[7588] | 1 | (function(){if (!Date.now) Date.now = function() { |
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| 2 | return +new Date; |
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| 3 | }; |
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| 4 | try { |
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| 5 | document.createElement("div").style.setProperty("opacity", 0, ""); |
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| 6 | } catch (error) { |
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| 7 | var d3_style_prototype = CSSStyleDeclaration.prototype, |
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| 8 | d3_style_setProperty = d3_style_prototype.setProperty; |
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| 9 | d3_style_prototype.setProperty = function(name, value, priority) { |
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| 10 | d3_style_setProperty.call(this, name, value + "", priority); |
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| 11 | }; |
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| 12 | } |
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| 13 | d3 = {version: "2.8.1"}; // semver |
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| 14 | function d3_class(ctor, properties) { |
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| 15 | try { |
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| 16 | for (var key in properties) { |
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| 17 | Object.defineProperty(ctor.prototype, key, { |
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| 18 | value: properties[key], |
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| 19 | enumerable: false |
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| 20 | }); |
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| 21 | } |
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| 22 | } catch (e) { |
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| 23 | ctor.prototype = properties; |
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| 24 | } |
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| 25 | } |
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| 26 | var d3_array = d3_arraySlice; // conversion for NodeLists |
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| 27 | |
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| 28 | function d3_arrayCopy(pseudoarray) { |
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| 29 | var i = -1, n = pseudoarray.length, array = []; |
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| 30 | while (++i < n) array.push(pseudoarray[i]); |
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| 31 | return array; |
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| 32 | } |
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| 33 | |
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| 34 | function d3_arraySlice(pseudoarray) { |
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| 35 | return Array.prototype.slice.call(pseudoarray); |
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| 36 | } |
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| 37 | |
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| 38 | try { |
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| 39 | d3_array(document.documentElement.childNodes)[0].nodeType; |
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| 40 | } catch(e) { |
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| 41 | d3_array = d3_arrayCopy; |
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| 42 | } |
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| 43 | |
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| 44 | var d3_arraySubclass = [].__proto__? |
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| 45 | |
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| 46 | // Until ECMAScript supports array subclassing, prototype injection works well. |
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| 47 | function(array, prototype) { |
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| 48 | array.__proto__ = prototype; |
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| 49 | }: |
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| 50 | |
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| 51 | // And if your browser doesn't support __proto__, we'll use direct extension. |
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| 52 | function(array, prototype) { |
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| 53 | for (var property in prototype) array[property] = prototype[property]; |
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| 54 | }; |
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| 55 | d3.map = function(object) { |
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| 56 | var map = new d3_Map; |
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| 57 | for (var key in object) map.set(key, object[key]); |
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| 58 | return map; |
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| 59 | }; |
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| 60 | |
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| 61 | function d3_Map() {} |
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| 62 | |
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| 63 | d3_class(d3_Map, { |
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| 64 | has: function(key) { |
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| 65 | return d3_map_prefix + key in this; |
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| 66 | }, |
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| 67 | get: function(key) { |
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| 68 | return this[d3_map_prefix + key]; |
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| 69 | }, |
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| 70 | set: function(key, value) { |
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| 71 | return this[d3_map_prefix + key] = value; |
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| 72 | }, |
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| 73 | remove: function(key) { |
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| 74 | key = d3_map_prefix + key; |
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| 75 | return key in this && delete this[key]; |
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| 76 | }, |
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| 77 | keys: function() { |
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| 78 | var keys = []; |
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| 79 | this.forEach(function(key) { keys.push(key); }); |
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| 80 | return keys; |
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| 81 | }, |
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| 82 | values: function() { |
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| 83 | var values = []; |
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| 84 | this.forEach(function(key, value) { values.push(value); }); |
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| 85 | return values; |
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| 86 | }, |
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| 87 | entries: function() { |
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| 88 | var entries = []; |
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| 89 | this.forEach(function(key, value) { entries.push({key: key, value: value}); }); |
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| 90 | return entries; |
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| 91 | }, |
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| 92 | forEach: function(f) { |
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| 93 | for (var key in this) { |
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| 94 | if (key.charCodeAt(0) === d3_map_prefixCode) { |
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| 95 | f.call(this, key.substring(1), this[key]); |
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| 96 | } |
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| 97 | } |
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| 98 | } |
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| 99 | }); |
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| 100 | |
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| 101 | var d3_map_prefix = "\0", // prevent collision with built-ins |
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| 102 | d3_map_prefixCode = d3_map_prefix.charCodeAt(0); |
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| 103 | function d3_this() { |
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| 104 | return this; |
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| 105 | } |
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| 106 | d3.functor = function(v) { |
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| 107 | return typeof v === "function" ? v : function() { return v; }; |
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| 108 | }; |
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| 109 | // Copies a variable number of methods from source to target. |
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| 110 | d3.rebind = function(target, source) { |
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| 111 | var i = 1, n = arguments.length, method; |
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| 112 | while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]); |
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| 113 | return target; |
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| 114 | }; |
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| 115 | |
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| 116 | // Method is assumed to be a standard D3 getter-setter: |
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| 117 | // If passed with no arguments, gets the value. |
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| 118 | // If passed with arguments, sets the value and returns the target. |
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| 119 | function d3_rebind(target, source, method) { |
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| 120 | return function() { |
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| 121 | var value = method.apply(source, arguments); |
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| 122 | return arguments.length ? target : value; |
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| 123 | }; |
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| 124 | } |
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| 125 | d3.ascending = function(a, b) { |
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| 126 | return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN; |
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| 127 | }; |
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| 128 | d3.descending = function(a, b) { |
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| 129 | return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN; |
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| 130 | }; |
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| 131 | d3.mean = function(array, f) { |
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| 132 | var n = array.length, |
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| 133 | a, |
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| 134 | m = 0, |
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| 135 | i = -1, |
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| 136 | j = 0; |
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| 137 | if (arguments.length === 1) { |
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| 138 | while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j; |
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| 139 | } else { |
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| 140 | while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j; |
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| 141 | } |
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| 142 | return j ? m : undefined; |
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| 143 | }; |
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| 144 | d3.median = function(array, f) { |
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| 145 | if (arguments.length > 1) array = array.map(f); |
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| 146 | array = array.filter(d3_number); |
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| 147 | return array.length ? d3.quantile(array.sort(d3.ascending), .5) : undefined; |
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| 148 | }; |
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| 149 | d3.min = function(array, f) { |
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| 150 | var i = -1, |
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| 151 | n = array.length, |
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| 152 | a, |
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| 153 | b; |
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| 154 | if (arguments.length === 1) { |
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| 155 | while (++i < n && ((a = array[i]) == null || a != a)) a = undefined; |
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| 156 | while (++i < n) if ((b = array[i]) != null && a > b) a = b; |
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| 157 | } else { |
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| 158 | while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined; |
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| 159 | while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b; |
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| 160 | } |
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| 161 | return a; |
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| 162 | }; |
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| 163 | d3.max = function(array, f) { |
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| 164 | var i = -1, |
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| 165 | n = array.length, |
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| 166 | a, |
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| 167 | b; |
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| 168 | if (arguments.length === 1) { |
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| 169 | while (++i < n && ((a = array[i]) == null || a != a)) a = undefined; |
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| 170 | while (++i < n) if ((b = array[i]) != null && b > a) a = b; |
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| 171 | } else { |
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| 172 | while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined; |
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| 173 | while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b; |
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| 174 | } |
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| 175 | return a; |
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| 176 | }; |
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| 177 | d3.extent = function(array, f) { |
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| 178 | var i = -1, |
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| 179 | n = array.length, |
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| 180 | a, |
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| 181 | b, |
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| 182 | c; |
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| 183 | if (arguments.length === 1) { |
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| 184 | while (++i < n && ((a = c = array[i]) == null || a != a)) a = c = undefined; |
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| 185 | while (++i < n) if ((b = array[i]) != null) { |
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| 186 | if (a > b) a = b; |
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| 187 | if (c < b) c = b; |
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| 188 | } |
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| 189 | } else { |
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| 190 | while (++i < n && ((a = c = f.call(array, array[i], i)) == null || a != a)) a = undefined; |
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| 191 | while (++i < n) if ((b = f.call(array, array[i], i)) != null) { |
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| 192 | if (a > b) a = b; |
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| 193 | if (c < b) c = b; |
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| 194 | } |
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| 195 | } |
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| 196 | return [a, c]; |
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| 197 | }; |
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| 198 | d3.random = { |
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| 199 | normal: function(mean, deviation) { |
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| 200 | if (arguments.length < 2) deviation = 1; |
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| 201 | if (arguments.length < 1) mean = 0; |
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| 202 | return function() { |
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| 203 | var x, y, r; |
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| 204 | do { |
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| 205 | x = Math.random() * 2 - 1; |
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| 206 | y = Math.random() * 2 - 1; |
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| 207 | r = x * x + y * y; |
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| 208 | } while (!r || r > 1); |
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| 209 | return mean + deviation * x * Math.sqrt(-2 * Math.log(r) / r); |
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| 210 | }; |
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| 211 | } |
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| 212 | }; |
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| 213 | function d3_number(x) { |
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| 214 | return x != null && !isNaN(x); |
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| 215 | } |
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| 216 | d3.sum = function(array, f) { |
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| 217 | var s = 0, |
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| 218 | n = array.length, |
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| 219 | a, |
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| 220 | i = -1; |
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| 221 | |
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| 222 | if (arguments.length === 1) { |
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| 223 | while (++i < n) if (!isNaN(a = +array[i])) s += a; |
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| 224 | } else { |
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| 225 | while (++i < n) if (!isNaN(a = +f.call(array, array[i], i))) s += a; |
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| 226 | } |
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| 227 | |
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| 228 | return s; |
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| 229 | }; |
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| 230 | // R-7 per <http://en.wikipedia.org/wiki/Quantile> |
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| 231 | d3.quantile = function(values, p) { |
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| 232 | var H = (values.length - 1) * p + 1, |
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| 233 | h = Math.floor(H), |
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| 234 | v = values[h - 1], |
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| 235 | e = H - h; |
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| 236 | return e ? v + e * (values[h] - v) : v; |
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| 237 | }; |
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| 238 | d3.transpose = function(matrix) { |
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| 239 | return d3.zip.apply(d3, matrix); |
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| 240 | }; |
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| 241 | d3.zip = function() { |
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| 242 | if (!(n = arguments.length)) return []; |
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| 243 | for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m;) { |
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| 244 | for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n;) { |
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| 245 | zip[j] = arguments[j][i]; |
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| 246 | } |
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| 247 | } |
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| 248 | return zips; |
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| 249 | }; |
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| 250 | |
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| 251 | function d3_zipLength(d) { |
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| 252 | return d.length; |
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| 253 | } |
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| 254 | d3.bisector = function(f) { |
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| 255 | return { |
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| 256 | left: function(a, x, lo, hi) { |
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| 257 | if (arguments.length < 3) lo = 0; |
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| 258 | if (arguments.length < 4) hi = a.length; |
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| 259 | while (lo < hi) { |
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| 260 | var mid = lo + hi >> 1; |
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| 261 | if (f.call(a, a[mid], mid) < x) lo = mid + 1; |
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| 262 | else hi = mid; |
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| 263 | } |
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| 264 | return lo; |
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| 265 | }, |
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| 266 | right: function(a, x, lo, hi) { |
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| 267 | if (arguments.length < 3) lo = 0; |
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| 268 | if (arguments.length < 4) hi = a.length; |
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| 269 | while (lo < hi) { |
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| 270 | var mid = lo + hi >> 1; |
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| 271 | if (x < f.call(a, a[mid], mid)) hi = mid; |
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| 272 | else lo = mid + 1; |
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| 273 | } |
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| 274 | return lo; |
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| 275 | } |
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| 276 | }; |
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| 277 | }; |
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| 278 | |
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| 279 | var d3_bisector = d3.bisector(function(d) { return d; }); |
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| 280 | d3.bisectLeft = d3_bisector.left; |
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| 281 | d3.bisect = d3.bisectRight = d3_bisector.right; |
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| 282 | d3.first = function(array, f) { |
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| 283 | var i = 0, |
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| 284 | n = array.length, |
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| 285 | a = array[0], |
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| 286 | b; |
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| 287 | if (arguments.length === 1) f = d3.ascending; |
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| 288 | while (++i < n) { |
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| 289 | if (f.call(array, a, b = array[i]) > 0) { |
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| 290 | a = b; |
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| 291 | } |
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| 292 | } |
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| 293 | return a; |
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| 294 | }; |
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| 295 | d3.last = function(array, f) { |
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| 296 | var i = 0, |
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| 297 | n = array.length, |
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| 298 | a = array[0], |
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| 299 | b; |
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| 300 | if (arguments.length === 1) f = d3.ascending; |
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| 301 | while (++i < n) { |
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| 302 | if (f.call(array, a, b = array[i]) <= 0) { |
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| 303 | a = b; |
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| 304 | } |
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| 305 | } |
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| 306 | return a; |
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| 307 | }; |
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| 308 | d3.nest = function() { |
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| 309 | var nest = {}, |
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| 310 | keys = [], |
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| 311 | sortKeys = [], |
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| 312 | sortValues, |
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| 313 | rollup; |
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| 314 | |
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| 315 | function map(array, depth) { |
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| 316 | if (depth >= keys.length) return rollup |
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| 317 | ? rollup.call(nest, array) : (sortValues |
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| 318 | ? array.sort(sortValues) |
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| 319 | : array); |
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| 320 | |
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| 321 | var i = -1, |
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| 322 | n = array.length, |
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| 323 | key = keys[depth++], |
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| 324 | keyValue, |
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| 325 | object, |
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| 326 | valuesByKey = new d3_Map, |
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| 327 | values, |
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| 328 | o = {}; |
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| 329 | |
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| 330 | while (++i < n) { |
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| 331 | if (values = valuesByKey.get(keyValue = key(object = array[i]))) { |
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| 332 | values.push(object); |
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| 333 | } else { |
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| 334 | valuesByKey.set(keyValue, [object]); |
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| 335 | } |
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| 336 | } |
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| 337 | |
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| 338 | valuesByKey.forEach(function(keyValue) { |
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| 339 | o[keyValue] = map(valuesByKey.get(keyValue), depth); |
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| 340 | }); |
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| 341 | |
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| 342 | return o; |
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| 343 | } |
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| 344 | |
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| 345 | function entries(map, depth) { |
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| 346 | if (depth >= keys.length) return map; |
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| 347 | |
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| 348 | var a = [], |
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| 349 | sortKey = sortKeys[depth++], |
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| 350 | key; |
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| 351 | |
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| 352 | for (key in map) { |
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| 353 | a.push({key: key, values: entries(map[key], depth)}); |
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| 354 | } |
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| 355 | |
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| 356 | if (sortKey) a.sort(function(a, b) { |
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| 357 | return sortKey(a.key, b.key); |
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| 358 | }); |
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| 359 | |
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| 360 | return a; |
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| 361 | } |
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| 362 | |
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| 363 | nest.map = function(array) { |
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| 364 | return map(array, 0); |
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| 365 | }; |
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| 366 | |
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| 367 | nest.entries = function(array) { |
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| 368 | return entries(map(array, 0), 0); |
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| 369 | }; |
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| 370 | |
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| 371 | nest.key = function(d) { |
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| 372 | keys.push(d); |
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| 373 | return nest; |
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| 374 | }; |
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| 375 | |
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| 376 | // Specifies the order for the most-recently specified key. |
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| 377 | // Note: only applies to entries. Map keys are unordered! |
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| 378 | nest.sortKeys = function(order) { |
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| 379 | sortKeys[keys.length - 1] = order; |
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| 380 | return nest; |
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| 381 | }; |
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| 382 | |
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| 383 | // Specifies the order for leaf values. |
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| 384 | // Applies to both maps and entries array. |
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| 385 | nest.sortValues = function(order) { |
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| 386 | sortValues = order; |
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| 387 | return nest; |
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| 388 | }; |
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| 389 | |
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| 390 | nest.rollup = function(f) { |
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| 391 | rollup = f; |
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| 392 | return nest; |
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| 393 | }; |
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| 394 | |
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| 395 | return nest; |
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| 396 | }; |
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| 397 | d3.keys = function(map) { |
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| 398 | var keys = []; |
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| 399 | for (var key in map) keys.push(key); |
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| 400 | return keys; |
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| 401 | }; |
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| 402 | d3.values = function(map) { |
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| 403 | var values = []; |
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| 404 | for (var key in map) values.push(map[key]); |
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| 405 | return values; |
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| 406 | }; |
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| 407 | d3.entries = function(map) { |
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| 408 | var entries = []; |
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| 409 | for (var key in map) entries.push({key: key, value: map[key]}); |
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| 410 | return entries; |
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| 411 | }; |
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| 412 | d3.permute = function(array, indexes) { |
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| 413 | var permutes = [], |
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| 414 | i = -1, |
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| 415 | n = indexes.length; |
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| 416 | while (++i < n) permutes[i] = array[indexes[i]]; |
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| 417 | return permutes; |
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| 418 | }; |
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| 419 | d3.merge = function(arrays) { |
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| 420 | return Array.prototype.concat.apply([], arrays); |
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| 421 | }; |
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| 422 | d3.split = function(array, f) { |
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| 423 | var arrays = [], |
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| 424 | values = [], |
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| 425 | value, |
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| 426 | i = -1, |
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| 427 | n = array.length; |
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| 428 | if (arguments.length < 2) f = d3_splitter; |
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| 429 | while (++i < n) { |
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| 430 | if (f.call(values, value = array[i], i)) { |
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| 431 | values = []; |
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| 432 | } else { |
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| 433 | if (!values.length) arrays.push(values); |
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| 434 | values.push(value); |
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| 435 | } |
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| 436 | } |
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| 437 | return arrays; |
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| 438 | }; |
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| 439 | |
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| 440 | function d3_splitter(d) { |
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| 441 | return d == null; |
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| 442 | } |
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| 443 | function d3_collapse(s) { |
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| 444 | return s.replace(/(^\s+)|(\s+$)/g, "").replace(/\s+/g, " "); |
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| 445 | } |
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| 446 | d3.range = function(start, stop, step) { |
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| 447 | if (arguments.length < 3) { |
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| 448 | step = 1; |
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| 449 | if (arguments.length < 2) { |
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| 450 | stop = start; |
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| 451 | start = 0; |
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| 452 | } |
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| 453 | } |
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| 454 | if ((stop - start) / step === Infinity) throw new Error("infinite range"); |
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| 455 | var range = [], |
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| 456 | k = d3_range_integerScale(Math.abs(step)), |
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| 457 | i = -1, |
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| 458 | j; |
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| 459 | start *= k, stop *= k, step *= k; |
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| 460 | if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k); |
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| 461 | else while ((j = start + step * ++i) < stop) range.push(j / k); |
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| 462 | return range; |
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| 463 | }; |
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| 464 | |
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| 465 | function d3_range_integerScale(x) { |
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| 466 | var k = 1; |
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| 467 | while (x * k % 1) k *= 10; |
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| 468 | return k; |
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| 469 | } |
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| 470 | d3.requote = function(s) { |
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| 471 | return s.replace(d3_requote_re, "\\$&"); |
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| 472 | }; |
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| 473 | |
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| 474 | var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g; |
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| 475 | d3.round = function(x, n) { |
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| 476 | return n |
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| 477 | ? Math.round(x * (n = Math.pow(10, n))) / n |
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| 478 | : Math.round(x); |
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| 479 | }; |
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| 480 | d3.xhr = function(url, mime, callback) { |
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| 481 | var req = new XMLHttpRequest; |
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| 482 | if (arguments.length < 3) callback = mime, mime = null; |
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| 483 | else if (mime && req.overrideMimeType) req.overrideMimeType(mime); |
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| 484 | req.open("GET", url, true); |
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| 485 | if (mime) req.setRequestHeader("Accept", mime); |
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| 486 | req.onreadystatechange = function() { |
---|
| 487 | if (req.readyState === 4) callback(req.status < 300 ? req : null); |
---|
| 488 | }; |
---|
| 489 | req.send(null); |
---|
| 490 | }; |
---|
| 491 | d3.text = function(url, mime, callback) { |
---|
| 492 | function ready(req) { |
---|
| 493 | callback(req && req.responseText); |
---|
| 494 | } |
---|
| 495 | if (arguments.length < 3) { |
---|
| 496 | callback = mime; |
---|
| 497 | mime = null; |
---|
| 498 | } |
---|
| 499 | d3.xhr(url, mime, ready); |
---|
| 500 | }; |
---|
| 501 | d3.json = function(url, callback) { |
---|
| 502 | d3.text(url, "application/json", function(text) { |
---|
| 503 | callback(text ? JSON.parse(text) : null); |
---|
| 504 | }); |
---|
| 505 | }; |
---|
| 506 | d3.html = function(url, callback) { |
---|
| 507 | d3.text(url, "text/html", function(text) { |
---|
| 508 | if (text != null) { // Treat empty string as valid HTML. |
---|
| 509 | var range = document.createRange(); |
---|
| 510 | range.selectNode(document.body); |
---|
| 511 | text = range.createContextualFragment(text); |
---|
| 512 | } |
---|
| 513 | callback(text); |
---|
| 514 | }); |
---|
| 515 | }; |
---|
| 516 | d3.xml = function(url, mime, callback) { |
---|
| 517 | function ready(req) { |
---|
| 518 | callback(req && req.responseXML); |
---|
| 519 | } |
---|
| 520 | if (arguments.length < 3) { |
---|
| 521 | callback = mime; |
---|
| 522 | mime = null; |
---|
| 523 | } |
---|
| 524 | d3.xhr(url, mime, ready); |
---|
| 525 | }; |
---|
| 526 | var d3_nsPrefix = { |
---|
| 527 | svg: "http://www.w3.org/2000/svg", |
---|
| 528 | xhtml: "http://www.w3.org/1999/xhtml", |
---|
| 529 | xlink: "http://www.w3.org/1999/xlink", |
---|
| 530 | xml: "http://www.w3.org/XML/1998/namespace", |
---|
| 531 | xmlns: "http://www.w3.org/2000/xmlns/" |
---|
| 532 | }; |
---|
| 533 | |
---|
| 534 | d3.ns = { |
---|
| 535 | prefix: d3_nsPrefix, |
---|
| 536 | qualify: function(name) { |
---|
| 537 | var i = name.indexOf(":"), |
---|
| 538 | prefix = name; |
---|
| 539 | if (i >= 0) { |
---|
| 540 | prefix = name.substring(0, i); |
---|
| 541 | name = name.substring(i + 1); |
---|
| 542 | } |
---|
| 543 | return d3_nsPrefix.hasOwnProperty(prefix) |
---|
| 544 | ? {space: d3_nsPrefix[prefix], local: name} |
---|
| 545 | : name; |
---|
| 546 | } |
---|
| 547 | }; |
---|
| 548 | d3.dispatch = function() { |
---|
| 549 | var dispatch = new d3_dispatch, |
---|
| 550 | i = -1, |
---|
| 551 | n = arguments.length; |
---|
| 552 | while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch); |
---|
| 553 | return dispatch; |
---|
| 554 | }; |
---|
| 555 | |
---|
| 556 | function d3_dispatch() {} |
---|
| 557 | |
---|
| 558 | d3_dispatch.prototype.on = function(type, listener) { |
---|
| 559 | var i = type.indexOf("."), |
---|
| 560 | name = ""; |
---|
| 561 | |
---|
| 562 | // Extract optional namespace, e.g., "click.foo" |
---|
| 563 | if (i > 0) { |
---|
| 564 | name = type.substring(i + 1); |
---|
| 565 | type = type.substring(0, i); |
---|
| 566 | } |
---|
| 567 | |
---|
| 568 | return arguments.length < 2 |
---|
| 569 | ? this[type].on(name) |
---|
| 570 | : this[type].on(name, listener); |
---|
| 571 | }; |
---|
| 572 | |
---|
| 573 | function d3_dispatch_event(dispatch) { |
---|
| 574 | var listeners = [], |
---|
| 575 | listenerByName = new d3_Map; |
---|
| 576 | |
---|
| 577 | function event() { |
---|
| 578 | var z = listeners, // defensive reference |
---|
| 579 | i = -1, |
---|
| 580 | n = z.length, |
---|
| 581 | l; |
---|
| 582 | while (++i < n) if (l = z[i].on) l.apply(this, arguments); |
---|
| 583 | return dispatch; |
---|
| 584 | } |
---|
| 585 | |
---|
| 586 | event.on = function(name, listener) { |
---|
| 587 | var l = listenerByName.get(name), |
---|
| 588 | i; |
---|
| 589 | |
---|
| 590 | // return the current listener, if any |
---|
| 591 | if (arguments.length < 2) return l && l.on; |
---|
| 592 | |
---|
| 593 | // remove the old listener, if any (with copy-on-write) |
---|
| 594 | if (l) { |
---|
| 595 | l.on = null; |
---|
| 596 | listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1)); |
---|
| 597 | listenerByName.remove(name); |
---|
| 598 | } |
---|
| 599 | |
---|
| 600 | // add the new listener, if any |
---|
| 601 | if (listener) listeners.push(listenerByName.set(name, {on: listener})); |
---|
| 602 | |
---|
| 603 | return dispatch; |
---|
| 604 | }; |
---|
| 605 | |
---|
| 606 | return event; |
---|
| 607 | } |
---|
| 608 | // TODO align |
---|
| 609 | d3.format = function(specifier) { |
---|
| 610 | var match = d3_format_re.exec(specifier), |
---|
| 611 | fill = match[1] || " ", |
---|
| 612 | sign = match[3] || "", |
---|
| 613 | zfill = match[5], |
---|
| 614 | width = +match[6], |
---|
| 615 | comma = match[7], |
---|
| 616 | precision = match[8], |
---|
| 617 | type = match[9], |
---|
| 618 | scale = 1, |
---|
| 619 | suffix = "", |
---|
| 620 | integer = false; |
---|
| 621 | |
---|
| 622 | if (precision) precision = +precision.substring(1); |
---|
| 623 | |
---|
| 624 | if (zfill) { |
---|
| 625 | fill = "0"; // TODO align = "="; |
---|
| 626 | if (comma) width -= Math.floor((width - 1) / 4); |
---|
| 627 | } |
---|
| 628 | |
---|
| 629 | switch (type) { |
---|
| 630 | case "n": comma = true; type = "g"; break; |
---|
| 631 | case "%": scale = 100; suffix = "%"; type = "f"; break; |
---|
| 632 | case "p": scale = 100; suffix = "%"; type = "r"; break; |
---|
| 633 | case "d": integer = true; precision = 0; break; |
---|
| 634 | case "s": scale = -1; type = "r"; break; |
---|
| 635 | } |
---|
| 636 | |
---|
| 637 | // If no precision is specified for r, fallback to general notation. |
---|
| 638 | if (type == "r" && !precision) type = "g"; |
---|
| 639 | |
---|
| 640 | type = d3_format_types.get(type) || d3_format_typeDefault; |
---|
| 641 | |
---|
| 642 | return function(value) { |
---|
| 643 | |
---|
| 644 | // Return the empty string for floats formatted as ints. |
---|
| 645 | if (integer && (value % 1)) return ""; |
---|
| 646 | |
---|
| 647 | // Convert negative to positive, and record the sign prefix. |
---|
| 648 | var negative = (value < 0) && (value = -value) ? "\u2212" : sign; |
---|
| 649 | |
---|
| 650 | // Apply the scale, computing it from the value's exponent for si format. |
---|
| 651 | if (scale < 0) { |
---|
| 652 | var prefix = d3.formatPrefix(value, precision); |
---|
| 653 | value *= prefix.scale; |
---|
| 654 | suffix = prefix.symbol; |
---|
| 655 | } else { |
---|
| 656 | value *= scale; |
---|
| 657 | } |
---|
| 658 | |
---|
| 659 | // Convert to the desired precision. |
---|
| 660 | value = type(value, precision); |
---|
| 661 | |
---|
| 662 | // If the fill character is 0, the sign and group is applied after the fill. |
---|
| 663 | if (zfill) { |
---|
| 664 | var length = value.length + negative.length; |
---|
| 665 | if (length < width) value = new Array(width - length + 1).join(fill) + value; |
---|
| 666 | if (comma) value = d3_format_group(value); |
---|
| 667 | value = negative + value; |
---|
| 668 | } |
---|
| 669 | |
---|
| 670 | // Otherwise (e.g., space-filling), the sign and group is applied before. |
---|
| 671 | else { |
---|
| 672 | if (comma) value = d3_format_group(value); |
---|
| 673 | value = negative + value; |
---|
| 674 | var length = value.length; |
---|
| 675 | if (length < width) value = new Array(width - length + 1).join(fill) + value; |
---|
| 676 | } |
---|
| 677 | |
---|
| 678 | return value + suffix; |
---|
| 679 | }; |
---|
| 680 | }; |
---|
| 681 | |
---|
| 682 | // [[fill]align][sign][#][0][width][,][.precision][type] |
---|
| 683 | var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/; |
---|
| 684 | |
---|
| 685 | var d3_format_types = d3.map({ |
---|
| 686 | g: function(x, p) { return x.toPrecision(p); }, |
---|
| 687 | e: function(x, p) { return x.toExponential(p); }, |
---|
| 688 | f: function(x, p) { return x.toFixed(p); }, |
---|
| 689 | r: function(x, p) { return d3.round(x, p = d3_format_precision(x, p)).toFixed(Math.max(0, Math.min(20, p))); } |
---|
| 690 | }); |
---|
| 691 | |
---|
| 692 | function d3_format_precision(x, p) { |
---|
| 693 | return p - (x ? 1 + Math.floor(Math.log(x + Math.pow(10, 1 + Math.floor(Math.log(x) / Math.LN10) - p)) / Math.LN10) : 1); |
---|
| 694 | } |
---|
| 695 | |
---|
| 696 | function d3_format_typeDefault(x) { |
---|
| 697 | return x + ""; |
---|
| 698 | } |
---|
| 699 | |
---|
| 700 | // Apply comma grouping for thousands. |
---|
| 701 | function d3_format_group(value) { |
---|
| 702 | var i = value.lastIndexOf("."), |
---|
| 703 | f = i >= 0 ? value.substring(i) : (i = value.length, ""), |
---|
| 704 | t = []; |
---|
| 705 | while (i > 0) t.push(value.substring(i -= 3, i + 3)); |
---|
| 706 | return t.reverse().join(",") + f; |
---|
| 707 | } |
---|
| 708 | var d3_formatPrefixes = ["y","z","a","f","p","n","Ό","m","","k","M","G","T","P","E","Z","Y"].map(d3_formatPrefix); |
---|
| 709 | |
---|
| 710 | d3.formatPrefix = function(value, precision) { |
---|
| 711 | var i = 0; |
---|
| 712 | if (value) { |
---|
| 713 | if (value < 0) value *= -1; |
---|
| 714 | if (precision) value = d3.round(value, d3_format_precision(value, precision)); |
---|
| 715 | i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10); |
---|
| 716 | i = Math.max(-24, Math.min(24, Math.floor((i <= 0 ? i + 1 : i - 1) / 3) * 3)); |
---|
| 717 | } |
---|
| 718 | return d3_formatPrefixes[8 + i / 3]; |
---|
| 719 | }; |
---|
| 720 | |
---|
| 721 | function d3_formatPrefix(d, i) { |
---|
| 722 | return { |
---|
| 723 | scale: Math.pow(10, (8 - i) * 3), |
---|
| 724 | symbol: d |
---|
| 725 | }; |
---|
| 726 | } |
---|
| 727 | |
---|
| 728 | /* |
---|
| 729 | * TERMS OF USE - EASING EQUATIONS |
---|
| 730 | * |
---|
| 731 | * Open source under the BSD License. |
---|
| 732 | * |
---|
| 733 | * Copyright 2001 Robert Penner |
---|
| 734 | * All rights reserved. |
---|
| 735 | * |
---|
| 736 | * Redistribution and use in source and binary forms, with or without |
---|
| 737 | * modification, are permitted provided that the following conditions are met: |
---|
| 738 | * |
---|
| 739 | * - Redistributions of source code must retain the above copyright notice, this |
---|
| 740 | * list of conditions and the following disclaimer. |
---|
| 741 | * |
---|
| 742 | * - Redistributions in binary form must reproduce the above copyright notice, |
---|
| 743 | * this list of conditions and the following disclaimer in the documentation |
---|
| 744 | * and/or other materials provided with the distribution. |
---|
| 745 | * |
---|
| 746 | * - Neither the name of the author nor the names of contributors may be used to |
---|
| 747 | * endorse or promote products derived from this software without specific |
---|
| 748 | * prior written permission. |
---|
| 749 | * |
---|
| 750 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
---|
| 751 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
---|
| 752 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
---|
| 753 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
---|
| 754 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
---|
| 755 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
---|
| 756 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
---|
| 757 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
---|
| 758 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
---|
| 759 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
---|
| 760 | * POSSIBILITY OF SUCH DAMAGE. |
---|
| 761 | */ |
---|
| 762 | |
---|
| 763 | var d3_ease_quad = d3_ease_poly(2), |
---|
| 764 | d3_ease_cubic = d3_ease_poly(3), |
---|
| 765 | d3_ease_default = function() { return d3_ease_identity; }; |
---|
| 766 | |
---|
| 767 | var d3_ease = d3.map({ |
---|
| 768 | linear: d3_ease_default, |
---|
| 769 | poly: d3_ease_poly, |
---|
| 770 | quad: function() { return d3_ease_quad; }, |
---|
| 771 | cubic: function() { return d3_ease_cubic; }, |
---|
| 772 | sin: function() { return d3_ease_sin; }, |
---|
| 773 | exp: function() { return d3_ease_exp; }, |
---|
| 774 | circle: function() { return d3_ease_circle; }, |
---|
| 775 | elastic: d3_ease_elastic, |
---|
| 776 | back: d3_ease_back, |
---|
| 777 | bounce: function() { return d3_ease_bounce; } |
---|
| 778 | }); |
---|
| 779 | |
---|
| 780 | var d3_ease_mode = d3.map({ |
---|
| 781 | "in": d3_ease_identity, |
---|
| 782 | "out": d3_ease_reverse, |
---|
| 783 | "in-out": d3_ease_reflect, |
---|
| 784 | "out-in": function(f) { return d3_ease_reflect(d3_ease_reverse(f)); } |
---|
| 785 | }); |
---|
| 786 | |
---|
| 787 | d3.ease = function(name) { |
---|
| 788 | var i = name.indexOf("-"), |
---|
| 789 | t = i >= 0 ? name.substring(0, i) : name, |
---|
| 790 | m = i >= 0 ? name.substring(i + 1) : "in"; |
---|
| 791 | t = d3_ease.get(t) || d3_ease_default; |
---|
| 792 | m = d3_ease_mode.get(m) || d3_ease_identity; |
---|
| 793 | return d3_ease_clamp(m(t.apply(null, Array.prototype.slice.call(arguments, 1)))); |
---|
| 794 | }; |
---|
| 795 | |
---|
| 796 | function d3_ease_clamp(f) { |
---|
| 797 | return function(t) { |
---|
| 798 | return t <= 0 ? 0 : t >= 1 ? 1 : f(t); |
---|
| 799 | }; |
---|
| 800 | } |
---|
| 801 | |
---|
| 802 | function d3_ease_reverse(f) { |
---|
| 803 | return function(t) { |
---|
| 804 | return 1 - f(1 - t); |
---|
| 805 | }; |
---|
| 806 | } |
---|
| 807 | |
---|
| 808 | function d3_ease_reflect(f) { |
---|
| 809 | return function(t) { |
---|
| 810 | return .5 * (t < .5 ? f(2 * t) : (2 - f(2 - 2 * t))); |
---|
| 811 | }; |
---|
| 812 | } |
---|
| 813 | |
---|
| 814 | function d3_ease_identity(t) { |
---|
| 815 | return t; |
---|
| 816 | } |
---|
| 817 | |
---|
| 818 | function d3_ease_poly(e) { |
---|
| 819 | return function(t) { |
---|
| 820 | return Math.pow(t, e); |
---|
| 821 | }; |
---|
| 822 | } |
---|
| 823 | |
---|
| 824 | function d3_ease_sin(t) { |
---|
| 825 | return 1 - Math.cos(t * Math.PI / 2); |
---|
| 826 | } |
---|
| 827 | |
---|
| 828 | function d3_ease_exp(t) { |
---|
| 829 | return Math.pow(2, 10 * (t - 1)); |
---|
| 830 | } |
---|
| 831 | |
---|
| 832 | function d3_ease_circle(t) { |
---|
| 833 | return 1 - Math.sqrt(1 - t * t); |
---|
| 834 | } |
---|
| 835 | |
---|
| 836 | function d3_ease_elastic(a, p) { |
---|
| 837 | var s; |
---|
| 838 | if (arguments.length < 2) p = 0.45; |
---|
| 839 | if (arguments.length < 1) { a = 1; s = p / 4; } |
---|
| 840 | else s = p / (2 * Math.PI) * Math.asin(1 / a); |
---|
| 841 | return function(t) { |
---|
| 842 | return 1 + a * Math.pow(2, 10 * -t) * Math.sin((t - s) * 2 * Math.PI / p); |
---|
| 843 | }; |
---|
| 844 | } |
---|
| 845 | |
---|
| 846 | function d3_ease_back(s) { |
---|
| 847 | if (!s) s = 1.70158; |
---|
| 848 | return function(t) { |
---|
| 849 | return t * t * ((s + 1) * t - s); |
---|
| 850 | }; |
---|
| 851 | } |
---|
| 852 | |
---|
| 853 | function d3_ease_bounce(t) { |
---|
| 854 | return t < 1 / 2.75 ? 7.5625 * t * t |
---|
| 855 | : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75 |
---|
| 856 | : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375 |
---|
| 857 | : 7.5625 * (t -= 2.625 / 2.75) * t + .984375; |
---|
| 858 | } |
---|
| 859 | d3.event = null; |
---|
| 860 | |
---|
| 861 | function d3_eventCancel() { |
---|
| 862 | d3.event.stopPropagation(); |
---|
| 863 | d3.event.preventDefault(); |
---|
| 864 | } |
---|
| 865 | |
---|
| 866 | function d3_eventSource() { |
---|
| 867 | var e = d3.event, s; |
---|
| 868 | while (s = e.sourceEvent) e = s; |
---|
| 869 | return e; |
---|
| 870 | } |
---|
| 871 | |
---|
| 872 | // Like d3.dispatch, but for custom events abstracting native UI events. These |
---|
| 873 | // events have a target component (such as a brush), a target element (such as |
---|
| 874 | // the svg:g element containing the brush) and the standard arguments `d` (the |
---|
| 875 | // target element's data) and `i` (the selection index of the target element). |
---|
| 876 | function d3_eventDispatch(target) { |
---|
| 877 | var dispatch = new d3_dispatch, |
---|
| 878 | i = 0, |
---|
| 879 | n = arguments.length; |
---|
| 880 | |
---|
| 881 | while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch); |
---|
| 882 | |
---|
| 883 | // Creates a dispatch context for the specified `thiz` (typically, the target |
---|
| 884 | // DOM element that received the source event) and `argumentz` (typically, the |
---|
| 885 | // data `d` and index `i` of the target element). The returned function can be |
---|
| 886 | // used to dispatch an event to any registered listeners; the function takes a |
---|
| 887 | // single argument as input, being the event to dispatch. The event must have |
---|
| 888 | // a "type" attribute which corresponds to a type registered in the |
---|
| 889 | // constructor. This context will automatically populate the "sourceEvent" and |
---|
| 890 | // "target" attributes of the event, as well as setting the `d3.event` global |
---|
| 891 | // for the duration of the notification. |
---|
| 892 | dispatch.of = function(thiz, argumentz) { |
---|
| 893 | return function(e1) { |
---|
| 894 | try { |
---|
| 895 | var e0 = |
---|
| 896 | e1.sourceEvent = d3.event; |
---|
| 897 | e1.target = target; |
---|
| 898 | d3.event = e1; |
---|
| 899 | dispatch[e1.type].apply(thiz, argumentz); |
---|
| 900 | } finally { |
---|
| 901 | d3.event = e0; |
---|
| 902 | } |
---|
| 903 | }; |
---|
| 904 | }; |
---|
| 905 | |
---|
| 906 | return dispatch; |
---|
| 907 | } |
---|
| 908 | d3.interpolate = function(a, b) { |
---|
| 909 | var i = d3.interpolators.length, f; |
---|
| 910 | while (--i >= 0 && !(f = d3.interpolators[i](a, b))); |
---|
| 911 | return f; |
---|
| 912 | }; |
---|
| 913 | |
---|
| 914 | d3.interpolateNumber = function(a, b) { |
---|
| 915 | b -= a; |
---|
| 916 | return function(t) { return a + b * t; }; |
---|
| 917 | }; |
---|
| 918 | |
---|
| 919 | d3.interpolateRound = function(a, b) { |
---|
| 920 | b -= a; |
---|
| 921 | return function(t) { return Math.round(a + b * t); }; |
---|
| 922 | }; |
---|
| 923 | |
---|
| 924 | d3.interpolateString = function(a, b) { |
---|
| 925 | var m, // current match |
---|
| 926 | i, // current index |
---|
| 927 | j, // current index (for coallescing) |
---|
| 928 | s0 = 0, // start index of current string prefix |
---|
| 929 | s1 = 0, // end index of current string prefix |
---|
| 930 | s = [], // string constants and placeholders |
---|
| 931 | q = [], // number interpolators |
---|
| 932 | n, // q.length |
---|
| 933 | o; |
---|
| 934 | |
---|
| 935 | // Reset our regular expression! |
---|
| 936 | d3_interpolate_number.lastIndex = 0; |
---|
| 937 | |
---|
| 938 | // Find all numbers in b. |
---|
| 939 | for (i = 0; m = d3_interpolate_number.exec(b); ++i) { |
---|
| 940 | if (m.index) s.push(b.substring(s0, s1 = m.index)); |
---|
| 941 | q.push({i: s.length, x: m[0]}); |
---|
| 942 | s.push(null); |
---|
| 943 | s0 = d3_interpolate_number.lastIndex; |
---|
| 944 | } |
---|
| 945 | if (s0 < b.length) s.push(b.substring(s0)); |
---|
| 946 | |
---|
| 947 | // Find all numbers in a. |
---|
| 948 | for (i = 0, n = q.length; (m = d3_interpolate_number.exec(a)) && i < n; ++i) { |
---|
| 949 | o = q[i]; |
---|
| 950 | if (o.x == m[0]) { // The numbers match, so coallesce. |
---|
| 951 | if (o.i) { |
---|
| 952 | if (s[o.i + 1] == null) { // This match is followed by another number. |
---|
| 953 | s[o.i - 1] += o.x; |
---|
| 954 | s.splice(o.i, 1); |
---|
| 955 | for (j = i + 1; j < n; ++j) q[j].i--; |
---|
| 956 | } else { // This match is followed by a string, so coallesce twice. |
---|
| 957 | s[o.i - 1] += o.x + s[o.i + 1]; |
---|
| 958 | s.splice(o.i, 2); |
---|
| 959 | for (j = i + 1; j < n; ++j) q[j].i -= 2; |
---|
| 960 | } |
---|
| 961 | } else { |
---|
| 962 | if (s[o.i + 1] == null) { // This match is followed by another number. |
---|
| 963 | s[o.i] = o.x; |
---|
| 964 | } else { // This match is followed by a string, so coallesce twice. |
---|
| 965 | s[o.i] = o.x + s[o.i + 1]; |
---|
| 966 | s.splice(o.i + 1, 1); |
---|
| 967 | for (j = i + 1; j < n; ++j) q[j].i--; |
---|
| 968 | } |
---|
| 969 | } |
---|
| 970 | q.splice(i, 1); |
---|
| 971 | n--; |
---|
| 972 | i--; |
---|
| 973 | } else { |
---|
| 974 | o.x = d3.interpolateNumber(parseFloat(m[0]), parseFloat(o.x)); |
---|
| 975 | } |
---|
| 976 | } |
---|
| 977 | |
---|
| 978 | // Remove any numbers in b not found in a. |
---|
| 979 | while (i < n) { |
---|
| 980 | o = q.pop(); |
---|
| 981 | if (s[o.i + 1] == null) { // This match is followed by another number. |
---|
| 982 | s[o.i] = o.x; |
---|
| 983 | } else { // This match is followed by a string, so coallesce twice. |
---|
| 984 | s[o.i] = o.x + s[o.i + 1]; |
---|
| 985 | s.splice(o.i + 1, 1); |
---|
| 986 | } |
---|
| 987 | n--; |
---|
| 988 | } |
---|
| 989 | |
---|
| 990 | // Special optimization for only a single match. |
---|
| 991 | if (s.length === 1) { |
---|
| 992 | return s[0] == null ? q[0].x : function() { return b; }; |
---|
| 993 | } |
---|
| 994 | |
---|
| 995 | // Otherwise, interpolate each of the numbers and rejoin the string. |
---|
| 996 | return function(t) { |
---|
| 997 | for (i = 0; i < n; ++i) s[(o = q[i]).i] = o.x(t); |
---|
| 998 | return s.join(""); |
---|
| 999 | }; |
---|
| 1000 | }; |
---|
| 1001 | |
---|
| 1002 | d3.interpolateTransform = function(a, b) { |
---|
| 1003 | var s = [], // string constants and placeholders |
---|
| 1004 | q = [], // number interpolators |
---|
| 1005 | n, |
---|
| 1006 | A = d3.transform(a), |
---|
| 1007 | B = d3.transform(b), |
---|
| 1008 | ta = A.translate, |
---|
| 1009 | tb = B.translate, |
---|
| 1010 | ra = A.rotate, |
---|
| 1011 | rb = B.rotate, |
---|
| 1012 | wa = A.skew, |
---|
| 1013 | wb = B.skew, |
---|
| 1014 | ka = A.scale, |
---|
| 1015 | kb = B.scale; |
---|
| 1016 | |
---|
| 1017 | if (ta[0] != tb[0] || ta[1] != tb[1]) { |
---|
| 1018 | s.push("translate(", null, ",", null, ")"); |
---|
| 1019 | q.push({i: 1, x: d3.interpolateNumber(ta[0], tb[0])}, {i: 3, x: d3.interpolateNumber(ta[1], tb[1])}); |
---|
| 1020 | } else if (tb[0] || tb[1]) { |
---|
| 1021 | s.push("translate(" + tb + ")"); |
---|
| 1022 | } else { |
---|
| 1023 | s.push(""); |
---|
| 1024 | } |
---|
| 1025 | |
---|
| 1026 | if (ra != rb) { |
---|
| 1027 | q.push({i: s.push(s.pop() + "rotate(", null, ")") - 2, x: d3.interpolateNumber(ra, rb)}); |
---|
| 1028 | } else if (rb) { |
---|
| 1029 | s.push(s.pop() + "rotate(" + rb + ")"); |
---|
| 1030 | } |
---|
| 1031 | |
---|
| 1032 | if (wa != wb) { |
---|
| 1033 | q.push({i: s.push(s.pop() + "skewX(", null, ")") - 2, x: d3.interpolateNumber(wa, wb)}); |
---|
| 1034 | } else if (wb) { |
---|
| 1035 | s.push(s.pop() + "skewX(" + wb + ")"); |
---|
| 1036 | } |
---|
| 1037 | |
---|
| 1038 | if (ka[0] != kb[0] || ka[1] != kb[1]) { |
---|
| 1039 | n = s.push(s.pop() + "scale(", null, ",", null, ")"); |
---|
| 1040 | q.push({i: n - 4, x: d3.interpolateNumber(ka[0], kb[0])}, {i: n - 2, x: d3.interpolateNumber(ka[1], kb[1])}); |
---|
| 1041 | } else if (kb[0] != 1 || kb[1] != 1) { |
---|
| 1042 | s.push(s.pop() + "scale(" + kb + ")"); |
---|
| 1043 | } |
---|
| 1044 | |
---|
| 1045 | n = q.length; |
---|
| 1046 | return function(t) { |
---|
| 1047 | var i = -1, o; |
---|
| 1048 | while (++i < n) s[(o = q[i]).i] = o.x(t); |
---|
| 1049 | return s.join(""); |
---|
| 1050 | }; |
---|
| 1051 | }; |
---|
| 1052 | |
---|
| 1053 | d3.interpolateRgb = function(a, b) { |
---|
| 1054 | a = d3.rgb(a); |
---|
| 1055 | b = d3.rgb(b); |
---|
| 1056 | var ar = a.r, |
---|
| 1057 | ag = a.g, |
---|
| 1058 | ab = a.b, |
---|
| 1059 | br = b.r - ar, |
---|
| 1060 | bg = b.g - ag, |
---|
| 1061 | bb = b.b - ab; |
---|
| 1062 | return function(t) { |
---|
| 1063 | return "#" |
---|
| 1064 | + d3_rgb_hex(Math.round(ar + br * t)) |
---|
| 1065 | + d3_rgb_hex(Math.round(ag + bg * t)) |
---|
| 1066 | + d3_rgb_hex(Math.round(ab + bb * t)); |
---|
| 1067 | }; |
---|
| 1068 | }; |
---|
| 1069 | |
---|
| 1070 | // interpolates HSL space, but outputs RGB string (for compatibility) |
---|
| 1071 | d3.interpolateHsl = function(a, b) { |
---|
| 1072 | a = d3.hsl(a); |
---|
| 1073 | b = d3.hsl(b); |
---|
| 1074 | var h0 = a.h, |
---|
| 1075 | s0 = a.s, |
---|
| 1076 | l0 = a.l, |
---|
| 1077 | h1 = b.h - h0, |
---|
| 1078 | s1 = b.s - s0, |
---|
| 1079 | l1 = b.l - l0; |
---|
| 1080 | return function(t) { |
---|
| 1081 | return d3_hsl_rgb(h0 + h1 * t, s0 + s1 * t, l0 + l1 * t).toString(); |
---|
| 1082 | }; |
---|
| 1083 | }; |
---|
| 1084 | |
---|
| 1085 | d3.interpolateArray = function(a, b) { |
---|
| 1086 | var x = [], |
---|
| 1087 | c = [], |
---|
| 1088 | na = a.length, |
---|
| 1089 | nb = b.length, |
---|
| 1090 | n0 = Math.min(a.length, b.length), |
---|
| 1091 | i; |
---|
| 1092 | for (i = 0; i < n0; ++i) x.push(d3.interpolate(a[i], b[i])); |
---|
| 1093 | for (; i < na; ++i) c[i] = a[i]; |
---|
| 1094 | for (; i < nb; ++i) c[i] = b[i]; |
---|
| 1095 | return function(t) { |
---|
| 1096 | for (i = 0; i < n0; ++i) c[i] = x[i](t); |
---|
| 1097 | return c; |
---|
| 1098 | }; |
---|
| 1099 | }; |
---|
| 1100 | |
---|
| 1101 | d3.interpolateObject = function(a, b) { |
---|
| 1102 | var i = {}, |
---|
| 1103 | c = {}, |
---|
| 1104 | k; |
---|
| 1105 | for (k in a) { |
---|
| 1106 | if (k in b) { |
---|
| 1107 | i[k] = d3_interpolateByName(k)(a[k], b[k]); |
---|
| 1108 | } else { |
---|
| 1109 | c[k] = a[k]; |
---|
| 1110 | } |
---|
| 1111 | } |
---|
| 1112 | for (k in b) { |
---|
| 1113 | if (!(k in a)) { |
---|
| 1114 | c[k] = b[k]; |
---|
| 1115 | } |
---|
| 1116 | } |
---|
| 1117 | return function(t) { |
---|
| 1118 | for (k in i) c[k] = i[k](t); |
---|
| 1119 | return c; |
---|
| 1120 | }; |
---|
| 1121 | } |
---|
| 1122 | |
---|
| 1123 | var d3_interpolate_number = /[-+]?(?:\d*\.?\d+)(?:[eE][-+]?\d+)?/g; |
---|
| 1124 | |
---|
| 1125 | function d3_interpolateByName(n) { |
---|
| 1126 | return n == "transform" |
---|
| 1127 | ? d3.interpolateTransform |
---|
| 1128 | : d3.interpolate; |
---|
| 1129 | } |
---|
| 1130 | |
---|
| 1131 | d3.interpolators = [ |
---|
| 1132 | d3.interpolateObject, |
---|
| 1133 | function(a, b) { return (b instanceof Array) && d3.interpolateArray(a, b); }, |
---|
| 1134 | function(a, b) { return (typeof a === "string" || typeof b === "string") && d3.interpolateString(a + "", b + ""); }, |
---|
| 1135 | 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); }, |
---|
| 1136 | function(a, b) { return !isNaN(a = +a) && !isNaN(b = +b) && d3.interpolateNumber(a, b); } |
---|
| 1137 | ]; |
---|
| 1138 | function d3_uninterpolateNumber(a, b) { |
---|
| 1139 | b = b - (a = +a) ? 1 / (b - a) : 0; |
---|
| 1140 | return function(x) { return (x - a) * b; }; |
---|
| 1141 | } |
---|
| 1142 | |
---|
| 1143 | function d3_uninterpolateClamp(a, b) { |
---|
| 1144 | b = b - (a = +a) ? 1 / (b - a) : 0; |
---|
| 1145 | return function(x) { return Math.max(0, Math.min(1, (x - a) * b)); }; |
---|
| 1146 | } |
---|
| 1147 | d3.rgb = function(r, g, b) { |
---|
| 1148 | return arguments.length === 1 |
---|
| 1149 | ? (r instanceof d3_Rgb ? d3_rgb(r.r, r.g, r.b) |
---|
| 1150 | : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb)) |
---|
| 1151 | : d3_rgb(~~r, ~~g, ~~b); |
---|
| 1152 | }; |
---|
| 1153 | |
---|
| 1154 | function d3_rgb(r, g, b) { |
---|
| 1155 | return new d3_Rgb(r, g, b); |
---|
| 1156 | } |
---|
| 1157 | |
---|
| 1158 | function d3_Rgb(r, g, b) { |
---|
| 1159 | this.r = r; |
---|
| 1160 | this.g = g; |
---|
| 1161 | this.b = b; |
---|
| 1162 | } |
---|
| 1163 | |
---|
| 1164 | d3_Rgb.prototype.brighter = function(k) { |
---|
| 1165 | k = Math.pow(0.7, arguments.length ? k : 1); |
---|
| 1166 | var r = this.r, |
---|
| 1167 | g = this.g, |
---|
| 1168 | b = this.b, |
---|
| 1169 | i = 30; |
---|
| 1170 | if (!r && !g && !b) return d3_rgb(i, i, i); |
---|
| 1171 | if (r && r < i) r = i; |
---|
| 1172 | if (g && g < i) g = i; |
---|
| 1173 | if (b && b < i) b = i; |
---|
| 1174 | return d3_rgb( |
---|
| 1175 | Math.min(255, Math.floor(r / k)), |
---|
| 1176 | Math.min(255, Math.floor(g / k)), |
---|
| 1177 | Math.min(255, Math.floor(b / k))); |
---|
| 1178 | }; |
---|
| 1179 | |
---|
| 1180 | d3_Rgb.prototype.darker = function(k) { |
---|
| 1181 | k = Math.pow(0.7, arguments.length ? k : 1); |
---|
| 1182 | return d3_rgb( |
---|
| 1183 | Math.floor(k * this.r), |
---|
| 1184 | Math.floor(k * this.g), |
---|
| 1185 | Math.floor(k * this.b)); |
---|
| 1186 | }; |
---|
| 1187 | |
---|
| 1188 | d3_Rgb.prototype.hsl = function() { |
---|
| 1189 | return d3_rgb_hsl(this.r, this.g, this.b); |
---|
| 1190 | }; |
---|
| 1191 | |
---|
| 1192 | d3_Rgb.prototype.toString = function() { |
---|
| 1193 | return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b); |
---|
| 1194 | }; |
---|
| 1195 | |
---|
| 1196 | function d3_rgb_hex(v) { |
---|
| 1197 | return v < 0x10 |
---|
| 1198 | ? "0" + Math.max(0, v).toString(16) |
---|
| 1199 | : Math.min(255, v).toString(16); |
---|
| 1200 | } |
---|
| 1201 | |
---|
| 1202 | function d3_rgb_parse(format, rgb, hsl) { |
---|
| 1203 | var r = 0, // red channel; int in [0, 255] |
---|
| 1204 | g = 0, // green channel; int in [0, 255] |
---|
| 1205 | b = 0, // blue channel; int in [0, 255] |
---|
| 1206 | m1, // CSS color specification match |
---|
| 1207 | m2, // CSS color specification type (e.g., rgb) |
---|
| 1208 | name; |
---|
| 1209 | |
---|
| 1210 | /* Handle hsl, rgb. */ |
---|
| 1211 | m1 = /([a-z]+)\((.*)\)/i.exec(format); |
---|
| 1212 | if (m1) { |
---|
| 1213 | m2 = m1[2].split(","); |
---|
| 1214 | switch (m1[1]) { |
---|
| 1215 | case "hsl": { |
---|
| 1216 | return hsl( |
---|
| 1217 | parseFloat(m2[0]), // degrees |
---|
| 1218 | parseFloat(m2[1]) / 100, // percentage |
---|
| 1219 | parseFloat(m2[2]) / 100 // percentage |
---|
| 1220 | ); |
---|
| 1221 | } |
---|
| 1222 | case "rgb": { |
---|
| 1223 | return rgb( |
---|
| 1224 | d3_rgb_parseNumber(m2[0]), |
---|
| 1225 | d3_rgb_parseNumber(m2[1]), |
---|
| 1226 | d3_rgb_parseNumber(m2[2]) |
---|
| 1227 | ); |
---|
| 1228 | } |
---|
| 1229 | } |
---|
| 1230 | } |
---|
| 1231 | |
---|
| 1232 | /* Named colors. */ |
---|
| 1233 | if (name = d3_rgb_names.get(format)) return rgb(name.r, name.g, name.b); |
---|
| 1234 | |
---|
| 1235 | /* Hexadecimal colors: #rgb and #rrggbb. */ |
---|
| 1236 | if (format != null && format.charAt(0) === "#") { |
---|
| 1237 | if (format.length === 4) { |
---|
| 1238 | r = format.charAt(1); r += r; |
---|
| 1239 | g = format.charAt(2); g += g; |
---|
| 1240 | b = format.charAt(3); b += b; |
---|
| 1241 | } else if (format.length === 7) { |
---|
| 1242 | r = format.substring(1, 3); |
---|
| 1243 | g = format.substring(3, 5); |
---|
| 1244 | b = format.substring(5, 7); |
---|
| 1245 | } |
---|
| 1246 | r = parseInt(r, 16); |
---|
| 1247 | g = parseInt(g, 16); |
---|
| 1248 | b = parseInt(b, 16); |
---|
| 1249 | } |
---|
| 1250 | |
---|
| 1251 | return rgb(r, g, b); |
---|
| 1252 | } |
---|
| 1253 | |
---|
| 1254 | function d3_rgb_hsl(r, g, b) { |
---|
| 1255 | var min = Math.min(r /= 255, g /= 255, b /= 255), |
---|
| 1256 | max = Math.max(r, g, b), |
---|
| 1257 | d = max - min, |
---|
| 1258 | h, |
---|
| 1259 | s, |
---|
| 1260 | l = (max + min) / 2; |
---|
| 1261 | if (d) { |
---|
| 1262 | s = l < .5 ? d / (max + min) : d / (2 - max - min); |
---|
| 1263 | if (r == max) h = (g - b) / d + (g < b ? 6 : 0); |
---|
| 1264 | else if (g == max) h = (b - r) / d + 2; |
---|
| 1265 | else h = (r - g) / d + 4; |
---|
| 1266 | h *= 60; |
---|
| 1267 | } else { |
---|
| 1268 | s = h = 0; |
---|
| 1269 | } |
---|
| 1270 | return d3_hsl(h, s, l); |
---|
| 1271 | } |
---|
| 1272 | |
---|
| 1273 | function d3_rgb_parseNumber(c) { // either integer or percentage |
---|
| 1274 | var f = parseFloat(c); |
---|
| 1275 | return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f; |
---|
| 1276 | } |
---|
| 1277 | |
---|
| 1278 | var d3_rgb_names = d3.map({ |
---|
| 1279 | aliceblue: "#f0f8ff", |
---|
| 1280 | antiquewhite: "#faebd7", |
---|
| 1281 | aqua: "#00ffff", |
---|
| 1282 | aquamarine: "#7fffd4", |
---|
| 1283 | azure: "#f0ffff", |
---|
| 1284 | beige: "#f5f5dc", |
---|
| 1285 | bisque: "#ffe4c4", |
---|
| 1286 | black: "#000000", |
---|
| 1287 | blanchedalmond: "#ffebcd", |
---|
| 1288 | blue: "#0000ff", |
---|
| 1289 | blueviolet: "#8a2be2", |
---|
| 1290 | brown: "#a52a2a", |
---|
| 1291 | burlywood: "#deb887", |
---|
| 1292 | cadetblue: "#5f9ea0", |
---|
| 1293 | chartreuse: "#7fff00", |
---|
| 1294 | chocolate: "#d2691e", |
---|
| 1295 | coral: "#ff7f50", |
---|
| 1296 | cornflowerblue: "#6495ed", |
---|
| 1297 | cornsilk: "#fff8dc", |
---|
| 1298 | crimson: "#dc143c", |
---|
| 1299 | cyan: "#00ffff", |
---|
| 1300 | darkblue: "#00008b", |
---|
| 1301 | darkcyan: "#008b8b", |
---|
| 1302 | darkgoldenrod: "#b8860b", |
---|
| 1303 | darkgray: "#a9a9a9", |
---|
| 1304 | darkgreen: "#006400", |
---|
| 1305 | darkgrey: "#a9a9a9", |
---|
| 1306 | darkkhaki: "#bdb76b", |
---|
| 1307 | darkmagenta: "#8b008b", |
---|
| 1308 | darkolivegreen: "#556b2f", |
---|
| 1309 | darkorange: "#ff8c00", |
---|
| 1310 | darkorchid: "#9932cc", |
---|
| 1311 | darkred: "#8b0000", |
---|
| 1312 | darksalmon: "#e9967a", |
---|
| 1313 | darkseagreen: "#8fbc8f", |
---|
| 1314 | darkslateblue: "#483d8b", |
---|
| 1315 | darkslategray: "#2f4f4f", |
---|
| 1316 | darkslategrey: "#2f4f4f", |
---|
| 1317 | darkturquoise: "#00ced1", |
---|
| 1318 | darkviolet: "#9400d3", |
---|
| 1319 | deeppink: "#ff1493", |
---|
| 1320 | deepskyblue: "#00bfff", |
---|
| 1321 | dimgray: "#696969", |
---|
| 1322 | dimgrey: "#696969", |
---|
| 1323 | dodgerblue: "#1e90ff", |
---|
| 1324 | firebrick: "#b22222", |
---|
| 1325 | floralwhite: "#fffaf0", |
---|
| 1326 | forestgreen: "#228b22", |
---|
| 1327 | fuchsia: "#ff00ff", |
---|
| 1328 | gainsboro: "#dcdcdc", |
---|
| 1329 | ghostwhite: "#f8f8ff", |
---|
| 1330 | gold: "#ffd700", |
---|
| 1331 | goldenrod: "#daa520", |
---|
| 1332 | gray: "#808080", |
---|
| 1333 | green: "#008000", |
---|
| 1334 | greenyellow: "#adff2f", |
---|
| 1335 | grey: "#808080", |
---|
| 1336 | honeydew: "#f0fff0", |
---|
| 1337 | hotpink: "#ff69b4", |
---|
| 1338 | indianred: "#cd5c5c", |
---|
| 1339 | indigo: "#4b0082", |
---|
| 1340 | ivory: "#fffff0", |
---|
| 1341 | khaki: "#f0e68c", |
---|
| 1342 | lavender: "#e6e6fa", |
---|
| 1343 | lavenderblush: "#fff0f5", |
---|
| 1344 | lawngreen: "#7cfc00", |
---|
| 1345 | lemonchiffon: "#fffacd", |
---|
| 1346 | lightblue: "#add8e6", |
---|
| 1347 | lightcoral: "#f08080", |
---|
| 1348 | lightcyan: "#e0ffff", |
---|
| 1349 | lightgoldenrodyellow: "#fafad2", |
---|
| 1350 | lightgray: "#d3d3d3", |
---|
| 1351 | lightgreen: "#90ee90", |
---|
| 1352 | lightgrey: "#d3d3d3", |
---|
| 1353 | lightpink: "#ffb6c1", |
---|
| 1354 | lightsalmon: "#ffa07a", |
---|
| 1355 | lightseagreen: "#20b2aa", |
---|
| 1356 | lightskyblue: "#87cefa", |
---|
| 1357 | lightslategray: "#778899", |
---|
| 1358 | lightslategrey: "#778899", |
---|
| 1359 | lightsteelblue: "#b0c4de", |
---|
| 1360 | lightyellow: "#ffffe0", |
---|
| 1361 | lime: "#00ff00", |
---|
| 1362 | limegreen: "#32cd32", |
---|
| 1363 | linen: "#faf0e6", |
---|
| 1364 | magenta: "#ff00ff", |
---|
| 1365 | maroon: "#800000", |
---|
| 1366 | mediumaquamarine: "#66cdaa", |
---|
| 1367 | mediumblue: "#0000cd", |
---|
| 1368 | mediumorchid: "#ba55d3", |
---|
| 1369 | mediumpurple: "#9370db", |
---|
| 1370 | mediumseagreen: "#3cb371", |
---|
| 1371 | mediumslateblue: "#7b68ee", |
---|
| 1372 | mediumspringgreen: "#00fa9a", |
---|
| 1373 | mediumturquoise: "#48d1cc", |
---|
| 1374 | mediumvioletred: "#c71585", |
---|
| 1375 | midnightblue: "#191970", |
---|
| 1376 | mintcream: "#f5fffa", |
---|
| 1377 | mistyrose: "#ffe4e1", |
---|
| 1378 | moccasin: "#ffe4b5", |
---|
| 1379 | navajowhite: "#ffdead", |
---|
| 1380 | navy: "#000080", |
---|
| 1381 | oldlace: "#fdf5e6", |
---|
| 1382 | olive: "#808000", |
---|
| 1383 | olivedrab: "#6b8e23", |
---|
| 1384 | orange: "#ffa500", |
---|
| 1385 | orangered: "#ff4500", |
---|
| 1386 | orchid: "#da70d6", |
---|
| 1387 | palegoldenrod: "#eee8aa", |
---|
| 1388 | palegreen: "#98fb98", |
---|
| 1389 | paleturquoise: "#afeeee", |
---|
| 1390 | palevioletred: "#db7093", |
---|
| 1391 | papayawhip: "#ffefd5", |
---|
| 1392 | peachpuff: "#ffdab9", |
---|
| 1393 | peru: "#cd853f", |
---|
| 1394 | pink: "#ffc0cb", |
---|
| 1395 | plum: "#dda0dd", |
---|
| 1396 | powderblue: "#b0e0e6", |
---|
| 1397 | purple: "#800080", |
---|
| 1398 | red: "#ff0000", |
---|
| 1399 | rosybrown: "#bc8f8f", |
---|
| 1400 | royalblue: "#4169e1", |
---|
| 1401 | saddlebrown: "#8b4513", |
---|
| 1402 | salmon: "#fa8072", |
---|
| 1403 | sandybrown: "#f4a460", |
---|
| 1404 | seagreen: "#2e8b57", |
---|
| 1405 | seashell: "#fff5ee", |
---|
| 1406 | sienna: "#a0522d", |
---|
| 1407 | silver: "#c0c0c0", |
---|
| 1408 | skyblue: "#87ceeb", |
---|
| 1409 | slateblue: "#6a5acd", |
---|
| 1410 | slategray: "#708090", |
---|
| 1411 | slategrey: "#708090", |
---|
| 1412 | snow: "#fffafa", |
---|
| 1413 | springgreen: "#00ff7f", |
---|
| 1414 | steelblue: "#4682b4", |
---|
| 1415 | tan: "#d2b48c", |
---|
| 1416 | teal: "#008080", |
---|
| 1417 | thistle: "#d8bfd8", |
---|
| 1418 | tomato: "#ff6347", |
---|
| 1419 | turquoise: "#40e0d0", |
---|
| 1420 | violet: "#ee82ee", |
---|
| 1421 | wheat: "#f5deb3", |
---|
| 1422 | white: "#ffffff", |
---|
| 1423 | whitesmoke: "#f5f5f5", |
---|
| 1424 | yellow: "#ffff00", |
---|
| 1425 | yellowgreen: "#9acd32" |
---|
| 1426 | }); |
---|
| 1427 | |
---|
| 1428 | d3_rgb_names.forEach(function(key, value) { |
---|
| 1429 | d3_rgb_names.set(key, d3_rgb_parse(value, d3_rgb, d3_hsl_rgb)); |
---|
| 1430 | }); |
---|
| 1431 | d3.hsl = function(h, s, l) { |
---|
| 1432 | return arguments.length === 1 |
---|
| 1433 | ? (h instanceof d3_Hsl ? d3_hsl(h.h, h.s, h.l) |
---|
| 1434 | : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl)) |
---|
| 1435 | : d3_hsl(+h, +s, +l); |
---|
| 1436 | }; |
---|
| 1437 | |
---|
| 1438 | function d3_hsl(h, s, l) { |
---|
| 1439 | return new d3_Hsl(h, s, l); |
---|
| 1440 | } |
---|
| 1441 | |
---|
| 1442 | function d3_Hsl(h, s, l) { |
---|
| 1443 | this.h = h; |
---|
| 1444 | this.s = s; |
---|
| 1445 | this.l = l; |
---|
| 1446 | } |
---|
| 1447 | |
---|
| 1448 | d3_Hsl.prototype.brighter = function(k) { |
---|
| 1449 | k = Math.pow(0.7, arguments.length ? k : 1); |
---|
| 1450 | return d3_hsl(this.h, this.s, this.l / k); |
---|
| 1451 | }; |
---|
| 1452 | |
---|
| 1453 | d3_Hsl.prototype.darker = function(k) { |
---|
| 1454 | k = Math.pow(0.7, arguments.length ? k : 1); |
---|
| 1455 | return d3_hsl(this.h, this.s, k * this.l); |
---|
| 1456 | }; |
---|
| 1457 | |
---|
| 1458 | d3_Hsl.prototype.rgb = function() { |
---|
| 1459 | return d3_hsl_rgb(this.h, this.s, this.l); |
---|
| 1460 | }; |
---|
| 1461 | |
---|
| 1462 | d3_Hsl.prototype.toString = function() { |
---|
| 1463 | return this.rgb().toString(); |
---|
| 1464 | }; |
---|
| 1465 | |
---|
| 1466 | function d3_hsl_rgb(h, s, l) { |
---|
| 1467 | var m1, |
---|
| 1468 | m2; |
---|
| 1469 | |
---|
| 1470 | /* Some simple corrections for h, s and l. */ |
---|
| 1471 | h = h % 360; if (h < 0) h += 360; |
---|
| 1472 | s = s < 0 ? 0 : s > 1 ? 1 : s; |
---|
| 1473 | l = l < 0 ? 0 : l > 1 ? 1 : l; |
---|
| 1474 | |
---|
| 1475 | /* From FvD 13.37, CSS Color Module Level 3 */ |
---|
| 1476 | m2 = l <= .5 ? l * (1 + s) : l + s - l * s; |
---|
| 1477 | m1 = 2 * l - m2; |
---|
| 1478 | |
---|
| 1479 | function v(h) { |
---|
| 1480 | if (h > 360) h -= 360; |
---|
| 1481 | else if (h < 0) h += 360; |
---|
| 1482 | if (h < 60) return m1 + (m2 - m1) * h / 60; |
---|
| 1483 | if (h < 180) return m2; |
---|
| 1484 | if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60; |
---|
| 1485 | return m1; |
---|
| 1486 | } |
---|
| 1487 | |
---|
| 1488 | function vv(h) { |
---|
| 1489 | return Math.round(v(h) * 255); |
---|
| 1490 | } |
---|
| 1491 | |
---|
| 1492 | return d3_rgb(vv(h + 120), vv(h), vv(h - 120)); |
---|
| 1493 | } |
---|
| 1494 | function d3_selection(groups) { |
---|
| 1495 | d3_arraySubclass(groups, d3_selectionPrototype); |
---|
| 1496 | return groups; |
---|
| 1497 | } |
---|
| 1498 | |
---|
| 1499 | var d3_select = function(s, n) { return n.querySelector(s); }, |
---|
| 1500 | d3_selectAll = function(s, n) { return n.querySelectorAll(s); }, |
---|
| 1501 | d3_selectRoot = document.documentElement, |
---|
| 1502 | d3_selectMatcher = d3_selectRoot.matchesSelector || d3_selectRoot.webkitMatchesSelector || d3_selectRoot.mozMatchesSelector || d3_selectRoot.msMatchesSelector || d3_selectRoot.oMatchesSelector, |
---|
| 1503 | d3_selectMatches = function(n, s) { return d3_selectMatcher.call(n, s); }; |
---|
| 1504 | |
---|
| 1505 | // Prefer Sizzle, if available. |
---|
| 1506 | if (typeof Sizzle === "function") { |
---|
| 1507 | d3_select = function(s, n) { return Sizzle(s, n)[0]; }; |
---|
| 1508 | d3_selectAll = function(s, n) { return Sizzle.uniqueSort(Sizzle(s, n)); }; |
---|
| 1509 | d3_selectMatches = Sizzle.matchesSelector; |
---|
| 1510 | } |
---|
| 1511 | |
---|
| 1512 | var d3_selectionPrototype = []; |
---|
| 1513 | |
---|
| 1514 | d3.selection = function() { |
---|
| 1515 | return d3_selectionRoot; |
---|
| 1516 | }; |
---|
| 1517 | |
---|
| 1518 | d3.selection.prototype = d3_selectionPrototype; |
---|
| 1519 | d3_selectionPrototype.select = function(selector) { |
---|
| 1520 | var subgroups = [], |
---|
| 1521 | subgroup, |
---|
| 1522 | subnode, |
---|
| 1523 | group, |
---|
| 1524 | node; |
---|
| 1525 | |
---|
| 1526 | if (typeof selector !== "function") selector = d3_selection_selector(selector); |
---|
| 1527 | |
---|
| 1528 | for (var j = -1, m = this.length; ++j < m;) { |
---|
| 1529 | subgroups.push(subgroup = []); |
---|
| 1530 | subgroup.parentNode = (group = this[j]).parentNode; |
---|
| 1531 | for (var i = -1, n = group.length; ++i < n;) { |
---|
| 1532 | if (node = group[i]) { |
---|
| 1533 | subgroup.push(subnode = selector.call(node, node.__data__, i)); |
---|
| 1534 | if (subnode && "__data__" in node) subnode.__data__ = node.__data__; |
---|
| 1535 | } else { |
---|
| 1536 | subgroup.push(null); |
---|
| 1537 | } |
---|
| 1538 | } |
---|
| 1539 | } |
---|
| 1540 | |
---|
| 1541 | return d3_selection(subgroups); |
---|
| 1542 | }; |
---|
| 1543 | |
---|
| 1544 | function d3_selection_selector(selector) { |
---|
| 1545 | return function() { |
---|
| 1546 | return d3_select(selector, this); |
---|
| 1547 | }; |
---|
| 1548 | } |
---|
| 1549 | d3_selectionPrototype.selectAll = function(selector) { |
---|
| 1550 | var subgroups = [], |
---|
| 1551 | subgroup, |
---|
| 1552 | node; |
---|
| 1553 | |
---|
| 1554 | if (typeof selector !== "function") selector = d3_selection_selectorAll(selector); |
---|
| 1555 | |
---|
| 1556 | for (var j = -1, m = this.length; ++j < m;) { |
---|
| 1557 | for (var group = this[j], i = -1, n = group.length; ++i < n;) { |
---|
| 1558 | if (node = group[i]) { |
---|
| 1559 | subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i))); |
---|
| 1560 | subgroup.parentNode = node; |
---|
| 1561 | } |
---|
| 1562 | } |
---|
| 1563 | } |
---|
| 1564 | |
---|
| 1565 | return d3_selection(subgroups); |
---|
| 1566 | }; |
---|
| 1567 | |
---|
| 1568 | function d3_selection_selectorAll(selector) { |
---|
| 1569 | return function() { |
---|
| 1570 | return d3_selectAll(selector, this); |
---|
| 1571 | }; |
---|
| 1572 | } |
---|
| 1573 | d3_selectionPrototype.attr = function(name, value) { |
---|
| 1574 | name = d3.ns.qualify(name); |
---|
| 1575 | |
---|
| 1576 | // If no value is specified, return the first value. |
---|
| 1577 | if (arguments.length < 2) { |
---|
| 1578 | var node = this.node(); |
---|
| 1579 | return name.local |
---|
| 1580 | ? node.getAttributeNS(name.space, name.local) |
---|
| 1581 | : node.getAttribute(name); |
---|
| 1582 | } |
---|
| 1583 | |
---|
| 1584 | function attrNull() { |
---|
| 1585 | this.removeAttribute(name); |
---|
| 1586 | } |
---|
| 1587 | |
---|
| 1588 | function attrNullNS() { |
---|
| 1589 | this.removeAttributeNS(name.space, name.local); |
---|
| 1590 | } |
---|
| 1591 | |
---|
| 1592 | function attrConstant() { |
---|
| 1593 | this.setAttribute(name, value); |
---|
| 1594 | } |
---|
| 1595 | |
---|
| 1596 | function attrConstantNS() { |
---|
| 1597 | this.setAttributeNS(name.space, name.local, value); |
---|
| 1598 | } |
---|
| 1599 | |
---|
| 1600 | function attrFunction() { |
---|
| 1601 | var x = value.apply(this, arguments); |
---|
| 1602 | if (x == null) this.removeAttribute(name); |
---|
| 1603 | else this.setAttribute(name, x); |
---|
| 1604 | } |
---|
| 1605 | |
---|
| 1606 | function attrFunctionNS() { |
---|
| 1607 | var x = value.apply(this, arguments); |
---|
| 1608 | if (x == null) this.removeAttributeNS(name.space, name.local); |
---|
| 1609 | else this.setAttributeNS(name.space, name.local, x); |
---|
| 1610 | } |
---|
| 1611 | |
---|
| 1612 | return this.each(value == null |
---|
| 1613 | ? (name.local ? attrNullNS : attrNull) : (typeof value === "function" |
---|
| 1614 | ? (name.local ? attrFunctionNS : attrFunction) |
---|
| 1615 | : (name.local ? attrConstantNS : attrConstant))); |
---|
| 1616 | }; |
---|
| 1617 | d3_selectionPrototype.classed = function(name, value) { |
---|
| 1618 | var names = name.split(d3_selection_classedWhitespace), |
---|
| 1619 | n = names.length, |
---|
| 1620 | i = -1; |
---|
| 1621 | if (arguments.length > 1) { |
---|
| 1622 | while (++i < n) d3_selection_classed.call(this, names[i], value); |
---|
| 1623 | return this; |
---|
| 1624 | } else { |
---|
| 1625 | while (++i < n) if (!d3_selection_classed.call(this, names[i])) return false; |
---|
| 1626 | return true; |
---|
| 1627 | } |
---|
| 1628 | }; |
---|
| 1629 | |
---|
| 1630 | var d3_selection_classedWhitespace = /\s+/g; |
---|
| 1631 | |
---|
| 1632 | function d3_selection_classed(name, value) { |
---|
| 1633 | var re = new RegExp("(^|\\s+)" + d3.requote(name) + "(\\s+|$)", "g"); |
---|
| 1634 | |
---|
| 1635 | // If no value is specified, return the first value. |
---|
| 1636 | if (arguments.length < 2) { |
---|
| 1637 | var node = this.node(); |
---|
| 1638 | if (c = node.classList) return c.contains(name); |
---|
| 1639 | var c = node.className; |
---|
| 1640 | re.lastIndex = 0; |
---|
| 1641 | return re.test(c.baseVal != null ? c.baseVal : c); |
---|
| 1642 | } |
---|
| 1643 | |
---|
| 1644 | function classedAdd() { |
---|
| 1645 | if (c = this.classList) return c.add(name); |
---|
| 1646 | var c = this.className, |
---|
| 1647 | cb = c.baseVal != null, |
---|
| 1648 | cv = cb ? c.baseVal : c; |
---|
| 1649 | re.lastIndex = 0; |
---|
| 1650 | if (!re.test(cv)) { |
---|
| 1651 | cv = d3_collapse(cv + " " + name); |
---|
| 1652 | if (cb) c.baseVal = cv; |
---|
| 1653 | else this.className = cv; |
---|
| 1654 | } |
---|
| 1655 | } |
---|
| 1656 | |
---|
| 1657 | function classedRemove() { |
---|
| 1658 | if (c = this.classList) return c.remove(name); |
---|
| 1659 | var c = this.className, |
---|
| 1660 | cb = c.baseVal != null, |
---|
| 1661 | cv = cb ? c.baseVal : c; |
---|
| 1662 | cv = d3_collapse(cv.replace(re, " ")); |
---|
| 1663 | if (cb) c.baseVal = cv; |
---|
| 1664 | else this.className = cv; |
---|
| 1665 | } |
---|
| 1666 | |
---|
| 1667 | function classedFunction() { |
---|
| 1668 | (value.apply(this, arguments) |
---|
| 1669 | ? classedAdd |
---|
| 1670 | : classedRemove).call(this); |
---|
| 1671 | } |
---|
| 1672 | |
---|
| 1673 | return this.each(typeof value === "function" |
---|
| 1674 | ? classedFunction : value |
---|
| 1675 | ? classedAdd |
---|
| 1676 | : classedRemove); |
---|
| 1677 | } |
---|
| 1678 | d3_selectionPrototype.style = function(name, value, priority) { |
---|
| 1679 | if (arguments.length < 3) priority = ""; |
---|
| 1680 | |
---|
| 1681 | // If no value is specified, return the first value. |
---|
| 1682 | if (arguments.length < 2) return window |
---|
| 1683 | .getComputedStyle(this.node(), null) |
---|
| 1684 | .getPropertyValue(name); |
---|
| 1685 | |
---|
| 1686 | function styleNull() { |
---|
| 1687 | this.style.removeProperty(name); |
---|
| 1688 | } |
---|
| 1689 | |
---|
| 1690 | function styleConstant() { |
---|
| 1691 | this.style.setProperty(name, value, priority); |
---|
| 1692 | } |
---|
| 1693 | |
---|
| 1694 | function styleFunction() { |
---|
| 1695 | var x = value.apply(this, arguments); |
---|
| 1696 | if (x == null) this.style.removeProperty(name); |
---|
| 1697 | else this.style.setProperty(name, x, priority); |
---|
| 1698 | } |
---|
| 1699 | |
---|
| 1700 | return this.each(value == null |
---|
| 1701 | ? styleNull : (typeof value === "function" |
---|
| 1702 | ? styleFunction : styleConstant)); |
---|
| 1703 | }; |
---|
| 1704 | d3_selectionPrototype.property = function(name, value) { |
---|
| 1705 | |
---|
| 1706 | // If no value is specified, return the first value. |
---|
| 1707 | if (arguments.length < 2) return this.node()[name]; |
---|
| 1708 | |
---|
| 1709 | function propertyNull() { |
---|
| 1710 | delete this[name]; |
---|
| 1711 | } |
---|
| 1712 | |
---|
| 1713 | function propertyConstant() { |
---|
| 1714 | this[name] = value; |
---|
| 1715 | } |
---|
| 1716 | |
---|
| 1717 | function propertyFunction() { |
---|
| 1718 | var x = value.apply(this, arguments); |
---|
| 1719 | if (x == null) delete this[name]; |
---|
| 1720 | else this[name] = x; |
---|
| 1721 | } |
---|
| 1722 | |
---|
| 1723 | return this.each(value == null |
---|
| 1724 | ? propertyNull : (typeof value === "function" |
---|
| 1725 | ? propertyFunction : propertyConstant)); |
---|
| 1726 | }; |
---|
| 1727 | d3_selectionPrototype.text = function(value) { |
---|
| 1728 | return arguments.length < 1 |
---|
| 1729 | ? this.node().textContent : this.each(typeof value === "function" |
---|
| 1730 | ? function() { var v = value.apply(this, arguments); this.textContent = v == null ? "" : v; } : value == null |
---|
| 1731 | ? function() { this.textContent = ""; } |
---|
| 1732 | : function() { this.textContent = value; }); |
---|
| 1733 | }; |
---|
| 1734 | d3_selectionPrototype.html = function(value) { |
---|
| 1735 | return arguments.length < 1 |
---|
| 1736 | ? this.node().innerHTML : this.each(typeof value === "function" |
---|
| 1737 | ? function() { var v = value.apply(this, arguments); this.innerHTML = v == null ? "" : v; } : value == null |
---|
| 1738 | ? function() { this.innerHTML = ""; } |
---|
| 1739 | : function() { this.innerHTML = value; }); |
---|
| 1740 | }; |
---|
| 1741 | // TODO append(node)? |
---|
| 1742 | // TODO append(function)? |
---|
| 1743 | d3_selectionPrototype.append = function(name) { |
---|
| 1744 | name = d3.ns.qualify(name); |
---|
| 1745 | |
---|
| 1746 | function append() { |
---|
| 1747 | return this.appendChild(document.createElementNS(this.namespaceURI, name)); |
---|
| 1748 | } |
---|
| 1749 | |
---|
| 1750 | function appendNS() { |
---|
| 1751 | return this.appendChild(document.createElementNS(name.space, name.local)); |
---|
| 1752 | } |
---|
| 1753 | |
---|
| 1754 | return this.select(name.local ? appendNS : append); |
---|
| 1755 | }; |
---|
| 1756 | // TODO insert(node, function)? |
---|
| 1757 | // TODO insert(function, string)? |
---|
| 1758 | // TODO insert(function, function)? |
---|
| 1759 | d3_selectionPrototype.insert = function(name, before) { |
---|
| 1760 | name = d3.ns.qualify(name); |
---|
| 1761 | |
---|
| 1762 | function insert() { |
---|
| 1763 | return this.insertBefore( |
---|
| 1764 | document.createElementNS(this.namespaceURI, name), |
---|
| 1765 | d3_select(before, this)); |
---|
| 1766 | } |
---|
| 1767 | |
---|
| 1768 | function insertNS() { |
---|
| 1769 | return this.insertBefore( |
---|
| 1770 | document.createElementNS(name.space, name.local), |
---|
| 1771 | d3_select(before, this)); |
---|
| 1772 | } |
---|
| 1773 | |
---|
| 1774 | return this.select(name.local ? insertNS : insert); |
---|
| 1775 | }; |
---|
| 1776 | // TODO remove(selector)? |
---|
| 1777 | // TODO remove(node)? |
---|
| 1778 | // TODO remove(function)? |
---|
| 1779 | d3_selectionPrototype.remove = function() { |
---|
| 1780 | return this.each(function() { |
---|
| 1781 | var parent = this.parentNode; |
---|
| 1782 | if (parent) parent.removeChild(this); |
---|
| 1783 | }); |
---|
| 1784 | }; |
---|
| 1785 | d3_selectionPrototype.data = function(value, key) { |
---|
| 1786 | var i = -1, |
---|
| 1787 | n = this.length, |
---|
| 1788 | group, |
---|
| 1789 | node; |
---|
| 1790 | |
---|
| 1791 | // If no value is specified, return the first value. |
---|
| 1792 | if (!arguments.length) { |
---|
| 1793 | value = new Array(n = (group = this[0]).length); |
---|
| 1794 | while (++i < n) { |
---|
| 1795 | if (node = group[i]) { |
---|
| 1796 | value[i] = node.__data__; |
---|
| 1797 | } |
---|
| 1798 | } |
---|
| 1799 | return value; |
---|
| 1800 | } |
---|
| 1801 | |
---|
| 1802 | function bind(group, groupData) { |
---|
| 1803 | var i, |
---|
| 1804 | n = group.length, |
---|
| 1805 | m = groupData.length, |
---|
| 1806 | n0 = Math.min(n, m), |
---|
| 1807 | n1 = Math.max(n, m), |
---|
| 1808 | updateNodes = [], |
---|
| 1809 | enterNodes = [], |
---|
| 1810 | exitNodes = [], |
---|
| 1811 | node, |
---|
| 1812 | nodeData; |
---|
| 1813 | |
---|
| 1814 | if (key) { |
---|
| 1815 | var nodeByKeyValue = new d3_Map, |
---|
| 1816 | keyValues = [], |
---|
| 1817 | keyValue, |
---|
| 1818 | j = groupData.length; |
---|
| 1819 | |
---|
| 1820 | for (i = -1; ++i < n;) { |
---|
| 1821 | keyValue = key.call(node = group[i], node.__data__, i); |
---|
| 1822 | if (nodeByKeyValue.has(keyValue)) { |
---|
| 1823 | exitNodes[j++] = node; // duplicate key |
---|
| 1824 | } else { |
---|
| 1825 | nodeByKeyValue.set(keyValue, node); |
---|
| 1826 | } |
---|
| 1827 | keyValues.push(keyValue); |
---|
| 1828 | } |
---|
| 1829 | |
---|
| 1830 | for (i = -1; ++i < m;) { |
---|
| 1831 | keyValue = key.call(groupData, nodeData = groupData[i], i) |
---|
| 1832 | if (nodeByKeyValue.has(keyValue)) { |
---|
| 1833 | updateNodes[i] = node = nodeByKeyValue.get(keyValue); |
---|
| 1834 | node.__data__ = nodeData; |
---|
| 1835 | enterNodes[i] = exitNodes[i] = null; |
---|
| 1836 | } else { |
---|
| 1837 | enterNodes[i] = d3_selection_dataNode(nodeData); |
---|
| 1838 | updateNodes[i] = exitNodes[i] = null; |
---|
| 1839 | } |
---|
| 1840 | nodeByKeyValue.remove(keyValue); |
---|
| 1841 | } |
---|
| 1842 | |
---|
| 1843 | for (i = -1; ++i < n;) { |
---|
| 1844 | if (nodeByKeyValue.has(keyValues[i])) { |
---|
| 1845 | exitNodes[i] = group[i]; |
---|
| 1846 | } |
---|
| 1847 | } |
---|
| 1848 | } else { |
---|
| 1849 | for (i = -1; ++i < n0;) { |
---|
| 1850 | node = group[i]; |
---|
| 1851 | nodeData = groupData[i]; |
---|
| 1852 | if (node) { |
---|
| 1853 | node.__data__ = nodeData; |
---|
| 1854 | updateNodes[i] = node; |
---|
| 1855 | enterNodes[i] = exitNodes[i] = null; |
---|
| 1856 | } else { |
---|
| 1857 | enterNodes[i] = d3_selection_dataNode(nodeData); |
---|
| 1858 | updateNodes[i] = exitNodes[i] = null; |
---|
| 1859 | } |
---|
| 1860 | } |
---|
| 1861 | for (; i < m; ++i) { |
---|
| 1862 | enterNodes[i] = d3_selection_dataNode(groupData[i]); |
---|
| 1863 | updateNodes[i] = exitNodes[i] = null; |
---|
| 1864 | } |
---|
| 1865 | for (; i < n1; ++i) { |
---|
| 1866 | exitNodes[i] = group[i]; |
---|
| 1867 | enterNodes[i] = updateNodes[i] = null; |
---|
| 1868 | } |
---|
| 1869 | } |
---|
| 1870 | |
---|
| 1871 | enterNodes.update |
---|
| 1872 | = updateNodes; |
---|
| 1873 | |
---|
| 1874 | enterNodes.parentNode |
---|
| 1875 | = updateNodes.parentNode |
---|
| 1876 | = exitNodes.parentNode |
---|
| 1877 | = group.parentNode; |
---|
| 1878 | |
---|
| 1879 | enter.push(enterNodes); |
---|
| 1880 | update.push(updateNodes); |
---|
| 1881 | exit.push(exitNodes); |
---|
| 1882 | } |
---|
| 1883 | |
---|
| 1884 | var enter = d3_selection_enter([]), |
---|
| 1885 | update = d3_selection([]), |
---|
| 1886 | exit = d3_selection([]); |
---|
| 1887 | |
---|
| 1888 | if (typeof value === "function") { |
---|
| 1889 | while (++i < n) { |
---|
| 1890 | bind(group = this[i], value.call(group, group.parentNode.__data__, i)); |
---|
| 1891 | } |
---|
| 1892 | } else { |
---|
| 1893 | while (++i < n) { |
---|
| 1894 | bind(group = this[i], value); |
---|
| 1895 | } |
---|
| 1896 | } |
---|
| 1897 | |
---|
| 1898 | update.enter = function() { return enter; }; |
---|
| 1899 | update.exit = function() { return exit; }; |
---|
| 1900 | return update; |
---|
| 1901 | }; |
---|
| 1902 | |
---|
| 1903 | function d3_selection_dataNode(data) { |
---|
| 1904 | return {__data__: data}; |
---|
| 1905 | } |
---|
| 1906 | d3_selectionPrototype.datum = |
---|
| 1907 | d3_selectionPrototype.map = function(value) { |
---|
| 1908 | return arguments.length < 1 |
---|
| 1909 | ? this.property("__data__") |
---|
| 1910 | : this.property("__data__", value); |
---|
| 1911 | }; |
---|
| 1912 | d3_selectionPrototype.filter = function(filter) { |
---|
| 1913 | var subgroups = [], |
---|
| 1914 | subgroup, |
---|
| 1915 | group, |
---|
| 1916 | node; |
---|
| 1917 | |
---|
| 1918 | if (typeof filter !== "function") filter = d3_selection_filter(filter); |
---|
| 1919 | |
---|
| 1920 | for (var j = 0, m = this.length; j < m; j++) { |
---|
| 1921 | subgroups.push(subgroup = []); |
---|
| 1922 | subgroup.parentNode = (group = this[j]).parentNode; |
---|
| 1923 | for (var i = 0, n = group.length; i < n; i++) { |
---|
| 1924 | if ((node = group[i]) && filter.call(node, node.__data__, i)) { |
---|
| 1925 | subgroup.push(node); |
---|
| 1926 | } |
---|
| 1927 | } |
---|
| 1928 | } |
---|
| 1929 | |
---|
| 1930 | return d3_selection(subgroups); |
---|
| 1931 | }; |
---|
| 1932 | |
---|
| 1933 | function d3_selection_filter(selector) { |
---|
| 1934 | return function() { |
---|
| 1935 | return d3_selectMatches(this, selector); |
---|
| 1936 | }; |
---|
| 1937 | } |
---|
| 1938 | d3_selectionPrototype.order = function() { |
---|
| 1939 | for (var j = -1, m = this.length; ++j < m;) { |
---|
| 1940 | for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0;) { |
---|
| 1941 | if (node = group[i]) { |
---|
| 1942 | if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next); |
---|
| 1943 | next = node; |
---|
| 1944 | } |
---|
| 1945 | } |
---|
| 1946 | } |
---|
| 1947 | return this; |
---|
| 1948 | }; |
---|
| 1949 | d3_selectionPrototype.sort = function(comparator) { |
---|
| 1950 | comparator = d3_selection_sortComparator.apply(this, arguments); |
---|
| 1951 | for (var j = -1, m = this.length; ++j < m;) this[j].sort(comparator); |
---|
| 1952 | return this.order(); |
---|
| 1953 | }; |
---|
| 1954 | |
---|
| 1955 | function d3_selection_sortComparator(comparator) { |
---|
| 1956 | if (!arguments.length) comparator = d3.ascending; |
---|
| 1957 | return function(a, b) { |
---|
| 1958 | return comparator(a && a.__data__, b && b.__data__); |
---|
| 1959 | }; |
---|
| 1960 | } |
---|
| 1961 | // type can be namespaced, e.g., "click.foo" |
---|
| 1962 | // listener can be null for removal |
---|
| 1963 | d3_selectionPrototype.on = function(type, listener, capture) { |
---|
| 1964 | if (arguments.length < 3) capture = false; |
---|
| 1965 | |
---|
| 1966 | // parse the type specifier |
---|
| 1967 | var name = "__on" + type, i = type.indexOf("."); |
---|
| 1968 | if (i > 0) type = type.substring(0, i); |
---|
| 1969 | |
---|
| 1970 | // if called with only one argument, return the current listener |
---|
| 1971 | if (arguments.length < 2) return (i = this.node()[name]) && i._; |
---|
| 1972 | |
---|
| 1973 | // remove the old event listener, and add the new event listener |
---|
| 1974 | return this.each(function(d, i) { |
---|
| 1975 | var node = this, |
---|
| 1976 | o = node[name]; |
---|
| 1977 | |
---|
| 1978 | // remove the old listener, if any (using the previously-set capture) |
---|
| 1979 | if (o) { |
---|
| 1980 | node.removeEventListener(type, o, o.$); |
---|
| 1981 | delete node[name]; |
---|
| 1982 | } |
---|
| 1983 | |
---|
| 1984 | // add the new listener, if any (remembering the capture flag) |
---|
| 1985 | if (listener) { |
---|
| 1986 | node.addEventListener(type, node[name] = l, l.$ = capture); |
---|
| 1987 | l._ = listener; // stash the unwrapped listener for get |
---|
| 1988 | } |
---|
| 1989 | |
---|
| 1990 | // wrapped event listener that preserves i |
---|
| 1991 | function l(e) { |
---|
| 1992 | var o = d3.event; // Events can be reentrant (e.g., focus). |
---|
| 1993 | d3.event = e; |
---|
| 1994 | try { |
---|
| 1995 | listener.call(node, node.__data__, i); |
---|
| 1996 | } finally { |
---|
| 1997 | d3.event = o; |
---|
| 1998 | } |
---|
| 1999 | } |
---|
| 2000 | }); |
---|
| 2001 | }; |
---|
| 2002 | d3_selectionPrototype.each = function(callback) { |
---|
| 2003 | for (var j = -1, m = this.length; ++j < m;) { |
---|
| 2004 | for (var group = this[j], i = -1, n = group.length; ++i < n;) { |
---|
| 2005 | var node = group[i]; |
---|
| 2006 | if (node) callback.call(node, node.__data__, i, j); |
---|
| 2007 | } |
---|
| 2008 | } |
---|
| 2009 | return this; |
---|
| 2010 | }; |
---|
| 2011 | // |
---|
| 2012 | // Note: assigning to the arguments array simultaneously changes the value of |
---|
| 2013 | // the corresponding argument! |
---|
| 2014 | // |
---|
| 2015 | // TODO The `this` argument probably shouldn't be the first argument to the |
---|
| 2016 | // callback, anyway, since it's redundant. However, that will require a major |
---|
| 2017 | // version bump due to backwards compatibility, so I'm not changing it right |
---|
| 2018 | // away. |
---|
| 2019 | // |
---|
| 2020 | d3_selectionPrototype.call = function(callback) { |
---|
| 2021 | callback.apply(this, (arguments[0] = this, arguments)); |
---|
| 2022 | return this; |
---|
| 2023 | }; |
---|
| 2024 | d3_selectionPrototype.empty = function() { |
---|
| 2025 | return !this.node(); |
---|
| 2026 | }; |
---|
| 2027 | d3_selectionPrototype.node = function(callback) { |
---|
| 2028 | for (var j = 0, m = this.length; j < m; j++) { |
---|
| 2029 | for (var group = this[j], i = 0, n = group.length; i < n; i++) { |
---|
| 2030 | var node = group[i]; |
---|
| 2031 | if (node) return node; |
---|
| 2032 | } |
---|
| 2033 | } |
---|
| 2034 | return null; |
---|
| 2035 | }; |
---|
| 2036 | d3_selectionPrototype.transition = function() { |
---|
| 2037 | var subgroups = [], |
---|
| 2038 | subgroup, |
---|
| 2039 | node; |
---|
| 2040 | |
---|
| 2041 | for (var j = -1, m = this.length; ++j < m;) { |
---|
| 2042 | subgroups.push(subgroup = []); |
---|
| 2043 | for (var group = this[j], i = -1, n = group.length; ++i < n;) { |
---|
| 2044 | subgroup.push((node = group[i]) ? {node: node, delay: d3_transitionDelay, duration: d3_transitionDuration} : null); |
---|
| 2045 | } |
---|
| 2046 | } |
---|
| 2047 | |
---|
| 2048 | return d3_transition(subgroups, d3_transitionId || ++d3_transitionNextId, Date.now()); |
---|
| 2049 | }; |
---|
| 2050 | var d3_selectionRoot = d3_selection([[document]]); |
---|
| 2051 | |
---|
| 2052 | d3_selectionRoot[0].parentNode = d3_selectRoot; |
---|
| 2053 | |
---|
| 2054 | // TODO fast singleton implementation! |
---|
| 2055 | // TODO select(function) |
---|
| 2056 | d3.select = function(selector) { |
---|
| 2057 | return typeof selector === "string" |
---|
| 2058 | ? d3_selectionRoot.select(selector) |
---|
| 2059 | : d3_selection([[selector]]); // assume node |
---|
| 2060 | }; |
---|
| 2061 | |
---|
| 2062 | // TODO selectAll(function) |
---|
| 2063 | d3.selectAll = function(selector) { |
---|
| 2064 | return typeof selector === "string" |
---|
| 2065 | ? d3_selectionRoot.selectAll(selector) |
---|
| 2066 | : d3_selection([d3_array(selector)]); // assume node[] |
---|
| 2067 | }; |
---|
| 2068 | function d3_selection_enter(selection) { |
---|
| 2069 | d3_arraySubclass(selection, d3_selection_enterPrototype); |
---|
| 2070 | return selection; |
---|
| 2071 | } |
---|
| 2072 | |
---|
| 2073 | var d3_selection_enterPrototype = []; |
---|
| 2074 | |
---|
| 2075 | d3.selection.enter = d3_selection_enter; |
---|
| 2076 | d3.selection.enter.prototype = d3_selection_enterPrototype; |
---|
| 2077 | |
---|
| 2078 | d3_selection_enterPrototype.append = d3_selectionPrototype.append; |
---|
| 2079 | d3_selection_enterPrototype.insert = d3_selectionPrototype.insert; |
---|
| 2080 | d3_selection_enterPrototype.empty = d3_selectionPrototype.empty; |
---|
| 2081 | d3_selection_enterPrototype.node = d3_selectionPrototype.node; |
---|
| 2082 | d3_selection_enterPrototype.select = function(selector) { |
---|
| 2083 | var subgroups = [], |
---|
| 2084 | subgroup, |
---|
| 2085 | subnode, |
---|
| 2086 | upgroup, |
---|
| 2087 | group, |
---|
| 2088 | node; |
---|
| 2089 | |
---|
| 2090 | for (var j = -1, m = this.length; ++j < m;) { |
---|
| 2091 | upgroup = (group = this[j]).update; |
---|
| 2092 | subgroups.push(subgroup = []); |
---|
| 2093 | subgroup.parentNode = group.parentNode; |
---|
| 2094 | for (var i = -1, n = group.length; ++i < n;) { |
---|
| 2095 | if (node = group[i]) { |
---|
| 2096 | subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i)); |
---|
| 2097 | subnode.__data__ = node.__data__; |
---|
| 2098 | } else { |
---|
| 2099 | subgroup.push(null); |
---|
| 2100 | } |
---|
| 2101 | } |
---|
| 2102 | } |
---|
| 2103 | |
---|
| 2104 | return d3_selection(subgroups); |
---|
| 2105 | }; |
---|
| 2106 | function d3_transition(groups, id, time) { |
---|
| 2107 | d3_arraySubclass(groups, d3_transitionPrototype); |
---|
| 2108 | |
---|
| 2109 | var tweens = new d3_Map, |
---|
| 2110 | event = d3.dispatch("start", "end"), |
---|
| 2111 | ease = d3_transitionEase; |
---|
| 2112 | |
---|
| 2113 | groups.id = id; |
---|
| 2114 | |
---|
| 2115 | groups.time = time; |
---|
| 2116 | |
---|
| 2117 | groups.tween = function(name, tween) { |
---|
| 2118 | if (arguments.length < 2) return tweens.get(name); |
---|
| 2119 | if (tween == null) tweens.remove(name); |
---|
| 2120 | else tweens.set(name, tween); |
---|
| 2121 | return groups; |
---|
| 2122 | }; |
---|
| 2123 | |
---|
| 2124 | groups.ease = function(value) { |
---|
| 2125 | if (!arguments.length) return ease; |
---|
| 2126 | ease = typeof value === "function" ? value : d3.ease.apply(d3, arguments); |
---|
| 2127 | return groups; |
---|
| 2128 | }; |
---|
| 2129 | |
---|
| 2130 | groups.each = function(type, listener) { |
---|
| 2131 | if (arguments.length < 2) return d3_transition_each.call(groups, type); |
---|
| 2132 | event.on(type, listener); |
---|
| 2133 | return groups; |
---|
| 2134 | }; |
---|
| 2135 | |
---|
| 2136 | d3.timer(function(elapsed) { |
---|
| 2137 | groups.each(function(d, i, j) { |
---|
| 2138 | var tweened = [], |
---|
| 2139 | node = this, |
---|
| 2140 | delay = groups[j][i].delay, |
---|
| 2141 | duration = groups[j][i].duration, |
---|
| 2142 | lock = node.__transition__ || (node.__transition__ = {active: 0, count: 0}); |
---|
| 2143 | |
---|
| 2144 | ++lock.count; |
---|
| 2145 | |
---|
| 2146 | delay <= elapsed ? start(elapsed) : d3.timer(start, delay, time); |
---|
| 2147 | |
---|
| 2148 | function start(elapsed) { |
---|
| 2149 | if (lock.active > id) return stop(); |
---|
| 2150 | lock.active = id; |
---|
| 2151 | |
---|
| 2152 | tweens.forEach(function(key, value) { |
---|
| 2153 | if (tween = value.call(node, d, i)) { |
---|
| 2154 | tweened.push(tween); |
---|
| 2155 | } |
---|
| 2156 | }); |
---|
| 2157 | |
---|
| 2158 | event.start.call(node, d, i); |
---|
| 2159 | if (!tick(elapsed)) d3.timer(tick, 0, time); |
---|
| 2160 | return 1; |
---|
| 2161 | } |
---|
| 2162 | |
---|
| 2163 | function tick(elapsed) { |
---|
| 2164 | if (lock.active !== id) return stop(); |
---|
| 2165 | |
---|
| 2166 | var t = (elapsed - delay) / duration, |
---|
| 2167 | e = ease(t), |
---|
| 2168 | n = tweened.length; |
---|
| 2169 | |
---|
| 2170 | while (n > 0) { |
---|
| 2171 | tweened[--n].call(node, e); |
---|
| 2172 | } |
---|
| 2173 | |
---|
| 2174 | if (t >= 1) { |
---|
| 2175 | stop(); |
---|
| 2176 | d3_transitionId = id; |
---|
| 2177 | event.end.call(node, d, i); |
---|
| 2178 | d3_transitionId = 0; |
---|
| 2179 | return 1; |
---|
| 2180 | } |
---|
| 2181 | } |
---|
| 2182 | |
---|
| 2183 | function stop() { |
---|
| 2184 | if (!--lock.count) delete node.__transition__; |
---|
| 2185 | return 1; |
---|
| 2186 | } |
---|
| 2187 | }); |
---|
| 2188 | return 1; |
---|
| 2189 | }, 0, time); |
---|
| 2190 | |
---|
| 2191 | return groups; |
---|
| 2192 | } |
---|
| 2193 | |
---|
| 2194 | var d3_transitionRemove = {}; |
---|
| 2195 | |
---|
| 2196 | function d3_transitionNull(d, i, a) { |
---|
| 2197 | return a != "" && d3_transitionRemove; |
---|
| 2198 | } |
---|
| 2199 | |
---|
| 2200 | function d3_transitionTween(name, b) { |
---|
| 2201 | var interpolate = d3_interpolateByName(name); |
---|
| 2202 | |
---|
| 2203 | function transitionFunction(d, i, a) { |
---|
| 2204 | var v = b.call(this, d, i); |
---|
| 2205 | return v == null |
---|
| 2206 | ? a != "" && d3_transitionRemove |
---|
| 2207 | : a != v && interpolate(a, v); |
---|
| 2208 | } |
---|
| 2209 | |
---|
| 2210 | function transitionString(d, i, a) { |
---|
| 2211 | return a != b && interpolate(a, b); |
---|
| 2212 | } |
---|
| 2213 | |
---|
| 2214 | return typeof b === "function" ? transitionFunction |
---|
| 2215 | : b == null ? d3_transitionNull |
---|
| 2216 | : (b += "", transitionString); |
---|
| 2217 | } |
---|
| 2218 | |
---|
| 2219 | var d3_transitionPrototype = [], |
---|
| 2220 | d3_transitionNextId = 0, |
---|
| 2221 | d3_transitionId = 0, |
---|
| 2222 | d3_transitionDefaultDelay = 0, |
---|
| 2223 | d3_transitionDefaultDuration = 250, |
---|
| 2224 | d3_transitionDefaultEase = d3.ease("cubic-in-out"), |
---|
| 2225 | d3_transitionDelay = d3_transitionDefaultDelay, |
---|
| 2226 | d3_transitionDuration = d3_transitionDefaultDuration, |
---|
| 2227 | d3_transitionEase = d3_transitionDefaultEase; |
---|
| 2228 | |
---|
| 2229 | d3_transitionPrototype.call = d3_selectionPrototype.call; |
---|
| 2230 | |
---|
| 2231 | d3.transition = function(selection) { |
---|
| 2232 | return arguments.length |
---|
| 2233 | ? (d3_transitionId ? selection.transition() : selection) |
---|
| 2234 | : d3_selectionRoot.transition(); |
---|
| 2235 | }; |
---|
| 2236 | |
---|
| 2237 | d3.transition.prototype = d3_transitionPrototype; |
---|
| 2238 | d3_transitionPrototype.select = function(selector) { |
---|
| 2239 | var subgroups = [], |
---|
| 2240 | subgroup, |
---|
| 2241 | subnode, |
---|
| 2242 | node; |
---|
| 2243 | |
---|
| 2244 | if (typeof selector !== "function") selector = d3_selection_selector(selector); |
---|
| 2245 | |
---|
| 2246 | for (var j = -1, m = this.length; ++j < m;) { |
---|
| 2247 | subgroups.push(subgroup = []); |
---|
| 2248 | for (var group = this[j], i = -1, n = group.length; ++i < n;) { |
---|
| 2249 | if ((node = group[i]) && (subnode = selector.call(node.node, node.node.__data__, i))) { |
---|
| 2250 | if ("__data__" in node.node) subnode.__data__ = node.node.__data__; |
---|
| 2251 | subgroup.push({node: subnode, delay: node.delay, duration: node.duration}); |
---|
| 2252 | } else { |
---|
| 2253 | subgroup.push(null); |
---|
| 2254 | } |
---|
| 2255 | } |
---|
| 2256 | } |
---|
| 2257 | |
---|
| 2258 | return d3_transition(subgroups, this.id, this.time).ease(this.ease()); |
---|
| 2259 | }; |
---|
| 2260 | d3_transitionPrototype.selectAll = function(selector) { |
---|
| 2261 | var subgroups = [], |
---|
| 2262 | subgroup, |
---|
| 2263 | subnodes, |
---|
| 2264 | node; |
---|
| 2265 | |
---|
| 2266 | if (typeof selector !== "function") selector = d3_selection_selectorAll(selector); |
---|
| 2267 | |
---|
| 2268 | for (var j = -1, m = this.length; ++j < m;) { |
---|
| 2269 | for (var group = this[j], i = -1, n = group.length; ++i < n;) { |
---|
| 2270 | if (node = group[i]) { |
---|
| 2271 | subnodes = selector.call(node.node, node.node.__data__, i); |
---|
| 2272 | subgroups.push(subgroup = []); |
---|
| 2273 | for (var k = -1, o = subnodes.length; ++k < o;) { |
---|
| 2274 | subgroup.push({node: subnodes[k], delay: node.delay, duration: node.duration}); |
---|
| 2275 | } |
---|
| 2276 | } |
---|
| 2277 | } |
---|
| 2278 | } |
---|
| 2279 | |
---|
| 2280 | return d3_transition(subgroups, this.id, this.time).ease(this.ease()); |
---|
| 2281 | }; |
---|
| 2282 | d3_transitionPrototype.attr = function(name, value) { |
---|
| 2283 | return this.attrTween(name, d3_transitionTween(name, value)); |
---|
| 2284 | }; |
---|
| 2285 | |
---|
| 2286 | d3_transitionPrototype.attrTween = function(nameNS, tween) { |
---|
| 2287 | var name = d3.ns.qualify(nameNS); |
---|
| 2288 | |
---|
| 2289 | function attrTween(d, i) { |
---|
| 2290 | var f = tween.call(this, d, i, this.getAttribute(name)); |
---|
| 2291 | return f === d3_transitionRemove |
---|
| 2292 | ? (this.removeAttribute(name), null) |
---|
| 2293 | : f && function(t) { this.setAttribute(name, f(t)); }; |
---|
| 2294 | } |
---|
| 2295 | |
---|
| 2296 | function attrTweenNS(d, i) { |
---|
| 2297 | var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local)); |
---|
| 2298 | return f === d3_transitionRemove |
---|
| 2299 | ? (this.removeAttributeNS(name.space, name.local), null) |
---|
| 2300 | : f && function(t) { this.setAttributeNS(name.space, name.local, f(t)); }; |
---|
| 2301 | } |
---|
| 2302 | |
---|
| 2303 | return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween); |
---|
| 2304 | }; |
---|
| 2305 | d3_transitionPrototype.style = function(name, value, priority) { |
---|
| 2306 | if (arguments.length < 3) priority = ""; |
---|
| 2307 | return this.styleTween(name, d3_transitionTween(name, value), priority); |
---|
| 2308 | }; |
---|
| 2309 | |
---|
| 2310 | d3_transitionPrototype.styleTween = function(name, tween, priority) { |
---|
| 2311 | if (arguments.length < 3) priority = ""; |
---|
| 2312 | return this.tween("style." + name, function(d, i) { |
---|
| 2313 | var f = tween.call(this, d, i, window.getComputedStyle(this, null).getPropertyValue(name)); |
---|
| 2314 | return f === d3_transitionRemove |
---|
| 2315 | ? (this.style.removeProperty(name), null) |
---|
| 2316 | : f && function(t) { this.style.setProperty(name, f(t), priority); }; |
---|
| 2317 | }); |
---|
| 2318 | }; |
---|
| 2319 | d3_transitionPrototype.text = function(value) { |
---|
| 2320 | return this.tween("text", function(d, i) { |
---|
| 2321 | this.textContent = typeof value === "function" |
---|
| 2322 | ? value.call(this, d, i) |
---|
| 2323 | : value; |
---|
| 2324 | }); |
---|
| 2325 | }; |
---|
| 2326 | d3_transitionPrototype.remove = function() { |
---|
| 2327 | return this.each("end.transition", function() { |
---|
| 2328 | var p; |
---|
| 2329 | if (!this.__transition__ && (p = this.parentNode)) p.removeChild(this); |
---|
| 2330 | }); |
---|
| 2331 | }; |
---|
| 2332 | d3_transitionPrototype.delay = function(value) { |
---|
| 2333 | var groups = this; |
---|
| 2334 | return groups.each(typeof value === "function" |
---|
| 2335 | ? function(d, i, j) { groups[j][i].delay = value.apply(this, arguments) | 0; } |
---|
| 2336 | : (value = value | 0, function(d, i, j) { groups[j][i].delay = value; })); |
---|
| 2337 | }; |
---|
| 2338 | d3_transitionPrototype.duration = function(value) { |
---|
| 2339 | var groups = this; |
---|
| 2340 | return groups.each(typeof value === "function" |
---|
| 2341 | ? function(d, i, j) { groups[j][i].duration = Math.max(1, value.apply(this, arguments) | 0); } |
---|
| 2342 | : (value = Math.max(1, value | 0), function(d, i, j) { groups[j][i].duration = value; })); |
---|
| 2343 | }; |
---|
| 2344 | function d3_transition_each(callback) { |
---|
| 2345 | var id = d3_transitionId, |
---|
| 2346 | ease = d3_transitionEase, |
---|
| 2347 | delay = d3_transitionDelay, |
---|
| 2348 | duration = d3_transitionDuration; |
---|
| 2349 | |
---|
| 2350 | d3_transitionId = this.id; |
---|
| 2351 | d3_transitionEase = this.ease(); |
---|
| 2352 | for (var j = 0, m = this.length; j < m; j++) { |
---|
| 2353 | for (var group = this[j], i = 0, n = group.length; i < n; i++) { |
---|
| 2354 | var node = group[i]; |
---|
| 2355 | if (node) { |
---|
| 2356 | d3_transitionDelay = this[j][i].delay; |
---|
| 2357 | d3_transitionDuration = this[j][i].duration; |
---|
| 2358 | callback.call(node = node.node, node.__data__, i, j); |
---|
| 2359 | } |
---|
| 2360 | } |
---|
| 2361 | } |
---|
| 2362 | |
---|
| 2363 | d3_transitionId = id; |
---|
| 2364 | d3_transitionEase = ease; |
---|
| 2365 | d3_transitionDelay = delay; |
---|
| 2366 | d3_transitionDuration = duration; |
---|
| 2367 | return this; |
---|
| 2368 | } |
---|
| 2369 | d3_transitionPrototype.transition = function() { |
---|
| 2370 | return this.select(d3_this); |
---|
| 2371 | }; |
---|
| 2372 | var d3_timer_queue = null, |
---|
| 2373 | d3_timer_interval, // is an interval (or frame) active? |
---|
| 2374 | d3_timer_timeout; // is a timeout active? |
---|
| 2375 | |
---|
| 2376 | // The timer will continue to fire until callback returns true. |
---|
| 2377 | d3.timer = function(callback, delay, then) { |
---|
| 2378 | var found = false, |
---|
| 2379 | t0, |
---|
| 2380 | t1 = d3_timer_queue; |
---|
| 2381 | |
---|
| 2382 | if (arguments.length < 3) { |
---|
| 2383 | if (arguments.length < 2) delay = 0; |
---|
| 2384 | else if (!isFinite(delay)) return; |
---|
| 2385 | then = Date.now(); |
---|
| 2386 | } |
---|
| 2387 | |
---|
| 2388 | // See if the callback's already in the queue. |
---|
| 2389 | while (t1) { |
---|
| 2390 | if (t1.callback === callback) { |
---|
| 2391 | t1.then = then; |
---|
| 2392 | t1.delay = delay; |
---|
| 2393 | found = true; |
---|
| 2394 | break; |
---|
| 2395 | } |
---|
| 2396 | t0 = t1; |
---|
| 2397 | t1 = t1.next; |
---|
| 2398 | } |
---|
| 2399 | |
---|
| 2400 | // Otherwise, add the callback to the queue. |
---|
| 2401 | if (!found) d3_timer_queue = { |
---|
| 2402 | callback: callback, |
---|
| 2403 | then: then, |
---|
| 2404 | delay: delay, |
---|
| 2405 | next: d3_timer_queue |
---|
| 2406 | }; |
---|
| 2407 | |
---|
| 2408 | // Start animatin'! |
---|
| 2409 | if (!d3_timer_interval) { |
---|
| 2410 | d3_timer_timeout = clearTimeout(d3_timer_timeout); |
---|
| 2411 | d3_timer_interval = 1; |
---|
| 2412 | d3_timer_frame(d3_timer_step); |
---|
| 2413 | } |
---|
| 2414 | } |
---|
| 2415 | |
---|
| 2416 | function d3_timer_step() { |
---|
| 2417 | var elapsed, |
---|
| 2418 | now = Date.now(), |
---|
| 2419 | t1 = d3_timer_queue; |
---|
| 2420 | |
---|
| 2421 | while (t1) { |
---|
| 2422 | elapsed = now - t1.then; |
---|
| 2423 | if (elapsed >= t1.delay) t1.flush = t1.callback(elapsed); |
---|
| 2424 | t1 = t1.next; |
---|
| 2425 | } |
---|
| 2426 | |
---|
| 2427 | var delay = d3_timer_flush() - now; |
---|
| 2428 | if (delay > 24) { |
---|
| 2429 | if (isFinite(delay)) { |
---|
| 2430 | clearTimeout(d3_timer_timeout); |
---|
| 2431 | d3_timer_timeout = setTimeout(d3_timer_step, delay); |
---|
| 2432 | } |
---|
| 2433 | d3_timer_interval = 0; |
---|
| 2434 | } else { |
---|
| 2435 | d3_timer_interval = 1; |
---|
| 2436 | d3_timer_frame(d3_timer_step); |
---|
| 2437 | } |
---|
| 2438 | } |
---|
| 2439 | |
---|
| 2440 | d3.timer.flush = function() { |
---|
| 2441 | var elapsed, |
---|
| 2442 | now = Date.now(), |
---|
| 2443 | t1 = d3_timer_queue; |
---|
| 2444 | |
---|
| 2445 | while (t1) { |
---|
| 2446 | elapsed = now - t1.then; |
---|
| 2447 | if (!t1.delay) t1.flush = t1.callback(elapsed); |
---|
| 2448 | t1 = t1.next; |
---|
| 2449 | } |
---|
| 2450 | |
---|
| 2451 | d3_timer_flush(); |
---|
| 2452 | }; |
---|
| 2453 | |
---|
| 2454 | // Flush after callbacks, to avoid concurrent queue modification. |
---|
| 2455 | function d3_timer_flush() { |
---|
| 2456 | var t0 = null, |
---|
| 2457 | t1 = d3_timer_queue, |
---|
| 2458 | then = Infinity; |
---|
| 2459 | while (t1) { |
---|
| 2460 | if (t1.flush) { |
---|
| 2461 | t1 = t0 ? t0.next = t1.next : d3_timer_queue = t1.next; |
---|
| 2462 | } else { |
---|
| 2463 | then = Math.min(then, t1.then + t1.delay); |
---|
| 2464 | t1 = (t0 = t1).next; |
---|
| 2465 | } |
---|
| 2466 | } |
---|
| 2467 | return then; |
---|
| 2468 | } |
---|
| 2469 | |
---|
| 2470 | var d3_timer_frame = window.requestAnimationFrame |
---|
| 2471 | || window.webkitRequestAnimationFrame |
---|
| 2472 | || window.mozRequestAnimationFrame |
---|
| 2473 | || window.oRequestAnimationFrame |
---|
| 2474 | || window.msRequestAnimationFrame |
---|
| 2475 | || function(callback) { setTimeout(callback, 17); }; |
---|
| 2476 | d3.transform = function(string) { |
---|
| 2477 | var g = document.createElementNS(d3.ns.prefix.svg, "g"), |
---|
| 2478 | identity = {a: 1, b: 0, c: 0, d: 1, e: 0, f: 0}; |
---|
| 2479 | return (d3.transform = function(string) { |
---|
| 2480 | g.setAttribute("transform", string); |
---|
| 2481 | var t = g.transform.baseVal.consolidate(); |
---|
| 2482 | return new d3_transform(t ? t.matrix : identity); |
---|
| 2483 | })(string); |
---|
| 2484 | }; |
---|
| 2485 | |
---|
| 2486 | // Compute x-scale and normalize the first row. |
---|
| 2487 | // Compute shear and make second row orthogonal to first. |
---|
| 2488 | // Compute y-scale and normalize the second row. |
---|
| 2489 | // Finally, compute the rotation. |
---|
| 2490 | function d3_transform(m) { |
---|
| 2491 | var r0 = [m.a, m.b], |
---|
| 2492 | r1 = [m.c, m.d], |
---|
| 2493 | kx = d3_transformNormalize(r0), |
---|
| 2494 | kz = d3_transformDot(r0, r1), |
---|
| 2495 | ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0; |
---|
| 2496 | if (r0[0] * r1[1] < r1[0] * r0[1]) { |
---|
| 2497 | r0[0] *= -1; |
---|
| 2498 | r0[1] *= -1; |
---|
| 2499 | kx *= -1; |
---|
| 2500 | kz *= -1; |
---|
| 2501 | } |
---|
| 2502 | this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_transformDegrees; |
---|
| 2503 | this.translate = [m.e, m.f]; |
---|
| 2504 | this.scale = [kx, ky]; |
---|
| 2505 | this.skew = ky ? Math.atan2(kz, ky) * d3_transformDegrees : 0; |
---|
| 2506 | }; |
---|
| 2507 | |
---|
| 2508 | d3_transform.prototype.toString = function() { |
---|
| 2509 | return "translate(" + this.translate |
---|
| 2510 | + ")rotate(" + this.rotate |
---|
| 2511 | + ")skewX(" + this.skew |
---|
| 2512 | + ")scale(" + this.scale |
---|
| 2513 | + ")"; |
---|
| 2514 | }; |
---|
| 2515 | |
---|
| 2516 | function d3_transformDot(a, b) { |
---|
| 2517 | return a[0] * b[0] + a[1] * b[1]; |
---|
| 2518 | } |
---|
| 2519 | |
---|
| 2520 | function d3_transformNormalize(a) { |
---|
| 2521 | var k = Math.sqrt(d3_transformDot(a, a)); |
---|
| 2522 | if (k) { |
---|
| 2523 | a[0] /= k; |
---|
| 2524 | a[1] /= k; |
---|
| 2525 | } |
---|
| 2526 | return k; |
---|
| 2527 | } |
---|
| 2528 | |
---|
| 2529 | function d3_transformCombine(a, b, k) { |
---|
| 2530 | a[0] += k * b[0]; |
---|
| 2531 | a[1] += k * b[1]; |
---|
| 2532 | return a; |
---|
| 2533 | } |
---|
| 2534 | |
---|
| 2535 | var d3_transformDegrees = 180 / Math.PI; |
---|
| 2536 | d3.mouse = function(container) { |
---|
| 2537 | return d3_mousePoint(container, d3_eventSource()); |
---|
| 2538 | }; |
---|
| 2539 | |
---|
| 2540 | // https://bugs.webkit.org/show_bug.cgi?id=44083 |
---|
| 2541 | var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0; |
---|
| 2542 | |
---|
| 2543 | function d3_mousePoint(container, e) { |
---|
| 2544 | var svg = container.ownerSVGElement || container; |
---|
| 2545 | if (svg.createSVGPoint) { |
---|
| 2546 | var point = svg.createSVGPoint(); |
---|
| 2547 | if ((d3_mouse_bug44083 < 0) && (window.scrollX || window.scrollY)) { |
---|
| 2548 | svg = d3.select(document.body) |
---|
| 2549 | .append("svg") |
---|
| 2550 | .style("position", "absolute") |
---|
| 2551 | .style("top", 0) |
---|
| 2552 | .style("left", 0); |
---|
| 2553 | var ctm = svg[0][0].getScreenCTM(); |
---|
| 2554 | d3_mouse_bug44083 = !(ctm.f || ctm.e); |
---|
| 2555 | svg.remove(); |
---|
| 2556 | } |
---|
| 2557 | if (d3_mouse_bug44083) { |
---|
| 2558 | point.x = e.pageX; |
---|
| 2559 | point.y = e.pageY; |
---|
| 2560 | } else { |
---|
| 2561 | point.x = e.clientX; |
---|
| 2562 | point.y = e.clientY; |
---|
| 2563 | } |
---|
| 2564 | point = point.matrixTransform(container.getScreenCTM().inverse()); |
---|
| 2565 | return [point.x, point.y]; |
---|
| 2566 | } |
---|
| 2567 | var rect = container.getBoundingClientRect(); |
---|
| 2568 | return [e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop]; |
---|
| 2569 | }; |
---|
| 2570 | d3.touches = function(container, touches) { |
---|
| 2571 | if (arguments.length < 2) touches = d3_eventSource().touches; |
---|
| 2572 | return touches ? d3_array(touches).map(function(touch) { |
---|
| 2573 | var point = d3_mousePoint(container, touch); |
---|
| 2574 | point.identifier = touch.identifier; |
---|
| 2575 | return point; |
---|
| 2576 | }) : []; |
---|
| 2577 | }; |
---|
| 2578 | function d3_noop() {} |
---|
| 2579 | d3.scale = {}; |
---|
| 2580 | |
---|
| 2581 | function d3_scaleExtent(domain) { |
---|
| 2582 | var start = domain[0], stop = domain[domain.length - 1]; |
---|
| 2583 | return start < stop ? [start, stop] : [stop, start]; |
---|
| 2584 | } |
---|
| 2585 | |
---|
| 2586 | function d3_scaleRange(scale) { |
---|
| 2587 | return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range()); |
---|
| 2588 | } |
---|
| 2589 | function d3_scale_nice(domain, nice) { |
---|
| 2590 | var i0 = 0, |
---|
| 2591 | i1 = domain.length - 1, |
---|
| 2592 | x0 = domain[i0], |
---|
| 2593 | x1 = domain[i1], |
---|
| 2594 | dx; |
---|
| 2595 | |
---|
| 2596 | if (x1 < x0) { |
---|
| 2597 | dx = i0; i0 = i1; i1 = dx; |
---|
| 2598 | dx = x0; x0 = x1; x1 = dx; |
---|
| 2599 | } |
---|
| 2600 | |
---|
| 2601 | if (dx = x1 - x0) { |
---|
| 2602 | nice = nice(dx); |
---|
| 2603 | domain[i0] = nice.floor(x0); |
---|
| 2604 | domain[i1] = nice.ceil(x1); |
---|
| 2605 | } |
---|
| 2606 | |
---|
| 2607 | return domain; |
---|
| 2608 | } |
---|
| 2609 | |
---|
| 2610 | function d3_scale_niceDefault() { |
---|
| 2611 | return Math; |
---|
| 2612 | } |
---|
| 2613 | d3.scale.linear = function() { |
---|
| 2614 | return d3_scale_linear([0, 1], [0, 1], d3.interpolate, false); |
---|
| 2615 | }; |
---|
| 2616 | |
---|
| 2617 | function d3_scale_linear(domain, range, interpolate, clamp) { |
---|
| 2618 | var output, |
---|
| 2619 | input; |
---|
| 2620 | |
---|
| 2621 | function rescale() { |
---|
| 2622 | var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear, |
---|
| 2623 | uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber; |
---|
| 2624 | output = linear(domain, range, uninterpolate, interpolate); |
---|
| 2625 | input = linear(range, domain, uninterpolate, d3.interpolate); |
---|
| 2626 | return scale; |
---|
| 2627 | } |
---|
| 2628 | |
---|
| 2629 | function scale(x) { |
---|
| 2630 | return output(x); |
---|
| 2631 | } |
---|
| 2632 | |
---|
| 2633 | // Note: requires range is coercible to number! |
---|
| 2634 | scale.invert = function(y) { |
---|
| 2635 | return input(y); |
---|
| 2636 | }; |
---|
| 2637 | |
---|
| 2638 | scale.domain = function(x) { |
---|
| 2639 | if (!arguments.length) return domain; |
---|
| 2640 | domain = x.map(Number); |
---|
| 2641 | return rescale(); |
---|
| 2642 | }; |
---|
| 2643 | |
---|
| 2644 | scale.range = function(x) { |
---|
| 2645 | if (!arguments.length) return range; |
---|
| 2646 | range = x; |
---|
| 2647 | return rescale(); |
---|
| 2648 | }; |
---|
| 2649 | |
---|
| 2650 | scale.rangeRound = function(x) { |
---|
| 2651 | return scale.range(x).interpolate(d3.interpolateRound); |
---|
| 2652 | }; |
---|
| 2653 | |
---|
| 2654 | scale.clamp = function(x) { |
---|
| 2655 | if (!arguments.length) return clamp; |
---|
| 2656 | clamp = x; |
---|
| 2657 | return rescale(); |
---|
| 2658 | }; |
---|
| 2659 | |
---|
| 2660 | scale.interpolate = function(x) { |
---|
| 2661 | if (!arguments.length) return interpolate; |
---|
| 2662 | interpolate = x; |
---|
| 2663 | return rescale(); |
---|
| 2664 | }; |
---|
| 2665 | |
---|
| 2666 | scale.ticks = function(m) { |
---|
| 2667 | return d3_scale_linearTicks(domain, m); |
---|
| 2668 | }; |
---|
| 2669 | |
---|
| 2670 | scale.tickFormat = function(m) { |
---|
| 2671 | return d3_scale_linearTickFormat(domain, m); |
---|
| 2672 | }; |
---|
| 2673 | |
---|
| 2674 | scale.nice = function() { |
---|
| 2675 | d3_scale_nice(domain, d3_scale_linearNice); |
---|
| 2676 | return rescale(); |
---|
| 2677 | }; |
---|
| 2678 | |
---|
| 2679 | scale.copy = function() { |
---|
| 2680 | return d3_scale_linear(domain, range, interpolate, clamp); |
---|
| 2681 | }; |
---|
| 2682 | |
---|
| 2683 | return rescale(); |
---|
| 2684 | } |
---|
| 2685 | |
---|
| 2686 | function d3_scale_linearRebind(scale, linear) { |
---|
| 2687 | return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp"); |
---|
| 2688 | } |
---|
| 2689 | |
---|
| 2690 | function d3_scale_linearNice(dx) { |
---|
| 2691 | dx = Math.pow(10, Math.round(Math.log(dx) / Math.LN10) - 1); |
---|
| 2692 | return { |
---|
| 2693 | floor: function(x) { return Math.floor(x / dx) * dx; }, |
---|
| 2694 | ceil: function(x) { return Math.ceil(x / dx) * dx; } |
---|
| 2695 | }; |
---|
| 2696 | } |
---|
| 2697 | |
---|
| 2698 | function d3_scale_linearTickRange(domain, m) { |
---|
| 2699 | var extent = d3_scaleExtent(domain), |
---|
| 2700 | span = extent[1] - extent[0], |
---|
| 2701 | step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)), |
---|
| 2702 | err = m / span * step; |
---|
| 2703 | |
---|
| 2704 | // Filter ticks to get closer to the desired count. |
---|
| 2705 | if (err <= .15) step *= 10; |
---|
| 2706 | else if (err <= .35) step *= 5; |
---|
| 2707 | else if (err <= .75) step *= 2; |
---|
| 2708 | |
---|
| 2709 | // Round start and stop values to step interval. |
---|
| 2710 | extent[0] = Math.ceil(extent[0] / step) * step; |
---|
| 2711 | extent[1] = Math.floor(extent[1] / step) * step + step * .5; // inclusive |
---|
| 2712 | extent[2] = step; |
---|
| 2713 | return extent; |
---|
| 2714 | } |
---|
| 2715 | |
---|
| 2716 | function d3_scale_linearTicks(domain, m) { |
---|
| 2717 | return d3.range.apply(d3, d3_scale_linearTickRange(domain, m)); |
---|
| 2718 | } |
---|
| 2719 | |
---|
| 2720 | function d3_scale_linearTickFormat(domain, m) { |
---|
| 2721 | return d3.format(",." + Math.max(0, -Math.floor(Math.log(d3_scale_linearTickRange(domain, m)[2]) / Math.LN10 + .01)) + "f"); |
---|
| 2722 | } |
---|
| 2723 | function d3_scale_bilinear(domain, range, uninterpolate, interpolate) { |
---|
| 2724 | var u = uninterpolate(domain[0], domain[1]), |
---|
| 2725 | i = interpolate(range[0], range[1]); |
---|
| 2726 | return function(x) { |
---|
| 2727 | return i(u(x)); |
---|
| 2728 | }; |
---|
| 2729 | } |
---|
| 2730 | function d3_scale_polylinear(domain, range, uninterpolate, interpolate) { |
---|
| 2731 | var u = [], |
---|
| 2732 | i = [], |
---|
| 2733 | j = 0, |
---|
| 2734 | k = Math.min(domain.length, range.length) - 1; |
---|
| 2735 | |
---|
| 2736 | // Handle descending domains. |
---|
| 2737 | if (domain[k] < domain[0]) { |
---|
| 2738 | domain = domain.slice().reverse(); |
---|
| 2739 | range = range.slice().reverse(); |
---|
| 2740 | } |
---|
| 2741 | |
---|
| 2742 | while (++j <= k) { |
---|
| 2743 | u.push(uninterpolate(domain[j - 1], domain[j])); |
---|
| 2744 | i.push(interpolate(range[j - 1], range[j])); |
---|
| 2745 | } |
---|
| 2746 | |
---|
| 2747 | return function(x) { |
---|
| 2748 | var j = d3.bisect(domain, x, 1, k) - 1; |
---|
| 2749 | return i[j](u[j](x)); |
---|
| 2750 | }; |
---|
| 2751 | } |
---|
| 2752 | d3.scale.log = function() { |
---|
| 2753 | return d3_scale_log(d3.scale.linear(), d3_scale_logp); |
---|
| 2754 | }; |
---|
| 2755 | |
---|
| 2756 | function d3_scale_log(linear, log) { |
---|
| 2757 | var pow = log.pow; |
---|
| 2758 | |
---|
| 2759 | function scale(x) { |
---|
| 2760 | return linear(log(x)); |
---|
| 2761 | } |
---|
| 2762 | |
---|
| 2763 | scale.invert = function(x) { |
---|
| 2764 | return pow(linear.invert(x)); |
---|
| 2765 | }; |
---|
| 2766 | |
---|
| 2767 | scale.domain = function(x) { |
---|
| 2768 | if (!arguments.length) return linear.domain().map(pow); |
---|
| 2769 | log = x[0] < 0 ? d3_scale_logn : d3_scale_logp; |
---|
| 2770 | pow = log.pow; |
---|
| 2771 | linear.domain(x.map(log)); |
---|
| 2772 | return scale; |
---|
| 2773 | }; |
---|
| 2774 | |
---|
| 2775 | scale.nice = function() { |
---|
| 2776 | linear.domain(d3_scale_nice(linear.domain(), d3_scale_niceDefault)); |
---|
| 2777 | return scale; |
---|
| 2778 | }; |
---|
| 2779 | |
---|
| 2780 | scale.ticks = function() { |
---|
| 2781 | var extent = d3_scaleExtent(linear.domain()), |
---|
| 2782 | ticks = []; |
---|
| 2783 | if (extent.every(isFinite)) { |
---|
| 2784 | var i = Math.floor(extent[0]), |
---|
| 2785 | j = Math.ceil(extent[1]), |
---|
| 2786 | u = pow(extent[0]), |
---|
| 2787 | v = pow(extent[1]); |
---|
| 2788 | if (log === d3_scale_logn) { |
---|
| 2789 | ticks.push(pow(i)); |
---|
| 2790 | for (; i++ < j;) for (var k = 9; k > 0; k--) ticks.push(pow(i) * k); |
---|
| 2791 | } else { |
---|
| 2792 | for (; i < j; i++) for (var k = 1; k < 10; k++) ticks.push(pow(i) * k); |
---|
| 2793 | ticks.push(pow(i)); |
---|
| 2794 | } |
---|
| 2795 | for (i = 0; ticks[i] < u; i++) {} // strip small values |
---|
| 2796 | for (j = ticks.length; ticks[j - 1] > v; j--) {} // strip big values |
---|
| 2797 | ticks = ticks.slice(i, j); |
---|
| 2798 | } |
---|
| 2799 | return ticks; |
---|
| 2800 | }; |
---|
| 2801 | |
---|
| 2802 | scale.tickFormat = function(n, format) { |
---|
| 2803 | if (arguments.length < 2) format = d3_scale_logFormat; |
---|
| 2804 | if (arguments.length < 1) return format; |
---|
| 2805 | var k = n / scale.ticks().length, |
---|
| 2806 | f = log === d3_scale_logn ? (e = -1e-12, Math.floor) : (e = 1e-12, Math.ceil), |
---|
| 2807 | e; |
---|
| 2808 | return function(d) { |
---|
| 2809 | return d / pow(f(log(d) + e)) < k ? format(d) : ""; |
---|
| 2810 | }; |
---|
| 2811 | }; |
---|
| 2812 | |
---|
| 2813 | scale.copy = function() { |
---|
| 2814 | return d3_scale_log(linear.copy(), log); |
---|
| 2815 | }; |
---|
| 2816 | |
---|
| 2817 | return d3_scale_linearRebind(scale, linear); |
---|
| 2818 | } |
---|
| 2819 | |
---|
| 2820 | var d3_scale_logFormat = d3.format(".0e"); |
---|
| 2821 | |
---|
| 2822 | function d3_scale_logp(x) { |
---|
| 2823 | return Math.log(x < 0 ? 0 : x) / Math.LN10; |
---|
| 2824 | } |
---|
| 2825 | |
---|
| 2826 | function d3_scale_logn(x) { |
---|
| 2827 | return -Math.log(x > 0 ? 0 : -x) / Math.LN10; |
---|
| 2828 | } |
---|
| 2829 | |
---|
| 2830 | d3_scale_logp.pow = function(x) { |
---|
| 2831 | return Math.pow(10, x); |
---|
| 2832 | }; |
---|
| 2833 | |
---|
| 2834 | d3_scale_logn.pow = function(x) { |
---|
| 2835 | return -Math.pow(10, -x); |
---|
| 2836 | }; |
---|
| 2837 | d3.scale.pow = function() { |
---|
| 2838 | return d3_scale_pow(d3.scale.linear(), 1); |
---|
| 2839 | }; |
---|
| 2840 | |
---|
| 2841 | function d3_scale_pow(linear, exponent) { |
---|
| 2842 | var powp = d3_scale_powPow(exponent), |
---|
| 2843 | powb = d3_scale_powPow(1 / exponent); |
---|
| 2844 | |
---|
| 2845 | function scale(x) { |
---|
| 2846 | return linear(powp(x)); |
---|
| 2847 | } |
---|
| 2848 | |
---|
| 2849 | scale.invert = function(x) { |
---|
| 2850 | return powb(linear.invert(x)); |
---|
| 2851 | }; |
---|
| 2852 | |
---|
| 2853 | scale.domain = function(x) { |
---|
| 2854 | if (!arguments.length) return linear.domain().map(powb); |
---|
| 2855 | linear.domain(x.map(powp)); |
---|
| 2856 | return scale; |
---|
| 2857 | }; |
---|
| 2858 | |
---|
| 2859 | scale.ticks = function(m) { |
---|
| 2860 | return d3_scale_linearTicks(scale.domain(), m); |
---|
| 2861 | }; |
---|
| 2862 | |
---|
| 2863 | scale.tickFormat = function(m) { |
---|
| 2864 | return d3_scale_linearTickFormat(scale.domain(), m); |
---|
| 2865 | }; |
---|
| 2866 | |
---|
| 2867 | scale.nice = function() { |
---|
| 2868 | return scale.domain(d3_scale_nice(scale.domain(), d3_scale_linearNice)); |
---|
| 2869 | }; |
---|
| 2870 | |
---|
| 2871 | scale.exponent = function(x) { |
---|
| 2872 | if (!arguments.length) return exponent; |
---|
| 2873 | var domain = scale.domain(); |
---|
| 2874 | powp = d3_scale_powPow(exponent = x); |
---|
| 2875 | powb = d3_scale_powPow(1 / exponent); |
---|
| 2876 | return scale.domain(domain); |
---|
| 2877 | }; |
---|
| 2878 | |
---|
| 2879 | scale.copy = function() { |
---|
| 2880 | return d3_scale_pow(linear.copy(), exponent); |
---|
| 2881 | }; |
---|
| 2882 | |
---|
| 2883 | return d3_scale_linearRebind(scale, linear); |
---|
| 2884 | } |
---|
| 2885 | |
---|
| 2886 | function d3_scale_powPow(e) { |
---|
| 2887 | return function(x) { |
---|
| 2888 | return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e); |
---|
| 2889 | }; |
---|
| 2890 | } |
---|
| 2891 | d3.scale.sqrt = function() { |
---|
| 2892 | return d3.scale.pow().exponent(.5); |
---|
| 2893 | }; |
---|
| 2894 | d3.scale.ordinal = function() { |
---|
| 2895 | return d3_scale_ordinal([], {t: "range", x: []}); |
---|
| 2896 | }; |
---|
| 2897 | |
---|
| 2898 | function d3_scale_ordinal(domain, ranger) { |
---|
| 2899 | var index, |
---|
| 2900 | range, |
---|
| 2901 | rangeBand; |
---|
| 2902 | |
---|
| 2903 | function scale(x) { |
---|
| 2904 | return range[((index.get(x) || index.set(x, domain.push(x))) - 1) % range.length]; |
---|
| 2905 | } |
---|
| 2906 | |
---|
| 2907 | function steps(start, step) { |
---|
| 2908 | return d3.range(domain.length).map(function(i) { return start + step * i; }); |
---|
| 2909 | } |
---|
| 2910 | |
---|
| 2911 | scale.domain = function(x) { |
---|
| 2912 | if (!arguments.length) return domain; |
---|
| 2913 | domain = []; |
---|
| 2914 | index = new d3_Map; |
---|
| 2915 | var i = -1, n = x.length, xi; |
---|
| 2916 | while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi)); |
---|
| 2917 | return scale[ranger.t](ranger.x, ranger.p); |
---|
| 2918 | }; |
---|
| 2919 | |
---|
| 2920 | scale.range = function(x) { |
---|
| 2921 | if (!arguments.length) return range; |
---|
| 2922 | range = x; |
---|
| 2923 | rangeBand = 0; |
---|
| 2924 | ranger = {t: "range", x: x}; |
---|
| 2925 | return scale; |
---|
| 2926 | }; |
---|
| 2927 | |
---|
| 2928 | scale.rangePoints = function(x, padding) { |
---|
| 2929 | if (arguments.length < 2) padding = 0; |
---|
| 2930 | var start = x[0], |
---|
| 2931 | stop = x[1], |
---|
| 2932 | step = (stop - start) / (domain.length - 1 + padding); |
---|
| 2933 | range = steps(domain.length < 2 ? (start + stop) / 2 : start + step * padding / 2, step); |
---|
| 2934 | rangeBand = 0; |
---|
| 2935 | ranger = {t: "rangePoints", x: x, p: padding}; |
---|
| 2936 | return scale; |
---|
| 2937 | }; |
---|
| 2938 | |
---|
| 2939 | scale.rangeBands = function(x, padding) { |
---|
| 2940 | if (arguments.length < 2) padding = 0; |
---|
| 2941 | var reverse = x[1] < x[0], |
---|
| 2942 | start = x[reverse - 0], |
---|
| 2943 | stop = x[1 - reverse], |
---|
| 2944 | step = (stop - start) / (domain.length + padding); |
---|
| 2945 | range = steps(start + step * padding, step); |
---|
| 2946 | if (reverse) range.reverse(); |
---|
| 2947 | rangeBand = step * (1 - padding); |
---|
| 2948 | ranger = {t: "rangeBands", x: x, p: padding}; |
---|
| 2949 | return scale; |
---|
| 2950 | }; |
---|
| 2951 | |
---|
| 2952 | scale.rangeRoundBands = function(x, padding) { |
---|
| 2953 | if (arguments.length < 2) padding = 0; |
---|
| 2954 | var reverse = x[1] < x[0], |
---|
| 2955 | start = x[reverse - 0], |
---|
| 2956 | stop = x[1 - reverse], |
---|
| 2957 | step = Math.floor((stop - start) / (domain.length + padding)), |
---|
| 2958 | error = stop - start - (domain.length - padding) * step; |
---|
| 2959 | range = steps(start + Math.round(error / 2), step); |
---|
| 2960 | if (reverse) range.reverse(); |
---|
| 2961 | rangeBand = Math.round(step * (1 - padding)); |
---|
| 2962 | ranger = {t: "rangeRoundBands", x: x, p: padding}; |
---|
| 2963 | return scale; |
---|
| 2964 | }; |
---|
| 2965 | |
---|
| 2966 | scale.rangeBand = function() { |
---|
| 2967 | return rangeBand; |
---|
| 2968 | }; |
---|
| 2969 | |
---|
| 2970 | scale.rangeExtent = function() { |
---|
| 2971 | return d3_scaleExtent(ranger.x); |
---|
| 2972 | }; |
---|
| 2973 | |
---|
| 2974 | scale.copy = function() { |
---|
| 2975 | return d3_scale_ordinal(domain, ranger); |
---|
| 2976 | }; |
---|
| 2977 | |
---|
| 2978 | return scale.domain(domain); |
---|
| 2979 | } |
---|
| 2980 | /* |
---|
| 2981 | * This product includes color specifications and designs developed by Cynthia |
---|
| 2982 | * Brewer (http://colorbrewer.org/). See lib/colorbrewer for more information. |
---|
| 2983 | */ |
---|
| 2984 | |
---|
| 2985 | d3.scale.category10 = function() { |
---|
| 2986 | return d3.scale.ordinal().range(d3_category10); |
---|
| 2987 | }; |
---|
| 2988 | |
---|
| 2989 | d3.scale.category20 = function() { |
---|
| 2990 | return d3.scale.ordinal().range(d3_category20); |
---|
| 2991 | }; |
---|
| 2992 | |
---|
| 2993 | d3.scale.category20b = function() { |
---|
| 2994 | return d3.scale.ordinal().range(d3_category20b); |
---|
| 2995 | }; |
---|
| 2996 | |
---|
| 2997 | d3.scale.category20c = function() { |
---|
| 2998 | return d3.scale.ordinal().range(d3_category20c); |
---|
| 2999 | }; |
---|
| 3000 | |
---|
| 3001 | var d3_category10 = [ |
---|
| 3002 | "#1f77b4", "#ff7f0e", "#2ca02c", "#d62728", "#9467bd", |
---|
| 3003 | "#8c564b", "#e377c2", "#7f7f7f", "#bcbd22", "#17becf" |
---|
| 3004 | ]; |
---|
| 3005 | |
---|
| 3006 | var d3_category20 = [ |
---|
| 3007 | "#1f77b4", "#aec7e8", |
---|
| 3008 | "#ff7f0e", "#ffbb78", |
---|
| 3009 | "#2ca02c", "#98df8a", |
---|
| 3010 | "#d62728", "#ff9896", |
---|
| 3011 | "#9467bd", "#c5b0d5", |
---|
| 3012 | "#8c564b", "#c49c94", |
---|
| 3013 | "#e377c2", "#f7b6d2", |
---|
| 3014 | "#7f7f7f", "#c7c7c7", |
---|
| 3015 | "#bcbd22", "#dbdb8d", |
---|
| 3016 | "#17becf", "#9edae5" |
---|
| 3017 | ]; |
---|
| 3018 | |
---|
| 3019 | var d3_category20b = [ |
---|
| 3020 | "#393b79", "#5254a3", "#6b6ecf", "#9c9ede", |
---|
| 3021 | "#637939", "#8ca252", "#b5cf6b", "#cedb9c", |
---|
| 3022 | "#8c6d31", "#bd9e39", "#e7ba52", "#e7cb94", |
---|
| 3023 | "#843c39", "#ad494a", "#d6616b", "#e7969c", |
---|
| 3024 | "#7b4173", "#a55194", "#ce6dbd", "#de9ed6" |
---|
| 3025 | ]; |
---|
| 3026 | |
---|
| 3027 | var d3_category20c = [ |
---|
| 3028 | "#3182bd", "#6baed6", "#9ecae1", "#c6dbef", |
---|
| 3029 | "#e6550d", "#fd8d3c", "#fdae6b", "#fdd0a2", |
---|
| 3030 | "#31a354", "#74c476", "#a1d99b", "#c7e9c0", |
---|
| 3031 | "#756bb1", "#9e9ac8", "#bcbddc", "#dadaeb", |
---|
| 3032 | "#636363", "#969696", "#bdbdbd", "#d9d9d9" |
---|
| 3033 | ]; |
---|
| 3034 | d3.scale.quantile = function() { |
---|
| 3035 | return d3_scale_quantile([], []); |
---|
| 3036 | }; |
---|
| 3037 | |
---|
| 3038 | function d3_scale_quantile(domain, range) { |
---|
| 3039 | var thresholds; |
---|
| 3040 | |
---|
| 3041 | function rescale() { |
---|
| 3042 | var k = 0, |
---|
| 3043 | n = domain.length, |
---|
| 3044 | q = range.length; |
---|
| 3045 | thresholds = []; |
---|
| 3046 | while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q); |
---|
| 3047 | return scale; |
---|
| 3048 | } |
---|
| 3049 | |
---|
| 3050 | function scale(x) { |
---|
| 3051 | if (isNaN(x = +x)) return NaN; |
---|
| 3052 | return range[d3.bisect(thresholds, x)]; |
---|
| 3053 | } |
---|
| 3054 | |
---|
| 3055 | scale.domain = function(x) { |
---|
| 3056 | if (!arguments.length) return domain; |
---|
| 3057 | domain = x.filter(function(d) { return !isNaN(d); }).sort(d3.ascending); |
---|
| 3058 | return rescale(); |
---|
| 3059 | }; |
---|
| 3060 | |
---|
| 3061 | scale.range = function(x) { |
---|
| 3062 | if (!arguments.length) return range; |
---|
| 3063 | range = x; |
---|
| 3064 | return rescale(); |
---|
| 3065 | }; |
---|
| 3066 | |
---|
| 3067 | scale.quantiles = function() { |
---|
| 3068 | return thresholds; |
---|
| 3069 | }; |
---|
| 3070 | |
---|
| 3071 | scale.copy = function() { |
---|
| 3072 | return d3_scale_quantile(domain, range); // copy on write! |
---|
| 3073 | }; |
---|
| 3074 | |
---|
| 3075 | return rescale(); |
---|
| 3076 | } |
---|
| 3077 | d3.scale.quantize = function() { |
---|
| 3078 | return d3_scale_quantize(0, 1, [0, 1]); |
---|
| 3079 | }; |
---|
| 3080 | |
---|
| 3081 | function d3_scale_quantize(x0, x1, range) { |
---|
| 3082 | var kx, i; |
---|
| 3083 | |
---|
| 3084 | function scale(x) { |
---|
| 3085 | return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))]; |
---|
| 3086 | } |
---|
| 3087 | |
---|
| 3088 | function rescale() { |
---|
| 3089 | kx = range.length / (x1 - x0); |
---|
| 3090 | i = range.length - 1; |
---|
| 3091 | return scale; |
---|
| 3092 | } |
---|
| 3093 | |
---|
| 3094 | scale.domain = function(x) { |
---|
| 3095 | if (!arguments.length) return [x0, x1]; |
---|
| 3096 | x0 = +x[0]; |
---|
| 3097 | x1 = +x[x.length - 1]; |
---|
| 3098 | return rescale(); |
---|
| 3099 | }; |
---|
| 3100 | |
---|
| 3101 | scale.range = function(x) { |
---|
| 3102 | if (!arguments.length) return range; |
---|
| 3103 | range = x; |
---|
| 3104 | return rescale(); |
---|
| 3105 | }; |
---|
| 3106 | |
---|
| 3107 | scale.copy = function() { |
---|
| 3108 | return d3_scale_quantize(x0, x1, range); // copy on write |
---|
| 3109 | }; |
---|
| 3110 | |
---|
| 3111 | return rescale(); |
---|
| 3112 | } |
---|
| 3113 | d3.scale.identity = function() { |
---|
| 3114 | return d3_scale_identity([0, 1]); |
---|
| 3115 | }; |
---|
| 3116 | |
---|
| 3117 | function d3_scale_identity(domain) { |
---|
| 3118 | |
---|
| 3119 | function identity(x) { return +x; } |
---|
| 3120 | |
---|
| 3121 | identity.invert = identity; |
---|
| 3122 | |
---|
| 3123 | identity.domain = identity.range = function(x) { |
---|
| 3124 | if (!arguments.length) return domain; |
---|
| 3125 | domain = x.map(identity); |
---|
| 3126 | return identity; |
---|
| 3127 | }; |
---|
| 3128 | |
---|
| 3129 | identity.ticks = function(m) { |
---|
| 3130 | return d3_scale_linearTicks(domain, m); |
---|
| 3131 | }; |
---|
| 3132 | |
---|
| 3133 | identity.tickFormat = function(m) { |
---|
| 3134 | return d3_scale_linearTickFormat(domain, m); |
---|
| 3135 | }; |
---|
| 3136 | |
---|
| 3137 | identity.copy = function() { |
---|
| 3138 | return d3_scale_identity(domain); |
---|
| 3139 | }; |
---|
| 3140 | |
---|
| 3141 | return identity; |
---|
| 3142 | } |
---|
| 3143 | d3.svg = {}; |
---|
| 3144 | d3.svg.arc = function() { |
---|
| 3145 | var innerRadius = d3_svg_arcInnerRadius, |
---|
| 3146 | outerRadius = d3_svg_arcOuterRadius, |
---|
| 3147 | startAngle = d3_svg_arcStartAngle, |
---|
| 3148 | endAngle = d3_svg_arcEndAngle; |
---|
| 3149 | |
---|
| 3150 | function arc() { |
---|
| 3151 | var r0 = innerRadius.apply(this, arguments), |
---|
| 3152 | r1 = outerRadius.apply(this, arguments), |
---|
| 3153 | a0 = startAngle.apply(this, arguments) + d3_svg_arcOffset, |
---|
| 3154 | a1 = endAngle.apply(this, arguments) + d3_svg_arcOffset, |
---|
| 3155 | da = (a1 < a0 && (da = a0, a0 = a1, a1 = da), a1 - a0), |
---|
| 3156 | df = da < Math.PI ? "0" : "1", |
---|
| 3157 | c0 = Math.cos(a0), |
---|
| 3158 | s0 = Math.sin(a0), |
---|
| 3159 | c1 = Math.cos(a1), |
---|
| 3160 | s1 = Math.sin(a1); |
---|
| 3161 | return da >= d3_svg_arcMax |
---|
| 3162 | ? (r0 |
---|
| 3163 | ? "M0," + r1 |
---|
| 3164 | + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1) |
---|
| 3165 | + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 |
---|
| 3166 | + "M0," + r0 |
---|
| 3167 | + "A" + r0 + "," + r0 + " 0 1,0 0," + (-r0) |
---|
| 3168 | + "A" + r0 + "," + r0 + " 0 1,0 0," + r0 |
---|
| 3169 | + "Z" |
---|
| 3170 | : "M0," + r1 |
---|
| 3171 | + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1) |
---|
| 3172 | + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 |
---|
| 3173 | + "Z") |
---|
| 3174 | : (r0 |
---|
| 3175 | ? "M" + r1 * c0 + "," + r1 * s0 |
---|
| 3176 | + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 |
---|
| 3177 | + "L" + r0 * c1 + "," + r0 * s1 |
---|
| 3178 | + "A" + r0 + "," + r0 + " 0 " + df + ",0 " + r0 * c0 + "," + r0 * s0 |
---|
| 3179 | + "Z" |
---|
| 3180 | : "M" + r1 * c0 + "," + r1 * s0 |
---|
| 3181 | + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 |
---|
| 3182 | + "L0,0" |
---|
| 3183 | + "Z"); |
---|
| 3184 | } |
---|
| 3185 | |
---|
| 3186 | arc.innerRadius = function(v) { |
---|
| 3187 | if (!arguments.length) return innerRadius; |
---|
| 3188 | innerRadius = d3.functor(v); |
---|
| 3189 | return arc; |
---|
| 3190 | }; |
---|
| 3191 | |
---|
| 3192 | arc.outerRadius = function(v) { |
---|
| 3193 | if (!arguments.length) return outerRadius; |
---|
| 3194 | outerRadius = d3.functor(v); |
---|
| 3195 | return arc; |
---|
| 3196 | }; |
---|
| 3197 | |
---|
| 3198 | arc.startAngle = function(v) { |
---|
| 3199 | if (!arguments.length) return startAngle; |
---|
| 3200 | startAngle = d3.functor(v); |
---|
| 3201 | return arc; |
---|
| 3202 | }; |
---|
| 3203 | |
---|
| 3204 | arc.endAngle = function(v) { |
---|
| 3205 | if (!arguments.length) return endAngle; |
---|
| 3206 | endAngle = d3.functor(v); |
---|
| 3207 | return arc; |
---|
| 3208 | }; |
---|
| 3209 | |
---|
| 3210 | arc.centroid = function() { |
---|
| 3211 | var r = (innerRadius.apply(this, arguments) |
---|
| 3212 | + outerRadius.apply(this, arguments)) / 2, |
---|
| 3213 | a = (startAngle.apply(this, arguments) |
---|
| 3214 | + endAngle.apply(this, arguments)) / 2 + d3_svg_arcOffset; |
---|
| 3215 | return [Math.cos(a) * r, Math.sin(a) * r]; |
---|
| 3216 | }; |
---|
| 3217 | |
---|
| 3218 | return arc; |
---|
| 3219 | }; |
---|
| 3220 | |
---|
| 3221 | var d3_svg_arcOffset = -Math.PI / 2, |
---|
| 3222 | d3_svg_arcMax = 2 * Math.PI - 1e-6; |
---|
| 3223 | |
---|
| 3224 | function d3_svg_arcInnerRadius(d) { |
---|
| 3225 | return d.innerRadius; |
---|
| 3226 | } |
---|
| 3227 | |
---|
| 3228 | function d3_svg_arcOuterRadius(d) { |
---|
| 3229 | return d.outerRadius; |
---|
| 3230 | } |
---|
| 3231 | |
---|
| 3232 | function d3_svg_arcStartAngle(d) { |
---|
| 3233 | return d.startAngle; |
---|
| 3234 | } |
---|
| 3235 | |
---|
| 3236 | function d3_svg_arcEndAngle(d) { |
---|
| 3237 | return d.endAngle; |
---|
| 3238 | } |
---|
| 3239 | function d3_svg_line(projection) { |
---|
| 3240 | var x = d3_svg_lineX, |
---|
| 3241 | y = d3_svg_lineY, |
---|
| 3242 | interpolate = d3_svg_lineInterpolatorDefault, |
---|
| 3243 | interpolator = d3_svg_lineInterpolators.get(interpolate), |
---|
| 3244 | tension = .7; |
---|
| 3245 | |
---|
| 3246 | function line(d) { |
---|
| 3247 | return d.length < 1 ? null : "M" + interpolator(projection(d3_svg_linePoints(this, d, x, y)), tension); |
---|
| 3248 | } |
---|
| 3249 | |
---|
| 3250 | line.x = function(v) { |
---|
| 3251 | if (!arguments.length) return x; |
---|
| 3252 | x = v; |
---|
| 3253 | return line; |
---|
| 3254 | }; |
---|
| 3255 | |
---|
| 3256 | line.y = function(v) { |
---|
| 3257 | if (!arguments.length) return y; |
---|
| 3258 | y = v; |
---|
| 3259 | return line; |
---|
| 3260 | }; |
---|
| 3261 | |
---|
| 3262 | line.interpolate = function(v) { |
---|
| 3263 | if (!arguments.length) return interpolate; |
---|
| 3264 | if (!d3_svg_lineInterpolators.has(v += "")) v = d3_svg_lineInterpolatorDefault; |
---|
| 3265 | interpolator = d3_svg_lineInterpolators.get(interpolate = v); |
---|
| 3266 | return line; |
---|
| 3267 | }; |
---|
| 3268 | |
---|
| 3269 | line.tension = function(v) { |
---|
| 3270 | if (!arguments.length) return tension; |
---|
| 3271 | tension = v; |
---|
| 3272 | return line; |
---|
| 3273 | }; |
---|
| 3274 | |
---|
| 3275 | return line; |
---|
| 3276 | } |
---|
| 3277 | |
---|
| 3278 | d3.svg.line = function() { |
---|
| 3279 | return d3_svg_line(Object); |
---|
| 3280 | }; |
---|
| 3281 | |
---|
| 3282 | // Converts the specified array of data into an array of points |
---|
| 3283 | // (x-y tuples), by evaluating the specified `x` and `y` functions on each |
---|
| 3284 | // data point. The `this` context of the evaluated functions is the specified |
---|
| 3285 | // "self" object; each function is passed the current datum and index. |
---|
| 3286 | function d3_svg_linePoints(self, d, x, y) { |
---|
| 3287 | var points = [], |
---|
| 3288 | i = -1, |
---|
| 3289 | n = d.length, |
---|
| 3290 | fx = typeof x === "function", |
---|
| 3291 | fy = typeof y === "function", |
---|
| 3292 | value; |
---|
| 3293 | if (fx && fy) { |
---|
| 3294 | while (++i < n) points.push([ |
---|
| 3295 | x.call(self, value = d[i], i), |
---|
| 3296 | y.call(self, value, i) |
---|
| 3297 | ]); |
---|
| 3298 | } else if (fx) { |
---|
| 3299 | while (++i < n) points.push([x.call(self, d[i], i), y]); |
---|
| 3300 | } else if (fy) { |
---|
| 3301 | while (++i < n) points.push([x, y.call(self, d[i], i)]); |
---|
| 3302 | } else { |
---|
| 3303 | while (++i < n) points.push([x, y]); |
---|
| 3304 | } |
---|
| 3305 | return points; |
---|
| 3306 | } |
---|
| 3307 | |
---|
| 3308 | // The default `x` property, which references d[0]. |
---|
| 3309 | function d3_svg_lineX(d) { |
---|
| 3310 | return d[0]; |
---|
| 3311 | } |
---|
| 3312 | |
---|
| 3313 | // The default `y` property, which references d[1]. |
---|
| 3314 | function d3_svg_lineY(d) { |
---|
| 3315 | return d[1]; |
---|
| 3316 | } |
---|
| 3317 | |
---|
| 3318 | var d3_svg_lineInterpolatorDefault = "linear"; |
---|
| 3319 | |
---|
| 3320 | // The various interpolators supported by the `line` class. |
---|
| 3321 | var d3_svg_lineInterpolators = d3.map({ |
---|
| 3322 | "linear": d3_svg_lineLinear, |
---|
| 3323 | "step-before": d3_svg_lineStepBefore, |
---|
| 3324 | "step-after": d3_svg_lineStepAfter, |
---|
| 3325 | "basis": d3_svg_lineBasis, |
---|
| 3326 | "basis-open": d3_svg_lineBasisOpen, |
---|
| 3327 | "basis-closed": d3_svg_lineBasisClosed, |
---|
| 3328 | "bundle": d3_svg_lineBundle, |
---|
| 3329 | "cardinal": d3_svg_lineCardinal, |
---|
| 3330 | "cardinal-open": d3_svg_lineCardinalOpen, |
---|
| 3331 | "cardinal-closed": d3_svg_lineCardinalClosed, |
---|
| 3332 | "monotone": d3_svg_lineMonotone |
---|
| 3333 | }); |
---|
| 3334 | |
---|
| 3335 | // Linear interpolation; generates "L" commands. |
---|
| 3336 | function d3_svg_lineLinear(points) { |
---|
| 3337 | var i = 0, |
---|
| 3338 | n = points.length, |
---|
| 3339 | p = points[0], |
---|
| 3340 | path = [p[0], ",", p[1]]; |
---|
| 3341 | while (++i < n) path.push("L", (p = points[i])[0], ",", p[1]); |
---|
| 3342 | return path.join(""); |
---|
| 3343 | } |
---|
| 3344 | |
---|
| 3345 | // Step interpolation; generates "H" and "V" commands. |
---|
| 3346 | function d3_svg_lineStepBefore(points) { |
---|
| 3347 | var i = 0, |
---|
| 3348 | n = points.length, |
---|
| 3349 | p = points[0], |
---|
| 3350 | path = [p[0], ",", p[1]]; |
---|
| 3351 | while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]); |
---|
| 3352 | return path.join(""); |
---|
| 3353 | } |
---|
| 3354 | |
---|
| 3355 | // Step interpolation; generates "H" and "V" commands. |
---|
| 3356 | function d3_svg_lineStepAfter(points) { |
---|
| 3357 | var i = 0, |
---|
| 3358 | n = points.length, |
---|
| 3359 | p = points[0], |
---|
| 3360 | path = [p[0], ",", p[1]]; |
---|
| 3361 | while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]); |
---|
| 3362 | return path.join(""); |
---|
| 3363 | } |
---|
| 3364 | |
---|
| 3365 | // Open cardinal spline interpolation; generates "C" commands. |
---|
| 3366 | function d3_svg_lineCardinalOpen(points, tension) { |
---|
| 3367 | return points.length < 4 |
---|
| 3368 | ? d3_svg_lineLinear(points) |
---|
| 3369 | : points[1] + d3_svg_lineHermite(points.slice(1, points.length - 1), |
---|
| 3370 | d3_svg_lineCardinalTangents(points, tension)); |
---|
| 3371 | } |
---|
| 3372 | |
---|
| 3373 | // Closed cardinal spline interpolation; generates "C" commands. |
---|
| 3374 | function d3_svg_lineCardinalClosed(points, tension) { |
---|
| 3375 | return points.length < 3 |
---|
| 3376 | ? d3_svg_lineLinear(points) |
---|
| 3377 | : points[0] + d3_svg_lineHermite((points.push(points[0]), points), |
---|
| 3378 | d3_svg_lineCardinalTangents([points[points.length - 2]] |
---|
| 3379 | .concat(points, [points[1]]), tension)); |
---|
| 3380 | } |
---|
| 3381 | |
---|
| 3382 | // Cardinal spline interpolation; generates "C" commands. |
---|
| 3383 | function d3_svg_lineCardinal(points, tension, closed) { |
---|
| 3384 | return points.length < 3 |
---|
| 3385 | ? d3_svg_lineLinear(points) |
---|
| 3386 | : points[0] + d3_svg_lineHermite(points, |
---|
| 3387 | d3_svg_lineCardinalTangents(points, tension)); |
---|
| 3388 | } |
---|
| 3389 | |
---|
| 3390 | // Hermite spline construction; generates "C" commands. |
---|
| 3391 | function d3_svg_lineHermite(points, tangents) { |
---|
| 3392 | if (tangents.length < 1 |
---|
| 3393 | || (points.length != tangents.length |
---|
| 3394 | && points.length != tangents.length + 2)) { |
---|
| 3395 | return d3_svg_lineLinear(points); |
---|
| 3396 | } |
---|
| 3397 | |
---|
| 3398 | var quad = points.length != tangents.length, |
---|
| 3399 | path = "", |
---|
| 3400 | p0 = points[0], |
---|
| 3401 | p = points[1], |
---|
| 3402 | t0 = tangents[0], |
---|
| 3403 | t = t0, |
---|
| 3404 | pi = 1; |
---|
| 3405 | |
---|
| 3406 | if (quad) { |
---|
| 3407 | path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3) |
---|
| 3408 | + "," + p[0] + "," + p[1]; |
---|
| 3409 | p0 = points[1]; |
---|
| 3410 | pi = 2; |
---|
| 3411 | } |
---|
| 3412 | |
---|
| 3413 | if (tangents.length > 1) { |
---|
| 3414 | t = tangents[1]; |
---|
| 3415 | p = points[pi]; |
---|
| 3416 | pi++; |
---|
| 3417 | path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1]) |
---|
| 3418 | + "," + (p[0] - t[0]) + "," + (p[1] - t[1]) |
---|
| 3419 | + "," + p[0] + "," + p[1]; |
---|
| 3420 | for (var i = 2; i < tangents.length; i++, pi++) { |
---|
| 3421 | p = points[pi]; |
---|
| 3422 | t = tangents[i]; |
---|
| 3423 | path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1]) |
---|
| 3424 | + "," + p[0] + "," + p[1]; |
---|
| 3425 | } |
---|
| 3426 | } |
---|
| 3427 | |
---|
| 3428 | if (quad) { |
---|
| 3429 | var lp = points[pi]; |
---|
| 3430 | path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3) |
---|
| 3431 | + "," + lp[0] + "," + lp[1]; |
---|
| 3432 | } |
---|
| 3433 | |
---|
| 3434 | return path; |
---|
| 3435 | } |
---|
| 3436 | |
---|
| 3437 | // Generates tangents for a cardinal spline. |
---|
| 3438 | function d3_svg_lineCardinalTangents(points, tension) { |
---|
| 3439 | var tangents = [], |
---|
| 3440 | a = (1 - tension) / 2, |
---|
| 3441 | p0, |
---|
| 3442 | p1 = points[0], |
---|
| 3443 | p2 = points[1], |
---|
| 3444 | i = 1, |
---|
| 3445 | n = points.length; |
---|
| 3446 | while (++i < n) { |
---|
| 3447 | p0 = p1; |
---|
| 3448 | p1 = p2; |
---|
| 3449 | p2 = points[i]; |
---|
| 3450 | tangents.push([a * (p2[0] - p0[0]), a * (p2[1] - p0[1])]); |
---|
| 3451 | } |
---|
| 3452 | return tangents; |
---|
| 3453 | } |
---|
| 3454 | |
---|
| 3455 | // B-spline interpolation; generates "C" commands. |
---|
| 3456 | function d3_svg_lineBasis(points) { |
---|
| 3457 | if (points.length < 3) return d3_svg_lineLinear(points); |
---|
| 3458 | var i = 1, |
---|
| 3459 | n = points.length, |
---|
| 3460 | pi = points[0], |
---|
| 3461 | x0 = pi[0], |
---|
| 3462 | y0 = pi[1], |
---|
| 3463 | px = [x0, x0, x0, (pi = points[1])[0]], |
---|
| 3464 | py = [y0, y0, y0, pi[1]], |
---|
| 3465 | path = [x0, ",", y0]; |
---|
| 3466 | d3_svg_lineBasisBezier(path, px, py); |
---|
| 3467 | while (++i < n) { |
---|
| 3468 | pi = points[i]; |
---|
| 3469 | px.shift(); px.push(pi[0]); |
---|
| 3470 | py.shift(); py.push(pi[1]); |
---|
| 3471 | d3_svg_lineBasisBezier(path, px, py); |
---|
| 3472 | } |
---|
| 3473 | i = -1; |
---|
| 3474 | while (++i < 2) { |
---|
| 3475 | px.shift(); px.push(pi[0]); |
---|
| 3476 | py.shift(); py.push(pi[1]); |
---|
| 3477 | d3_svg_lineBasisBezier(path, px, py); |
---|
| 3478 | } |
---|
| 3479 | return path.join(""); |
---|
| 3480 | } |
---|
| 3481 | |
---|
| 3482 | // Open B-spline interpolation; generates "C" commands. |
---|
| 3483 | function d3_svg_lineBasisOpen(points) { |
---|
| 3484 | if (points.length < 4) return d3_svg_lineLinear(points); |
---|
| 3485 | var path = [], |
---|
| 3486 | i = -1, |
---|
| 3487 | n = points.length, |
---|
| 3488 | pi, |
---|
| 3489 | px = [0], |
---|
| 3490 | py = [0]; |
---|
| 3491 | while (++i < 3) { |
---|
| 3492 | pi = points[i]; |
---|
| 3493 | px.push(pi[0]); |
---|
| 3494 | py.push(pi[1]); |
---|
| 3495 | } |
---|
| 3496 | path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px) |
---|
| 3497 | + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py)); |
---|
| 3498 | --i; while (++i < n) { |
---|
| 3499 | pi = points[i]; |
---|
| 3500 | px.shift(); px.push(pi[0]); |
---|
| 3501 | py.shift(); py.push(pi[1]); |
---|
| 3502 | d3_svg_lineBasisBezier(path, px, py); |
---|
| 3503 | } |
---|
| 3504 | return path.join(""); |
---|
| 3505 | } |
---|
| 3506 | |
---|
| 3507 | // Closed B-spline interpolation; generates "C" commands. |
---|
| 3508 | function d3_svg_lineBasisClosed(points) { |
---|
| 3509 | var path, |
---|
| 3510 | i = -1, |
---|
| 3511 | n = points.length, |
---|
| 3512 | m = n + 4, |
---|
| 3513 | pi, |
---|
| 3514 | px = [], |
---|
| 3515 | py = []; |
---|
| 3516 | while (++i < 4) { |
---|
| 3517 | pi = points[i % n]; |
---|
| 3518 | px.push(pi[0]); |
---|
| 3519 | py.push(pi[1]); |
---|
| 3520 | } |
---|
| 3521 | path = [ |
---|
| 3522 | d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", |
---|
| 3523 | d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) |
---|
| 3524 | ]; |
---|
| 3525 | --i; while (++i < m) { |
---|
| 3526 | pi = points[i % n]; |
---|
| 3527 | px.shift(); px.push(pi[0]); |
---|
| 3528 | py.shift(); py.push(pi[1]); |
---|
| 3529 | d3_svg_lineBasisBezier(path, px, py); |
---|
| 3530 | } |
---|
| 3531 | return path.join(""); |
---|
| 3532 | } |
---|
| 3533 | |
---|
| 3534 | function d3_svg_lineBundle(points, tension) { |
---|
| 3535 | var n = points.length - 1, |
---|
| 3536 | x0 = points[0][0], |
---|
| 3537 | y0 = points[0][1], |
---|
| 3538 | dx = points[n][0] - x0, |
---|
| 3539 | dy = points[n][1] - y0, |
---|
| 3540 | i = -1, |
---|
| 3541 | p, |
---|
| 3542 | t; |
---|
| 3543 | while (++i <= n) { |
---|
| 3544 | p = points[i]; |
---|
| 3545 | t = i / n; |
---|
| 3546 | p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx); |
---|
| 3547 | p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy); |
---|
| 3548 | } |
---|
| 3549 | return d3_svg_lineBasis(points); |
---|
| 3550 | } |
---|
| 3551 | |
---|
| 3552 | // Returns the dot product of the given four-element vectors. |
---|
| 3553 | function d3_svg_lineDot4(a, b) { |
---|
| 3554 | return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3]; |
---|
| 3555 | } |
---|
| 3556 | |
---|
| 3557 | // Matrix to transform basis (b-spline) control points to bezier |
---|
| 3558 | // control points. Derived from FvD 11.2.8. |
---|
| 3559 | var d3_svg_lineBasisBezier1 = [0, 2/3, 1/3, 0], |
---|
| 3560 | d3_svg_lineBasisBezier2 = [0, 1/3, 2/3, 0], |
---|
| 3561 | d3_svg_lineBasisBezier3 = [0, 1/6, 2/3, 1/6]; |
---|
| 3562 | |
---|
| 3563 | // Pushes a "C" Bézier curve onto the specified path array, given the |
---|
| 3564 | // two specified four-element arrays which define the control points. |
---|
| 3565 | function d3_svg_lineBasisBezier(path, x, y) { |
---|
| 3566 | path.push( |
---|
| 3567 | "C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x), |
---|
| 3568 | ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y), |
---|
| 3569 | ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x), |
---|
| 3570 | ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y), |
---|
| 3571 | ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x), |
---|
| 3572 | ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y)); |
---|
| 3573 | } |
---|
| 3574 | |
---|
| 3575 | // Computes the slope from points p0 to p1. |
---|
| 3576 | function d3_svg_lineSlope(p0, p1) { |
---|
| 3577 | return (p1[1] - p0[1]) / (p1[0] - p0[0]); |
---|
| 3578 | } |
---|
| 3579 | |
---|
| 3580 | // Compute three-point differences for the given points. |
---|
| 3581 | // http://en.wikipedia.org/wiki/Cubic_Hermite_spline#Finite_difference |
---|
| 3582 | function d3_svg_lineFiniteDifferences(points) { |
---|
| 3583 | var i = 0, |
---|
| 3584 | j = points.length - 1, |
---|
| 3585 | m = [], |
---|
| 3586 | p0 = points[0], |
---|
| 3587 | p1 = points[1], |
---|
| 3588 | d = m[0] = d3_svg_lineSlope(p0, p1); |
---|
| 3589 | while (++i < j) { |
---|
| 3590 | m[i] = d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1])); |
---|
| 3591 | } |
---|
| 3592 | m[i] = d; |
---|
| 3593 | return m; |
---|
| 3594 | } |
---|
| 3595 | |
---|
| 3596 | // Interpolates the given points using Fritsch-Carlson Monotone cubic Hermite |
---|
| 3597 | // interpolation. Returns an array of tangent vectors. For details, see |
---|
| 3598 | // http://en.wikipedia.org/wiki/Monotone_cubic_interpolation |
---|
| 3599 | function d3_svg_lineMonotoneTangents(points) { |
---|
| 3600 | var tangents = [], |
---|
| 3601 | d, |
---|
| 3602 | a, |
---|
| 3603 | b, |
---|
| 3604 | s, |
---|
| 3605 | m = d3_svg_lineFiniteDifferences(points), |
---|
| 3606 | i = -1, |
---|
| 3607 | j = points.length - 1; |
---|
| 3608 | |
---|
| 3609 | // The first two steps are done by computing finite-differences: |
---|
| 3610 | // 1. Compute the slopes of the secant lines between successive points. |
---|
| 3611 | // 2. Initialize the tangents at every point as the average of the secants. |
---|
| 3612 | |
---|
| 3613 | // Then, for each segment⊠|
---|
| 3614 | while (++i < j) { |
---|
| 3615 | d = d3_svg_lineSlope(points[i], points[i + 1]); |
---|
| 3616 | |
---|
| 3617 | // 3. If two successive yk = y{k + 1} are equal (i.e., d is zero), then set |
---|
| 3618 | // mk = m{k + 1} = 0 as the spline connecting these points must be flat to |
---|
| 3619 | // preserve monotonicity. Ignore step 4 and 5 for those k. |
---|
| 3620 | |
---|
| 3621 | if (Math.abs(d) < 1e-6) { |
---|
| 3622 | m[i] = m[i + 1] = 0; |
---|
| 3623 | } else { |
---|
| 3624 | // 4. Let ak = mk / dk and bk = m{k + 1} / dk. |
---|
| 3625 | a = m[i] / d; |
---|
| 3626 | b = m[i + 1] / d; |
---|
| 3627 | |
---|
| 3628 | // 5. Prevent overshoot and ensure monotonicity by restricting the |
---|
| 3629 | // magnitude of vector <ak, bk> to a circle of radius 3. |
---|
| 3630 | s = a * a + b * b; |
---|
| 3631 | if (s > 9) { |
---|
| 3632 | s = d * 3 / Math.sqrt(s); |
---|
| 3633 | m[i] = s * a; |
---|
| 3634 | m[i + 1] = s * b; |
---|
| 3635 | } |
---|
| 3636 | } |
---|
| 3637 | } |
---|
| 3638 | |
---|
| 3639 | // Compute the normalized tangent vector from the slopes. Note that if x is |
---|
| 3640 | // not monotonic, it's possible that the slope will be infinite, so we protect |
---|
| 3641 | // against NaN by setting the coordinate to zero. |
---|
| 3642 | i = -1; while (++i <= j) { |
---|
| 3643 | s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0]) |
---|
| 3644 | / (6 * (1 + m[i] * m[i])); |
---|
| 3645 | tangents.push([s || 0, m[i] * s || 0]); |
---|
| 3646 | } |
---|
| 3647 | |
---|
| 3648 | return tangents; |
---|
| 3649 | } |
---|
| 3650 | |
---|
| 3651 | function d3_svg_lineMonotone(points) { |
---|
| 3652 | return points.length < 3 |
---|
| 3653 | ? d3_svg_lineLinear(points) |
---|
| 3654 | : points[0] + |
---|
| 3655 | d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points)); |
---|
| 3656 | } |
---|
| 3657 | d3.svg.line.radial = function() { |
---|
| 3658 | var line = d3_svg_line(d3_svg_lineRadial); |
---|
| 3659 | line.radius = line.x, delete line.x; |
---|
| 3660 | line.angle = line.y, delete line.y; |
---|
| 3661 | return line; |
---|
| 3662 | }; |
---|
| 3663 | |
---|
| 3664 | function d3_svg_lineRadial(points) { |
---|
| 3665 | var point, |
---|
| 3666 | i = -1, |
---|
| 3667 | n = points.length, |
---|
| 3668 | r, |
---|
| 3669 | a; |
---|
| 3670 | while (++i < n) { |
---|
| 3671 | point = points[i]; |
---|
| 3672 | r = point[0]; |
---|
| 3673 | a = point[1] + d3_svg_arcOffset; |
---|
| 3674 | point[0] = r * Math.cos(a); |
---|
| 3675 | point[1] = r * Math.sin(a); |
---|
| 3676 | } |
---|
| 3677 | return points; |
---|
| 3678 | } |
---|
| 3679 | function d3_svg_area(projection) { |
---|
| 3680 | var x0 = d3_svg_lineX, |
---|
| 3681 | x1 = d3_svg_lineX, |
---|
| 3682 | y0 = 0, |
---|
| 3683 | y1 = d3_svg_lineY, |
---|
| 3684 | interpolate, |
---|
| 3685 | i0, |
---|
| 3686 | i1, |
---|
| 3687 | tension = .7; |
---|
| 3688 | |
---|
| 3689 | function area(d) { |
---|
| 3690 | if (d.length < 1) return null; |
---|
| 3691 | var points0 = d3_svg_linePoints(this, d, x0, y0), |
---|
| 3692 | points1 = d3_svg_linePoints(this, d, x0 === x1 ? d3_svg_areaX(points0) : x1, y0 === y1 ? d3_svg_areaY(points0) : y1); |
---|
| 3693 | return "M" + i0(projection(points1), tension) |
---|
| 3694 | + "L" + i1(projection(points0.reverse()), tension) |
---|
| 3695 | + "Z"; |
---|
| 3696 | } |
---|
| 3697 | |
---|
| 3698 | area.x = function(x) { |
---|
| 3699 | if (!arguments.length) return x1; |
---|
| 3700 | x0 = x1 = x; |
---|
| 3701 | return area; |
---|
| 3702 | }; |
---|
| 3703 | |
---|
| 3704 | area.x0 = function(x) { |
---|
| 3705 | if (!arguments.length) return x0; |
---|
| 3706 | x0 = x; |
---|
| 3707 | return area; |
---|
| 3708 | }; |
---|
| 3709 | |
---|
| 3710 | area.x1 = function(x) { |
---|
| 3711 | if (!arguments.length) return x1; |
---|
| 3712 | x1 = x; |
---|
| 3713 | return area; |
---|
| 3714 | }; |
---|
| 3715 | |
---|
| 3716 | area.y = function(y) { |
---|
| 3717 | if (!arguments.length) return y1; |
---|
| 3718 | y0 = y1 = y; |
---|
| 3719 | return area; |
---|
| 3720 | }; |
---|
| 3721 | |
---|
| 3722 | area.y0 = function(y) { |
---|
| 3723 | if (!arguments.length) return y0; |
---|
| 3724 | y0 = y; |
---|
| 3725 | return area; |
---|
| 3726 | }; |
---|
| 3727 | |
---|
| 3728 | area.y1 = function(y) { |
---|
| 3729 | if (!arguments.length) return y1; |
---|
| 3730 | y1 = y; |
---|
| 3731 | return area; |
---|
| 3732 | }; |
---|
| 3733 | |
---|
| 3734 | area.interpolate = function(x) { |
---|
| 3735 | if (!arguments.length) return interpolate; |
---|
| 3736 | if (!d3_svg_lineInterpolators.has(x += "")) x = d3_svg_lineInterpolatorDefault; |
---|
| 3737 | i0 = d3_svg_lineInterpolators.get(interpolate = x); |
---|
| 3738 | i1 = i0.reverse || i0; |
---|
| 3739 | return area; |
---|
| 3740 | }; |
---|
| 3741 | |
---|
| 3742 | area.tension = function(x) { |
---|
| 3743 | if (!arguments.length) return tension; |
---|
| 3744 | tension = x; |
---|
| 3745 | return area; |
---|
| 3746 | }; |
---|
| 3747 | |
---|
| 3748 | return area.interpolate("linear"); |
---|
| 3749 | } |
---|
| 3750 | |
---|
| 3751 | d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter; |
---|
| 3752 | d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore; |
---|
| 3753 | |
---|
| 3754 | d3.svg.area = function() { |
---|
| 3755 | return d3_svg_area(Object); |
---|
| 3756 | }; |
---|
| 3757 | |
---|
| 3758 | function d3_svg_areaX(points) { |
---|
| 3759 | return function(d, i) { |
---|
| 3760 | return points[i][0]; |
---|
| 3761 | }; |
---|
| 3762 | } |
---|
| 3763 | |
---|
| 3764 | function d3_svg_areaY(points) { |
---|
| 3765 | return function(d, i) { |
---|
| 3766 | return points[i][1]; |
---|
| 3767 | }; |
---|
| 3768 | } |
---|
| 3769 | d3.svg.area.radial = function() { |
---|
| 3770 | var area = d3_svg_area(d3_svg_lineRadial); |
---|
| 3771 | area.radius = area.x, delete area.x; |
---|
| 3772 | area.innerRadius = area.x0, delete area.x0; |
---|
| 3773 | area.outerRadius = area.x1, delete area.x1; |
---|
| 3774 | area.angle = area.y, delete area.y; |
---|
| 3775 | area.startAngle = area.y0, delete area.y0; |
---|
| 3776 | area.endAngle = area.y1, delete area.y1; |
---|
| 3777 | return area; |
---|
| 3778 | }; |
---|
| 3779 | d3.svg.chord = function() { |
---|
| 3780 | var source = d3_svg_chordSource, |
---|
| 3781 | target = d3_svg_chordTarget, |
---|
| 3782 | radius = d3_svg_chordRadius, |
---|
| 3783 | startAngle = d3_svg_arcStartAngle, |
---|
| 3784 | endAngle = d3_svg_arcEndAngle; |
---|
| 3785 | |
---|
| 3786 | // TODO Allow control point to be customized. |
---|
| 3787 | |
---|
| 3788 | function chord(d, i) { |
---|
| 3789 | var s = subgroup(this, source, d, i), |
---|
| 3790 | t = subgroup(this, target, d, i); |
---|
| 3791 | return "M" + s.p0 |
---|
| 3792 | + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t) |
---|
| 3793 | ? curve(s.r, s.p1, s.r, s.p0) |
---|
| 3794 | : curve(s.r, s.p1, t.r, t.p0) |
---|
| 3795 | + arc(t.r, t.p1, t.a1 - t.a0) |
---|
| 3796 | + curve(t.r, t.p1, s.r, s.p0)) |
---|
| 3797 | + "Z"; |
---|
| 3798 | } |
---|
| 3799 | |
---|
| 3800 | function subgroup(self, f, d, i) { |
---|
| 3801 | var subgroup = f.call(self, d, i), |
---|
| 3802 | r = radius.call(self, subgroup, i), |
---|
| 3803 | a0 = startAngle.call(self, subgroup, i) + d3_svg_arcOffset, |
---|
| 3804 | a1 = endAngle.call(self, subgroup, i) + d3_svg_arcOffset; |
---|
| 3805 | return { |
---|
| 3806 | r: r, |
---|
| 3807 | a0: a0, |
---|
| 3808 | a1: a1, |
---|
| 3809 | p0: [r * Math.cos(a0), r * Math.sin(a0)], |
---|
| 3810 | p1: [r * Math.cos(a1), r * Math.sin(a1)] |
---|
| 3811 | }; |
---|
| 3812 | } |
---|
| 3813 | |
---|
| 3814 | function equals(a, b) { |
---|
| 3815 | return a.a0 == b.a0 && a.a1 == b.a1; |
---|
| 3816 | } |
---|
| 3817 | |
---|
| 3818 | function arc(r, p, a) { |
---|
| 3819 | return "A" + r + "," + r + " 0 " + +(a > Math.PI) + ",1 " + p; |
---|
| 3820 | } |
---|
| 3821 | |
---|
| 3822 | function curve(r0, p0, r1, p1) { |
---|
| 3823 | return "Q 0,0 " + p1; |
---|
| 3824 | } |
---|
| 3825 | |
---|
| 3826 | chord.radius = function(v) { |
---|
| 3827 | if (!arguments.length) return radius; |
---|
| 3828 | radius = d3.functor(v); |
---|
| 3829 | return chord; |
---|
| 3830 | }; |
---|
| 3831 | |
---|
| 3832 | chord.source = function(v) { |
---|
| 3833 | if (!arguments.length) return source; |
---|
| 3834 | source = d3.functor(v); |
---|
| 3835 | return chord; |
---|
| 3836 | }; |
---|
| 3837 | |
---|
| 3838 | chord.target = function(v) { |
---|
| 3839 | if (!arguments.length) return target; |
---|
| 3840 | target = d3.functor(v); |
---|
| 3841 | return chord; |
---|
| 3842 | }; |
---|
| 3843 | |
---|
| 3844 | chord.startAngle = function(v) { |
---|
| 3845 | if (!arguments.length) return startAngle; |
---|
| 3846 | startAngle = d3.functor(v); |
---|
| 3847 | return chord; |
---|
| 3848 | }; |
---|
| 3849 | |
---|
| 3850 | chord.endAngle = function(v) { |
---|
| 3851 | if (!arguments.length) return endAngle; |
---|
| 3852 | endAngle = d3.functor(v); |
---|
| 3853 | return chord; |
---|
| 3854 | }; |
---|
| 3855 | |
---|
| 3856 | return chord; |
---|
| 3857 | }; |
---|
| 3858 | |
---|
| 3859 | function d3_svg_chordSource(d) { |
---|
| 3860 | return d.source; |
---|
| 3861 | } |
---|
| 3862 | |
---|
| 3863 | function d3_svg_chordTarget(d) { |
---|
| 3864 | return d.target; |
---|
| 3865 | } |
---|
| 3866 | |
---|
| 3867 | function d3_svg_chordRadius(d) { |
---|
| 3868 | return d.radius; |
---|
| 3869 | } |
---|
| 3870 | |
---|
| 3871 | function d3_svg_chordStartAngle(d) { |
---|
| 3872 | return d.startAngle; |
---|
| 3873 | } |
---|
| 3874 | |
---|
| 3875 | function d3_svg_chordEndAngle(d) { |
---|
| 3876 | return d.endAngle; |
---|
| 3877 | } |
---|
| 3878 | d3.svg.diagonal = function() { |
---|
| 3879 | var source = d3_svg_chordSource, |
---|
| 3880 | target = d3_svg_chordTarget, |
---|
| 3881 | projection = d3_svg_diagonalProjection; |
---|
| 3882 | |
---|
| 3883 | function diagonal(d, i) { |
---|
| 3884 | var p0 = source.call(this, d, i), |
---|
| 3885 | p3 = target.call(this, d, i), |
---|
| 3886 | m = (p0.y + p3.y) / 2, |
---|
| 3887 | p = [p0, {x: p0.x, y: m}, {x: p3.x, y: m}, p3]; |
---|
| 3888 | p = p.map(projection); |
---|
| 3889 | return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3]; |
---|
| 3890 | } |
---|
| 3891 | |
---|
| 3892 | diagonal.source = function(x) { |
---|
| 3893 | if (!arguments.length) return source; |
---|
| 3894 | source = d3.functor(x); |
---|
| 3895 | return diagonal; |
---|
| 3896 | }; |
---|
| 3897 | |
---|
| 3898 | diagonal.target = function(x) { |
---|
| 3899 | if (!arguments.length) return target; |
---|
| 3900 | target = d3.functor(x); |
---|
| 3901 | return diagonal; |
---|
| 3902 | }; |
---|
| 3903 | |
---|
| 3904 | diagonal.projection = function(x) { |
---|
| 3905 | if (!arguments.length) return projection; |
---|
| 3906 | projection = x; |
---|
| 3907 | return diagonal; |
---|
| 3908 | }; |
---|
| 3909 | |
---|
| 3910 | return diagonal; |
---|
| 3911 | }; |
---|
| 3912 | |
---|
| 3913 | function d3_svg_diagonalProjection(d) { |
---|
| 3914 | return [d.x, d.y]; |
---|
| 3915 | } |
---|
| 3916 | d3.svg.diagonal.radial = function() { |
---|
| 3917 | var diagonal = d3.svg.diagonal(), |
---|
| 3918 | projection = d3_svg_diagonalProjection, |
---|
| 3919 | projection_ = diagonal.projection; |
---|
| 3920 | |
---|
| 3921 | diagonal.projection = function(x) { |
---|
| 3922 | return arguments.length |
---|
| 3923 | ? projection_(d3_svg_diagonalRadialProjection(projection = x)) |
---|
| 3924 | : projection; |
---|
| 3925 | }; |
---|
| 3926 | |
---|
| 3927 | return diagonal; |
---|
| 3928 | }; |
---|
| 3929 | |
---|
| 3930 | function d3_svg_diagonalRadialProjection(projection) { |
---|
| 3931 | return function() { |
---|
| 3932 | var d = projection.apply(this, arguments), |
---|
| 3933 | r = d[0], |
---|
| 3934 | a = d[1] + d3_svg_arcOffset; |
---|
| 3935 | return [r * Math.cos(a), r * Math.sin(a)]; |
---|
| 3936 | }; |
---|
| 3937 | } |
---|
| 3938 | d3.svg.mouse = d3.mouse; |
---|
| 3939 | d3.svg.touches = d3.touches; |
---|
| 3940 | d3.svg.symbol = function() { |
---|
| 3941 | var type = d3_svg_symbolType, |
---|
| 3942 | size = d3_svg_symbolSize; |
---|
| 3943 | |
---|
| 3944 | function symbol(d, i) { |
---|
| 3945 | return (d3_svg_symbols.get(type.call(this, d, i)) |
---|
| 3946 | || d3_svg_symbolCircle) |
---|
| 3947 | (size.call(this, d, i)); |
---|
| 3948 | } |
---|
| 3949 | |
---|
| 3950 | symbol.type = function(x) { |
---|
| 3951 | if (!arguments.length) return type; |
---|
| 3952 | type = d3.functor(x); |
---|
| 3953 | return symbol; |
---|
| 3954 | }; |
---|
| 3955 | |
---|
| 3956 | // size of symbol in square pixels |
---|
| 3957 | symbol.size = function(x) { |
---|
| 3958 | if (!arguments.length) return size; |
---|
| 3959 | size = d3.functor(x); |
---|
| 3960 | return symbol; |
---|
| 3961 | }; |
---|
| 3962 | |
---|
| 3963 | return symbol; |
---|
| 3964 | }; |
---|
| 3965 | |
---|
| 3966 | function d3_svg_symbolSize() { |
---|
| 3967 | return 64; |
---|
| 3968 | } |
---|
| 3969 | |
---|
| 3970 | function d3_svg_symbolType() { |
---|
| 3971 | return "circle"; |
---|
| 3972 | } |
---|
| 3973 | |
---|
| 3974 | function d3_svg_symbolCircle(size) { |
---|
| 3975 | var r = Math.sqrt(size / Math.PI); |
---|
| 3976 | return "M0," + r |
---|
| 3977 | + "A" + r + "," + r + " 0 1,1 0," + (-r) |
---|
| 3978 | + "A" + r + "," + r + " 0 1,1 0," + r |
---|
| 3979 | + "Z"; |
---|
| 3980 | } |
---|
| 3981 | |
---|
| 3982 | // TODO cross-diagonal? |
---|
| 3983 | var d3_svg_symbols = d3.map({ |
---|
| 3984 | "circle": d3_svg_symbolCircle, |
---|
| 3985 | "cross": function(size) { |
---|
| 3986 | var r = Math.sqrt(size / 5) / 2; |
---|
| 3987 | return "M" + -3 * r + "," + -r |
---|
| 3988 | + "H" + -r |
---|
| 3989 | + "V" + -3 * r |
---|
| 3990 | + "H" + r |
---|
| 3991 | + "V" + -r |
---|
| 3992 | + "H" + 3 * r |
---|
| 3993 | + "V" + r |
---|
| 3994 | + "H" + r |
---|
| 3995 | + "V" + 3 * r |
---|
| 3996 | + "H" + -r |
---|
| 3997 | + "V" + r |
---|
| 3998 | + "H" + -3 * r |
---|
| 3999 | + "Z"; |
---|
| 4000 | }, |
---|
| 4001 | "diamond": function(size) { |
---|
| 4002 | var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)), |
---|
| 4003 | rx = ry * d3_svg_symbolTan30; |
---|
| 4004 | return "M0," + -ry |
---|
| 4005 | + "L" + rx + ",0" |
---|
| 4006 | + " 0," + ry |
---|
| 4007 | + " " + -rx + ",0" |
---|
| 4008 | + "Z"; |
---|
| 4009 | }, |
---|
| 4010 | "square": function(size) { |
---|
| 4011 | var r = Math.sqrt(size) / 2; |
---|
| 4012 | return "M" + -r + "," + -r |
---|
| 4013 | + "L" + r + "," + -r |
---|
| 4014 | + " " + r + "," + r |
---|
| 4015 | + " " + -r + "," + r |
---|
| 4016 | + "Z"; |
---|
| 4017 | }, |
---|
| 4018 | "triangle-down": function(size) { |
---|
| 4019 | var rx = Math.sqrt(size / d3_svg_symbolSqrt3), |
---|
| 4020 | ry = rx * d3_svg_symbolSqrt3 / 2; |
---|
| 4021 | return "M0," + ry |
---|
| 4022 | + "L" + rx +"," + -ry |
---|
| 4023 | + " " + -rx + "," + -ry |
---|
| 4024 | + "Z"; |
---|
| 4025 | }, |
---|
| 4026 | "triangle-up": function(size) { |
---|
| 4027 | var rx = Math.sqrt(size / d3_svg_symbolSqrt3), |
---|
| 4028 | ry = rx * d3_svg_symbolSqrt3 / 2; |
---|
| 4029 | return "M0," + -ry |
---|
| 4030 | + "L" + rx +"," + ry |
---|
| 4031 | + " " + -rx + "," + ry |
---|
| 4032 | + "Z"; |
---|
| 4033 | } |
---|
| 4034 | }); |
---|
| 4035 | |
---|
| 4036 | d3.svg.symbolTypes = d3_svg_symbols.keys(); |
---|
| 4037 | |
---|
| 4038 | var d3_svg_symbolSqrt3 = Math.sqrt(3), |
---|
| 4039 | d3_svg_symbolTan30 = Math.tan(30 * Math.PI / 180); |
---|
| 4040 | d3.svg.axis = function() { |
---|
| 4041 | var scale = d3.scale.linear(), |
---|
| 4042 | orient = "bottom", |
---|
| 4043 | tickMajorSize = 6, |
---|
| 4044 | tickMinorSize = 6, |
---|
| 4045 | tickEndSize = 6, |
---|
| 4046 | tickPadding = 3, |
---|
| 4047 | tickArguments_ = [10], |
---|
| 4048 | tickValues = null, |
---|
| 4049 | tickFormat_, |
---|
| 4050 | tickSubdivide = 0; |
---|
| 4051 | |
---|
| 4052 | function axis(g) { |
---|
| 4053 | g.each(function() { |
---|
| 4054 | var g = d3.select(this); |
---|
| 4055 | |
---|
| 4056 | // Ticks, or domain values for ordinal scales. |
---|
| 4057 | var ticks = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments_) : scale.domain()) : tickValues, |
---|
| 4058 | tickFormat = tickFormat_ == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments_) : String) : tickFormat_; |
---|
| 4059 | |
---|
| 4060 | // Minor ticks. |
---|
| 4061 | var subticks = d3_svg_axisSubdivide(scale, ticks, tickSubdivide), |
---|
| 4062 | subtick = g.selectAll(".minor").data(subticks, String), |
---|
| 4063 | subtickEnter = subtick.enter().insert("line", "g").attr("class", "tick minor").style("opacity", 1e-6), |
---|
| 4064 | subtickExit = d3.transition(subtick.exit()).style("opacity", 1e-6).remove(), |
---|
| 4065 | subtickUpdate = d3.transition(subtick).style("opacity", 1); |
---|
| 4066 | |
---|
| 4067 | // Major ticks. |
---|
| 4068 | var tick = g.selectAll("g").data(ticks, String), |
---|
| 4069 | tickEnter = tick.enter().insert("g", "path").style("opacity", 1e-6), |
---|
| 4070 | tickExit = d3.transition(tick.exit()).style("opacity", 1e-6).remove(), |
---|
| 4071 | tickUpdate = d3.transition(tick).style("opacity", 1), |
---|
| 4072 | tickTransform; |
---|
| 4073 | |
---|
| 4074 | // Domain. |
---|
| 4075 | var range = d3_scaleRange(scale), |
---|
| 4076 | path = g.selectAll(".domain").data([0]), |
---|
| 4077 | pathEnter = path.enter().append("path").attr("class", "domain"), |
---|
| 4078 | pathUpdate = d3.transition(path); |
---|
| 4079 | |
---|
| 4080 | // Stash a snapshot of the new scale, and retrieve the old snapshot. |
---|
| 4081 | var scale1 = scale.copy(), |
---|
| 4082 | scale0 = this.__chart__ || scale1; |
---|
| 4083 | this.__chart__ = scale1; |
---|
| 4084 | |
---|
| 4085 | tickEnter.append("line").attr("class", "tick"); |
---|
| 4086 | tickEnter.append("text"); |
---|
| 4087 | tickUpdate.select("text").text(tickFormat); |
---|
| 4088 | |
---|
| 4089 | switch (orient) { |
---|
| 4090 | case "bottom": { |
---|
| 4091 | tickTransform = d3_svg_axisX; |
---|
| 4092 | subtickEnter.attr("y2", tickMinorSize); |
---|
| 4093 | subtickUpdate.attr("x2", 0).attr("y2", tickMinorSize); |
---|
| 4094 | tickEnter.select("line").attr("y2", tickMajorSize); |
---|
| 4095 | tickEnter.select("text").attr("y", Math.max(tickMajorSize, 0) + tickPadding); |
---|
| 4096 | tickUpdate.select("line").attr("x2", 0).attr("y2", tickMajorSize); |
---|
| 4097 | tickUpdate.select("text").attr("x", 0).attr("y", Math.max(tickMajorSize, 0) + tickPadding).attr("dy", ".71em").attr("text-anchor", "middle"); |
---|
| 4098 | pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize); |
---|
| 4099 | break; |
---|
| 4100 | } |
---|
| 4101 | case "top": { |
---|
| 4102 | tickTransform = d3_svg_axisX; |
---|
| 4103 | subtickEnter.attr("y2", -tickMinorSize); |
---|
| 4104 | subtickUpdate.attr("x2", 0).attr("y2", -tickMinorSize); |
---|
| 4105 | tickEnter.select("line").attr("y2", -tickMajorSize); |
---|
| 4106 | tickEnter.select("text").attr("y", -(Math.max(tickMajorSize, 0) + tickPadding)); |
---|
| 4107 | tickUpdate.select("line").attr("x2", 0).attr("y2", -tickMajorSize); |
---|
| 4108 | tickUpdate.select("text").attr("x", 0).attr("y", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("dy", "0em").attr("text-anchor", "middle"); |
---|
| 4109 | pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize); |
---|
| 4110 | break; |
---|
| 4111 | } |
---|
| 4112 | case "left": { |
---|
| 4113 | tickTransform = d3_svg_axisY; |
---|
| 4114 | subtickEnter.attr("x2", -tickMinorSize); |
---|
| 4115 | subtickUpdate.attr("x2", -tickMinorSize).attr("y2", 0); |
---|
| 4116 | tickEnter.select("line").attr("x2", -tickMajorSize); |
---|
| 4117 | tickEnter.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)); |
---|
| 4118 | tickUpdate.select("line").attr("x2", -tickMajorSize).attr("y2", 0); |
---|
| 4119 | tickUpdate.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "end"); |
---|
| 4120 | pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize); |
---|
| 4121 | break; |
---|
| 4122 | } |
---|
| 4123 | case "right": { |
---|
| 4124 | tickTransform = d3_svg_axisY; |
---|
| 4125 | subtickEnter.attr("x2", tickMinorSize); |
---|
| 4126 | subtickUpdate.attr("x2", tickMinorSize).attr("y2", 0); |
---|
| 4127 | tickEnter.select("line").attr("x2", tickMajorSize); |
---|
| 4128 | tickEnter.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding); |
---|
| 4129 | tickUpdate.select("line").attr("x2", tickMajorSize).attr("y2", 0); |
---|
| 4130 | tickUpdate.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "start"); |
---|
| 4131 | pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize); |
---|
| 4132 | break; |
---|
| 4133 | } |
---|
| 4134 | } |
---|
| 4135 | |
---|
| 4136 | // For quantitative scales: |
---|
| 4137 | // - enter new ticks from the old scale |
---|
| 4138 | // - exit old ticks to the new scale |
---|
| 4139 | if (scale.ticks) { |
---|
| 4140 | tickEnter.call(tickTransform, scale0); |
---|
| 4141 | tickUpdate.call(tickTransform, scale1); |
---|
| 4142 | tickExit.call(tickTransform, scale1); |
---|
| 4143 | subtickEnter.call(tickTransform, scale0); |
---|
| 4144 | subtickUpdate.call(tickTransform, scale1); |
---|
| 4145 | subtickExit.call(tickTransform, scale1); |
---|
| 4146 | } |
---|
| 4147 | |
---|
| 4148 | // For ordinal scales: |
---|
| 4149 | // - any entering ticks are undefined in the old scale |
---|
| 4150 | // - any exiting ticks are undefined in the new scale |
---|
| 4151 | // Therefore, we only need to transition updating ticks. |
---|
| 4152 | else { |
---|
| 4153 | var dx = scale1.rangeBand() / 2, x = function(d) { return scale1(d) + dx; }; |
---|
| 4154 | tickEnter.call(tickTransform, x); |
---|
| 4155 | tickUpdate.call(tickTransform, x); |
---|
| 4156 | } |
---|
| 4157 | }); |
---|
| 4158 | } |
---|
| 4159 | |
---|
| 4160 | axis.scale = function(x) { |
---|
| 4161 | if (!arguments.length) return scale; |
---|
| 4162 | scale = x; |
---|
| 4163 | return axis; |
---|
| 4164 | }; |
---|
| 4165 | |
---|
| 4166 | axis.orient = function(x) { |
---|
| 4167 | if (!arguments.length) return orient; |
---|
| 4168 | orient = x; |
---|
| 4169 | return axis; |
---|
| 4170 | }; |
---|
| 4171 | |
---|
| 4172 | axis.ticks = function() { |
---|
| 4173 | if (!arguments.length) return tickArguments_; |
---|
| 4174 | tickArguments_ = arguments; |
---|
| 4175 | return axis; |
---|
| 4176 | }; |
---|
| 4177 | |
---|
| 4178 | axis.tickValues = function(x) { |
---|
| 4179 | if (!arguments.length) return tickValues; |
---|
| 4180 | tickValues = x; |
---|
| 4181 | return axis; |
---|
| 4182 | }; |
---|
| 4183 | |
---|
| 4184 | axis.tickFormat = function(x) { |
---|
| 4185 | if (!arguments.length) return tickFormat_; |
---|
| 4186 | tickFormat_ = x; |
---|
| 4187 | return axis; |
---|
| 4188 | }; |
---|
| 4189 | |
---|
| 4190 | axis.tickSize = function(x, y, z) { |
---|
| 4191 | if (!arguments.length) return tickMajorSize; |
---|
| 4192 | var n = arguments.length - 1; |
---|
| 4193 | tickMajorSize = +x; |
---|
| 4194 | tickMinorSize = n > 1 ? +y : tickMajorSize; |
---|
| 4195 | tickEndSize = n > 0 ? +arguments[n] : tickMajorSize; |
---|
| 4196 | return axis; |
---|
| 4197 | }; |
---|
| 4198 | |
---|
| 4199 | axis.tickPadding = function(x) { |
---|
| 4200 | if (!arguments.length) return tickPadding; |
---|
| 4201 | tickPadding = +x; |
---|
| 4202 | return axis; |
---|
| 4203 | }; |
---|
| 4204 | |
---|
| 4205 | axis.tickSubdivide = function(x) { |
---|
| 4206 | if (!arguments.length) return tickSubdivide; |
---|
| 4207 | tickSubdivide = +x; |
---|
| 4208 | return axis; |
---|
| 4209 | }; |
---|
| 4210 | |
---|
| 4211 | return axis; |
---|
| 4212 | }; |
---|
| 4213 | |
---|
| 4214 | function d3_svg_axisX(selection, x) { |
---|
| 4215 | selection.attr("transform", function(d) { return "translate(" + x(d) + ",0)"; }); |
---|
| 4216 | } |
---|
| 4217 | |
---|
| 4218 | function d3_svg_axisY(selection, y) { |
---|
| 4219 | selection.attr("transform", function(d) { return "translate(0," + y(d) + ")"; }); |
---|
| 4220 | } |
---|
| 4221 | |
---|
| 4222 | function d3_svg_axisSubdivide(scale, ticks, m) { |
---|
| 4223 | subticks = []; |
---|
| 4224 | if (m && ticks.length > 1) { |
---|
| 4225 | var extent = d3_scaleExtent(scale.domain()), |
---|
| 4226 | subticks, |
---|
| 4227 | i = -1, |
---|
| 4228 | n = ticks.length, |
---|
| 4229 | d = (ticks[1] - ticks[0]) / ++m, |
---|
| 4230 | j, |
---|
| 4231 | v; |
---|
| 4232 | while (++i < n) { |
---|
| 4233 | for (j = m; --j > 0;) { |
---|
| 4234 | if ((v = +ticks[i] - j * d) >= extent[0]) { |
---|
| 4235 | subticks.push(v); |
---|
| 4236 | } |
---|
| 4237 | } |
---|
| 4238 | } |
---|
| 4239 | for (--i, j = 0; ++j < m && (v = +ticks[i] + j * d) < extent[1];) { |
---|
| 4240 | subticks.push(v); |
---|
| 4241 | } |
---|
| 4242 | } |
---|
| 4243 | return subticks; |
---|
| 4244 | } |
---|
| 4245 | d3.svg.brush = function() { |
---|
| 4246 | var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"), |
---|
| 4247 | x = null, // x-scale, optional |
---|
| 4248 | y = null, // y-scale, optional |
---|
| 4249 | resizes = d3_svg_brushResizes[0], |
---|
| 4250 | extent = [[0, 0], [0, 0]], // [x0, y0], [x1, y1], in pixels (integers) |
---|
| 4251 | extentDomain; // the extent in data space, lazily created |
---|
| 4252 | |
---|
| 4253 | function brush(g) { |
---|
| 4254 | g.each(function() { |
---|
| 4255 | var g = d3.select(this), |
---|
| 4256 | bg = g.selectAll(".background").data([0]), |
---|
| 4257 | fg = g.selectAll(".extent").data([0]), |
---|
| 4258 | tz = g.selectAll(".resize").data(resizes, String), |
---|
| 4259 | e; |
---|
| 4260 | |
---|
| 4261 | // Prepare the brush container for events. |
---|
| 4262 | g |
---|
| 4263 | .style("pointer-events", "all") |
---|
| 4264 | .on("mousedown.brush", brushstart) |
---|
| 4265 | .on("touchstart.brush", brushstart); |
---|
| 4266 | |
---|
| 4267 | // An invisible, mouseable area for starting a new brush. |
---|
| 4268 | bg.enter().append("rect") |
---|
| 4269 | .attr("class", "background") |
---|
| 4270 | .style("visibility", "hidden") |
---|
| 4271 | .style("cursor", "crosshair"); |
---|
| 4272 | |
---|
| 4273 | // The visible brush extent; style this as you like! |
---|
| 4274 | fg.enter().append("rect") |
---|
| 4275 | .attr("class", "extent") |
---|
| 4276 | .style("cursor", "move"); |
---|
| 4277 | |
---|
| 4278 | // More invisible rects for resizing the extent. |
---|
| 4279 | tz.enter().append("g") |
---|
| 4280 | .attr("class", function(d) { return "resize " + d; }) |
---|
| 4281 | .style("cursor", function(d) { return d3_svg_brushCursor[d]; }) |
---|
| 4282 | .append("rect") |
---|
| 4283 | .attr("x", function(d) { return /[ew]$/.test(d) ? -3 : null; }) |
---|
| 4284 | .attr("y", function(d) { return /^[ns]/.test(d) ? -3 : null; }) |
---|
| 4285 | .attr("width", 6) |
---|
| 4286 | .attr("height", 6) |
---|
| 4287 | .style("visibility", "hidden"); |
---|
| 4288 | |
---|
| 4289 | // Show or hide the resizers. |
---|
| 4290 | tz.style("display", brush.empty() ? "none" : null); |
---|
| 4291 | |
---|
| 4292 | // Remove any superfluous resizers. |
---|
| 4293 | tz.exit().remove(); |
---|
| 4294 | |
---|
| 4295 | // Initialize the background to fill the defined range. |
---|
| 4296 | // If the range isn't defined, you can post-process. |
---|
| 4297 | if (x) { |
---|
| 4298 | e = d3_scaleRange(x); |
---|
| 4299 | bg.attr("x", e[0]).attr("width", e[1] - e[0]); |
---|
| 4300 | redrawX(g); |
---|
| 4301 | } |
---|
| 4302 | if (y) { |
---|
| 4303 | e = d3_scaleRange(y); |
---|
| 4304 | bg.attr("y", e[0]).attr("height", e[1] - e[0]); |
---|
| 4305 | redrawY(g); |
---|
| 4306 | } |
---|
| 4307 | redraw(g); |
---|
| 4308 | }); |
---|
| 4309 | } |
---|
| 4310 | |
---|
| 4311 | function redraw(g) { |
---|
| 4312 | g.selectAll(".resize").attr("transform", function(d) { |
---|
| 4313 | return "translate(" + extent[+/e$/.test(d)][0] + "," + extent[+/^s/.test(d)][1] + ")"; |
---|
| 4314 | }); |
---|
| 4315 | } |
---|
| 4316 | |
---|
| 4317 | function redrawX(g) { |
---|
| 4318 | g.select(".extent").attr("x", extent[0][0]); |
---|
| 4319 | g.selectAll(".extent,.n>rect,.s>rect").attr("width", extent[1][0] - extent[0][0]); |
---|
| 4320 | } |
---|
| 4321 | |
---|
| 4322 | function redrawY(g) { |
---|
| 4323 | g.select(".extent").attr("y", extent[0][1]); |
---|
| 4324 | g.selectAll(".extent,.e>rect,.w>rect").attr("height", extent[1][1] - extent[0][1]); |
---|
| 4325 | } |
---|
| 4326 | |
---|
| 4327 | function brushstart() { |
---|
| 4328 | var target = this, |
---|
| 4329 | eventTarget = d3.select(d3.event.target), |
---|
| 4330 | event_ = event.of(target, arguments), |
---|
| 4331 | g = d3.select(target), |
---|
| 4332 | resizing = eventTarget.datum(), |
---|
| 4333 | resizingX = !/^(n|s)$/.test(resizing) && x, |
---|
| 4334 | resizingY = !/^(e|w)$/.test(resizing) && y, |
---|
| 4335 | dragging = eventTarget.classed("extent"), |
---|
| 4336 | center, |
---|
| 4337 | origin = mouse(), |
---|
| 4338 | offset; |
---|
| 4339 | |
---|
| 4340 | var w = d3.select(window) |
---|
| 4341 | .on("mousemove.brush", brushmove) |
---|
| 4342 | .on("mouseup.brush", brushend) |
---|
| 4343 | .on("touchmove.brush", brushmove) |
---|
| 4344 | .on("touchend.brush", brushend) |
---|
| 4345 | .on("keydown.brush", keydown) |
---|
| 4346 | .on("keyup.brush", keyup); |
---|
| 4347 | |
---|
| 4348 | // If the extent was clicked on, drag rather than brush; |
---|
| 4349 | // store the point between the mouse and extent origin instead. |
---|
| 4350 | if (dragging) { |
---|
| 4351 | origin[0] = extent[0][0] - origin[0]; |
---|
| 4352 | origin[1] = extent[0][1] - origin[1]; |
---|
| 4353 | } |
---|
| 4354 | |
---|
| 4355 | // If a resizer was clicked on, record which side is to be resized. |
---|
| 4356 | // Also, set the origin to the opposite side. |
---|
| 4357 | else if (resizing) { |
---|
| 4358 | var ex = +/w$/.test(resizing), |
---|
| 4359 | ey = +/^n/.test(resizing); |
---|
| 4360 | offset = [extent[1 - ex][0] - origin[0], extent[1 - ey][1] - origin[1]]; |
---|
| 4361 | origin[0] = extent[ex][0]; |
---|
| 4362 | origin[1] = extent[ey][1]; |
---|
| 4363 | } |
---|
| 4364 | |
---|
| 4365 | // If the ALT key is down when starting a brush, the center is at the mouse. |
---|
| 4366 | else if (d3.event.altKey) center = origin.slice(); |
---|
| 4367 | |
---|
| 4368 | // Propagate the active cursor to the body for the drag duration. |
---|
| 4369 | g.style("pointer-events", "none").selectAll(".resize").style("display", null); |
---|
| 4370 | d3.select("body").style("cursor", eventTarget.style("cursor")); |
---|
| 4371 | |
---|
| 4372 | // Notify listeners. |
---|
| 4373 | event_({type: "brushstart"}); |
---|
| 4374 | brushmove(); |
---|
| 4375 | d3_eventCancel(); |
---|
| 4376 | |
---|
| 4377 | function mouse() { |
---|
| 4378 | var touches = d3.event.changedTouches; |
---|
| 4379 | return touches ? d3.touches(target, touches)[0] : d3.mouse(target); |
---|
| 4380 | } |
---|
| 4381 | |
---|
| 4382 | function keydown() { |
---|
| 4383 | if (d3.event.keyCode == 32) { |
---|
| 4384 | if (!dragging) { |
---|
| 4385 | center = null; |
---|
| 4386 | origin[0] -= extent[1][0]; |
---|
| 4387 | origin[1] -= extent[1][1]; |
---|
| 4388 | dragging = 2; |
---|
| 4389 | } |
---|
| 4390 | d3_eventCancel(); |
---|
| 4391 | } |
---|
| 4392 | } |
---|
| 4393 | |
---|
| 4394 | function keyup() { |
---|
| 4395 | if (d3.event.keyCode == 32 && dragging == 2) { |
---|
| 4396 | origin[0] += extent[1][0]; |
---|
| 4397 | origin[1] += extent[1][1]; |
---|
| 4398 | dragging = 0; |
---|
| 4399 | d3_eventCancel(); |
---|
| 4400 | } |
---|
| 4401 | } |
---|
| 4402 | |
---|
| 4403 | function brushmove() { |
---|
| 4404 | var point = mouse(), |
---|
| 4405 | moved = false; |
---|
| 4406 | |
---|
| 4407 | // Preserve the offset for thick resizers. |
---|
| 4408 | if (offset) { |
---|
| 4409 | point[0] += offset[0]; |
---|
| 4410 | point[1] += offset[1]; |
---|
| 4411 | } |
---|
| 4412 | |
---|
| 4413 | if (!dragging) { |
---|
| 4414 | |
---|
| 4415 | // If needed, determine the center from the current extent. |
---|
| 4416 | if (d3.event.altKey) { |
---|
| 4417 | if (!center) center = [(extent[0][0] + extent[1][0]) / 2, (extent[0][1] + extent[1][1]) / 2]; |
---|
| 4418 | |
---|
| 4419 | // Update the origin, for when the ALT key is released. |
---|
| 4420 | origin[0] = extent[+(point[0] < center[0])][0]; |
---|
| 4421 | origin[1] = extent[+(point[1] < center[1])][1]; |
---|
| 4422 | } |
---|
| 4423 | |
---|
| 4424 | // When the ALT key is released, we clear the center. |
---|
| 4425 | else center = null; |
---|
| 4426 | } |
---|
| 4427 | |
---|
| 4428 | // Update the brush extent for each dimension. |
---|
| 4429 | if (resizingX && move1(point, x, 0)) { |
---|
| 4430 | redrawX(g); |
---|
| 4431 | moved = true; |
---|
| 4432 | } |
---|
| 4433 | if (resizingY && move1(point, y, 1)) { |
---|
| 4434 | redrawY(g); |
---|
| 4435 | moved = true; |
---|
| 4436 | } |
---|
| 4437 | |
---|
| 4438 | // Final redraw and notify listeners. |
---|
| 4439 | if (moved) { |
---|
| 4440 | redraw(g); |
---|
| 4441 | event_({type: "brush", mode: dragging ? "move" : "resize"}); |
---|
| 4442 | } |
---|
| 4443 | } |
---|
| 4444 | |
---|
| 4445 | function move1(point, scale, i) { |
---|
| 4446 | var range = d3_scaleRange(scale), |
---|
| 4447 | r0 = range[0], |
---|
| 4448 | r1 = range[1], |
---|
| 4449 | position = origin[i], |
---|
| 4450 | size = extent[1][i] - extent[0][i], |
---|
| 4451 | min, |
---|
| 4452 | max; |
---|
| 4453 | |
---|
| 4454 | // When dragging, reduce the range by the extent size and position. |
---|
| 4455 | if (dragging) { |
---|
| 4456 | r0 -= position; |
---|
| 4457 | r1 -= size + position; |
---|
| 4458 | } |
---|
| 4459 | |
---|
| 4460 | // Clamp the point so that the extent fits within the range extent. |
---|
| 4461 | min = Math.max(r0, Math.min(r1, point[i])); |
---|
| 4462 | |
---|
| 4463 | // Compute the new extent bounds. |
---|
| 4464 | if (dragging) { |
---|
| 4465 | max = (min += position) + size; |
---|
| 4466 | } else { |
---|
| 4467 | |
---|
| 4468 | // If the ALT key is pressed, then preserve the center of the extent. |
---|
| 4469 | if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min)); |
---|
| 4470 | |
---|
| 4471 | // Compute the min and max of the position and point. |
---|
| 4472 | if (position < min) { |
---|
| 4473 | max = min; |
---|
| 4474 | min = position; |
---|
| 4475 | } else { |
---|
| 4476 | max = position; |
---|
| 4477 | } |
---|
| 4478 | } |
---|
| 4479 | |
---|
| 4480 | // Update the stored bounds. |
---|
| 4481 | if (extent[0][i] !== min || extent[1][i] !== max) { |
---|
| 4482 | extentDomain = null; |
---|
| 4483 | extent[0][i] = min; |
---|
| 4484 | extent[1][i] = max; |
---|
| 4485 | return true; |
---|
| 4486 | } |
---|
| 4487 | } |
---|
| 4488 | |
---|
| 4489 | function brushend() { |
---|
| 4490 | brushmove(); |
---|
| 4491 | |
---|
| 4492 | // reset the cursor styles |
---|
| 4493 | g.style("pointer-events", "all").selectAll(".resize").style("display", brush.empty() ? "none" : null); |
---|
| 4494 | d3.select("body").style("cursor", null); |
---|
| 4495 | |
---|
| 4496 | w .on("mousemove.brush", null) |
---|
| 4497 | .on("mouseup.brush", null) |
---|
| 4498 | .on("touchmove.brush", null) |
---|
| 4499 | .on("touchend.brush", null) |
---|
| 4500 | .on("keydown.brush", null) |
---|
| 4501 | .on("keyup.brush", null); |
---|
| 4502 | |
---|
| 4503 | event_({type: "brushend"}); |
---|
| 4504 | d3_eventCancel(); |
---|
| 4505 | } |
---|
| 4506 | } |
---|
| 4507 | |
---|
| 4508 | brush.x = function(z) { |
---|
| 4509 | if (!arguments.length) return x; |
---|
| 4510 | x = z; |
---|
| 4511 | resizes = d3_svg_brushResizes[!x << 1 | !y]; // fore! |
---|
| 4512 | return brush; |
---|
| 4513 | }; |
---|
| 4514 | |
---|
| 4515 | brush.y = function(z) { |
---|
| 4516 | if (!arguments.length) return y; |
---|
| 4517 | y = z; |
---|
| 4518 | resizes = d3_svg_brushResizes[!x << 1 | !y]; // fore! |
---|
| 4519 | return brush; |
---|
| 4520 | }; |
---|
| 4521 | |
---|
| 4522 | brush.extent = function(z) { |
---|
| 4523 | var x0, x1, y0, y1, t; |
---|
| 4524 | |
---|
| 4525 | // Invert the pixel extent to data-space. |
---|
| 4526 | if (!arguments.length) { |
---|
| 4527 | z = extentDomain || extent; |
---|
| 4528 | if (x) { |
---|
| 4529 | x0 = z[0][0], x1 = z[1][0]; |
---|
| 4530 | if (!extentDomain) { |
---|
| 4531 | x0 = extent[0][0], x1 = extent[1][0]; |
---|
| 4532 | if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1); |
---|
| 4533 | if (x1 < x0) t = x0, x0 = x1, x1 = t; |
---|
| 4534 | } |
---|
| 4535 | } |
---|
| 4536 | if (y) { |
---|
| 4537 | y0 = z[0][1], y1 = z[1][1]; |
---|
| 4538 | if (!extentDomain) { |
---|
| 4539 | y0 = extent[0][1], y1 = extent[1][1]; |
---|
| 4540 | if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1); |
---|
| 4541 | if (y1 < y0) t = y0, y0 = y1, y1 = t; |
---|
| 4542 | } |
---|
| 4543 | } |
---|
| 4544 | return x && y ? [[x0, y0], [x1, y1]] : x ? [x0, x1] : y && [y0, y1]; |
---|
| 4545 | } |
---|
| 4546 | |
---|
| 4547 | // Scale the data-space extent to pixels. |
---|
| 4548 | extentDomain = [[0, 0], [0, 0]]; |
---|
| 4549 | if (x) { |
---|
| 4550 | x0 = z[0], x1 = z[1]; |
---|
| 4551 | if (y) x0 = x0[0], x1 = x1[0]; |
---|
| 4552 | extentDomain[0][0] = x0, extentDomain[1][0] = x1; |
---|
| 4553 | if (x.invert) x0 = x(x0), x1 = x(x1); |
---|
| 4554 | if (x1 < x0) t = x0, x0 = x1, x1 = t; |
---|
| 4555 | extent[0][0] = x0 | 0, extent[1][0] = x1 | 0; |
---|
| 4556 | } |
---|
| 4557 | if (y) { |
---|
| 4558 | y0 = z[0], y1 = z[1]; |
---|
| 4559 | if (x) y0 = y0[1], y1 = y1[1]; |
---|
| 4560 | extentDomain[0][1] = y0, extentDomain[1][1] = y1; |
---|
| 4561 | if (y.invert) y0 = y(y0), y1 = y(y1); |
---|
| 4562 | if (y1 < y0) t = y0, y0 = y1, y1 = t; |
---|
| 4563 | extent[0][1] = y0 | 0, extent[1][1] = y1 | 0; |
---|
| 4564 | } |
---|
| 4565 | |
---|
| 4566 | return brush; |
---|
| 4567 | }; |
---|
| 4568 | |
---|
| 4569 | brush.clear = function() { |
---|
| 4570 | extentDomain = null; |
---|
| 4571 | extent[0][0] = |
---|
| 4572 | extent[0][1] = |
---|
| 4573 | extent[1][0] = |
---|
| 4574 | extent[1][1] = 0; |
---|
| 4575 | return brush; |
---|
| 4576 | }; |
---|
| 4577 | |
---|
| 4578 | brush.empty = function() { |
---|
| 4579 | return (x && extent[0][0] === extent[1][0]) |
---|
| 4580 | || (y && extent[0][1] === extent[1][1]); |
---|
| 4581 | }; |
---|
| 4582 | |
---|
| 4583 | return d3.rebind(brush, event, "on"); |
---|
| 4584 | }; |
---|
| 4585 | |
---|
| 4586 | var d3_svg_brushCursor = { |
---|
| 4587 | n: "ns-resize", |
---|
| 4588 | e: "ew-resize", |
---|
| 4589 | s: "ns-resize", |
---|
| 4590 | w: "ew-resize", |
---|
| 4591 | nw: "nwse-resize", |
---|
| 4592 | ne: "nesw-resize", |
---|
| 4593 | se: "nwse-resize", |
---|
| 4594 | sw: "nesw-resize" |
---|
| 4595 | }; |
---|
| 4596 | |
---|
| 4597 | var d3_svg_brushResizes = [ |
---|
| 4598 | ["n", "e", "s", "w", "nw", "ne", "se", "sw"], |
---|
| 4599 | ["e", "w"], |
---|
| 4600 | ["n", "s"], |
---|
| 4601 | [] |
---|
| 4602 | ]; |
---|
| 4603 | d3.behavior = {}; |
---|
| 4604 | // TODO Track touch points by identifier. |
---|
| 4605 | |
---|
| 4606 | d3.behavior.drag = function() { |
---|
| 4607 | var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"), |
---|
| 4608 | origin = null; |
---|
| 4609 | |
---|
| 4610 | function drag() { |
---|
| 4611 | this.on("mousedown.drag", mousedown) |
---|
| 4612 | .on("touchstart.drag", mousedown); |
---|
| 4613 | } |
---|
| 4614 | |
---|
| 4615 | function mousedown() { |
---|
| 4616 | var target = this, |
---|
| 4617 | event_ = event.of(target, arguments), |
---|
| 4618 | eventTarget = d3.event.target, |
---|
| 4619 | offset, |
---|
| 4620 | origin_ = point(), |
---|
| 4621 | moved = 0; |
---|
| 4622 | |
---|
| 4623 | var w = d3.select(window) |
---|
| 4624 | .on("mousemove.drag", dragmove) |
---|
| 4625 | .on("touchmove.drag", dragmove) |
---|
| 4626 | .on("mouseup.drag", dragend, true) |
---|
| 4627 | .on("touchend.drag", dragend, true); |
---|
| 4628 | |
---|
| 4629 | if (origin) { |
---|
| 4630 | offset = origin.apply(target, arguments); |
---|
| 4631 | offset = [offset.x - origin_[0], offset.y - origin_[1]]; |
---|
| 4632 | } else { |
---|
| 4633 | offset = [0, 0]; |
---|
| 4634 | } |
---|
| 4635 | |
---|
| 4636 | event_({type: "dragstart"}); |
---|
| 4637 | |
---|
| 4638 | function point() { |
---|
| 4639 | var p = target.parentNode, |
---|
| 4640 | t = d3.event.changedTouches; |
---|
| 4641 | return t ? d3.touches(p, t)[0] : d3.mouse(p); |
---|
| 4642 | } |
---|
| 4643 | |
---|
| 4644 | function dragmove() { |
---|
| 4645 | if (!target.parentNode) return dragend(); // target removed from DOM |
---|
| 4646 | |
---|
| 4647 | var p = point(), |
---|
| 4648 | dx = p[0] - origin_[0], |
---|
| 4649 | dy = p[1] - origin_[1]; |
---|
| 4650 | |
---|
| 4651 | moved |= dx | dy; |
---|
| 4652 | origin_ = p; |
---|
| 4653 | d3_eventCancel(); |
---|
| 4654 | |
---|
| 4655 | event_({type: "drag", x: p[0] + offset[0], y: p[1] + offset[1], dx: dx, dy: dy}); |
---|
| 4656 | } |
---|
| 4657 | |
---|
| 4658 | function dragend() { |
---|
| 4659 | event_({type: "dragend"}); |
---|
| 4660 | |
---|
| 4661 | // if moved, prevent the mouseup (and possibly click) from propagating |
---|
| 4662 | if (moved) { |
---|
| 4663 | d3_eventCancel(); |
---|
| 4664 | if (d3.event.target === eventTarget) w.on("click.drag", click, true); |
---|
| 4665 | } |
---|
| 4666 | |
---|
| 4667 | w .on("mousemove.drag", null) |
---|
| 4668 | .on("touchmove.drag", null) |
---|
| 4669 | .on("mouseup.drag", null) |
---|
| 4670 | .on("touchend.drag", null); |
---|
| 4671 | } |
---|
| 4672 | |
---|
| 4673 | // prevent the subsequent click from propagating (e.g., for anchors) |
---|
| 4674 | function click() { |
---|
| 4675 | d3_eventCancel(); |
---|
| 4676 | w.on("click.drag", null); |
---|
| 4677 | } |
---|
| 4678 | } |
---|
| 4679 | |
---|
| 4680 | drag.origin = function(x) { |
---|
| 4681 | if (!arguments.length) return origin; |
---|
| 4682 | origin = x; |
---|
| 4683 | return drag; |
---|
| 4684 | }; |
---|
| 4685 | |
---|
| 4686 | return d3.rebind(drag, event, "on"); |
---|
| 4687 | }; |
---|
| 4688 | d3.behavior.zoom = function() { |
---|
| 4689 | var translate = [0, 0], |
---|
| 4690 | translate0, // translate when we started zooming (to avoid drift) |
---|
| 4691 | scale = 1, |
---|
| 4692 | scale0, // scale when we started touching |
---|
| 4693 | scaleExtent = d3_behavior_zoomInfinity, |
---|
| 4694 | event = d3_eventDispatch(zoom, "zoom"), |
---|
| 4695 | x0, |
---|
| 4696 | x1, |
---|
| 4697 | y0, |
---|
| 4698 | y1, |
---|
| 4699 | touchtime; // time of last touchstart (to detect double-tap) |
---|
| 4700 | |
---|
| 4701 | function zoom() { |
---|
| 4702 | this |
---|
| 4703 | .on("mousedown.zoom", mousedown) |
---|
| 4704 | .on("mousewheel.zoom", mousewheel) |
---|
| 4705 | .on("mousemove.zoom", mousemove) |
---|
| 4706 | .on("DOMMouseScroll.zoom", mousewheel) |
---|
| 4707 | .on("dblclick.zoom", dblclick) |
---|
| 4708 | .on("touchstart.zoom", touchstart) |
---|
| 4709 | .on("touchmove.zoom", touchmove) |
---|
| 4710 | .on("touchend.zoom", touchstart); |
---|
| 4711 | } |
---|
| 4712 | |
---|
| 4713 | zoom.translate = function(x) { |
---|
| 4714 | if (!arguments.length) return translate; |
---|
| 4715 | translate = x.map(Number); |
---|
| 4716 | return zoom; |
---|
| 4717 | }; |
---|
| 4718 | |
---|
| 4719 | zoom.scale = function(x) { |
---|
| 4720 | if (!arguments.length) return scale; |
---|
| 4721 | scale = +x; |
---|
| 4722 | return zoom; |
---|
| 4723 | }; |
---|
| 4724 | |
---|
| 4725 | zoom.scaleExtent = function(x) { |
---|
| 4726 | if (!arguments.length) return scaleExtent; |
---|
| 4727 | scaleExtent = x == null ? d3_behavior_zoomInfinity : x.map(Number); |
---|
| 4728 | return zoom; |
---|
| 4729 | }; |
---|
| 4730 | |
---|
| 4731 | zoom.x = function(z) { |
---|
| 4732 | if (!arguments.length) return x1; |
---|
| 4733 | x1 = z; |
---|
| 4734 | x0 = z.copy(); |
---|
| 4735 | return zoom; |
---|
| 4736 | }; |
---|
| 4737 | |
---|
| 4738 | zoom.y = function(z) { |
---|
| 4739 | if (!arguments.length) return y1; |
---|
| 4740 | y1 = z; |
---|
| 4741 | y0 = z.copy(); |
---|
| 4742 | return zoom; |
---|
| 4743 | }; |
---|
| 4744 | |
---|
| 4745 | function location(p) { |
---|
| 4746 | return [(p[0] - translate[0]) / scale, (p[1] - translate[1]) / scale]; |
---|
| 4747 | } |
---|
| 4748 | |
---|
| 4749 | function point(l) { |
---|
| 4750 | return [l[0] * scale + translate[0], l[1] * scale + translate[1]]; |
---|
| 4751 | } |
---|
| 4752 | |
---|
| 4753 | function scaleTo(s) { |
---|
| 4754 | scale = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s)); |
---|
| 4755 | } |
---|
| 4756 | |
---|
| 4757 | function translateTo(p, l) { |
---|
| 4758 | l = point(l); |
---|
| 4759 | translate[0] += p[0] - l[0]; |
---|
| 4760 | translate[1] += p[1] - l[1]; |
---|
| 4761 | } |
---|
| 4762 | |
---|
| 4763 | function dispatch(event) { |
---|
| 4764 | if (x1) x1.domain(x0.range().map(function(x) { return (x - translate[0]) / scale; }).map(x0.invert)); |
---|
| 4765 | if (y1) y1.domain(y0.range().map(function(y) { return (y - translate[1]) / scale; }).map(y0.invert)); |
---|
| 4766 | d3.event.preventDefault(); |
---|
| 4767 | event({type: "zoom", scale: scale, translate: translate}); |
---|
| 4768 | } |
---|
| 4769 | |
---|
| 4770 | function mousedown() { |
---|
| 4771 | var target = this, |
---|
| 4772 | event_ = event.of(target, arguments), |
---|
| 4773 | eventTarget = d3.event.target, |
---|
| 4774 | moved = 0, |
---|
| 4775 | w = d3.select(window).on("mousemove.zoom", mousemove).on("mouseup.zoom", mouseup), |
---|
| 4776 | l = location(d3.mouse(target)); |
---|
| 4777 | |
---|
| 4778 | window.focus(); |
---|
| 4779 | d3_eventCancel(); |
---|
| 4780 | |
---|
| 4781 | function mousemove() { |
---|
| 4782 | moved = 1; |
---|
| 4783 | translateTo(d3.mouse(target), l); |
---|
| 4784 | dispatch(event_); |
---|
| 4785 | } |
---|
| 4786 | |
---|
| 4787 | function mouseup() { |
---|
| 4788 | if (moved) d3_eventCancel(); |
---|
| 4789 | w.on("mousemove.zoom", null).on("mouseup.zoom", null); |
---|
| 4790 | if (moved && d3.event.target === eventTarget) w.on("click.zoom", click); |
---|
| 4791 | } |
---|
| 4792 | |
---|
| 4793 | function click() { |
---|
| 4794 | d3_eventCancel(); |
---|
| 4795 | w.on("click.zoom", null); |
---|
| 4796 | } |
---|
| 4797 | } |
---|
| 4798 | |
---|
| 4799 | function mousewheel() { |
---|
| 4800 | if (!translate0) translate0 = location(d3.mouse(this)); |
---|
| 4801 | scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * scale); |
---|
| 4802 | translateTo(d3.mouse(this), translate0); |
---|
| 4803 | dispatch(event.of(this, arguments)); |
---|
| 4804 | } |
---|
| 4805 | |
---|
| 4806 | function mousemove() { |
---|
| 4807 | translate0 = null; |
---|
| 4808 | } |
---|
| 4809 | |
---|
| 4810 | function dblclick() { |
---|
| 4811 | var p = d3.mouse(this), l = location(p); |
---|
| 4812 | scaleTo(d3.event.shiftKey ? scale / 2 : scale * 2); |
---|
| 4813 | translateTo(p, l); |
---|
| 4814 | dispatch(event.of(this, arguments)); |
---|
| 4815 | } |
---|
| 4816 | |
---|
| 4817 | function touchstart() { |
---|
| 4818 | var touches = d3.touches(this), |
---|
| 4819 | now = Date.now(); |
---|
| 4820 | |
---|
| 4821 | scale0 = scale; |
---|
| 4822 | translate0 = {}; |
---|
| 4823 | touches.forEach(function(t) { translate0[t.identifier] = location(t); }); |
---|
| 4824 | d3_eventCancel(); |
---|
| 4825 | |
---|
| 4826 | if ((touches.length === 1) && (now - touchtime < 500)) { // dbltap |
---|
| 4827 | var p = touches[0], l = location(touches[0]); |
---|
| 4828 | scaleTo(scale * 2); |
---|
| 4829 | translateTo(p, l); |
---|
| 4830 | dispatch(event.of(this, arguments)); |
---|
| 4831 | } |
---|
| 4832 | touchtime = now; |
---|
| 4833 | } |
---|
| 4834 | |
---|
| 4835 | function touchmove() { |
---|
| 4836 | var touches = d3.touches(this), |
---|
| 4837 | p0 = touches[0], |
---|
| 4838 | l0 = translate0[p0.identifier]; |
---|
| 4839 | if (p1 = touches[1]) { |
---|
| 4840 | var p1, l1 = translate0[p1.identifier]; |
---|
| 4841 | p0 = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2]; |
---|
| 4842 | l0 = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2]; |
---|
| 4843 | scaleTo(d3.event.scale * scale0); |
---|
| 4844 | } |
---|
| 4845 | translateTo(p0, l0); |
---|
| 4846 | dispatch(event.of(this, arguments)); |
---|
| 4847 | } |
---|
| 4848 | |
---|
| 4849 | return d3.rebind(zoom, event, "on"); |
---|
| 4850 | }; |
---|
| 4851 | |
---|
| 4852 | var d3_behavior_zoomDiv, // for interpreting mousewheel events |
---|
| 4853 | d3_behavior_zoomInfinity = [0, Infinity]; // default scale extent |
---|
| 4854 | |
---|
| 4855 | function d3_behavior_zoomDelta() { |
---|
| 4856 | |
---|
| 4857 | // mousewheel events are totally broken! |
---|
| 4858 | // https://bugs.webkit.org/show_bug.cgi?id=40441 |
---|
| 4859 | // not only that, but Chrome and Safari differ in re. to acceleration! |
---|
| 4860 | if (!d3_behavior_zoomDiv) { |
---|
| 4861 | d3_behavior_zoomDiv = d3.select("body").append("div") |
---|
| 4862 | .style("visibility", "hidden") |
---|
| 4863 | .style("top", 0) |
---|
| 4864 | .style("height", 0) |
---|
| 4865 | .style("width", 0) |
---|
| 4866 | .style("overflow-y", "scroll") |
---|
| 4867 | .append("div") |
---|
| 4868 | .style("height", "2000px") |
---|
| 4869 | .node().parentNode; |
---|
| 4870 | } |
---|
| 4871 | |
---|
| 4872 | var e = d3.event, delta; |
---|
| 4873 | try { |
---|
| 4874 | d3_behavior_zoomDiv.scrollTop = 1000; |
---|
| 4875 | d3_behavior_zoomDiv.dispatchEvent(e); |
---|
| 4876 | delta = 1000 - d3_behavior_zoomDiv.scrollTop; |
---|
| 4877 | } catch (error) { |
---|
| 4878 | delta = e.wheelDelta || (-e.detail * 5); |
---|
| 4879 | } |
---|
| 4880 | |
---|
| 4881 | return delta; |
---|
| 4882 | } |
---|
| 4883 | d3.layout = {}; |
---|
| 4884 | // Implements hierarchical edge bundling using Holten's algorithm. For each |
---|
| 4885 | // input link, a path is computed that travels through the tree, up the parent |
---|
| 4886 | // hierarchy to the least common ancestor, and then back down to the destination |
---|
| 4887 | // node. Each path is simply an array of nodes. |
---|
| 4888 | d3.layout.bundle = function() { |
---|
| 4889 | return function(links) { |
---|
| 4890 | var paths = [], |
---|
| 4891 | i = -1, |
---|
| 4892 | n = links.length; |
---|
| 4893 | while (++i < n) paths.push(d3_layout_bundlePath(links[i])); |
---|
| 4894 | return paths; |
---|
| 4895 | }; |
---|
| 4896 | }; |
---|
| 4897 | |
---|
| 4898 | function d3_layout_bundlePath(link) { |
---|
| 4899 | var start = link.source, |
---|
| 4900 | end = link.target, |
---|
| 4901 | lca = d3_layout_bundleLeastCommonAncestor(start, end), |
---|
| 4902 | points = [start]; |
---|
| 4903 | while (start !== lca) { |
---|
| 4904 | start = start.parent; |
---|
| 4905 | points.push(start); |
---|
| 4906 | } |
---|
| 4907 | var k = points.length; |
---|
| 4908 | while (end !== lca) { |
---|
| 4909 | points.splice(k, 0, end); |
---|
| 4910 | end = end.parent; |
---|
| 4911 | } |
---|
| 4912 | return points; |
---|
| 4913 | } |
---|
| 4914 | |
---|
| 4915 | function d3_layout_bundleAncestors(node) { |
---|
| 4916 | var ancestors = [], |
---|
| 4917 | parent = node.parent; |
---|
| 4918 | while (parent != null) { |
---|
| 4919 | ancestors.push(node); |
---|
| 4920 | node = parent; |
---|
| 4921 | parent = parent.parent; |
---|
| 4922 | } |
---|
| 4923 | ancestors.push(node); |
---|
| 4924 | return ancestors; |
---|
| 4925 | } |
---|
| 4926 | |
---|
| 4927 | function d3_layout_bundleLeastCommonAncestor(a, b) { |
---|
| 4928 | if (a === b) return a; |
---|
| 4929 | var aNodes = d3_layout_bundleAncestors(a), |
---|
| 4930 | bNodes = d3_layout_bundleAncestors(b), |
---|
| 4931 | aNode = aNodes.pop(), |
---|
| 4932 | bNode = bNodes.pop(), |
---|
| 4933 | sharedNode = null; |
---|
| 4934 | while (aNode === bNode) { |
---|
| 4935 | sharedNode = aNode; |
---|
| 4936 | aNode = aNodes.pop(); |
---|
| 4937 | bNode = bNodes.pop(); |
---|
| 4938 | } |
---|
| 4939 | return sharedNode; |
---|
| 4940 | } |
---|
| 4941 | d3.layout.chord = function() { |
---|
| 4942 | var chord = {}, |
---|
| 4943 | chords, |
---|
| 4944 | groups, |
---|
| 4945 | matrix, |
---|
| 4946 | n, |
---|
| 4947 | padding = 0, |
---|
| 4948 | sortGroups, |
---|
| 4949 | sortSubgroups, |
---|
| 4950 | sortChords; |
---|
| 4951 | |
---|
| 4952 | function relayout() { |
---|
| 4953 | var subgroups = {}, |
---|
| 4954 | groupSums = [], |
---|
| 4955 | groupIndex = d3.range(n), |
---|
| 4956 | subgroupIndex = [], |
---|
| 4957 | k, |
---|
| 4958 | x, |
---|
| 4959 | x0, |
---|
| 4960 | i, |
---|
| 4961 | j; |
---|
| 4962 | |
---|
| 4963 | chords = []; |
---|
| 4964 | groups = []; |
---|
| 4965 | |
---|
| 4966 | // Compute the sum. |
---|
| 4967 | k = 0, i = -1; while (++i < n) { |
---|
| 4968 | x = 0, j = -1; while (++j < n) { |
---|
| 4969 | x += matrix[i][j]; |
---|
| 4970 | } |
---|
| 4971 | groupSums.push(x); |
---|
| 4972 | subgroupIndex.push(d3.range(n)); |
---|
| 4973 | k += x; |
---|
| 4974 | } |
---|
| 4975 | |
---|
| 4976 | // Sort groups⊠|
---|
| 4977 | if (sortGroups) { |
---|
| 4978 | groupIndex.sort(function(a, b) { |
---|
| 4979 | return sortGroups(groupSums[a], groupSums[b]); |
---|
| 4980 | }); |
---|
| 4981 | } |
---|
| 4982 | |
---|
| 4983 | // Sort subgroups⊠|
---|
| 4984 | if (sortSubgroups) { |
---|
| 4985 | subgroupIndex.forEach(function(d, i) { |
---|
| 4986 | d.sort(function(a, b) { |
---|
| 4987 | return sortSubgroups(matrix[i][a], matrix[i][b]); |
---|
| 4988 | }); |
---|
| 4989 | }); |
---|
| 4990 | } |
---|
| 4991 | |
---|
| 4992 | // Convert the sum to scaling factor for [0, 2pi]. |
---|
| 4993 | // TODO Allow start and end angle to be specified. |
---|
| 4994 | // TODO Allow padding to be specified as percentage? |
---|
| 4995 | k = (2 * Math.PI - padding * n) / k; |
---|
| 4996 | |
---|
| 4997 | // Compute the start and end angle for each group and subgroup. |
---|
| 4998 | // Note: Opera has a bug reordering object literal properties! |
---|
| 4999 | x = 0, i = -1; while (++i < n) { |
---|
| 5000 | x0 = x, j = -1; while (++j < n) { |
---|
| 5001 | var di = groupIndex[i], |
---|
| 5002 | dj = subgroupIndex[di][j], |
---|
| 5003 | v = matrix[di][dj], |
---|
| 5004 | a0 = x, |
---|
| 5005 | a1 = x += v * k; |
---|
| 5006 | subgroups[di + "-" + dj] = { |
---|
| 5007 | index: di, |
---|
| 5008 | subindex: dj, |
---|
| 5009 | startAngle: a0, |
---|
| 5010 | endAngle: a1, |
---|
| 5011 | value: v |
---|
| 5012 | }; |
---|
| 5013 | } |
---|
| 5014 | groups.push({ |
---|
| 5015 | index: di, |
---|
| 5016 | startAngle: x0, |
---|
| 5017 | endAngle: x, |
---|
| 5018 | value: (x - x0) / k |
---|
| 5019 | }); |
---|
| 5020 | x += padding; |
---|
| 5021 | } |
---|
| 5022 | |
---|
| 5023 | // Generate chords for each (non-empty) subgroup-subgroup link. |
---|
| 5024 | i = -1; while (++i < n) { |
---|
| 5025 | j = i - 1; while (++j < n) { |
---|
| 5026 | var source = subgroups[i + "-" + j], |
---|
| 5027 | target = subgroups[j + "-" + i]; |
---|
| 5028 | if (source.value || target.value) { |
---|
| 5029 | chords.push(source.value < target.value |
---|
| 5030 | ? {source: target, target: source} |
---|
| 5031 | : {source: source, target: target}); |
---|
| 5032 | } |
---|
| 5033 | } |
---|
| 5034 | } |
---|
| 5035 | |
---|
| 5036 | if (sortChords) resort(); |
---|
| 5037 | } |
---|
| 5038 | |
---|
| 5039 | function resort() { |
---|
| 5040 | chords.sort(function(a, b) { |
---|
| 5041 | return sortChords( |
---|
| 5042 | (a.source.value + a.target.value) / 2, |
---|
| 5043 | (b.source.value + b.target.value) / 2); |
---|
| 5044 | }); |
---|
| 5045 | } |
---|
| 5046 | |
---|
| 5047 | chord.matrix = function(x) { |
---|
| 5048 | if (!arguments.length) return matrix; |
---|
| 5049 | n = (matrix = x) && matrix.length; |
---|
| 5050 | chords = groups = null; |
---|
| 5051 | return chord; |
---|
| 5052 | }; |
---|
| 5053 | |
---|
| 5054 | chord.padding = function(x) { |
---|
| 5055 | if (!arguments.length) return padding; |
---|
| 5056 | padding = x; |
---|
| 5057 | chords = groups = null; |
---|
| 5058 | return chord; |
---|
| 5059 | }; |
---|
| 5060 | |
---|
| 5061 | chord.sortGroups = function(x) { |
---|
| 5062 | if (!arguments.length) return sortGroups; |
---|
| 5063 | sortGroups = x; |
---|
| 5064 | chords = groups = null; |
---|
| 5065 | return chord; |
---|
| 5066 | }; |
---|
| 5067 | |
---|
| 5068 | chord.sortSubgroups = function(x) { |
---|
| 5069 | if (!arguments.length) return sortSubgroups; |
---|
| 5070 | sortSubgroups = x; |
---|
| 5071 | chords = null; |
---|
| 5072 | return chord; |
---|
| 5073 | }; |
---|
| 5074 | |
---|
| 5075 | chord.sortChords = function(x) { |
---|
| 5076 | if (!arguments.length) return sortChords; |
---|
| 5077 | sortChords = x; |
---|
| 5078 | if (chords) resort(); |
---|
| 5079 | return chord; |
---|
| 5080 | }; |
---|
| 5081 | |
---|
| 5082 | chord.chords = function() { |
---|
| 5083 | if (!chords) relayout(); |
---|
| 5084 | return chords; |
---|
| 5085 | }; |
---|
| 5086 | |
---|
| 5087 | chord.groups = function() { |
---|
| 5088 | if (!groups) relayout(); |
---|
| 5089 | return groups; |
---|
| 5090 | }; |
---|
| 5091 | |
---|
| 5092 | return chord; |
---|
| 5093 | }; |
---|
| 5094 | // A rudimentary force layout using Gauss-Seidel. |
---|
| 5095 | d3.layout.force = function() { |
---|
| 5096 | var force = {}, |
---|
| 5097 | event = d3.dispatch("start", "tick", "end"), |
---|
| 5098 | size = [1, 1], |
---|
| 5099 | drag, |
---|
| 5100 | alpha, |
---|
| 5101 | friction = .9, |
---|
| 5102 | linkDistance = d3_layout_forceLinkDistance, |
---|
| 5103 | linkStrength = d3_layout_forceLinkStrength, |
---|
| 5104 | charge = -30, |
---|
| 5105 | gravity = .1, |
---|
| 5106 | theta = .8, |
---|
| 5107 | interval, |
---|
| 5108 | nodes = [], |
---|
| 5109 | links = [], |
---|
| 5110 | distances, |
---|
| 5111 | strengths, |
---|
| 5112 | charges; |
---|
| 5113 | |
---|
| 5114 | function repulse(node) { |
---|
| 5115 | return function(quad, x1, y1, x2, y2) { |
---|
| 5116 | if (quad.point !== node) { |
---|
| 5117 | var dx = quad.cx - node.x, |
---|
| 5118 | dy = quad.cy - node.y, |
---|
| 5119 | dn = 1 / Math.sqrt(dx * dx + dy * dy); |
---|
| 5120 | |
---|
| 5121 | /* Barnes-Hut criterion. */ |
---|
| 5122 | if ((x2 - x1) * dn < theta) { |
---|
| 5123 | var k = quad.charge * dn * dn; |
---|
| 5124 | node.px -= dx * k; |
---|
| 5125 | node.py -= dy * k; |
---|
| 5126 | return true; |
---|
| 5127 | } |
---|
| 5128 | |
---|
| 5129 | if (quad.point && isFinite(dn)) { |
---|
| 5130 | var k = quad.pointCharge * dn * dn; |
---|
| 5131 | node.px -= dx * k; |
---|
| 5132 | node.py -= dy * k; |
---|
| 5133 | } |
---|
| 5134 | } |
---|
| 5135 | return !quad.charge; |
---|
| 5136 | }; |
---|
| 5137 | } |
---|
| 5138 | |
---|
| 5139 | force.tick = function() { |
---|
| 5140 | // simulated annealing, basically |
---|
| 5141 | if ((alpha *= .99) < .005) { |
---|
| 5142 | event.end({type: "end", alpha: alpha = 0}); |
---|
| 5143 | return true; |
---|
| 5144 | } |
---|
| 5145 | |
---|
| 5146 | var n = nodes.length, |
---|
| 5147 | m = links.length, |
---|
| 5148 | q, |
---|
| 5149 | i, // current index |
---|
| 5150 | o, // current object |
---|
| 5151 | s, // current source |
---|
| 5152 | t, // current target |
---|
| 5153 | l, // current distance |
---|
| 5154 | k, // current force |
---|
| 5155 | x, // x-distance |
---|
| 5156 | y; // y-distance |
---|
| 5157 | |
---|
| 5158 | // gauss-seidel relaxation for links |
---|
| 5159 | for (i = 0; i < m; ++i) { |
---|
| 5160 | o = links[i]; |
---|
| 5161 | s = o.source; |
---|
| 5162 | t = o.target; |
---|
| 5163 | x = t.x - s.x; |
---|
| 5164 | y = t.y - s.y; |
---|
| 5165 | if (l = (x * x + y * y)) { |
---|
| 5166 | l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l; |
---|
| 5167 | x *= l; |
---|
| 5168 | y *= l; |
---|
| 5169 | t.x -= x * (k = s.weight / (t.weight + s.weight)); |
---|
| 5170 | t.y -= y * k; |
---|
| 5171 | s.x += x * (k = 1 - k); |
---|
| 5172 | s.y += y * k; |
---|
| 5173 | } |
---|
| 5174 | } |
---|
| 5175 | |
---|
| 5176 | // apply gravity forces |
---|
| 5177 | if (k = alpha * gravity) { |
---|
| 5178 | x = size[0] / 2; |
---|
| 5179 | y = size[1] / 2; |
---|
| 5180 | i = -1; if (k) while (++i < n) { |
---|
| 5181 | o = nodes[i]; |
---|
| 5182 | o.x += (x - o.x) * k; |
---|
| 5183 | o.y += (y - o.y) * k; |
---|
| 5184 | } |
---|
| 5185 | } |
---|
| 5186 | |
---|
| 5187 | // compute quadtree center of mass and apply charge forces |
---|
| 5188 | if (charge) { |
---|
| 5189 | d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges); |
---|
| 5190 | i = -1; while (++i < n) { |
---|
| 5191 | if (!(o = nodes[i]).fixed) { |
---|
| 5192 | q.visit(repulse(o)); |
---|
| 5193 | } |
---|
| 5194 | } |
---|
| 5195 | } |
---|
| 5196 | |
---|
| 5197 | // position verlet integration |
---|
| 5198 | i = -1; while (++i < n) { |
---|
| 5199 | o = nodes[i]; |
---|
| 5200 | if (o.fixed) { |
---|
| 5201 | o.x = o.px; |
---|
| 5202 | o.y = o.py; |
---|
| 5203 | } else { |
---|
| 5204 | o.x -= (o.px - (o.px = o.x)) * friction; |
---|
| 5205 | o.y -= (o.py - (o.py = o.y)) * friction; |
---|
| 5206 | } |
---|
| 5207 | } |
---|
| 5208 | |
---|
| 5209 | event.tick({type: "tick", alpha: alpha}); |
---|
| 5210 | }; |
---|
| 5211 | |
---|
| 5212 | force.nodes = function(x) { |
---|
| 5213 | if (!arguments.length) return nodes; |
---|
| 5214 | nodes = x; |
---|
| 5215 | return force; |
---|
| 5216 | }; |
---|
| 5217 | |
---|
| 5218 | force.links = function(x) { |
---|
| 5219 | if (!arguments.length) return links; |
---|
| 5220 | links = x; |
---|
| 5221 | return force; |
---|
| 5222 | }; |
---|
| 5223 | |
---|
| 5224 | force.size = function(x) { |
---|
| 5225 | if (!arguments.length) return size; |
---|
| 5226 | size = x; |
---|
| 5227 | return force; |
---|
| 5228 | }; |
---|
| 5229 | |
---|
| 5230 | force.linkDistance = function(x) { |
---|
| 5231 | if (!arguments.length) return linkDistance; |
---|
| 5232 | linkDistance = d3.functor(x); |
---|
| 5233 | return force; |
---|
| 5234 | }; |
---|
| 5235 | |
---|
| 5236 | // For backwards-compatibility. |
---|
| 5237 | force.distance = force.linkDistance; |
---|
| 5238 | |
---|
| 5239 | force.linkStrength = function(x) { |
---|
| 5240 | if (!arguments.length) return linkStrength; |
---|
| 5241 | linkStrength = d3.functor(x); |
---|
| 5242 | return force; |
---|
| 5243 | }; |
---|
| 5244 | |
---|
| 5245 | force.friction = function(x) { |
---|
| 5246 | if (!arguments.length) return friction; |
---|
| 5247 | friction = x; |
---|
| 5248 | return force; |
---|
| 5249 | }; |
---|
| 5250 | |
---|
| 5251 | force.charge = function(x) { |
---|
| 5252 | if (!arguments.length) return charge; |
---|
| 5253 | charge = typeof x === "function" ? x : +x; |
---|
| 5254 | return force; |
---|
| 5255 | }; |
---|
| 5256 | |
---|
| 5257 | force.gravity = function(x) { |
---|
| 5258 | if (!arguments.length) return gravity; |
---|
| 5259 | gravity = x; |
---|
| 5260 | return force; |
---|
| 5261 | }; |
---|
| 5262 | |
---|
| 5263 | force.theta = function(x) { |
---|
| 5264 | if (!arguments.length) return theta; |
---|
| 5265 | theta = x; |
---|
| 5266 | return force; |
---|
| 5267 | }; |
---|
| 5268 | |
---|
| 5269 | force.alpha = function(x) { |
---|
| 5270 | if (!arguments.length) return alpha; |
---|
| 5271 | |
---|
| 5272 | if (alpha) { // if we're already running |
---|
| 5273 | if (x > 0) alpha = x; // we might keep it hot |
---|
| 5274 | else alpha = 0; // or, next tick will dispatch "end" |
---|
| 5275 | } else if (x > 0) { // otherwise, fire it up! |
---|
| 5276 | event.start({type: "start", alpha: alpha = x}); |
---|
| 5277 | d3.timer(force.tick); |
---|
| 5278 | } |
---|
| 5279 | |
---|
| 5280 | return force; |
---|
| 5281 | }; |
---|
| 5282 | |
---|
| 5283 | force.start = function() { |
---|
| 5284 | var i, |
---|
| 5285 | j, |
---|
| 5286 | n = nodes.length, |
---|
| 5287 | m = links.length, |
---|
| 5288 | w = size[0], |
---|
| 5289 | h = size[1], |
---|
| 5290 | neighbors, |
---|
| 5291 | o; |
---|
| 5292 | |
---|
| 5293 | for (i = 0; i < n; ++i) { |
---|
| 5294 | (o = nodes[i]).index = i; |
---|
| 5295 | o.weight = 0; |
---|
| 5296 | } |
---|
| 5297 | |
---|
| 5298 | distances = []; |
---|
| 5299 | strengths = []; |
---|
| 5300 | for (i = 0; i < m; ++i) { |
---|
| 5301 | o = links[i]; |
---|
| 5302 | if (typeof o.source == "number") o.source = nodes[o.source]; |
---|
| 5303 | if (typeof o.target == "number") o.target = nodes[o.target]; |
---|
| 5304 | distances[i] = linkDistance.call(this, o, i); |
---|
| 5305 | strengths[i] = linkStrength.call(this, o, i); |
---|
| 5306 | ++o.source.weight; |
---|
| 5307 | ++o.target.weight; |
---|
| 5308 | } |
---|
| 5309 | |
---|
| 5310 | for (i = 0; i < n; ++i) { |
---|
| 5311 | o = nodes[i]; |
---|
| 5312 | if (isNaN(o.x)) o.x = position("x", w); |
---|
| 5313 | if (isNaN(o.y)) o.y = position("y", h); |
---|
| 5314 | if (isNaN(o.px)) o.px = o.x; |
---|
| 5315 | if (isNaN(o.py)) o.py = o.y; |
---|
| 5316 | } |
---|
| 5317 | |
---|
| 5318 | charges = []; |
---|
| 5319 | if (typeof charge === "function") { |
---|
| 5320 | for (i = 0; i < n; ++i) { |
---|
| 5321 | charges[i] = +charge.call(this, nodes[i], i); |
---|
| 5322 | } |
---|
| 5323 | } else { |
---|
| 5324 | for (i = 0; i < n; ++i) { |
---|
| 5325 | charges[i] = charge; |
---|
| 5326 | } |
---|
| 5327 | } |
---|
| 5328 | |
---|
| 5329 | // initialize node position based on first neighbor |
---|
| 5330 | function position(dimension, size) { |
---|
| 5331 | var neighbors = neighbor(i), |
---|
| 5332 | j = -1, |
---|
| 5333 | m = neighbors.length, |
---|
| 5334 | x; |
---|
| 5335 | while (++j < m) if (!isNaN(x = neighbors[j][dimension])) return x; |
---|
| 5336 | return Math.random() * size; |
---|
| 5337 | } |
---|
| 5338 | |
---|
| 5339 | // initialize neighbors lazily |
---|
| 5340 | function neighbor() { |
---|
| 5341 | if (!neighbors) { |
---|
| 5342 | neighbors = []; |
---|
| 5343 | for (j = 0; j < n; ++j) { |
---|
| 5344 | neighbors[j] = []; |
---|
| 5345 | } |
---|
| 5346 | for (j = 0; j < m; ++j) { |
---|
| 5347 | var o = links[j]; |
---|
| 5348 | neighbors[o.source.index].push(o.target); |
---|
| 5349 | neighbors[o.target.index].push(o.source); |
---|
| 5350 | } |
---|
| 5351 | } |
---|
| 5352 | return neighbors[i]; |
---|
| 5353 | } |
---|
| 5354 | |
---|
| 5355 | return force.resume(); |
---|
| 5356 | }; |
---|
| 5357 | |
---|
| 5358 | force.resume = function() { |
---|
| 5359 | return force.alpha(.1); |
---|
| 5360 | }; |
---|
| 5361 | |
---|
| 5362 | force.stop = function() { |
---|
| 5363 | return force.alpha(0); |
---|
| 5364 | }; |
---|
| 5365 | |
---|
| 5366 | // use `node.call(force.drag)` to make nodes draggable |
---|
| 5367 | force.drag = function() { |
---|
| 5368 | if (!drag) drag = d3.behavior.drag() |
---|
| 5369 | .origin(Object) |
---|
| 5370 | .on("dragstart", dragstart) |
---|
| 5371 | .on("drag", d3_layout_forceDrag) |
---|
| 5372 | .on("dragend", d3_layout_forceDragEnd); |
---|
| 5373 | |
---|
| 5374 | this.on("mouseover.force", d3_layout_forceDragOver) |
---|
| 5375 | .on("mouseout.force", d3_layout_forceDragOut) |
---|
| 5376 | .call(drag); |
---|
| 5377 | }; |
---|
| 5378 | |
---|
| 5379 | function dragstart(d) { |
---|
| 5380 | d3_layout_forceDragOver(d3_layout_forceDragNode = d); |
---|
| 5381 | d3_layout_forceDragForce = force; |
---|
| 5382 | } |
---|
| 5383 | |
---|
| 5384 | return d3.rebind(force, event, "on"); |
---|
| 5385 | }; |
---|
| 5386 | |
---|
| 5387 | var d3_layout_forceDragForce, |
---|
| 5388 | d3_layout_forceDragNode; |
---|
| 5389 | |
---|
| 5390 | function d3_layout_forceDragOver(d) { |
---|
| 5391 | d.fixed |= 2; |
---|
| 5392 | } |
---|
| 5393 | |
---|
| 5394 | function d3_layout_forceDragOut(d) { |
---|
| 5395 | if (d !== d3_layout_forceDragNode) d.fixed &= 1; |
---|
| 5396 | } |
---|
| 5397 | |
---|
| 5398 | function d3_layout_forceDragEnd() { |
---|
| 5399 | d3_layout_forceDragNode.fixed &= 1; |
---|
| 5400 | d3_layout_forceDragForce = d3_layout_forceDragNode = null; |
---|
| 5401 | } |
---|
| 5402 | |
---|
| 5403 | function d3_layout_forceDrag() { |
---|
| 5404 | d3_layout_forceDragNode.px = d3.event.x; |
---|
| 5405 | d3_layout_forceDragNode.py = d3.event.y; |
---|
| 5406 | d3_layout_forceDragForce.resume(); // restart annealing |
---|
| 5407 | } |
---|
| 5408 | |
---|
| 5409 | function d3_layout_forceAccumulate(quad, alpha, charges) { |
---|
| 5410 | var cx = 0, |
---|
| 5411 | cy = 0; |
---|
| 5412 | quad.charge = 0; |
---|
| 5413 | if (!quad.leaf) { |
---|
| 5414 | var nodes = quad.nodes, |
---|
| 5415 | n = nodes.length, |
---|
| 5416 | i = -1, |
---|
| 5417 | c; |
---|
| 5418 | while (++i < n) { |
---|
| 5419 | c = nodes[i]; |
---|
| 5420 | if (c == null) continue; |
---|
| 5421 | d3_layout_forceAccumulate(c, alpha, charges); |
---|
| 5422 | quad.charge += c.charge; |
---|
| 5423 | cx += c.charge * c.cx; |
---|
| 5424 | cy += c.charge * c.cy; |
---|
| 5425 | } |
---|
| 5426 | } |
---|
| 5427 | if (quad.point) { |
---|
| 5428 | // jitter internal nodes that are coincident |
---|
| 5429 | if (!quad.leaf) { |
---|
| 5430 | quad.point.x += Math.random() - .5; |
---|
| 5431 | quad.point.y += Math.random() - .5; |
---|
| 5432 | } |
---|
| 5433 | var k = alpha * charges[quad.point.index]; |
---|
| 5434 | quad.charge += quad.pointCharge = k; |
---|
| 5435 | cx += k * quad.point.x; |
---|
| 5436 | cy += k * quad.point.y; |
---|
| 5437 | } |
---|
| 5438 | quad.cx = cx / quad.charge; |
---|
| 5439 | quad.cy = cy / quad.charge; |
---|
| 5440 | } |
---|
| 5441 | |
---|
| 5442 | function d3_layout_forceLinkDistance(link) { |
---|
| 5443 | return 20; |
---|
| 5444 | } |
---|
| 5445 | |
---|
| 5446 | function d3_layout_forceLinkStrength(link) { |
---|
| 5447 | return 1; |
---|
| 5448 | } |
---|
| 5449 | d3.layout.partition = function() { |
---|
| 5450 | var hierarchy = d3.layout.hierarchy(), |
---|
| 5451 | size = [1, 1]; // width, height |
---|
| 5452 | |
---|
| 5453 | function position(node, x, dx, dy) { |
---|
| 5454 | var children = node.children; |
---|
| 5455 | node.x = x; |
---|
| 5456 | node.y = node.depth * dy; |
---|
| 5457 | node.dx = dx; |
---|
| 5458 | node.dy = dy; |
---|
| 5459 | if (children && (n = children.length)) { |
---|
| 5460 | var i = -1, |
---|
| 5461 | n, |
---|
| 5462 | c, |
---|
| 5463 | d; |
---|
| 5464 | dx = node.value ? dx / node.value : 0; |
---|
| 5465 | while (++i < n) { |
---|
| 5466 | position(c = children[i], x, d = c.value * dx, dy); |
---|
| 5467 | x += d; |
---|
| 5468 | } |
---|
| 5469 | } |
---|
| 5470 | } |
---|
| 5471 | |
---|
| 5472 | function depth(node) { |
---|
| 5473 | var children = node.children, |
---|
| 5474 | d = 0; |
---|
| 5475 | if (children && (n = children.length)) { |
---|
| 5476 | var i = -1, |
---|
| 5477 | n; |
---|
| 5478 | while (++i < n) d = Math.max(d, depth(children[i])); |
---|
| 5479 | } |
---|
| 5480 | return 1 + d; |
---|
| 5481 | } |
---|
| 5482 | |
---|
| 5483 | function partition(d, i) { |
---|
| 5484 | var nodes = hierarchy.call(this, d, i); |
---|
| 5485 | position(nodes[0], 0, size[0], size[1] / depth(nodes[0])); |
---|
| 5486 | return nodes; |
---|
| 5487 | } |
---|
| 5488 | |
---|
| 5489 | partition.size = function(x) { |
---|
| 5490 | if (!arguments.length) return size; |
---|
| 5491 | size = x; |
---|
| 5492 | return partition; |
---|
| 5493 | }; |
---|
| 5494 | |
---|
| 5495 | return d3_layout_hierarchyRebind(partition, hierarchy); |
---|
| 5496 | }; |
---|
| 5497 | d3.layout.pie = function() { |
---|
| 5498 | var value = Number, |
---|
| 5499 | sort = d3_layout_pieSortByValue, |
---|
| 5500 | startAngle = 0, |
---|
| 5501 | endAngle = 2 * Math.PI; |
---|
| 5502 | |
---|
| 5503 | function pie(data, i) { |
---|
| 5504 | |
---|
| 5505 | // Compute the numeric values for each data element. |
---|
| 5506 | var values = data.map(function(d, i) { return +value.call(pie, d, i); }); |
---|
| 5507 | |
---|
| 5508 | // Compute the start angle. |
---|
| 5509 | var a = +(typeof startAngle === "function" |
---|
| 5510 | ? startAngle.apply(this, arguments) |
---|
| 5511 | : startAngle); |
---|
| 5512 | |
---|
| 5513 | // Compute the angular scale factor: from value to radians. |
---|
| 5514 | var k = ((typeof endAngle === "function" |
---|
| 5515 | ? endAngle.apply(this, arguments) |
---|
| 5516 | : endAngle) - startAngle) |
---|
| 5517 | / d3.sum(values); |
---|
| 5518 | |
---|
| 5519 | // Optionally sort the data. |
---|
| 5520 | var index = d3.range(data.length); |
---|
| 5521 | if (sort != null) index.sort(sort === d3_layout_pieSortByValue |
---|
| 5522 | ? function(i, j) { return values[j] - values[i]; } |
---|
| 5523 | : function(i, j) { return sort(data[i], data[j]); }); |
---|
| 5524 | |
---|
| 5525 | // Compute the arcs! |
---|
| 5526 | // They are stored in the original data's order. |
---|
| 5527 | var arcs = []; |
---|
| 5528 | index.forEach(function(i) { |
---|
| 5529 | arcs[i] = { |
---|
| 5530 | data: data[i], |
---|
| 5531 | value: d = values[i], |
---|
| 5532 | startAngle: a, |
---|
| 5533 | endAngle: a += d * k |
---|
| 5534 | }; |
---|
| 5535 | }); |
---|
| 5536 | return arcs; |
---|
| 5537 | } |
---|
| 5538 | |
---|
| 5539 | /** |
---|
| 5540 | * Specifies the value function *x*, which returns a nonnegative numeric value |
---|
| 5541 | * for each datum. The default value function is `Number`. The value function |
---|
| 5542 | * is passed two arguments: the current datum and the current index. |
---|
| 5543 | */ |
---|
| 5544 | pie.value = function(x) { |
---|
| 5545 | if (!arguments.length) return value; |
---|
| 5546 | value = x; |
---|
| 5547 | return pie; |
---|
| 5548 | }; |
---|
| 5549 | |
---|
| 5550 | /** |
---|
| 5551 | * Specifies a sort comparison operator *x*. The comparator is passed two data |
---|
| 5552 | * elements from the data array, a and b; it returns a negative value if a is |
---|
| 5553 | * less than b, a positive value if a is greater than b, and zero if a equals |
---|
| 5554 | * b. |
---|
| 5555 | */ |
---|
| 5556 | pie.sort = function(x) { |
---|
| 5557 | if (!arguments.length) return sort; |
---|
| 5558 | sort = x; |
---|
| 5559 | return pie; |
---|
| 5560 | }; |
---|
| 5561 | |
---|
| 5562 | /** |
---|
| 5563 | * Specifies the overall start angle of the pie chart. Defaults to 0. The |
---|
| 5564 | * start angle can be specified either as a constant or as a function; in the |
---|
| 5565 | * case of a function, it is evaluated once per array (as opposed to per |
---|
| 5566 | * element). |
---|
| 5567 | */ |
---|
| 5568 | pie.startAngle = function(x) { |
---|
| 5569 | if (!arguments.length) return startAngle; |
---|
| 5570 | startAngle = x; |
---|
| 5571 | return pie; |
---|
| 5572 | }; |
---|
| 5573 | |
---|
| 5574 | /** |
---|
| 5575 | * Specifies the overall end angle of the pie chart. Defaults to 2Ï. The |
---|
| 5576 | * end angle can be specified either as a constant or as a function; in the |
---|
| 5577 | * case of a function, it is evaluated once per array (as opposed to per |
---|
| 5578 | * element). |
---|
| 5579 | */ |
---|
| 5580 | pie.endAngle = function(x) { |
---|
| 5581 | if (!arguments.length) return endAngle; |
---|
| 5582 | endAngle = x; |
---|
| 5583 | return pie; |
---|
| 5584 | }; |
---|
| 5585 | |
---|
| 5586 | return pie; |
---|
| 5587 | }; |
---|
| 5588 | |
---|
| 5589 | var d3_layout_pieSortByValue = {}; |
---|
| 5590 | // data is two-dimensional array of x,y; we populate y0 |
---|
| 5591 | d3.layout.stack = function() { |
---|
| 5592 | var values = Object, |
---|
| 5593 | order = d3_layout_stackOrderDefault, |
---|
| 5594 | offset = d3_layout_stackOffsetZero, |
---|
| 5595 | out = d3_layout_stackOut, |
---|
| 5596 | x = d3_layout_stackX, |
---|
| 5597 | y = d3_layout_stackY; |
---|
| 5598 | |
---|
| 5599 | function stack(data, index) { |
---|
| 5600 | |
---|
| 5601 | // Convert series to canonical two-dimensional representation. |
---|
| 5602 | var series = data.map(function(d, i) { |
---|
| 5603 | return values.call(stack, d, i); |
---|
| 5604 | }); |
---|
| 5605 | |
---|
| 5606 | // Convert each series to canonical [[x,y]] representation. |
---|
| 5607 | var points = series.map(function(d, i) { |
---|
| 5608 | return d.map(function(v, i) { |
---|
| 5609 | return [x.call(stack, v, i), y.call(stack, v, i)]; |
---|
| 5610 | }); |
---|
| 5611 | }); |
---|
| 5612 | |
---|
| 5613 | // Compute the order of series, and permute them. |
---|
| 5614 | var orders = order.call(stack, points, index); |
---|
| 5615 | series = d3.permute(series, orders); |
---|
| 5616 | points = d3.permute(points, orders); |
---|
| 5617 | |
---|
| 5618 | // Compute the baseline⊠|
---|
| 5619 | var offsets = offset.call(stack, points, index); |
---|
| 5620 | |
---|
| 5621 | // And propagate it to other series. |
---|
| 5622 | var n = series.length, |
---|
| 5623 | m = series[0].length, |
---|
| 5624 | i, |
---|
| 5625 | j, |
---|
| 5626 | o; |
---|
| 5627 | for (j = 0; j < m; ++j) { |
---|
| 5628 | out.call(stack, series[0][j], o = offsets[j], points[0][j][1]); |
---|
| 5629 | for (i = 1; i < n; ++i) { |
---|
| 5630 | out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]); |
---|
| 5631 | } |
---|
| 5632 | } |
---|
| 5633 | |
---|
| 5634 | return data; |
---|
| 5635 | } |
---|
| 5636 | |
---|
| 5637 | stack.values = function(x) { |
---|
| 5638 | if (!arguments.length) return values; |
---|
| 5639 | values = x; |
---|
| 5640 | return stack; |
---|
| 5641 | }; |
---|
| 5642 | |
---|
| 5643 | stack.order = function(x) { |
---|
| 5644 | if (!arguments.length) return order; |
---|
| 5645 | order = typeof x === "function" ? x : d3_layout_stackOrders.get(x) || d3_layout_stackOrderDefault; |
---|
| 5646 | return stack; |
---|
| 5647 | }; |
---|
| 5648 | |
---|
| 5649 | stack.offset = function(x) { |
---|
| 5650 | if (!arguments.length) return offset; |
---|
| 5651 | offset = typeof x === "function" ? x : d3_layout_stackOffsets.get(x) || d3_layout_stackOffsetZero; |
---|
| 5652 | return stack; |
---|
| 5653 | }; |
---|
| 5654 | |
---|
| 5655 | stack.x = function(z) { |
---|
| 5656 | if (!arguments.length) return x; |
---|
| 5657 | x = z; |
---|
| 5658 | return stack; |
---|
| 5659 | }; |
---|
| 5660 | |
---|
| 5661 | stack.y = function(z) { |
---|
| 5662 | if (!arguments.length) return y; |
---|
| 5663 | y = z; |
---|
| 5664 | return stack; |
---|
| 5665 | }; |
---|
| 5666 | |
---|
| 5667 | stack.out = function(z) { |
---|
| 5668 | if (!arguments.length) return out; |
---|
| 5669 | out = z; |
---|
| 5670 | return stack; |
---|
| 5671 | }; |
---|
| 5672 | |
---|
| 5673 | return stack; |
---|
| 5674 | } |
---|
| 5675 | |
---|
| 5676 | function d3_layout_stackX(d) { |
---|
| 5677 | return d.x; |
---|
| 5678 | } |
---|
| 5679 | |
---|
| 5680 | function d3_layout_stackY(d) { |
---|
| 5681 | return d.y; |
---|
| 5682 | } |
---|
| 5683 | |
---|
| 5684 | function d3_layout_stackOut(d, y0, y) { |
---|
| 5685 | d.y0 = y0; |
---|
| 5686 | d.y = y; |
---|
| 5687 | } |
---|
| 5688 | |
---|
| 5689 | var d3_layout_stackOrders = d3.map({ |
---|
| 5690 | |
---|
| 5691 | "inside-out": function(data) { |
---|
| 5692 | var n = data.length, |
---|
| 5693 | i, |
---|
| 5694 | j, |
---|
| 5695 | max = data.map(d3_layout_stackMaxIndex), |
---|
| 5696 | sums = data.map(d3_layout_stackReduceSum), |
---|
| 5697 | index = d3.range(n).sort(function(a, b) { return max[a] - max[b]; }), |
---|
| 5698 | top = 0, |
---|
| 5699 | bottom = 0, |
---|
| 5700 | tops = [], |
---|
| 5701 | bottoms = []; |
---|
| 5702 | for (i = 0; i < n; ++i) { |
---|
| 5703 | j = index[i]; |
---|
| 5704 | if (top < bottom) { |
---|
| 5705 | top += sums[j]; |
---|
| 5706 | tops.push(j); |
---|
| 5707 | } else { |
---|
| 5708 | bottom += sums[j]; |
---|
| 5709 | bottoms.push(j); |
---|
| 5710 | } |
---|
| 5711 | } |
---|
| 5712 | return bottoms.reverse().concat(tops); |
---|
| 5713 | }, |
---|
| 5714 | |
---|
| 5715 | "reverse": function(data) { |
---|
| 5716 | return d3.range(data.length).reverse(); |
---|
| 5717 | }, |
---|
| 5718 | |
---|
| 5719 | "default": d3_layout_stackOrderDefault |
---|
| 5720 | |
---|
| 5721 | }); |
---|
| 5722 | |
---|
| 5723 | var d3_layout_stackOffsets = d3.map({ |
---|
| 5724 | |
---|
| 5725 | "silhouette": function(data) { |
---|
| 5726 | var n = data.length, |
---|
| 5727 | m = data[0].length, |
---|
| 5728 | sums = [], |
---|
| 5729 | max = 0, |
---|
| 5730 | i, |
---|
| 5731 | j, |
---|
| 5732 | o, |
---|
| 5733 | y0 = []; |
---|
| 5734 | for (j = 0; j < m; ++j) { |
---|
| 5735 | for (i = 0, o = 0; i < n; i++) o += data[i][j][1]; |
---|
| 5736 | if (o > max) max = o; |
---|
| 5737 | sums.push(o); |
---|
| 5738 | } |
---|
| 5739 | for (j = 0; j < m; ++j) { |
---|
| 5740 | y0[j] = (max - sums[j]) / 2; |
---|
| 5741 | } |
---|
| 5742 | return y0; |
---|
| 5743 | }, |
---|
| 5744 | |
---|
| 5745 | "wiggle": function(data) { |
---|
| 5746 | var n = data.length, |
---|
| 5747 | x = data[0], |
---|
| 5748 | m = x.length, |
---|
| 5749 | max = 0, |
---|
| 5750 | i, |
---|
| 5751 | j, |
---|
| 5752 | k, |
---|
| 5753 | s1, |
---|
| 5754 | s2, |
---|
| 5755 | s3, |
---|
| 5756 | dx, |
---|
| 5757 | o, |
---|
| 5758 | o0, |
---|
| 5759 | y0 = []; |
---|
| 5760 | y0[0] = o = o0 = 0; |
---|
| 5761 | for (j = 1; j < m; ++j) { |
---|
| 5762 | for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1]; |
---|
| 5763 | for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) { |
---|
| 5764 | for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) { |
---|
| 5765 | s3 += (data[k][j][1] - data[k][j - 1][1]) / dx; |
---|
| 5766 | } |
---|
| 5767 | s2 += s3 * data[i][j][1]; |
---|
| 5768 | } |
---|
| 5769 | y0[j] = o -= s1 ? s2 / s1 * dx : 0; |
---|
| 5770 | if (o < o0) o0 = o; |
---|
| 5771 | } |
---|
| 5772 | for (j = 0; j < m; ++j) y0[j] -= o0; |
---|
| 5773 | return y0; |
---|
| 5774 | }, |
---|
| 5775 | |
---|
| 5776 | "expand": function(data) { |
---|
| 5777 | var n = data.length, |
---|
| 5778 | m = data[0].length, |
---|
| 5779 | k = 1 / n, |
---|
| 5780 | i, |
---|
| 5781 | j, |
---|
| 5782 | o, |
---|
| 5783 | y0 = []; |
---|
| 5784 | for (j = 0; j < m; ++j) { |
---|
| 5785 | for (i = 0, o = 0; i < n; i++) o += data[i][j][1]; |
---|
| 5786 | if (o) for (i = 0; i < n; i++) data[i][j][1] /= o; |
---|
| 5787 | else for (i = 0; i < n; i++) data[i][j][1] = k; |
---|
| 5788 | } |
---|
| 5789 | for (j = 0; j < m; ++j) y0[j] = 0; |
---|
| 5790 | return y0; |
---|
| 5791 | }, |
---|
| 5792 | |
---|
| 5793 | "zero": d3_layout_stackOffsetZero |
---|
| 5794 | |
---|
| 5795 | }); |
---|
| 5796 | |
---|
| 5797 | function d3_layout_stackOrderDefault(data) { |
---|
| 5798 | return d3.range(data.length); |
---|
| 5799 | } |
---|
| 5800 | |
---|
| 5801 | function d3_layout_stackOffsetZero(data) { |
---|
| 5802 | var j = -1, |
---|
| 5803 | m = data[0].length, |
---|
| 5804 | y0 = []; |
---|
| 5805 | while (++j < m) y0[j] = 0; |
---|
| 5806 | return y0; |
---|
| 5807 | } |
---|
| 5808 | |
---|
| 5809 | function d3_layout_stackMaxIndex(array) { |
---|
| 5810 | var i = 1, |
---|
| 5811 | j = 0, |
---|
| 5812 | v = array[0][1], |
---|
| 5813 | k, |
---|
| 5814 | n = array.length; |
---|
| 5815 | for (; i < n; ++i) { |
---|
| 5816 | if ((k = array[i][1]) > v) { |
---|
| 5817 | j = i; |
---|
| 5818 | v = k; |
---|
| 5819 | } |
---|
| 5820 | } |
---|
| 5821 | return j; |
---|
| 5822 | } |
---|
| 5823 | |
---|
| 5824 | function d3_layout_stackReduceSum(d) { |
---|
| 5825 | return d.reduce(d3_layout_stackSum, 0); |
---|
| 5826 | } |
---|
| 5827 | |
---|
| 5828 | function d3_layout_stackSum(p, d) { |
---|
| 5829 | return p + d[1]; |
---|
| 5830 | } |
---|
| 5831 | d3.layout.histogram = function() { |
---|
| 5832 | var frequency = true, |
---|
| 5833 | valuer = Number, |
---|
| 5834 | ranger = d3_layout_histogramRange, |
---|
| 5835 | binner = d3_layout_histogramBinSturges; |
---|
| 5836 | |
---|
| 5837 | function histogram(data, i) { |
---|
| 5838 | var bins = [], |
---|
| 5839 | values = data.map(valuer, this), |
---|
| 5840 | range = ranger.call(this, values, i), |
---|
| 5841 | thresholds = binner.call(this, range, values, i), |
---|
| 5842 | bin, |
---|
| 5843 | i = -1, |
---|
| 5844 | n = values.length, |
---|
| 5845 | m = thresholds.length - 1, |
---|
| 5846 | k = frequency ? 1 : 1 / n, |
---|
| 5847 | x; |
---|
| 5848 | |
---|
| 5849 | // Initialize the bins. |
---|
| 5850 | while (++i < m) { |
---|
| 5851 | bin = bins[i] = []; |
---|
| 5852 | bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]); |
---|
| 5853 | bin.y = 0; |
---|
| 5854 | } |
---|
| 5855 | |
---|
| 5856 | // Fill the bins, ignoring values outside the range. |
---|
| 5857 | i = -1; while(++i < n) { |
---|
| 5858 | x = values[i]; |
---|
| 5859 | if ((x >= range[0]) && (x <= range[1])) { |
---|
| 5860 | bin = bins[d3.bisect(thresholds, x, 1, m) - 1]; |
---|
| 5861 | bin.y += k; |
---|
| 5862 | bin.push(data[i]); |
---|
| 5863 | } |
---|
| 5864 | } |
---|
| 5865 | |
---|
| 5866 | return bins; |
---|
| 5867 | } |
---|
| 5868 | |
---|
| 5869 | // Specifies how to extract a value from the associated data. The default |
---|
| 5870 | // value function is `Number`, which is equivalent to the identity function. |
---|
| 5871 | histogram.value = function(x) { |
---|
| 5872 | if (!arguments.length) return valuer; |
---|
| 5873 | valuer = x; |
---|
| 5874 | return histogram; |
---|
| 5875 | }; |
---|
| 5876 | |
---|
| 5877 | // Specifies the range of the histogram. Values outside the specified range |
---|
| 5878 | // will be ignored. The argument `x` may be specified either as a two-element |
---|
| 5879 | // array representing the minimum and maximum value of the range, or as a |
---|
| 5880 | // function that returns the range given the array of values and the current |
---|
| 5881 | // index `i`. The default range is the extent (minimum and maximum) of the |
---|
| 5882 | // values. |
---|
| 5883 | histogram.range = function(x) { |
---|
| 5884 | if (!arguments.length) return ranger; |
---|
| 5885 | ranger = d3.functor(x); |
---|
| 5886 | return histogram; |
---|
| 5887 | }; |
---|
| 5888 | |
---|
| 5889 | // Specifies how to bin values in the histogram. The argument `x` may be |
---|
| 5890 | // specified as a number, in which case the range of values will be split |
---|
| 5891 | // uniformly into the given number of bins. Or, `x` may be an array of |
---|
| 5892 | // threshold values, defining the bins; the specified array must contain the |
---|
| 5893 | // rightmost (upper) value, thus specifying n + 1 values for n bins. Or, `x` |
---|
| 5894 | // may be a function which is evaluated, being passed the range, the array of |
---|
| 5895 | // values, and the current index `i`, returning an array of thresholds. The |
---|
| 5896 | // default bin function will divide the values into uniform bins using |
---|
| 5897 | // Sturges' formula. |
---|
| 5898 | histogram.bins = function(x) { |
---|
| 5899 | if (!arguments.length) return binner; |
---|
| 5900 | binner = typeof x === "number" |
---|
| 5901 | ? function(range) { return d3_layout_histogramBinFixed(range, x); } |
---|
| 5902 | : d3.functor(x); |
---|
| 5903 | return histogram; |
---|
| 5904 | }; |
---|
| 5905 | |
---|
| 5906 | // Specifies whether the histogram's `y` value is a count (frequency) or a |
---|
| 5907 | // probability (density). The default value is true. |
---|
| 5908 | histogram.frequency = function(x) { |
---|
| 5909 | if (!arguments.length) return frequency; |
---|
| 5910 | frequency = !!x; |
---|
| 5911 | return histogram; |
---|
| 5912 | }; |
---|
| 5913 | |
---|
| 5914 | return histogram; |
---|
| 5915 | }; |
---|
| 5916 | |
---|
| 5917 | function d3_layout_histogramBinSturges(range, values) { |
---|
| 5918 | return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1)); |
---|
| 5919 | } |
---|
| 5920 | |
---|
| 5921 | function d3_layout_histogramBinFixed(range, n) { |
---|
| 5922 | var x = -1, |
---|
| 5923 | b = +range[0], |
---|
| 5924 | m = (range[1] - b) / n, |
---|
| 5925 | f = []; |
---|
| 5926 | while (++x <= n) f[x] = m * x + b; |
---|
| 5927 | return f; |
---|
| 5928 | } |
---|
| 5929 | |
---|
| 5930 | function d3_layout_histogramRange(values) { |
---|
| 5931 | return [d3.min(values), d3.max(values)]; |
---|
| 5932 | } |
---|
| 5933 | d3.layout.hierarchy = function() { |
---|
| 5934 | var sort = d3_layout_hierarchySort, |
---|
| 5935 | children = d3_layout_hierarchyChildren, |
---|
| 5936 | value = d3_layout_hierarchyValue; |
---|
| 5937 | |
---|
| 5938 | // Recursively compute the node depth and value. |
---|
| 5939 | // Also converts the data representation into a standard hierarchy structure. |
---|
| 5940 | function recurse(data, depth, nodes) { |
---|
| 5941 | var childs = children.call(hierarchy, data, depth), |
---|
| 5942 | node = d3_layout_hierarchyInline ? data : {data: data}; |
---|
| 5943 | node.depth = depth; |
---|
| 5944 | nodes.push(node); |
---|
| 5945 | if (childs && (n = childs.length)) { |
---|
| 5946 | var i = -1, |
---|
| 5947 | n, |
---|
| 5948 | c = node.children = [], |
---|
| 5949 | v = 0, |
---|
| 5950 | j = depth + 1; |
---|
| 5951 | while (++i < n) { |
---|
| 5952 | d = recurse(childs[i], j, nodes); |
---|
| 5953 | d.parent = node; |
---|
| 5954 | c.push(d); |
---|
| 5955 | v += d.value; |
---|
| 5956 | } |
---|
| 5957 | if (sort) c.sort(sort); |
---|
| 5958 | if (value) node.value = v; |
---|
| 5959 | } else if (value) { |
---|
| 5960 | node.value = +value.call(hierarchy, data, depth) || 0; |
---|
| 5961 | } |
---|
| 5962 | return node; |
---|
| 5963 | } |
---|
| 5964 | |
---|
| 5965 | // Recursively re-evaluates the node value. |
---|
| 5966 | function revalue(node, depth) { |
---|
| 5967 | var children = node.children, |
---|
| 5968 | v = 0; |
---|
| 5969 | if (children && (n = children.length)) { |
---|
| 5970 | var i = -1, |
---|
| 5971 | n, |
---|
| 5972 | j = depth + 1; |
---|
| 5973 | while (++i < n) v += revalue(children[i], j); |
---|
| 5974 | } else if (value) { |
---|
| 5975 | v = +value.call(hierarchy, d3_layout_hierarchyInline ? node : node.data, depth) || 0; |
---|
| 5976 | } |
---|
| 5977 | if (value) node.value = v; |
---|
| 5978 | return v; |
---|
| 5979 | } |
---|
| 5980 | |
---|
| 5981 | function hierarchy(d) { |
---|
| 5982 | var nodes = []; |
---|
| 5983 | recurse(d, 0, nodes); |
---|
| 5984 | return nodes; |
---|
| 5985 | } |
---|
| 5986 | |
---|
| 5987 | hierarchy.sort = function(x) { |
---|
| 5988 | if (!arguments.length) return sort; |
---|
| 5989 | sort = x; |
---|
| 5990 | return hierarchy; |
---|
| 5991 | }; |
---|
| 5992 | |
---|
| 5993 | hierarchy.children = function(x) { |
---|
| 5994 | if (!arguments.length) return children; |
---|
| 5995 | children = x; |
---|
| 5996 | return hierarchy; |
---|
| 5997 | }; |
---|
| 5998 | |
---|
| 5999 | hierarchy.value = function(x) { |
---|
| 6000 | if (!arguments.length) return value; |
---|
| 6001 | value = x; |
---|
| 6002 | return hierarchy; |
---|
| 6003 | }; |
---|
| 6004 | |
---|
| 6005 | // Re-evaluates the `value` property for the specified hierarchy. |
---|
| 6006 | hierarchy.revalue = function(root) { |
---|
| 6007 | revalue(root, 0); |
---|
| 6008 | return root; |
---|
| 6009 | }; |
---|
| 6010 | |
---|
| 6011 | return hierarchy; |
---|
| 6012 | }; |
---|
| 6013 | |
---|
| 6014 | // A method assignment helper for hierarchy subclasses. |
---|
| 6015 | function d3_layout_hierarchyRebind(object, hierarchy) { |
---|
| 6016 | d3.rebind(object, hierarchy, "sort", "children", "value"); |
---|
| 6017 | |
---|
| 6018 | // Add an alias for links, for convenience. |
---|
| 6019 | object.links = d3_layout_hierarchyLinks; |
---|
| 6020 | |
---|
| 6021 | // If the new API is used, enabling inlining. |
---|
| 6022 | object.nodes = function(d) { |
---|
| 6023 | d3_layout_hierarchyInline = true; |
---|
| 6024 | return (object.nodes = object)(d); |
---|
| 6025 | }; |
---|
| 6026 | |
---|
| 6027 | return object; |
---|
| 6028 | } |
---|
| 6029 | |
---|
| 6030 | function d3_layout_hierarchyChildren(d) { |
---|
| 6031 | return d.children; |
---|
| 6032 | } |
---|
| 6033 | |
---|
| 6034 | function d3_layout_hierarchyValue(d) { |
---|
| 6035 | return d.value; |
---|
| 6036 | } |
---|
| 6037 | |
---|
| 6038 | function d3_layout_hierarchySort(a, b) { |
---|
| 6039 | return b.value - a.value; |
---|
| 6040 | } |
---|
| 6041 | |
---|
| 6042 | // Returns an array source+target objects for the specified nodes. |
---|
| 6043 | function d3_layout_hierarchyLinks(nodes) { |
---|
| 6044 | return d3.merge(nodes.map(function(parent) { |
---|
| 6045 | return (parent.children || []).map(function(child) { |
---|
| 6046 | return {source: parent, target: child}; |
---|
| 6047 | }); |
---|
| 6048 | })); |
---|
| 6049 | } |
---|
| 6050 | |
---|
| 6051 | // For backwards-compatibility, don't enable inlining by default. |
---|
| 6052 | var d3_layout_hierarchyInline = false; |
---|
| 6053 | d3.layout.pack = function() { |
---|
| 6054 | var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), |
---|
| 6055 | size = [1, 1]; |
---|
| 6056 | |
---|
| 6057 | function pack(d, i) { |
---|
| 6058 | var nodes = hierarchy.call(this, d, i), |
---|
| 6059 | root = nodes[0]; |
---|
| 6060 | |
---|
| 6061 | // Recursively compute the layout. |
---|
| 6062 | root.x = 0; |
---|
| 6063 | root.y = 0; |
---|
| 6064 | d3_layout_packTree(root); |
---|
| 6065 | |
---|
| 6066 | // Scale the layout to fit the requested size. |
---|
| 6067 | var w = size[0], |
---|
| 6068 | h = size[1], |
---|
| 6069 | k = 1 / Math.max(2 * root.r / w, 2 * root.r / h); |
---|
| 6070 | d3_layout_packTransform(root, w / 2, h / 2, k); |
---|
| 6071 | |
---|
| 6072 | return nodes; |
---|
| 6073 | } |
---|
| 6074 | |
---|
| 6075 | pack.size = function(x) { |
---|
| 6076 | if (!arguments.length) return size; |
---|
| 6077 | size = x; |
---|
| 6078 | return pack; |
---|
| 6079 | }; |
---|
| 6080 | |
---|
| 6081 | return d3_layout_hierarchyRebind(pack, hierarchy); |
---|
| 6082 | }; |
---|
| 6083 | |
---|
| 6084 | function d3_layout_packSort(a, b) { |
---|
| 6085 | return a.value - b.value; |
---|
| 6086 | } |
---|
| 6087 | |
---|
| 6088 | function d3_layout_packInsert(a, b) { |
---|
| 6089 | var c = a._pack_next; |
---|
| 6090 | a._pack_next = b; |
---|
| 6091 | b._pack_prev = a; |
---|
| 6092 | b._pack_next = c; |
---|
| 6093 | c._pack_prev = b; |
---|
| 6094 | } |
---|
| 6095 | |
---|
| 6096 | function d3_layout_packSplice(a, b) { |
---|
| 6097 | a._pack_next = b; |
---|
| 6098 | b._pack_prev = a; |
---|
| 6099 | } |
---|
| 6100 | |
---|
| 6101 | function d3_layout_packIntersects(a, b) { |
---|
| 6102 | var dx = b.x - a.x, |
---|
| 6103 | dy = b.y - a.y, |
---|
| 6104 | dr = a.r + b.r; |
---|
| 6105 | return dr * dr - dx * dx - dy * dy > .001; // within epsilon |
---|
| 6106 | } |
---|
| 6107 | |
---|
| 6108 | function d3_layout_packCircle(nodes) { |
---|
| 6109 | var xMin = Infinity, |
---|
| 6110 | xMax = -Infinity, |
---|
| 6111 | yMin = Infinity, |
---|
| 6112 | yMax = -Infinity, |
---|
| 6113 | n = nodes.length, |
---|
| 6114 | a, b, c, j, k; |
---|
| 6115 | |
---|
| 6116 | function bound(node) { |
---|
| 6117 | xMin = Math.min(node.x - node.r, xMin); |
---|
| 6118 | xMax = Math.max(node.x + node.r, xMax); |
---|
| 6119 | yMin = Math.min(node.y - node.r, yMin); |
---|
| 6120 | yMax = Math.max(node.y + node.r, yMax); |
---|
| 6121 | } |
---|
| 6122 | |
---|
| 6123 | // Create node links. |
---|
| 6124 | nodes.forEach(d3_layout_packLink); |
---|
| 6125 | |
---|
| 6126 | // Create first node. |
---|
| 6127 | a = nodes[0]; |
---|
| 6128 | a.x = -a.r; |
---|
| 6129 | a.y = 0; |
---|
| 6130 | bound(a); |
---|
| 6131 | |
---|
| 6132 | // Create second node. |
---|
| 6133 | if (n > 1) { |
---|
| 6134 | b = nodes[1]; |
---|
| 6135 | b.x = b.r; |
---|
| 6136 | b.y = 0; |
---|
| 6137 | bound(b); |
---|
| 6138 | |
---|
| 6139 | // Create third node and build chain. |
---|
| 6140 | if (n > 2) { |
---|
| 6141 | c = nodes[2]; |
---|
| 6142 | d3_layout_packPlace(a, b, c); |
---|
| 6143 | bound(c); |
---|
| 6144 | d3_layout_packInsert(a, c); |
---|
| 6145 | a._pack_prev = c; |
---|
| 6146 | d3_layout_packInsert(c, b); |
---|
| 6147 | b = a._pack_next; |
---|
| 6148 | |
---|
| 6149 | // Now iterate through the rest. |
---|
| 6150 | for (var i = 3; i < n; i++) { |
---|
| 6151 | d3_layout_packPlace(a, b, c = nodes[i]); |
---|
| 6152 | |
---|
| 6153 | // Search for the closest intersection. |
---|
| 6154 | var isect = 0, s1 = 1, s2 = 1; |
---|
| 6155 | for (j = b._pack_next; j !== b; j = j._pack_next, s1++) { |
---|
| 6156 | if (d3_layout_packIntersects(j, c)) { |
---|
| 6157 | isect = 1; |
---|
| 6158 | break; |
---|
| 6159 | } |
---|
| 6160 | } |
---|
| 6161 | if (isect == 1) { |
---|
| 6162 | for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) { |
---|
| 6163 | if (d3_layout_packIntersects(k, c)) { |
---|
| 6164 | break; |
---|
| 6165 | } |
---|
| 6166 | } |
---|
| 6167 | } |
---|
| 6168 | |
---|
| 6169 | // Update node chain. |
---|
| 6170 | if (isect) { |
---|
| 6171 | if (s1 < s2 || (s1 == s2 && b.r < a.r)) d3_layout_packSplice(a, b = j); |
---|
| 6172 | else d3_layout_packSplice(a = k, b); |
---|
| 6173 | i--; |
---|
| 6174 | } else { |
---|
| 6175 | d3_layout_packInsert(a, c); |
---|
| 6176 | b = c; |
---|
| 6177 | bound(c); |
---|
| 6178 | } |
---|
| 6179 | } |
---|
| 6180 | } |
---|
| 6181 | } |
---|
| 6182 | |
---|
| 6183 | // Re-center the circles and return the encompassing radius. |
---|
| 6184 | var cx = (xMin + xMax) / 2, |
---|
| 6185 | cy = (yMin + yMax) / 2, |
---|
| 6186 | cr = 0; |
---|
| 6187 | for (var i = 0; i < n; i++) { |
---|
| 6188 | var node = nodes[i]; |
---|
| 6189 | node.x -= cx; |
---|
| 6190 | node.y -= cy; |
---|
| 6191 | cr = Math.max(cr, node.r + Math.sqrt(node.x * node.x + node.y * node.y)); |
---|
| 6192 | } |
---|
| 6193 | |
---|
| 6194 | // Remove node links. |
---|
| 6195 | nodes.forEach(d3_layout_packUnlink); |
---|
| 6196 | |
---|
| 6197 | return cr; |
---|
| 6198 | } |
---|
| 6199 | |
---|
| 6200 | function d3_layout_packLink(node) { |
---|
| 6201 | node._pack_next = node._pack_prev = node; |
---|
| 6202 | } |
---|
| 6203 | |
---|
| 6204 | function d3_layout_packUnlink(node) { |
---|
| 6205 | delete node._pack_next; |
---|
| 6206 | delete node._pack_prev; |
---|
| 6207 | } |
---|
| 6208 | |
---|
| 6209 | function d3_layout_packTree(node) { |
---|
| 6210 | var children = node.children; |
---|
| 6211 | if (children && children.length) { |
---|
| 6212 | children.forEach(d3_layout_packTree); |
---|
| 6213 | node.r = d3_layout_packCircle(children); |
---|
| 6214 | } else { |
---|
| 6215 | node.r = Math.sqrt(node.value); |
---|
| 6216 | } |
---|
| 6217 | } |
---|
| 6218 | |
---|
| 6219 | function d3_layout_packTransform(node, x, y, k) { |
---|
| 6220 | var children = node.children; |
---|
| 6221 | node.x = (x += k * node.x); |
---|
| 6222 | node.y = (y += k * node.y); |
---|
| 6223 | node.r *= k; |
---|
| 6224 | if (children) { |
---|
| 6225 | var i = -1, n = children.length; |
---|
| 6226 | while (++i < n) d3_layout_packTransform(children[i], x, y, k); |
---|
| 6227 | } |
---|
| 6228 | } |
---|
| 6229 | |
---|
| 6230 | function d3_layout_packPlace(a, b, c) { |
---|
| 6231 | var db = a.r + c.r, |
---|
| 6232 | dx = b.x - a.x, |
---|
| 6233 | dy = b.y - a.y; |
---|
| 6234 | if (db && (dx || dy)) { |
---|
| 6235 | var da = b.r + c.r, |
---|
| 6236 | dc = Math.sqrt(dx * dx + dy * dy), |
---|
| 6237 | cos = Math.max(-1, Math.min(1, (db * db + dc * dc - da * da) / (2 * db * dc))), |
---|
| 6238 | theta = Math.acos(cos), |
---|
| 6239 | x = cos * (db /= dc), |
---|
| 6240 | y = Math.sin(theta) * db; |
---|
| 6241 | c.x = a.x + x * dx + y * dy; |
---|
| 6242 | c.y = a.y + x * dy - y * dx; |
---|
| 6243 | } else { |
---|
| 6244 | c.x = a.x + db; |
---|
| 6245 | c.y = a.y; |
---|
| 6246 | } |
---|
| 6247 | } |
---|
| 6248 | // Implements a hierarchical layout using the cluster (or dendrogram) |
---|
| 6249 | // algorithm. |
---|
| 6250 | d3.layout.cluster = function() { |
---|
| 6251 | var hierarchy = d3.layout.hierarchy().sort(null).value(null), |
---|
| 6252 | separation = d3_layout_treeSeparation, |
---|
| 6253 | size = [1, 1]; // width, height |
---|
| 6254 | |
---|
| 6255 | function cluster(d, i) { |
---|
| 6256 | var nodes = hierarchy.call(this, d, i), |
---|
| 6257 | root = nodes[0], |
---|
| 6258 | previousNode, |
---|
| 6259 | x = 0, |
---|
| 6260 | kx, |
---|
| 6261 | ky; |
---|
| 6262 | |
---|
| 6263 | // First walk, computing the initial x & y values. |
---|
| 6264 | d3_layout_treeVisitAfter(root, function(node) { |
---|
| 6265 | var children = node.children; |
---|
| 6266 | if (children && children.length) { |
---|
| 6267 | node.x = d3_layout_clusterX(children); |
---|
| 6268 | node.y = d3_layout_clusterY(children); |
---|
| 6269 | } else { |
---|
| 6270 | node.x = previousNode ? x += separation(node, previousNode) : 0; |
---|
| 6271 | node.y = 0; |
---|
| 6272 | previousNode = node; |
---|
| 6273 | } |
---|
| 6274 | }); |
---|
| 6275 | |
---|
| 6276 | // Compute the left-most, right-most, and depth-most nodes for extents. |
---|
| 6277 | var left = d3_layout_clusterLeft(root), |
---|
| 6278 | right = d3_layout_clusterRight(root), |
---|
| 6279 | x0 = left.x - separation(left, right) / 2, |
---|
| 6280 | x1 = right.x + separation(right, left) / 2; |
---|
| 6281 | |
---|
| 6282 | // Second walk, normalizing x & y to the desired size. |
---|
| 6283 | d3_layout_treeVisitAfter(root, function(node) { |
---|
| 6284 | node.x = (node.x - x0) / (x1 - x0) * size[0]; |
---|
| 6285 | node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1]; |
---|
| 6286 | }); |
---|
| 6287 | |
---|
| 6288 | return nodes; |
---|
| 6289 | } |
---|
| 6290 | |
---|
| 6291 | cluster.separation = function(x) { |
---|
| 6292 | if (!arguments.length) return separation; |
---|
| 6293 | separation = x; |
---|
| 6294 | return cluster; |
---|
| 6295 | }; |
---|
| 6296 | |
---|
| 6297 | cluster.size = function(x) { |
---|
| 6298 | if (!arguments.length) return size; |
---|
| 6299 | size = x; |
---|
| 6300 | return cluster; |
---|
| 6301 | }; |
---|
| 6302 | |
---|
| 6303 | return d3_layout_hierarchyRebind(cluster, hierarchy); |
---|
| 6304 | }; |
---|
| 6305 | |
---|
| 6306 | function d3_layout_clusterY(children) { |
---|
| 6307 | return 1 + d3.max(children, function(child) { |
---|
| 6308 | return child.y; |
---|
| 6309 | }); |
---|
| 6310 | } |
---|
| 6311 | |
---|
| 6312 | function d3_layout_clusterX(children) { |
---|
| 6313 | return children.reduce(function(x, child) { |
---|
| 6314 | return x + child.x; |
---|
| 6315 | }, 0) / children.length; |
---|
| 6316 | } |
---|
| 6317 | |
---|
| 6318 | function d3_layout_clusterLeft(node) { |
---|
| 6319 | var children = node.children; |
---|
| 6320 | return children && children.length ? d3_layout_clusterLeft(children[0]) : node; |
---|
| 6321 | } |
---|
| 6322 | |
---|
| 6323 | function d3_layout_clusterRight(node) { |
---|
| 6324 | var children = node.children, n; |
---|
| 6325 | return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node; |
---|
| 6326 | } |
---|
| 6327 | // Node-link tree diagram using the Reingold-Tilford "tidy" algorithm |
---|
| 6328 | d3.layout.tree = function() { |
---|
| 6329 | var hierarchy = d3.layout.hierarchy().sort(null).value(null), |
---|
| 6330 | separation = d3_layout_treeSeparation, |
---|
| 6331 | size = [1, 1]; // width, height |
---|
| 6332 | |
---|
| 6333 | function tree(d, i) { |
---|
| 6334 | var nodes = hierarchy.call(this, d, i), |
---|
| 6335 | root = nodes[0]; |
---|
| 6336 | |
---|
| 6337 | function firstWalk(node, previousSibling) { |
---|
| 6338 | var children = node.children, |
---|
| 6339 | layout = node._tree; |
---|
| 6340 | if (children && (n = children.length)) { |
---|
| 6341 | var n, |
---|
| 6342 | firstChild = children[0], |
---|
| 6343 | previousChild, |
---|
| 6344 | ancestor = firstChild, |
---|
| 6345 | child, |
---|
| 6346 | i = -1; |
---|
| 6347 | while (++i < n) { |
---|
| 6348 | child = children[i]; |
---|
| 6349 | firstWalk(child, previousChild); |
---|
| 6350 | ancestor = apportion(child, previousChild, ancestor); |
---|
| 6351 | previousChild = child; |
---|
| 6352 | } |
---|
| 6353 | d3_layout_treeShift(node); |
---|
| 6354 | var midpoint = .5 * (firstChild._tree.prelim + child._tree.prelim); |
---|
| 6355 | if (previousSibling) { |
---|
| 6356 | layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling); |
---|
| 6357 | layout.mod = layout.prelim - midpoint; |
---|
| 6358 | } else { |
---|
| 6359 | layout.prelim = midpoint; |
---|
| 6360 | } |
---|
| 6361 | } else { |
---|
| 6362 | if (previousSibling) { |
---|
| 6363 | layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling); |
---|
| 6364 | } |
---|
| 6365 | } |
---|
| 6366 | } |
---|
| 6367 | |
---|
| 6368 | function secondWalk(node, x) { |
---|
| 6369 | node.x = node._tree.prelim + x; |
---|
| 6370 | var children = node.children; |
---|
| 6371 | if (children && (n = children.length)) { |
---|
| 6372 | var i = -1, |
---|
| 6373 | n; |
---|
| 6374 | x += node._tree.mod; |
---|
| 6375 | while (++i < n) { |
---|
| 6376 | secondWalk(children[i], x); |
---|
| 6377 | } |
---|
| 6378 | } |
---|
| 6379 | } |
---|
| 6380 | |
---|
| 6381 | function apportion(node, previousSibling, ancestor) { |
---|
| 6382 | if (previousSibling) { |
---|
| 6383 | var vip = node, |
---|
| 6384 | vop = node, |
---|
| 6385 | vim = previousSibling, |
---|
| 6386 | vom = node.parent.children[0], |
---|
| 6387 | sip = vip._tree.mod, |
---|
| 6388 | sop = vop._tree.mod, |
---|
| 6389 | sim = vim._tree.mod, |
---|
| 6390 | som = vom._tree.mod, |
---|
| 6391 | shift; |
---|
| 6392 | while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) { |
---|
| 6393 | vom = d3_layout_treeLeft(vom); |
---|
| 6394 | vop = d3_layout_treeRight(vop); |
---|
| 6395 | vop._tree.ancestor = node; |
---|
| 6396 | shift = vim._tree.prelim + sim - vip._tree.prelim - sip + separation(vim, vip); |
---|
| 6397 | if (shift > 0) { |
---|
| 6398 | d3_layout_treeMove(d3_layout_treeAncestor(vim, node, ancestor), node, shift); |
---|
| 6399 | sip += shift; |
---|
| 6400 | sop += shift; |
---|
| 6401 | } |
---|
| 6402 | sim += vim._tree.mod; |
---|
| 6403 | sip += vip._tree.mod; |
---|
| 6404 | som += vom._tree.mod; |
---|
| 6405 | sop += vop._tree.mod; |
---|
| 6406 | } |
---|
| 6407 | if (vim && !d3_layout_treeRight(vop)) { |
---|
| 6408 | vop._tree.thread = vim; |
---|
| 6409 | vop._tree.mod += sim - sop; |
---|
| 6410 | } |
---|
| 6411 | if (vip && !d3_layout_treeLeft(vom)) { |
---|
| 6412 | vom._tree.thread = vip; |
---|
| 6413 | vom._tree.mod += sip - som; |
---|
| 6414 | ancestor = node; |
---|
| 6415 | } |
---|
| 6416 | } |
---|
| 6417 | return ancestor; |
---|
| 6418 | } |
---|
| 6419 | |
---|
| 6420 | // Initialize temporary layout variables. |
---|
| 6421 | d3_layout_treeVisitAfter(root, function(node, previousSibling) { |
---|
| 6422 | node._tree = { |
---|
| 6423 | ancestor: node, |
---|
| 6424 | prelim: 0, |
---|
| 6425 | mod: 0, |
---|
| 6426 | change: 0, |
---|
| 6427 | shift: 0, |
---|
| 6428 | number: previousSibling ? previousSibling._tree.number + 1 : 0 |
---|
| 6429 | }; |
---|
| 6430 | }); |
---|
| 6431 | |
---|
| 6432 | // Compute the layout using Buchheim et al.'s algorithm. |
---|
| 6433 | firstWalk(root); |
---|
| 6434 | secondWalk(root, -root._tree.prelim); |
---|
| 6435 | |
---|
| 6436 | // Compute the left-most, right-most, and depth-most nodes for extents. |
---|
| 6437 | var left = d3_layout_treeSearch(root, d3_layout_treeLeftmost), |
---|
| 6438 | right = d3_layout_treeSearch(root, d3_layout_treeRightmost), |
---|
| 6439 | deep = d3_layout_treeSearch(root, d3_layout_treeDeepest), |
---|
| 6440 | x0 = left.x - separation(left, right) / 2, |
---|
| 6441 | x1 = right.x + separation(right, left) / 2, |
---|
| 6442 | y1 = deep.depth || 1; |
---|
| 6443 | |
---|
| 6444 | // Clear temporary layout variables; transform x and y. |
---|
| 6445 | d3_layout_treeVisitAfter(root, function(node) { |
---|
| 6446 | node.x = (node.x - x0) / (x1 - x0) * size[0]; |
---|
| 6447 | node.y = node.depth / y1 * size[1]; |
---|
| 6448 | delete node._tree; |
---|
| 6449 | }); |
---|
| 6450 | |
---|
| 6451 | return nodes; |
---|
| 6452 | } |
---|
| 6453 | |
---|
| 6454 | tree.separation = function(x) { |
---|
| 6455 | if (!arguments.length) return separation; |
---|
| 6456 | separation = x; |
---|
| 6457 | return tree; |
---|
| 6458 | }; |
---|
| 6459 | |
---|
| 6460 | tree.size = function(x) { |
---|
| 6461 | if (!arguments.length) return size; |
---|
| 6462 | size = x; |
---|
| 6463 | return tree; |
---|
| 6464 | }; |
---|
| 6465 | |
---|
| 6466 | return d3_layout_hierarchyRebind(tree, hierarchy); |
---|
| 6467 | }; |
---|
| 6468 | |
---|
| 6469 | function d3_layout_treeSeparation(a, b) { |
---|
| 6470 | return a.parent == b.parent ? 1 : 2; |
---|
| 6471 | } |
---|
| 6472 | |
---|
| 6473 | // function d3_layout_treeSeparationRadial(a, b) { |
---|
| 6474 | // return (a.parent == b.parent ? 1 : 2) / a.depth; |
---|
| 6475 | // } |
---|
| 6476 | |
---|
| 6477 | function d3_layout_treeLeft(node) { |
---|
| 6478 | var children = node.children; |
---|
| 6479 | return children && children.length ? children[0] : node._tree.thread; |
---|
| 6480 | } |
---|
| 6481 | |
---|
| 6482 | function d3_layout_treeRight(node) { |
---|
| 6483 | var children = node.children, |
---|
| 6484 | n; |
---|
| 6485 | return children && (n = children.length) ? children[n - 1] : node._tree.thread; |
---|
| 6486 | } |
---|
| 6487 | |
---|
| 6488 | function d3_layout_treeSearch(node, compare) { |
---|
| 6489 | var children = node.children; |
---|
| 6490 | if (children && (n = children.length)) { |
---|
| 6491 | var child, |
---|
| 6492 | n, |
---|
| 6493 | i = -1; |
---|
| 6494 | while (++i < n) { |
---|
| 6495 | if (compare(child = d3_layout_treeSearch(children[i], compare), node) > 0) { |
---|
| 6496 | node = child; |
---|
| 6497 | } |
---|
| 6498 | } |
---|
| 6499 | } |
---|
| 6500 | return node; |
---|
| 6501 | } |
---|
| 6502 | |
---|
| 6503 | function d3_layout_treeRightmost(a, b) { |
---|
| 6504 | return a.x - b.x; |
---|
| 6505 | } |
---|
| 6506 | |
---|
| 6507 | function d3_layout_treeLeftmost(a, b) { |
---|
| 6508 | return b.x - a.x; |
---|
| 6509 | } |
---|
| 6510 | |
---|
| 6511 | function d3_layout_treeDeepest(a, b) { |
---|
| 6512 | return a.depth - b.depth; |
---|
| 6513 | } |
---|
| 6514 | |
---|
| 6515 | function d3_layout_treeVisitAfter(node, callback) { |
---|
| 6516 | function visit(node, previousSibling) { |
---|
| 6517 | var children = node.children; |
---|
| 6518 | if (children && (n = children.length)) { |
---|
| 6519 | var child, |
---|
| 6520 | previousChild = null, |
---|
| 6521 | i = -1, |
---|
| 6522 | n; |
---|
| 6523 | while (++i < n) { |
---|
| 6524 | child = children[i]; |
---|
| 6525 | visit(child, previousChild); |
---|
| 6526 | previousChild = child; |
---|
| 6527 | } |
---|
| 6528 | } |
---|
| 6529 | callback(node, previousSibling); |
---|
| 6530 | } |
---|
| 6531 | visit(node, null); |
---|
| 6532 | } |
---|
| 6533 | |
---|
| 6534 | function d3_layout_treeShift(node) { |
---|
| 6535 | var shift = 0, |
---|
| 6536 | change = 0, |
---|
| 6537 | children = node.children, |
---|
| 6538 | i = children.length, |
---|
| 6539 | child; |
---|
| 6540 | while (--i >= 0) { |
---|
| 6541 | child = children[i]._tree; |
---|
| 6542 | child.prelim += shift; |
---|
| 6543 | child.mod += shift; |
---|
| 6544 | shift += child.shift + (change += child.change); |
---|
| 6545 | } |
---|
| 6546 | } |
---|
| 6547 | |
---|
| 6548 | function d3_layout_treeMove(ancestor, node, shift) { |
---|
| 6549 | ancestor = ancestor._tree; |
---|
| 6550 | node = node._tree; |
---|
| 6551 | var change = shift / (node.number - ancestor.number); |
---|
| 6552 | ancestor.change += change; |
---|
| 6553 | node.change -= change; |
---|
| 6554 | node.shift += shift; |
---|
| 6555 | node.prelim += shift; |
---|
| 6556 | node.mod += shift; |
---|
| 6557 | } |
---|
| 6558 | |
---|
| 6559 | function d3_layout_treeAncestor(vim, node, ancestor) { |
---|
| 6560 | return vim._tree.ancestor.parent == node.parent |
---|
| 6561 | ? vim._tree.ancestor |
---|
| 6562 | : ancestor; |
---|
| 6563 | } |
---|
| 6564 | // Squarified Treemaps by Mark Bruls, Kees Huizing, and Jarke J. van Wijk |
---|
| 6565 | // Modified to support a target aspect ratio by Jeff Heer |
---|
| 6566 | d3.layout.treemap = function() { |
---|
| 6567 | var hierarchy = d3.layout.hierarchy(), |
---|
| 6568 | round = Math.round, |
---|
| 6569 | size = [1, 1], // width, height |
---|
| 6570 | padding = null, |
---|
| 6571 | pad = d3_layout_treemapPadNull, |
---|
| 6572 | sticky = false, |
---|
| 6573 | stickies, |
---|
| 6574 | ratio = 0.5 * (1 + Math.sqrt(5)); // golden ratio |
---|
| 6575 | |
---|
| 6576 | // Compute the area for each child based on value & scale. |
---|
| 6577 | function scale(children, k) { |
---|
| 6578 | var i = -1, |
---|
| 6579 | n = children.length, |
---|
| 6580 | child, |
---|
| 6581 | area; |
---|
| 6582 | while (++i < n) { |
---|
| 6583 | area = (child = children[i]).value * (k < 0 ? 0 : k); |
---|
| 6584 | child.area = isNaN(area) || area <= 0 ? 0 : area; |
---|
| 6585 | } |
---|
| 6586 | } |
---|
| 6587 | |
---|
| 6588 | // Recursively arranges the specified node's children into squarified rows. |
---|
| 6589 | function squarify(node) { |
---|
| 6590 | var children = node.children; |
---|
| 6591 | if (children && children.length) { |
---|
| 6592 | var rect = pad(node), |
---|
| 6593 | row = [], |
---|
| 6594 | remaining = children.slice(), // copy-on-write |
---|
| 6595 | child, |
---|
| 6596 | best = Infinity, // the best row score so far |
---|
| 6597 | score, // the current row score |
---|
| 6598 | u = Math.min(rect.dx, rect.dy), // initial orientation |
---|
| 6599 | n; |
---|
| 6600 | scale(remaining, rect.dx * rect.dy / node.value); |
---|
| 6601 | row.area = 0; |
---|
| 6602 | while ((n = remaining.length) > 0) { |
---|
| 6603 | row.push(child = remaining[n - 1]); |
---|
| 6604 | row.area += child.area; |
---|
| 6605 | if ((score = worst(row, u)) <= best) { // continue with this orientation |
---|
| 6606 | remaining.pop(); |
---|
| 6607 | best = score; |
---|
| 6608 | } else { // abort, and try a different orientation |
---|
| 6609 | row.area -= row.pop().area; |
---|
| 6610 | position(row, u, rect, false); |
---|
| 6611 | u = Math.min(rect.dx, rect.dy); |
---|
| 6612 | row.length = row.area = 0; |
---|
| 6613 | best = Infinity; |
---|
| 6614 | } |
---|
| 6615 | } |
---|
| 6616 | if (row.length) { |
---|
| 6617 | position(row, u, rect, true); |
---|
| 6618 | row.length = row.area = 0; |
---|
| 6619 | } |
---|
| 6620 | children.forEach(squarify); |
---|
| 6621 | } |
---|
| 6622 | } |
---|
| 6623 | |
---|
| 6624 | // Recursively resizes the specified node's children into existing rows. |
---|
| 6625 | // Preserves the existing layout! |
---|
| 6626 | function stickify(node) { |
---|
| 6627 | var children = node.children; |
---|
| 6628 | if (children && children.length) { |
---|
| 6629 | var rect = pad(node), |
---|
| 6630 | remaining = children.slice(), // copy-on-write |
---|
| 6631 | child, |
---|
| 6632 | row = []; |
---|
| 6633 | scale(remaining, rect.dx * rect.dy / node.value); |
---|
| 6634 | row.area = 0; |
---|
| 6635 | while (child = remaining.pop()) { |
---|
| 6636 | row.push(child); |
---|
| 6637 | row.area += child.area; |
---|
| 6638 | if (child.z != null) { |
---|
| 6639 | position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length); |
---|
| 6640 | row.length = row.area = 0; |
---|
| 6641 | } |
---|
| 6642 | } |
---|
| 6643 | children.forEach(stickify); |
---|
| 6644 | } |
---|
| 6645 | } |
---|
| 6646 | |
---|
| 6647 | // Computes the score for the specified row, as the worst aspect ratio. |
---|
| 6648 | function worst(row, u) { |
---|
| 6649 | var s = row.area, |
---|
| 6650 | r, |
---|
| 6651 | rmax = 0, |
---|
| 6652 | rmin = Infinity, |
---|
| 6653 | i = -1, |
---|
| 6654 | n = row.length; |
---|
| 6655 | while (++i < n) { |
---|
| 6656 | if (!(r = row[i].area)) continue; |
---|
| 6657 | if (r < rmin) rmin = r; |
---|
| 6658 | if (r > rmax) rmax = r; |
---|
| 6659 | } |
---|
| 6660 | s *= s; |
---|
| 6661 | u *= u; |
---|
| 6662 | return s |
---|
| 6663 | ? Math.max((u * rmax * ratio) / s, s / (u * rmin * ratio)) |
---|
| 6664 | : Infinity; |
---|
| 6665 | } |
---|
| 6666 | |
---|
| 6667 | // Positions the specified row of nodes. Modifies `rect`. |
---|
| 6668 | function position(row, u, rect, flush) { |
---|
| 6669 | var i = -1, |
---|
| 6670 | n = row.length, |
---|
| 6671 | x = rect.x, |
---|
| 6672 | y = rect.y, |
---|
| 6673 | v = u ? round(row.area / u) : 0, |
---|
| 6674 | o; |
---|
| 6675 | if (u == rect.dx) { // horizontal subdivision |
---|
| 6676 | if (flush || v > rect.dy) v = rect.dy; // over+underflow |
---|
| 6677 | while (++i < n) { |
---|
| 6678 | o = row[i]; |
---|
| 6679 | o.x = x; |
---|
| 6680 | o.y = y; |
---|
| 6681 | o.dy = v; |
---|
| 6682 | x += o.dx = Math.min(rect.x + rect.dx - x, v ? round(o.area / v) : 0); |
---|
| 6683 | } |
---|
| 6684 | o.z = true; |
---|
| 6685 | o.dx += rect.x + rect.dx - x; // rounding error |
---|
| 6686 | rect.y += v; |
---|
| 6687 | rect.dy -= v; |
---|
| 6688 | } else { // vertical subdivision |
---|
| 6689 | if (flush || v > rect.dx) v = rect.dx; // over+underflow |
---|
| 6690 | while (++i < n) { |
---|
| 6691 | o = row[i]; |
---|
| 6692 | o.x = x; |
---|
| 6693 | o.y = y; |
---|
| 6694 | o.dx = v; |
---|
| 6695 | y += o.dy = Math.min(rect.y + rect.dy - y, v ? round(o.area / v) : 0); |
---|
| 6696 | } |
---|
| 6697 | o.z = false; |
---|
| 6698 | o.dy += rect.y + rect.dy - y; // rounding error |
---|
| 6699 | rect.x += v; |
---|
| 6700 | rect.dx -= v; |
---|
| 6701 | } |
---|
| 6702 | } |
---|
| 6703 | |
---|
| 6704 | function treemap(d) { |
---|
| 6705 | var nodes = stickies || hierarchy(d), |
---|
| 6706 | root = nodes[0]; |
---|
| 6707 | root.x = 0; |
---|
| 6708 | root.y = 0; |
---|
| 6709 | root.dx = size[0]; |
---|
| 6710 | root.dy = size[1]; |
---|
| 6711 | if (stickies) hierarchy.revalue(root); |
---|
| 6712 | scale([root], root.dx * root.dy / root.value); |
---|
| 6713 | (stickies ? stickify : squarify)(root); |
---|
| 6714 | if (sticky) stickies = nodes; |
---|
| 6715 | return nodes; |
---|
| 6716 | } |
---|
| 6717 | |
---|
| 6718 | treemap.size = function(x) { |
---|
| 6719 | if (!arguments.length) return size; |
---|
| 6720 | size = x; |
---|
| 6721 | return treemap; |
---|
| 6722 | }; |
---|
| 6723 | |
---|
| 6724 | treemap.padding = function(x) { |
---|
| 6725 | if (!arguments.length) return padding; |
---|
| 6726 | |
---|
| 6727 | function padFunction(node) { |
---|
| 6728 | var p = x.call(treemap, node, node.depth); |
---|
| 6729 | return p == null |
---|
| 6730 | ? d3_layout_treemapPadNull(node) |
---|
| 6731 | : d3_layout_treemapPad(node, typeof p === "number" ? [p, p, p, p] : p); |
---|
| 6732 | } |
---|
| 6733 | |
---|
| 6734 | function padConstant(node) { |
---|
| 6735 | return d3_layout_treemapPad(node, x); |
---|
| 6736 | } |
---|
| 6737 | |
---|
| 6738 | var type; |
---|
| 6739 | pad = (padding = x) == null ? d3_layout_treemapPadNull |
---|
| 6740 | : (type = typeof x) === "function" ? padFunction |
---|
| 6741 | : type === "number" ? (x = [x, x, x, x], padConstant) |
---|
| 6742 | : padConstant; |
---|
| 6743 | return treemap; |
---|
| 6744 | }; |
---|
| 6745 | |
---|
| 6746 | treemap.round = function(x) { |
---|
| 6747 | if (!arguments.length) return round != Number; |
---|
| 6748 | round = x ? Math.round : Number; |
---|
| 6749 | return treemap; |
---|
| 6750 | }; |
---|
| 6751 | |
---|
| 6752 | treemap.sticky = function(x) { |
---|
| 6753 | if (!arguments.length) return sticky; |
---|
| 6754 | sticky = x; |
---|
| 6755 | stickies = null; |
---|
| 6756 | return treemap; |
---|
| 6757 | }; |
---|
| 6758 | |
---|
| 6759 | treemap.ratio = function(x) { |
---|
| 6760 | if (!arguments.length) return ratio; |
---|
| 6761 | ratio = x; |
---|
| 6762 | return treemap; |
---|
| 6763 | }; |
---|
| 6764 | |
---|
| 6765 | return d3_layout_hierarchyRebind(treemap, hierarchy); |
---|
| 6766 | }; |
---|
| 6767 | |
---|
| 6768 | function d3_layout_treemapPadNull(node) { |
---|
| 6769 | return {x: node.x, y: node.y, dx: node.dx, dy: node.dy}; |
---|
| 6770 | } |
---|
| 6771 | |
---|
| 6772 | function d3_layout_treemapPad(node, padding) { |
---|
| 6773 | var x = node.x + padding[3], |
---|
| 6774 | y = node.y + padding[0], |
---|
| 6775 | dx = node.dx - padding[1] - padding[3], |
---|
| 6776 | dy = node.dy - padding[0] - padding[2]; |
---|
| 6777 | if (dx < 0) { x += dx / 2; dx = 0; } |
---|
| 6778 | if (dy < 0) { y += dy / 2; dy = 0; } |
---|
| 6779 | return {x: x, y: y, dx: dx, dy: dy}; |
---|
| 6780 | } |
---|
| 6781 | d3.csv = function(url, callback) { |
---|
| 6782 | d3.text(url, "text/csv", function(text) { |
---|
| 6783 | callback(text && d3.csv.parse(text)); |
---|
| 6784 | }); |
---|
| 6785 | }; |
---|
| 6786 | d3.csv.parse = function(text) { |
---|
| 6787 | var header; |
---|
| 6788 | return d3.csv.parseRows(text, function(row, i) { |
---|
| 6789 | if (i) { |
---|
| 6790 | var o = {}, j = -1, m = header.length; |
---|
| 6791 | while (++j < m) o[header[j]] = row[j]; |
---|
| 6792 | return o; |
---|
| 6793 | } else { |
---|
| 6794 | header = row; |
---|
| 6795 | return null; |
---|
| 6796 | } |
---|
| 6797 | }); |
---|
| 6798 | }; |
---|
| 6799 | |
---|
| 6800 | d3.csv.parseRows = function(text, f) { |
---|
| 6801 | var EOL = {}, // sentinel value for end-of-line |
---|
| 6802 | EOF = {}, // sentinel value for end-of-file |
---|
| 6803 | rows = [], // output rows |
---|
| 6804 | re = /\r\n|[,\r\n]/g, // field separator regex |
---|
| 6805 | n = 0, // the current line number |
---|
| 6806 | t, // the current token |
---|
| 6807 | eol; // is the current token followed by EOL? |
---|
| 6808 | |
---|
| 6809 | re.lastIndex = 0; // work-around bug in FF 3.6 |
---|
| 6810 | |
---|
| 6811 | /** @private Returns the next token. */ |
---|
| 6812 | function token() { |
---|
| 6813 | if (re.lastIndex >= text.length) return EOF; // special case: end of file |
---|
| 6814 | if (eol) { eol = false; return EOL; } // special case: end of line |
---|
| 6815 | |
---|
| 6816 | // special case: quotes |
---|
| 6817 | var j = re.lastIndex; |
---|
| 6818 | if (text.charCodeAt(j) === 34) { |
---|
| 6819 | var i = j; |
---|
| 6820 | while (i++ < text.length) { |
---|
| 6821 | if (text.charCodeAt(i) === 34) { |
---|
| 6822 | if (text.charCodeAt(i + 1) !== 34) break; |
---|
| 6823 | i++; |
---|
| 6824 | } |
---|
| 6825 | } |
---|
| 6826 | re.lastIndex = i + 2; |
---|
| 6827 | var c = text.charCodeAt(i + 1); |
---|
| 6828 | if (c === 13) { |
---|
| 6829 | eol = true; |
---|
| 6830 | if (text.charCodeAt(i + 2) === 10) re.lastIndex++; |
---|
| 6831 | } else if (c === 10) { |
---|
| 6832 | eol = true; |
---|
| 6833 | } |
---|
| 6834 | return text.substring(j + 1, i).replace(/""/g, "\""); |
---|
| 6835 | } |
---|
| 6836 | |
---|
| 6837 | // common case |
---|
| 6838 | var m = re.exec(text); |
---|
| 6839 | if (m) { |
---|
| 6840 | eol = m[0].charCodeAt(0) !== 44; |
---|
| 6841 | return text.substring(j, m.index); |
---|
| 6842 | } |
---|
| 6843 | re.lastIndex = text.length; |
---|
| 6844 | return text.substring(j); |
---|
| 6845 | } |
---|
| 6846 | |
---|
| 6847 | while ((t = token()) !== EOF) { |
---|
| 6848 | var a = []; |
---|
| 6849 | while ((t !== EOL) && (t !== EOF)) { |
---|
| 6850 | a.push(t); |
---|
| 6851 | t = token(); |
---|
| 6852 | } |
---|
| 6853 | if (f && !(a = f(a, n++))) continue; |
---|
| 6854 | rows.push(a); |
---|
| 6855 | } |
---|
| 6856 | |
---|
| 6857 | return rows; |
---|
| 6858 | }; |
---|
| 6859 | d3.csv.format = function(rows) { |
---|
| 6860 | return rows.map(d3_csv_formatRow).join("\n"); |
---|
| 6861 | }; |
---|
| 6862 | |
---|
| 6863 | function d3_csv_formatRow(row) { |
---|
| 6864 | return row.map(d3_csv_formatValue).join(","); |
---|
| 6865 | } |
---|
| 6866 | |
---|
| 6867 | function d3_csv_formatValue(text) { |
---|
| 6868 | return /[",\n]/.test(text) |
---|
| 6869 | ? "\"" + text.replace(/\"/g, "\"\"") + "\"" |
---|
| 6870 | : text; |
---|
| 6871 | } |
---|
| 6872 | d3.geo = {}; |
---|
| 6873 | |
---|
| 6874 | var d3_geo_radians = Math.PI / 180; |
---|
| 6875 | // TODO clip input coordinates on opposite hemisphere |
---|
| 6876 | d3.geo.azimuthal = function() { |
---|
| 6877 | var mode = "orthographic", // or stereographic, gnomonic, equidistant or equalarea |
---|
| 6878 | origin, |
---|
| 6879 | scale = 200, |
---|
| 6880 | translate = [480, 250], |
---|
| 6881 | x0, |
---|
| 6882 | y0, |
---|
| 6883 | cy0, |
---|
| 6884 | sy0; |
---|
| 6885 | |
---|
| 6886 | function azimuthal(coordinates) { |
---|
| 6887 | var x1 = coordinates[0] * d3_geo_radians - x0, |
---|
| 6888 | y1 = coordinates[1] * d3_geo_radians, |
---|
| 6889 | cx1 = Math.cos(x1), |
---|
| 6890 | sx1 = Math.sin(x1), |
---|
| 6891 | cy1 = Math.cos(y1), |
---|
| 6892 | sy1 = Math.sin(y1), |
---|
| 6893 | cc = mode !== "orthographic" ? sy0 * sy1 + cy0 * cy1 * cx1 : null, |
---|
| 6894 | c, |
---|
| 6895 | k = mode === "stereographic" ? 1 / (1 + cc) |
---|
| 6896 | : mode === "gnomonic" ? 1 / cc |
---|
| 6897 | : mode === "equidistant" ? (c = Math.acos(cc), c ? c / Math.sin(c) : 0) |
---|
| 6898 | : mode === "equalarea" ? Math.sqrt(2 / (1 + cc)) |
---|
| 6899 | : 1, |
---|
| 6900 | x = k * cy1 * sx1, |
---|
| 6901 | y = k * (sy0 * cy1 * cx1 - cy0 * sy1); |
---|
| 6902 | return [ |
---|
| 6903 | scale * x + translate[0], |
---|
| 6904 | scale * y + translate[1] |
---|
| 6905 | ]; |
---|
| 6906 | } |
---|
| 6907 | |
---|
| 6908 | azimuthal.invert = function(coordinates) { |
---|
| 6909 | var x = (coordinates[0] - translate[0]) / scale, |
---|
| 6910 | y = (coordinates[1] - translate[1]) / scale, |
---|
| 6911 | p = Math.sqrt(x * x + y * y), |
---|
| 6912 | c = mode === "stereographic" ? 2 * Math.atan(p) |
---|
| 6913 | : mode === "gnomonic" ? Math.atan(p) |
---|
| 6914 | : mode === "equidistant" ? p |
---|
| 6915 | : mode === "equalarea" ? 2 * Math.asin(.5 * p) |
---|
| 6916 | : Math.asin(p), |
---|
| 6917 | sc = Math.sin(c), |
---|
| 6918 | cc = Math.cos(c); |
---|
| 6919 | return [ |
---|
| 6920 | (x0 + Math.atan2(x * sc, p * cy0 * cc + y * sy0 * sc)) / d3_geo_radians, |
---|
| 6921 | Math.asin(cc * sy0 - (p ? (y * sc * cy0) / p : 0)) / d3_geo_radians |
---|
| 6922 | ]; |
---|
| 6923 | }; |
---|
| 6924 | |
---|
| 6925 | azimuthal.mode = function(x) { |
---|
| 6926 | if (!arguments.length) return mode; |
---|
| 6927 | mode = x + ""; |
---|
| 6928 | return azimuthal; |
---|
| 6929 | }; |
---|
| 6930 | |
---|
| 6931 | azimuthal.origin = function(x) { |
---|
| 6932 | if (!arguments.length) return origin; |
---|
| 6933 | origin = x; |
---|
| 6934 | x0 = origin[0] * d3_geo_radians; |
---|
| 6935 | y0 = origin[1] * d3_geo_radians; |
---|
| 6936 | cy0 = Math.cos(y0); |
---|
| 6937 | sy0 = Math.sin(y0); |
---|
| 6938 | return azimuthal; |
---|
| 6939 | }; |
---|
| 6940 | |
---|
| 6941 | azimuthal.scale = function(x) { |
---|
| 6942 | if (!arguments.length) return scale; |
---|
| 6943 | scale = +x; |
---|
| 6944 | return azimuthal; |
---|
| 6945 | }; |
---|
| 6946 | |
---|
| 6947 | azimuthal.translate = function(x) { |
---|
| 6948 | if (!arguments.length) return translate; |
---|
| 6949 | translate = [+x[0], +x[1]]; |
---|
| 6950 | return azimuthal; |
---|
| 6951 | }; |
---|
| 6952 | |
---|
| 6953 | return azimuthal.origin([0, 0]); |
---|
| 6954 | }; |
---|
| 6955 | // Derived from Tom Carden's Albers implementation for Protovis. |
---|
| 6956 | // http://gist.github.com/476238 |
---|
| 6957 | // http://mathworld.wolfram.com/AlbersEqual-AreaConicProjection.html |
---|
| 6958 | |
---|
| 6959 | d3.geo.albers = function() { |
---|
| 6960 | var origin = [-98, 38], |
---|
| 6961 | parallels = [29.5, 45.5], |
---|
| 6962 | scale = 1000, |
---|
| 6963 | translate = [480, 250], |
---|
| 6964 | lng0, // d3_geo_radians * origin[0] |
---|
| 6965 | n, |
---|
| 6966 | C, |
---|
| 6967 | p0; |
---|
| 6968 | |
---|
| 6969 | function albers(coordinates) { |
---|
| 6970 | var t = n * (d3_geo_radians * coordinates[0] - lng0), |
---|
| 6971 | p = Math.sqrt(C - 2 * n * Math.sin(d3_geo_radians * coordinates[1])) / n; |
---|
| 6972 | return [ |
---|
| 6973 | scale * p * Math.sin(t) + translate[0], |
---|
| 6974 | scale * (p * Math.cos(t) - p0) + translate[1] |
---|
| 6975 | ]; |
---|
| 6976 | } |
---|
| 6977 | |
---|
| 6978 | albers.invert = function(coordinates) { |
---|
| 6979 | var x = (coordinates[0] - translate[0]) / scale, |
---|
| 6980 | y = (coordinates[1] - translate[1]) / scale, |
---|
| 6981 | p0y = p0 + y, |
---|
| 6982 | t = Math.atan2(x, p0y), |
---|
| 6983 | p = Math.sqrt(x * x + p0y * p0y); |
---|
| 6984 | return [ |
---|
| 6985 | (lng0 + t / n) / d3_geo_radians, |
---|
| 6986 | Math.asin((C - p * p * n * n) / (2 * n)) / d3_geo_radians |
---|
| 6987 | ]; |
---|
| 6988 | }; |
---|
| 6989 | |
---|
| 6990 | function reload() { |
---|
| 6991 | var phi1 = d3_geo_radians * parallels[0], |
---|
| 6992 | phi2 = d3_geo_radians * parallels[1], |
---|
| 6993 | lat0 = d3_geo_radians * origin[1], |
---|
| 6994 | s = Math.sin(phi1), |
---|
| 6995 | c = Math.cos(phi1); |
---|
| 6996 | lng0 = d3_geo_radians * origin[0]; |
---|
| 6997 | n = .5 * (s + Math.sin(phi2)); |
---|
| 6998 | C = c * c + 2 * n * s; |
---|
| 6999 | p0 = Math.sqrt(C - 2 * n * Math.sin(lat0)) / n; |
---|
| 7000 | return albers; |
---|
| 7001 | } |
---|
| 7002 | |
---|
| 7003 | albers.origin = function(x) { |
---|
| 7004 | if (!arguments.length) return origin; |
---|
| 7005 | origin = [+x[0], +x[1]]; |
---|
| 7006 | return reload(); |
---|
| 7007 | }; |
---|
| 7008 | |
---|
| 7009 | albers.parallels = function(x) { |
---|
| 7010 | if (!arguments.length) return parallels; |
---|
| 7011 | parallels = [+x[0], +x[1]]; |
---|
| 7012 | return reload(); |
---|
| 7013 | }; |
---|
| 7014 | |
---|
| 7015 | albers.scale = function(x) { |
---|
| 7016 | if (!arguments.length) return scale; |
---|
| 7017 | scale = +x; |
---|
| 7018 | return albers; |
---|
| 7019 | }; |
---|
| 7020 | |
---|
| 7021 | albers.translate = function(x) { |
---|
| 7022 | if (!arguments.length) return translate; |
---|
| 7023 | translate = [+x[0], +x[1]]; |
---|
| 7024 | return albers; |
---|
| 7025 | }; |
---|
| 7026 | |
---|
| 7027 | return reload(); |
---|
| 7028 | }; |
---|
| 7029 | |
---|
| 7030 | // A composite projection for the United States, 960x500. The set of standard |
---|
| 7031 | // parallels for each region comes from USGS, which is published here: |
---|
| 7032 | // http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#albers |
---|
| 7033 | // TODO allow the composite projection to be rescaled? |
---|
| 7034 | d3.geo.albersUsa = function() { |
---|
| 7035 | var lower48 = d3.geo.albers(); |
---|
| 7036 | |
---|
| 7037 | var alaska = d3.geo.albers() |
---|
| 7038 | .origin([-160, 60]) |
---|
| 7039 | .parallels([55, 65]); |
---|
| 7040 | |
---|
| 7041 | var hawaii = d3.geo.albers() |
---|
| 7042 | .origin([-160, 20]) |
---|
| 7043 | .parallels([8, 18]); |
---|
| 7044 | |
---|
| 7045 | var puertoRico = d3.geo.albers() |
---|
| 7046 | .origin([-60, 10]) |
---|
| 7047 | .parallels([8, 18]); |
---|
| 7048 | |
---|
| 7049 | function albersUsa(coordinates) { |
---|
| 7050 | var lon = coordinates[0], |
---|
| 7051 | lat = coordinates[1]; |
---|
| 7052 | return (lat > 50 ? alaska |
---|
| 7053 | : lon < -140 ? hawaii |
---|
| 7054 | : lat < 21 ? puertoRico |
---|
| 7055 | : lower48)(coordinates); |
---|
| 7056 | } |
---|
| 7057 | |
---|
| 7058 | albersUsa.scale = function(x) { |
---|
| 7059 | if (!arguments.length) return lower48.scale(); |
---|
| 7060 | lower48.scale(x); |
---|
| 7061 | alaska.scale(x * .6); |
---|
| 7062 | hawaii.scale(x); |
---|
| 7063 | puertoRico.scale(x * 1.5); |
---|
| 7064 | return albersUsa.translate(lower48.translate()); |
---|
| 7065 | }; |
---|
| 7066 | |
---|
| 7067 | albersUsa.translate = function(x) { |
---|
| 7068 | if (!arguments.length) return lower48.translate(); |
---|
| 7069 | var dz = lower48.scale() / 1000, |
---|
| 7070 | dx = x[0], |
---|
| 7071 | dy = x[1]; |
---|
| 7072 | lower48.translate(x); |
---|
| 7073 | alaska.translate([dx - 400 * dz, dy + 170 * dz]); |
---|
| 7074 | hawaii.translate([dx - 190 * dz, dy + 200 * dz]); |
---|
| 7075 | puertoRico.translate([dx + 580 * dz, dy + 430 * dz]); |
---|
| 7076 | return albersUsa; |
---|
| 7077 | }; |
---|
| 7078 | |
---|
| 7079 | return albersUsa.scale(lower48.scale()); |
---|
| 7080 | }; |
---|
| 7081 | d3.geo.bonne = function() { |
---|
| 7082 | var scale = 200, |
---|
| 7083 | translate = [480, 250], |
---|
| 7084 | x0, // origin longitude in radians |
---|
| 7085 | y0, // origin latitude in radians |
---|
| 7086 | y1, // parallel latitude in radians |
---|
| 7087 | c1; // cot(y1) |
---|
| 7088 | |
---|
| 7089 | function bonne(coordinates) { |
---|
| 7090 | var x = coordinates[0] * d3_geo_radians - x0, |
---|
| 7091 | y = coordinates[1] * d3_geo_radians - y0; |
---|
| 7092 | if (y1) { |
---|
| 7093 | var p = c1 + y1 - y, E = x * Math.cos(y) / p; |
---|
| 7094 | x = p * Math.sin(E); |
---|
| 7095 | y = p * Math.cos(E) - c1; |
---|
| 7096 | } else { |
---|
| 7097 | x *= Math.cos(y); |
---|
| 7098 | y *= -1; |
---|
| 7099 | } |
---|
| 7100 | return [ |
---|
| 7101 | scale * x + translate[0], |
---|
| 7102 | scale * y + translate[1] |
---|
| 7103 | ]; |
---|
| 7104 | } |
---|
| 7105 | |
---|
| 7106 | bonne.invert = function(coordinates) { |
---|
| 7107 | var x = (coordinates[0] - translate[0]) / scale, |
---|
| 7108 | y = (coordinates[1] - translate[1]) / scale; |
---|
| 7109 | if (y1) { |
---|
| 7110 | var c = c1 + y, p = Math.sqrt(x * x + c * c); |
---|
| 7111 | y = c1 + y1 - p; |
---|
| 7112 | x = x0 + p * Math.atan2(x, c) / Math.cos(y); |
---|
| 7113 | } else { |
---|
| 7114 | y *= -1; |
---|
| 7115 | x /= Math.cos(y); |
---|
| 7116 | } |
---|
| 7117 | return [ |
---|
| 7118 | x / d3_geo_radians, |
---|
| 7119 | y / d3_geo_radians |
---|
| 7120 | ]; |
---|
| 7121 | }; |
---|
| 7122 | |
---|
| 7123 | // 90° for Werner, 0° for Sinusoidal |
---|
| 7124 | bonne.parallel = function(x) { |
---|
| 7125 | if (!arguments.length) return y1 / d3_geo_radians; |
---|
| 7126 | c1 = 1 / Math.tan(y1 = x * d3_geo_radians); |
---|
| 7127 | return bonne; |
---|
| 7128 | }; |
---|
| 7129 | |
---|
| 7130 | bonne.origin = function(x) { |
---|
| 7131 | if (!arguments.length) return [x0 / d3_geo_radians, y0 / d3_geo_radians]; |
---|
| 7132 | x0 = x[0] * d3_geo_radians; |
---|
| 7133 | y0 = x[1] * d3_geo_radians; |
---|
| 7134 | return bonne; |
---|
| 7135 | }; |
---|
| 7136 | |
---|
| 7137 | bonne.scale = function(x) { |
---|
| 7138 | if (!arguments.length) return scale; |
---|
| 7139 | scale = +x; |
---|
| 7140 | return bonne; |
---|
| 7141 | }; |
---|
| 7142 | |
---|
| 7143 | bonne.translate = function(x) { |
---|
| 7144 | if (!arguments.length) return translate; |
---|
| 7145 | translate = [+x[0], +x[1]]; |
---|
| 7146 | return bonne; |
---|
| 7147 | }; |
---|
| 7148 | |
---|
| 7149 | return bonne.origin([0, 0]).parallel(45); |
---|
| 7150 | }; |
---|
| 7151 | d3.geo.equirectangular = function() { |
---|
| 7152 | var scale = 500, |
---|
| 7153 | translate = [480, 250]; |
---|
| 7154 | |
---|
| 7155 | function equirectangular(coordinates) { |
---|
| 7156 | var x = coordinates[0] / 360, |
---|
| 7157 | y = -coordinates[1] / 360; |
---|
| 7158 | return [ |
---|
| 7159 | scale * x + translate[0], |
---|
| 7160 | scale * y + translate[1] |
---|
| 7161 | ]; |
---|
| 7162 | } |
---|
| 7163 | |
---|
| 7164 | equirectangular.invert = function(coordinates) { |
---|
| 7165 | var x = (coordinates[0] - translate[0]) / scale, |
---|
| 7166 | y = (coordinates[1] - translate[1]) / scale; |
---|
| 7167 | return [ |
---|
| 7168 | 360 * x, |
---|
| 7169 | -360 * y |
---|
| 7170 | ]; |
---|
| 7171 | }; |
---|
| 7172 | |
---|
| 7173 | equirectangular.scale = function(x) { |
---|
| 7174 | if (!arguments.length) return scale; |
---|
| 7175 | scale = +x; |
---|
| 7176 | return equirectangular; |
---|
| 7177 | }; |
---|
| 7178 | |
---|
| 7179 | equirectangular.translate = function(x) { |
---|
| 7180 | if (!arguments.length) return translate; |
---|
| 7181 | translate = [+x[0], +x[1]]; |
---|
| 7182 | return equirectangular; |
---|
| 7183 | }; |
---|
| 7184 | |
---|
| 7185 | return equirectangular; |
---|
| 7186 | }; |
---|
| 7187 | d3.geo.mercator = function() { |
---|
| 7188 | var scale = 500, |
---|
| 7189 | translate = [480, 250]; |
---|
| 7190 | |
---|
| 7191 | function mercator(coordinates) { |
---|
| 7192 | var x = coordinates[0] / 360, |
---|
| 7193 | y = -(Math.log(Math.tan(Math.PI / 4 + coordinates[1] * d3_geo_radians / 2)) / d3_geo_radians) / 360; |
---|
| 7194 | return [ |
---|
| 7195 | scale * x + translate[0], |
---|
| 7196 | scale * Math.max(-.5, Math.min(.5, y)) + translate[1] |
---|
| 7197 | ]; |
---|
| 7198 | } |
---|
| 7199 | |
---|
| 7200 | mercator.invert = function(coordinates) { |
---|
| 7201 | var x = (coordinates[0] - translate[0]) / scale, |
---|
| 7202 | y = (coordinates[1] - translate[1]) / scale; |
---|
| 7203 | return [ |
---|
| 7204 | 360 * x, |
---|
| 7205 | 2 * Math.atan(Math.exp(-360 * y * d3_geo_radians)) / d3_geo_radians - 90 |
---|
| 7206 | ]; |
---|
| 7207 | }; |
---|
| 7208 | |
---|
| 7209 | mercator.scale = function(x) { |
---|
| 7210 | if (!arguments.length) return scale; |
---|
| 7211 | scale = +x; |
---|
| 7212 | return mercator; |
---|
| 7213 | }; |
---|
| 7214 | |
---|
| 7215 | mercator.translate = function(x) { |
---|
| 7216 | if (!arguments.length) return translate; |
---|
| 7217 | translate = [+x[0], +x[1]]; |
---|
| 7218 | return mercator; |
---|
| 7219 | }; |
---|
| 7220 | |
---|
| 7221 | return mercator; |
---|
| 7222 | }; |
---|
| 7223 | function d3_geo_type(types, defaultValue) { |
---|
| 7224 | return function(object) { |
---|
| 7225 | return object && types.hasOwnProperty(object.type) ? types[object.type](object) : defaultValue; |
---|
| 7226 | }; |
---|
| 7227 | } |
---|
| 7228 | /** |
---|
| 7229 | * Returns a function that, given a GeoJSON object (e.g., a feature), returns |
---|
| 7230 | * the corresponding SVG path. The function can be customized by overriding the |
---|
| 7231 | * projection. Point features are mapped to circles with a default radius of |
---|
| 7232 | * 4.5px; the radius can be specified either as a constant or a function that |
---|
| 7233 | * is evaluated per object. |
---|
| 7234 | */ |
---|
| 7235 | d3.geo.path = function() { |
---|
| 7236 | var pointRadius = 4.5, |
---|
| 7237 | pointCircle = d3_path_circle(pointRadius), |
---|
| 7238 | projection = d3.geo.albersUsa(); |
---|
| 7239 | |
---|
| 7240 | function path(d, i) { |
---|
| 7241 | if (typeof pointRadius === "function") { |
---|
| 7242 | pointCircle = d3_path_circle(pointRadius.apply(this, arguments)); |
---|
| 7243 | } |
---|
| 7244 | return pathType(d) || null; |
---|
| 7245 | } |
---|
| 7246 | |
---|
| 7247 | function project(coordinates) { |
---|
| 7248 | return projection(coordinates).join(","); |
---|
| 7249 | } |
---|
| 7250 | |
---|
| 7251 | var pathType = d3_geo_type({ |
---|
| 7252 | |
---|
| 7253 | FeatureCollection: function(o) { |
---|
| 7254 | var path = [], |
---|
| 7255 | features = o.features, |
---|
| 7256 | i = -1, // features.index |
---|
| 7257 | n = features.length; |
---|
| 7258 | while (++i < n) path.push(pathType(features[i].geometry)); |
---|
| 7259 | return path.join(""); |
---|
| 7260 | }, |
---|
| 7261 | |
---|
| 7262 | Feature: function(o) { |
---|
| 7263 | return pathType(o.geometry); |
---|
| 7264 | }, |
---|
| 7265 | |
---|
| 7266 | Point: function(o) { |
---|
| 7267 | return "M" + project(o.coordinates) + pointCircle; |
---|
| 7268 | }, |
---|
| 7269 | |
---|
| 7270 | MultiPoint: function(o) { |
---|
| 7271 | var path = [], |
---|
| 7272 | coordinates = o.coordinates, |
---|
| 7273 | i = -1, // coordinates.index |
---|
| 7274 | n = coordinates.length; |
---|
| 7275 | while (++i < n) path.push("M", project(coordinates[i]), pointCircle); |
---|
| 7276 | return path.join(""); |
---|
| 7277 | }, |
---|
| 7278 | |
---|
| 7279 | LineString: function(o) { |
---|
| 7280 | var path = ["M"], |
---|
| 7281 | coordinates = o.coordinates, |
---|
| 7282 | i = -1, // coordinates.index |
---|
| 7283 | n = coordinates.length; |
---|
| 7284 | while (++i < n) path.push(project(coordinates[i]), "L"); |
---|
| 7285 | path.pop(); |
---|
| 7286 | return path.join(""); |
---|
| 7287 | }, |
---|
| 7288 | |
---|
| 7289 | MultiLineString: function(o) { |
---|
| 7290 | var path = [], |
---|
| 7291 | coordinates = o.coordinates, |
---|
| 7292 | i = -1, // coordinates.index |
---|
| 7293 | n = coordinates.length, |
---|
| 7294 | subcoordinates, // coordinates[i] |
---|
| 7295 | j, // subcoordinates.index |
---|
| 7296 | m; // subcoordinates.length |
---|
| 7297 | while (++i < n) { |
---|
| 7298 | subcoordinates = coordinates[i]; |
---|
| 7299 | j = -1; |
---|
| 7300 | m = subcoordinates.length; |
---|
| 7301 | path.push("M"); |
---|
| 7302 | while (++j < m) path.push(project(subcoordinates[j]), "L"); |
---|
| 7303 | path.pop(); |
---|
| 7304 | } |
---|
| 7305 | return path.join(""); |
---|
| 7306 | }, |
---|
| 7307 | |
---|
| 7308 | Polygon: function(o) { |
---|
| 7309 | var path = [], |
---|
| 7310 | coordinates = o.coordinates, |
---|
| 7311 | i = -1, // coordinates.index |
---|
| 7312 | n = coordinates.length, |
---|
| 7313 | subcoordinates, // coordinates[i] |
---|
| 7314 | j, // subcoordinates.index |
---|
| 7315 | m; // subcoordinates.length |
---|
| 7316 | while (++i < n) { |
---|
| 7317 | subcoordinates = coordinates[i]; |
---|
| 7318 | j = -1; |
---|
| 7319 | if ((m = subcoordinates.length - 1) > 0) { |
---|
| 7320 | path.push("M"); |
---|
| 7321 | while (++j < m) path.push(project(subcoordinates[j]), "L"); |
---|
| 7322 | path[path.length - 1] = "Z"; |
---|
| 7323 | } |
---|
| 7324 | } |
---|
| 7325 | return path.join(""); |
---|
| 7326 | }, |
---|
| 7327 | |
---|
| 7328 | MultiPolygon: function(o) { |
---|
| 7329 | var path = [], |
---|
| 7330 | coordinates = o.coordinates, |
---|
| 7331 | i = -1, // coordinates index |
---|
| 7332 | n = coordinates.length, |
---|
| 7333 | subcoordinates, // coordinates[i] |
---|
| 7334 | j, // subcoordinates index |
---|
| 7335 | m, // subcoordinates.length |
---|
| 7336 | subsubcoordinates, // subcoordinates[j] |
---|
| 7337 | k, // subsubcoordinates index |
---|
| 7338 | p; // subsubcoordinates.length |
---|
| 7339 | while (++i < n) { |
---|
| 7340 | subcoordinates = coordinates[i]; |
---|
| 7341 | j = -1; |
---|
| 7342 | m = subcoordinates.length; |
---|
| 7343 | while (++j < m) { |
---|
| 7344 | subsubcoordinates = subcoordinates[j]; |
---|
| 7345 | k = -1; |
---|
| 7346 | if ((p = subsubcoordinates.length - 1) > 0) { |
---|
| 7347 | path.push("M"); |
---|
| 7348 | while (++k < p) path.push(project(subsubcoordinates[k]), "L"); |
---|
| 7349 | path[path.length - 1] = "Z"; |
---|
| 7350 | } |
---|
| 7351 | } |
---|
| 7352 | } |
---|
| 7353 | return path.join(""); |
---|
| 7354 | }, |
---|
| 7355 | |
---|
| 7356 | GeometryCollection: function(o) { |
---|
| 7357 | var path = [], |
---|
| 7358 | geometries = o.geometries, |
---|
| 7359 | i = -1, // geometries index |
---|
| 7360 | n = geometries.length; |
---|
| 7361 | while (++i < n) path.push(pathType(geometries[i])); |
---|
| 7362 | return path.join(""); |
---|
| 7363 | } |
---|
| 7364 | |
---|
| 7365 | }); |
---|
| 7366 | |
---|
| 7367 | var areaType = path.area = d3_geo_type({ |
---|
| 7368 | |
---|
| 7369 | FeatureCollection: function(o) { |
---|
| 7370 | var area = 0, |
---|
| 7371 | features = o.features, |
---|
| 7372 | i = -1, // features.index |
---|
| 7373 | n = features.length; |
---|
| 7374 | while (++i < n) area += areaType(features[i]); |
---|
| 7375 | return area; |
---|
| 7376 | }, |
---|
| 7377 | |
---|
| 7378 | Feature: function(o) { |
---|
| 7379 | return areaType(o.geometry); |
---|
| 7380 | }, |
---|
| 7381 | |
---|
| 7382 | Polygon: function(o) { |
---|
| 7383 | return polygonArea(o.coordinates); |
---|
| 7384 | }, |
---|
| 7385 | |
---|
| 7386 | MultiPolygon: function(o) { |
---|
| 7387 | var sum = 0, |
---|
| 7388 | coordinates = o.coordinates, |
---|
| 7389 | i = -1, // coordinates index |
---|
| 7390 | n = coordinates.length; |
---|
| 7391 | while (++i < n) sum += polygonArea(coordinates[i]); |
---|
| 7392 | return sum; |
---|
| 7393 | }, |
---|
| 7394 | |
---|
| 7395 | GeometryCollection: function(o) { |
---|
| 7396 | var sum = 0, |
---|
| 7397 | geometries = o.geometries, |
---|
| 7398 | i = -1, // geometries index |
---|
| 7399 | n = geometries.length; |
---|
| 7400 | while (++i < n) sum += areaType(geometries[i]); |
---|
| 7401 | return sum; |
---|
| 7402 | } |
---|
| 7403 | |
---|
| 7404 | }, 0); |
---|
| 7405 | |
---|
| 7406 | function polygonArea(coordinates) { |
---|
| 7407 | var sum = area(coordinates[0]), // exterior ring |
---|
| 7408 | i = 0, // coordinates.index |
---|
| 7409 | n = coordinates.length; |
---|
| 7410 | while (++i < n) sum -= area(coordinates[i]); // holes |
---|
| 7411 | return sum; |
---|
| 7412 | } |
---|
| 7413 | |
---|
| 7414 | function polygonCentroid(coordinates) { |
---|
| 7415 | var polygon = d3.geom.polygon(coordinates[0].map(projection)), // exterior ring |
---|
| 7416 | area = polygon.area(), |
---|
| 7417 | centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1), |
---|
| 7418 | x = centroid[0], |
---|
| 7419 | y = centroid[1], |
---|
| 7420 | z = area, |
---|
| 7421 | i = 0, // coordinates index |
---|
| 7422 | n = coordinates.length; |
---|
| 7423 | while (++i < n) { |
---|
| 7424 | polygon = d3.geom.polygon(coordinates[i].map(projection)); // holes |
---|
| 7425 | area = polygon.area(); |
---|
| 7426 | centroid = polygon.centroid(area < 0 ? (area *= -1, 1) : -1); |
---|
| 7427 | x -= centroid[0]; |
---|
| 7428 | y -= centroid[1]; |
---|
| 7429 | z -= area; |
---|
| 7430 | } |
---|
| 7431 | return [x, y, 6 * z]; // weighted centroid |
---|
| 7432 | } |
---|
| 7433 | |
---|
| 7434 | var centroidType = path.centroid = d3_geo_type({ |
---|
| 7435 | |
---|
| 7436 | // TODO FeatureCollection |
---|
| 7437 | // TODO Point |
---|
| 7438 | // TODO MultiPoint |
---|
| 7439 | // TODO LineString |
---|
| 7440 | // TODO MultiLineString |
---|
| 7441 | // TODO GeometryCollection |
---|
| 7442 | |
---|
| 7443 | Feature: function(o) { |
---|
| 7444 | return centroidType(o.geometry); |
---|
| 7445 | }, |
---|
| 7446 | |
---|
| 7447 | Polygon: function(o) { |
---|
| 7448 | var centroid = polygonCentroid(o.coordinates); |
---|
| 7449 | return [centroid[0] / centroid[2], centroid[1] / centroid[2]]; |
---|
| 7450 | }, |
---|
| 7451 | |
---|
| 7452 | MultiPolygon: function(o) { |
---|
| 7453 | var area = 0, |
---|
| 7454 | coordinates = o.coordinates, |
---|
| 7455 | centroid, |
---|
| 7456 | x = 0, |
---|
| 7457 | y = 0, |
---|
| 7458 | z = 0, |
---|
| 7459 | i = -1, // coordinates index |
---|
| 7460 | n = coordinates.length; |
---|
| 7461 | while (++i < n) { |
---|
| 7462 | centroid = polygonCentroid(coordinates[i]); |
---|
| 7463 | x += centroid[0]; |
---|
| 7464 | y += centroid[1]; |
---|
| 7465 | z += centroid[2]; |
---|
| 7466 | } |
---|
| 7467 | return [x / z, y / z]; |
---|
| 7468 | } |
---|
| 7469 | |
---|
| 7470 | }); |
---|
| 7471 | |
---|
| 7472 | function area(coordinates) { |
---|
| 7473 | return Math.abs(d3.geom.polygon(coordinates.map(projection)).area()); |
---|
| 7474 | } |
---|
| 7475 | |
---|
| 7476 | path.projection = function(x) { |
---|
| 7477 | projection = x; |
---|
| 7478 | return path; |
---|
| 7479 | }; |
---|
| 7480 | |
---|
| 7481 | path.pointRadius = function(x) { |
---|
| 7482 | if (typeof x === "function") pointRadius = x; |
---|
| 7483 | else { |
---|
| 7484 | pointRadius = +x; |
---|
| 7485 | pointCircle = d3_path_circle(pointRadius); |
---|
| 7486 | } |
---|
| 7487 | return path; |
---|
| 7488 | }; |
---|
| 7489 | |
---|
| 7490 | return path; |
---|
| 7491 | }; |
---|
| 7492 | |
---|
| 7493 | function d3_path_circle(radius) { |
---|
| 7494 | return "m0," + radius |
---|
| 7495 | + "a" + radius + "," + radius + " 0 1,1 0," + (-2 * radius) |
---|
| 7496 | + "a" + radius + "," + radius + " 0 1,1 0," + (+2 * radius) |
---|
| 7497 | + "z"; |
---|
| 7498 | } |
---|
| 7499 | /** |
---|
| 7500 | * Given a GeoJSON object, returns the corresponding bounding box. The bounding |
---|
| 7501 | * box is represented by a two-dimensional array: [[left, bottom], [right, |
---|
| 7502 | * top]], where left is the minimum longitude, bottom is the minimum latitude, |
---|
| 7503 | * right is maximum longitude, and top is the maximum latitude. |
---|
| 7504 | */ |
---|
| 7505 | d3.geo.bounds = function(feature) { |
---|
| 7506 | var left = Infinity, |
---|
| 7507 | bottom = Infinity, |
---|
| 7508 | right = -Infinity, |
---|
| 7509 | top = -Infinity; |
---|
| 7510 | d3_geo_bounds(feature, function(x, y) { |
---|
| 7511 | if (x < left) left = x; |
---|
| 7512 | if (x > right) right = x; |
---|
| 7513 | if (y < bottom) bottom = y; |
---|
| 7514 | if (y > top) top = y; |
---|
| 7515 | }); |
---|
| 7516 | return [[left, bottom], [right, top]]; |
---|
| 7517 | }; |
---|
| 7518 | |
---|
| 7519 | function d3_geo_bounds(o, f) { |
---|
| 7520 | if (d3_geo_boundsTypes.hasOwnProperty(o.type)) d3_geo_boundsTypes[o.type](o, f); |
---|
| 7521 | } |
---|
| 7522 | |
---|
| 7523 | var d3_geo_boundsTypes = { |
---|
| 7524 | Feature: d3_geo_boundsFeature, |
---|
| 7525 | FeatureCollection: d3_geo_boundsFeatureCollection, |
---|
| 7526 | GeometryCollection: d3_geo_boundsGeometryCollection, |
---|
| 7527 | LineString: d3_geo_boundsLineString, |
---|
| 7528 | MultiLineString: d3_geo_boundsMultiLineString, |
---|
| 7529 | MultiPoint: d3_geo_boundsLineString, |
---|
| 7530 | MultiPolygon: d3_geo_boundsMultiPolygon, |
---|
| 7531 | Point: d3_geo_boundsPoint, |
---|
| 7532 | Polygon: d3_geo_boundsPolygon |
---|
| 7533 | }; |
---|
| 7534 | |
---|
| 7535 | function d3_geo_boundsFeature(o, f) { |
---|
| 7536 | d3_geo_bounds(o.geometry, f); |
---|
| 7537 | } |
---|
| 7538 | |
---|
| 7539 | function d3_geo_boundsFeatureCollection(o, f) { |
---|
| 7540 | for (var a = o.features, i = 0, n = a.length; i < n; i++) { |
---|
| 7541 | d3_geo_bounds(a[i].geometry, f); |
---|
| 7542 | } |
---|
| 7543 | } |
---|
| 7544 | |
---|
| 7545 | function d3_geo_boundsGeometryCollection(o, f) { |
---|
| 7546 | for (var a = o.geometries, i = 0, n = a.length; i < n; i++) { |
---|
| 7547 | d3_geo_bounds(a[i], f); |
---|
| 7548 | } |
---|
| 7549 | } |
---|
| 7550 | |
---|
| 7551 | function d3_geo_boundsLineString(o, f) { |
---|
| 7552 | for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) { |
---|
| 7553 | f.apply(null, a[i]); |
---|
| 7554 | } |
---|
| 7555 | } |
---|
| 7556 | |
---|
| 7557 | function d3_geo_boundsMultiLineString(o, f) { |
---|
| 7558 | for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) { |
---|
| 7559 | for (var b = a[i], j = 0, m = b.length; j < m; j++) { |
---|
| 7560 | f.apply(null, b[j]); |
---|
| 7561 | } |
---|
| 7562 | } |
---|
| 7563 | } |
---|
| 7564 | |
---|
| 7565 | function d3_geo_boundsMultiPolygon(o, f) { |
---|
| 7566 | for (var a = o.coordinates, i = 0, n = a.length; i < n; i++) { |
---|
| 7567 | for (var b = a[i][0], j = 0, m = b.length; j < m; j++) { |
---|
| 7568 | f.apply(null, b[j]); |
---|
| 7569 | } |
---|
| 7570 | } |
---|
| 7571 | } |
---|
| 7572 | |
---|
| 7573 | function d3_geo_boundsPoint(o, f) { |
---|
| 7574 | f.apply(null, o.coordinates); |
---|
| 7575 | } |
---|
| 7576 | |
---|
| 7577 | function d3_geo_boundsPolygon(o, f) { |
---|
| 7578 | for (var a = o.coordinates[0], i = 0, n = a.length; i < n; i++) { |
---|
| 7579 | f.apply(null, a[i]); |
---|
| 7580 | } |
---|
| 7581 | } |
---|
| 7582 | // TODO breakAtDateLine? |
---|
| 7583 | |
---|
| 7584 | d3.geo.circle = function() { |
---|
| 7585 | var origin = [0, 0], |
---|
| 7586 | degrees = 90 - 1e-2, |
---|
| 7587 | radians = degrees * d3_geo_radians, |
---|
| 7588 | arc = d3.geo.greatArc().target(Object); |
---|
| 7589 | |
---|
| 7590 | function circle() { |
---|
| 7591 | // TODO render a circle as a Polygon |
---|
| 7592 | } |
---|
| 7593 | |
---|
| 7594 | function visible(point) { |
---|
| 7595 | return arc.distance(point) < radians; |
---|
| 7596 | } |
---|
| 7597 | |
---|
| 7598 | circle.clip = function(d) { |
---|
| 7599 | arc.source(typeof origin === "function" ? origin.apply(this, arguments) : origin); |
---|
| 7600 | return clipType(d); |
---|
| 7601 | }; |
---|
| 7602 | |
---|
| 7603 | var clipType = d3_geo_type({ |
---|
| 7604 | |
---|
| 7605 | FeatureCollection: function(o) { |
---|
| 7606 | var features = o.features.map(clipType).filter(Object); |
---|
| 7607 | return features && (o = Object.create(o), o.features = features, o); |
---|
| 7608 | }, |
---|
| 7609 | |
---|
| 7610 | Feature: function(o) { |
---|
| 7611 | var geometry = clipType(o.geometry); |
---|
| 7612 | return geometry && (o = Object.create(o), o.geometry = geometry, o); |
---|
| 7613 | }, |
---|
| 7614 | |
---|
| 7615 | Point: function(o) { |
---|
| 7616 | return visible(o.coordinates) && o; |
---|
| 7617 | }, |
---|
| 7618 | |
---|
| 7619 | MultiPoint: function(o) { |
---|
| 7620 | var coordinates = o.coordinates.filter(visible); |
---|
| 7621 | return coordinates.length && { |
---|
| 7622 | type: o.type, |
---|
| 7623 | coordinates: coordinates |
---|
| 7624 | }; |
---|
| 7625 | }, |
---|
| 7626 | |
---|
| 7627 | LineString: function(o) { |
---|
| 7628 | var coordinates = clip(o.coordinates); |
---|
| 7629 | return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o); |
---|
| 7630 | }, |
---|
| 7631 | |
---|
| 7632 | MultiLineString: function(o) { |
---|
| 7633 | var coordinates = o.coordinates.map(clip).filter(function(d) { return d.length; }); |
---|
| 7634 | return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o); |
---|
| 7635 | }, |
---|
| 7636 | |
---|
| 7637 | Polygon: function(o) { |
---|
| 7638 | var coordinates = o.coordinates.map(clip); |
---|
| 7639 | return coordinates[0].length && (o = Object.create(o), o.coordinates = coordinates, o); |
---|
| 7640 | }, |
---|
| 7641 | |
---|
| 7642 | MultiPolygon: function(o) { |
---|
| 7643 | var coordinates = o.coordinates.map(function(d) { return d.map(clip); }).filter(function(d) { return d[0].length; }); |
---|
| 7644 | return coordinates.length && (o = Object.create(o), o.coordinates = coordinates, o); |
---|
| 7645 | }, |
---|
| 7646 | |
---|
| 7647 | GeometryCollection: function(o) { |
---|
| 7648 | var geometries = o.geometries.map(clipType).filter(Object); |
---|
| 7649 | return geometries.length && (o = Object.create(o), o.geometries = geometries, o); |
---|
| 7650 | } |
---|
| 7651 | |
---|
| 7652 | }); |
---|
| 7653 | |
---|
| 7654 | function clip(coordinates) { |
---|
| 7655 | var i = -1, |
---|
| 7656 | n = coordinates.length, |
---|
| 7657 | clipped = [], |
---|
| 7658 | p0, |
---|
| 7659 | p1, |
---|
| 7660 | p2, |
---|
| 7661 | d0, |
---|
| 7662 | d1; |
---|
| 7663 | |
---|
| 7664 | while (++i < n) { |
---|
| 7665 | d1 = arc.distance(p2 = coordinates[i]); |
---|
| 7666 | if (d1 < radians) { |
---|
| 7667 | if (p1) clipped.push(d3_geo_greatArcInterpolate(p1, p2)((d0 - radians) / (d0 - d1))); |
---|
| 7668 | clipped.push(p2); |
---|
| 7669 | p0 = p1 = null; |
---|
| 7670 | } else { |
---|
| 7671 | p1 = p2; |
---|
| 7672 | if (!p0 && clipped.length) { |
---|
| 7673 | clipped.push(d3_geo_greatArcInterpolate(clipped[clipped.length - 1], p1)((radians - d0) / (d1 - d0))); |
---|
| 7674 | p0 = p1; |
---|
| 7675 | } |
---|
| 7676 | } |
---|
| 7677 | d0 = d1; |
---|
| 7678 | } |
---|
| 7679 | |
---|
| 7680 | if (p1 && clipped.length) { |
---|
| 7681 | d1 = arc.distance(p2 = clipped[0]); |
---|
| 7682 | clipped.push(d3_geo_greatArcInterpolate(p1, p2)((d0 - radians) / (d0 - d1))); |
---|
| 7683 | } |
---|
| 7684 | |
---|
| 7685 | return resample(clipped); |
---|
| 7686 | } |
---|
| 7687 | |
---|
| 7688 | // Resample coordinates, creating great arcs between each. |
---|
| 7689 | function resample(coordinates) { |
---|
| 7690 | var i = 0, |
---|
| 7691 | n = coordinates.length, |
---|
| 7692 | j, |
---|
| 7693 | m, |
---|
| 7694 | resampled = n ? [coordinates[0]] : coordinates, |
---|
| 7695 | resamples, |
---|
| 7696 | origin = arc.source(); |
---|
| 7697 | |
---|
| 7698 | while (++i < n) { |
---|
| 7699 | resamples = arc.source(coordinates[i - 1])(coordinates[i]).coordinates; |
---|
| 7700 | for (j = 0, m = resamples.length; ++j < m;) resampled.push(resamples[j]); |
---|
| 7701 | } |
---|
| 7702 | |
---|
| 7703 | arc.source(origin); |
---|
| 7704 | return resampled; |
---|
| 7705 | } |
---|
| 7706 | |
---|
| 7707 | circle.origin = function(x) { |
---|
| 7708 | if (!arguments.length) return origin; |
---|
| 7709 | origin = x; |
---|
| 7710 | return circle; |
---|
| 7711 | }; |
---|
| 7712 | |
---|
| 7713 | circle.angle = function(x) { |
---|
| 7714 | if (!arguments.length) return degrees; |
---|
| 7715 | radians = (degrees = +x) * d3_geo_radians; |
---|
| 7716 | return circle; |
---|
| 7717 | }; |
---|
| 7718 | |
---|
| 7719 | // Precision is specified in degrees. |
---|
| 7720 | circle.precision = function(x) { |
---|
| 7721 | if (!arguments.length) return arc.precision(); |
---|
| 7722 | arc.precision(x); |
---|
| 7723 | return circle; |
---|
| 7724 | }; |
---|
| 7725 | |
---|
| 7726 | return circle; |
---|
| 7727 | } |
---|
| 7728 | d3.geo.greatArc = function() { |
---|
| 7729 | var source = d3_geo_greatArcSource, |
---|
| 7730 | target = d3_geo_greatArcTarget, |
---|
| 7731 | precision = 6 * d3_geo_radians; |
---|
| 7732 | |
---|
| 7733 | function greatArc() { |
---|
| 7734 | var a = typeof source === "function" ? source.apply(this, arguments) : source, |
---|
| 7735 | b = typeof target === "function" ? target.apply(this, arguments) : target, |
---|
| 7736 | i = d3_geo_greatArcInterpolate(a, b), |
---|
| 7737 | dt = precision / i.d, |
---|
| 7738 | t = 0, |
---|
| 7739 | coordinates = [a]; |
---|
| 7740 | while ((t += dt) < 1) coordinates.push(i(t)); |
---|
| 7741 | coordinates.push(b); |
---|
| 7742 | return { |
---|
| 7743 | type: "LineString", |
---|
| 7744 | coordinates: coordinates |
---|
| 7745 | }; |
---|
| 7746 | } |
---|
| 7747 | |
---|
| 7748 | // Length returned in radians; multiply by radius for distance. |
---|
| 7749 | greatArc.distance = function() { |
---|
| 7750 | var a = typeof source === "function" ? source.apply(this, arguments) : source, |
---|
| 7751 | b = typeof target === "function" ? target.apply(this, arguments) : target; |
---|
| 7752 | return d3_geo_greatArcInterpolate(a, b).d; |
---|
| 7753 | }; |
---|
| 7754 | |
---|
| 7755 | greatArc.source = function(x) { |
---|
| 7756 | if (!arguments.length) return source; |
---|
| 7757 | source = x; |
---|
| 7758 | return greatArc; |
---|
| 7759 | }; |
---|
| 7760 | |
---|
| 7761 | greatArc.target = function(x) { |
---|
| 7762 | if (!arguments.length) return target; |
---|
| 7763 | target = x; |
---|
| 7764 | return greatArc; |
---|
| 7765 | }; |
---|
| 7766 | |
---|
| 7767 | // Precision is specified in degrees. |
---|
| 7768 | greatArc.precision = function(x) { |
---|
| 7769 | if (!arguments.length) return precision / d3_geo_radians; |
---|
| 7770 | precision = x * d3_geo_radians; |
---|
| 7771 | return greatArc; |
---|
| 7772 | }; |
---|
| 7773 | |
---|
| 7774 | return greatArc; |
---|
| 7775 | }; |
---|
| 7776 | |
---|
| 7777 | function d3_geo_greatArcSource(d) { |
---|
| 7778 | return d.source; |
---|
| 7779 | } |
---|
| 7780 | |
---|
| 7781 | function d3_geo_greatArcTarget(d) { |
---|
| 7782 | return d.target; |
---|
| 7783 | } |
---|
| 7784 | |
---|
| 7785 | function d3_geo_greatArcInterpolate(a, b) { |
---|
| 7786 | var x0 = a[0] * d3_geo_radians, cx0 = Math.cos(x0), sx0 = Math.sin(x0), |
---|
| 7787 | y0 = a[1] * d3_geo_radians, cy0 = Math.cos(y0), sy0 = Math.sin(y0), |
---|
| 7788 | x1 = b[0] * d3_geo_radians, cx1 = Math.cos(x1), sx1 = Math.sin(x1), |
---|
| 7789 | y1 = b[1] * d3_geo_radians, cy1 = Math.cos(y1), sy1 = Math.sin(y1), |
---|
| 7790 | d = interpolate.d = Math.acos(Math.max(-1, Math.min(1, sy0 * sy1 + cy0 * cy1 * Math.cos(x1 - x0)))), |
---|
| 7791 | sd = Math.sin(d); |
---|
| 7792 | |
---|
| 7793 | // From http://williams.best.vwh.net/avform.htm#Intermediate |
---|
| 7794 | function interpolate(t) { |
---|
| 7795 | var A = Math.sin(d - (t *= d)) / sd, |
---|
| 7796 | B = Math.sin(t) / sd, |
---|
| 7797 | x = A * cy0 * cx0 + B * cy1 * cx1, |
---|
| 7798 | y = A * cy0 * sx0 + B * cy1 * sx1, |
---|
| 7799 | z = A * sy0 + B * sy1; |
---|
| 7800 | return [ |
---|
| 7801 | Math.atan2(y, x) / d3_geo_radians, |
---|
| 7802 | Math.atan2(z, Math.sqrt(x * x + y * y)) / d3_geo_radians |
---|
| 7803 | ]; |
---|
| 7804 | } |
---|
| 7805 | |
---|
| 7806 | return interpolate; |
---|
| 7807 | } |
---|
| 7808 | d3.geo.greatCircle = d3.geo.circle; |
---|
| 7809 | d3.geom = {}; |
---|
| 7810 | /** |
---|
| 7811 | * Computes a contour for a given input grid function using the <a |
---|
| 7812 | * href="http://en.wikipedia.org/wiki/Marching_squares">marching |
---|
| 7813 | * squares</a> algorithm. Returns the contour polygon as an array of points. |
---|
| 7814 | * |
---|
| 7815 | * @param grid a two-input function(x, y) that returns true for values |
---|
| 7816 | * inside the contour and false for values outside the contour. |
---|
| 7817 | * @param start an optional starting point [x, y] on the grid. |
---|
| 7818 | * @returns polygon [[x1, y1], [x2, y2], âŠ] |
---|
| 7819 | */ |
---|
| 7820 | d3.geom.contour = function(grid, start) { |
---|
| 7821 | var s = start || d3_geom_contourStart(grid), // starting point |
---|
| 7822 | c = [], // contour polygon |
---|
| 7823 | x = s[0], // current x position |
---|
| 7824 | y = s[1], // current y position |
---|
| 7825 | dx = 0, // next x direction |
---|
| 7826 | dy = 0, // next y direction |
---|
| 7827 | pdx = NaN, // previous x direction |
---|
| 7828 | pdy = NaN, // previous y direction |
---|
| 7829 | i = 0; |
---|
| 7830 | |
---|
| 7831 | do { |
---|
| 7832 | // determine marching squares index |
---|
| 7833 | i = 0; |
---|
| 7834 | if (grid(x-1, y-1)) i += 1; |
---|
| 7835 | if (grid(x, y-1)) i += 2; |
---|
| 7836 | if (grid(x-1, y )) i += 4; |
---|
| 7837 | if (grid(x, y )) i += 8; |
---|
| 7838 | |
---|
| 7839 | // determine next direction |
---|
| 7840 | if (i === 6) { |
---|
| 7841 | dx = pdy === -1 ? -1 : 1; |
---|
| 7842 | dy = 0; |
---|
| 7843 | } else if (i === 9) { |
---|
| 7844 | dx = 0; |
---|
| 7845 | dy = pdx === 1 ? -1 : 1; |
---|
| 7846 | } else { |
---|
| 7847 | dx = d3_geom_contourDx[i]; |
---|
| 7848 | dy = d3_geom_contourDy[i]; |
---|
| 7849 | } |
---|
| 7850 | |
---|
| 7851 | // update contour polygon |
---|
| 7852 | if (dx != pdx && dy != pdy) { |
---|
| 7853 | c.push([x, y]); |
---|
| 7854 | pdx = dx; |
---|
| 7855 | pdy = dy; |
---|
| 7856 | } |
---|
| 7857 | |
---|
| 7858 | x += dx; |
---|
| 7859 | y += dy; |
---|
| 7860 | } while (s[0] != x || s[1] != y); |
---|
| 7861 | |
---|
| 7862 | return c; |
---|
| 7863 | }; |
---|
| 7864 | |
---|
| 7865 | // lookup tables for marching directions |
---|
| 7866 | var d3_geom_contourDx = [1, 0, 1, 1,-1, 0,-1, 1,0, 0,0,0,-1, 0,-1,NaN], |
---|
| 7867 | d3_geom_contourDy = [0,-1, 0, 0, 0,-1, 0, 0,1,-1,1,1, 0,-1, 0,NaN]; |
---|
| 7868 | |
---|
| 7869 | function d3_geom_contourStart(grid) { |
---|
| 7870 | var x = 0, |
---|
| 7871 | y = 0; |
---|
| 7872 | |
---|
| 7873 | // search for a starting point; begin at origin |
---|
| 7874 | // and proceed along outward-expanding diagonals |
---|
| 7875 | while (true) { |
---|
| 7876 | if (grid(x,y)) { |
---|
| 7877 | return [x,y]; |
---|
| 7878 | } |
---|
| 7879 | if (x === 0) { |
---|
| 7880 | x = y + 1; |
---|
| 7881 | y = 0; |
---|
| 7882 | } else { |
---|
| 7883 | x = x - 1; |
---|
| 7884 | y = y + 1; |
---|
| 7885 | } |
---|
| 7886 | } |
---|
| 7887 | } |
---|
| 7888 | /** |
---|
| 7889 | * Computes the 2D convex hull of a set of points using Graham's scanning |
---|
| 7890 | * algorithm. The algorithm has been implemented as described in Cormen, |
---|
| 7891 | * Leiserson, and Rivest's Introduction to Algorithms. The running time of |
---|
| 7892 | * this algorithm is O(n log n), where n is the number of input points. |
---|
| 7893 | * |
---|
| 7894 | * @param vertices [[x1, y1], [x2, y2], âŠ] |
---|
| 7895 | * @returns polygon [[x1, y1], [x2, y2], âŠ] |
---|
| 7896 | */ |
---|
| 7897 | d3.geom.hull = function(vertices) { |
---|
| 7898 | if (vertices.length < 3) return []; |
---|
| 7899 | |
---|
| 7900 | var len = vertices.length, |
---|
| 7901 | plen = len - 1, |
---|
| 7902 | points = [], |
---|
| 7903 | stack = [], |
---|
| 7904 | i, j, h = 0, x1, y1, x2, y2, u, v, a, sp; |
---|
| 7905 | |
---|
| 7906 | // find the starting ref point: leftmost point with the minimum y coord |
---|
| 7907 | for (i=1; i<len; ++i) { |
---|
| 7908 | if (vertices[i][1] < vertices[h][1]) { |
---|
| 7909 | h = i; |
---|
| 7910 | } else if (vertices[i][1] == vertices[h][1]) { |
---|
| 7911 | h = (vertices[i][0] < vertices[h][0] ? i : h); |
---|
| 7912 | } |
---|
| 7913 | } |
---|
| 7914 | |
---|
| 7915 | // calculate polar angles from ref point and sort |
---|
| 7916 | for (i=0; i<len; ++i) { |
---|
| 7917 | if (i === h) continue; |
---|
| 7918 | y1 = vertices[i][1] - vertices[h][1]; |
---|
| 7919 | x1 = vertices[i][0] - vertices[h][0]; |
---|
| 7920 | points.push({angle: Math.atan2(y1, x1), index: i}); |
---|
| 7921 | } |
---|
| 7922 | points.sort(function(a, b) { return a.angle - b.angle; }); |
---|
| 7923 | |
---|
| 7924 | // toss out duplicate angles |
---|
| 7925 | a = points[0].angle; |
---|
| 7926 | v = points[0].index; |
---|
| 7927 | u = 0; |
---|
| 7928 | for (i=1; i<plen; ++i) { |
---|
| 7929 | j = points[i].index; |
---|
| 7930 | if (a == points[i].angle) { |
---|
| 7931 | // keep angle for point most distant from the reference |
---|
| 7932 | x1 = vertices[v][0] - vertices[h][0]; |
---|
| 7933 | y1 = vertices[v][1] - vertices[h][1]; |
---|
| 7934 | x2 = vertices[j][0] - vertices[h][0]; |
---|
| 7935 | y2 = vertices[j][1] - vertices[h][1]; |
---|
| 7936 | if ((x1*x1 + y1*y1) >= (x2*x2 + y2*y2)) { |
---|
| 7937 | points[i].index = -1; |
---|
| 7938 | } else { |
---|
| 7939 | points[u].index = -1; |
---|
| 7940 | a = points[i].angle; |
---|
| 7941 | u = i; |
---|
| 7942 | v = j; |
---|
| 7943 | } |
---|
| 7944 | } else { |
---|
| 7945 | a = points[i].angle; |
---|
| 7946 | u = i; |
---|
| 7947 | v = j; |
---|
| 7948 | } |
---|
| 7949 | } |
---|
| 7950 | |
---|
| 7951 | // initialize the stack |
---|
| 7952 | stack.push(h); |
---|
| 7953 | for (i=0, j=0; i<2; ++j) { |
---|
| 7954 | if (points[j].index !== -1) { |
---|
| 7955 | stack.push(points[j].index); |
---|
| 7956 | i++; |
---|
| 7957 | } |
---|
| 7958 | } |
---|
| 7959 | sp = stack.length; |
---|
| 7960 | |
---|
| 7961 | // do graham's scan |
---|
| 7962 | for (; j<plen; ++j) { |
---|
| 7963 | if (points[j].index === -1) continue; // skip tossed out points |
---|
| 7964 | while (!d3_geom_hullCCW(stack[sp-2], stack[sp-1], points[j].index, vertices)) { |
---|
| 7965 | --sp; |
---|
| 7966 | } |
---|
| 7967 | stack[sp++] = points[j].index; |
---|
| 7968 | } |
---|
| 7969 | |
---|
| 7970 | // construct the hull |
---|
| 7971 | var poly = []; |
---|
| 7972 | for (i=0; i<sp; ++i) { |
---|
| 7973 | poly.push(vertices[stack[i]]); |
---|
| 7974 | } |
---|
| 7975 | return poly; |
---|
| 7976 | } |
---|
| 7977 | |
---|
| 7978 | // are three points in counter-clockwise order? |
---|
| 7979 | function d3_geom_hullCCW(i1, i2, i3, v) { |
---|
| 7980 | var t, a, b, c, d, e, f; |
---|
| 7981 | t = v[i1]; a = t[0]; b = t[1]; |
---|
| 7982 | t = v[i2]; c = t[0]; d = t[1]; |
---|
| 7983 | t = v[i3]; e = t[0]; f = t[1]; |
---|
| 7984 | return ((f-b)*(c-a) - (d-b)*(e-a)) > 0; |
---|
| 7985 | } |
---|
| 7986 | // Note: requires coordinates to be counterclockwise and convex! |
---|
| 7987 | d3.geom.polygon = function(coordinates) { |
---|
| 7988 | |
---|
| 7989 | coordinates.area = function() { |
---|
| 7990 | var i = 0, |
---|
| 7991 | n = coordinates.length, |
---|
| 7992 | a = coordinates[n - 1][0] * coordinates[0][1], |
---|
| 7993 | b = coordinates[n - 1][1] * coordinates[0][0]; |
---|
| 7994 | while (++i < n) { |
---|
| 7995 | a += coordinates[i - 1][0] * coordinates[i][1]; |
---|
| 7996 | b += coordinates[i - 1][1] * coordinates[i][0]; |
---|
| 7997 | } |
---|
| 7998 | return (b - a) * .5; |
---|
| 7999 | }; |
---|
| 8000 | |
---|
| 8001 | coordinates.centroid = function(k) { |
---|
| 8002 | var i = -1, |
---|
| 8003 | n = coordinates.length, |
---|
| 8004 | x = 0, |
---|
| 8005 | y = 0, |
---|
| 8006 | a, |
---|
| 8007 | b = coordinates[n - 1], |
---|
| 8008 | c; |
---|
| 8009 | if (!arguments.length) k = -1 / (6 * coordinates.area()); |
---|
| 8010 | while (++i < n) { |
---|
| 8011 | a = b; |
---|
| 8012 | b = coordinates[i]; |
---|
| 8013 | c = a[0] * b[1] - b[0] * a[1]; |
---|
| 8014 | x += (a[0] + b[0]) * c; |
---|
| 8015 | y += (a[1] + b[1]) * c; |
---|
| 8016 | } |
---|
| 8017 | return [x * k, y * k]; |
---|
| 8018 | }; |
---|
| 8019 | |
---|
| 8020 | // The Sutherland-Hodgman clipping algorithm. |
---|
| 8021 | coordinates.clip = function(subject) { |
---|
| 8022 | var input, |
---|
| 8023 | i = -1, |
---|
| 8024 | n = coordinates.length, |
---|
| 8025 | j, |
---|
| 8026 | m, |
---|
| 8027 | a = coordinates[n - 1], |
---|
| 8028 | b, |
---|
| 8029 | c, |
---|
| 8030 | d; |
---|
| 8031 | while (++i < n) { |
---|
| 8032 | input = subject.slice(); |
---|
| 8033 | subject.length = 0; |
---|
| 8034 | b = coordinates[i]; |
---|
| 8035 | c = input[(m = input.length) - 1]; |
---|
| 8036 | j = -1; |
---|
| 8037 | while (++j < m) { |
---|
| 8038 | d = input[j]; |
---|
| 8039 | if (d3_geom_polygonInside(d, a, b)) { |
---|
| 8040 | if (!d3_geom_polygonInside(c, a, b)) { |
---|
| 8041 | subject.push(d3_geom_polygonIntersect(c, d, a, b)); |
---|
| 8042 | } |
---|
| 8043 | subject.push(d); |
---|
| 8044 | } else if (d3_geom_polygonInside(c, a, b)) { |
---|
| 8045 | subject.push(d3_geom_polygonIntersect(c, d, a, b)); |
---|
| 8046 | } |
---|
| 8047 | c = d; |
---|
| 8048 | } |
---|
| 8049 | a = b; |
---|
| 8050 | } |
---|
| 8051 | return subject; |
---|
| 8052 | }; |
---|
| 8053 | |
---|
| 8054 | return coordinates; |
---|
| 8055 | }; |
---|
| 8056 | |
---|
| 8057 | function d3_geom_polygonInside(p, a, b) { |
---|
| 8058 | return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]); |
---|
| 8059 | } |
---|
| 8060 | |
---|
| 8061 | // Intersect two infinite lines cd and ab. |
---|
| 8062 | function d3_geom_polygonIntersect(c, d, a, b) { |
---|
| 8063 | var x1 = c[0], x2 = d[0], x3 = a[0], x4 = b[0], |
---|
| 8064 | y1 = c[1], y2 = d[1], y3 = a[1], y4 = b[1], |
---|
| 8065 | x13 = x1 - x3, |
---|
| 8066 | x21 = x2 - x1, |
---|
| 8067 | x43 = x4 - x3, |
---|
| 8068 | y13 = y1 - y3, |
---|
| 8069 | y21 = y2 - y1, |
---|
| 8070 | y43 = y4 - y3, |
---|
| 8071 | ua = (x43 * y13 - y43 * x13) / (y43 * x21 - x43 * y21); |
---|
| 8072 | return [x1 + ua * x21, y1 + ua * y21]; |
---|
| 8073 | } |
---|
| 8074 | // Adapted from Nicolas Garcia Belmonte's JIT implementation: |
---|
| 8075 | // http://blog.thejit.org/2010/02/12/voronoi-tessellation/ |
---|
| 8076 | // http://blog.thejit.org/assets/voronoijs/voronoi.js |
---|
| 8077 | // See lib/jit/LICENSE for details. |
---|
| 8078 | |
---|
| 8079 | // Notes: |
---|
| 8080 | // |
---|
| 8081 | // This implementation does not clip the returned polygons, so if you want to |
---|
| 8082 | // clip them to a particular shape you will need to do that either in SVG or by |
---|
| 8083 | // post-processing with d3.geom.polygon's clip method. |
---|
| 8084 | // |
---|
| 8085 | // If any vertices are coincident or have NaN positions, the behavior of this |
---|
| 8086 | // method is undefined. Most likely invalid polygons will be returned. You |
---|
| 8087 | // should filter invalid points, and consolidate coincident points, before |
---|
| 8088 | // computing the tessellation. |
---|
| 8089 | |
---|
| 8090 | /** |
---|
| 8091 | * @param vertices [[x1, y1], [x2, y2], âŠ] |
---|
| 8092 | * @returns polygons [[[x1, y1], [x2, y2], âŠ], âŠ] |
---|
| 8093 | */ |
---|
| 8094 | d3.geom.voronoi = function(vertices) { |
---|
| 8095 | var polygons = vertices.map(function() { return []; }); |
---|
| 8096 | |
---|
| 8097 | d3_voronoi_tessellate(vertices, function(e) { |
---|
| 8098 | var s1, |
---|
| 8099 | s2, |
---|
| 8100 | x1, |
---|
| 8101 | x2, |
---|
| 8102 | y1, |
---|
| 8103 | y2; |
---|
| 8104 | if (e.a === 1 && e.b >= 0) { |
---|
| 8105 | s1 = e.ep.r; |
---|
| 8106 | s2 = e.ep.l; |
---|
| 8107 | } else { |
---|
| 8108 | s1 = e.ep.l; |
---|
| 8109 | s2 = e.ep.r; |
---|
| 8110 | } |
---|
| 8111 | if (e.a === 1) { |
---|
| 8112 | y1 = s1 ? s1.y : -1e6; |
---|
| 8113 | x1 = e.c - e.b * y1; |
---|
| 8114 | y2 = s2 ? s2.y : 1e6; |
---|
| 8115 | x2 = e.c - e.b * y2; |
---|
| 8116 | } else { |
---|
| 8117 | x1 = s1 ? s1.x : -1e6; |
---|
| 8118 | y1 = e.c - e.a * x1; |
---|
| 8119 | x2 = s2 ? s2.x : 1e6; |
---|
| 8120 | y2 = e.c - e.a * x2; |
---|
| 8121 | } |
---|
| 8122 | var v1 = [x1, y1], |
---|
| 8123 | v2 = [x2, y2]; |
---|
| 8124 | polygons[e.region.l.index].push(v1, v2); |
---|
| 8125 | polygons[e.region.r.index].push(v1, v2); |
---|
| 8126 | }); |
---|
| 8127 | |
---|
| 8128 | // Reconnect the polygon segments into counterclockwise loops. |
---|
| 8129 | return polygons.map(function(polygon, i) { |
---|
| 8130 | var cx = vertices[i][0], |
---|
| 8131 | cy = vertices[i][1]; |
---|
| 8132 | polygon.forEach(function(v) { |
---|
| 8133 | v.angle = Math.atan2(v[0] - cx, v[1] - cy); |
---|
| 8134 | }); |
---|
| 8135 | return polygon.sort(function(a, b) { |
---|
| 8136 | return a.angle - b.angle; |
---|
| 8137 | }).filter(function(d, i) { |
---|
| 8138 | return !i || (d.angle - polygon[i - 1].angle > 1e-10); |
---|
| 8139 | }); |
---|
| 8140 | }); |
---|
| 8141 | }; |
---|
| 8142 | |
---|
| 8143 | var d3_voronoi_opposite = {"l": "r", "r": "l"}; |
---|
| 8144 | |
---|
| 8145 | function d3_voronoi_tessellate(vertices, callback) { |
---|
| 8146 | |
---|
| 8147 | var Sites = { |
---|
| 8148 | list: vertices |
---|
| 8149 | .map(function(v, i) { |
---|
| 8150 | return { |
---|
| 8151 | index: i, |
---|
| 8152 | x: v[0], |
---|
| 8153 | y: v[1] |
---|
| 8154 | }; |
---|
| 8155 | }) |
---|
| 8156 | .sort(function(a, b) { |
---|
| 8157 | return a.y < b.y ? -1 |
---|
| 8158 | : a.y > b.y ? 1 |
---|
| 8159 | : a.x < b.x ? -1 |
---|
| 8160 | : a.x > b.x ? 1 |
---|
| 8161 | : 0; |
---|
| 8162 | }), |
---|
| 8163 | bottomSite: null |
---|
| 8164 | }; |
---|
| 8165 | |
---|
| 8166 | var EdgeList = { |
---|
| 8167 | list: [], |
---|
| 8168 | leftEnd: null, |
---|
| 8169 | rightEnd: null, |
---|
| 8170 | |
---|
| 8171 | init: function() { |
---|
| 8172 | EdgeList.leftEnd = EdgeList.createHalfEdge(null, "l"); |
---|
| 8173 | EdgeList.rightEnd = EdgeList.createHalfEdge(null, "l"); |
---|
| 8174 | EdgeList.leftEnd.r = EdgeList.rightEnd; |
---|
| 8175 | EdgeList.rightEnd.l = EdgeList.leftEnd; |
---|
| 8176 | EdgeList.list.unshift(EdgeList.leftEnd, EdgeList.rightEnd); |
---|
| 8177 | }, |
---|
| 8178 | |
---|
| 8179 | createHalfEdge: function(edge, side) { |
---|
| 8180 | return { |
---|
| 8181 | edge: edge, |
---|
| 8182 | side: side, |
---|
| 8183 | vertex: null, |
---|
| 8184 | "l": null, |
---|
| 8185 | "r": null |
---|
| 8186 | }; |
---|
| 8187 | }, |
---|
| 8188 | |
---|
| 8189 | insert: function(lb, he) { |
---|
| 8190 | he.l = lb; |
---|
| 8191 | he.r = lb.r; |
---|
| 8192 | lb.r.l = he; |
---|
| 8193 | lb.r = he; |
---|
| 8194 | }, |
---|
| 8195 | |
---|
| 8196 | leftBound: function(p) { |
---|
| 8197 | var he = EdgeList.leftEnd; |
---|
| 8198 | do { |
---|
| 8199 | he = he.r; |
---|
| 8200 | } while (he != EdgeList.rightEnd && Geom.rightOf(he, p)); |
---|
| 8201 | he = he.l; |
---|
| 8202 | return he; |
---|
| 8203 | }, |
---|
| 8204 | |
---|
| 8205 | del: function(he) { |
---|
| 8206 | he.l.r = he.r; |
---|
| 8207 | he.r.l = he.l; |
---|
| 8208 | he.edge = null; |
---|
| 8209 | }, |
---|
| 8210 | |
---|
| 8211 | right: function(he) { |
---|
| 8212 | return he.r; |
---|
| 8213 | }, |
---|
| 8214 | |
---|
| 8215 | left: function(he) { |
---|
| 8216 | return he.l; |
---|
| 8217 | }, |
---|
| 8218 | |
---|
| 8219 | leftRegion: function(he) { |
---|
| 8220 | return he.edge == null |
---|
| 8221 | ? Sites.bottomSite |
---|
| 8222 | : he.edge.region[he.side]; |
---|
| 8223 | }, |
---|
| 8224 | |
---|
| 8225 | rightRegion: function(he) { |
---|
| 8226 | return he.edge == null |
---|
| 8227 | ? Sites.bottomSite |
---|
| 8228 | : he.edge.region[d3_voronoi_opposite[he.side]]; |
---|
| 8229 | } |
---|
| 8230 | }; |
---|
| 8231 | |
---|
| 8232 | var Geom = { |
---|
| 8233 | |
---|
| 8234 | bisect: function(s1, s2) { |
---|
| 8235 | var newEdge = { |
---|
| 8236 | region: {"l": s1, "r": s2}, |
---|
| 8237 | ep: {"l": null, "r": null} |
---|
| 8238 | }; |
---|
| 8239 | |
---|
| 8240 | var dx = s2.x - s1.x, |
---|
| 8241 | dy = s2.y - s1.y, |
---|
| 8242 | adx = dx > 0 ? dx : -dx, |
---|
| 8243 | ady = dy > 0 ? dy : -dy; |
---|
| 8244 | |
---|
| 8245 | newEdge.c = s1.x * dx + s1.y * dy |
---|
| 8246 | + (dx * dx + dy * dy) * .5; |
---|
| 8247 | |
---|
| 8248 | if (adx > ady) { |
---|
| 8249 | newEdge.a = 1; |
---|
| 8250 | newEdge.b = dy / dx; |
---|
| 8251 | newEdge.c /= dx; |
---|
| 8252 | } else { |
---|
| 8253 | newEdge.b = 1; |
---|
| 8254 | newEdge.a = dx / dy; |
---|
| 8255 | newEdge.c /= dy; |
---|
| 8256 | } |
---|
| 8257 | |
---|
| 8258 | return newEdge; |
---|
| 8259 | }, |
---|
| 8260 | |
---|
| 8261 | intersect: function(el1, el2) { |
---|
| 8262 | var e1 = el1.edge, |
---|
| 8263 | e2 = el2.edge; |
---|
| 8264 | if (!e1 || !e2 || (e1.region.r == e2.region.r)) { |
---|
| 8265 | return null; |
---|
| 8266 | } |
---|
| 8267 | var d = (e1.a * e2.b) - (e1.b * e2.a); |
---|
| 8268 | if (Math.abs(d) < 1e-10) { |
---|
| 8269 | return null; |
---|
| 8270 | } |
---|
| 8271 | var xint = (e1.c * e2.b - e2.c * e1.b) / d, |
---|
| 8272 | yint = (e2.c * e1.a - e1.c * e2.a) / d, |
---|
| 8273 | e1r = e1.region.r, |
---|
| 8274 | e2r = e2.region.r, |
---|
| 8275 | el, |
---|
| 8276 | e; |
---|
| 8277 | if ((e1r.y < e2r.y) || |
---|
| 8278 | (e1r.y == e2r.y && e1r.x < e2r.x)) { |
---|
| 8279 | el = el1; |
---|
| 8280 | e = e1; |
---|
| 8281 | } else { |
---|
| 8282 | el = el2; |
---|
| 8283 | e = e2; |
---|
| 8284 | } |
---|
| 8285 | var rightOfSite = (xint >= e.region.r.x); |
---|
| 8286 | if ((rightOfSite && (el.side === "l")) || |
---|
| 8287 | (!rightOfSite && (el.side === "r"))) { |
---|
| 8288 | return null; |
---|
| 8289 | } |
---|
| 8290 | return { |
---|
| 8291 | x: xint, |
---|
| 8292 | y: yint |
---|
| 8293 | }; |
---|
| 8294 | }, |
---|
| 8295 | |
---|
| 8296 | rightOf: function(he, p) { |
---|
| 8297 | var e = he.edge, |
---|
| 8298 | topsite = e.region.r, |
---|
| 8299 | rightOfSite = (p.x > topsite.x); |
---|
| 8300 | |
---|
| 8301 | if (rightOfSite && (he.side === "l")) { |
---|
| 8302 | return 1; |
---|
| 8303 | } |
---|
| 8304 | if (!rightOfSite && (he.side === "r")) { |
---|
| 8305 | return 0; |
---|
| 8306 | } |
---|
| 8307 | if (e.a === 1) { |
---|
| 8308 | var dyp = p.y - topsite.y, |
---|
| 8309 | dxp = p.x - topsite.x, |
---|
| 8310 | fast = 0, |
---|
| 8311 | above = 0; |
---|
| 8312 | |
---|
| 8313 | if ((!rightOfSite && (e.b < 0)) || |
---|
| 8314 | (rightOfSite && (e.b >= 0))) { |
---|
| 8315 | above = fast = (dyp >= e.b * dxp); |
---|
| 8316 | } else { |
---|
| 8317 | above = ((p.x + p.y * e.b) > e.c); |
---|
| 8318 | if (e.b < 0) { |
---|
| 8319 | above = !above; |
---|
| 8320 | } |
---|
| 8321 | if (!above) { |
---|
| 8322 | fast = 1; |
---|
| 8323 | } |
---|
| 8324 | } |
---|
| 8325 | if (!fast) { |
---|
| 8326 | var dxs = topsite.x - e.region.l.x; |
---|
| 8327 | above = (e.b * (dxp * dxp - dyp * dyp)) < |
---|
| 8328 | (dxs * dyp * (1 + 2 * dxp / dxs + e.b * e.b)); |
---|
| 8329 | |
---|
| 8330 | if (e.b < 0) { |
---|
| 8331 | above = !above; |
---|
| 8332 | } |
---|
| 8333 | } |
---|
| 8334 | } else /* e.b == 1 */ { |
---|
| 8335 | var yl = e.c - e.a * p.x, |
---|
| 8336 | t1 = p.y - yl, |
---|
| 8337 | t2 = p.x - topsite.x, |
---|
| 8338 | t3 = yl - topsite.y; |
---|
| 8339 | |
---|
| 8340 | above = (t1 * t1) > (t2 * t2 + t3 * t3); |
---|
| 8341 | } |
---|
| 8342 | return he.side === "l" ? above : !above; |
---|
| 8343 | }, |
---|
| 8344 | |
---|
| 8345 | endPoint: function(edge, side, site) { |
---|
| 8346 | edge.ep[side] = site; |
---|
| 8347 | if (!edge.ep[d3_voronoi_opposite[side]]) return; |
---|
| 8348 | callback(edge); |
---|
| 8349 | }, |
---|
| 8350 | |
---|
| 8351 | distance: function(s, t) { |
---|
| 8352 | var dx = s.x - t.x, |
---|
| 8353 | dy = s.y - t.y; |
---|
| 8354 | return Math.sqrt(dx * dx + dy * dy); |
---|
| 8355 | } |
---|
| 8356 | }; |
---|
| 8357 | |
---|
| 8358 | var EventQueue = { |
---|
| 8359 | list: [], |
---|
| 8360 | |
---|
| 8361 | insert: function(he, site, offset) { |
---|
| 8362 | he.vertex = site; |
---|
| 8363 | he.ystar = site.y + offset; |
---|
| 8364 | for (var i=0, list=EventQueue.list, l=list.length; i<l; i++) { |
---|
| 8365 | var next = list[i]; |
---|
| 8366 | if (he.ystar > next.ystar || |
---|
| 8367 | (he.ystar == next.ystar && |
---|
| 8368 | site.x > next.vertex.x)) { |
---|
| 8369 | continue; |
---|
| 8370 | } else { |
---|
| 8371 | break; |
---|
| 8372 | } |
---|
| 8373 | } |
---|
| 8374 | list.splice(i, 0, he); |
---|
| 8375 | }, |
---|
| 8376 | |
---|
| 8377 | del: function(he) { |
---|
| 8378 | for (var i=0, ls=EventQueue.list, l=ls.length; i<l && (ls[i] != he); ++i) {} |
---|
| 8379 | ls.splice(i, 1); |
---|
| 8380 | }, |
---|
| 8381 | |
---|
| 8382 | empty: function() { return EventQueue.list.length === 0; }, |
---|
| 8383 | |
---|
| 8384 | nextEvent: function(he) { |
---|
| 8385 | for (var i=0, ls=EventQueue.list, l=ls.length; i<l; ++i) { |
---|
| 8386 | if (ls[i] == he) return ls[i+1]; |
---|
| 8387 | } |
---|
| 8388 | return null; |
---|
| 8389 | }, |
---|
| 8390 | |
---|
| 8391 | min: function() { |
---|
| 8392 | var elem = EventQueue.list[0]; |
---|
| 8393 | return { |
---|
| 8394 | x: elem.vertex.x, |
---|
| 8395 | y: elem.ystar |
---|
| 8396 | }; |
---|
| 8397 | }, |
---|
| 8398 | |
---|
| 8399 | extractMin: function() { |
---|
| 8400 | return EventQueue.list.shift(); |
---|
| 8401 | } |
---|
| 8402 | }; |
---|
| 8403 | |
---|
| 8404 | EdgeList.init(); |
---|
| 8405 | Sites.bottomSite = Sites.list.shift(); |
---|
| 8406 | |
---|
| 8407 | var newSite = Sites.list.shift(), newIntStar; |
---|
| 8408 | var lbnd, rbnd, llbnd, rrbnd, bisector; |
---|
| 8409 | var bot, top, temp, p, v; |
---|
| 8410 | var e, pm; |
---|
| 8411 | |
---|
| 8412 | while (true) { |
---|
| 8413 | if (!EventQueue.empty()) { |
---|
| 8414 | newIntStar = EventQueue.min(); |
---|
| 8415 | } |
---|
| 8416 | if (newSite && (EventQueue.empty() |
---|
| 8417 | || newSite.y < newIntStar.y |
---|
| 8418 | || (newSite.y == newIntStar.y |
---|
| 8419 | && newSite.x < newIntStar.x))) { //new site is smallest |
---|
| 8420 | lbnd = EdgeList.leftBound(newSite); |
---|
| 8421 | rbnd = EdgeList.right(lbnd); |
---|
| 8422 | bot = EdgeList.rightRegion(lbnd); |
---|
| 8423 | e = Geom.bisect(bot, newSite); |
---|
| 8424 | bisector = EdgeList.createHalfEdge(e, "l"); |
---|
| 8425 | EdgeList.insert(lbnd, bisector); |
---|
| 8426 | p = Geom.intersect(lbnd, bisector); |
---|
| 8427 | if (p) { |
---|
| 8428 | EventQueue.del(lbnd); |
---|
| 8429 | EventQueue.insert(lbnd, p, Geom.distance(p, newSite)); |
---|
| 8430 | } |
---|
| 8431 | lbnd = bisector; |
---|
| 8432 | bisector = EdgeList.createHalfEdge(e, "r"); |
---|
| 8433 | EdgeList.insert(lbnd, bisector); |
---|
| 8434 | p = Geom.intersect(bisector, rbnd); |
---|
| 8435 | if (p) { |
---|
| 8436 | EventQueue.insert(bisector, p, Geom.distance(p, newSite)); |
---|
| 8437 | } |
---|
| 8438 | newSite = Sites.list.shift(); |
---|
| 8439 | } else if (!EventQueue.empty()) { //intersection is smallest |
---|
| 8440 | lbnd = EventQueue.extractMin(); |
---|
| 8441 | llbnd = EdgeList.left(lbnd); |
---|
| 8442 | rbnd = EdgeList.right(lbnd); |
---|
| 8443 | rrbnd = EdgeList.right(rbnd); |
---|
| 8444 | bot = EdgeList.leftRegion(lbnd); |
---|
| 8445 | top = EdgeList.rightRegion(rbnd); |
---|
| 8446 | v = lbnd.vertex; |
---|
| 8447 | Geom.endPoint(lbnd.edge, lbnd.side, v); |
---|
| 8448 | Geom.endPoint(rbnd.edge, rbnd.side, v); |
---|
| 8449 | EdgeList.del(lbnd); |
---|
| 8450 | EventQueue.del(rbnd); |
---|
| 8451 | EdgeList.del(rbnd); |
---|
| 8452 | pm = "l"; |
---|
| 8453 | if (bot.y > top.y) { |
---|
| 8454 | temp = bot; |
---|
| 8455 | bot = top; |
---|
| 8456 | top = temp; |
---|
| 8457 | pm = "r"; |
---|
| 8458 | } |
---|
| 8459 | e = Geom.bisect(bot, top); |
---|
| 8460 | bisector = EdgeList.createHalfEdge(e, pm); |
---|
| 8461 | EdgeList.insert(llbnd, bisector); |
---|
| 8462 | Geom.endPoint(e, d3_voronoi_opposite[pm], v); |
---|
| 8463 | p = Geom.intersect(llbnd, bisector); |
---|
| 8464 | if (p) { |
---|
| 8465 | EventQueue.del(llbnd); |
---|
| 8466 | EventQueue.insert(llbnd, p, Geom.distance(p, bot)); |
---|
| 8467 | } |
---|
| 8468 | p = Geom.intersect(bisector, rrbnd); |
---|
| 8469 | if (p) { |
---|
| 8470 | EventQueue.insert(bisector, p, Geom.distance(p, bot)); |
---|
| 8471 | } |
---|
| 8472 | } else { |
---|
| 8473 | break; |
---|
| 8474 | } |
---|
| 8475 | }//end while |
---|
| 8476 | |
---|
| 8477 | for (lbnd = EdgeList.right(EdgeList.leftEnd); |
---|
| 8478 | lbnd != EdgeList.rightEnd; |
---|
| 8479 | lbnd = EdgeList.right(lbnd)) { |
---|
| 8480 | callback(lbnd.edge); |
---|
| 8481 | } |
---|
| 8482 | } |
---|
| 8483 | /** |
---|
| 8484 | * @param vertices [[x1, y1], [x2, y2], âŠ] |
---|
| 8485 | * @returns triangles [[[x1, y1], [x2, y2], [x3, y3]], âŠ] |
---|
| 8486 | */ |
---|
| 8487 | d3.geom.delaunay = function(vertices) { |
---|
| 8488 | var edges = vertices.map(function() { return []; }), |
---|
| 8489 | triangles = []; |
---|
| 8490 | |
---|
| 8491 | // Use the Voronoi tessellation to determine Delaunay edges. |
---|
| 8492 | d3_voronoi_tessellate(vertices, function(e) { |
---|
| 8493 | edges[e.region.l.index].push(vertices[e.region.r.index]); |
---|
| 8494 | }); |
---|
| 8495 | |
---|
| 8496 | // Reconnect the edges into counterclockwise triangles. |
---|
| 8497 | edges.forEach(function(edge, i) { |
---|
| 8498 | var v = vertices[i], |
---|
| 8499 | cx = v[0], |
---|
| 8500 | cy = v[1]; |
---|
| 8501 | edge.forEach(function(v) { |
---|
| 8502 | v.angle = Math.atan2(v[0] - cx, v[1] - cy); |
---|
| 8503 | }); |
---|
| 8504 | edge.sort(function(a, b) { |
---|
| 8505 | return a.angle - b.angle; |
---|
| 8506 | }); |
---|
| 8507 | for (var j = 0, m = edge.length - 1; j < m; j++) { |
---|
| 8508 | triangles.push([v, edge[j], edge[j + 1]]); |
---|
| 8509 | } |
---|
| 8510 | }); |
---|
| 8511 | |
---|
| 8512 | return triangles; |
---|
| 8513 | }; |
---|
| 8514 | // Constructs a new quadtree for the specified array of points. A quadtree is a |
---|
| 8515 | // two-dimensional recursive spatial subdivision. This implementation uses |
---|
| 8516 | // square partitions, dividing each square into four equally-sized squares. Each |
---|
| 8517 | // point exists in a unique node; if multiple points are in the same position, |
---|
| 8518 | // some points may be stored on internal nodes rather than leaf nodes. Quadtrees |
---|
| 8519 | // can be used to accelerate various spatial operations, such as the Barnes-Hut |
---|
| 8520 | // approximation for computing n-body forces, or collision detection. |
---|
| 8521 | d3.geom.quadtree = function(points, x1, y1, x2, y2) { |
---|
| 8522 | var p, |
---|
| 8523 | i = -1, |
---|
| 8524 | n = points.length; |
---|
| 8525 | |
---|
| 8526 | // Type conversion for deprecated API. |
---|
| 8527 | if (n && isNaN(points[0].x)) points = points.map(d3_geom_quadtreePoint); |
---|
| 8528 | |
---|
| 8529 | // Allow bounds to be specified explicitly. |
---|
| 8530 | if (arguments.length < 5) { |
---|
| 8531 | if (arguments.length === 3) { |
---|
| 8532 | y2 = x2 = y1; |
---|
| 8533 | y1 = x1; |
---|
| 8534 | } else { |
---|
| 8535 | x1 = y1 = Infinity; |
---|
| 8536 | x2 = y2 = -Infinity; |
---|
| 8537 | |
---|
| 8538 | // Compute bounds. |
---|
| 8539 | while (++i < n) { |
---|
| 8540 | p = points[i]; |
---|
| 8541 | if (p.x < x1) x1 = p.x; |
---|
| 8542 | if (p.y < y1) y1 = p.y; |
---|
| 8543 | if (p.x > x2) x2 = p.x; |
---|
| 8544 | if (p.y > y2) y2 = p.y; |
---|
| 8545 | } |
---|
| 8546 | |
---|
| 8547 | // Squarify the bounds. |
---|
| 8548 | var dx = x2 - x1, |
---|
| 8549 | dy = y2 - y1; |
---|
| 8550 | if (dx > dy) y2 = y1 + dx; |
---|
| 8551 | else x2 = x1 + dy; |
---|
| 8552 | } |
---|
| 8553 | } |
---|
| 8554 | |
---|
| 8555 | // Recursively inserts the specified point p at the node n or one of its |
---|
| 8556 | // descendants. The bounds are defined by [x1, x2] and [y1, y2]. |
---|
| 8557 | function insert(n, p, x1, y1, x2, y2) { |
---|
| 8558 | if (isNaN(p.x) || isNaN(p.y)) return; // ignore invalid points |
---|
| 8559 | if (n.leaf) { |
---|
| 8560 | var v = n.point; |
---|
| 8561 | if (v) { |
---|
| 8562 | // If the point at this leaf node is at the same position as the new |
---|
| 8563 | // point we are adding, we leave the point associated with the |
---|
| 8564 | // internal node while adding the new point to a child node. This |
---|
| 8565 | // avoids infinite recursion. |
---|
| 8566 | if ((Math.abs(v.x - p.x) + Math.abs(v.y - p.y)) < .01) { |
---|
| 8567 | insertChild(n, p, x1, y1, x2, y2); |
---|
| 8568 | } else { |
---|
| 8569 | n.point = null; |
---|
| 8570 | insertChild(n, v, x1, y1, x2, y2); |
---|
| 8571 | insertChild(n, p, x1, y1, x2, y2); |
---|
| 8572 | } |
---|
| 8573 | } else { |
---|
| 8574 | n.point = p; |
---|
| 8575 | } |
---|
| 8576 | } else { |
---|
| 8577 | insertChild(n, p, x1, y1, x2, y2); |
---|
| 8578 | } |
---|
| 8579 | } |
---|
| 8580 | |
---|
| 8581 | // Recursively inserts the specified point p into a descendant of node n. The |
---|
| 8582 | // bounds are defined by [x1, x2] and [y1, y2]. |
---|
| 8583 | function insertChild(n, p, x1, y1, x2, y2) { |
---|
| 8584 | // Compute the split point, and the quadrant in which to insert p. |
---|
| 8585 | var sx = (x1 + x2) * .5, |
---|
| 8586 | sy = (y1 + y2) * .5, |
---|
| 8587 | right = p.x >= sx, |
---|
| 8588 | bottom = p.y >= sy, |
---|
| 8589 | i = (bottom << 1) + right; |
---|
| 8590 | |
---|
| 8591 | // Recursively insert into the child node. |
---|
| 8592 | n.leaf = false; |
---|
| 8593 | n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode()); |
---|
| 8594 | |
---|
| 8595 | // Update the bounds as we recurse. |
---|
| 8596 | if (right) x1 = sx; else x2 = sx; |
---|
| 8597 | if (bottom) y1 = sy; else y2 = sy; |
---|
| 8598 | insert(n, p, x1, y1, x2, y2); |
---|
| 8599 | } |
---|
| 8600 | |
---|
| 8601 | // Create the root node. |
---|
| 8602 | var root = d3_geom_quadtreeNode(); |
---|
| 8603 | |
---|
| 8604 | root.add = function(p) { |
---|
| 8605 | insert(root, p, x1, y1, x2, y2); |
---|
| 8606 | }; |
---|
| 8607 | |
---|
| 8608 | root.visit = function(f) { |
---|
| 8609 | d3_geom_quadtreeVisit(f, root, x1, y1, x2, y2); |
---|
| 8610 | }; |
---|
| 8611 | |
---|
| 8612 | // Insert all points. |
---|
| 8613 | points.forEach(root.add); |
---|
| 8614 | return root; |
---|
| 8615 | }; |
---|
| 8616 | |
---|
| 8617 | function d3_geom_quadtreeNode() { |
---|
| 8618 | return { |
---|
| 8619 | leaf: true, |
---|
| 8620 | nodes: [], |
---|
| 8621 | point: null |
---|
| 8622 | }; |
---|
| 8623 | } |
---|
| 8624 | |
---|
| 8625 | function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) { |
---|
| 8626 | if (!f(node, x1, y1, x2, y2)) { |
---|
| 8627 | var sx = (x1 + x2) * .5, |
---|
| 8628 | sy = (y1 + y2) * .5, |
---|
| 8629 | children = node.nodes; |
---|
| 8630 | if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy); |
---|
| 8631 | if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy); |
---|
| 8632 | if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2); |
---|
| 8633 | if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2); |
---|
| 8634 | } |
---|
| 8635 | } |
---|
| 8636 | |
---|
| 8637 | function d3_geom_quadtreePoint(p) { |
---|
| 8638 | return { |
---|
| 8639 | x: p[0], |
---|
| 8640 | y: p[1] |
---|
| 8641 | }; |
---|
| 8642 | } |
---|
| 8643 | d3.time = {}; |
---|
| 8644 | |
---|
| 8645 | var d3_time = Date; |
---|
| 8646 | |
---|
| 8647 | function d3_time_utc() { |
---|
| 8648 | this._ = new Date(arguments.length > 1 |
---|
| 8649 | ? Date.UTC.apply(this, arguments) |
---|
| 8650 | : arguments[0]); |
---|
| 8651 | } |
---|
| 8652 | |
---|
| 8653 | d3_time_utc.prototype = { |
---|
| 8654 | getDate: function() { return this._.getUTCDate(); }, |
---|
| 8655 | getDay: function() { return this._.getUTCDay(); }, |
---|
| 8656 | getFullYear: function() { return this._.getUTCFullYear(); }, |
---|
| 8657 | getHours: function() { return this._.getUTCHours(); }, |
---|
| 8658 | getMilliseconds: function() { return this._.getUTCMilliseconds(); }, |
---|
| 8659 | getMinutes: function() { return this._.getUTCMinutes(); }, |
---|
| 8660 | getMonth: function() { return this._.getUTCMonth(); }, |
---|
| 8661 | getSeconds: function() { return this._.getUTCSeconds(); }, |
---|
| 8662 | getTime: function() { return this._.getTime(); }, |
---|
| 8663 | getTimezoneOffset: function() { return 0; }, |
---|
| 8664 | valueOf: function() { return this._.valueOf(); }, |
---|
| 8665 | setDate: function() { d3_time_prototype.setUTCDate.apply(this._, arguments); }, |
---|
| 8666 | setDay: function() { d3_time_prototype.setUTCDay.apply(this._, arguments); }, |
---|
| 8667 | setFullYear: function() { d3_time_prototype.setUTCFullYear.apply(this._, arguments); }, |
---|
| 8668 | setHours: function() { d3_time_prototype.setUTCHours.apply(this._, arguments); }, |
---|
| 8669 | setMilliseconds: function() { d3_time_prototype.setUTCMilliseconds.apply(this._, arguments); }, |
---|
| 8670 | setMinutes: function() { d3_time_prototype.setUTCMinutes.apply(this._, arguments); }, |
---|
| 8671 | setMonth: function() { d3_time_prototype.setUTCMonth.apply(this._, arguments); }, |
---|
| 8672 | setSeconds: function() { d3_time_prototype.setUTCSeconds.apply(this._, arguments); }, |
---|
| 8673 | setTime: function() { d3_time_prototype.setTime.apply(this._, arguments); } |
---|
| 8674 | }; |
---|
| 8675 | |
---|
| 8676 | var d3_time_prototype = Date.prototype; |
---|
| 8677 | d3.time.format = function(template) { |
---|
| 8678 | var n = template.length; |
---|
| 8679 | |
---|
| 8680 | function format(date) { |
---|
| 8681 | var string = [], |
---|
| 8682 | i = -1, |
---|
| 8683 | j = 0, |
---|
| 8684 | c, |
---|
| 8685 | f; |
---|
| 8686 | while (++i < n) { |
---|
| 8687 | if (template.charCodeAt(i) == 37) { |
---|
| 8688 | string.push( |
---|
| 8689 | template.substring(j, i), |
---|
| 8690 | (f = d3_time_formats[c = template.charAt(++i)]) |
---|
| 8691 | ? f(date) : c); |
---|
| 8692 | j = i + 1; |
---|
| 8693 | } |
---|
| 8694 | } |
---|
| 8695 | string.push(template.substring(j, i)); |
---|
| 8696 | return string.join(""); |
---|
| 8697 | } |
---|
| 8698 | |
---|
| 8699 | format.parse = function(string) { |
---|
| 8700 | var d = {y: 1900, m: 0, d: 1, H: 0, M: 0, S: 0, L: 0}, |
---|
| 8701 | i = d3_time_parse(d, template, string, 0); |
---|
| 8702 | if (i != string.length) return null; |
---|
| 8703 | |
---|
| 8704 | // The am-pm flag is 0 for AM, and 1 for PM. |
---|
| 8705 | if ("p" in d) d.H = d.H % 12 + d.p * 12; |
---|
| 8706 | |
---|
| 8707 | var date = new d3_time(); |
---|
| 8708 | date.setFullYear(d.y, d.m, d.d); |
---|
| 8709 | date.setHours(d.H, d.M, d.S, d.L); |
---|
| 8710 | return date; |
---|
| 8711 | }; |
---|
| 8712 | |
---|
| 8713 | format.toString = function() { |
---|
| 8714 | return template; |
---|
| 8715 | }; |
---|
| 8716 | |
---|
| 8717 | return format; |
---|
| 8718 | }; |
---|
| 8719 | |
---|
| 8720 | function d3_time_parse(date, template, string, j) { |
---|
| 8721 | var c, |
---|
| 8722 | p, |
---|
| 8723 | i = 0, |
---|
| 8724 | n = template.length, |
---|
| 8725 | m = string.length; |
---|
| 8726 | while (i < n) { |
---|
| 8727 | if (j >= m) return -1; |
---|
| 8728 | c = template.charCodeAt(i++); |
---|
| 8729 | if (c == 37) { |
---|
| 8730 | p = d3_time_parsers[template.charAt(i++)]; |
---|
| 8731 | if (!p || ((j = p(date, string, j)) < 0)) return -1; |
---|
| 8732 | } else if (c != string.charCodeAt(j++)) { |
---|
| 8733 | return -1; |
---|
| 8734 | } |
---|
| 8735 | } |
---|
| 8736 | return j; |
---|
| 8737 | } |
---|
| 8738 | |
---|
| 8739 | var d3_time_zfill2 = d3.format("02d"), |
---|
| 8740 | d3_time_zfill3 = d3.format("03d"), |
---|
| 8741 | d3_time_zfill4 = d3.format("04d"), |
---|
| 8742 | d3_time_sfill2 = d3.format("2d"); |
---|
| 8743 | |
---|
| 8744 | var d3_time_formats = { |
---|
| 8745 | a: function(d) { return d3_time_weekdays[d.getDay()].substring(0, 3); }, |
---|
| 8746 | A: function(d) { return d3_time_weekdays[d.getDay()]; }, |
---|
| 8747 | b: function(d) { return d3_time_months[d.getMonth()].substring(0, 3); }, |
---|
| 8748 | B: function(d) { return d3_time_months[d.getMonth()]; }, |
---|
| 8749 | c: d3.time.format("%a %b %e %H:%M:%S %Y"), |
---|
| 8750 | d: function(d) { return d3_time_zfill2(d.getDate()); }, |
---|
| 8751 | e: function(d) { return d3_time_sfill2(d.getDate()); }, |
---|
| 8752 | H: function(d) { return d3_time_zfill2(d.getHours()); }, |
---|
| 8753 | I: function(d) { return d3_time_zfill2(d.getHours() % 12 || 12); }, |
---|
| 8754 | j: function(d) { return d3_time_zfill3(1 + d3.time.dayOfYear(d)); }, |
---|
| 8755 | L: function(d) { return d3_time_zfill3(d.getMilliseconds()); }, |
---|
| 8756 | m: function(d) { return d3_time_zfill2(d.getMonth() + 1); }, |
---|
| 8757 | M: function(d) { return d3_time_zfill2(d.getMinutes()); }, |
---|
| 8758 | p: function(d) { return d.getHours() >= 12 ? "PM" : "AM"; }, |
---|
| 8759 | S: function(d) { return d3_time_zfill2(d.getSeconds()); }, |
---|
| 8760 | U: function(d) { return d3_time_zfill2(d3.time.sundayOfYear(d)); }, |
---|
| 8761 | w: function(d) { return d.getDay(); }, |
---|
| 8762 | W: function(d) { return d3_time_zfill2(d3.time.mondayOfYear(d)); }, |
---|
| 8763 | x: d3.time.format("%m/%d/%y"), |
---|
| 8764 | X: d3.time.format("%H:%M:%S"), |
---|
| 8765 | y: function(d) { return d3_time_zfill2(d.getFullYear() % 100); }, |
---|
| 8766 | Y: function(d) { return d3_time_zfill4(d.getFullYear() % 10000); }, |
---|
| 8767 | Z: d3_time_zone, |
---|
| 8768 | "%": function(d) { return "%"; } |
---|
| 8769 | }; |
---|
| 8770 | |
---|
| 8771 | var d3_time_parsers = { |
---|
| 8772 | a: d3_time_parseWeekdayAbbrev, |
---|
| 8773 | A: d3_time_parseWeekday, |
---|
| 8774 | b: d3_time_parseMonthAbbrev, |
---|
| 8775 | B: d3_time_parseMonth, |
---|
| 8776 | c: d3_time_parseLocaleFull, |
---|
| 8777 | d: d3_time_parseDay, |
---|
| 8778 | e: d3_time_parseDay, |
---|
| 8779 | H: d3_time_parseHour24, |
---|
| 8780 | I: d3_time_parseHour24, |
---|
| 8781 | // j: function(d, s, i) { /*TODO day of year [001,366] */ return i; }, |
---|
| 8782 | L: d3_time_parseMilliseconds, |
---|
| 8783 | m: d3_time_parseMonthNumber, |
---|
| 8784 | M: d3_time_parseMinutes, |
---|
| 8785 | p: d3_time_parseAmPm, |
---|
| 8786 | S: d3_time_parseSeconds, |
---|
| 8787 | // U: function(d, s, i) { /*TODO week number (sunday) [00,53] */ return i; }, |
---|
| 8788 | // w: function(d, s, i) { /*TODO weekday [0,6] */ return i; }, |
---|
| 8789 | // W: function(d, s, i) { /*TODO week number (monday) [00,53] */ return i; }, |
---|
| 8790 | x: d3_time_parseLocaleDate, |
---|
| 8791 | X: d3_time_parseLocaleTime, |
---|
| 8792 | y: d3_time_parseYear, |
---|
| 8793 | Y: d3_time_parseFullYear |
---|
| 8794 | // , |
---|
| 8795 | // Z: function(d, s, i) { /*TODO time zone */ return i; }, |
---|
| 8796 | // "%": function(d, s, i) { /*TODO literal % */ return i; } |
---|
| 8797 | }; |
---|
| 8798 | |
---|
| 8799 | // Note: weekday is validated, but does not set the date. |
---|
| 8800 | function d3_time_parseWeekdayAbbrev(date, string, i) { |
---|
| 8801 | return d3_time_weekdayAbbrevRe.test(string.substring(i, i += 3)) ? i : -1; |
---|
| 8802 | } |
---|
| 8803 | |
---|
| 8804 | // Note: weekday is validated, but does not set the date. |
---|
| 8805 | function d3_time_parseWeekday(date, string, i) { |
---|
| 8806 | d3_time_weekdayRe.lastIndex = 0; |
---|
| 8807 | var n = d3_time_weekdayRe.exec(string.substring(i, i + 10)); |
---|
| 8808 | return n ? i += n[0].length : -1; |
---|
| 8809 | } |
---|
| 8810 | |
---|
| 8811 | var d3_time_weekdayAbbrevRe = /^(?:sun|mon|tue|wed|thu|fri|sat)/i, |
---|
| 8812 | d3_time_weekdayRe = /^(?:Sunday|Monday|Tuesday|Wednesday|Thursday|Friday|Saturday)/i; |
---|
| 8813 | d3_time_weekdays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]; |
---|
| 8814 | |
---|
| 8815 | function d3_time_parseMonthAbbrev(date, string, i) { |
---|
| 8816 | var n = d3_time_monthAbbrevLookup.get(string.substring(i, i += 3).toLowerCase()); |
---|
| 8817 | return n == null ? -1 : (date.m = n, i); |
---|
| 8818 | } |
---|
| 8819 | |
---|
| 8820 | var d3_time_monthAbbrevLookup = d3.map({ |
---|
| 8821 | jan: 0, |
---|
| 8822 | feb: 1, |
---|
| 8823 | mar: 2, |
---|
| 8824 | apr: 3, |
---|
| 8825 | may: 4, |
---|
| 8826 | jun: 5, |
---|
| 8827 | jul: 6, |
---|
| 8828 | aug: 7, |
---|
| 8829 | sep: 8, |
---|
| 8830 | oct: 9, |
---|
| 8831 | nov: 10, |
---|
| 8832 | dec: 11 |
---|
| 8833 | }); |
---|
| 8834 | |
---|
| 8835 | function d3_time_parseMonth(date, string, i) { |
---|
| 8836 | d3_time_monthRe.lastIndex = 0; |
---|
| 8837 | var n = d3_time_monthRe.exec(string.substring(i, i + 12)); |
---|
| 8838 | return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i += n[0].length) : -1; |
---|
| 8839 | } |
---|
| 8840 | |
---|
| 8841 | var d3_time_monthRe = /^(?:January|February|March|April|May|June|July|August|September|October|November|December)/ig; |
---|
| 8842 | |
---|
| 8843 | var d3_time_monthLookup = d3.map({ |
---|
| 8844 | january: 0, |
---|
| 8845 | february: 1, |
---|
| 8846 | march: 2, |
---|
| 8847 | april: 3, |
---|
| 8848 | may: 4, |
---|
| 8849 | june: 5, |
---|
| 8850 | july: 6, |
---|
| 8851 | august: 7, |
---|
| 8852 | september: 8, |
---|
| 8853 | october: 9, |
---|
| 8854 | november: 10, |
---|
| 8855 | december: 11 |
---|
| 8856 | }); |
---|
| 8857 | |
---|
| 8858 | var d3_time_months = [ |
---|
| 8859 | "January", |
---|
| 8860 | "February", |
---|
| 8861 | "March", |
---|
| 8862 | "April", |
---|
| 8863 | "May", |
---|
| 8864 | "June", |
---|
| 8865 | "July", |
---|
| 8866 | "August", |
---|
| 8867 | "September", |
---|
| 8868 | "October", |
---|
| 8869 | "November", |
---|
| 8870 | "December" |
---|
| 8871 | ]; |
---|
| 8872 | |
---|
| 8873 | function d3_time_parseLocaleFull(date, string, i) { |
---|
| 8874 | return d3_time_parse(date, d3_time_formats.c.toString(), string, i); |
---|
| 8875 | } |
---|
| 8876 | |
---|
| 8877 | function d3_time_parseLocaleDate(date, string, i) { |
---|
| 8878 | return d3_time_parse(date, d3_time_formats.x.toString(), string, i); |
---|
| 8879 | } |
---|
| 8880 | |
---|
| 8881 | function d3_time_parseLocaleTime(date, string, i) { |
---|
| 8882 | return d3_time_parse(date, d3_time_formats.X.toString(), string, i); |
---|
| 8883 | } |
---|
| 8884 | |
---|
| 8885 | function d3_time_parseFullYear(date, string, i) { |
---|
| 8886 | d3_time_numberRe.lastIndex = 0; |
---|
| 8887 | var n = d3_time_numberRe.exec(string.substring(i, i + 4)); |
---|
| 8888 | return n ? (date.y = +n[0], i += n[0].length) : -1; |
---|
| 8889 | } |
---|
| 8890 | |
---|
| 8891 | function d3_time_parseYear(date, string, i) { |
---|
| 8892 | d3_time_numberRe.lastIndex = 0; |
---|
| 8893 | var n = d3_time_numberRe.exec(string.substring(i, i + 2)); |
---|
| 8894 | return n ? (date.y = d3_time_century() + +n[0], i += n[0].length) : -1; |
---|
| 8895 | } |
---|
| 8896 | |
---|
| 8897 | function d3_time_century() { |
---|
| 8898 | return ~~(new Date().getFullYear() / 1000) * 1000; |
---|
| 8899 | } |
---|
| 8900 | |
---|
| 8901 | function d3_time_parseMonthNumber(date, string, i) { |
---|
| 8902 | d3_time_numberRe.lastIndex = 0; |
---|
| 8903 | var n = d3_time_numberRe.exec(string.substring(i, i + 2)); |
---|
| 8904 | return n ? (date.m = n[0] - 1, i += n[0].length) : -1; |
---|
| 8905 | } |
---|
| 8906 | |
---|
| 8907 | function d3_time_parseDay(date, string, i) { |
---|
| 8908 | d3_time_numberRe.lastIndex = 0; |
---|
| 8909 | var n = d3_time_numberRe.exec(string.substring(i, i + 2)); |
---|
| 8910 | return n ? (date.d = +n[0], i += n[0].length) : -1; |
---|
| 8911 | } |
---|
| 8912 | |
---|
| 8913 | // Note: we don't validate that the hour is in the range [0,23] or [1,12]. |
---|
| 8914 | function d3_time_parseHour24(date, string, i) { |
---|
| 8915 | d3_time_numberRe.lastIndex = 0; |
---|
| 8916 | var n = d3_time_numberRe.exec(string.substring(i, i + 2)); |
---|
| 8917 | return n ? (date.H = +n[0], i += n[0].length) : -1; |
---|
| 8918 | } |
---|
| 8919 | |
---|
| 8920 | function d3_time_parseMinutes(date, string, i) { |
---|
| 8921 | d3_time_numberRe.lastIndex = 0; |
---|
| 8922 | var n = d3_time_numberRe.exec(string.substring(i, i + 2)); |
---|
| 8923 | return n ? (date.M = +n[0], i += n[0].length) : -1; |
---|
| 8924 | } |
---|
| 8925 | |
---|
| 8926 | function d3_time_parseSeconds(date, string, i) { |
---|
| 8927 | d3_time_numberRe.lastIndex = 0; |
---|
| 8928 | var n = d3_time_numberRe.exec(string.substring(i, i + 2)); |
---|
| 8929 | return n ? (date.S = +n[0], i += n[0].length) : -1; |
---|
| 8930 | } |
---|
| 8931 | |
---|
| 8932 | function d3_time_parseMilliseconds(date, string, i) { |
---|
| 8933 | d3_time_numberRe.lastIndex = 0; |
---|
| 8934 | var n = d3_time_numberRe.exec(string.substring(i, i + 3)); |
---|
| 8935 | return n ? (date.L = +n[0], i += n[0].length) : -1; |
---|
| 8936 | } |
---|
| 8937 | |
---|
| 8938 | // Note: we don't look at the next directive. |
---|
| 8939 | var d3_time_numberRe = /\s*\d+/; |
---|
| 8940 | |
---|
| 8941 | function d3_time_parseAmPm(date, string, i) { |
---|
| 8942 | var n = d3_time_amPmLookup.get(string.substring(i, i += 2).toLowerCase()); |
---|
| 8943 | return n == null ? -1 : (date.p = n, i); |
---|
| 8944 | } |
---|
| 8945 | |
---|
| 8946 | var d3_time_amPmLookup = d3.map({ |
---|
| 8947 | am: 0, |
---|
| 8948 | pm: 1 |
---|
| 8949 | }); |
---|
| 8950 | |
---|
| 8951 | // TODO table of time zone offset names? |
---|
| 8952 | function d3_time_zone(d) { |
---|
| 8953 | var z = d.getTimezoneOffset(), |
---|
| 8954 | zs = z > 0 ? "-" : "+", |
---|
| 8955 | zh = ~~(Math.abs(z) / 60), |
---|
| 8956 | zm = Math.abs(z) % 60; |
---|
| 8957 | return zs + d3_time_zfill2(zh) + d3_time_zfill2(zm); |
---|
| 8958 | } |
---|
| 8959 | d3.time.format.utc = function(template) { |
---|
| 8960 | var local = d3.time.format(template); |
---|
| 8961 | |
---|
| 8962 | function format(date) { |
---|
| 8963 | try { |
---|
| 8964 | d3_time = d3_time_utc; |
---|
| 8965 | var utc = new d3_time(); |
---|
| 8966 | utc._ = date; |
---|
| 8967 | return local(utc); |
---|
| 8968 | } finally { |
---|
| 8969 | d3_time = Date; |
---|
| 8970 | } |
---|
| 8971 | } |
---|
| 8972 | |
---|
| 8973 | format.parse = function(string) { |
---|
| 8974 | try { |
---|
| 8975 | d3_time = d3_time_utc; |
---|
| 8976 | var date = local.parse(string); |
---|
| 8977 | return date && date._; |
---|
| 8978 | } finally { |
---|
| 8979 | d3_time = Date; |
---|
| 8980 | } |
---|
| 8981 | }; |
---|
| 8982 | |
---|
| 8983 | format.toString = local.toString; |
---|
| 8984 | |
---|
| 8985 | return format; |
---|
| 8986 | }; |
---|
| 8987 | var d3_time_formatIso = d3.time.format.utc("%Y-%m-%dT%H:%M:%S.%LZ"); |
---|
| 8988 | |
---|
| 8989 | d3.time.format.iso = Date.prototype.toISOString ? d3_time_formatIsoNative : d3_time_formatIso; |
---|
| 8990 | |
---|
| 8991 | function d3_time_formatIsoNative(date) { |
---|
| 8992 | return date.toISOString(); |
---|
| 8993 | } |
---|
| 8994 | |
---|
| 8995 | d3_time_formatIsoNative.parse = function(string) { |
---|
| 8996 | return new Date(string); |
---|
| 8997 | }; |
---|
| 8998 | |
---|
| 8999 | d3_time_formatIsoNative.toString = d3_time_formatIso.toString; |
---|
| 9000 | function d3_time_interval(local, step, number) { |
---|
| 9001 | |
---|
| 9002 | function round(date) { |
---|
| 9003 | var d0 = local(date), d1 = offset(d0, 1); |
---|
| 9004 | return date - d0 < d1 - date ? d0 : d1; |
---|
| 9005 | } |
---|
| 9006 | |
---|
| 9007 | function ceil(date) { |
---|
| 9008 | step(date = local(new d3_time(date - 1)), 1); |
---|
| 9009 | return date; |
---|
| 9010 | } |
---|
| 9011 | |
---|
| 9012 | function offset(date, k) { |
---|
| 9013 | step(date = new d3_time(+date), k); |
---|
| 9014 | return date; |
---|
| 9015 | } |
---|
| 9016 | |
---|
| 9017 | function range(t0, t1, dt) { |
---|
| 9018 | var time = ceil(t0), times = []; |
---|
| 9019 | if (dt > 1) { |
---|
| 9020 | while (time < t1) { |
---|
| 9021 | if (!(number(time) % dt)) times.push(new Date(+time)); |
---|
| 9022 | step(time, 1); |
---|
| 9023 | } |
---|
| 9024 | } else { |
---|
| 9025 | while (time < t1) times.push(new Date(+time)), step(time, 1); |
---|
| 9026 | } |
---|
| 9027 | return times; |
---|
| 9028 | } |
---|
| 9029 | |
---|
| 9030 | function range_utc(t0, t1, dt) { |
---|
| 9031 | try { |
---|
| 9032 | d3_time = d3_time_utc; |
---|
| 9033 | var utc = new d3_time_utc(); |
---|
| 9034 | utc._ = t0; |
---|
| 9035 | return range(utc, t1, dt); |
---|
| 9036 | } finally { |
---|
| 9037 | d3_time = Date; |
---|
| 9038 | } |
---|
| 9039 | } |
---|
| 9040 | |
---|
| 9041 | local.floor = local; |
---|
| 9042 | local.round = round; |
---|
| 9043 | local.ceil = ceil; |
---|
| 9044 | local.offset = offset; |
---|
| 9045 | local.range = range; |
---|
| 9046 | |
---|
| 9047 | var utc = local.utc = d3_time_interval_utc(local); |
---|
| 9048 | utc.floor = utc; |
---|
| 9049 | utc.round = d3_time_interval_utc(round); |
---|
| 9050 | utc.ceil = d3_time_interval_utc(ceil); |
---|
| 9051 | utc.offset = d3_time_interval_utc(offset); |
---|
| 9052 | utc.range = range_utc; |
---|
| 9053 | |
---|
| 9054 | return local; |
---|
| 9055 | } |
---|
| 9056 | |
---|
| 9057 | function d3_time_interval_utc(method) { |
---|
| 9058 | return function(date, k) { |
---|
| 9059 | try { |
---|
| 9060 | d3_time = d3_time_utc; |
---|
| 9061 | var utc = new d3_time_utc(); |
---|
| 9062 | utc._ = date; |
---|
| 9063 | return method(utc, k)._; |
---|
| 9064 | } finally { |
---|
| 9065 | d3_time = Date; |
---|
| 9066 | } |
---|
| 9067 | }; |
---|
| 9068 | } |
---|
| 9069 | d3.time.second = d3_time_interval(function(date) { |
---|
| 9070 | return new d3_time(Math.floor(date / 1e3) * 1e3); |
---|
| 9071 | }, function(date, offset) { |
---|
| 9072 | date.setTime(date.getTime() + Math.floor(offset) * 1e3); // DST breaks setSeconds |
---|
| 9073 | }, function(date) { |
---|
| 9074 | return date.getSeconds(); |
---|
| 9075 | }); |
---|
| 9076 | |
---|
| 9077 | d3.time.seconds = d3.time.second.range; |
---|
| 9078 | d3.time.seconds.utc = d3.time.second.utc.range; |
---|
| 9079 | d3.time.minute = d3_time_interval(function(date) { |
---|
| 9080 | return new d3_time(Math.floor(date / 6e4) * 6e4); |
---|
| 9081 | }, function(date, offset) { |
---|
| 9082 | date.setTime(date.getTime() + Math.floor(offset) * 6e4); // DST breaks setMinutes |
---|
| 9083 | }, function(date) { |
---|
| 9084 | return date.getMinutes(); |
---|
| 9085 | }); |
---|
| 9086 | |
---|
| 9087 | d3.time.minutes = d3.time.minute.range; |
---|
| 9088 | d3.time.minutes.utc = d3.time.minute.utc.range; |
---|
| 9089 | d3.time.hour = d3_time_interval(function(date) { |
---|
| 9090 | var timezone = date.getTimezoneOffset() / 60; |
---|
| 9091 | return new d3_time((Math.floor(date / 36e5 - timezone) + timezone) * 36e5); |
---|
| 9092 | }, function(date, offset) { |
---|
| 9093 | date.setTime(date.getTime() + Math.floor(offset) * 36e5); // DST breaks setHours |
---|
| 9094 | }, function(date) { |
---|
| 9095 | return date.getHours(); |
---|
| 9096 | }); |
---|
| 9097 | |
---|
| 9098 | d3.time.hours = d3.time.hour.range; |
---|
| 9099 | d3.time.hours.utc = d3.time.hour.utc.range; |
---|
| 9100 | d3.time.day = d3_time_interval(function(date) { |
---|
| 9101 | return new d3_time(date.getFullYear(), date.getMonth(), date.getDate()); |
---|
| 9102 | }, function(date, offset) { |
---|
| 9103 | date.setDate(date.getDate() + offset); |
---|
| 9104 | }, function(date) { |
---|
| 9105 | return date.getDate() - 1; |
---|
| 9106 | }); |
---|
| 9107 | |
---|
| 9108 | d3.time.days = d3.time.day.range; |
---|
| 9109 | d3.time.days.utc = d3.time.day.utc.range; |
---|
| 9110 | |
---|
| 9111 | d3.time.dayOfYear = function(date) { |
---|
| 9112 | var year = d3.time.year(date); |
---|
| 9113 | return Math.floor((date - year) / 864e5 - (date.getTimezoneOffset() - year.getTimezoneOffset()) / 1440); |
---|
| 9114 | }; |
---|
| 9115 | d3_time_weekdays.forEach(function(day, i) { |
---|
| 9116 | day = day.toLowerCase(); |
---|
| 9117 | i = 7 - i; |
---|
| 9118 | |
---|
| 9119 | var interval = d3.time[day] = d3_time_interval(function(date) { |
---|
| 9120 | (date = d3.time.day(date)).setDate(date.getDate() - (date.getDay() + i) % 7); |
---|
| 9121 | return date; |
---|
| 9122 | }, function(date, offset) { |
---|
| 9123 | date.setDate(date.getDate() + Math.floor(offset) * 7); |
---|
| 9124 | }, function(date) { |
---|
| 9125 | var day = d3.time.year(date).getDay(); |
---|
| 9126 | return Math.floor((d3.time.dayOfYear(date) + (day + i) % 7) / 7) - (day !== i); |
---|
| 9127 | }); |
---|
| 9128 | |
---|
| 9129 | d3.time[day + "s"] = interval.range; |
---|
| 9130 | d3.time[day + "s"].utc = interval.utc.range; |
---|
| 9131 | |
---|
| 9132 | d3.time[day + "OfYear"] = function(date) { |
---|
| 9133 | var day = d3.time.year(date).getDay(); |
---|
| 9134 | return Math.floor((d3.time.dayOfYear(date) + (day + i) % 7) / 7); |
---|
| 9135 | }; |
---|
| 9136 | }); |
---|
| 9137 | |
---|
| 9138 | d3.time.week = d3.time.sunday; |
---|
| 9139 | d3.time.weeks = d3.time.sunday.range; |
---|
| 9140 | d3.time.weeks.utc = d3.time.sunday.utc.range; |
---|
| 9141 | d3.time.weekOfYear = d3.time.sundayOfYear; |
---|
| 9142 | d3.time.month = d3_time_interval(function(date) { |
---|
| 9143 | return new d3_time(date.getFullYear(), date.getMonth(), 1); |
---|
| 9144 | }, function(date, offset) { |
---|
| 9145 | date.setMonth(date.getMonth() + offset); |
---|
| 9146 | }, function(date) { |
---|
| 9147 | return date.getMonth(); |
---|
| 9148 | }); |
---|
| 9149 | |
---|
| 9150 | d3.time.months = d3.time.month.range; |
---|
| 9151 | d3.time.months.utc = d3.time.month.utc.range; |
---|
| 9152 | d3.time.year = d3_time_interval(function(date) { |
---|
| 9153 | return new d3_time(date.getFullYear(), 0, 1); |
---|
| 9154 | }, function(date, offset) { |
---|
| 9155 | date.setFullYear(date.getFullYear() + offset); |
---|
| 9156 | }, function(date) { |
---|
| 9157 | return date.getFullYear(); |
---|
| 9158 | }); |
---|
| 9159 | |
---|
| 9160 | d3.time.years = d3.time.year.range; |
---|
| 9161 | d3.time.years.utc = d3.time.year.utc.range; |
---|
| 9162 | function d3_time_scale(linear, methods, format) { |
---|
| 9163 | |
---|
| 9164 | function scale(x) { |
---|
| 9165 | return linear(x); |
---|
| 9166 | } |
---|
| 9167 | |
---|
| 9168 | scale.invert = function(x) { |
---|
| 9169 | return d3_time_scaleDate(linear.invert(x)); |
---|
| 9170 | }; |
---|
| 9171 | |
---|
| 9172 | scale.domain = function(x) { |
---|
| 9173 | if (!arguments.length) return linear.domain().map(d3_time_scaleDate); |
---|
| 9174 | linear.domain(x); |
---|
| 9175 | return scale; |
---|
| 9176 | }; |
---|
| 9177 | |
---|
| 9178 | scale.nice = function(m) { |
---|
| 9179 | var extent = d3_time_scaleExtent(scale.domain()); |
---|
| 9180 | return scale.domain([m.floor(extent[0]), m.ceil(extent[1])]); |
---|
| 9181 | }; |
---|
| 9182 | |
---|
| 9183 | scale.ticks = function(m, k) { |
---|
| 9184 | var extent = d3_time_scaleExtent(scale.domain()); |
---|
| 9185 | if (typeof m !== "function") { |
---|
| 9186 | var span = extent[1] - extent[0], |
---|
| 9187 | target = span / m, |
---|
| 9188 | i = d3.bisect(d3_time_scaleSteps, target); |
---|
| 9189 | if (i == d3_time_scaleSteps.length) return methods.year(extent, m); |
---|
| 9190 | if (!i) return linear.ticks(m).map(d3_time_scaleDate); |
---|
| 9191 | if (Math.log(target / d3_time_scaleSteps[i - 1]) < Math.log(d3_time_scaleSteps[i] / target)) --i; |
---|
| 9192 | m = methods[i]; |
---|
| 9193 | k = m[1]; |
---|
| 9194 | m = m[0].range; |
---|
| 9195 | } |
---|
| 9196 | return m(extent[0], new Date(+extent[1] + 1), k); // inclusive upper bound |
---|
| 9197 | }; |
---|
| 9198 | |
---|
| 9199 | scale.tickFormat = function() { |
---|
| 9200 | return format; |
---|
| 9201 | }; |
---|
| 9202 | |
---|
| 9203 | scale.copy = function() { |
---|
| 9204 | return d3_time_scale(linear.copy(), methods, format); |
---|
| 9205 | }; |
---|
| 9206 | |
---|
| 9207 | // TOOD expose d3_scale_linear_rebind? |
---|
| 9208 | return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp"); |
---|
| 9209 | } |
---|
| 9210 | |
---|
| 9211 | // TODO expose d3_scaleExtent? |
---|
| 9212 | function d3_time_scaleExtent(domain) { |
---|
| 9213 | var start = domain[0], stop = domain[domain.length - 1]; |
---|
| 9214 | return start < stop ? [start, stop] : [stop, start]; |
---|
| 9215 | } |
---|
| 9216 | |
---|
| 9217 | function d3_time_scaleDate(t) { |
---|
| 9218 | return new Date(t); |
---|
| 9219 | } |
---|
| 9220 | |
---|
| 9221 | function d3_time_scaleFormat(formats) { |
---|
| 9222 | return function(date) { |
---|
| 9223 | var i = formats.length - 1, f = formats[i]; |
---|
| 9224 | while (!f[1](date)) f = formats[--i]; |
---|
| 9225 | return f[0](date); |
---|
| 9226 | }; |
---|
| 9227 | } |
---|
| 9228 | |
---|
| 9229 | function d3_time_scaleSetYear(y) { |
---|
| 9230 | var d = new Date(y, 0, 1); |
---|
| 9231 | d.setFullYear(y); // Y2K fail |
---|
| 9232 | return d; |
---|
| 9233 | } |
---|
| 9234 | |
---|
| 9235 | function d3_time_scaleGetYear(d) { |
---|
| 9236 | var y = d.getFullYear(), |
---|
| 9237 | d0 = d3_time_scaleSetYear(y), |
---|
| 9238 | d1 = d3_time_scaleSetYear(y + 1); |
---|
| 9239 | return y + (d - d0) / (d1 - d0); |
---|
| 9240 | } |
---|
| 9241 | |
---|
| 9242 | var d3_time_scaleSteps = [ |
---|
| 9243 | 1e3, // 1-second |
---|
| 9244 | 5e3, // 5-second |
---|
| 9245 | 15e3, // 15-second |
---|
| 9246 | 3e4, // 30-second |
---|
| 9247 | 6e4, // 1-minute |
---|
| 9248 | 3e5, // 5-minute |
---|
| 9249 | 9e5, // 15-minute |
---|
| 9250 | 18e5, // 30-minute |
---|
| 9251 | 36e5, // 1-hour |
---|
| 9252 | 108e5, // 3-hour |
---|
| 9253 | 216e5, // 6-hour |
---|
| 9254 | 432e5, // 12-hour |
---|
| 9255 | 864e5, // 1-day |
---|
| 9256 | 1728e5, // 2-day |
---|
| 9257 | 6048e5, // 1-week |
---|
| 9258 | 2592e6, // 1-month |
---|
| 9259 | 7776e6, // 3-month |
---|
| 9260 | 31536e6 // 1-year |
---|
| 9261 | ]; |
---|
| 9262 | |
---|
| 9263 | var d3_time_scaleLocalMethods = [ |
---|
| 9264 | [d3.time.second, 1], |
---|
| 9265 | [d3.time.second, 5], |
---|
| 9266 | [d3.time.second, 15], |
---|
| 9267 | [d3.time.second, 30], |
---|
| 9268 | [d3.time.minute, 1], |
---|
| 9269 | [d3.time.minute, 5], |
---|
| 9270 | [d3.time.minute, 15], |
---|
| 9271 | [d3.time.minute, 30], |
---|
| 9272 | [d3.time.hour, 1], |
---|
| 9273 | [d3.time.hour, 3], |
---|
| 9274 | [d3.time.hour, 6], |
---|
| 9275 | [d3.time.hour, 12], |
---|
| 9276 | [d3.time.day, 1], |
---|
| 9277 | [d3.time.day, 2], |
---|
| 9278 | [d3.time.week, 1], |
---|
| 9279 | [d3.time.month, 1], |
---|
| 9280 | [d3.time.month, 3], |
---|
| 9281 | [d3.time.year, 1] |
---|
| 9282 | ]; |
---|
| 9283 | |
---|
| 9284 | var d3_time_scaleLocalFormats = [ |
---|
| 9285 | [d3.time.format("%Y"), function(d) { return true; }], |
---|
| 9286 | [d3.time.format("%B"), function(d) { return d.getMonth(); }], |
---|
| 9287 | [d3.time.format("%b %d"), function(d) { return d.getDate() != 1; }], |
---|
| 9288 | [d3.time.format("%a %d"), function(d) { return d.getDay() && d.getDate() != 1; }], |
---|
| 9289 | [d3.time.format("%I %p"), function(d) { return d.getHours(); }], |
---|
| 9290 | [d3.time.format("%I:%M"), function(d) { return d.getMinutes(); }], |
---|
| 9291 | [d3.time.format(":%S"), function(d) { return d.getSeconds(); }], |
---|
| 9292 | [d3.time.format(".%L"), function(d) { return d.getMilliseconds(); }] |
---|
| 9293 | ]; |
---|
| 9294 | |
---|
| 9295 | var d3_time_scaleLinear = d3.scale.linear(), |
---|
| 9296 | d3_time_scaleLocalFormat = d3_time_scaleFormat(d3_time_scaleLocalFormats); |
---|
| 9297 | |
---|
| 9298 | d3_time_scaleLocalMethods.year = function(extent, m) { |
---|
| 9299 | return d3_time_scaleLinear.domain(extent.map(d3_time_scaleGetYear)).ticks(m).map(d3_time_scaleSetYear); |
---|
| 9300 | }; |
---|
| 9301 | |
---|
| 9302 | d3.time.scale = function() { |
---|
| 9303 | return d3_time_scale(d3.scale.linear(), d3_time_scaleLocalMethods, d3_time_scaleLocalFormat); |
---|
| 9304 | }; |
---|
| 9305 | var d3_time_scaleUTCMethods = d3_time_scaleLocalMethods.map(function(m) { |
---|
| 9306 | return [m[0].utc, m[1]]; |
---|
| 9307 | }); |
---|
| 9308 | |
---|
| 9309 | var d3_time_scaleUTCFormats = [ |
---|
| 9310 | [d3.time.format.utc("%Y"), function(d) { return true; }], |
---|
| 9311 | [d3.time.format.utc("%B"), function(d) { return d.getUTCMonth(); }], |
---|
| 9312 | [d3.time.format.utc("%b %d"), function(d) { return d.getUTCDate() != 1; }], |
---|
| 9313 | [d3.time.format.utc("%a %d"), function(d) { return d.getUTCDay() && d.getUTCDate() != 1; }], |
---|
| 9314 | [d3.time.format.utc("%I %p"), function(d) { return d.getUTCHours(); }], |
---|
| 9315 | [d3.time.format.utc("%I:%M"), function(d) { return d.getUTCMinutes(); }], |
---|
| 9316 | [d3.time.format.utc(":%S"), function(d) { return d.getUTCSeconds(); }], |
---|
| 9317 | [d3.time.format.utc(".%L"), function(d) { return d.getUTCMilliseconds(); }] |
---|
| 9318 | ]; |
---|
| 9319 | |
---|
| 9320 | var d3_time_scaleUTCFormat = d3_time_scaleFormat(d3_time_scaleUTCFormats); |
---|
| 9321 | |
---|
| 9322 | function d3_time_scaleUTCSetYear(y) { |
---|
| 9323 | var d = new Date(Date.UTC(y, 0, 1)); |
---|
| 9324 | d.setUTCFullYear(y); // Y2K fail |
---|
| 9325 | return d; |
---|
| 9326 | } |
---|
| 9327 | |
---|
| 9328 | function d3_time_scaleUTCGetYear(d) { |
---|
| 9329 | var y = d.getUTCFullYear(), |
---|
| 9330 | d0 = d3_time_scaleUTCSetYear(y), |
---|
| 9331 | d1 = d3_time_scaleUTCSetYear(y + 1); |
---|
| 9332 | return y + (d - d0) / (d1 - d0); |
---|
| 9333 | } |
---|
| 9334 | |
---|
| 9335 | d3_time_scaleUTCMethods.year = function(extent, m) { |
---|
| 9336 | return d3_time_scaleLinear.domain(extent.map(d3_time_scaleUTCGetYear)).ticks(m).map(d3_time_scaleUTCSetYear); |
---|
| 9337 | }; |
---|
| 9338 | |
---|
| 9339 | d3.time.scale.utc = function() { |
---|
| 9340 | return d3_time_scale(d3.scale.linear(), d3_time_scaleUTCMethods, d3_time_scaleUTCFormat); |
---|
| 9341 | }; |
---|
| 9342 | })(); |
---|