dygraphs
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dygraphs is a fast, flexible open source JavaScript charting library.
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<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"> <style>
.KEYW {color: #933;}
.COMM {color: #bbb; font-style: italic;}
.NUMB {color: #393;}
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</style></head><body><pre><span class='line'> 1</span> <span class="STRN">'use strict'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 2</span>
<span class='line'> 3</span> </span><span class="COMM">/**
<span class='line'> 4</span> * @license
<span class='line'> 5</span> * Copyright 2006 Dan Vanderkam (danvdk@gmail.com)
<span class='line'> 6</span> * MIT-licenced: https://opensource.org/license/MIT
<span class='line'> 7</span> */</span><span class="WHIT">
<span class='line'> 8</span>
<span class='line'> 9</span> </span><span class="COMM">/**
<span class='line'> 10</span> * @fileoverview Based on PlotKit.CanvasRenderer, but modified to meet the
<span class='line'> 11</span> * needs of dygraphs.
<span class='line'> 12</span> *
<span class='line'> 13</span> * In particular, support for:
<span class='line'> 14</span> * - grid overlays
<span class='line'> 15</span> * - high/low bands
<span class='line'> 16</span> * - dygraphs attribute system
<span class='line'> 17</span> */</span><span class="WHIT">
<span class='line'> 18</span>
<span class='line'> 19</span> </span><span class="COMM">/**
<span class='line'> 20</span> * The DygraphCanvasRenderer class does the actual rendering of the chart onto
<span class='line'> 21</span> * a canvas. It's based on PlotKit.CanvasRenderer.
<span class='line'> 22</span> * @param {Object} element The canvas to attach to
<span class='line'> 23</span> * @param {Object} elementContext The 2d context of the canvas (injected so it
<span class='line'> 24</span> * can be mocked for testing.)
<span class='line'> 25</span> * @param {Layout} layout The DygraphLayout object for this graph.
<span class='line'> 26</span> * @constructor
<span class='line'> 27</span> */</span><span class="WHIT">
<span class='line'> 28</span>
<span class='line'> 29</span> </span><span class="COMM">/*global Dygraph:false */</span><span class="WHIT">
<span class='line'> 30</span>
<span class='line'> 31</span> </span><span class="NAME">import</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">as</span><span class="WHIT"> </span><span class="NAME">utils</span><span class="WHIT"> </span><span class="NAME">from</span><span class="WHIT"> </span><span class="STRN">'./dygraph-utils'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 32</span> </span><span class="NAME">import</span><span class="WHIT"> </span><span class="NAME">Dygraph</span><span class="WHIT"> </span><span class="NAME">from</span><span class="WHIT"> </span><span class="STRN">'./dygraph'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 33</span>
<span class='line'> 34</span> </span><span class="COMM">/**
<span class='line'> 35</span> * @constructor
<span class='line'> 36</span> *
<span class='line'> 37</span> * This gets called when there are "new points" to chart. This is generally the
<span class='line'> 38</span> * case when the underlying data being charted has changed. It is _not_ called
<span class='line'> 39</span> * in the common case that the user has zoomed or is panning the view.
<span class='line'> 40</span> *
<span class='line'> 41</span> * The chart canvas has already been created by the Dygraph object. The
<span class='line'> 42</span> * renderer simply gets a drawing context.
<span class='line'> 43</span> *
<span class='line'> 44</span> * @param {Dygraph} dygraph The chart to which this renderer belongs.
<span class='line'> 45</span> * @param {HTMLCanvasElement} element The <canvas> DOM element on which to draw.
<span class='line'> 46</span> * @param {CanvasRenderingContext2D} elementContext The drawing context.
<span class='line'> 47</span> * @param {DygraphLayout} layout The chart's DygraphLayout object.
<span class='line'> 48</span> *
<span class='line'> 49</span> * TODO(danvk): remove the elementContext property.
<span class='line'> 50</span> */</span><span class="WHIT">
<span class='line'> 51</span> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">dygraph</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">element</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">elementContext</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">layout</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 52</span> </span><span class="WHIT"> </span><span class="NAME">this.dygraph_</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">dygraph</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 53</span>
<span class='line'> 54</span> </span><span class="WHIT"> </span><span class="NAME">this.layout</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layout</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 55</span> </span><span class="WHIT"> </span><span class="NAME">this.element</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">element</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 56</span> </span><span class="WHIT"> </span><span class="NAME">this.elementContext</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">elementContext</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 57</span>
<span class='line'> 58</span> </span><span class="WHIT"> </span><span class="NAME">this.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">dygraph.height_</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 59</span> </span><span class="WHIT"> </span><span class="NAME">this.width</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">dygraph.width_</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 60</span>
<span class='line'> 61</span> </span><span class="WHIT"> </span><span class="COMM">// --- check whether everything is ok before we return</span><span class="WHIT">
<span class='line'> 62</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">utils.isCanvasSupported</span><span class="PUNC">(</span><span class="NAME">this.element</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 63</span> </span><span class="WHIT"> </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="STRN">"Canvas is not supported."</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 64</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'> 65</span>
<span class='line'> 66</span> </span><span class="WHIT"> </span><span class="COMM">// internal state</span><span class="WHIT">
<span class='line'> 67</span> </span><span class="WHIT"> </span><span class="NAME">this.area</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layout.getPlotArea</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 68</span>
<span class='line'> 69</span> </span><span class="WHIT"> </span><span class="COMM">// Set up a clipping area for the canvas (and the interaction canvas).</span><span class="WHIT">
<span class='line'> 70</span> </span><span class="WHIT"> </span><span class="COMM">// This ensures that we don't overdraw.</span><span class="WHIT">
<span class='line'> 71</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ctx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.dygraph_.canvas_ctx_</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 72</span> </span><span class="WHIT"> </span><span class="NAME">ctx.beginPath</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 73</span> </span><span class="WHIT"> </span><span class="NAME">ctx.rect</span><span class="PUNC">(</span><span class="NAME">this.area.x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.area.y</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.area.w</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.area.h</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 74</span> </span><span class="WHIT"> </span><span class="NAME">ctx.clip</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 75</span>
<span class='line'> 76</span> </span><span class="WHIT"> </span><span class="NAME">ctx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.dygraph_.hidden_ctx_</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 77</span> </span><span class="WHIT"> </span><span class="NAME">ctx.beginPath</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 78</span> </span><span class="WHIT"> </span><span class="NAME">ctx.rect</span><span class="PUNC">(</span><span class="NAME">this.area.x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.area.y</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.area.w</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.area.h</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 79</span> </span><span class="WHIT"> </span><span class="NAME">ctx.clip</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 80</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 81</span>
<span class='line'> 82</span> </span><span class="COMM">/**
<span class='line'> 83</span> * Clears out all chart content and DOM elements.
<span class='line'> 84</span> * This is called immediately before render() on every frame, including
<span class='line'> 85</span> * during zooms and pans.
<span class='line'> 86</span> * @private
<span class='line'> 87</span> */</span><span class="WHIT">
<span class='line'> 88</span> </span><span class="NAME">DygraphCanvasRenderer.prototype.clear</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 89</span> </span><span class="WHIT"> </span><span class="NAME">this.elementContext.clearRect</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.width</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.height</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 90</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 91</span>
<span class='line'> 92</span> </span><span class="COMM">/**
<span class='line'> 93</span> * This method is responsible for drawing everything on the chart, including
<span class='line'> 94</span> * lines, high/low bands, fills and axes.
<span class='line'> 95</span> * It is called immediately after clear() on every frame, including during pans
<span class='line'> 96</span> * and zooms.
<span class='line'> 97</span> * @private
<span class='line'> 98</span> */</span><span class="WHIT">
<span class='line'> 99</span> </span><span class="NAME">DygraphCanvasRenderer.prototype.render</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>100</span> </span><span class="WHIT"> </span><span class="COMM">// attaches point.canvas{x,y}</span><span class="WHIT">
<span class='line'>101</span> </span><span class="WHIT"> </span><span class="NAME">this._updatePoints</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>102</span>
<span class='line'>103</span> </span><span class="WHIT"> </span><span class="COMM">// actually draws the chart.</span><span class="WHIT">
<span class='line'>104</span> </span><span class="WHIT"> </span><span class="NAME">this._renderLineChart</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>105</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>106</span>
<span class='line'>107</span> </span><span class="COMM">/**
<span class='line'>108</span> * Returns a predicate to be used with an iterator, which will
<span class='line'>109</span> * iterate over points appropriately, depending on whether
<span class='line'>110</span> * connectSeparatedPoints is true. When it's false, the predicate will
<span class='line'>111</span> * skip over points with missing yVals.
<span class='line'>112</span> */</span><span class="WHIT">
<span class='line'>113</span> </span><span class="NAME">DygraphCanvasRenderer._getIteratorPredicate</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">connectSeparatedPoints</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>114</span> </span><span class="WHIT"> </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">connectSeparatedPoints</span><span class="WHIT"> </span><span class="PUNC">?</span><span class="WHIT">
<span class='line'>115</span> </span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer._predicateThatSkipsEmptyPoints</span><span class="WHIT"> </span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>116</span> </span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>117</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>118</span>
<span class='line'>119</span> </span><span class="NAME">DygraphCanvasRenderer._predicateThatSkipsEmptyPoints</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT">
<span class='line'>120</span> </span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">array</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">idx</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>121</span> </span><span class="WHIT"> </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">array</span><span class="PUNC">[</span><span class="NAME">idx</span><span class="PUNC">]</span><span class="PUNC">.</span><span class="NAME">yval</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>122</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>123</span>
<span class='line'>124</span> </span><span class="COMM">/**
<span class='line'>125</span> * Draws a line with the styles passed in and calls all the drawPointCallbacks.
<span class='line'>126</span> * @param {Object} e The dictionary passed to the plotter function.
<span class='line'>127</span> * @private
<span class='line'>128</span> */</span><span class="WHIT">
<span class='line'>129</span> </span><span class="NAME">DygraphCanvasRenderer._drawStyledLine</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>130</span> </span><span class="WHIT"> </span><span class="NAME">color</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">strokeWidth</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">strokePattern</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">drawPoints</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>131</span> </span><span class="WHIT"> </span><span class="NAME">drawPointCallback</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pointSize</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>132</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">g</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.dygraph</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>133</span> </span><span class="WHIT"> </span><span class="COMM">// TODO(konigsberg): Compute attributes outside this method call.</span><span class="WHIT">
<span class='line'>134</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">stepPlot</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">"stepPlot"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">e.setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>135</span>
<span class='line'>136</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">utils.isArrayLike</span><span class="PUNC">(</span><span class="NAME">strokePattern</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>137</span> </span><span class="WHIT"> </span><span class="NAME">strokePattern</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>138</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>139</span>
<span class='line'>140</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">drawGapPoints</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">'drawGapEdgePoints'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">e.setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>141</span>
<span class='line'>142</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">points</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.points</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>143</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.setName</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>144</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">iter</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.createIterator</span><span class="PUNC">(</span><span class="NAME">points</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">points.length</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>145</span> </span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer._getIteratorPredicate</span><span class="PUNC">(</span><span class="WHIT">
<span class='line'>146</span> </span><span class="WHIT"> </span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">"connectSeparatedPoints"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>147</span>
<span class='line'>148</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">stroking</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">strokePattern</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">strokePattern.length</span><span class="WHIT"> </span><span class="PUNC">>=</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>149</span>
<span class='line'>150</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ctx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.drawingContext</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>151</span> </span><span class="WHIT"> </span><span class="NAME">ctx.save</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>152</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">stroking</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>153</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ctx.setLineDash</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="NAME">ctx.setLineDash</span><span class="PUNC">(</span><span class="NAME">strokePattern</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>154</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>155</span>
<span class='line'>156</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">pointsOnLine</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer._drawSeries</span><span class="PUNC">(</span><span class="WHIT">
<span class='line'>157</span> </span><span class="WHIT"> </span><span class="NAME">e</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">iter</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">strokeWidth</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pointSize</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">drawPoints</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">drawGapPoints</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">stepPlot</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">color</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>158</span> </span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer._drawPointsOnLine</span><span class="PUNC">(</span><span class="WHIT">
<span class='line'>159</span> </span><span class="WHIT"> </span><span class="NAME">e</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pointsOnLine</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">drawPointCallback</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">color</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pointSize</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>160</span>
<span class='line'>161</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">stroking</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>162</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ctx.setLineDash</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="NAME">ctx.setLineDash</span><span class="PUNC">(</span><span class="PUNC">[</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>163</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>164</span>
<span class='line'>165</span> </span><span class="WHIT"> </span><span class="NAME">ctx.restore</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>166</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>167</span>
<span class='line'>168</span> </span><span class="COMM">/**
<span class='line'>169</span> * This does the actual drawing of lines on the canvas, for just one series.
<span class='line'>170</span> * Returns a list of [canvasx, canvasy] pairs for points for which a
<span class='line'>171</span> * drawPointCallback should be fired. These include isolated points, or all
<span class='line'>172</span> * points if drawPoints=true.
<span class='line'>173</span> * @param {Object} e The dictionary passed to the plotter function.
<span class='line'>174</span> * @private
<span class='line'>175</span> */</span><span class="WHIT">
<span class='line'>176</span> </span><span class="NAME">DygraphCanvasRenderer._drawSeries</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>177</span> </span><span class="WHIT"> </span><span class="NAME">iter</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">strokeWidth</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pointSize</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">drawPoints</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">drawGapPoints</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">stepPlot</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">color</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>178</span>
<span class='line'>179</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">prevCanvasX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>180</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">prevCanvasY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>181</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">nextCanvasY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>182</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">isIsolated</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// true if this point is isolated (no line segments)</span><span class="WHIT">
<span class='line'>183</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">point</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// the point being processed in the while loop</span><span class="WHIT">
<span class='line'>184</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">pointsOnLine</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// Array of [canvasx, canvasy] pairs.</span><span class="WHIT">
<span class='line'>185</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">first</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// the first cycle through the while loop</span><span class="WHIT">
<span class='line'>186</span>
<span class='line'>187</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ctx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.drawingContext</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>188</span> </span><span class="WHIT"> </span><span class="NAME">ctx.beginPath</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>189</span> </span><span class="WHIT"> </span><span class="NAME">ctx.strokeStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">color</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>190</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineWidth</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">strokeWidth</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>191</span>
<span class='line'>192</span> </span><span class="WHIT"> </span><span class="COMM">// NOTE: we break the iterator's encapsulation here for about a 25% speedup.</span><span class="WHIT">
<span class='line'>193</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">arr</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">iter.array_</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>194</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">limit</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">iter.end_</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>195</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">predicate</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">iter.predicate_</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>196</span>
<span class='line'>197</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">iter.start_</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC"><</span><span class="WHIT"> </span><span class="NAME">limit</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>198</span> </span><span class="WHIT"> </span><span class="NAME">point</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">arr</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>199</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">predicate</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>200</span> </span><span class="WHIT"> </span><span class="KEYW">while</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC"><</span><span class="WHIT"> </span><span class="NAME">limit</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">predicate</span><span class="PUNC">(</span><span class="NAME">arr</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>201</span> </span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>202</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>203</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">==</span><span class="WHIT"> </span><span class="NAME">limit</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="KEYW">break</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>204</span> </span><span class="WHIT"> </span><span class="NAME">point</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">arr</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>205</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>206</span>
<span class='line'>207</span> </span><span class="WHIT"> </span><span class="COMM">// FIXME: The 'canvasy != canvasy' test here catches NaN values but the test</span><span class="WHIT">
<span class='line'>208</span> </span><span class="WHIT"> </span><span class="COMM">// doesn't catch Infinity values. Could change this to</span><span class="WHIT">
<span class='line'>209</span> </span><span class="WHIT"> </span><span class="COMM">// !isFinite(point.canvasy), but I assume it avoids isNaN for performance?</span><span class="WHIT">
<span class='line'>210</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">point.canvasy</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">point.canvasy</span><span class="WHIT"> </span><span class="PUNC">!=</span><span class="WHIT"> </span><span class="NAME">point.canvasy</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>211</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">stepPlot</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">prevCanvasX</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>212</span> </span><span class="WHIT"> </span><span class="COMM">// Draw a horizontal line to the start of the missing data</span><span class="WHIT">
<span class='line'>213</span> </span><span class="WHIT"> </span><span class="NAME">ctx.moveTo</span><span class="PUNC">(</span><span class="NAME">prevCanvasX</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevCanvasY</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>214</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevCanvasY</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>215</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>216</span> </span><span class="WHIT"> </span><span class="NAME">prevCanvasX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">prevCanvasY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>217</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>218</span> </span><span class="WHIT"> </span><span class="NAME">isIsolated</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>219</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">drawGapPoints</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">prevCanvasX</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>220</span> </span><span class="WHIT"> </span><span class="NAME">iter.nextIdx_</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>221</span> </span><span class="WHIT"> </span><span class="NAME">iter.next</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>222</span> </span><span class="WHIT"> </span><span class="NAME">nextCanvasY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">iter.hasNext</span><span class="WHIT"> </span><span class="PUNC">?</span><span class="WHIT"> </span><span class="NAME">iter.peek.canvasy</span><span class="WHIT"> </span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>223</span>
<span class='line'>224</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">isNextCanvasYNullOrNaN</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">nextCanvasY</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT">
<span class='line'>225</span> </span><span class="WHIT"> </span><span class="NAME">nextCanvasY</span><span class="WHIT"> </span><span class="PUNC">!=</span><span class="WHIT"> </span><span class="NAME">nextCanvasY</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>226</span> </span><span class="WHIT"> </span><span class="NAME">isIsolated</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">prevCanvasX</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">isNextCanvasYNullOrNaN</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>227</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">drawGapPoints</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>228</span> </span><span class="WHIT"> </span><span class="COMM">// Also consider a point to be "isolated" if it's adjacent to a</span><span class="WHIT">
<span class='line'>229</span> </span><span class="WHIT"> </span><span class="COMM">// null point, excluding the graph edges.</span><span class="WHIT">
<span class='line'>230</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">first</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">prevCanvasX</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT">
<span class='line'>231</span> </span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">iter.hasNext</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">isNextCanvasYNullOrNaN</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>232</span> </span><span class="WHIT"> </span><span class="NAME">isIsolated</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>233</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>234</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>235</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>236</span>
<span class='line'>237</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">prevCanvasX</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>238</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">strokeWidth</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>239</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">stepPlot</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>240</span> </span><span class="WHIT"> </span><span class="NAME">ctx.moveTo</span><span class="PUNC">(</span><span class="NAME">prevCanvasX</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevCanvasY</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>241</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevCanvasY</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>242</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>243</span>
<span class='line'>244</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">point.canvasy</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>245</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>246</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>247</span> </span><span class="WHIT"> </span><span class="NAME">ctx.moveTo</span><span class="PUNC">(</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">point.canvasy</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>248</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>249</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">drawPoints</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">isIsolated</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>250</span> </span><span class="WHIT"> </span><span class="NAME">pointsOnLine.push</span><span class="PUNC">(</span><span class="PUNC">[</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">point.canvasy</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">point.idx</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>251</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>252</span> </span><span class="WHIT"> </span><span class="NAME">prevCanvasX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">point.canvasx</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>253</span> </span><span class="WHIT"> </span><span class="NAME">prevCanvasY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">point.canvasy</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>254</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>255</span> </span><span class="WHIT"> </span><span class="NAME">first</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>256</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>257</span> </span><span class="WHIT"> </span><span class="NAME">ctx.stroke</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>258</span> </span><span class="WHIT"> </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">pointsOnLine</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>259</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>260</span>
<span class='line'>261</span> </span><span class="COMM">/**
<span class='line'>262</span> * This fires the drawPointCallback functions, which draw dots on the points by
<span class='line'>263</span> * default. This gets used when the "drawPoints" option is set, or when there
<span class='line'>264</span> * are isolated points.
<span class='line'>265</span> * @param {Object} e The dictionary passed to the plotter function.
<span class='line'>266</span> * @private
<span class='line'>267</span> */</span><span class="WHIT">
<span class='line'>268</span> </span><span class="NAME">DygraphCanvasRenderer._drawPointsOnLine</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="WHIT">
<span class='line'>269</span> </span><span class="WHIT"> </span><span class="NAME">e</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pointsOnLine</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">drawPointCallback</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">color</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pointSize</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>270</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ctx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.drawingContext</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>271</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">idx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">idx</span><span class="WHIT"> </span><span class="PUNC"><</span><span class="WHIT"> </span><span class="NAME">pointsOnLine.length</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">idx</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>272</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cb</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pointsOnLine</span><span class="PUNC">[</span><span class="NAME">idx</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>273</span> </span><span class="WHIT"> </span><span class="NAME">ctx.save</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>274</span> </span><span class="WHIT"> </span><span class="NAME">drawPointCallback.call</span><span class="PUNC">(</span><span class="NAME">e.dygraph</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>275</span> </span><span class="WHIT"> </span><span class="NAME">e.dygraph</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">e.setName</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ctx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cb</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cb</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">color</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pointSize</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cb</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>276</span> </span><span class="WHIT"> </span><span class="NAME">ctx.restore</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>277</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>278</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>279</span>
<span class='line'>280</span> </span><span class="COMM">/**
<span class='line'>281</span> * Attaches canvas coordinates to the points array.
<span class='line'>282</span> * @private
<span class='line'>283</span> */</span><span class="WHIT">
<span class='line'>284</span> </span><span class="NAME">DygraphCanvasRenderer.prototype._updatePoints</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>285</span> </span><span class="WHIT"> </span><span class="COMM">// Update Points</span><span class="WHIT">
<span class='line'>286</span> </span><span class="WHIT"> </span><span class="COMM">// TODO(danvk): here</span><span class="WHIT">
<span class='line'>287</span> </span><span class="WHIT"> </span><span class="COMM">//</span><span class="WHIT">
<span class='line'>288</span> </span><span class="WHIT"> </span><span class="COMM">// TODO(bhs): this loop is a hot-spot for high-point-count charts. These</span><span class="WHIT">
<span class='line'>289</span> </span><span class="WHIT"> </span><span class="COMM">// transformations can be pushed into the canvas via linear transformation</span><span class="WHIT">
<span class='line'>290</span> </span><span class="WHIT"> </span><span class="COMM">// matrices.</span><span class="WHIT">
<span class='line'>291</span> </span><span class="WHIT"> </span><span class="COMM">// NOTE(danvk): this is trickier than it sounds at first. The transformation</span><span class="WHIT">
<span class='line'>292</span> </span><span class="WHIT"> </span><span class="COMM">// needs to be done before the .moveTo() and .lineTo() calls, but must be</span><span class="WHIT">
<span class='line'>293</span> </span><span class="WHIT"> </span><span class="COMM">// undone before the .stroke() call to ensure that the stroke width is</span><span class="WHIT">
<span class='line'>294</span> </span><span class="WHIT"> </span><span class="COMM">// unaffected. An alternative is to reduce the stroke width in the</span><span class="WHIT">
<span class='line'>295</span> </span><span class="WHIT"> </span><span class="COMM">// transformed coordinate space, but you can't specify different values for</span><span class="WHIT">
<span class='line'>296</span> </span><span class="WHIT"> </span><span class="COMM">// each dimension (as you can with .scale()). The speedup here is ~12%.</span><span class="WHIT">
<span class='line'>297</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sets</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.layout.points</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>298</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">sets.length</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">--</span><span class="PUNC">;</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>299</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">points</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">sets</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>300</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">points.length</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">--</span><span class="PUNC">;</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>301</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">point</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">points</span><span class="PUNC">[</span><span class="NAME">j</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>302</span> </span><span class="WHIT"> </span><span class="NAME">point.canvasx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.area.w</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">point.x</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">this.area.x</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>303</span> </span><span class="WHIT"> </span><span class="NAME">point.canvasy</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.area.h</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">point.y</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">this.area.y</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>304</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>305</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>306</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>307</span>
<span class='line'>308</span> </span><span class="COMM">/**
<span class='line'>309</span> * Add canvas Actually draw the lines chart, including high/low bands.
<span class='line'>310</span> *
<span class='line'>311</span> * This function can only be called if DygraphLayout's points array has been
<span class='line'>312</span> * updated with canvas{x,y} attributes, i.e. by
<span class='line'>313</span> * DygraphCanvasRenderer._updatePoints.
<span class='line'>314</span> *
<span class='line'>315</span> * @param {string=} opt_seriesName when specified, only that series will
<span class='line'>316</span> * be drawn. (This is used for expedited redrawing with highlightSeriesOpts)
<span class='line'>317</span> * @param {CanvasRenderingContext2D} opt_ctx when specified, the drawing
<span class='line'>318</span> * context. However, lines are typically drawn on the object's
<span class='line'>319</span> * elementContext.
<span class='line'>320</span> * @private
<span class='line'>321</span> */</span><span class="WHIT">
<span class='line'>322</span> </span><span class="NAME">DygraphCanvasRenderer.prototype._renderLineChart</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">opt_seriesName</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">opt_ctx</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>323</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ctx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">opt_ctx</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">this.elementContext</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>324</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>325</span>
<span class='line'>326</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sets</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.layout.points</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>327</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">setNames</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.layout.setNames</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>328</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>329</span>
<span class='line'>330</span> </span><span class="WHIT"> </span><span class="NAME">this.colors</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.dygraph_.colorsMap_</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>331</span>
<span class='line'>332</span> </span><span class="WHIT"> </span><span class="COMM">// Determine which series have specialized plotters.</span><span class="WHIT">
<span class='line'>333</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">plotter_attr</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.dygraph_.getOption</span><span class="PUNC">(</span><span class="STRN">"plotter"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>334</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">plotters</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">plotter_attr</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>335</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">utils.isArrayLike</span><span class="PUNC">(</span><span class="NAME">plotters</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>336</span> </span><span class="WHIT"> </span><span class="NAME">plotters</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="NAME">plotters</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>337</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>338</span>
<span class='line'>339</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">setPlotters</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// series name -> plotter fn.</span><span class="WHIT">
<span class='line'>340</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC"><</span><span class="WHIT"> </span><span class="NAME">setNames.length</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>341</span> </span><span class="WHIT"> </span><span class="NAME">setName</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">setNames</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>342</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">setPlotter</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.dygraph_.getOption</span><span class="PUNC">(</span><span class="STRN">"plotter"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>343</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">setPlotter</span><span class="WHIT"> </span><span class="PUNC">==</span><span class="WHIT"> </span><span class="NAME">plotter_attr</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="KEYW">continue</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// not specialized.</span><span class="WHIT">
<span class='line'>344</span>
<span class='line'>345</span> </span><span class="WHIT"> </span><span class="NAME">setPlotters</span><span class="PUNC">[</span><span class="NAME">setName</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">setPlotter</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>346</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>347</span>
<span class='line'>348</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC"><</span><span class="WHIT"> </span><span class="NAME">plotters.length</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>349</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">plotter</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">plotters</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>350</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">is_last</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">==</span><span class="WHIT"> </span><span class="NAME">plotters.length</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>351</span>
<span class='line'>352</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="WHIT"> </span><span class="PUNC"><</span><span class="WHIT"> </span><span class="NAME">sets.length</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>353</span> </span><span class="WHIT"> </span><span class="NAME">setName</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">setNames</span><span class="PUNC">[</span><span class="NAME">j</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>354</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">opt_seriesName</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="WHIT"> </span><span class="PUNC">!=</span><span class="WHIT"> </span><span class="NAME">opt_seriesName</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="KEYW">continue</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>355</span>
<span class='line'>356</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">points</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">sets</span><span class="PUNC">[</span><span class="NAME">j</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>357</span>
<span class='line'>358</span> </span><span class="WHIT"> </span><span class="COMM">// Only throw in the specialized plotters on the last iteration.</span><span class="WHIT">
<span class='line'>359</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">plotter</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>360</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">setName</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">setPlotters</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>361</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">is_last</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>362</span> </span><span class="WHIT"> </span><span class="NAME">p</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">setPlotters</span><span class="PUNC">[</span><span class="NAME">setName</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>363</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>364</span> </span><span class="WHIT"> </span><span class="COMM">// Don't use the standard plotters in this case.</span><span class="WHIT">
<span class='line'>365</span> </span><span class="WHIT"> </span><span class="KEYW">continue</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>366</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>367</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>368</span>
<span class='line'>369</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">color</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.colors</span><span class="PUNC">[</span><span class="NAME">setName</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>370</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">strokeWidth</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.dygraph_.getOption</span><span class="PUNC">(</span><span class="STRN">"strokeWidth"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>371</span>
<span class='line'>372</span> </span><span class="WHIT"> </span><span class="NAME">ctx.save</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>373</span> </span><span class="WHIT"> </span><span class="NAME">ctx.strokeStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">color</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>374</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineWidth</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">strokeWidth</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>375</span> </span><span class="WHIT"> </span><span class="NAME">p</span><span class="PUNC">(</span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>376</span> </span><span class="WHIT"> </span><span class="NAME">points</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">points</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>377</span> </span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>378</span> </span><span class="WHIT"> </span><span class="NAME">drawingContext</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">ctx</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>379</span> </span><span class="WHIT"> </span><span class="NAME">color</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">color</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>380</span> </span><span class="WHIT"> </span><span class="NAME">strokeWidth</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">strokeWidth</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>381</span> </span><span class="WHIT"> </span><span class="NAME">dygraph</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">this.dygraph_</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>382</span> </span><span class="WHIT"> </span><span class="NAME">axis</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">this.dygraph_.axisPropertiesForSeries</span><span class="PUNC">(</span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>383</span> </span><span class="WHIT"> </span><span class="NAME">plotArea</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">this.area</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>384</span> </span><span class="WHIT"> </span><span class="NAME">seriesIndex</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">j</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>385</span> </span><span class="WHIT"> </span><span class="NAME">seriesCount</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">sets.length</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>386</span> </span><span class="WHIT"> </span><span class="NAME">singleSeriesName</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">opt_seriesName</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>387</span> </span><span class="WHIT"> </span><span class="NAME">allSeriesPoints</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">sets</span><span class="WHIT">
<span class='line'>388</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>389</span> </span><span class="WHIT"> </span><span class="NAME">ctx.restore</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>390</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>391</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>392</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>393</span>
<span class='line'>394</span> </span><span class="COMM">/**
<span class='line'>395</span> * Standard plotters. These may be used by clients via Dygraph.Plotters.
<span class='line'>396</span> * See comments there for more details.
<span class='line'>397</span> */</span><span class="WHIT">
<span class='line'>398</span> </span><span class="NAME">DygraphCanvasRenderer._Plotters</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>399</span> </span><span class="WHIT"> </span><span class="NAME">linePlotter</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>400</span> </span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer._linePlotter</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>401</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>402</span>
<span class='line'>403</span> </span><span class="WHIT"> </span><span class="NAME">fillPlotter</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>404</span> </span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer._fillPlotter</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>405</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>406</span>
<span class='line'>407</span> </span><span class="WHIT"> </span><span class="NAME">errorPlotter</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>408</span> </span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer._errorPlotter</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>409</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>410</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>411</span>
<span class='line'>412</span> </span><span class="COMM">/**
<span class='line'>413</span> * Plotter which draws the central lines for a series.
<span class='line'>414</span> * @private
<span class='line'>415</span> */</span><span class="WHIT">
<span class='line'>416</span> </span><span class="NAME">DygraphCanvasRenderer._linePlotter</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>417</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">g</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.dygraph</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>418</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.setName</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>419</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">strokeWidth</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.strokeWidth</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>420</span>
<span class='line'>421</span> </span><span class="WHIT"> </span><span class="COMM">// TODO(danvk): Check if there's any performance impact of just calling</span><span class="WHIT">
<span class='line'>422</span> </span><span class="WHIT"> </span><span class="COMM">// getOption() inside of _drawStyledLine. Passing in so many parameters makes</span><span class="WHIT">
<span class='line'>423</span> </span><span class="WHIT"> </span><span class="COMM">// this code a bit nasty.</span><span class="WHIT">
<span class='line'>424</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">borderWidth</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getNumericOption</span><span class="PUNC">(</span><span class="STRN">"strokeBorderWidth"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>425</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">drawPointCallback</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getOption</span><span class="PUNC">(</span><span class="STRN">"drawPointCallback"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT">
<span class='line'>426</span> </span><span class="WHIT"> </span><span class="NAME">utils.Circles.DEFAULT</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>427</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">strokePattern</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getOption</span><span class="PUNC">(</span><span class="STRN">"strokePattern"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>428</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">drawPoints</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">"drawPoints"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>429</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">pointSize</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getNumericOption</span><span class="PUNC">(</span><span class="STRN">"pointSize"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>430</span>
<span class='line'>431</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">borderWidth</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">strokeWidth</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>432</span> </span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer._drawStyledLine</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>433</span> </span><span class="WHIT"> </span><span class="NAME">g.getOption</span><span class="PUNC">(</span><span class="STRN">"strokeBorderColor"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>434</span> </span><span class="WHIT"> </span><span class="NAME">strokeWidth</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">borderWidth</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>435</span> </span><span class="WHIT"> </span><span class="NAME">strokePattern</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>436</span> </span><span class="WHIT"> </span><span class="NAME">drawPoints</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>437</span> </span><span class="WHIT"> </span><span class="NAME">drawPointCallback</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>438</span> </span><span class="WHIT"> </span><span class="NAME">pointSize</span><span class="WHIT">
<span class='line'>439</span> </span><span class="WHIT"> </span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>440</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>441</span>
<span class='line'>442</span> </span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer._drawStyledLine</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>443</span> </span><span class="WHIT"> </span><span class="NAME">e.color</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>444</span> </span><span class="WHIT"> </span><span class="NAME">strokeWidth</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>445</span> </span><span class="WHIT"> </span><span class="NAME">strokePattern</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>446</span> </span><span class="WHIT"> </span><span class="NAME">drawPoints</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>447</span> </span><span class="WHIT"> </span><span class="NAME">drawPointCallback</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>448</span> </span><span class="WHIT"> </span><span class="NAME">pointSize</span><span class="WHIT">
<span class='line'>449</span> </span><span class="WHIT"> </span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>450</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>451</span>
<span class='line'>452</span> </span><span class="COMM">/**
<span class='line'>453</span> * Draws the shaded high/low bands (confidence intervals) for each series.
<span class='line'>454</span> * This happens before the center lines are drawn, since the center lines
<span class='line'>455</span> * need to be drawn on top of the high/low bands for all series.
<span class='line'>456</span> * @private
<span class='line'>457</span> */</span><span class="WHIT">
<span class='line'>458</span> </span><span class="NAME">DygraphCanvasRenderer._errorPlotter</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>459</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">g</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.dygraph</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>460</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.setName</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>461</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">errorBars</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">"errorBars"</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT">
<span class='line'>462</span> </span><span class="WHIT"> </span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">"customBars"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>463</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">errorBars</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>464</span>
<span class='line'>465</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">fillGraph</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">"fillGraph"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>466</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">fillGraph</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>467</span> </span><span class="WHIT"> </span><span class="NAME">console.warn</span><span class="PUNC">(</span><span class="STRN">"Can't use fillGraph option with customBars or errorBars option"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>468</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>469</span>
<span class='line'>470</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ctx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.drawingContext</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>471</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">color</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.color</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>472</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">fillAlpha</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getNumericOption</span><span class="PUNC">(</span><span class="STRN">'fillAlpha'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>473</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">stepPlot</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">"stepPlot"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>474</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">points</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.points</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>475</span>
<span class='line'>476</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">iter</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.createIterator</span><span class="PUNC">(</span><span class="NAME">points</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">points.length</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>477</span> </span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer._getIteratorPredicate</span><span class="PUNC">(</span><span class="WHIT">
<span class='line'>478</span> </span><span class="WHIT"> </span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">"connectSeparatedPoints"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>479</span>
<span class='line'>480</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>481</span>
<span class='line'>482</span> </span><span class="WHIT"> </span><span class="COMM">// setup graphics context</span><span class="WHIT">
<span class='line'>483</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">prevX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">NaN</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>484</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">prevY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">NaN</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>485</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">prevYs</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>486</span> </span><span class="WHIT"> </span><span class="COMM">// should be same color as the lines but only 15% opaque.</span><span class="WHIT">
<span class='line'>487</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">rgb</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.toRGB_</span><span class="PUNC">(</span><span class="NAME">color</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>488</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">err_color</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT">
<span class='line'>489</span> </span><span class="WHIT"> </span><span class="STRN">'rgba('</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">rgb.r</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">','</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">rgb.g</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">','</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">rgb.b</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">','</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">fillAlpha</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">')'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>490</span> </span><span class="WHIT"> </span><span class="NAME">ctx.fillStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">err_color</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>491</span> </span><span class="WHIT"> </span><span class="NAME">ctx.beginPath</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>492</span>
<span class='line'>493</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">isNullUndefinedOrNaN</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">x</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>494</span> </span><span class="WHIT"> </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">x</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT">
<span class='line'>495</span> </span><span class="WHIT"> </span><span class="NAME">x</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT">
<span class='line'>496</span> </span><span class="WHIT"> </span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">x</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>497</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>498</span>
<span class='line'>499</span> </span><span class="WHIT"> </span><span class="KEYW">while</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">iter.hasNext</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>500</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">point</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">iter.next</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>501</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">stepPlot</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">isNullUndefinedOrNaN</span><span class="PUNC">(</span><span class="NAME">point.y</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT">
<span class='line'>502</span> </span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">stepPlot</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">prevY</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">isNullUndefinedOrNaN</span><span class="PUNC">(</span><span class="NAME">prevY</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>503</span> </span><span class="WHIT"> </span><span class="NAME">prevX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">NaN</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>504</span> </span><span class="WHIT"> </span><span class="KEYW">continue</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>505</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>506</span>
<span class='line'>507</span> </span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="WHIT"> </span><span class="NAME">point.y_bottom</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">point.y_top</span><span class="WHIT"> </span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>508</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">stepPlot</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>509</span> </span><span class="WHIT"> </span><span class="NAME">prevY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">point.y</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>510</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>511</span>
<span class='line'>512</span> </span><span class="WHIT"> </span><span class="COMM">// The documentation specifically disallows nulls inside the point arrays,</span><span class="WHIT">
<span class='line'>513</span> </span><span class="WHIT"> </span><span class="COMM">// but in case it happens we should do something sensible.</span><span class="WHIT">
<span class='line'>514</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">point.y</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>515</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">point.y</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>516</span>
<span class='line'>517</span> </span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.plotArea.h</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">e.plotArea.y</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>518</span> </span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.plotArea.h</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">e.plotArea.y</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>519</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">prevX</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>520</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">stepPlot</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>521</span> </span><span class="WHIT"> </span><span class="NAME">ctx.moveTo</span><span class="PUNC">(</span><span class="NAME">prevX</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>522</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>523</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevYs</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>524</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>525</span> </span><span class="WHIT"> </span><span class="NAME">ctx.moveTo</span><span class="PUNC">(</span><span class="NAME">prevX</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>526</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>527</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>528</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>529</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">prevX</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevYs</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>530</span> </span><span class="WHIT"> </span><span class="NAME">ctx.closePath</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>531</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>532</span> </span><span class="WHIT"> </span><span class="NAME">prevYs</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>533</span> </span><span class="WHIT"> </span><span class="NAME">prevX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">point.canvasx</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>534</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>535</span> </span><span class="WHIT"> </span><span class="NAME">ctx.fill</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>536</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>537</span>
<span class='line'>538</span> </span><span class="COMM">/**
<span class='line'>539</span> * Proxy for CanvasRenderingContext2D which drops moveTo/lineTo calls which are
<span class='line'>540</span> * superfluous. It accumulates all movements which haven't changed the x-value
<span class='line'>541</span> * and only applies the two with the most extreme y-values.
<span class='line'>542</span> *
<span class='line'>543</span> * Calls to lineTo/moveTo must have non-decreasing x-values.
<span class='line'>544</span> */</span><span class="WHIT">
<span class='line'>545</span> </span><span class="NAME">DygraphCanvasRenderer._fastCanvasProxy</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">context</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>546</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">pendingActions</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// array of [type, x, y] tuples</span><span class="WHIT">
<span class='line'>547</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">lastRoundedX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>548</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">lastFlushedX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>549</span>
<span class='line'>550</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">LINE_TO</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>551</span> </span><span class="WHIT"> </span><span class="NAME">MOVE_TO</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>552</span>
<span class='line'>553</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">actionCount</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// number of moveTos and lineTos passed to context.</span><span class="WHIT">
<span class='line'>554</span>
<span class='line'>555</span> </span><span class="WHIT"> </span><span class="COMM">// Drop superfluous motions</span><span class="WHIT">
<span class='line'>556</span> </span><span class="WHIT"> </span><span class="COMM">// Assumes all pendingActions have the same (rounded) x-value.</span><span class="WHIT">
<span class='line'>557</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">compressActions</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">opt_losslessOnly</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>558</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">pendingActions.length</span><span class="WHIT"> </span><span class="PUNC"><=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>559</span>
<span class='line'>560</span> </span><span class="WHIT"> </span><span class="COMM">// Lossless compression: drop inconsequential moveTos.</span><span class="WHIT">
<span class='line'>561</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pendingActions.length</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">--</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>562</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">action</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pendingActions</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>563</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">action</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">==</span><span class="WHIT"> </span><span class="NAME">MOVE_TO</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>564</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">prevAction</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pendingActions</span><span class="PUNC">[</span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>565</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">prevAction</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">==</span><span class="WHIT"> </span><span class="NAME">action</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">prevAction</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">==</span><span class="WHIT"> </span><span class="NAME">action</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>566</span> </span><span class="WHIT"> </span><span class="NAME">pendingActions.splice</span><span class="PUNC">(</span><span class="NAME">i</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>567</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>568</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>569</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>570</span>
<span class='line'>571</span> </span><span class="WHIT"> </span><span class="COMM">// Lossless compression: ... drop consecutive moveTos ...</span><span class="WHIT">
<span class='line'>572</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC"><</span><span class="WHIT"> </span><span class="NAME">pendingActions.length</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">/* incremented internally */</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>573</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">action</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pendingActions</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>574</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">action</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">==</span><span class="WHIT"> </span><span class="NAME">MOVE_TO</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">pendingActions</span><span class="PUNC">[</span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">==</span><span class="WHIT"> </span><span class="NAME">MOVE_TO</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>575</span> </span><span class="WHIT"> </span><span class="NAME">pendingActions.splice</span><span class="PUNC">(</span><span class="NAME">i</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>576</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>577</span> </span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>578</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>579</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>580</span>
<span class='line'>581</span> </span><span class="WHIT"> </span><span class="COMM">// Lossy compression: ... drop all but the extreme y-values ...</span><span class="WHIT">
<span class='line'>582</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">pendingActions.length</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NUMB">2</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">opt_losslessOnly</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>583</span> </span><span class="WHIT"> </span><span class="COMM">// keep an initial moveTo, but drop all others.</span><span class="WHIT">
<span class='line'>584</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">startIdx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>585</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">pendingActions</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">==</span><span class="WHIT"> </span><span class="NAME">MOVE_TO</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="NAME">startIdx</span><span class="PUNC">++</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>586</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">minIdx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">maxIdx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>587</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">startIdx</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC"><</span><span class="WHIT"> </span><span class="NAME">pendingActions.length</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>588</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">action</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pendingActions</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>589</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">action</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">!=</span><span class="WHIT"> </span><span class="NAME">LINE_TO</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="KEYW">continue</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>590</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">minIdx</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">maxIdx</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>591</span> </span><span class="WHIT"> </span><span class="NAME">minIdx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>592</span> </span><span class="WHIT"> </span><span class="NAME">maxIdx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>593</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>594</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">y</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">action</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>595</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">y</span><span class="WHIT"> </span><span class="PUNC"><</span><span class="WHIT"> </span><span class="NAME">pendingActions</span><span class="PUNC">[</span><span class="NAME">minIdx</span><span class="PUNC">]</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>596</span> </span><span class="WHIT"> </span><span class="NAME">minIdx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>597</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">y</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NAME">pendingActions</span><span class="PUNC">[</span><span class="NAME">maxIdx</span><span class="PUNC">]</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>598</span> </span><span class="WHIT"> </span><span class="NAME">maxIdx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>599</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>600</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>601</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>602</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">minAction</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pendingActions</span><span class="PUNC">[</span><span class="NAME">minIdx</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>603</span> </span><span class="WHIT"> </span><span class="NAME">maxAction</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pendingActions</span><span class="PUNC">[</span><span class="NAME">maxIdx</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>604</span> </span><span class="WHIT"> </span><span class="NAME">pendingActions.splice</span><span class="PUNC">(</span><span class="NAME">startIdx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pendingActions.length</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NAME">startIdx</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>605</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">minIdx</span><span class="WHIT"> </span><span class="PUNC"><</span><span class="WHIT"> </span><span class="NAME">maxIdx</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>606</span> </span><span class="WHIT"> </span><span class="NAME">pendingActions.push</span><span class="PUNC">(</span><span class="NAME">minAction</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>607</span> </span><span class="WHIT"> </span><span class="NAME">pendingActions.push</span><span class="PUNC">(</span><span class="NAME">maxAction</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>608</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">minIdx</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NAME">maxIdx</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>609</span> </span><span class="WHIT"> </span><span class="NAME">pendingActions.push</span><span class="PUNC">(</span><span class="NAME">maxAction</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>610</span> </span><span class="WHIT"> </span><span class="NAME">pendingActions.push</span><span class="PUNC">(</span><span class="NAME">minAction</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>611</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>612</span> </span><span class="WHIT"> </span><span class="NAME">pendingActions.push</span><span class="PUNC">(</span><span class="NAME">minAction</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>613</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>614</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>615</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>616</span>
<span class='line'>617</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">flushActions</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">opt_noLossyCompression</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>618</span> </span><span class="WHIT"> </span><span class="NAME">compressActions</span><span class="PUNC">(</span><span class="NAME">opt_noLossyCompression</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>619</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">len</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pendingActions.length</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC"><</span><span class="WHIT"> </span><span class="NAME">len</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>620</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">action</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pendingActions</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>621</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">action</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">==</span><span class="WHIT"> </span><span class="NAME">LINE_TO</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>622</span> </span><span class="WHIT"> </span><span class="NAME">context.lineTo</span><span class="PUNC">(</span><span class="NAME">action</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">action</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>623</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">action</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">==</span><span class="WHIT"> </span><span class="NAME">MOVE_TO</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>624</span> </span><span class="WHIT"> </span><span class="NAME">context.moveTo</span><span class="PUNC">(</span><span class="NAME">action</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">action</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>625</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>626</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>627</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">pendingActions.length</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>628</span> </span><span class="WHIT"> </span><span class="NAME">lastFlushedX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pendingActions</span><span class="PUNC">[</span><span class="NAME">pendingActions.length</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>629</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>630</span> </span><span class="WHIT"> </span><span class="NAME">actionCount</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pendingActions.length</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>631</span> </span><span class="WHIT"> </span><span class="NAME">pendingActions</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>632</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>633</span>
<span class='line'>634</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">addAction</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">action</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>635</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">rx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">Math.round</span><span class="PUNC">(</span><span class="NAME">x</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>636</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">lastRoundedX</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">rx</span><span class="WHIT"> </span><span class="PUNC">!=</span><span class="WHIT"> </span><span class="NAME">lastRoundedX</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>637</span> </span><span class="WHIT"> </span><span class="COMM">// if there are large gaps on the x-axis, it's essential to keep the</span><span class="WHIT">
<span class='line'>638</span> </span><span class="WHIT"> </span><span class="COMM">// first and last point as well.</span><span class="WHIT">
<span class='line'>639</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">hasGapOnLeft</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">lastRoundedX</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NAME">lastFlushedX</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>640</span> </span><span class="WHIT"> </span><span class="NAME">hasGapOnRight</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">rx</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NAME">lastRoundedX</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>641</span> </span><span class="WHIT"> </span><span class="NAME">hasGap</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">hasGapOnLeft</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">hasGapOnRight</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>642</span> </span><span class="WHIT"> </span><span class="NAME">flushActions</span><span class="PUNC">(</span><span class="NAME">hasGap</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>643</span> </span><span class="WHIT"> </span><span class="NAME">lastRoundedX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">rx</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>644</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>645</span> </span><span class="WHIT"> </span><span class="NAME">pendingActions.push</span><span class="PUNC">(</span><span class="PUNC">[</span><span class="NAME">action</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>646</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>647</span>
<span class='line'>648</span> </span><span class="WHIT"> </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>649</span> </span><span class="WHIT"> </span><span class="NAME">moveTo</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>650</span> </span><span class="WHIT"> </span><span class="NAME">addAction</span><span class="PUNC">(</span><span class="NAME">MOVE_TO</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>651</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>652</span> </span><span class="WHIT"> </span><span class="NAME">lineTo</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>653</span> </span><span class="WHIT"> </span><span class="NAME">addAction</span><span class="PUNC">(</span><span class="NAME">LINE_TO</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>654</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>655</span>
<span class='line'>656</span> </span><span class="WHIT"> </span><span class="COMM">// for major operations like stroke/fill, we skip compression to ensure</span><span class="WHIT">
<span class='line'>657</span> </span><span class="WHIT"> </span><span class="COMM">// that there are no artifacts at the right edge.</span><span class="WHIT">
<span class='line'>658</span> </span><span class="WHIT"> </span><span class="NAME">stroke</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT"> </span><span class="NAME">flushActions</span><span class="PUNC">(</span><span class="KEYW">true</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">context.stroke</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>659</span> </span><span class="WHIT"> </span><span class="NAME">fill</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT"> </span><span class="NAME">flushActions</span><span class="PUNC">(</span><span class="KEYW">true</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">context.fill</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>660</span> </span><span class="WHIT"> </span><span class="NAME">beginPath</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT"> </span><span class="NAME">flushActions</span><span class="PUNC">(</span><span class="KEYW">true</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">context.beginPath</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>661</span> </span><span class="WHIT"> </span><span class="NAME">closePath</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT"> </span><span class="NAME">flushActions</span><span class="PUNC">(</span><span class="KEYW">true</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">context.closePath</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>662</span>
<span class='line'>663</span> </span><span class="WHIT"> </span><span class="NAME">_count</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT"> </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">actionCount</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>664</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>665</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>666</span>
<span class='line'>667</span> </span><span class="COMM">/**
<span class='line'>668</span> * Draws the shaded regions when "fillGraph" is set.
<span class='line'>669</span> * Not to be confused with high/low bands (historically misnamed errorBars).
<span class='line'>670</span> *
<span class='line'>671</span> * For stacked charts, it's more convenient to handle all the series
<span class='line'>672</span> * simultaneously. So this plotter plots all the points on the first series
<span class='line'>673</span> * it's asked to draw, then ignores all the other series.
<span class='line'>674</span> *
<span class='line'>675</span> * @private
<span class='line'>676</span> */</span><span class="WHIT">
<span class='line'>677</span> </span><span class="NAME">DygraphCanvasRenderer._fillPlotter</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>678</span> </span><span class="WHIT"> </span><span class="COMM">// Skip if we're drawing a single series for interactive highlight overlay.</span><span class="WHIT">
<span class='line'>679</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">e.singleSeriesName</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>680</span>
<span class='line'>681</span> </span><span class="WHIT"> </span><span class="COMM">// We'll handle all the series at once, not one-by-one.</span><span class="WHIT">
<span class='line'>682</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">e.seriesIndex</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>683</span>
<span class='line'>684</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">g</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.dygraph</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>685</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">setNames</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getLabels</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">.</span><span class="NAME">slice</span><span class="PUNC">(</span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// remove x-axis</span><span class="WHIT">
<span class='line'>686</span>
<span class='line'>687</span> </span><span class="WHIT"> </span><span class="COMM">// getLabels() includes names for invisible series, which are not included in</span><span class="WHIT">
<span class='line'>688</span> </span><span class="WHIT"> </span><span class="COMM">// allSeriesPoints. We remove those to make the two match.</span><span class="WHIT">
<span class='line'>689</span> </span><span class="WHIT"> </span><span class="COMM">// TODO(danvk): provide a simpler way to get this information.</span><span class="WHIT">
<span class='line'>690</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">setNames.length</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">>=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">--</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>691</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">g.visibility</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="NAME">setNames.splice</span><span class="PUNC">(</span><span class="NAME">i</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>692</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>693</span>
<span class='line'>694</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">anySeriesFilled</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">function</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>695</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC"><</span><span class="WHIT"> </span><span class="NAME">setNames.length</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>696</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">"fillGraph"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setNames</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>697</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>698</span> </span><span class="WHIT"> </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>699</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">)</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>700</span>
<span class='line'>701</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">anySeriesFilled</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>702</span>
<span class='line'>703</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">area</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.plotArea</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>704</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">sets</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.allSeriesPoints</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>705</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">setCount</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">sets.length</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>706</span>
<span class='line'>707</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">stackedGraph</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">"stackedGraph"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>708</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">colors</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getColors</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>709</span>
<span class='line'>710</span> </span><span class="WHIT"> </span><span class="COMM">// For stacked graphs, track the baseline for filling.</span><span class="WHIT">
<span class='line'>711</span> </span><span class="WHIT"> </span><span class="COMM">//</span><span class="WHIT">
<span class='line'>712</span> </span><span class="WHIT"> </span><span class="COMM">// The filled areas below graph lines are trapezoids with two</span><span class="WHIT">
<span class='line'>713</span> </span><span class="WHIT"> </span><span class="COMM">// vertical edges. The top edge is the line segment being drawn, and</span><span class="WHIT">
<span class='line'>714</span> </span><span class="WHIT"> </span><span class="COMM">// the baseline is the bottom edge. Each baseline corresponds to the</span><span class="WHIT">
<span class='line'>715</span> </span><span class="WHIT"> </span><span class="COMM">// top line segment from the previous stacked line. In the case of</span><span class="WHIT">
<span class='line'>716</span> </span><span class="WHIT"> </span><span class="COMM">// step plots, the trapezoids are rectangles.</span><span class="WHIT">
<span class='line'>717</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">baseline</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>718</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">currBaseline</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>719</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">prevStepPlot</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// for different line drawing modes (line/step) per series</span><span class="WHIT">
<span class='line'>720</span>
<span class='line'>721</span> </span><span class="WHIT"> </span><span class="COMM">// Helper function to trace a line back along the baseline.</span><span class="WHIT">
<span class='line'>722</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">traceBackPath</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">ctx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">baselineX</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">baselineY</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pathBack</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>723</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">baselineX</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">baselineY</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>724</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">stackedGraph</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>725</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pathBack.length</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">>=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">--</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>726</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">pt</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pathBack</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>727</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">pt</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pt</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>728</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>729</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>730</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>731</span>
<span class='line'>732</span> </span><span class="WHIT"> </span><span class="COMM">// process sets in reverse order (needed for stacked graphs)</span><span class="WHIT">
<span class='line'>733</span> </span><span class="WHIT"> </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">setIdx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">setCount</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">setIdx</span><span class="WHIT"> </span><span class="PUNC">>=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">setIdx</span><span class="PUNC">--</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>734</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ctx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.drawingContext</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>735</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">setNames</span><span class="PUNC">[</span><span class="NAME">setIdx</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>736</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">'fillGraph'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="KEYW">continue</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>737</span>
<span class='line'>738</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">fillAlpha</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getNumericOption</span><span class="PUNC">(</span><span class="STRN">'fillAlpha'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>739</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">stepPlot</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">'stepPlot'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>740</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">color</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">colors</span><span class="PUNC">[</span><span class="NAME">setIdx</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>741</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">axis</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">g.axisPropertiesForSeries</span><span class="PUNC">(</span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>742</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">axisY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">1.0</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">axis.minyval</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">axis.yscale</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>743</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">axisY</span><span class="WHIT"> </span><span class="PUNC"><</span><span class="WHIT"> </span><span class="NUMB">0.0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="NAME">axisY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0.0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>744</span> </span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">axisY</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NUMB">1.0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="NAME">axisY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">1.0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>745</span> </span><span class="WHIT"> </span><span class="NAME">axisY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">area.h</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">axisY</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">area.y</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>746</span>
<span class='line'>747</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">points</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">sets</span><span class="PUNC">[</span><span class="NAME">setIdx</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>748</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">iter</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.createIterator</span><span class="PUNC">(</span><span class="NAME">points</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">points.length</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>749</span> </span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer._getIteratorPredicate</span><span class="PUNC">(</span><span class="WHIT">
<span class='line'>750</span> </span><span class="WHIT"> </span><span class="NAME">g.getBooleanOption</span><span class="PUNC">(</span><span class="STRN">"connectSeparatedPoints"</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">setName</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>751</span>
<span class='line'>752</span> </span><span class="WHIT"> </span><span class="COMM">// setup graphics context</span><span class="WHIT">
<span class='line'>753</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">prevX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">NaN</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>754</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">prevYs</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>755</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>756</span> </span><span class="WHIT"> </span><span class="COMM">// should be same color as the lines but only 15% opaque.</span><span class="WHIT">
<span class='line'>757</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">rgb</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">utils.toRGB_</span><span class="PUNC">(</span><span class="NAME">color</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>758</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">err_color</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT">
<span class='line'>759</span> </span><span class="WHIT"> </span><span class="STRN">'rgba('</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">rgb.r</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">','</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">rgb.g</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">','</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">rgb.b</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">','</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">fillAlpha</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">')'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>760</span> </span><span class="WHIT"> </span><span class="NAME">ctx.fillStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">err_color</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>761</span> </span><span class="WHIT"> </span><span class="NAME">ctx.beginPath</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>762</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">last_x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">is_first</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>763</span>
<span class='line'>764</span> </span><span class="WHIT"> </span><span class="COMM">// If the point density is high enough, dropping segments on their way to</span><span class="WHIT">
<span class='line'>765</span> </span><span class="WHIT"> </span><span class="COMM">// the canvas justifies the overhead of doing so.</span><span class="WHIT">
<span class='line'>766</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">points.length</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NUMB">2</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">g.width_</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">Dygraph.FORCE_FAST_PROXY</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>767</span> </span><span class="WHIT"> </span><span class="NAME">ctx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer._fastCanvasProxy</span><span class="PUNC">(</span><span class="NAME">ctx</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>768</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>769</span>
<span class='line'>770</span> </span><span class="WHIT"> </span><span class="COMM">// For filled charts, we draw points from left to right, then back along</span><span class="WHIT">
<span class='line'>771</span> </span><span class="WHIT"> </span><span class="COMM">// the x-axis to complete a shape for filling.</span><span class="WHIT">
<span class='line'>772</span> </span><span class="WHIT"> </span><span class="COMM">// For stacked plots, this "back path" is a more complex shape. This array</span><span class="WHIT">
<span class='line'>773</span> </span><span class="WHIT"> </span><span class="COMM">// stores the [x, y] values needed to trace that shape.</span><span class="WHIT">
<span class='line'>774</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">pathBack</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>775</span>
<span class='line'>776</span> </span><span class="WHIT"> </span><span class="COMM">// TODO(danvk): there are a lot of options at play in this loop.</span><span class="WHIT">
<span class='line'>777</span> </span><span class="WHIT"> </span><span class="COMM">// The logic would be much clearer if some (e.g. stackGraph and</span><span class="WHIT">
<span class='line'>778</span> </span><span class="WHIT"> </span><span class="COMM">// stepPlot) were split off into separate sub-plotters.</span><span class="WHIT">
<span class='line'>779</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">point</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>780</span> </span><span class="WHIT"> </span><span class="KEYW">while</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">iter.hasNext</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>781</span> </span><span class="WHIT"> </span><span class="NAME">point</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">iter.next</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>782</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">utils.isOK</span><span class="PUNC">(</span><span class="NAME">point.y</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">stepPlot</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>783</span> </span><span class="WHIT"> </span><span class="NAME">traceBackPath</span><span class="PUNC">(</span><span class="NAME">ctx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevX</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevYs</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pathBack</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>784</span> </span><span class="WHIT"> </span><span class="NAME">pathBack</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>785</span> </span><span class="WHIT"> </span><span class="NAME">prevX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">NaN</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>786</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">point.y_stacked</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">point.y_stacked</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>787</span> </span><span class="WHIT"> </span><span class="NAME">baseline</span><span class="PUNC">[</span><span class="NAME">point.canvasx</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">area.h</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">point.y_stacked</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">area.y</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>788</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>789</span> </span><span class="WHIT"> </span><span class="KEYW">continue</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>790</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>791</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">stackedGraph</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>792</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">is_first</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">last_x</span><span class="WHIT"> </span><span class="PUNC">==</span><span class="WHIT"> </span><span class="NAME">point.xval</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>793</span> </span><span class="WHIT"> </span><span class="KEYW">continue</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>794</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>795</span> </span><span class="WHIT"> </span><span class="NAME">is_first</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>796</span> </span><span class="WHIT"> </span><span class="NAME">last_x</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">point.xval</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>797</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>798</span>
<span class='line'>799</span> </span><span class="WHIT"> </span><span class="NAME">currBaseline</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">baseline</span><span class="PUNC">[</span><span class="NAME">point.canvasx</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>800</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">lastY</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>801</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">currBaseline</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">undefined</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>802</span> </span><span class="WHIT"> </span><span class="NAME">lastY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">axisY</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>803</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>804</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="PUNC">(</span><span class="NAME">prevStepPlot</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>805</span> </span><span class="WHIT"> </span><span class="NAME">lastY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">currBaseline</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>806</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>807</span> </span><span class="WHIT"> </span><span class="NAME">lastY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">currBaseline</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>808</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>809</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>810</span> </span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="WHIT"> </span><span class="NAME">point.canvasy</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">lastY</span><span class="WHIT"> </span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>811</span>
<span class='line'>812</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">stepPlot</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>813</span> </span><span class="WHIT"> </span><span class="COMM">// Step plots must keep track of the top and bottom of</span><span class="WHIT">
<span class='line'>814</span> </span><span class="WHIT"> </span><span class="COMM">// the baseline at each point.</span><span class="WHIT">
<span class='line'>815</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">prevYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>816</span> </span><span class="WHIT"> </span><span class="NAME">baseline</span><span class="PUNC">[</span><span class="NAME">point.canvasx</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="WHIT"> </span><span class="NAME">point.canvasy</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">axisY</span><span class="WHIT"> </span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>817</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>818</span> </span><span class="WHIT"> </span><span class="NAME">baseline</span><span class="PUNC">[</span><span class="NAME">point.canvasx</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="WHIT"> </span><span class="NAME">point.canvasy</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>819</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>820</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>821</span> </span><span class="WHIT"> </span><span class="NAME">baseline</span><span class="PUNC">[</span><span class="NAME">point.canvasx</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">point.canvasy</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>822</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>823</span>
<span class='line'>824</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>825</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">point.canvasy</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">stepPlot</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>826</span> </span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="WHIT"> </span><span class="NAME">area.y</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">area.h</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">axisY</span><span class="WHIT"> </span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>827</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>828</span> </span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="WHIT"> </span><span class="NAME">point.canvasy</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">axisY</span><span class="WHIT"> </span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>829</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>830</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>831</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">prevX</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>832</span> </span><span class="WHIT"> </span><span class="COMM">// Move to top fill point</span><span class="WHIT">
<span class='line'>833</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">stepPlot</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>834</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>835</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>836</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>837</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>838</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>839</span>
<span class='line'>840</span> </span><span class="WHIT"> </span><span class="COMM">// Record the baseline for the reverse path.</span><span class="WHIT">
<span class='line'>841</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">stackedGraph</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>842</span> </span><span class="WHIT"> </span><span class="NAME">pathBack.push</span><span class="PUNC">(</span><span class="PUNC">[</span><span class="NAME">prevX</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevYs</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>843</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">prevStepPlot</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">currBaseline</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>844</span> </span><span class="WHIT"> </span><span class="COMM">// Draw to the bottom of the baseline</span><span class="WHIT">
<span class='line'>845</span> </span><span class="WHIT"> </span><span class="NAME">pathBack.push</span><span class="PUNC">(</span><span class="PUNC">[</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">currBaseline</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>846</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>847</span> </span><span class="WHIT"> </span><span class="NAME">pathBack.push</span><span class="PUNC">(</span><span class="PUNC">[</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>848</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>849</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>850</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>851</span> </span><span class="WHIT"> </span><span class="NAME">ctx.moveTo</span><span class="PUNC">(</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>852</span> </span><span class="WHIT"> </span><span class="NAME">ctx.lineTo</span><span class="PUNC">(</span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>853</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>854</span> </span><span class="WHIT"> </span><span class="NAME">prevYs</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>855</span> </span><span class="WHIT"> </span><span class="NAME">prevX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">point.canvasx</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>856</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>857</span> </span><span class="WHIT"> </span><span class="NAME">prevStepPlot</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">stepPlot</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>858</span> </span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">newYs</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">point</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>859</span> </span><span class="WHIT"> </span><span class="NAME">traceBackPath</span><span class="PUNC">(</span><span class="NAME">ctx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">point.canvasx</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">newYs</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pathBack</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>860</span> </span><span class="WHIT"> </span><span class="NAME">pathBack</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>861</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>862</span> </span><span class="WHIT"> </span><span class="NAME">ctx.fill</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>863</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>864</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>865</span>
<span class='line'>866</span> </span><span class="NAME">export</span><span class="WHIT"> </span><span class="KEYW">default</span><span class="WHIT"> </span><span class="NAME">DygraphCanvasRenderer</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>867</span> </span></pre></body></html>