9415 lines
250 KiB
JavaScript
9415 lines
250 KiB
JavaScript
/*
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Copyright (c) 2012, Michael Bostock
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* The name Michael Bostock may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL MICHAEL BOSTOCK BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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(function(){if (!Date.now) Date.now = function() {
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return +new Date;
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};
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try {
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document.createElement("div").style.setProperty("opacity", 0, "");
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} catch (error) {
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var d3_style_prototype = CSSStyleDeclaration.prototype,
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d3_style_setProperty = d3_style_prototype.setProperty;
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d3_style_prototype.setProperty = function(name, value, priority) {
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d3_style_setProperty.call(this, name, value + "", priority);
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};
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}
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d3 = {version: "2.9.2"}; // semver
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function d3_class(ctor, properties) {
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try {
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for (var key in properties) {
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Object.defineProperty(ctor.prototype, key, {
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value: properties[key],
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enumerable: false
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});
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}
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} catch (e) {
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ctor.prototype = properties;
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}
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}
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var d3_array = d3_arraySlice; // conversion for NodeLists
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function d3_arrayCopy(pseudoarray) {
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var i = -1, n = pseudoarray.length, array = [];
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while (++i < n) array.push(pseudoarray[i]);
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return array;
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}
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function d3_arraySlice(pseudoarray) {
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return Array.prototype.slice.call(pseudoarray);
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}
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try {
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d3_array(document.documentElement.childNodes)[0].nodeType;
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} catch(e) {
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d3_array = d3_arrayCopy;
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}
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var d3_arraySubclass = [].__proto__?
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// Until ECMAScript supports array subclassing, prototype injection works well.
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function(array, prototype) {
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array.__proto__ = prototype;
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}:
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// And if your browser doesn't support __proto__, we'll use direct extension.
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function(array, prototype) {
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for (var property in prototype) array[property] = prototype[property];
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};
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d3.map = function(object) {
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var map = new d3_Map;
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for (var key in object) map.set(key, object[key]);
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return map;
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};
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function d3_Map() {}
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d3_class(d3_Map, {
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has: function(key) {
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return d3_map_prefix + key in this;
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},
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get: function(key) {
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return this[d3_map_prefix + key];
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},
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set: function(key, value) {
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return this[d3_map_prefix + key] = value;
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},
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remove: function(key) {
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key = d3_map_prefix + key;
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return key in this && delete this[key];
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},
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keys: function() {
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var keys = [];
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this.forEach(function(key) { keys.push(key); });
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return keys;
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},
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values: function() {
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var values = [];
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this.forEach(function(key, value) { values.push(value); });
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return values;
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},
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entries: function() {
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var entries = [];
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this.forEach(function(key, value) { entries.push({key: key, value: value}); });
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return entries;
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},
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forEach: function(f) {
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for (var key in this) {
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if (key.charCodeAt(0) === d3_map_prefixCode) {
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f.call(this, key.substring(1), this[key]);
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}
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}
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}
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});
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var d3_map_prefix = "\0", // prevent collision with built-ins
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d3_map_prefixCode = d3_map_prefix.charCodeAt(0);
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function d3_identity(d) {
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return d;
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}
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function d3_this() {
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return this;
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}
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function d3_true() {
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return true;
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}
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function d3_functor(v) {
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return typeof v === "function" ? v : function() { return v; };
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}
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d3.functor = d3_functor;
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// Copies a variable number of methods from source to target.
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d3.rebind = function(target, source) {
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var i = 1, n = arguments.length, method;
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while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);
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return target;
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};
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// Method is assumed to be a standard D3 getter-setter:
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// If passed with no arguments, gets the value.
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// If passed with arguments, sets the value and returns the target.
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function d3_rebind(target, source, method) {
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return function() {
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var value = method.apply(source, arguments);
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return arguments.length ? target : value;
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};
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}
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d3.ascending = function(a, b) {
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return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
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};
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d3.descending = function(a, b) {
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return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
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};
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d3.mean = function(array, f) {
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var n = array.length,
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a,
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m = 0,
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i = -1,
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j = 0;
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if (arguments.length === 1) {
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while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j;
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} else {
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while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j;
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}
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return j ? m : undefined;
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};
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d3.median = function(array, f) {
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if (arguments.length > 1) array = array.map(f);
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array = array.filter(d3_number);
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return array.length ? d3.quantile(array.sort(d3.ascending), .5) : undefined;
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};
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d3.min = function(array, f) {
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var i = -1,
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n = array.length,
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a,
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b;
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if (arguments.length === 1) {
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while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
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while (++i < n) if ((b = array[i]) != null && a > b) a = b;
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} else {
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while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
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while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;
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}
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return a;
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};
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d3.max = function(array, f) {
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var i = -1,
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n = array.length,
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a,
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b;
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if (arguments.length === 1) {
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while (++i < n && ((a = array[i]) == null || a != a)) a = undefined;
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while (++i < n) if ((b = array[i]) != null && b > a) a = b;
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} else {
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while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined;
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while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;
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}
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return a;
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};
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d3.extent = function(array, f) {
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var i = -1,
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n = array.length,
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a,
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b,
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c;
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if (arguments.length === 1) {
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while (++i < n && ((a = c = array[i]) == null || a != a)) a = c = undefined;
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while (++i < n) if ((b = array[i]) != null) {
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if (a > b) a = b;
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if (c < b) c = b;
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}
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} else {
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while (++i < n && ((a = c = f.call(array, array[i], i)) == null || a != a)) a = undefined;
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while (++i < n) if ((b = f.call(array, array[i], i)) != null) {
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if (a > b) a = b;
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if (c < b) c = b;
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}
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}
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return [a, c];
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};
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d3.random = {
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normal: function(mean, deviation) {
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if (arguments.length < 2) deviation = 1;
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if (arguments.length < 1) mean = 0;
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return function() {
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var x, y, r;
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do {
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x = Math.random() * 2 - 1;
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y = Math.random() * 2 - 1;
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r = x * x + y * y;
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} while (!r || r > 1);
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return mean + deviation * x * Math.sqrt(-2 * Math.log(r) / r);
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};
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}
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};
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function d3_number(x) {
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return x != null && !isNaN(x);
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}
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d3.sum = function(array, f) {
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var s = 0,
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n = array.length,
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a,
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i = -1;
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if (arguments.length === 1) {
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while (++i < n) if (!isNaN(a = +array[i])) s += a;
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} else {
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while (++i < n) if (!isNaN(a = +f.call(array, array[i], i))) s += a;
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}
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return s;
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};
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// R-7 per <http://en.wikipedia.org/wiki/Quantile>
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d3.quantile = function(values, p) {
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var H = (values.length - 1) * p + 1,
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h = Math.floor(H),
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v = values[h - 1],
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e = H - h;
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return e ? v + e * (values[h] - v) : v;
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};
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d3.transpose = function(matrix) {
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return d3.zip.apply(d3, matrix);
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};
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d3.zip = function() {
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if (!(n = arguments.length)) return [];
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for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m;) {
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for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n;) {
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zip[j] = arguments[j][i];
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}
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}
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return zips;
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};
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function d3_zipLength(d) {
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return d.length;
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}
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d3.bisector = function(f) {
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return {
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left: function(a, x, lo, hi) {
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if (arguments.length < 3) lo = 0;
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if (arguments.length < 4) hi = a.length;
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while (lo < hi) {
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var mid = lo + hi >> 1;
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if (f.call(a, a[mid], mid) < x) lo = mid + 1;
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else hi = mid;
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}
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return lo;
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},
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right: function(a, x, lo, hi) {
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if (arguments.length < 3) lo = 0;
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if (arguments.length < 4) hi = a.length;
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while (lo < hi) {
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var mid = lo + hi >> 1;
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if (x < f.call(a, a[mid], mid)) hi = mid;
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else lo = mid + 1;
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}
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return lo;
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}
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};
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};
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var d3_bisector = d3.bisector(function(d) { return d; });
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d3.bisectLeft = d3_bisector.left;
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d3.bisect = d3.bisectRight = d3_bisector.right;
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d3.first = function(array, f) {
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var i = 0,
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n = array.length,
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a = array[0],
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b;
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if (arguments.length === 1) f = d3.ascending;
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while (++i < n) {
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if (f.call(array, a, b = array[i]) > 0) {
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a = b;
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}
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}
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return a;
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};
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d3.last = function(array, f) {
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var i = 0,
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n = array.length,
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a = array[0],
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b;
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if (arguments.length === 1) f = d3.ascending;
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while (++i < n) {
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if (f.call(array, a, b = array[i]) <= 0) {
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a = b;
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}
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}
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return a;
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};
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d3.nest = function() {
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var nest = {},
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keys = [],
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sortKeys = [],
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sortValues,
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rollup;
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function map(array, depth) {
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if (depth >= keys.length) return rollup
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? rollup.call(nest, array) : (sortValues
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? array.sort(sortValues)
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: array);
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var i = -1,
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n = array.length,
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key = keys[depth++],
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keyValue,
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object,
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valuesByKey = new d3_Map,
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values,
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o = {};
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while (++i < n) {
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if (values = valuesByKey.get(keyValue = key(object = array[i]))) {
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values.push(object);
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} else {
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valuesByKey.set(keyValue, [object]);
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}
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}
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valuesByKey.forEach(function(keyValue) {
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o[keyValue] = map(valuesByKey.get(keyValue), depth);
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});
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return o;
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}
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function entries(map, depth) {
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if (depth >= keys.length) return map;
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var a = [],
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sortKey = sortKeys[depth++],
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key;
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for (key in map) {
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a.push({key: key, values: entries(map[key], depth)});
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}
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if (sortKey) a.sort(function(a, b) {
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return sortKey(a.key, b.key);
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});
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return a;
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}
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nest.map = function(array) {
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return map(array, 0);
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};
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nest.entries = function(array) {
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return entries(map(array, 0), 0);
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};
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nest.key = function(d) {
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keys.push(d);
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return nest;
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};
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// Specifies the order for the most-recently specified key.
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// Note: only applies to entries. Map keys are unordered!
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nest.sortKeys = function(order) {
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sortKeys[keys.length - 1] = order;
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return nest;
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};
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// Specifies the order for leaf values.
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// Applies to both maps and entries array.
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nest.sortValues = function(order) {
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sortValues = order;
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return nest;
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};
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nest.rollup = function(f) {
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rollup = f;
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return nest;
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};
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return nest;
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};
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d3.keys = function(map) {
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var keys = [];
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for (var key in map) keys.push(key);
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return keys;
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};
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d3.values = function(map) {
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var values = [];
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for (var key in map) values.push(map[key]);
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return values;
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};
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d3.entries = function(map) {
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var entries = [];
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for (var key in map) entries.push({key: key, value: map[key]});
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return entries;
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};
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d3.permute = function(array, indexes) {
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var permutes = [],
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i = -1,
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n = indexes.length;
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while (++i < n) permutes[i] = array[indexes[i]];
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return permutes;
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};
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d3.merge = function(arrays) {
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return Array.prototype.concat.apply([], arrays);
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};
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d3.split = function(array, f) {
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var arrays = [],
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values = [],
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value,
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i = -1,
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n = array.length;
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if (arguments.length < 2) f = d3_splitter;
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while (++i < n) {
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if (f.call(values, value = array[i], i)) {
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values = [];
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} else {
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if (!values.length) arrays.push(values);
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values.push(value);
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}
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}
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return arrays;
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};
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function d3_splitter(d) {
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return d == null;
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}
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function d3_collapse(s) {
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return s.replace(/(^\s+)|(\s+$)/g, "").replace(/\s+/g, " ");
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}
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d3.range = function(start, stop, step) {
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if (arguments.length < 3) {
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step = 1;
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if (arguments.length < 2) {
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stop = start;
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start = 0;
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}
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}
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if ((stop - start) / step === Infinity) throw new Error("infinite range");
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var range = [],
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k = d3_range_integerScale(Math.abs(step)),
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i = -1,
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j;
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start *= k, stop *= k, step *= k;
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if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k);
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else while ((j = start + step * ++i) < stop) range.push(j / k);
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return range;
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};
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function d3_range_integerScale(x) {
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var k = 1;
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while (x * k % 1) k *= 10;
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return k;
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}
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d3.requote = function(s) {
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return s.replace(d3_requote_re, "\\$&");
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};
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var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
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d3.round = function(x, n) {
|
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return n
|
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? Math.round(x * (n = Math.pow(10, n))) / n
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: Math.round(x);
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};
|
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d3.xhr = function(url, mime, callback) {
|
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var req = new XMLHttpRequest;
|
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if (arguments.length < 3) callback = mime, mime = null;
|
|
else if (mime && req.overrideMimeType) req.overrideMimeType(mime);
|
|
req.open("GET", url, true);
|
|
if (mime) req.setRequestHeader("Accept", mime);
|
|
req.onreadystatechange = function() {
|
|
if (req.readyState === 4) {
|
|
var s = req.status;
|
|
callback(s >= 200 && s < 300 || s === 304 ? req : null);
|
|
}
|
|
};
|
|
req.send(null);
|
|
};
|
|
d3.text = function(url, mime, callback) {
|
|
function ready(req) {
|
|
callback(req && req.responseText);
|
|
}
|
|
if (arguments.length < 3) {
|
|
callback = mime;
|
|
mime = null;
|
|
}
|
|
d3.xhr(url, mime, ready);
|
|
};
|
|
d3.json = function(url, callback) {
|
|
d3.text(url, "application/json", function(text) {
|
|
callback(text ? JSON.parse(text) : null);
|
|
});
|
|
};
|
|
d3.html = function(url, callback) {
|
|
d3.text(url, "text/html", function(text) {
|
|
if (text != null) { // 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(value);
|
|
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) {
|
|
var k = Math.pow(10, Math.abs(8 - i) * 3);
|
|
return {
|
|
scale: i > 8 ? function(d) { return d / k; } : function(d) { return d * k; },
|
|
symbol: d
|
|
};
|
|
}
|
|
/*
|
|
* 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*|\.?\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 (value = value.call(node, d, i)) {
|
|
tweened.push(value);
|
|
}
|
|
});
|
|
|
|
event.start.call(node, d, i);
|
|
if (!tick(elapsed)) d3.timer(tick, 0, time);
|
|
return 1;
|
|
}
|
|
|
|
function tick(elapsed) {
|
|
if (lock.active !== id) return stop();
|
|
|
|
var t = (elapsed - delay) / duration,
|
|
e = ease(t),
|
|
n = tweened.length;
|
|
|
|
while (n > 0) {
|
|
tweened[--n].call(node, e);
|
|
}
|
|
|
|
if (t >= 1) {
|
|
stop();
|
|
d3_transitionId = id;
|
|
event.end.call(node, d, i);
|
|
d3_transitionId = 0;
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
function stop() {
|
|
if (!--lock.count) delete node.__transition__;
|
|
return 1;
|
|
}
|
|
});
|
|
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,
|
|
defined = d3_true,
|
|
interpolate = d3_svg_lineInterpolatorDefault,
|
|
interpolator = d3_svg_lineLinear,
|
|
tension = .7;
|
|
|
|
function line(data) {
|
|
var segments = [],
|
|
points = [],
|
|
i = -1,
|
|
n = data.length,
|
|
d,
|
|
fx = d3_functor(x),
|
|
fy = d3_functor(y);
|
|
|
|
function segment() {
|
|
segments.push("M", interpolator(projection(points), tension));
|
|
}
|
|
|
|
while (++i < n) {
|
|
if (defined.call(this, d = data[i], i)) {
|
|
points.push([+fx.call(this, d, i), +fy.call(this, d, i)]);
|
|
} else if (points.length) {
|
|
segment();
|
|
points = [];
|
|
}
|
|
}
|
|
|
|
if (points.length) segment();
|
|
|
|
return segments.length ? segments.join("") : null;
|
|
}
|
|
|
|
line.x = function(_) {
|
|
if (!arguments.length) return x;
|
|
x = _;
|
|
return line;
|
|
};
|
|
|
|
line.y = function(_) {
|
|
if (!arguments.length) return y;
|
|
y = _;
|
|
return line;
|
|
};
|
|
|
|
line.defined = function(_) {
|
|
if (!arguments.length) return defined;
|
|
defined = _;
|
|
return line;
|
|
};
|
|
|
|
line.interpolate = function(_) {
|
|
if (!arguments.length) return interpolate;
|
|
if (!d3_svg_lineInterpolators.has(_ += "")) _ = d3_svg_lineInterpolatorDefault;
|
|
interpolator = d3_svg_lineInterpolators.get(interpolate = _);
|
|
return line;
|
|
};
|
|
|
|
line.tension = function(_) {
|
|
if (!arguments.length) return tension;
|
|
tension = _;
|
|
return line;
|
|
};
|
|
|
|
return line;
|
|
}
|
|
|
|
d3.svg.line = function() {
|
|
return d3_svg_line(d3_identity);
|
|
};
|
|
|
|
// 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,
|
|
defined = d3_true,
|
|
interpolate = d3_svg_lineInterpolatorDefault,
|
|
i0 = d3_svg_lineLinear,
|
|
i1 = d3_svg_lineLinear,
|
|
L = "L",
|
|
tension = .7;
|
|
|
|
function area(data) {
|
|
var segments = [],
|
|
points0 = [],
|
|
points1 = [],
|
|
i = -1,
|
|
n = data.length,
|
|
d,
|
|
fx0 = d3_functor(x0),
|
|
fy0 = d3_functor(y0),
|
|
fx1 = x0 === x1 ? function() { return x; } : d3_functor(x1),
|
|
fy1 = y0 === y1 ? function() { return y; } : d3_functor(y1),
|
|
x,
|
|
y;
|
|
|
|
function segment() {
|
|
segments.push("M", i0(projection(points1), tension),
|
|
L, i1(projection(points0.reverse()), tension),
|
|
"Z");
|
|
}
|
|
|
|
while (++i < n) {
|
|
if (defined.call(this, d = data[i], i)) {
|
|
points0.push([x = +fx0.call(this, d, i), y = +fy0.call(this, d, i)]);
|
|
points1.push([+fx1.call(this, d, i), +fy1.call(this, d, i)]);
|
|
} else if (points0.length) {
|
|
segment();
|
|
points0 = [];
|
|
points1 = [];
|
|
}
|
|
}
|
|
|
|
if (points0.length) segment();
|
|
|
|
return segments.length ? segments.join("") : null;
|
|
}
|
|
|
|
area.x = function(_) {
|
|
if (!arguments.length) return x1;
|
|
x0 = x1 = _;
|
|
return area;
|
|
};
|
|
|
|
area.x0 = function(_) {
|
|
if (!arguments.length) return x0;
|
|
x0 = _;
|
|
return area;
|
|
};
|
|
|
|
area.x1 = function(_) {
|
|
if (!arguments.length) return x1;
|
|
x1 = _;
|
|
return area;
|
|
};
|
|
|
|
area.y = function(_) {
|
|
if (!arguments.length) return y1;
|
|
y0 = y1 = _;
|
|
return area;
|
|
};
|
|
|
|
area.y0 = function(_) {
|
|
if (!arguments.length) return y0;
|
|
y0 = _;
|
|
return area;
|
|
};
|
|
|
|
area.y1 = function(_) {
|
|
if (!arguments.length) return y1;
|
|
y1 = _;
|
|
return area;
|
|
};
|
|
|
|
area.defined = function(_) {
|
|
if (!arguments.length) return defined;
|
|
defined = _;
|
|
return area;
|
|
};
|
|
|
|
area.interpolate = function(_) {
|
|
if (!arguments.length) return interpolate;
|
|
if (!d3_svg_lineInterpolators.has(_ += "")) _ = d3_svg_lineInterpolatorDefault;
|
|
i0 = d3_svg_lineInterpolators.get(interpolate = _);
|
|
i1 = i0.reverse || i0;
|
|
L = /-closed$/.test(_) ? "M" : "L";
|
|
return area;
|
|
};
|
|
|
|
area.tension = function(_) {
|
|
if (!arguments.length) return tension;
|
|
tension = _;
|
|
return area;
|
|
};
|
|
|
|
return area;
|
|
}
|
|
|
|
d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;
|
|
d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;
|
|
|
|
d3.svg.area = function() {
|
|
return d3_svg_area(Object);
|
|
};
|
|
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];
|
|
}
|
|
|
|
d3_eventCancel();
|
|
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, true);
|
|
}
|
|
|
|
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[di] = {
|
|
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(d3_identity)
|
|
.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) {
|
|
var d;
|
|
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 = d3_identity,
|
|
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.
|
|
if (m > 0) {
|
|
i = -1; while(++i < n) {
|
|
x = values[i];
|
|
if ((x >= range[0]) && (x <= range[1])) {
|
|
bin = bins[d3.bisect(thresholds, x, 1, m) - 1];
|
|
bin.y += k;
|
|
bin.push(data[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
return bins;
|
|
}
|
|
|
|
// 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,
|
|
d;
|
|
while (++i < n) {
|
|
d = recurse(childs[i], j, nodes);
|
|
d.parent = node;
|
|
c.push(d);
|
|
v += d.value;
|
|
}
|
|
if (sort) c.sort(sort);
|
|
if (value) node.value = v;
|
|
} else if (value) {
|
|
node.value = +value.call(hierarchy, data, depth) || 0;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
// 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(d3_identity);
|
|
|
|
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(d3_identity);
|
|
return features && (o = Object.create(o), o.features = features, o);
|
|
},
|
|
|
|
Feature: function(o) {
|
|
var geometry = clipType(o.geometry);
|
|
return geometry && (o = Object.create(o), o.geometry = geometry, o);
|
|
},
|
|
|
|
Point: function(o) {
|
|
return visible(o.coordinates) && o;
|
|
},
|
|
|
|
MultiPoint: function(o) {
|
|
var coordinates = o.coordinates.filter(visible);
|
|
return coordinates.length && {
|
|
type: o.type,
|
|
coordinates: coordinates
|
|
};
|
|
},
|
|
|
|
LineString: function(o) {
|
|
var coordinates = clip(o.coordinates);
|
|
return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
|
|
},
|
|
|
|
MultiLineString: function(o) {
|
|
var coordinates = o.coordinates.map(clip).filter(function(d) { return d.length; });
|
|
return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
|
|
},
|
|
|
|
Polygon: function(o) {
|
|
var coordinates = o.coordinates.map(clip);
|
|
return coordinates[0].length && (o = Object.create(o), o.coordinates = coordinates, o);
|
|
},
|
|
|
|
MultiPolygon: function(o) {
|
|
var coordinates = o.coordinates.map(function(d) { return d.map(clip); }).filter(function(d) { return d[0].length; });
|
|
return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o);
|
|
},
|
|
|
|
GeometryCollection: function(o) {
|
|
var geometries = o.geometries.map(clipType).filter(d3_identity);
|
|
return geometries.length && (o = Object.create(o), o.geometries = geometries, o);
|
|
}
|
|
|
|
});
|
|
|
|
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);
|
|
};
|
|
})();
|