coordinates[i]);
- return sum;
- },
-
- GeometryCollection: function(o) {
- var sum = 0,
- geometries = o.geometries,
- i = -1, // geometries index
- n = geometries.length;
- while (++i < n) sum += areaType(geometries[i]);
- return sum;
- }
-
- }, 0);
-
- function polygonArea(coordinates) {
- var sum = area(coordinates[0]), // exterior ring
- i = 0, // coordinates.index
- n = coordinates.length;
- while (++i < n) sum -= area(coordinates[i]); // holes
- return sum;
- }
-
- function polygonCentroid(coordinates) {
- var polygon = d3.geom.polygon(coordinates[0].map(projection)), // exterior ring
- area = polygon.area(),
- centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1),
- x = centroid[0],
- y = centroid[1],
- z = area,
- i = 0, // coordinates index
- n = coordinates.length;
- while (++i < n) {
- polygon = d3.geom.polygon(coordinates[i].map(projection)); // holes
- area = polygon.area();
- centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1);
- x -= centroid[0];
- y -= centroid[1];
- z -= area;
- }
- return [x, y, 6 * z]; // weighted centroid
- }
-
- var centroidType = path.centroid = d3_geo_type({
-
- // TODO FeatureCollection
- // TODO Point
- // TODO MultiPoint
- // TODO LineString
- // TODO MultiLineString
- // TODO GeometryCollection
-
- Feature: function(o) {
- return centroidType(o.geometry);
- },
-
- Polygon: function(o) {
- var centroid = polygonCentroid(o.coordinates);
- return [centroid[0] / centroid[2], centroid[1] / centroid[2]];
- },
-
- MultiPolygon: function(o) {
- var area = 0,
- coordinates = o.coordinates,
- centroid,
- x = 0,
- y = 0,
- z = 0,
- i = -1, // coordinates index
- n = coordinates.length;
- while (++i < n) {
- centroid = polygonCentroid(coordinates[i]);
- x += centroid[0];
- y += centroid[1];
- z += centroid[2];
- }
- return [x / z, y / z];
- }
-
- });
-
- function area(coordinates) {
- return Math.abs(d3.geom.polygon(coordinates.map(projection)).area());
- }
-
- path.projection = function(x) {
- projection = x;
- return path;
- };
-
- path.pointRadius = function(x) {
- if (typeof x === "function") pointRadius = x;
- else {
- pointRadius = +x;
- pointCircle = d3_path_circle(pointRadius);
- }
- return path;
- };
-
- return path;
-};
-
-function d3_path_circle(radius) {
- return "m0," + radius
- + "a" + radius + "," + radius + " 0 1,1 0," + (-2 * radius)
- + "a" + radius + "," + radius + " 0 1,1 0," + (+2 * radius)
- + "z";
-}
-/**
- * Given a GeoJSON object, returns the corresponding bounding box. The bounding
- * box is represented by a two-dimensional array: [[left, bottom], [right,
- * top]], where left is the minimum longitude, bottom is the minimum latitude,
- * right is maximum longitude, and top is the maximum latitude.
- */
-d3.geo.bounds = function(feature) {
- var left = Infinity,
- bottom = Infinity,
- right = -Infinity,
- top = -Infinity;
- d3_geo_bounds(feature, function(x, y) {
- if (x < left) left = x;
- if (x > right) right = x;
- if (y < bottom) bottom = y;
- if (y > top) top = y;
- });
- return [[left, bottom], [right, top]];
-};
-
-function d3_geo_bounds(o, f) {
- if (d3_geo_boundsTypes.hasOwnProperty(o.type)) d3_geo_boundsTypes[o.type](o, f);
-}
-
-var d3_geo_boundsTypes = {
- Feature: d3_geo_boundsFeature,
- FeatureCollection: d3_geo_boundsFeatureCollection,
- GeometryCollection: d3_geo_boundsGeometryCollection,
- LineString: d3_geo_boundsLineString,
- MultiLineString: d3_geo_boundsMultiLineString,
- MultiPoint: d3_geo_boundsLineString,
- MultiPolygon: d3_geo_boundsMultiPolygon,
- Point: d3_geo_boundsPoint,
- Polygon: d3_geo_boundsPolygon
-};
-
-function d3_geo_boundsFeature(o, f) {
- d3_geo_bounds(o.geometry, f);
-}
-
-function d3_geo_boundsFeatureCollection(o, f) {
- for (var a = o.features, i = 0, n = a.length; i < n; i++) {
- d3_geo_bounds(a[i].geometry, f);
- }
-}
-
-function d3_geo_boundsGeometryCollection(o, f) {
- for (var a = o.geometries, i = 0, n = a.length; i < n; i++) {
- d3_geo_bounds(a[i], f);
- }
-}
-
-function d3_geo_boundsLineString(o, f) {
- for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
- f.apply(null, a[i]);
- }
-}
-
-function d3_geo_boundsMultiLineString(o, f) {
- for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
- for (var b = a[i], j = 0, m = b.length; j < m; j++) {
- f.apply(null, b[j]);
- }
- }
-}
-
-function d3_geo_boundsMultiPolygon(o, f) {
- for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) {
- for (var b = a[i][0], j = 0, m = b.length; j < m; j++) {
- f.apply(null, b[j]);
- }
- }
-}
-
-function d3_geo_boundsPoint(o, f) {
- f.apply(null, o.coordinates);
-}
-
-function d3_geo_boundsPolygon(o, f) {
- for (var a = o.coordinates[0], i = 0, n = a.length; i < n; i++) {
- f.apply(null, a[i]);
- }
-}
-// TODO breakAtDateLine?
-
-d3.geo.circle = function() {
- var origin = [0, 0],
- degrees = 90 - 1e-2,
- radians = degrees * d3_geo_radians,
- arc = d3.geo.greatArc().target(Object);
-
- function circle() {
- // TODO render a circle as a Polygon
- }
-
- function visible(point) {
- return arc.distance(point) < radians;
- }
-
- circle.clip = function(d) {
- arc.source(typeof origin === "function" ? origin.apply(this, arguments) : origin);
- return clipType(d);
- };
-
- var clipType = d3_geo_type({
-
- FeatureCollection: function(o) {
- var features = o.features.map(clipType).filter(Object);
- return features && (o = Object.create(o), o.features = features, o);
- },
-
- Feature: function(o) {
- var geometry = clipType(o.geometry);
- return geometry && (o = Object.create(o), o.geometry = geometry, o);
- },
-
- Point: function(o) {
- return visible(o.coordinates) && o;
- },
-
- MultiPoint: function(o) {
- var coordinates = o.coordinates.filter(visible);
- return coordinates.length && {
- type: o.type,
- coordinates: coordinates
- };
- },
-
- LineString: function(o) {
- var coordinates = clip(o.coordinates);
- return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
- },
-
- MultiLineString: function(o) {
- var coordinates = o.coordinates.map(clip).filter(function(d) { return d.length; });
- return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
- },
-
- Polygon: function(o) {
- var coordinates = o.coordinates.map(clip);
- return coordinates[0].length && (o = Object.create(o), o.coordinates = coordinates, o);
- },
-
- MultiPolygon: function(o) {
- var coordinates = o.coordinates.map(function(d) { return d.map(clip); }).filter(function(d) { return d[0].length; });
- return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
- },
-
- GeometryCollection: function(o) {
- var geometries = o.geometries.map(clipType).filter(Object);
- return geometries.length && (o = Object.create(o), o.geometries = geometries, o);
- }
-
- });
-
- function clip(coordinates) {
- var i = -1,
- n = coordinates.length,
- clipped = [],
- p0,
- p1,
- p2,
- d0,
- d1;
-
- while (++i < n) {
- d1 = arc.distance(p2 = coordinates[i]);
- if (d1 < radians) {
- if (p1) clipped.push(d3_geo_greatArcInterpolate(p1, p2)((d0 - radians) / (d0 - d1)));
- clipped.push(p2);
- p0 = p1 = null;
- } else {
- p1 = p2;
- if (!p0 && clipped.length) {
- clipped.push(d3_geo_greatArcInterpolate(clipped[clipped.length - 1], p1)((radians - d0) / (d1 - d0)));
- p0 = p1;
- }
- }
- d0 = d1;
- }
-
- if (p1 && clipped.length) {
- d1 = arc.distance(p2 = clipped[0]);
- clipped.push(d3_geo_greatArcInterpolate(p1, p2)((d0 - radians) / (d0 - d1)));
- }
-
- return resample(clipped);
- }
-
- // Resample coordinates, creating great arcs between each.
- function resample(coordinates) {
- var i = 0,
- n = coordinates.length,
- j,
- m,
- resampled = n ? [coordinates[0]] : coordinates,
- resamples,
- origin = arc.source();
-
- while (++i < n) {
- resamples = arc.source(coordinates[i - 1])(coordinates[i]).coordinates;
- for (j = 0, m = resamples.length; ++j < m;) resampled.push(resamples[j]);
- }
-
- arc.source(origin);
- return resampled;
- }
-
- circle.origin = function(x) {
- if (!arguments.length) return origin;
- origin = x;
- return circle;
- };
-
- circle.angle = function(x) {
- if (!arguments.length) return degrees;
- radians = (degrees = +x) * d3_geo_radians;
- return circle;
- };
-
- // Precision is specified in degrees.
- circle.precision = function(x) {
- if (!arguments.length) return arc.precision();
- arc.precision(x);
- return circle;
- };
-
- return circle;
-}
-d3.geo.greatArc = function() {
- var source = d3_geo_greatArcSource,
- target = d3_geo_greatArcTarget,
- precision = 6 * d3_geo_radians;
-
- function greatArc() {
- var a = typeof source === "function" ? source.apply(this, arguments) : source,
- b = typeof target === "function" ? target.apply(this, arguments) : target,
- i = d3_geo_greatArcInterpolate(a, b),
- dt = precision / i.d,
- t = 0,
- coordinates = [a];
- while ((t += dt) < 1) coordinates.push(i(t));
- coordinates.push(b);
- return {
- type: "LineString",
- coordinates: coordinates
- };
- }
-
- // Length returned in radians; multiply by radius for distance.
- greatArc.distance = function() {
- var a = typeof source === "function" ? source.apply(this, arguments) : source,
- b = typeof target === "function" ? target.apply(this, arguments) : target;
- return d3_geo_greatArcInterpolate(a, b).d;
- };
-
- greatArc.source = function(x) {
- if (!arguments.length) return source;
- source = x;
- return greatArc;
- };
-
- greatArc.target = function(x) {
- if (!arguments.length) return target;
- target = x;
- return greatArc;
- };
-
- // Precision is specified in degrees.
- greatArc.precision = function(x) {
- if (!arguments.length) return precision / d3_geo_radians;
- precision = x * d3_geo_radians;
- return greatArc;
- };
-
- return greatArc;
-};
-
-function d3_geo_greatArcSource(d) {
- return d.source;
-}
-
-function d3_geo_greatArcTarget(d) {
- return d.target;
-}
-
-function d3_geo_greatArcInterpolate(a, b) {
- var x0 = a[0] * d3_geo_radians, cx0 = Math.cos(x0), sx0 = Math.sin(x0),
- y0 = a[1] * d3_geo_radians, cy0 = Math.cos(y0), sy0 = Math.sin(y0),
- x1 = b[0] * d3_geo_radians, cx1 = Math.cos(x1), sx1 = Math.sin(x1),
- y1 = b[1] * d3_geo_radians, cy1 = Math.cos(y1), sy1 = Math.sin(y1),
- d = interpolate.d = Math.acos(Math.max(-1, Math.min(1, sy0 * sy1 + cy0 * cy1 * Math.cos(x1 - x0)))),
- sd = Math.sin(d);
-
- // From http://williams.best.vwh.net/avform.htm#Intermediate
- function interpolate(t) {
- var A = Math.sin(d - (t *= d)) / sd,
- B = Math.sin(t) / sd,
- x = A * cy0 * cx0 + B * cy1 * cx1,
- y = A * cy0 * sx0 + B * cy1 * sx1,
- z = A * sy0 + B * sy1;
- return [
- Math.atan2(y, x) / d3_geo_radians,
- Math.atan2(z, Math.sqrt(x * x + y * y)) / d3_geo_radians
- ];
- }
-
- return interpolate;
-}
-d3.geo.greatCircle = d3.geo.circle;
-d3.geom = {};
-/**
- * Computes a contour for a given input grid function using the <a
- * href="http://en.wikipedia.org/wiki/Marching_squares">marching
- * squares</a> algorithm. Returns the contour polygon as an array of points.
- *
- * @param grid a two-input function(x, y) that returns true for values
- * inside the contour and false for values outside the contour.
- * @param start an optional starting point [x, y] on the grid.
- * @returns polygon [[x1, y1], [x2, y2], …]
- */
-d3.geom.contour = function(grid, start) {
- var s = start || d3_geom_contourStart(grid), // starting point
- c = [], // contour polygon
- x = s[0], // current x position
- y = s[1], // current y position
- dx = 0, // next x direction
- dy = 0, // next y direction
- pdx = NaN, // previous x direction
- pdy = NaN, // previous y direction
- i = 0;
-
- do {
- // determine marching squares index
- i = 0;
- if (grid(x-1, y-1)) i += 1;
- if (grid(x, y-1)) i += 2;
- if (grid(x-1, y )) i += 4;
- if (grid(x, y )) i += 8;
-
- // determine next direction
- if (i === 6) {
- dx = pdy === -1 ? -1 : 1;
- dy = 0;
- } else if (i === 9) {
- dx = 0;
- dy = pdx === 1 ? -1 : 1;
- } else {
- dx = d3_geom_contourDx[i];
- dy = d3_geom_contourDy[i];
- }
-
- // update contour polygon
- if (dx != pdx && dy != pdy) {
- c.push([x, y]);
- pdx = dx;
- pdy = dy;
- }
-
- x += dx;
- y += dy;
- } while (s[0] != x || s[1] != y);
-
- return c;
-};
-
-// lookup tables for marching directions
-var d3_geom_contourDx = [1, 0, 1, 1,-1, 0,-1, 1,0, 0,0,0,-1, 0,-1,NaN],
- d3_geom_contourDy = [0,-1, 0, 0, 0,-1, 0, 0,1,-1,1,1, 0,-1, 0,NaN];
-
-function d3_geom_contourStart(grid) {
- var x = 0,
- y = 0;
-
- // search for a starting point; begin at origin
- // and proceed along outward-expanding diagonals
- while (true) {
- if (grid(x,y)) {
- return [x,y];
- }
- if (x === 0) {
- x = y + 1;
- y = 0;
- } else {
- x = x - 1;
- y = y + 1;
- }
- }
-}
-/**
- * Computes the 2D convex hull of a set of points using Graham's scanning
- * algorithm. The algorithm has been implemented as described in Cormen,
- * Leiserson, and Rivest's Introduction to Algorithms. The running time of
- * this algorithm is O(n log n), where n is the number of input points.
- *
- * @param vertices [[x1, y1], [x2, y2], …]
- * @returns polygon [[x1, y1], [x2, y2], …]
- */
-d3.geom.hull = function(vertices) {
- if (vertices.length < 3) return [];
-
- var len = vertices.length,
- plen = len - 1,
- points = [],
- stack = [],
- i, j, h = 0, x1, y1, x2, y2, u, v, a, sp;
-
- // find the starting ref point: leftmost point with the minimum y coord
- for (i=1; i<len; ++i) {
- if (vertices[i][1] < vertices[h][1]) {
- h = i;
- } else if (vertices[i][1] == vertices[h][1]) {
- h = (vertices[i][0] < vertices[h][0] ? i : h);
- }
- }
-
- // calculate polar angles from ref point and sort
- for (i=0; i<len; ++i) {
- if (i === h) continue;
- y1 = vertices[i][1] - vertices[h][1];
- x1 = vertices[i][0] - vertices[h][0];
- points.push({angle: Math.atan2(y1, x1), index: i});
- }
- points.sort(function(a, b) { return a.angle - b.angle; });
-
- // toss out duplicate angles
- a = points[0].angle;
- v = points[0].index;
- u = 0;
- for (i=1; i<plen; ++i) {
- j = points[i].index;
- if (a == points[i].angle) {
- // keep angle for point most distant from the reference
- x1 = vertices[v][0] - vertices[h][0];
- y1 = vertices[v][1] - vertices[h][1];
- x2 = vertices[j][0] - vertices[h][0];
- y2 = vertices[j][1] - vertices[h][1];
- if ((x1*x1 + y1*y1) >= (x2*x2 + y2*y2)) {
- points[i].index = -1;
- } else {
- points[u].index = -1;
- a = points[i].angle;
- u = i;
- v = j;
- }
- } else {
- a = points[i].angle;
- u = i;
- v = j;
- }
- }
-
- // initialize the stack
- stack.push(h);
- for (i=0, j=0; i<2; ++j) {
- if (points[j].index !== -1) {
- stack.push(points[j].index);
- i++;
- }
- }
- sp = stack.length;
-
- // do graham's scan
- for (; j<plen; ++j) {
- if (points[j].index === -1) continue; // skip tossed out points
- while (!d3_geom_hullCCW(stack[sp-2], stack[sp-1], points[j].index, vertices)) {
- --sp;
- }
- stack[sp++] = points[j].index;
- }
-
- // construct the hull
- var poly = [];
- for (i=0; i<sp; ++i) {
- poly.push(vertices[stack[i]]);
- }
- return poly;
-}
-
-// are three points in counter-clockwise order?
-function d3_geom_hullCCW(i1, i2, i3, v) {
- var t, a, b, c, d, e, f;
- t = v[i1]; a = t[0]; b = t[1];
- t = v[i2]; c = t[0]; d = t[1];
- t = v[i3]; e = t[0]; f = t[1];
- return ((f-b)*(c-a) - (d-b)*(e-a)) > 0;
-}
-// Note: requires coordinates to be counterclockwise and convex!
-d3.geom.polygon = function(coordinates) {
-
- coordinates.area = function() {
- var i = 0,
- n = coordinates.length,
- a = coordinates[n - 1][0] * coordinates[0][1],
- b = coordinates[n - 1][1] * coordinates[0][0];
- while (++i < n) {
- a += coordinates[i - 1][0] * coordinates[i][1];
- b += coordinates[i - 1][1] * coordinates[i][0];
- }
- return (b - a) * .5;
- };
-
- coordinates.centroid = function(k) {
- var i = -1,
- n = coordinates.length,
- x = 0,
- y = 0,
- a,
- b = coordinates[n - 1],
- c;
- if (!arguments.length) k = -1 / (6 * coordinates.area());
- while (++i < n) {
- a = b;
- b = coordinates[i];
- c = a[0] * b[1] - b[0] * a[1];
- x += (a[0] + b[0]) * c;
- y += (a[1] + b[1]) * c;
- }
- return [x * k, y * k];
- };
-
- // The Sutherland-Hodgman clipping algorithm.
- coordinates.clip = function(subject) {
- var input,
- i = -1,
- n = coordinates.length,
- j,
- m,
- a = coordinates[n - 1],
- b,
- c,
- d;
- while (++i < n) {
- input = subject.slice();
- subject.length = 0;
- b = coordinates[i];
- c = input[(m = input.length) - 1];
- j = -1;
- while (++j < m) {
- d = input[j];
- if (d3_geom_polygonInside(d, a, b)) {
- if (!d3_geom_polygonInside(c, a, b)) {
- subject.push(d3_geom_polygonIntersect(c, d, a, b));
- }
- subject.push(d);
- } else if (d3_geom_polygonInside(c, a, b)) {
- subject.push(d3_geom_polygonIntersect(c, d, a, b));
- }
- c = d;
- }
- a = b;
- }
- return subject;
- };
-
- return coordinates;
-};
-
-function d3_geom_polygonInside(p, a, b) {
- return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]);
-}
-
-// Intersect two infinite lines cd and ab.
-function d3_geom_polygonIntersect(c, d, a, b) {
- var x1 = c[0], x2 = d[0], x3 = a[0], x4 = b[0],
- y1 = c[1], y2 = d[1], y3 = a[1], y4 = b[1],
- x13 = x1 - x3,
- x21 = x2 - x1,
- x43 = x4 - x3,
- y13 = y1 - y3,
- y21 = y2 - y1,
- y43 = y4 - y3,
- ua = (x43 * y13 - y43 * x13) / (y43 * x21 - x43 * y21);
- return [x1 + ua * x21, y1 + ua * y21];
-}
-// Adapted from Nicolas Garcia Belmonte's JIT implementation:
-// http://blog.thejit.org/2010/02/12/voronoi-tessellation/
-// http://blog.thejit.org/assets/voronoijs/voronoi.js
-// See lib/jit/LICENSE for details.
-
-// Notes:
-//
-// This implementation does not clip the returned polygons, so if you want to
-// clip them to a particular shape you will need to do that either in SVG or by
-// post-processing with d3.geom.polygon's clip method.
-//
-// If any vertices are coincident or have NaN positions, the behavior of this
-// method is undefined. Most likely invalid polygons will be returned. You
-// should filter invalid points, and consolidate coincident points, before
-// computing the tessellation.
-
-/**
- * @param vertices [[x1, y1], [x2, y2], …]
- * @returns polygons [[[x1, y1], [x2, y2], …], …]
- */
-d3.geom.voronoi = function(vertices) {
- var polygons = vertices.map(function() { return []; });
-
- d3_voronoi_tessellate(vertices, function(e) {
- var s1,
- s2,
- x1,
- x2,
- y1,
- y2;
- if (e.a === 1 && e.b >= 0) {
- s1 = e.ep.r;
- s2 = e.ep.l;
- } else {
- s1 = e.ep.l;
- s2 = e.ep.r;
- }
- if (e.a === 1) {
- y1 = s1 ? s1.y : -1e6;
- x1 = e.c - e.b * y1;
- y2 = s2 ? s2.y : 1e6;
- x2 = e.c - e.b * y2;
- } else {
- x1 = s1 ? s1.x : -1e6;
- y1 = e.c - e.a * x1;
- x2 = s2 ? s2.x : 1e6;
- y2 = e.c - e.a * x2;
- }
- var v1 = [x1, y1],
- v2 = [x2, y2];
- polygons[e.region.l.index].push(v1, v2);
- polygons[e.region.r.index].push(v1, v2);
- });
-
- // Reconnect the polygon segments into counterclockwise loops.
- return polygons.map(function(polygon, i) {
- var cx = vertices[i][0],
- cy = vertices[i][1];
- polygon.forEach(function(v) {
- v.angle = Math.atan2(v[0] - cx, v[1] - cy);
- });
- return polygon.sort(function(a, b) {
- return a.angle - b.angle;
- }).filter(function(d, i) {
- return !i || (d.angle - polygon[i - 1].angle > 1e-10);
- });
- });
-};
-
-var d3_voronoi_opposite = {"l": "r", "r": "l"};
-
-function d3_voronoi_tessellate(vertices, callback) {
-
- var Sites = {
- list: vertices
- .map(function(v, i) {
- return {
- index: i,
- x: v[0],
- y: v[1]
- };
- })
- .sort(function(a, b) {
- return a.y < b.y ? -1
- : a.y > b.y ? 1
- : a.x < b.x ? -1
- : a.x > b.x ? 1
- : 0;
- }),
- bottomSite: null
- };
-
- var EdgeList = {
- list: [],
- leftEnd: null,
- rightEnd: null,
-
- init: function() {
- EdgeList.leftEnd = EdgeList.createHalfEdge(null, "l");
- EdgeList.rightEnd = EdgeList.createHalfEdge(null, "l");
- EdgeList.leftEnd.r = EdgeList.rightEnd;
- EdgeList.rightEnd.l = EdgeList.leftEnd;
- EdgeList.list.unshift(EdgeList.leftEnd, EdgeList.rightEnd);
- },
-
- createHalfEdge: function(edge, side) {
- return {
- edge: edge,
- side: side,
- vertex: null,
- "l": null,
- "r": null
- };
- },
-
- insert: function(lb, he) {
- he.l = lb;
- he.r = lb.r;
- lb.r.l = he;
- lb.r = he;
- },
-
- leftBound: function(p) {
- var he = EdgeList.leftEnd;
- do {
- he = he.r;
- } while (he != EdgeList.rightEnd && Geom.rightOf(he, p));
- he = he.l;
- return he;
- },
-
- del: function(he) {
- he.l.r = he.r;
- he.r.l = he.l;
- he.edge = null;
- },
-
- right: function(he) {
- return he.r;
- },
-
- left: function(he) {
- return he.l;
- },
-
- leftRegion: function(he) {
- return he.edge == null
- ? Sites.bottomSite
- : he.edge.region[he.side];
- },
-
- rightRegion: function(he) {
- return he.edge == null
- ? Sites.bottomSite
- : he.edge.region[d3_voronoi_opposite[he.side]];
- }
- };
-
- var Geom = {
-
- bisect: function(s1, s2) {
- var newEdge = {
- region: {"l": s1, "r": s2},
- ep: {"l": null, "r": null}
- };
-
- var dx = s2.x - s1.x,
- dy = s2.y - s1.y,
- adx = dx > 0 ? dx : -dx,
- ady = dy > 0 ? dy : -dy;
-
- newEdge.c = s1.x * dx + s1.y * dy
- + (dx * dx + dy * dy) * .5;
-
- if (adx > ady) {
- newEdge.a = 1;
- newEdge.b = dy / dx;
- newEdge.c /= dx;
- } else {
- newEdge.b = 1;
- newEdge.a = dx / dy;
- newEdge.c /= dy;
- }
-
- return newEdge;
- },
-
- intersect: function(el1, el2) {
- var e1 = el1.edge,
- e2 = el2.edge;
- if (!e1 || !e2 || (e1.region.r == e2.region.r)) {
- return null;
- }
- var d = (e1.a * e2.b) - (e1.b * e2.a);
- if (Math.abs(d) < 1e-10) {
- return null;
- }
- var xint = (e1.c * e2.b - e2.c * e1.b) / d,
- yint = (e2.c * e1.a - e1.c * e2.a) / d,
- e1r = e1.region.r,
- e2r = e2.region.r,
- el,
- e;
- if ((e1r.y < e2r.y) ||
- (e1r.y == e2r.y && e1r.x < e2r.x)) {
- el = el1;
- e = e1;
- } else {
- el = el2;
- e = e2;
- }
- var rightOfSite = (xint >= e.region.r.x);
- if ((rightOfSite && (el.side === "l")) ||
- (!rightOfSite && (el.side === "r"))) {
- return null;
- }
- return {
- x: xint,
- y: yint
- };
- },
-
- rightOf: function(he, p) {
- var e = he.edge,
- topsite = e.region.r,
- rightOfSite = (p.x > topsite.x);
-
- if (rightOfSite && (he.side === "l")) {
- return 1;
- }
- if (!rightOfSite && (he.side === "r")) {
- return 0;
- }
- if (e.a === 1) {
- var dyp = p.y - topsite.y,
- dxp = p.x - topsite.x,
- fast = 0,
- above = 0;
-
- if ((!rightOfSite && (e.b < 0)) ||
- (rightOfSite && (e.b >= 0))) {
- above = fast = (dyp >= e.b * dxp);
- } else {
- above = ((p.x + p.y * e.b) > e.c);
- if (e.b < 0) {
- above = !above;
- }
- if (!above) {
- fast = 1;
- }
- }
- if (!fast) {
- var dxs = topsite.x - e.region.l.x;
- above = (e.b * (dxp * dxp - dyp * dyp)) <
- (dxs * dyp * (1 + 2 * dxp / dxs + e.b * e.b));
-
- if (e.b < 0) {
- above = !above;
- }
- }
- } else /* e.b == 1 */ {
- var yl = e.c - e.a * p.x,
- t1 = p.y - yl,
- t2 = p.x - topsite.x,
- t3 = yl - topsite.y;
-
- above = (t1 * t1) > (t2 * t2 + t3 * t3);
- }
- return he.side === "l" ? above : !above;
- },
-
- endPoint: function(edge, side, site) {
- edge.ep[side] = site;
- if (!edge.ep[d3_voronoi_opposite[side]]) return;
- callback(edge);
- },
-
- distance: function(s, t) {
- var dx = s.x - t.x,
- dy = s.y - t.y;
- return Math.sqrt(dx * dx + dy * dy);
- }
- };
-
- var EventQueue = {
- list: [],
-
- insert: function(he, site, offset) {
- he.vertex = site;
- he.ystar = site.y + offset;
- for (var i=0, list=EventQueue.list, l=list.length; i<l; i++) {
- var next = list[i];
- if (he.ystar > next.ystar ||
- (he.ystar == next.ystar &&
- site.x > next.vertex.x)) {
- continue;
- } else {
- break;
- }
- }
- list.splice(i, 0, he);
- },
-
- del: function(he) {
- for (var i=0, ls=EventQueue.list, l=ls.length; i<l && (ls[i] != he); ++i) {}
- ls.splice(i, 1);
- },
-
- empty: function() { return EventQueue.list.length === 0; },
-
- nextEvent: function(he) {
- for (var i=0, ls=EventQueue.list, l=ls.length; i<l; ++i) {
- if (ls[i] == he) return ls[i+1];
- }
- return null;
- },
-
- min: function() {
- var elem = EventQueue.list[0];
- return {
- x: elem.vertex.x,
- y: elem.ystar
- };
- },
-
- extractMin: function() {
- return EventQueue.list.shift();
- }
- };
-
- EdgeList.init();
- Sites.bottomSite = Sites.list.shift();
-
- var newSite = Sites.list.shift(), newIntStar;
- var lbnd, rbnd, llbnd, rrbnd, bisector;
- var bot, top, temp, p, v;
- var e, pm;
-
- while (true) {
- if (!EventQueue.empty()) {
- newIntStar = EventQueue.min();
- }
- if (newSite && (EventQueue.empty()
- || newSite.y < newIntStar.y
- || (newSite.y == newIntStar.y
- && newSite.x < newIntStar.x))) { //new site is smallest
- lbnd = EdgeList.leftBound(newSite);
- rbnd = EdgeList.right(lbnd);
- bot = EdgeList.rightRegion(lbnd);
- e = Geom.bisect(bot, newSite);
- bisector = EdgeList.createHalfEdge(e, "l");
- EdgeList.insert(lbnd, bisector);
- p = Geom.intersect(lbnd, bisector);
- if (p) {
- EventQueue.del(lbnd);
- EventQueue.insert(lbnd, p, Geom.distance(p, newSite));
- }
- lbnd = bisector;
- bisector = EdgeList.createHalfEdge(e, "r");
- EdgeList.insert(lbnd, bisector);
- p = Geom.intersect(bisector, rbnd);
- if (p) {
- EventQueue.insert(bisector, p, Geom.distance(p, newSite));
- }
- newSite = Sites.list.shift();
- } else if (!EventQueue.empty()) { //intersection is smallest
- lbnd = EventQueue.extractMin();
- llbnd = EdgeList.left(lbnd);
- rbnd = EdgeList.right(lbnd);
- rrbnd = EdgeList.right(rbnd);
- bot = EdgeList.leftRegion(lbnd);
- top = EdgeList.rightRegion(rbnd);
- v = lbnd.vertex;
- Geom.endPoint(lbnd.edge, lbnd.side, v);
- Geom.endPoint(rbnd.edge, rbnd.side, v);
- EdgeList.del(lbnd);
- EventQueue.del(rbnd);
- EdgeList.del(rbnd);
- pm = "l";
- if (bot.y > top.y) {
- temp = bot;
- bot = top;
- top = temp;
- pm = "r";
- }
- e = Geom.bisect(bot, top);
- bisector = EdgeList.createHalfEdge(e, pm);
- EdgeList.insert(llbnd, bisector);
- Geom.endPoint(e, d3_voronoi_opposite[pm], v);
- p = Geom.intersect(llbnd, bisector);
- if (p) {
- EventQueue.del(llbnd);
- EventQueue.insert(llbnd, p, Geom.distance(p, bot));
- }
- p = Geom.intersect(bisector, rrbnd);
- if (p) {
- EventQueue.insert(bisector, p, Geom.distance(p, bot));
- }
- } else {
- break;
- }
- }//end while
-
- for (lbnd = EdgeList.right(EdgeList.leftEnd);
- lbnd != EdgeList.rightEnd;
- lbnd = EdgeList.right(lbnd)) {
- callback(lbnd.edge);
- }
-}
-/**
-* @param vertices [[x1, y1], [x2, y2], …]
-* @returns triangles [[[x1, y1], [x2, y2], [x3, y3]], …]
- */
-d3.geom.delaunay = function(vertices) {
- var edges = vertices.map(function() { return []; }),
- triangles = [];
-
- // Use the Voronoi tessellation to determine Delaunay edges.
- d3_voronoi_tessellate(vertices, function(e) {
- edges[e.region.l.index].push(vertices[e.region.r.index]);
- });
-
- // Reconnect the edges into counterclockwise triangles.
- edges.forEach(function(edge, i) {
- var v = vertices[i],
- cx = v[0],
- cy = v[1];
- edge.forEach(function(v) {
- v.angle = Math.atan2(v[0] - cx, v[1] - cy);
- });
- edge.sort(function(a, b) {
- return a.angle - b.angle;
- });
- for (var j = 0, m = edge.length - 1; j < m; j++) {
- triangles.push([v, edge[j], edge[j + 1]]);
- }
- });
-
- return triangles;
-};
-// Constructs a new quadtree for the specified array of points. A quadtree is a
-// two-dimensional recursive spatial subdivision. This implementation uses
-// square partitions, dividing each square into four equally-sized squares. Each
-// point exists in a unique node; if multiple points are in the same position,
-// some points may be stored on internal nodes rather than leaf nodes. Quadtrees
-// can be used to accelerate various spatial operations, such as the Barnes-Hut
-// approximation for computing n-body forces, or collision detection.
-d3.geom.quadtree = function(points, x1, y1, x2, y2) {
- var p,
- i = -1,
- n = points.length;
-
- // Type conversion for deprecated API.
- if (n && isNaN(points[0].x)) points = points.map(d3_geom_quadtreePoint);
-
- // Allow bounds to be specified explicitly.
- if (arguments.length < 5) {
- if (arguments.length === 3) {
- y2 = x2 = y1;
- y1 = x1;
- } else {
- x1 = y1 = Infinity;
- x2 = y2 = -Infinity;
-
- // Compute bounds.
- while (++i < n) {
- p = points[i];
- if (p.x < x1) x1 = p.x;
- if (p.y < y1) y1 = p.y;
- if (p.x > x2) x2 = p.x;
- if (p.y > y2) y2 = p.y;
- }
-
- // Squarify the bounds.
- var dx = x2 - x1,
- dy = y2 - y1;
- if (dx > dy) y2 = y1 + dx;
- else x2 = x1 + dy;
- }
- }
-
- // Recursively inserts the specified point p at the node n or one of its
- // descendants. The bounds are defined by [x1, x2] and [y1, y2].
- function insert(n, p, x1, y1, x2, y2) {
- if (isNaN(p.x) || isNaN(p.y)) return; // ignore invalid points
- if (n.leaf) {
- var v = n.point;
- if (v) {
- // If the point at this leaf node is at the same position as the new
- // point we are adding, we leave the point associated with the
- // internal node while adding the new point to a child node. This
- // avoids infinite recursion.
- if ((Math.abs(v.x - p.x) + Math.abs(v.y - p.y)) < .01) {
- insertChild(n, p, x1, y1, x2, y2);
- } else {
- n.point = null;
- insertChild(n, v, x1, y1, x2, y2);
- insertChild(n, p, x1, y1, x2, y2);
- }
- } else {
- n.point = p;
- }
- } else {
- insertChild(n, p, x1, y1, x2, y2);
- }
- }
-
- // Recursively inserts the specified point p into a descendant of node n. The
- // bounds are defined by [x1, x2] and [y1, y2].
- function insertChild(n, p, x1, y1, x2, y2) {
- // Compute the split point, and the quadrant in which to insert p.
- var sx = (x1 + x2) * .5,
- sy = (y1 + y2) * .5,
- right = p.x >= sx,
- bottom = p.y >= sy,
- i = (bottom << 1) + right;
-
- // Recursively insert into the child node.
- n.leaf = false;
- n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());
-
- // Update the bounds as we recurse.
- if (right) x1 = sx; else x2 = sx;
- if (bottom) y1 = sy; else y2 = sy;
- insert(n, p, x1, y1, x2, y2);
- }
-
- // Create the root node.
- var root = d3_geom_quadtreeNode();
-
- root.add = function(p) {
- insert(root, p, x1, y1, x2, y2);
- };
-
- root.visit = function(f) {
- d3_geom_quadtreeVisit(f, root, x1, y1, x2, y2);
- };
-
- // Insert all points.
- points.forEach(root.add);
- return root;
-};
-
-function d3_geom_quadtreeNode() {
- return {
- leaf: true,
- nodes: [],
- point: null
- };
-}
-
-function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) {
- if (!f(node, x1, y1, x2, y2)) {
- var sx = (x1 + x2) * .5,
- sy = (y1 + y2) * .5,
- children = node.nodes;
- if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy);
- if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy);
- if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2);
- if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2);
- }
-}
-
-function d3_geom_quadtreePoint(p) {
- return {
- x: p[0],
- y: p[1]
- };
-}
-d3.time = {};
-
-var d3_time = Date;
-
-function d3_time_utc() {
- this._ = new Date(arguments.length > 1
- ? Date.UTC.apply(this, arguments)
- : arguments[0]);
-}
-
-d3_time_utc.prototype = {
- getDate: function() { return this._.getUTCDate(); },
- getDay: function() { return this._.getUTCDay(); },
- getFullYear: function() { return this._.getUTCFullYear(); },
- getHours: function() { return this._.getUTCHours(); },
- getMilliseconds: function() { return this._.getUTCMilliseconds(); },
- getMinutes: function() { return this._.getUTCMinutes(); },
- getMonth: function() { return this._.getUTCMonth(); },
- getSeconds: function() { return this._.getUTCSeconds(); },
- getTime: function() { return this._.getTime(); },
- getTimezoneOffset: function() { return 0; },
- valueOf: function() { return this._.valueOf(); },
- setDate: function() { d3_time_prototype.setUTCDate.apply(this._, arguments); },
- setDay: function() { d3_time_prototype.setUTCDay.apply(this._, arguments); },
- setFullYear: function() { d3_time_prototype.setUTCFullYear.apply(this._, arguments); },
- setHours: function() { d3_time_prototype.setUTCHours.apply(this._, arguments); },
- setMilliseconds: function() { d3_time_prototype.setUTCMilliseconds.apply(this._, arguments); },
- setMinutes: function() { d3_time_prototype.setUTCMinutes.apply(this._, arguments); },
- setMonth: function() { d3_time_prototype.setUTCMonth.apply(this._, arguments); },
- setSeconds: function() { d3_time_prototype.setUTCSeconds.apply(this._, arguments); },
- setTime: function() { d3_time_prototype.setTime.apply(this._, arguments); }
-};
-
-var d3_time_prototype = Date.prototype;
-d3.time.format = function(template) {
- var n = template.length;
-
- function format(date) {
- var string = [],
- i = -1,
- j = 0,
- c,
- f;
- while (++i < n) {
- if (template.charCodeAt(i) == 37) {
- string.push(
- template.substring(j, i),
- (f = d3_time_formats[c = template.charAt(++i)])
- ? f(date) : c);
- j = i + 1;
- }
- }
- string.push(template.substring(j, i));
- return string.join("");
- }
-
- format.parse = function(string) {
- var d = {y: 1900, m: 0, d: 1, H: 0, M: 0, S: 0, L: 0},
- i = d3_time_parse(d, template, string, 0);
- if (i != string.length) return null;
-
- // The am-pm flag is 0 for AM, and 1 for PM.
- if ("p" in d) d.H = d.H % 12 + d.p * 12;
-
- var date = new d3_time();
- date.setFullYear(d.y, d.m, d.d);
- date.setHours(d.H, d.M, d.S, d.L);
- return date;
- };
-
- format.toString = function() {
- return template;
- };
-
- return format;
-};
-
-function d3_time_parse(date, template, string, j) {
- var c,
- p,
- i = 0,
- n = template.length,
- m = string.length;
- while (i < n) {
- if (j >= m) return -1;
- c = template.charCodeAt(i++);
- if (c == 37) {
- p = d3_time_parsers[template.charAt(i++)];
- if (!p || ((j = p(date, string, j)) < 0)) return -1;
- } else if (c != string.charCodeAt(j++)) {
- return -1;
- }
- }
- return j;
-}
-
-var d3_time_zfill2 = d3.format("02d"),
- d3_time_zfill3 = d3.format("03d"),
- d3_time_zfill4 = d3.format("04d"),
- d3_time_sfill2 = d3.format("2d");
-
-var d3_time_formats = {
- a: function(d) { return d3_time_weekdays[d.getDay()].substring(0, 3); },
- A: function(d) { return d3_time_weekdays[d.getDay()]; },
- b: function(d) { return d3_time_months[d.getMonth()].substring(0, 3); },
- B: function(d) { return d3_time_months[d.getMonth()]; },
- c: d3.time.format("%a %b %e %H:%M:%S %Y"),
- d: function(d) { return d3_time_zfill2(d.getDate()); },
- e: function(d) { return d3_time_sfill2(d.getDate()); },
- H: function(d) { return d3_time_zfill2(d.getHours()); },
- I: function(d) { return d3_time_zfill2(d.getHours() % 12 || 12); },
- j: function(d) { return d3_time_zfill3(1 + d3.time.dayOfYear(d)); },
- L: function(d) { return d3_time_zfill3(d.getMilliseconds()); },
- m: function(d) { return d3_time_zfill2(d.getMonth() + 1); },
- M: function(d) { return d3_time_zfill2(d.getMinutes()); },
- p: function(d) { return d.getHours() >= 12 ? "PM" : "AM"; },
- S: function(d) { return d3_time_zfill2(d.getSeconds()); },
- U: function(d) { return d3_time_zfill2(d3.time.sundayOfYear(d)); },
- w: function(d) { return d.getDay(); },
- W: function(d) { return d3_time_zfill2(d3.time.mondayOfYear(d)); },
- x: d3.time.format("%m/%d/%y"),
- X: d3.time.format("%H:%M:%S"),
- y: function(d) { return d3_time_zfill2(d.getFullYear() % 100); },
- Y: function(d) { return d3_time_zfill4(d.getFullYear() % 10000); },
- Z: d3_time_zone,
- "%": function(d) { return "%"; }
-};
-
-var d3_time_parsers = {
- a: d3_time_parseWeekdayAbbrev,
- A: d3_time_parseWeekday,
- b: d3_time_parseMonthAbbrev,
- B: d3_time_parseMonth,
- c: d3_time_parseLocaleFull,
- d: d3_time_parseDay,
- e: d3_time_parseDay,
- H: d3_time_parseHour24,
- I: d3_time_parseHour24,
- // j: function(d, s, i) { /*TODO day of year [001,366] */ return i; },
- L: d3_time_parseMilliseconds,
- m: d3_time_parseMonthNumber,
- M: d3_time_parseMinutes,
- p: d3_time_parseAmPm,
- S: d3_time_parseSeconds,
- // U: function(d, s, i) { /*TODO week number (sunday) [00,53] */ return i; },
- // w: function(d, s, i) { /*TODO weekday [0,6] */ return i; },
- // W: function(d, s, i) { /*TODO week number (monday) [00,53] */ return i; },
- x: d3_time_parseLocaleDate,
- X: d3_time_parseLocaleTime,
- y: d3_time_parseYear,
- Y: d3_time_parseFullYear
- // ,
- // Z: function(d, s, i) { /*TODO time zone */ return i; },
- // "%": function(d, s, i) { /*TODO literal % */ return i; }
-};
-
-// Note: weekday is validated, but does not set the date.
-function d3_time_parseWeekdayAbbrev(date, string, i) {
- return d3_time_weekdayAbbrevRe.test(string.substring(i, i += 3)) ? i : -1;
-}
-
-// Note: weekday is validated, but does not set the date.
-function d3_time_parseWeekday(date, string, i) {
- d3_time_weekdayRe.lastIndex = 0;
- var n = d3_time_weekdayRe.exec(string.substring(i, i + 10));
- return n ? i += n[0].length : -1;
-}
-
-var d3_time_weekdayAbbrevRe = /^(?:sun|mon|tue|wed|thu|fri|sat)/i,
- d3_time_weekdayRe = /^(?:Sunday|Monday|Tuesday|Wednesday|Thursday|Friday|Saturday)/i;
- d3_time_weekdays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
-
-function d3_time_parseMonthAbbrev(date, string, i) {
- var n = d3_time_monthAbbrevLookup.get(string.substring(i, i += 3).toLowerCase());
- return n == null ? -1 : (date.m = n, i);
-}
-
-var d3_time_monthAbbrevLookup = d3.map({
- jan: 0,
- feb: 1,
- mar: 2,
- apr: 3,
- may: 4,
- jun: 5,
- jul: 6,
- aug: 7,
- sep: 8,
- oct: 9,
- nov: 10,
- dec: 11
-});
-
-function d3_time_parseMonth(date, string, i) {
- d3_time_monthRe.lastIndex = 0;
- var n = d3_time_monthRe.exec(string.substring(i, i + 12));
- return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i += n[0].length) : -1;
-}
-
-var d3_time_monthRe = /^(?:January|February|March|April|May|June|July|August|September|October|November|December)/ig;
-
-var d3_time_monthLookup = d3.map({
- january: 0,
- february: 1,
- march: 2,
- april: 3,
- may: 4,
- june: 5,
- july: 6,
- august: 7,
- september: 8,
- october: 9,
- november: 10,
- december: 11
-});
-
-var d3_time_months = [
- "January",
- "February",
- "March",
- "April",
- "May",
- "June",
- "July",
- "August",
- "September",
- "October",
- "November",
- "December"
-];
-
-function d3_time_parseLocaleFull(date, string, i) {
- return d3_time_parse(date, d3_time_formats.c.toString(), string, i);
-}
-
-function d3_time_parseLocaleDate(date, string, i) {
- return d3_time_parse(date, d3_time_formats.x.toString(), string, i);
-}
-
-function d3_time_parseLocaleTime(date, string, i) {
- return d3_time_parse(date, d3_time_formats.X.toString(), string, i);
-}
-
-function d3_time_parseFullYear(date, string, i) {
- d3_time_numberRe.lastIndex = 0;
- var n = d3_time_numberRe.exec(string.substring(i, i + 4));
- return n ? (date.y = +n[0], i += n[0].length) : -1;
-}
-
-function d3_time_parseYear(date, string, i) {
- d3_time_numberRe.lastIndex = 0;
- var n = d3_time_numberRe.exec(string.substring(i, i + 2));
- return n ? (date.y = d3_time_century() + +n[0], i += n[0].length) : -1;
-}
-
-function d3_time_century() {
- return ~~(new Date().getFullYear() / 1000) * 1000;
-}
-
-function d3_time_parseMonthNumber(date, string, i) {
- d3_time_numberRe.lastIndex = 0;
- var n = d3_time_numberRe.exec(string.substring(i, i + 2));
- return n ? (date.m = n[0] - 1, i += n[0].length) : -1;
-}
-
-function d3_time_parseDay(date, string, i) {
- d3_time_numberRe.lastIndex = 0;
- var n = d3_time_numberRe.exec(string.substring(i, i + 2));
- return n ? (date.d = +n[0], i += n[0].length) : -1;
-}
-
-// Note: we don't validate that the hour is in the range [0,23] or [1,12].
-function d3_time_parseHour24(date, string, i) {
- d3_time_numberRe.lastIndex = 0;
- var n = d3_time_numberRe.exec(string.substring(i, i + 2));
- return n ? (date.H = +n[0], i += n[0].length) : -1;
-}
-
-function d3_time_parseMinutes(date, string, i) {
- d3_time_numberRe.lastIndex = 0;
- var n = d3_time_numberRe.exec(string.substring(i, i + 2));
- return n ? (date.M = +n[0], i += n[0].length) : -1;
-}
-
-function d3_time_parseSeconds(date, string, i) {
- d3_time_numberRe.lastIndex = 0;
- var n = d3_time_numberRe.exec(string.substring(i, i + 2));
- return n ? (date.S = +n[0], i += n[0].length) : -1;
-}
-
-function d3_time_parseMilliseconds(date, string, i) {
- d3_time_numberRe.lastIndex = 0;
- var n = d3_time_numberRe.exec(string.substring(i, i + 3));
- return n ? (date.L = +n[0], i += n[0].length) : -1;
-}
-
-// Note: we don't look at the next directive.
-var d3_time_numberRe = /\s*\d+/;
-
-function d3_time_parseAmPm(date, string, i) {
- var n = d3_time_amPmLookup.get(string.substring(i, i += 2).toLowerCase());
- return n == null ? -1 : (date.p = n, i);
-}
-
-var d3_time_amPmLookup = d3.map({
- am: 0,
- pm: 1
-});
-
-// TODO table of time zone offset names?
-function d3_time_zone(d) {
- var z = d.getTimezoneOffset(),
- zs = z > 0 ? "-" : "+",
- zh = ~~(Math.abs(z) / 60),
- zm = Math.abs(z) % 60;
- return zs + d3_time_zfill2(zh) + d3_time_zfill2(zm);
-}
-d3.time.format.utc = function(template) {
- var local = d3.time.format(template);
-
- function format(date) {
- try {
- d3_time = d3_time_utc;
- var utc = new d3_time();
- utc._ = date;
- return local(utc);
- } finally {
- d3_time = Date;
- }
- }
-
- format.parse = function(string) {
- try {
- d3_time = d3_time_utc;
- var date = local.parse(string);
- return date && date._;
- } finally {
- d3_time = Date;
- }
- };
-
- format.toString = local.toString;
-
- return format;
-};
-var d3_time_formatIso = d3.time.format.utc("%Y-%m-%dT%H:%M:%S.%LZ");
-
-d3.time.format.iso = Date.prototype.toISOString ? d3_time_formatIsoNative : d3_time_formatIso;
-
-function d3_time_formatIsoNative(date) {
- return date.toISOString();
-}
-
-d3_time_formatIsoNative.parse = function(string) {
- return new Date(string);
-};
-
-d3_time_formatIsoNative.toString = d3_time_formatIso.toString;
-function d3_time_interval(local, step, number) {
-
- function round(date) {
- var d0 = local(date), d1 = offset(d0, 1);
- return date - d0 < d1 - date ? d0 : d1;
- }
-
- function ceil(date) {
- step(date = local(new d3_time(date - 1)), 1);
- return date;
- }
-
- function offset(date, k) {
- step(date = new d3_time(+date), k);
- return date;
- }
-
- function range(t0, t1, dt) {
- var time = ceil(t0), times = [];
- if (dt > 1) {
- while (time < t1) {
- if (!(number(time) % dt)) times.push(new Date(+time));
- step(time, 1);
- }
- } else {
- while (time < t1) times.push(new Date(+time)), step(time, 1);
- }
- return times;
- }
-
- function range_utc(t0, t1, dt) {
- try {
- d3_time = d3_time_utc;
- var utc = new d3_time_utc();
- utc._ = t0;
- return range(utc, t1, dt);
- } finally {
- d3_time = Date;
- }
- }
-
- local.floor = local;
- local.round = round;
- local.ceil = ceil;
- local.offset = offset;
- local.range = range;
-
- var utc = local.utc = d3_time_interval_utc(local);
- utc.floor = utc;
- utc.round = d3_time_interval_utc(round);
- utc.ceil = d3_time_interval_utc(ceil);
- utc.offset = d3_time_interval_utc(offset);
- utc.range = range_utc;
-
- return local;
-}
-
-function d3_time_interval_utc(method) {
- return function(date, k) {
- try {
- d3_time = d3_time_utc;
- var utc = new d3_time_utc();
- utc._ = date;
- return method(utc, k)._;
- } finally {
- d3_time = Date;
- }
- };
-}
-d3.time.second = d3_time_interval(function(date) {
- return new d3_time(Math.floor(date / 1e3) * 1e3);
-}, function(date, offset) {
- date.setTime(date.getTime() + Math.floor(offset) * 1e3); // DST breaks setSeconds
-}, function(date) {
- return date.getSeconds();
-});
-
-d3.time.seconds = d3.time.second.range;
-d3.time.seconds.utc = d3.time.second.utc.range;
-d3.time.minute = d3_time_interval(function(date) {
- return new d3_time(Math.floor(date / 6e4) * 6e4);
-}, function(date, offset) {
- date.setTime(date.getTime() + Math.floor(offset) * 6e4); // DST breaks setMinutes
-}, function(date) {
- return date.getMinutes();
-});
-
-d3.time.minutes = d3.time.minute.range;
-d3.time.minutes.utc = d3.time.minute.utc.range;
-d3.time.hour = d3_time_interval(function(date) {
- var timezone = date.getTimezoneOffset() / 60;
- return new d3_time((Math.floor(date / 36e5 - timezone) + timezone) * 36e5);
-}, function(date, offset) {
- date.setTime(date.getTime() + Math.floor(offset) * 36e5); // DST breaks setHours
-}, function(date) {
- return date.getHours();
-});
-
-d3.time.hours = d3.time.hour.range;
-d3.time.hours.utc = d3.time.hour.utc.range;
-d3.time.day = d3_time_interval(function(date) {
- return new d3_time(date.getFullYear(), date.getMonth(), date.getDate());
-}, function(date, offset) {
- date.setDate(date.getDate() + offset);
-}, function(date) {
- return date.getDate() - 1;
-});
-
-d3.time.days = d3.time.day.range;
-d3.time.days.utc = d3.time.day.utc.range;
-
-d3.time.dayOfYear = function(date) {
- var year = d3.time.year(date);
- return Math.floor((date - year) / 864e5 - (date.getTimezoneOffset() - year.getTimezoneOffset()) / 1440);
-};
-d3_time_weekdays.forEach(function(day, i) {
- day = day.toLowerCase();
- i = 7 - i;
-
- var interval = d3.time[day] = d3_time_interval(function(date) {
- (date = d3.time.day(date)).setDate(date.getDate() - (date.getDay() + i) % 7);
- return date;
- }, function(date, offset) {
- date.setDate(date.getDate() + Math.floor(offset) * 7);
- }, function(date) {
- var day = d3.time.year(date).getDay();
- return Math.floor((d3.time.dayOfYear(date) + (day + i) % 7) / 7) - (day !== i);
- });
-
- d3.time[day + "s"] = interval.range;
- d3.time[day + "s"].utc = interval.utc.range;
-
- d3.time[day + "OfYear"] = function(date) {
- var day = d3.time.year(date).getDay();
- return Math.floor((d3.time.dayOfYear(date) + (day + i) % 7) / 7);
- };
-});
-
-d3.time.week = d3.time.sunday;
-d3.time.weeks = d3.time.sunday.range;
-d3.time.weeks.utc = d3.time.sunday.utc.range;
-d3.time.weekOfYear = d3.time.sundayOfYear;
-d3.time.month = d3_time_interval(function(date) {
- return new d3_time(date.getFullYear(), date.getMonth(), 1);
-}, function(date, offset) {
- date.setMonth(date.getMonth() + offset);
-}, function(date) {
- return date.getMonth();
-});
-
-d3.time.months = d3.time.month.range;
-d3.time.months.utc = d3.time.month.utc.range;
-d3.time.year = d3_time_interval(function(date) {
- return new d3_time(date.getFullYear(), 0, 1);
-}, function(date, offset) {
- date.setFullYear(date.getFullYear() + offset);
-}, function(date) {
- return date.getFullYear();
-});
-
-d3.time.years = d3.time.year.range;
-d3.time.years.utc = d3.time.year.utc.range;
-function d3_time_scale(linear, methods, format) {
-
- function scale(x) {
- return linear(x);
- }
-
- scale.invert = function(x) {
- return d3_time_scaleDate(linear.invert(x));
- };
-
- scale.domain = function(x) {
- if (!arguments.length) return linear.domain().map(d3_time_scaleDate);
- linear.domain(x);
- return scale;
- };
-
- scale.nice = function(m) {
- var extent = d3_time_scaleExtent(scale.domain());
- return scale.domain([m.floor(extent[0]), m.ceil(extent[1])]);
- };
-
- scale.ticks = function(m, k) {
- var extent = d3_time_scaleExtent(scale.domain());
- if (typeof m !== "function") {
- var span = extent[1] - extent[0],
- target = span / m,
- i = d3.bisect(d3_time_scaleSteps, target);
- if (i == d3_time_scaleSteps.length) return methods.year(extent, m);
- if (!i) return linear.ticks(m).map(d3_time_scaleDate);
- if (Math.log(target / d3_time_scaleSteps[i - 1]) < Math.log(d3_time_scaleSteps[i] / target)) --i;
- m = methods[i];
- k = m[1];
- m = m[0].range;
- }
- return m(extent[0], new Date(+extent[1] + 1), k); // inclusive upper bound
- };
-
- scale.tickFormat = function() {
- return format;
- };
-
- scale.copy = function() {
- return d3_time_scale(linear.copy(), methods, format);
- };
-
- // TOOD expose d3_scale_linear_rebind?
- return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
-}
-
-// TODO expose d3_scaleExtent?
-function d3_time_scaleExtent(domain) {
- var start = domain[0], stop = domain[domain.length - 1];
- return start < stop ? [start, stop] : [stop, start];
-}
-
-function d3_time_scaleDate(t) {
- return new Date(t);
-}
-
-function d3_time_scaleFormat(formats) {
- return function(date) {
- var i = formats.length - 1, f = formats[i];
- while (!f[1](date)) f = formats[--i];
- return f[0](date);
- };
-}
-
-function d3_time_scaleSetYear(y) {
- var d = new Date(y, 0, 1);
- d.setFullYear(y); // Y2K fail
- return d;
-}
-
-function d3_time_scaleGetYear(d) {
- var y = d.getFullYear(),
- d0 = d3_time_scaleSetYear(y),
- d1 = d3_time_scaleSetYear(y + 1);
- return y + (d - d0) / (d1 - d0);
-}
-
-var d3_time_scaleSteps = [
- 1e3, // 1-second
- 5e3, // 5-second
- 15e3, // 15-second
- 3e4, // 30-second
- 6e4, // 1-minute
- 3e5, // 5-minute
- 9e5, // 15-minute
- 18e5, // 30-minute
- 36e5, // 1-hour
- 108e5, // 3-hour
- 216e5, // 6-hour
- 432e5, // 12-hour
- 864e5, // 1-day
- 1728e5, // 2-day
- 6048e5, // 1-week
- 2592e6, // 1-month
- 7776e6, // 3-month
- 31536e6 // 1-year
-];
-
-var d3_time_scaleLocalMethods = [
- [d3.time.second, 1],
- [d3.time.second, 5],
- [d3.time.second, 15],
- [d3.time.second, 30],
- [d3.time.minute, 1],
- [d3.time.minute, 5],
- [d3.time.minute, 15],
- [d3.time.minute, 30],
- [d3.time.hour, 1],
- [d3.time.hour, 3],
- [d3.time.hour, 6],
- [d3.time.hour, 12],
- [d3.time.day, 1],
- [d3.time.day, 2],
- [d3.time.week, 1],
- [d3.time.month, 1],
- [d3.time.month, 3],
- [d3.time.year, 1]
-];
-
-var d3_time_scaleLocalFormats = [
- [d3.time.format("%Y"), function(d) { return true; }],
- [d3.time.format("%B"), function(d) { return d.getMonth(); }],
- [d3.time.format("%b %d"), function(d) { return d.getDate() != 1; }],
- [d3.time.format("%a %d"), function(d) { return d.getDay() && d.getDate() != 1; }],
- [d3.time.format("%I %p"), function(d) { return d.getHours(); }],
- [d3.time.format("%I:%M"), function(d) { return d.getMinutes(); }],
- [d3.time.format(":%S"), function(d) { return d.getSeconds(); }],
- [d3.time.format(".%L"), function(d) { return d.getMilliseconds(); }]
-];
-
-var d3_time_scaleLinear = d3.scale.linear(),
- d3_time_scaleLocalFormat = d3_time_scaleFormat(d3_time_scaleLocalFormats);
-
-d3_time_scaleLocalMethods.year = function(extent, m) {
- return d3_time_scaleLinear.domain(extent.map(d3_time_scaleGetYear)).ticks(m).map(d3_time_scaleSetYear);
-};
-
-d3.time.scale = function() {
- return d3_time_scale(d3.scale.linear(), d3_time_scaleLocalMethods, d3_time_scaleLocalFormat);
-};
-var d3_time_scaleUTCMethods = d3_time_scaleLocalMethods.map(function(m) {
- return [m[0].utc, m[1]];
-});
-
-var d3_time_scaleUTCFormats = [
- [d3.time.format.utc("%Y"), function(d) { return true; }],
- [d3.time.format.utc("%B"), function(d) { return d.getUTCMonth(); }],
- [d3.time.format.utc("%b %d"), function(d) { return d.getUTCDate() != 1; }],
- [d3.time.format.utc("%a %d"), function(d) { return d.getUTCDay() && d.getUTCDate() != 1; }],
- [d3.time.format.utc("%I %p"), function(d) { return d.getUTCHours(); }],
- [d3.time.format.utc("%I:%M"), function(d) { return d.getUTCMinutes(); }],
- [d3.time.format.utc(":%S"), function(d) { return d.getUTCSeconds(); }],
- [d3.time.format.utc(".%L"), function(d) { return d.getUTCMilliseconds(); }]
-];
-
-var d3_time_scaleUTCFormat = d3_time_scaleFormat(d3_time_scaleUTCFormats);
-
-function d3_time_scaleUTCSetYear(y) {
- var d = new Date(Date.UTC(y, 0, 1));
- d.setUTCFullYear(y); // Y2K fail
- return d;
-}
-
-function d3_time_scaleUTCGetYear(d) {
- var y = d.getUTCFullYear(),
- d0 = d3_time_scaleUTCSetYear(y),
- d1 = d3_time_scaleUTCSetYear(y + 1);
- return y + (d - d0) / (d1 - d0);
-}
-
-d3_time_scaleUTCMethods.year = function(extent, m) {
- return d3_time_scaleLinear.domain(extent.map(d3_time_scaleUTCGetYear)).ticks(m).map(d3_time_scaleUTCSetYear);
-};
-
-d3.time.scale.utc = function() {
- return d3_time_scale(d3.scale.linear(), d3_time_scaleUTCMethods, d3_time_scaleUTCFormat);
-};
-})();
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-15 19:17:28 +0000