[77] | 1 | /** |
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| 2 | * o------------------------------------------------------------------------------o |
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| 3 | * | This file is part of the RGraph package - you can learn more at: | |
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| 4 | * | | |
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| 5 | * | http://www.rgraph.net | |
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| 6 | * | | |
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| 7 | * | This package is licensed under the RGraph license. For all kinds of business | |
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| 8 | * | purposes there is a small one-time licensing fee to pay and for non | |
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| 9 | * | commercial purposes it is free to use. You can read the full license here: | |
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| 10 | * | | |
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| 11 | * | http://www.rgraph.net/LICENSE.txt | |
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| 12 | * o------------------------------------------------------------------------------o |
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| 13 | */ |
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| 14 | |
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| 15 | if (typeof(RGraph) == 'undefined') RGraph = {}; |
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| 16 | |
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| 17 | /** |
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| 18 | * The line chart constructor |
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| 19 | * |
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| 20 | * @param object canvas The cxanvas object |
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| 21 | * @param array data The chart data |
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| 22 | * @param array ... Other lines to plot |
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| 23 | */ |
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| 24 | RGraph.Line = function (id) |
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| 25 | { |
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| 26 | // Get the canvas and context objects |
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| 27 | this.id = id; |
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| 28 | this.canvas = document.getElementById(id); |
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| 29 | this.context = this.canvas.getContext ? this.canvas.getContext("2d") : null; |
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| 30 | this.canvas.__object__ = this; |
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| 31 | this.type = 'line'; |
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| 32 | this.max = 0; |
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| 33 | this.coords = []; |
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| 34 | this.coords2 = []; |
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| 35 | this.coords.key = []; |
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| 36 | this.hasnegativevalues = false; |
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| 37 | this.isRGraph = true; |
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| 38 | |
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| 39 | |
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| 40 | |
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| 41 | /** |
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| 42 | * Compatibility with older browsers |
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| 43 | */ |
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| 44 | RGraph.OldBrowserCompat(this.context); |
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| 45 | |
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| 46 | |
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| 47 | // Various config type stuff |
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| 48 | this.properties = { |
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| 49 | 'chart.background.barcolor1': 'rgba(0,0,0,0)', |
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| 50 | 'chart.background.barcolor2': 'rgba(0,0,0,0)', |
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| 51 | 'chart.background.grid': 1, |
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| 52 | 'chart.background.grid.width': 1, |
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| 53 | 'chart.background.grid.hsize': 25, |
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| 54 | 'chart.background.grid.vsize': 25, |
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| 55 | 'chart.background.grid.color': '#ddd', |
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| 56 | 'chart.background.grid.vlines': true, |
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| 57 | 'chart.background.grid.hlines': true, |
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| 58 | 'chart.background.grid.border': true, |
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| 59 | 'chart.background.grid.autofit': false, |
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| 60 | 'chart.background.grid.autofit.align': false, |
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| 61 | 'chart.background.grid.autofit.numhlines': 7, |
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| 62 | 'chart.background.grid.autofit.numvlines': 20, |
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| 63 | 'chart.background.hbars': null, |
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| 64 | 'chart.background.image': null, |
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| 65 | 'chart.labels': null, |
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| 66 | 'chart.labels.ingraph': null, |
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| 67 | 'chart.labels.above': false, |
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| 68 | 'chart.labels.above.size': 8, |
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| 69 | 'chart.xtickgap': 20, |
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| 70 | 'chart.smallxticks': 3, |
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| 71 | 'chart.largexticks': 5, |
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| 72 | 'chart.ytickgap': 20, |
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| 73 | 'chart.smallyticks': 3, |
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| 74 | 'chart.largeyticks': 5, |
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| 75 | 'chart.linewidth': 1.01, |
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| 76 | 'chart.colors': ['red', '#0f0', '#00f', '#f0f', '#ff0', '#0ff'], |
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| 77 | 'chart.hmargin': 0, |
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| 78 | 'chart.tickmarks.dot.color': 'white', |
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| 79 | 'chart.tickmarks': null, |
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| 80 | 'chart.tickmarks.linewidth': null, |
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| 81 | 'chart.ticksize': 3, |
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| 82 | 'chart.gutter.left': 25, |
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| 83 | 'chart.gutter.right': 25, |
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| 84 | 'chart.gutter.top': 25, |
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| 85 | 'chart.gutter.bottom': 25, |
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| 86 | 'chart.tickdirection': -1, |
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| 87 | 'chart.yaxispoints': 5, |
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| 88 | 'chart.fillstyle': null, |
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| 89 | 'chart.xaxispos': 'bottom', |
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| 90 | 'chart.yaxispos': 'left', |
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| 91 | 'chart.xticks': null, |
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| 92 | 'chart.text.size': 10, |
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| 93 | 'chart.text.angle': 0, |
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| 94 | 'chart.text.color': 'black', |
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| 95 | 'chart.text.font': 'Verdana', |
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| 96 | 'chart.ymin': null, |
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| 97 | 'chart.ymax': null, |
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| 98 | 'chart.title': '', |
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| 99 | 'chart.title.background': null, |
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| 100 | 'chart.title.hpos': null, |
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| 101 | 'chart.title.vpos': 0.5, |
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| 102 | 'chart.title.xaxis': '', |
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| 103 | 'chart.title.yaxis': '', |
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| 104 | 'chart.title.xaxis.pos': 0.25, |
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| 105 | 'chart.title.yaxis.pos': 0.25, |
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| 106 | 'chart.shadow': false, |
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| 107 | 'chart.shadow.offsetx': 2, |
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| 108 | 'chart.shadow.offsety': 2, |
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| 109 | 'chart.shadow.blur': 3, |
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| 110 | 'chart.shadow.color': 'rgba(0,0,0,0.5)', |
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| 111 | 'chart.tooltips': null, |
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| 112 | 'chart.tooltips.effect': 'fade', |
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| 113 | 'chart.tooltips.css.class': 'RGraph_tooltip', |
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| 114 | 'chart.tooltips.highlight': true, |
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| 115 | 'chart.highlight.stroke': '#999', |
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| 116 | 'chart.highlight.fill': 'white', |
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| 117 | 'chart.stepped': false, |
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| 118 | 'chart.key': [], |
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| 119 | 'chart.key.background': 'white', |
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| 120 | 'chart.key.position': 'graph', |
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| 121 | 'chart.key.halign': null, |
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| 122 | 'chart.key.shadow': false, |
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| 123 | 'chart.key.shadow.color': '#666', |
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| 124 | 'chart.key.shadow.blur': 3, |
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| 125 | 'chart.key.shadow.offsetx': 2, |
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| 126 | 'chart.key.shadow.offsety': 2, |
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| 127 | 'chart.key.position.gutter.boxed': true, |
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| 128 | 'chart.key.position.x': null, |
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| 129 | 'chart.key.position.y': null, |
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| 130 | 'chart.key.color.shape': 'square', |
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| 131 | 'chart.key.rounded': true, |
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| 132 | 'chart.key.linewidth': 1, |
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| 133 | 'chart.key.interactive': false, |
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| 134 | 'chart.contextmenu': null, |
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| 135 | 'chart.ylabels': true, |
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| 136 | 'chart.ylabels.count': 5, |
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| 137 | 'chart.ylabels.inside': false, |
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| 138 | 'chart.ylabels.invert': false, |
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| 139 | 'chart.xlabels.inside': false, |
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| 140 | 'chart.xlabels.inside.color': 'rgba(255,255,255,0.5)', |
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| 141 | 'chart.noaxes': false, |
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| 142 | 'chart.noyaxis': false, |
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| 143 | 'chart.noxaxis': false, |
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| 144 | 'chart.noendxtick': false, |
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| 145 | 'chart.units.post': '', |
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| 146 | 'chart.units.pre': '', |
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| 147 | 'chart.scale.decimals': null, |
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| 148 | 'chart.scale.point': '.', |
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| 149 | 'chart.scale.thousand': ',', |
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| 150 | 'chart.crosshairs': false, |
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| 151 | 'chart.crosshairs.color': '#333', |
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| 152 | 'chart.annotatable': false, |
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| 153 | 'chart.annotate.color': 'black', |
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| 154 | 'chart.axesontop': false, |
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| 155 | 'chart.filled': false, |
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| 156 | 'chart.filled.range': false, |
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| 157 | 'chart.filled.accumulative': true, |
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| 158 | 'chart.variant': null, |
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| 159 | 'chart.axis.color': 'black', |
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| 160 | 'chart.zoom.factor': 1.5, |
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| 161 | 'chart.zoom.fade.in': true, |
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| 162 | 'chart.zoom.fade.out': true, |
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| 163 | 'chart.zoom.hdir': 'right', |
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| 164 | 'chart.zoom.vdir': 'down', |
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| 165 | 'chart.zoom.frames': 15, |
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| 166 | 'chart.zoom.delay': 33, |
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| 167 | 'chart.zoom.shadow': true, |
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| 168 | 'chart.zoom.mode': 'canvas', |
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| 169 | 'chart.zoom.thumbnail.width': 75, |
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| 170 | 'chart.zoom.thumbnail.height': 75, |
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| 171 | 'chart.zoom.background': true, |
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| 172 | 'chart.zoom.action': 'zoom', |
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| 173 | 'chart.backdrop': false, |
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| 174 | 'chart.backdrop.size': 30, |
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| 175 | 'chart.backdrop.alpha': 0.2, |
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| 176 | 'chart.resizable': false, |
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| 177 | 'chart.resize.handle.adjust': [0,0], |
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| 178 | 'chart.resize.handle.background': null, |
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| 179 | 'chart.adjustable': false, |
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| 180 | 'chart.noredraw': false, |
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| 181 | 'chart.outofbounds': false, |
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| 182 | 'chart.chromefix': true, |
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| 183 | 'chart.draw.delegate': null |
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| 184 | } |
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| 185 | |
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| 186 | /** |
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| 187 | * Change null arguments to empty arrays |
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| 188 | */ |
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| 189 | for (var i=1; i<arguments.length; ++i) { |
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| 190 | if (typeof(arguments[i]) == 'null' || !arguments[i]) { |
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| 191 | arguments[i] = []; |
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| 192 | } |
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| 193 | } |
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| 194 | |
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| 195 | |
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| 196 | /** |
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| 197 | * Store the original data. Thiss also allows for giving arguments as one big array. |
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| 198 | */ |
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| 199 | this.original_data = []; |
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| 200 | |
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| 201 | for (var i=1; i<arguments.length; ++i) { |
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| 202 | if (arguments[1] && typeof(arguments[1]) == 'object' && arguments[1][0] && typeof(arguments[1][0]) == 'object' && arguments[1][0].length) { |
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| 203 | |
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| 204 | var tmp = []; |
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| 205 | |
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| 206 | for (var i=0; i<arguments[1].length; ++i) { |
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| 207 | tmp[i] = RGraph.array_clone(arguments[1][i]); |
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| 208 | } |
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| 209 | |
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| 210 | for (var j=0; j<tmp.length; ++j) { |
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| 211 | this.original_data[j] = RGraph.array_clone(tmp[j]); |
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| 212 | } |
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| 213 | |
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| 214 | } else { |
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| 215 | this.original_data[i - 1] = RGraph.array_clone(arguments[i]); |
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| 216 | } |
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| 217 | } |
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| 218 | |
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| 219 | // Check for support |
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| 220 | if (!this.canvas) { |
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| 221 | alert('[LINE] Fatal error: no canvas support'); |
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| 222 | return; |
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| 223 | } |
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| 224 | |
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| 225 | /** |
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| 226 | * Store the data here as one big array |
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| 227 | */ |
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| 228 | this.data_arr = []; |
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| 229 | |
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| 230 | for (var i=1; i<arguments.length; ++i) { |
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| 231 | for (var j=0; j<arguments[i].length; ++j) { |
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| 232 | this.data_arr.push(arguments[i][j]); |
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| 233 | } |
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| 234 | } |
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| 235 | |
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| 236 | |
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| 237 | /** |
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| 238 | * Set the .getShape commonly named method |
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| 239 | */ |
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| 240 | this.getShape = this.getPoint; |
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| 241 | } |
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| 242 | |
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| 243 | |
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| 244 | /** |
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| 245 | * An all encompassing accessor |
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| 246 | * |
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| 247 | * @param string name The name of the property |
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| 248 | * @param mixed value The value of the property |
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| 249 | */ |
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| 250 | RGraph.Line.prototype.Set = function (name, value) |
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| 251 | { |
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| 252 | // Consolidate the tooltips |
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| 253 | if (name == 'chart.tooltips') { |
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| 254 | |
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| 255 | var tooltips = []; |
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| 256 | |
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| 257 | for (var i=1; i<arguments.length; i++) { |
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| 258 | if (typeof(arguments[i]) == 'object' && arguments[i][0]) { |
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| 259 | for (var j=0; j<arguments[i].length; j++) { |
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| 260 | tooltips.push(arguments[i][j]); |
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| 261 | } |
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| 262 | |
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| 263 | } else if (typeof(arguments[i]) == 'function') { |
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| 264 | tooltips = arguments[i]; |
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| 265 | |
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| 266 | } else { |
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| 267 | tooltips.push(arguments[i]); |
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| 268 | } |
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| 269 | } |
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| 270 | |
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| 271 | // Because "value" is used further down at the end of this function, set it to the expanded array os tooltips |
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| 272 | value = tooltips; |
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| 273 | } |
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| 274 | |
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| 275 | /** |
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| 276 | * Reverse the tickmarks to make them correspond to the right line |
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| 277 | */ |
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| 278 | if (name == 'chart.tickmarks' && typeof(value) == 'object' && value) { |
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| 279 | value = RGraph.array_reverse(value); |
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| 280 | } |
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| 281 | |
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| 282 | /** |
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| 283 | * Inverted Y axis should show the bottom end of the scale |
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| 284 | */ |
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| 285 | if (name == 'chart.ylabels.invert' && value && this.Get('chart.ymin') == null) { |
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| 286 | this.Set('chart.ymin', 0); |
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| 287 | } |
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| 288 | |
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| 289 | /** |
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| 290 | * If (buggy) Chrome and the linewidth is 1, change it to 1.01 |
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| 291 | */ |
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| 292 | if (name == 'chart.linewidth' && navigator.userAgent.match(/Chrome/)) { |
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| 293 | if (value == 1) { |
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| 294 | value = 1.01; |
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| 295 | |
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| 296 | } else if (RGraph.is_array(value)) { |
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| 297 | for (var i=0; i<value.length; ++i) { |
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| 298 | if (typeof(value[i]) == 'number' && value[i] == 1) { |
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| 299 | value[i] = 1.01; |
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| 300 | } |
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| 301 | } |
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| 302 | } |
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| 303 | } |
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| 304 | |
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| 305 | /** |
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| 306 | * Check for xaxispos |
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| 307 | */ |
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| 308 | if (name == 'chart.xaxispos' ) { |
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| 309 | if (value != 'bottom' && value != 'center' && value != 'top') { |
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| 310 | alert('[LINE] (' + this.id + ') chart.xaxispos should be top, center or bottom. Tried to set it to: ' + value + ' Changing it to center'); |
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| 311 | value = 'center'; |
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| 312 | } |
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| 313 | } |
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| 314 | |
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| 315 | this.properties[name] = value; |
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| 316 | } |
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| 317 | |
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| 318 | |
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| 319 | /** |
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| 320 | * An all encompassing accessor |
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| 321 | * |
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| 322 | * @param string name The name of the property |
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| 323 | */ |
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| 324 | RGraph.Line.prototype.Get = function (name) |
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| 325 | { |
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| 326 | return this.properties[name]; |
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| 327 | } |
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| 328 | |
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| 329 | |
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| 330 | /** |
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| 331 | * The function you call to draw the line chart |
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| 332 | */ |
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| 333 | RGraph.Line.prototype.Draw = function () |
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| 334 | { |
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| 335 | // MUST be the first thing done! |
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| 336 | if (typeof(this.Get('chart.background.image')) == 'string' && !this.__background_image__) { |
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| 337 | RGraph.DrawBackgroundImage(this); |
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| 338 | return; |
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| 339 | } |
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| 340 | |
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| 341 | /** |
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| 342 | * Fire the onbeforedraw event |
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| 343 | */ |
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| 344 | RGraph.FireCustomEvent(this, 'onbeforedraw'); |
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| 345 | |
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| 346 | /** |
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| 347 | * Clear all of this canvases event handlers (the ones installed by RGraph) |
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| 348 | */ |
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| 349 | RGraph.ClearEventListeners(this.id); |
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| 350 | |
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| 351 | /** |
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| 352 | * This is new in May 2011 and facilitates indiviual gutter settings, |
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| 353 | * eg chart.gutter.left |
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| 354 | */ |
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| 355 | this.gutterLeft = this.Get('chart.gutter.left'); |
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| 356 | this.gutterRight = this.Get('chart.gutter.right'); |
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| 357 | this.gutterTop = this.Get('chart.gutter.top'); |
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| 358 | this.gutterBottom = this.Get('chart.gutter.bottom'); |
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| 359 | |
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| 360 | |
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| 361 | /** |
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| 362 | * Check for Chrome 6 and shadow |
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| 363 | * |
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| 364 | * TODO Remove once it's been fixed (for a while) |
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| 365 | * SEARCH TAGS: CHROME FIX SHADOW BUG |
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| 366 | */ |
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| 367 | if ( this.Get('chart.shadow') |
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| 368 | && navigator.userAgent.match(/Chrome/) |
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| 369 | && this.Get('chart.linewidth') <= 1 |
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| 370 | && this.Get('chart.chromefix') |
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| 371 | && this.Get('chart.shadow.blur') > 0) { |
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| 372 | alert('[RGRAPH WARNING] Chrome has a shadow bug, meaning you should increase the linewidth to at least 1.01'); |
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| 373 | } |
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| 374 | |
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| 375 | |
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| 376 | // Reset the data back to that which was initially supplied |
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| 377 | this.data = RGraph.array_clone(this.original_data); |
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| 378 | |
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| 379 | |
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| 380 | // Reset the max value |
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| 381 | this.max = 0; |
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| 382 | |
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| 383 | /** |
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| 384 | * Reverse the datasets so that the data and the labels tally |
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| 385 | */ |
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| 386 | this.data = RGraph.array_reverse(this.data); |
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| 387 | |
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| 388 | if (this.Get('chart.filled') && !this.Get('chart.filled.range') && this.data.length > 1 && this.Get('chart.filled.accumulative')) { |
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| 389 | |
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| 390 | var accumulation = []; |
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| 391 | |
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| 392 | for (var set=0; set<this.data.length; ++set) { |
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| 393 | for (var point=0; point<this.data[set].length; ++point) { |
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| 394 | this.data[set][point] = Number(accumulation[point] ? accumulation[point] : 0) + this.data[set][point]; |
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| 395 | accumulation[point] = this.data[set][point]; |
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| 396 | } |
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| 397 | } |
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| 398 | } |
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| 399 | |
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| 400 | /** |
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| 401 | * Get the maximum Y scale value |
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| 402 | */ |
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| 403 | if (this.Get('chart.ymax')) { |
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| 404 | |
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| 405 | this.max = this.Get('chart.ymax'); |
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| 406 | this.min = this.Get('chart.ymin') ? this.Get('chart.ymin') : 0; |
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| 407 | |
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| 408 | this.scale = [ |
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| 409 | ( ((this.max - this.min) * (1/5)) + this.min).toFixed(this.Get('chart.scale.decimals')), |
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| 410 | ( ((this.max - this.min) * (2/5)) + this.min).toFixed(this.Get('chart.scale.decimals')), |
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| 411 | ( ((this.max - this.min) * (3/5)) + this.min).toFixed(this.Get('chart.scale.decimals')), |
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| 412 | ( ((this.max - this.min) * (4/5)) + this.min).toFixed(this.Get('chart.scale.decimals')), |
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| 413 | this.max.toFixed(this.Get('chart.scale.decimals')) |
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| 414 | ]; |
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| 415 | |
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| 416 | // Check for negative values |
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| 417 | if (!this.Get('chart.outofbounds')) { |
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| 418 | for (dataset=0; dataset<this.data.length; ++dataset) { |
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| 419 | for (var datapoint=0; datapoint<this.data[dataset].length; datapoint++) { |
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| 420 | |
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| 421 | // Check for negative values |
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| 422 | this.hasnegativevalues = (this.data[dataset][datapoint] < 0) || this.hasnegativevalues; |
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| 423 | } |
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| 424 | } |
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| 425 | } |
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| 426 | |
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| 427 | } else { |
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| 428 | |
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| 429 | this.min = this.Get('chart.ymin') ? this.Get('chart.ymin') : 0; |
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| 430 | |
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| 431 | // Work out the max Y value |
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| 432 | for (dataset=0; dataset<this.data.length; ++dataset) { |
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| 433 | for (var datapoint=0; datapoint<this.data[dataset].length; datapoint++) { |
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| 434 | |
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| 435 | this.max = Math.max(this.max, this.data[dataset][datapoint] ? Math.abs(parseFloat(this.data[dataset][datapoint])) : 0); |
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| 436 | |
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| 437 | // Check for negative values |
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| 438 | if (!this.Get('chart.outofbounds')) { |
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| 439 | this.hasnegativevalues = (this.data[dataset][datapoint] < 0) || this.hasnegativevalues; |
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| 440 | } |
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| 441 | } |
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| 442 | } |
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| 443 | |
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| 444 | // 20th April 2009 - moved out of the above loop |
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| 445 | this.scale = RGraph.getScale(Math.abs(parseFloat(this.max)), this); |
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| 446 | this.max = this.scale[4] ? this.scale[4] : 0; |
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| 447 | |
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| 448 | if (this.Get('chart.ymin')) { |
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| 449 | this.scale[0] = ((this.max - this.Get('chart.ymin')) * (1/5)) + this.Get('chart.ymin'); |
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| 450 | this.scale[1] = ((this.max - this.Get('chart.ymin')) * (2/5)) + this.Get('chart.ymin'); |
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| 451 | this.scale[2] = ((this.max - this.Get('chart.ymin')) * (3/5)) + this.Get('chart.ymin'); |
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| 452 | this.scale[3] = ((this.max - this.Get('chart.ymin')) * (4/5)) + this.Get('chart.ymin'); |
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| 453 | this.scale[4] = ((this.max - this.Get('chart.ymin')) * (5/5)) + this.Get('chart.ymin'); |
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| 454 | } |
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| 455 | |
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| 456 | if (typeof(this.Get('chart.scale.decimals')) == 'number') { |
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| 457 | this.scale[0] = Number(this.scale[0]).toFixed(this.Get('chart.scale.decimals')); |
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| 458 | this.scale[1] = Number(this.scale[1]).toFixed(this.Get('chart.scale.decimals')); |
---|
| 459 | this.scale[2] = Number(this.scale[2]).toFixed(this.Get('chart.scale.decimals')); |
---|
| 460 | this.scale[3] = Number(this.scale[3]).toFixed(this.Get('chart.scale.decimals')); |
---|
| 461 | this.scale[4] = Number(this.scale[4]).toFixed(this.Get('chart.scale.decimals')); |
---|
| 462 | } |
---|
| 463 | } |
---|
| 464 | |
---|
| 465 | /** |
---|
| 466 | * Setup the context menu if required |
---|
| 467 | */ |
---|
| 468 | if (this.Get('chart.contextmenu')) { |
---|
| 469 | RGraph.ShowContext(this); |
---|
| 470 | } |
---|
| 471 | |
---|
| 472 | /** |
---|
| 473 | * Reset the coords array otherwise it will keep growing |
---|
| 474 | */ |
---|
| 475 | this.coords = []; |
---|
| 476 | |
---|
| 477 | /** |
---|
| 478 | * Work out a few things. They need to be here because they depend on things you can change before you |
---|
| 479 | * call Draw() but after you instantiate the object |
---|
| 480 | */ |
---|
| 481 | this.grapharea = RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom; |
---|
| 482 | this.halfgrapharea = this.grapharea / 2; |
---|
| 483 | this.halfTextHeight = this.Get('chart.text.size') / 2; |
---|
| 484 | |
---|
| 485 | // Check the combination of the X axis position and if there any negative values |
---|
| 486 | // |
---|
| 487 | // 19th Dec 2010 - removed for Opera since it can be reported incorrectly whn there |
---|
| 488 | // are multiple graphs on the page |
---|
| 489 | if (this.Get('chart.xaxispos') == 'bottom' && this.hasnegativevalues && navigator.userAgent.indexOf('Opera') == -1) { |
---|
| 490 | alert('[LINE] You have negative values and the X axis is at the bottom. This is not good...'); |
---|
| 491 | } |
---|
| 492 | |
---|
| 493 | if (this.Get('chart.variant') == '3d') { |
---|
| 494 | RGraph.Draw3DAxes(this); |
---|
| 495 | } |
---|
| 496 | |
---|
| 497 | // Progressively Draw the chart |
---|
| 498 | RGraph.background.Draw(this); |
---|
| 499 | |
---|
| 500 | /** |
---|
| 501 | * Draw any horizontal bars that have been defined |
---|
| 502 | */ |
---|
| 503 | if (this.Get('chart.background.hbars') && this.Get('chart.background.hbars').length > 0) { |
---|
| 504 | RGraph.DrawBars(this); |
---|
| 505 | } |
---|
| 506 | |
---|
| 507 | if (this.Get('chart.axesontop') == false) { |
---|
| 508 | this.DrawAxes(); |
---|
| 509 | } |
---|
| 510 | |
---|
| 511 | /** |
---|
| 512 | * Handle the appropriate shadow color. This now facilitates an array of differing |
---|
| 513 | * shadow colors |
---|
| 514 | */ |
---|
| 515 | var shadowColor = this.Get('chart.shadow.color'); |
---|
| 516 | |
---|
| 517 | if (typeof(shadowColor) == 'object') { |
---|
| 518 | shadowColor = RGraph.array_reverse(RGraph.array_clone(this.Get('chart.shadow.color'))); |
---|
| 519 | } |
---|
| 520 | |
---|
| 521 | |
---|
| 522 | for (var i=(this.data.length - 1), j=0; i>=0; i--, j++) { |
---|
| 523 | |
---|
| 524 | this.context.beginPath(); |
---|
| 525 | |
---|
| 526 | /** |
---|
| 527 | * Turn on the shadow if required |
---|
| 528 | */ |
---|
| 529 | if (this.Get('chart.shadow') && !this.Get('chart.filled')) { |
---|
| 530 | |
---|
| 531 | /** |
---|
| 532 | * Accommodate an array of shadow colors as well as a single string |
---|
| 533 | */ |
---|
| 534 | if (typeof(shadowColor) == 'object' && shadowColor[i - 1]) { |
---|
| 535 | this.context.shadowColor = shadowColor[i]; |
---|
| 536 | } else if (typeof(shadowColor) == 'object') { |
---|
| 537 | this.context.shadowColor = shadowColor[0]; |
---|
| 538 | } else if (typeof(shadowColor) == 'string') { |
---|
| 539 | this.context.shadowColor = shadowColor; |
---|
| 540 | } |
---|
| 541 | |
---|
| 542 | this.context.shadowBlur = this.Get('chart.shadow.blur'); |
---|
| 543 | this.context.shadowOffsetX = this.Get('chart.shadow.offsetx'); |
---|
| 544 | this.context.shadowOffsetY = this.Get('chart.shadow.offsety'); |
---|
| 545 | |
---|
| 546 | } else if (this.Get('chart.filled') && this.Get('chart.shadow')) { |
---|
| 547 | alert('[LINE] Shadows are not permitted when the line is filled'); |
---|
| 548 | } |
---|
| 549 | |
---|
| 550 | /** |
---|
| 551 | * Draw the line |
---|
| 552 | */ |
---|
| 553 | |
---|
| 554 | if (this.Get('chart.fillstyle')) { |
---|
| 555 | if (typeof(this.Get('chart.fillstyle')) == 'object' && this.Get('chart.fillstyle')[j]) { |
---|
| 556 | var fill = this.Get('chart.fillstyle')[j]; |
---|
| 557 | |
---|
| 558 | } else if (typeof(this.Get('chart.fillstyle')) == 'string') { |
---|
| 559 | var fill = this.Get('chart.fillstyle'); |
---|
| 560 | |
---|
| 561 | } else { |
---|
| 562 | alert('[LINE] Warning: chart.fillstyle must be either a string or an array with the same number of elements as you have sets of data'); |
---|
| 563 | } |
---|
| 564 | } else if (this.Get('chart.filled')) { |
---|
| 565 | var fill = this.Get('chart.colors')[j]; |
---|
| 566 | |
---|
| 567 | } else { |
---|
| 568 | var fill = null; |
---|
| 569 | } |
---|
| 570 | |
---|
| 571 | /** |
---|
| 572 | * Figure out the tickmark to use |
---|
| 573 | */ |
---|
| 574 | if (this.Get('chart.tickmarks') && typeof(this.Get('chart.tickmarks')) == 'object') { |
---|
| 575 | var tickmarks = this.Get('chart.tickmarks')[i]; |
---|
| 576 | } else if (this.Get('chart.tickmarks') && typeof(this.Get('chart.tickmarks')) == 'string') { |
---|
| 577 | var tickmarks = this.Get('chart.tickmarks'); |
---|
| 578 | } else if (this.Get('chart.tickmarks') && typeof(this.Get('chart.tickmarks')) == 'function') { |
---|
| 579 | var tickmarks = this.Get('chart.tickmarks'); |
---|
| 580 | } else { |
---|
| 581 | var tickmarks = null; |
---|
| 582 | } |
---|
| 583 | |
---|
| 584 | |
---|
| 585 | this.DrawLine(this.data[i], |
---|
| 586 | this.Get('chart.colors')[j], |
---|
| 587 | fill, |
---|
| 588 | this.GetLineWidth(j), |
---|
| 589 | tickmarks, |
---|
| 590 | this.data.length - i - 1); |
---|
| 591 | |
---|
| 592 | this.context.stroke(); |
---|
| 593 | } |
---|
| 594 | |
---|
| 595 | |
---|
| 596 | |
---|
| 597 | |
---|
| 598 | |
---|
| 599 | |
---|
| 600 | |
---|
| 601 | |
---|
| 602 | |
---|
| 603 | |
---|
| 604 | |
---|
| 605 | |
---|
| 606 | |
---|
| 607 | /** |
---|
| 608 | * If tooltips are defined, handle them |
---|
| 609 | */ |
---|
| 610 | if (this.Get('chart.tooltips') && (this.Get('chart.tooltips').length || typeof(this.Get('chart.tooltips')) == 'function')) { |
---|
| 611 | |
---|
| 612 | // Need to register this object for redrawing |
---|
| 613 | if (this.Get('chart.tooltips.highlight')) { |
---|
| 614 | RGraph.Register(this); |
---|
| 615 | } |
---|
| 616 | |
---|
| 617 | canvas_onmousemove_func = function (e) |
---|
| 618 | { |
---|
| 619 | e = RGraph.FixEventObject(e); |
---|
| 620 | |
---|
| 621 | var canvas = e.target; |
---|
| 622 | var context = canvas.getContext('2d'); |
---|
| 623 | var obj = canvas.__object__; |
---|
| 624 | var point = obj.getPoint(e); |
---|
| 625 | |
---|
| 626 | if (obj.Get('chart.tooltips.highlight')) { |
---|
| 627 | RGraph.Register(obj); |
---|
| 628 | } |
---|
| 629 | |
---|
| 630 | if ( point |
---|
| 631 | && typeof(point[0]) == 'object' |
---|
| 632 | && typeof(point[1]) == 'number' |
---|
| 633 | && typeof(point[2]) == 'number' |
---|
| 634 | && typeof(point[3]) == 'number' |
---|
| 635 | ) { |
---|
| 636 | |
---|
| 637 | // point[0] is the graph object |
---|
| 638 | var xCoord = point[1]; |
---|
| 639 | var yCoord = point[2]; |
---|
| 640 | var idx = point[3]; |
---|
| 641 | |
---|
| 642 | if ((obj.Get('chart.tooltips')[idx] || typeof(obj.Get('chart.tooltips')) == 'function')) { |
---|
| 643 | |
---|
| 644 | // Get the tooltip text |
---|
| 645 | if (typeof(obj.Get('chart.tooltips')) == 'function') { |
---|
| 646 | var text = obj.Get('chart.tooltips')(idx); |
---|
| 647 | |
---|
| 648 | } else if (typeof(obj.Get('chart.tooltips')) == 'object' && typeof(obj.Get('chart.tooltips')[idx]) == 'function') { |
---|
| 649 | var text = obj.Get('chart.tooltips')[idx](idx); |
---|
| 650 | |
---|
| 651 | } else if (typeof(obj.Get('chart.tooltips')) == 'object') { |
---|
| 652 | var text = String(obj.Get('chart.tooltips')[idx]); |
---|
| 653 | } else { |
---|
| 654 | var text = ''; |
---|
| 655 | } |
---|
| 656 | |
---|
| 657 | |
---|
| 658 | // No tooltip text - do nada |
---|
| 659 | if (text.match(/^id:(.*)$/) && RGraph.getTooltipText(text).substring(0,3) == 'id:') { |
---|
| 660 | return; |
---|
| 661 | } |
---|
| 662 | |
---|
| 663 | // Chnage the pointer to a hand |
---|
| 664 | canvas.style.cursor = 'pointer'; |
---|
| 665 | |
---|
| 666 | /** |
---|
| 667 | * If the tooltip is the same one as is currently visible (going by the array index), don't do squat and return. |
---|
| 668 | */ |
---|
| 669 | if ( RGraph.Registry.Get('chart.tooltip') |
---|
| 670 | && RGraph.Registry.Get('chart.tooltip').__index__ == idx |
---|
| 671 | && RGraph.Registry.Get('chart.tooltip').__canvas__.id == canvas.id) { |
---|
| 672 | |
---|
| 673 | return; |
---|
| 674 | } |
---|
| 675 | |
---|
| 676 | /** |
---|
| 677 | * Redraw the graph |
---|
| 678 | */ |
---|
| 679 | if (obj.Get('chart.tooltips.highlight')) { |
---|
| 680 | // Redraw the graph |
---|
| 681 | RGraph.Redraw(); |
---|
| 682 | } |
---|
| 683 | |
---|
| 684 | // SHOW THE CORRECT TOOLTIP |
---|
| 685 | RGraph.Tooltip(canvas, text, e.pageX, e.pageY, idx); |
---|
| 686 | |
---|
| 687 | // Store the tooltip index on the tooltip object |
---|
| 688 | RGraph.Registry.Get('chart.tooltip').__index__ = Number(idx); |
---|
| 689 | |
---|
| 690 | /** |
---|
| 691 | * This converts idx into the index that is not greater than the |
---|
| 692 | * number of items in the data array |
---|
| 693 | */ |
---|
| 694 | while (idx >= obj.data[0].length) { |
---|
| 695 | idx -= obj.data[0].length |
---|
| 696 | } |
---|
| 697 | |
---|
| 698 | RGraph.Registry.Get('chart.tooltip').__index2__ = idx; |
---|
| 699 | |
---|
| 700 | /** |
---|
| 701 | * Highlight the graph |
---|
| 702 | */ |
---|
| 703 | if (obj.Get('chart.tooltips.highlight')) { |
---|
| 704 | context.beginPath(); |
---|
| 705 | context.moveTo(xCoord, yCoord); |
---|
| 706 | context.arc(xCoord, yCoord, 2, 0, 6.28, 0); |
---|
| 707 | context.strokeStyle = obj.Get('chart.highlight.stroke'); |
---|
| 708 | context.fillStyle = obj.Get('chart.highlight.fill'); |
---|
| 709 | context.stroke(); |
---|
| 710 | context.fill(); |
---|
| 711 | } |
---|
| 712 | |
---|
| 713 | e.stopPropagation(); |
---|
| 714 | return; |
---|
| 715 | } |
---|
| 716 | } |
---|
| 717 | |
---|
| 718 | /** |
---|
| 719 | * Not over a hotspot? |
---|
| 720 | */ |
---|
| 721 | canvas.style.cursor = 'default'; |
---|
| 722 | } |
---|
| 723 | this.canvas.addEventListener('mousemove', canvas_onmousemove_func, false); |
---|
| 724 | RGraph.AddEventListener(this.id, 'mousemove', canvas_onmousemove_func); |
---|
| 725 | |
---|
| 726 | // TODO COMBINED LINE BAR ONCLICK HANDLER |
---|
| 727 | // ONLY INSTALL IF THERE IS A BAR CHART |
---|
| 728 | |
---|
| 729 | //canvas_onclick_func = function (e) |
---|
| 730 | //{ |
---|
| 731 | // p(666) |
---|
| 732 | //} |
---|
| 733 | //this.canvas.addEventListener('click', canvas_onclick_func, false); |
---|
| 734 | //RGraph.AddEventListener(this.id, 'click', canvas_onclick_func); |
---|
| 735 | } |
---|
| 736 | |
---|
| 737 | |
---|
| 738 | |
---|
| 739 | |
---|
| 740 | |
---|
| 741 | |
---|
| 742 | |
---|
| 743 | |
---|
| 744 | |
---|
| 745 | |
---|
| 746 | |
---|
| 747 | |
---|
| 748 | |
---|
| 749 | |
---|
| 750 | /** |
---|
| 751 | * If the axes have been requested to be on top, do that |
---|
| 752 | */ |
---|
| 753 | if (this.Get('chart.axesontop')) { |
---|
| 754 | this.DrawAxes(); |
---|
| 755 | } |
---|
| 756 | |
---|
| 757 | /** |
---|
| 758 | * Draw the labels |
---|
| 759 | */ |
---|
| 760 | this.DrawLabels(); |
---|
| 761 | |
---|
| 762 | /** |
---|
| 763 | * Draw the range if necessary |
---|
| 764 | */ |
---|
| 765 | this.DrawRange(); |
---|
| 766 | |
---|
| 767 | // Draw a key if necessary |
---|
| 768 | if (this.Get('chart.key').length) { |
---|
| 769 | RGraph.DrawKey(this, this.Get('chart.key'), this.Get('chart.colors')); |
---|
| 770 | } |
---|
| 771 | |
---|
| 772 | /** |
---|
| 773 | * Draw " above" labels if enabled |
---|
| 774 | */ |
---|
| 775 | if (this.Get('chart.labels.above')) { |
---|
| 776 | this.DrawAboveLabels(); |
---|
| 777 | } |
---|
| 778 | |
---|
| 779 | /** |
---|
| 780 | * Draw the "in graph" labels |
---|
| 781 | */ |
---|
| 782 | RGraph.DrawInGraphLabels(this); |
---|
| 783 | |
---|
| 784 | /** |
---|
| 785 | * Draw crosschairs |
---|
| 786 | */ |
---|
| 787 | RGraph.DrawCrosshairs(this); |
---|
| 788 | |
---|
| 789 | /** |
---|
| 790 | * If the canvas is annotatable, do install the event handlers |
---|
| 791 | */ |
---|
| 792 | if (this.Get('chart.annotatable')) { |
---|
| 793 | RGraph.Annotate(this); |
---|
| 794 | } |
---|
| 795 | |
---|
| 796 | /** |
---|
| 797 | * Redraw the lines if a filled range is on the cards |
---|
| 798 | */ |
---|
| 799 | if (this.Get('chart.filled') && this.Get('chart.filled.range') && this.data.length == 2) { |
---|
| 800 | |
---|
| 801 | this.context.beginPath(); |
---|
| 802 | var len = this.coords.length / 2; |
---|
| 803 | this.context.lineWidth = this.Get('chart.linewidth'); |
---|
| 804 | this.context.strokeStyle = this.Get('chart.colors')[0]; |
---|
| 805 | |
---|
| 806 | for (var i=0; i<len; ++i) { |
---|
| 807 | if (i == 0) { |
---|
| 808 | this.context.moveTo(this.coords[i][0], this.coords[i][1]); |
---|
| 809 | } else { |
---|
| 810 | this.context.lineTo(this.coords[i][0], this.coords[i][1]); |
---|
| 811 | } |
---|
| 812 | } |
---|
| 813 | |
---|
| 814 | this.context.stroke(); |
---|
| 815 | |
---|
| 816 | |
---|
| 817 | this.context.beginPath(); |
---|
| 818 | |
---|
| 819 | if (this.Get('chart.colors')[1]) { |
---|
| 820 | this.context.strokeStyle = this.Get('chart.colors')[1]; |
---|
| 821 | } |
---|
| 822 | |
---|
| 823 | for (var i=this.coords.length - 1; i>=len; --i) { |
---|
| 824 | if (i == (this.coords.length - 1) ) { |
---|
| 825 | this.context.moveTo(this.coords[i][0], this.coords[i][1]); |
---|
| 826 | } else { |
---|
| 827 | this.context.lineTo(this.coords[i][0], this.coords[i][1]); |
---|
| 828 | } |
---|
| 829 | } |
---|
| 830 | |
---|
| 831 | this.context.stroke(); |
---|
| 832 | } else if (this.Get('chart.filled') && this.Get('chart.filled.range')) { |
---|
| 833 | alert('[LINE] You must have only two sets of data for a filled range chart'); |
---|
| 834 | } |
---|
| 835 | |
---|
| 836 | /** |
---|
| 837 | * This bit shows the mini zoom window if requested |
---|
| 838 | */ |
---|
| 839 | if (this.Get('chart.zoom.mode') == 'thumbnail') { |
---|
| 840 | RGraph.ShowZoomWindow(this); |
---|
| 841 | } |
---|
| 842 | |
---|
| 843 | /** |
---|
| 844 | * This function enables the zoom in area mode |
---|
| 845 | */ |
---|
| 846 | if (this.Get('chart.zoom.mode') == 'area') { |
---|
| 847 | RGraph.ZoomArea(this); |
---|
| 848 | } |
---|
| 849 | |
---|
| 850 | /** |
---|
| 851 | * This function enables resizing |
---|
| 852 | */ |
---|
| 853 | if (this.Get('chart.resizable')) { |
---|
| 854 | RGraph.AllowResizing(this); |
---|
| 855 | } |
---|
| 856 | |
---|
| 857 | /** |
---|
| 858 | * This function enables adjustments |
---|
| 859 | */ |
---|
| 860 | if (this.Get('chart.adjustable')) { |
---|
| 861 | RGraph.AllowAdjusting(this); |
---|
| 862 | } |
---|
| 863 | |
---|
| 864 | /** |
---|
| 865 | * Fire the RGraph ondraw event |
---|
| 866 | */ |
---|
| 867 | RGraph.FireCustomEvent(this, 'ondraw'); |
---|
| 868 | } |
---|
| 869 | |
---|
| 870 | |
---|
| 871 | /** |
---|
| 872 | * Draws the axes |
---|
| 873 | */ |
---|
| 874 | RGraph.Line.prototype.DrawAxes = function () |
---|
| 875 | { |
---|
| 876 | // Don't draw the axes? |
---|
| 877 | if (this.Get('chart.noaxes')) { |
---|
| 878 | return; |
---|
| 879 | } |
---|
| 880 | |
---|
| 881 | // Turn any shadow off |
---|
| 882 | RGraph.NoShadow(this); |
---|
| 883 | |
---|
| 884 | this.context.lineWidth = 1; |
---|
| 885 | this.context.strokeStyle = this.Get('chart.axis.color'); |
---|
| 886 | this.context.beginPath(); |
---|
| 887 | |
---|
| 888 | // Draw the X axis |
---|
| 889 | if (this.Get('chart.noxaxis') == false) { |
---|
| 890 | if (this.Get('chart.xaxispos') == 'center') { |
---|
| 891 | this.context.moveTo(this.gutterLeft, (this.grapharea / 2) + this.gutterTop); |
---|
| 892 | this.context.lineTo(RGraph.GetWidth(this) - this.gutterRight, (this.grapharea / 2) + this.gutterTop); |
---|
| 893 | } else if (this.Get('chart.xaxispos') == 'top') { |
---|
| 894 | this.context.moveTo(this.gutterLeft, this.gutterTop); |
---|
| 895 | this.context.lineTo(RGraph.GetWidth(this) - this.gutterRight, this.gutterTop); |
---|
| 896 | } else { |
---|
| 897 | this.context.moveTo(this.gutterLeft, RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 898 | this.context.lineTo(RGraph.GetWidth(this) - this.gutterRight, RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 899 | } |
---|
| 900 | } |
---|
| 901 | |
---|
| 902 | // Draw the Y axis |
---|
| 903 | if (this.Get('chart.noyaxis') == false) { |
---|
| 904 | if (this.Get('chart.yaxispos') == 'left') { |
---|
| 905 | this.context.moveTo(this.gutterLeft, this.gutterTop); |
---|
| 906 | this.context.lineTo(this.gutterLeft, RGraph.GetHeight(this) - this.gutterBottom ); |
---|
| 907 | } else { |
---|
| 908 | this.context.moveTo(RGraph.GetWidth(this) - this.gutterRight, this.gutterTop); |
---|
| 909 | this.context.lineTo(RGraph.GetWidth(this) - this.gutterRight, RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 910 | } |
---|
| 911 | } |
---|
| 912 | |
---|
| 913 | /** |
---|
| 914 | * Draw the X tickmarks |
---|
| 915 | */ |
---|
| 916 | if (this.Get('chart.noxaxis') == false) { |
---|
| 917 | |
---|
| 918 | var xTickInterval = (RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight) / (this.Get('chart.xticks') ? this.Get('chart.xticks') : (this.data[0].length - 1)); |
---|
| 919 | |
---|
| 920 | for (x=this.gutterLeft + (this.Get('chart.yaxispos') == 'left' ? xTickInterval : 0); x<=(RGraph.GetWidth(this) - this.gutterRight + 1 ); x+=xTickInterval) { |
---|
| 921 | |
---|
| 922 | if (this.Get('chart.yaxispos') == 'right' && x >= (RGraph.GetWidth(this) - this.gutterRight - 1) ) { |
---|
| 923 | break; |
---|
| 924 | } |
---|
| 925 | |
---|
| 926 | // If the last tick is not desired... |
---|
| 927 | if (this.Get('chart.noendxtick')) { |
---|
| 928 | if (this.Get('chart.yaxispos') == 'left' && x >= (RGraph.GetWidth(this) - this.gutterRight)) { |
---|
| 929 | break; |
---|
| 930 | } else if (this.Get('chart.yaxispos') == 'right' && x == this.gutterLeft) { |
---|
| 931 | continue; |
---|
| 932 | } |
---|
| 933 | } |
---|
| 934 | |
---|
| 935 | var yStart = this.Get('chart.xaxispos') == 'center' ? (this.gutterTop + (this.grapharea / 2)) - 3 : RGraph.GetHeight(this) - this.gutterBottom; |
---|
| 936 | var yEnd = this.Get('chart.xaxispos') == 'center' ? yStart + 6 : RGraph.GetHeight(this) - this.gutterBottom - (x % 60 == 0 ? this.Get('chart.largexticks') * this.Get('chart.tickdirection') : this.Get('chart.smallxticks') * this.Get('chart.tickdirection')); |
---|
| 937 | |
---|
| 938 | if (this.Get('chart.xaxispos') == 'top') { |
---|
| 939 | yStart = this.gutterTop - 3; |
---|
| 940 | yEnd = this.gutterTop; |
---|
| 941 | } |
---|
| 942 | |
---|
| 943 | this.context.moveTo(x, yStart); |
---|
| 944 | this.context.lineTo(x, yEnd); |
---|
| 945 | } |
---|
| 946 | |
---|
| 947 | // Draw an extra tickmark if there is no X axis, but there IS a Y axis |
---|
| 948 | } else if (this.Get('chart.noyaxis') == false) { |
---|
| 949 | if (this.Get('chart.yaxispos') == 'left') { |
---|
| 950 | this.context.moveTo(this.gutterLeft, RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 951 | this.context.lineTo(this.gutterLeft - this.Get('chart.smallyticks'), RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 952 | } else { |
---|
| 953 | this.context.moveTo(RGraph.GetWidth(this) - this.gutterRight, RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 954 | this.context.lineTo(RGraph.GetWidth(this) - this.gutterRight + this.Get('chart.smallyticks'), RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 955 | } |
---|
| 956 | } |
---|
| 957 | |
---|
| 958 | /** |
---|
| 959 | * Draw the Y tickmarks |
---|
| 960 | */ |
---|
| 961 | if (this.Get('chart.noyaxis') == false) { |
---|
| 962 | var counter = 0; |
---|
| 963 | var adjustment = 0; |
---|
| 964 | |
---|
| 965 | if (this.Get('chart.yaxispos') == 'right') { |
---|
| 966 | adjustment = (RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight); |
---|
| 967 | } |
---|
| 968 | |
---|
| 969 | // X axis at the center |
---|
| 970 | if (this.Get('chart.xaxispos') == 'center') { |
---|
| 971 | var interval = (this.grapharea / 10); |
---|
| 972 | var lineto = (this.Get('chart.yaxispos') == 'left' ? this.gutterLeft : RGraph.GetWidth(this) - this.gutterRight + this.Get('chart.smallyticks')); |
---|
| 973 | |
---|
| 974 | // Draw the upper halves Y tick marks |
---|
| 975 | for (y=this.gutterTop; y < (this.grapharea / 2) + this.gutterTop; y+=interval) { |
---|
| 976 | this.context.moveTo((this.Get('chart.yaxispos') == 'left' ? this.gutterLeft - this.Get('chart.smallyticks') : RGraph.GetWidth(this) - this.gutterRight), y); |
---|
| 977 | this.context.lineTo(lineto, y); |
---|
| 978 | } |
---|
| 979 | |
---|
| 980 | // Draw the lower halves Y tick marks |
---|
| 981 | for (y=this.gutterTop + (this.halfgrapharea) + interval; y <= this.grapharea + this.gutterTop; y+=interval) { |
---|
| 982 | this.context.moveTo((this.Get('chart.yaxispos') == 'left' ? this.gutterLeft - this.Get('chart.smallyticks') : RGraph.GetWidth(this) - this.gutterRight), y); |
---|
| 983 | this.context.lineTo(lineto, y); |
---|
| 984 | } |
---|
| 985 | |
---|
| 986 | // X axis at the top |
---|
| 987 | } else if (this.Get('chart.xaxispos') == 'top') { |
---|
| 988 | var interval = (this.grapharea / 10); |
---|
| 989 | var lineto = (this.Get('chart.yaxispos') == 'left' ? this.gutterLeft : RGraph.GetWidth(this) - this.gutterRight + this.Get('chart.smallyticks')); |
---|
| 990 | |
---|
| 991 | // Draw the Y tick marks |
---|
| 992 | for (y=this.gutterTop + interval; y <=this.grapharea + this.gutterTop; y+=interval) { |
---|
| 993 | this.context.moveTo((this.Get('chart.yaxispos') == 'left' ? this.gutterLeft - this.Get('chart.smallyticks') : RGraph.GetWidth(this) - this.gutterRight), y); |
---|
| 994 | this.context.lineTo(lineto, y); |
---|
| 995 | } |
---|
| 996 | |
---|
| 997 | // If there's no X axis draw an extra tick |
---|
| 998 | if (this.Get('chart.noxaxis')) { |
---|
| 999 | this.context.moveTo((this.Get('chart.yaxispos') == 'left' ? this.gutterLeft - this.Get('chart.smallyticks') : RGraph.GetWidth(this) - this.gutterRight), this.gutterTop); |
---|
| 1000 | this.context.lineTo(lineto, this.gutterTop); |
---|
| 1001 | } |
---|
| 1002 | |
---|
| 1003 | // X axis at the bottom |
---|
| 1004 | } else { |
---|
| 1005 | var lineto = (this.Get('chart.yaxispos') == 'left' ? this.gutterLeft - this.Get('chart.smallyticks') : this.canvas.width - this.gutterRight + this.Get('chart.smallyticks')); |
---|
| 1006 | |
---|
| 1007 | for (y=this.gutterTop; y < (this.canvas.height - this.gutterBottom) && counter < 10; y+=( (RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) / 10) ) { |
---|
| 1008 | |
---|
| 1009 | this.context.moveTo(this.gutterLeft + adjustment, y); |
---|
| 1010 | this.context.lineTo(lineto, y); |
---|
| 1011 | |
---|
| 1012 | var counter = counter +1; |
---|
| 1013 | } |
---|
| 1014 | } |
---|
| 1015 | |
---|
| 1016 | // Draw an extra X tickmark |
---|
| 1017 | } else if (this.Get('chart.noxaxis') == false) { |
---|
| 1018 | |
---|
| 1019 | if (this.Get('chart.yaxispos') == 'left') { |
---|
| 1020 | this.context.moveTo(this.gutterLeft, this.Get('chart.xaxispos') == 'top' ? this.gutterTop : RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 1021 | this.context.lineTo(this.gutterLeft, this.Get('chart.xaxispos') == 'top' ? this.gutterTop - this.Get('chart.smallxticks') : RGraph.GetHeight(this) - this.gutterBottom + this.Get('chart.smallxticks')); |
---|
| 1022 | } else { |
---|
| 1023 | this.context.moveTo(RGraph.GetWidth(this) - this.gutterRight, RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 1024 | this.context.lineTo(RGraph.GetWidth(this) - this.gutterRight, RGraph.GetHeight(this) - this.gutterBottom + this.Get('chart.smallxticks')); |
---|
| 1025 | } |
---|
| 1026 | } |
---|
| 1027 | |
---|
| 1028 | this.context.stroke(); |
---|
| 1029 | } |
---|
| 1030 | |
---|
| 1031 | |
---|
| 1032 | /** |
---|
| 1033 | * Draw the text labels for the axes |
---|
| 1034 | */ |
---|
| 1035 | RGraph.Line.prototype.DrawLabels = function () |
---|
| 1036 | { |
---|
| 1037 | this.context.strokeStyle = 'black'; |
---|
| 1038 | this.context.fillStyle = this.Get('chart.text.color'); |
---|
| 1039 | this.context.lineWidth = 1; |
---|
| 1040 | |
---|
| 1041 | // Turn off any shadow |
---|
| 1042 | RGraph.NoShadow(this); |
---|
| 1043 | |
---|
| 1044 | // This needs to be here |
---|
| 1045 | var font = this.Get('chart.text.font'); |
---|
| 1046 | var text_size = this.Get('chart.text.size'); |
---|
| 1047 | var context = this.context; |
---|
| 1048 | var canvas = this.canvas; |
---|
| 1049 | |
---|
| 1050 | // Draw the Y axis labels |
---|
| 1051 | if (this.Get('chart.ylabels') && this.Get('chart.ylabels.specific') == null) { |
---|
| 1052 | |
---|
| 1053 | var units_pre = this.Get('chart.units.pre'); |
---|
| 1054 | var units_post = this.Get('chart.units.post'); |
---|
| 1055 | var xpos = this.Get('chart.yaxispos') == 'left' ? this.gutterLeft - 5 : RGraph.GetWidth(this) - this.gutterRight + 5; |
---|
| 1056 | var align = this.Get('chart.yaxispos') == 'left' ? 'right' : 'left'; |
---|
| 1057 | |
---|
| 1058 | var numYLabels = this.Get('chart.ylabels.count'); |
---|
| 1059 | var bounding = false; |
---|
| 1060 | var bgcolor = this.Get('chart.ylabels.inside') ? this.Get('chart.ylabels.inside.color') : null; |
---|
| 1061 | |
---|
| 1062 | |
---|
| 1063 | /** |
---|
| 1064 | * If the Y labels are inside the Y axis, invert the alignment |
---|
| 1065 | */ |
---|
| 1066 | if (this.Get('chart.ylabels.inside') == true && align == 'left') { |
---|
| 1067 | xpos -= 10; |
---|
| 1068 | align = 'right'; |
---|
| 1069 | bounding = true; |
---|
| 1070 | |
---|
| 1071 | |
---|
| 1072 | } else if (this.Get('chart.ylabels.inside') == true && align == 'right') { |
---|
| 1073 | xpos += 10; |
---|
| 1074 | align = 'left'; |
---|
| 1075 | bounding = true; |
---|
| 1076 | } |
---|
| 1077 | |
---|
| 1078 | |
---|
| 1079 | |
---|
| 1080 | if (this.Get('chart.xaxispos') == 'center') { |
---|
| 1081 | var half = this.grapharea / 2; |
---|
| 1082 | |
---|
| 1083 | if (numYLabels == 1 || numYLabels == 3 || numYLabels == 5) { |
---|
| 1084 | // Draw the upper halves labels |
---|
| 1085 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + ( (0/5) * half ) + this.halfTextHeight, RGraph.number_format(this, this.scale[4], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1086 | |
---|
| 1087 | if (numYLabels == 5) { |
---|
| 1088 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + ( (1/5) * half ) + this.halfTextHeight, RGraph.number_format(this, this.scale[3], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1089 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + ( (3/5) * half ) + this.halfTextHeight, RGraph.number_format(this, this.scale[1], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1090 | } |
---|
| 1091 | |
---|
| 1092 | if (numYLabels >= 3) { |
---|
| 1093 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + ( (2/5) * half ) + this.halfTextHeight, RGraph.number_format(this, this.scale[2], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1094 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + ( (4/5) * half ) + this.halfTextHeight, RGraph.number_format(this, this.scale[0], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1095 | } |
---|
| 1096 | |
---|
| 1097 | // Draw the lower halves labels |
---|
| 1098 | if (numYLabels >= 3) { |
---|
| 1099 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + ( (6/5) * half ) + this.halfTextHeight, '-' + RGraph.number_format(this, this.scale[0], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1100 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + ( (8/5) * half ) + this.halfTextHeight, '-' + RGraph.number_format(this, this.scale[2], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1101 | } |
---|
| 1102 | |
---|
| 1103 | if (numYLabels == 5) { |
---|
| 1104 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + ( (7/5) * half ) + this.halfTextHeight, '-' + RGraph.number_format(this, this.scale[1], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1105 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + ( (9/5) * half ) + this.halfTextHeight, '-' + RGraph.number_format(this, this.scale[3], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1106 | } |
---|
| 1107 | |
---|
| 1108 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + ( (10/5) * half ) + this.halfTextHeight, '-' + RGraph.number_format(this, (this.scale[4] == '1.0' ? '1.0' : this.scale[4]), units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1109 | |
---|
| 1110 | } else if (numYLabels == 10) { |
---|
| 1111 | |
---|
| 1112 | // 10 Y labels |
---|
| 1113 | var interval = (this.grapharea / numYLabels) / 2; |
---|
| 1114 | |
---|
| 1115 | for (var i=0; i<numYLabels; ++i) { |
---|
| 1116 | // This draws the upper halves labels |
---|
| 1117 | RGraph.Text(context,font, text_size, xpos, this.gutterTop + this.halfTextHeight + ((i/20) * (this.grapharea) ), RGraph.number_format(this, ((this.scale[4] / numYLabels) * (numYLabels - i)).toFixed((this.Get('chart.scale.decimals'))),units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1118 | |
---|
| 1119 | // And this draws the lower halves labels |
---|
| 1120 | RGraph.Text(context, font, text_size, xpos, |
---|
| 1121 | |
---|
| 1122 | this.gutterTop + this.halfTextHeight + ((i/20) * this.grapharea) + (this.grapharea / 2) + (this.grapharea / 20), |
---|
| 1123 | |
---|
| 1124 | '-' + RGraph.number_format(this, (this.scale[4] - ((this.scale[4] / numYLabels) * (numYLabels - i - 1))).toFixed((this.Get('chart.scale.decimals'))),units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1125 | } |
---|
| 1126 | |
---|
| 1127 | } else { |
---|
| 1128 | alert('[LINE SCALE] The number of Y labels must be 1/3/5/10'); |
---|
| 1129 | } |
---|
| 1130 | |
---|
| 1131 | // Draw the lower limit if chart.ymin is specified |
---|
| 1132 | if (typeof(this.Get('chart.ymin')) == 'number') { |
---|
| 1133 | RGraph.Text(context, font, text_size, xpos, RGraph.GetHeight(this) / 2, RGraph.number_format(this, this.Get('chart.ymin').toFixed(this.Get('chart.scale.decimals')), units_pre, units_post), 'center', align, bounding, null, bgcolor); |
---|
| 1134 | } |
---|
| 1135 | |
---|
| 1136 | // No X axis - so draw 0 |
---|
| 1137 | if (this.Get('chart.noxaxis') == true) { |
---|
| 1138 | RGraph.Text(context,font,text_size,xpos,this.gutterTop + ( (5/5) * half ) + this.halfTextHeight,'0',null, align, bounding, null, bgcolor); |
---|
| 1139 | } |
---|
| 1140 | |
---|
| 1141 | // X axis at the top |
---|
| 1142 | } else if (this.Get('chart.xaxispos') == 'top') { |
---|
| 1143 | |
---|
| 1144 | var scale = RGraph.array_reverse(this.scale); |
---|
| 1145 | |
---|
| 1146 | /** |
---|
| 1147 | * Accommodate reversing the Y labels |
---|
| 1148 | */ |
---|
| 1149 | if (this.Get('chart.ylabels.invert')) { |
---|
| 1150 | |
---|
| 1151 | scale = RGraph.array_reverse(scale); |
---|
| 1152 | |
---|
| 1153 | this.context.translate(0, this.grapharea * -0.2); |
---|
| 1154 | if (typeof(this.Get('chart.ymin')) == null) { |
---|
| 1155 | this.Set('chart.ymin', 0); |
---|
| 1156 | } |
---|
| 1157 | } |
---|
| 1158 | |
---|
| 1159 | if (numYLabels == 1 || numYLabels == 3 || numYLabels == 5) { |
---|
| 1160 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + this.halfTextHeight + ((1/5) * (this.grapharea ) ), '-' + RGraph.number_format(this, scale[4], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1161 | |
---|
| 1162 | if (numYLabels == 5) { |
---|
| 1163 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + this.halfTextHeight + ((4/5) * (this.grapharea) ), '-' + RGraph.number_format(this, scale[1], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1164 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + this.halfTextHeight + ((2/5) * (this.grapharea) ), '-' + RGraph.number_format(this, scale[3], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1165 | } |
---|
| 1166 | |
---|
| 1167 | if (numYLabels >= 3) { |
---|
| 1168 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + this.halfTextHeight + ((3/5) * (this.grapharea ) ), '-' + RGraph.number_format(this, scale[2], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1169 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + this.halfTextHeight + ((5/5) * (this.grapharea) ), '-' + RGraph.number_format(this, scale[0], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1170 | } |
---|
| 1171 | |
---|
| 1172 | } else if (numYLabels == 10) { |
---|
| 1173 | |
---|
| 1174 | // 10 Y labels |
---|
| 1175 | var interval = (this.grapharea / numYLabels) / 2; |
---|
| 1176 | |
---|
| 1177 | for (var i=0; i<numYLabels; ++i) { |
---|
| 1178 | |
---|
| 1179 | RGraph.Text(context,font,text_size,xpos,(2 * interval) + this.gutterTop + this.halfTextHeight + ((i/10) * (this.grapharea) ),'-' + RGraph.number_format(this,(scale[0] - (((scale[0] - this.min) / numYLabels) * (numYLabels - i - 1))).toFixed((this.Get('chart.scale.decimals'))),units_pre,units_post),null,align,bounding,null,bgcolor); |
---|
| 1180 | } |
---|
| 1181 | |
---|
| 1182 | } else { |
---|
| 1183 | alert('[LINE SCALE] The number of Y labels must be 1/3/5/10'); |
---|
| 1184 | } |
---|
| 1185 | |
---|
| 1186 | |
---|
| 1187 | /** |
---|
| 1188 | * Accommodate translating back after reversing the labels |
---|
| 1189 | */ |
---|
| 1190 | if (this.Get('chart.ylabels.invert')) { |
---|
| 1191 | this.context.translate(0, 0 - (this.grapharea * -0.2)); |
---|
| 1192 | } |
---|
| 1193 | |
---|
| 1194 | // Draw the lower limit if chart.ymin is specified |
---|
| 1195 | if (typeof(this.Get('chart.ymin')) == 'number') { |
---|
| 1196 | RGraph.Text(context,font,text_size,xpos,this.Get('chart.ylabels.invert') ? this.canvas.height - this.gutterBottom : this.gutterTop,'-' + RGraph.number_format(this, this.Get('chart.ymin').toFixed(this.Get('chart.scale.decimals')), units_pre, units_post),'center',align,bounding,null,bgcolor); |
---|
| 1197 | } |
---|
| 1198 | |
---|
| 1199 | } else { |
---|
| 1200 | |
---|
| 1201 | /** |
---|
| 1202 | * Accommodate reversing the Y labels |
---|
| 1203 | */ |
---|
| 1204 | if (this.Get('chart.ylabels.invert')) { |
---|
| 1205 | this.scale = RGraph.array_reverse(this.scale); |
---|
| 1206 | this.context.translate(0, this.grapharea * 0.2); |
---|
| 1207 | if (typeof(this.Get('chart.ymin')) == null) { |
---|
| 1208 | this.Set('chart.ymin', 0); |
---|
| 1209 | } |
---|
| 1210 | } |
---|
| 1211 | |
---|
| 1212 | if (numYLabels == 1 || numYLabels == 3 || numYLabels == 5) { |
---|
| 1213 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + this.halfTextHeight + ((0/5) * (this.grapharea ) ), RGraph.number_format(this, this.scale[4], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1214 | |
---|
| 1215 | if (numYLabels == 5) { |
---|
| 1216 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + this.halfTextHeight + ((3/5) * (this.grapharea) ), RGraph.number_format(this, this.scale[1], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1217 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + this.halfTextHeight + ((1/5) * (this.grapharea) ), RGraph.number_format(this, this.scale[3], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1218 | } |
---|
| 1219 | |
---|
| 1220 | if (numYLabels >= 3) { |
---|
| 1221 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + this.halfTextHeight + ((2/5) * (this.grapharea ) ), RGraph.number_format(this, this.scale[2], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1222 | RGraph.Text(context, font, text_size, xpos, this.gutterTop + this.halfTextHeight + ((4/5) * (this.grapharea) ), RGraph.number_format(this, this.scale[0], units_pre, units_post), null, align, bounding, null, bgcolor); |
---|
| 1223 | } |
---|
| 1224 | |
---|
| 1225 | } else if (numYLabels == 10) { |
---|
| 1226 | |
---|
| 1227 | // 10 Y labels |
---|
| 1228 | var interval = (this.grapharea / numYLabels) / 2; |
---|
| 1229 | |
---|
| 1230 | for (var i=0; i<numYLabels; ++i) { |
---|
| 1231 | RGraph.Text(context,font,text_size,xpos,this.gutterTop + this.halfTextHeight + ((i/10) * (this.grapharea) ),RGraph.number_format(this,((((this.scale[4] - this.min) / numYLabels) * (numYLabels - i)) + this.min).toFixed((this.Get('chart.scale.decimals'))),units_pre,units_post),null,align,bounding,null,bgcolor); |
---|
| 1232 | } |
---|
| 1233 | |
---|
| 1234 | } else { |
---|
| 1235 | alert('[LINE SCALE] The number of Y labels must be 1/3/5/10'); |
---|
| 1236 | } |
---|
| 1237 | |
---|
| 1238 | |
---|
| 1239 | /** |
---|
| 1240 | * Accommodate translating back after reversing the labels |
---|
| 1241 | */ |
---|
| 1242 | if (this.Get('chart.ylabels.invert')) { |
---|
| 1243 | this.context.translate(0, 0 - (this.grapharea * 0.2)); |
---|
| 1244 | } |
---|
| 1245 | |
---|
| 1246 | // Draw the lower limit if chart.ymin is specified |
---|
| 1247 | if (typeof(this.Get('chart.ymin')) == 'number') { |
---|
| 1248 | RGraph.Text(context,font,text_size,xpos,this.Get('chart.ylabels.invert') ? this.gutterTop : RGraph.GetHeight(this) - this.gutterBottom,RGraph.number_format(this, this.Get('chart.ymin').toFixed(this.Get('chart.scale.decimals')), units_pre, units_post),'center',align,bounding,null,bgcolor); |
---|
| 1249 | } |
---|
| 1250 | } |
---|
| 1251 | |
---|
| 1252 | // No X axis - so draw 0 |
---|
| 1253 | if ( this.Get('chart.noxaxis') == true |
---|
| 1254 | && this.Get('chart.ymin') == null |
---|
| 1255 | ) { |
---|
| 1256 | |
---|
| 1257 | RGraph.Text(context,font,text_size,xpos,this.Get('chart.xaxispos') == 'top' ? this.gutterTop + this.halfTextHeight: (RGraph.GetHeight(this) - this.gutterBottom + this.halfTextHeight),'0',null, align, bounding, null, bgcolor); |
---|
| 1258 | } |
---|
| 1259 | |
---|
| 1260 | } else if (this.Get('chart.ylabels') && typeof(this.Get('chart.ylabels.specific')) == 'object') { |
---|
| 1261 | |
---|
| 1262 | // A few things |
---|
| 1263 | var gap = this.grapharea / this.Get('chart.ylabels.specific').length; |
---|
| 1264 | var halign = this.Get('chart.yaxispos') == 'left' ? 'right' : 'left'; |
---|
| 1265 | var bounding = false; |
---|
| 1266 | var bgcolor = null; |
---|
| 1267 | var ymin = this.Get('chart.ymin') != null && this.Get('chart.ymin'); |
---|
| 1268 | |
---|
| 1269 | // Figure out the X coord based on the position of the axis |
---|
| 1270 | if (this.Get('chart.yaxispos') == 'left') { |
---|
| 1271 | var x = this.gutterLeft - 5; |
---|
| 1272 | |
---|
| 1273 | if (this.Get('chart.ylabels.inside')) { |
---|
| 1274 | x += 10; |
---|
| 1275 | halign = 'left'; |
---|
| 1276 | bounding = true; |
---|
| 1277 | bgcolor = 'rgba(255,255,255,0.5)'; |
---|
| 1278 | } |
---|
| 1279 | |
---|
| 1280 | } else if (this.Get('chart.yaxispos') == 'right') { |
---|
| 1281 | var x = this.canvas.width - this.gutterRight + 5; |
---|
| 1282 | |
---|
| 1283 | if (this.Get('chart.ylabels.inside')) { |
---|
| 1284 | x -= 10; |
---|
| 1285 | halign = 'right'; |
---|
| 1286 | bounding = true; |
---|
| 1287 | bgcolor = 'rgba(255,255,255,0.5)'; |
---|
| 1288 | } |
---|
| 1289 | } |
---|
| 1290 | |
---|
| 1291 | |
---|
| 1292 | // Draw the labels |
---|
| 1293 | if (this.Get('chart.xaxispos') == 'center') { |
---|
| 1294 | |
---|
| 1295 | // Draw the top halfs labels |
---|
| 1296 | for (var i=0; i<this.Get('chart.ylabels.specific').length; ++i) { |
---|
| 1297 | var y = this.gutterTop + (this.grapharea / ((this.Get('chart.ylabels.specific').length ) * 2) * i); |
---|
| 1298 | |
---|
| 1299 | if (ymin && ymin > 0) { |
---|
| 1300 | var y = ((this.grapharea / 2) / (this.Get('chart.ylabels.specific').length - (ymin ? 1 : 0)) ) * i; |
---|
| 1301 | y += this.gutterTop; |
---|
| 1302 | } |
---|
| 1303 | |
---|
| 1304 | RGraph.Text(context, font, text_size,x,y,String(this.Get('chart.ylabels.specific')[i]), 'center', halign, bounding, 0, bgcolor); |
---|
| 1305 | } |
---|
| 1306 | |
---|
| 1307 | // Now reverse the labels and draw the bottom half |
---|
| 1308 | var reversed_labels = RGraph.array_reverse(this.Get('chart.ylabels.specific')); |
---|
| 1309 | |
---|
| 1310 | // Draw the bottom halfs labels |
---|
| 1311 | for (var i=0; i<reversed_labels.length; ++i) { |
---|
| 1312 | var y = (this.grapharea / 2) + this.gutterTop + ((this.grapharea / (reversed_labels.length * 2) ) * (i + 1)); |
---|
| 1313 | |
---|
| 1314 | if (ymin && ymin > 0) { |
---|
| 1315 | var y = ((this.grapharea / 2) / (reversed_labels.length - (ymin ? 1 : 0)) ) * i; |
---|
| 1316 | y += this.gutterTop; |
---|
| 1317 | y += (this.grapharea / 2); |
---|
| 1318 | } |
---|
| 1319 | |
---|
| 1320 | RGraph.Text(context, font, text_size,x,y,String(reversed_labels[i]), 'center', halign, bounding, 0, bgcolor); |
---|
| 1321 | } |
---|
| 1322 | |
---|
| 1323 | } else if (this.Get('chart.xaxispos') == 'top') { |
---|
| 1324 | |
---|
| 1325 | // Reverse the labels and draw |
---|
| 1326 | var reversed_labels = RGraph.array_reverse(this.Get('chart.ylabels.specific')); |
---|
| 1327 | |
---|
| 1328 | // Draw the bottom halfs labels |
---|
| 1329 | for (var i=0; i<reversed_labels.length; ++i) { |
---|
| 1330 | |
---|
| 1331 | var y = ((this.grapharea / (reversed_labels.length - (ymin ? 1 : 0)) ) * (i + (ymin ? 0 : 1))); |
---|
| 1332 | y = y + this.gutterTop; |
---|
| 1333 | |
---|
| 1334 | RGraph.Text(context, font, text_size,x,y,String(reversed_labels[i]), 'center', halign, bounding, 0, bgcolor); |
---|
| 1335 | } |
---|
| 1336 | |
---|
| 1337 | } else { |
---|
| 1338 | for (var i=0; i<this.Get('chart.ylabels.specific').length; ++i) { |
---|
| 1339 | var y = this.gutterTop + ((this.grapharea / (this.Get('chart.ylabels.specific').length - (ymin ? 1 : 0) )) * i); |
---|
| 1340 | RGraph.Text(context, font, text_size,x,y,String(this.Get('chart.ylabels.specific')[i]), 'center', halign, bounding, 0, bgcolor); |
---|
| 1341 | } |
---|
| 1342 | } |
---|
| 1343 | } |
---|
| 1344 | |
---|
| 1345 | // Draw the X axis labels |
---|
| 1346 | if (this.Get('chart.labels') && this.Get('chart.labels').length > 0) { |
---|
| 1347 | |
---|
| 1348 | |
---|
| 1349 | var yOffset = 13; |
---|
| 1350 | var bordered = false; |
---|
| 1351 | var bgcolor = null; |
---|
| 1352 | |
---|
| 1353 | if (this.Get('chart.xlabels.inside')) { |
---|
| 1354 | yOffset = -5; |
---|
| 1355 | bordered = true; |
---|
| 1356 | bgcolor = this.Get('chart.xlabels.inside.color'); |
---|
| 1357 | } |
---|
| 1358 | |
---|
| 1359 | /** |
---|
| 1360 | * Text angle |
---|
| 1361 | */ |
---|
| 1362 | var angle = 0; |
---|
| 1363 | var valign = null; |
---|
| 1364 | var halign = 'center'; |
---|
| 1365 | |
---|
| 1366 | if (typeof(this.Get('chart.text.angle')) == 'number' && this.Get('chart.text.angle') > 0) { |
---|
| 1367 | angle = -1 * this.Get('chart.text.angle'); |
---|
| 1368 | valign = 'center'; |
---|
| 1369 | halign = 'right'; |
---|
| 1370 | yOffset = 10; |
---|
| 1371 | |
---|
| 1372 | if (this.Get('chart.xaxispos') == 'top') { |
---|
| 1373 | yOffset = 10; |
---|
| 1374 | } |
---|
| 1375 | } |
---|
| 1376 | |
---|
| 1377 | this.context.fillStyle = this.Get('chart.text.color'); |
---|
| 1378 | var numLabels = this.Get('chart.labels').length; |
---|
| 1379 | |
---|
| 1380 | for (i=0; i<numLabels; ++i) { |
---|
| 1381 | |
---|
| 1382 | // Changed 8th Nov 2010 to be not reliant on the coords |
---|
| 1383 | //if (this.Get('chart.labels')[i] && this.coords && this.coords[i] && this.coords[i][0]) { |
---|
| 1384 | if (this.Get('chart.labels')[i]) { |
---|
| 1385 | |
---|
| 1386 | var labelX = ((RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight - (2 * this.Get('chart.hmargin'))) / (numLabels - 1) ) * i; |
---|
| 1387 | labelX += this.gutterLeft + this.Get('chart.hmargin'); |
---|
| 1388 | |
---|
| 1389 | /** |
---|
| 1390 | * Account for an unrelated number of labels |
---|
| 1391 | */ |
---|
| 1392 | if (this.Get('chart.labels').length != this.data[0].length) { |
---|
| 1393 | labelX = this.gutterLeft + this.Get('chart.hmargin') + ((RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight - (2 * this.Get('chart.hmargin'))) * (i / (this.Get('chart.labels').length - 1))); |
---|
| 1394 | } |
---|
| 1395 | |
---|
| 1396 | // This accounts for there only being one point on the chart |
---|
| 1397 | if (!labelX) { |
---|
| 1398 | labelX = this.gutterLeft + this.Get('chart.hmargin'); |
---|
| 1399 | } |
---|
| 1400 | |
---|
| 1401 | if (this.Get('chart.xaxispos') == 'top' && this.Get('chart.text.angle') > 0) { |
---|
| 1402 | halign = 'left'; |
---|
| 1403 | } |
---|
| 1404 | |
---|
| 1405 | RGraph.Text(context, |
---|
| 1406 | font, |
---|
| 1407 | text_size, |
---|
| 1408 | labelX, |
---|
| 1409 | (this.Get('chart.xaxispos') == 'top') ? this.gutterTop - yOffset - (this.Get('chart.xlabels.inside') ? -22 : 0) : (RGraph.GetHeight(this) - this.gutterBottom) + yOffset, |
---|
| 1410 | String(this.Get('chart.labels')[i]), |
---|
| 1411 | valign, |
---|
| 1412 | halign, |
---|
| 1413 | bordered, |
---|
| 1414 | angle, |
---|
| 1415 | bgcolor); |
---|
| 1416 | } |
---|
| 1417 | } |
---|
| 1418 | |
---|
| 1419 | } |
---|
| 1420 | |
---|
| 1421 | this.context.stroke(); |
---|
| 1422 | this.context.fill(); |
---|
| 1423 | } |
---|
| 1424 | |
---|
| 1425 | |
---|
| 1426 | /** |
---|
| 1427 | * Draws the line |
---|
| 1428 | */ |
---|
| 1429 | RGraph.Line.prototype.DrawLine = function (lineData, color, fill, linewidth, tickmarks, index) |
---|
| 1430 | { |
---|
| 1431 | var penUp = false; |
---|
| 1432 | var yPos = null; |
---|
| 1433 | var xPos = 0; |
---|
| 1434 | this.context.lineWidth = 1; |
---|
| 1435 | var lineCoords = []; |
---|
| 1436 | |
---|
| 1437 | // Work out the X interval |
---|
| 1438 | var xInterval = (this.canvas.width - (2 * this.Get('chart.hmargin')) - this.gutterLeft - this.gutterRight) / (lineData.length - 1); |
---|
| 1439 | |
---|
| 1440 | // Loop thru each value given, plotting the line |
---|
| 1441 | for (i=0; i<lineData.length; i++) { |
---|
| 1442 | |
---|
| 1443 | var data_point = lineData[i]; |
---|
| 1444 | |
---|
| 1445 | |
---|
| 1446 | yPos = this.canvas.height - (((data_point - (data_point > 0 ? this.Get('chart.ymin') : (-1 * this.Get('chart.ymin')))) / (this.max - this.min) ) * this.grapharea); |
---|
| 1447 | yPos = (this.grapharea / (this.max - this.min)) * (data_point - this.min); |
---|
| 1448 | yPos = this.canvas.height - yPos; |
---|
| 1449 | |
---|
| 1450 | /** |
---|
| 1451 | * This skirts an annoying JS rounding error |
---|
| 1452 | * SEARCH TAGS: JS ROUNDING ERROR DECIMALS |
---|
| 1453 | */ |
---|
| 1454 | if (data_point == this.max) { |
---|
| 1455 | yPos = Math.round(yPos); |
---|
| 1456 | } |
---|
| 1457 | |
---|
| 1458 | if (this.Get('chart.ylabels.invert')) { |
---|
| 1459 | yPos -= this.gutterBottom; |
---|
| 1460 | yPos -= this.gutterTop; |
---|
| 1461 | yPos = this.canvas.height - yPos; |
---|
| 1462 | } |
---|
| 1463 | |
---|
| 1464 | // Make adjustments depending on the X axis position |
---|
| 1465 | if (this.Get('chart.xaxispos') == 'center') { |
---|
| 1466 | yPos = (yPos - this.gutterBottom - this.gutterTop) / 2; |
---|
| 1467 | yPos = yPos + this.gutterTop; |
---|
| 1468 | |
---|
| 1469 | // TODO Check this |
---|
| 1470 | } else if (this.Get('chart.xaxispos') == 'top') { |
---|
| 1471 | |
---|
| 1472 | yPos = (this.grapharea / (this.max - this.min)) * (Math.abs(data_point) - this.min); |
---|
| 1473 | yPos += this.gutterTop; |
---|
| 1474 | |
---|
| 1475 | if (this.Get('chart.ylabels.invert')) { |
---|
| 1476 | yPos -= this.gutterTop; |
---|
| 1477 | yPos = this.grapharea - yPos; |
---|
| 1478 | yPos += this.gutterTop; |
---|
| 1479 | } |
---|
| 1480 | |
---|
| 1481 | } else if (this.Get('chart.xaxispos') == 'bottom') { |
---|
| 1482 | // TODO |
---|
| 1483 | yPos -= this.gutterBottom; // Without this the line is out of place due to the gutter |
---|
| 1484 | } |
---|
| 1485 | |
---|
| 1486 | |
---|
| 1487 | |
---|
| 1488 | // Null data points, and a special case for this bug:http://dev.rgraph.net/tests/ymin.html |
---|
| 1489 | if ( lineData[i] == null |
---|
| 1490 | || (this.Get('chart.xaxispos') == 'bottom' && lineData[i] < this.min && !this.Get('chart.outofbounds')) |
---|
| 1491 | || (this.Get('chart.xaxispos') == 'center' && lineData[i] < (-1 * this.max) && !this.Get('chart.outofbounds'))) { |
---|
| 1492 | |
---|
| 1493 | yPos = null; |
---|
| 1494 | } |
---|
| 1495 | |
---|
| 1496 | // Not always very noticeable, but it does have an effect |
---|
| 1497 | // with thick lines |
---|
| 1498 | this.context.lineCap = 'round'; |
---|
| 1499 | this.context.lineJoin = 'round'; |
---|
| 1500 | |
---|
| 1501 | // Plot the line if we're at least on the second iteration |
---|
| 1502 | if (i > 0) { |
---|
| 1503 | xPos = xPos + xInterval; |
---|
| 1504 | } else { |
---|
| 1505 | xPos = this.Get('chart.hmargin') + this.gutterLeft; |
---|
| 1506 | } |
---|
| 1507 | |
---|
| 1508 | /** |
---|
| 1509 | * Add the coords to an array |
---|
| 1510 | */ |
---|
| 1511 | this.coords.push([xPos, yPos]); |
---|
| 1512 | lineCoords.push([xPos, yPos]); |
---|
| 1513 | } |
---|
| 1514 | |
---|
| 1515 | this.context.stroke(); |
---|
| 1516 | |
---|
| 1517 | // Store the coords in another format, indexed by line number |
---|
| 1518 | this.coords2[index] = lineCoords; |
---|
| 1519 | |
---|
| 1520 | /** |
---|
| 1521 | * For IE only: Draw the shadow ourselves as ExCanvas doesn't produce shadows |
---|
| 1522 | */ |
---|
| 1523 | if (RGraph.isIE8() && this.Get('chart.shadow')) { |
---|
| 1524 | this.DrawIEShadow(lineCoords, this.context.shadowColor); |
---|
| 1525 | } |
---|
| 1526 | |
---|
| 1527 | /** |
---|
| 1528 | * Now draw the actual line [FORMERLY SECOND] |
---|
| 1529 | */ |
---|
| 1530 | this.context.beginPath(); |
---|
| 1531 | this.context.strokeStyle = 'rgba(240,240,240,0.9)'; // Almost transparent - changed on 10th May 2010 |
---|
| 1532 | //this.context.strokeStyle = fill; |
---|
| 1533 | if (fill) this.context.fillStyle = fill; |
---|
| 1534 | |
---|
| 1535 | var isStepped = this.Get('chart.stepped'); |
---|
| 1536 | var isFilled = this.Get('chart.filled'); |
---|
| 1537 | |
---|
| 1538 | |
---|
| 1539 | for (var i=0; i<lineCoords.length; ++i) { |
---|
| 1540 | |
---|
| 1541 | xPos = lineCoords[i][0]; |
---|
| 1542 | yPos = lineCoords[i][1]; |
---|
| 1543 | var set = index; |
---|
| 1544 | |
---|
| 1545 | var prevY = (lineCoords[i - 1] ? lineCoords[i - 1][1] : null); |
---|
| 1546 | var isLast = (i + 1) == lineCoords.length; |
---|
| 1547 | |
---|
| 1548 | /** |
---|
| 1549 | * This nullifys values which are out-of-range |
---|
| 1550 | */ |
---|
| 1551 | if (prevY < this.gutterTop || prevY > (RGraph.GetHeight(this) - this.gutterBottom) ) { |
---|
| 1552 | penUp = true; |
---|
| 1553 | } |
---|
| 1554 | |
---|
| 1555 | if (i == 0 || penUp || !yPos || !prevY || prevY < this.gutterTop) { |
---|
| 1556 | |
---|
| 1557 | if (this.Get('chart.filled') && !this.Get('chart.filled.range')) { |
---|
| 1558 | this.context.moveTo(xPos + 1, this.canvas.height - this.gutterBottom - (this.Get('chart.xaxispos') == 'center' ? (this.canvas.height - this.gutterTop - this.gutterBottom) / 2 : 0) -1); |
---|
| 1559 | this.context.lineTo(xPos + 1, yPos); |
---|
| 1560 | |
---|
| 1561 | } else { |
---|
| 1562 | this.context.moveTo(xPos, yPos); |
---|
| 1563 | } |
---|
| 1564 | |
---|
| 1565 | if (yPos == null) { |
---|
| 1566 | penUp = true; |
---|
| 1567 | } else { |
---|
| 1568 | penUp = false; |
---|
| 1569 | } |
---|
| 1570 | |
---|
| 1571 | } else { |
---|
| 1572 | |
---|
| 1573 | // Draw the stepped part of stepped lines |
---|
| 1574 | if (isStepped) { |
---|
| 1575 | this.context.lineTo(xPos, lineCoords[i - 1][1]); |
---|
| 1576 | } |
---|
| 1577 | |
---|
| 1578 | if ((yPos >= this.gutterTop && yPos <= (RGraph.GetHeight(this) - this.gutterBottom)) || this.Get('chart.outofbounds') ) { |
---|
| 1579 | |
---|
| 1580 | if (isLast && this.Get('chart.filled') && !this.Get('chart.filled.range') && this.Get('chart.yaxispos') == 'right') { |
---|
| 1581 | xPos -= 1; |
---|
| 1582 | } |
---|
| 1583 | |
---|
| 1584 | |
---|
| 1585 | // Added 8th September 2009 |
---|
| 1586 | if (!isStepped || !isLast) { |
---|
| 1587 | this.context.lineTo(xPos, yPos); |
---|
| 1588 | |
---|
| 1589 | if (isFilled && lineCoords[i+1] && lineCoords[i+1][1] == null) { |
---|
| 1590 | this.context.lineTo(xPos, RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 1591 | } |
---|
| 1592 | |
---|
| 1593 | // Added August 2010 |
---|
| 1594 | } else if (isStepped && isLast) { |
---|
| 1595 | this.context.lineTo(xPos,yPos); |
---|
| 1596 | } |
---|
| 1597 | |
---|
| 1598 | |
---|
| 1599 | penUp = false; |
---|
| 1600 | } else { |
---|
| 1601 | penUp = true; |
---|
| 1602 | } |
---|
| 1603 | } |
---|
| 1604 | } |
---|
| 1605 | |
---|
| 1606 | if (this.Get('chart.filled') && !this.Get('chart.filled.range')) { |
---|
| 1607 | var fillStyle = this.Get('chart.fillstyle'); |
---|
| 1608 | |
---|
| 1609 | this.context.lineTo(xPos, RGraph.GetHeight(this) - this.gutterBottom - 1 - + (this.Get('chart.xaxispos') == 'center' ? (RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) / 2 : 0)); |
---|
| 1610 | this.context.fillStyle = fill; |
---|
| 1611 | |
---|
| 1612 | this.context.fill(); |
---|
| 1613 | this.context.beginPath(); |
---|
| 1614 | } |
---|
| 1615 | |
---|
| 1616 | /** |
---|
| 1617 | * FIXME this may need removing when Chrome is fixed |
---|
| 1618 | * SEARCH TAGS: CHROME SHADOW BUG |
---|
| 1619 | */ |
---|
| 1620 | if (navigator.userAgent.match(/Chrome/) && this.Get('chart.shadow') && this.Get('chart.chromefix') && this.Get('chart.shadow.blur') > 0) { |
---|
| 1621 | |
---|
| 1622 | for (var i=lineCoords.length - 1; i>=0; --i) { |
---|
| 1623 | if ( |
---|
| 1624 | typeof(lineCoords[i][1]) != 'number' |
---|
| 1625 | || (typeof(lineCoords[i+1]) == 'object' && typeof(lineCoords[i+1][1]) != 'number') |
---|
| 1626 | ) { |
---|
| 1627 | this.context.moveTo(lineCoords[i][0],lineCoords[i][1]); |
---|
| 1628 | } else { |
---|
| 1629 | this.context.lineTo(lineCoords[i][0],lineCoords[i][1]); |
---|
| 1630 | } |
---|
| 1631 | } |
---|
| 1632 | } |
---|
| 1633 | |
---|
| 1634 | this.context.stroke(); |
---|
| 1635 | |
---|
| 1636 | |
---|
| 1637 | if (this.Get('chart.backdrop')) { |
---|
| 1638 | this.DrawBackdrop(lineCoords, color); |
---|
| 1639 | } |
---|
| 1640 | |
---|
| 1641 | // Now redraw the lines with the correct line width |
---|
| 1642 | this.RedrawLine(lineCoords, color, linewidth); |
---|
| 1643 | |
---|
| 1644 | this.context.stroke(); |
---|
| 1645 | |
---|
| 1646 | // Draw the tickmarks |
---|
| 1647 | for (var i=0; i<lineCoords.length; ++i) { |
---|
| 1648 | |
---|
| 1649 | i = Number(i); |
---|
| 1650 | |
---|
| 1651 | if (isStepped && i == (lineCoords.length - 1)) { |
---|
| 1652 | this.context.beginPath(); |
---|
| 1653 | //continue; |
---|
| 1654 | } |
---|
| 1655 | |
---|
| 1656 | if ( |
---|
| 1657 | ( |
---|
| 1658 | tickmarks != 'endcircle' |
---|
| 1659 | && tickmarks != 'endsquare' |
---|
| 1660 | && tickmarks != 'filledendsquare' |
---|
| 1661 | && tickmarks != 'endtick' |
---|
| 1662 | && tickmarks != 'endtriangle' |
---|
| 1663 | && tickmarks != 'arrow' |
---|
| 1664 | && tickmarks != 'filledarrow' |
---|
| 1665 | ) |
---|
| 1666 | || (i == 0 && tickmarks != 'arrow' && tickmarks != 'filledarrow') |
---|
| 1667 | || i == (lineCoords.length - 1) |
---|
| 1668 | ) { |
---|
| 1669 | |
---|
| 1670 | var prevX = (i <= 0 ? null : lineCoords[i - 1][0]); |
---|
| 1671 | var prevY = (i <= 0 ? null : lineCoords[i - 1][1]); |
---|
| 1672 | |
---|
| 1673 | this.DrawTick(lineData, lineCoords[i][0], lineCoords[i][1], color, false, prevX, prevY, tickmarks, i); |
---|
| 1674 | |
---|
| 1675 | // Draws tickmarks on the stepped bits of stepped charts. Takend out 14th July 2010 |
---|
| 1676 | // |
---|
| 1677 | //if (this.Get('chart.stepped') && lineCoords[i + 1] && this.Get('chart.tickmarks') != 'endsquare' && this.Get('chart.tickmarks') != 'endcircle' && this.Get('chart.tickmarks') != 'endtick') { |
---|
| 1678 | // this.DrawTick(lineCoords[i + 1][0], lineCoords[i][1], color); |
---|
| 1679 | //} |
---|
| 1680 | } |
---|
| 1681 | } |
---|
| 1682 | |
---|
| 1683 | // Draw something off canvas to skirt an annoying bug |
---|
| 1684 | this.context.beginPath(); |
---|
| 1685 | this.context.arc(RGraph.GetWidth(this) + 50000, RGraph.GetHeight(this) + 50000, 2, 0, 6.38, 1); |
---|
| 1686 | } |
---|
| 1687 | |
---|
| 1688 | |
---|
| 1689 | /** |
---|
| 1690 | * This functions draws a tick mark on the line |
---|
| 1691 | * |
---|
| 1692 | * @param xPos int The x position of the tickmark |
---|
| 1693 | * @param yPos int The y position of the tickmark |
---|
| 1694 | * @param color str The color of the tickmark |
---|
| 1695 | * @param bool Whether the tick is a shadow. If it is, it gets offset by the shadow offset |
---|
| 1696 | */ |
---|
| 1697 | RGraph.Line.prototype.DrawTick = function (lineData, xPos, yPos, color, isShadow, prevX, prevY, tickmarks, index) |
---|
| 1698 | { |
---|
| 1699 | // If the yPos is null - no tick |
---|
| 1700 | if ((yPos == null || yPos > (this.canvas.height - this.gutterBottom) || yPos < this.gutterTop) && !this.Get('chart.outofbounds')) { |
---|
| 1701 | return; |
---|
| 1702 | } |
---|
| 1703 | |
---|
| 1704 | this.context.beginPath(); |
---|
| 1705 | |
---|
| 1706 | var offset = 0; |
---|
| 1707 | |
---|
| 1708 | // Reset the stroke and lineWidth back to the same as what they were when the line was drawm |
---|
| 1709 | // UPDATE 28th July 2011 - the line width is now set to 1 |
---|
| 1710 | this.context.lineWidth = this.Get('chart.tickmarks.linewidth') ? this.Get('chart.tickmarks.linewidth') : this.Get('chart.linewidth'); |
---|
| 1711 | this.context.strokeStyle = isShadow ? this.Get('chart.shadow.color') : this.context.strokeStyle; |
---|
| 1712 | this.context.fillStyle = isShadow ? this.Get('chart.shadow.color') : this.context.strokeStyle; |
---|
| 1713 | |
---|
| 1714 | // Cicular tick marks |
---|
| 1715 | if ( tickmarks == 'circle' |
---|
| 1716 | || tickmarks == 'filledcircle' |
---|
| 1717 | || tickmarks == 'endcircle') { |
---|
| 1718 | |
---|
| 1719 | if (tickmarks == 'circle'|| tickmarks == 'filledcircle' || (tickmarks == 'endcircle') ) { |
---|
| 1720 | this.context.beginPath(); |
---|
| 1721 | this.context.arc(xPos + offset, yPos + offset, this.Get('chart.ticksize'), 0, 360 / (180 / Math.PI), false); |
---|
| 1722 | |
---|
| 1723 | if (tickmarks == 'filledcircle') { |
---|
| 1724 | this.context.fillStyle = isShadow ? this.Get('chart.shadow.color') : this.context.strokeStyle; |
---|
| 1725 | } else { |
---|
| 1726 | this.context.fillStyle = isShadow ? this.Get('chart.shadow.color') : 'white'; |
---|
| 1727 | } |
---|
| 1728 | |
---|
| 1729 | this.context.stroke(); |
---|
| 1730 | this.context.fill(); |
---|
| 1731 | } |
---|
| 1732 | |
---|
| 1733 | // Halfheight "Line" style tick marks |
---|
| 1734 | } else if (tickmarks == 'halftick') { |
---|
| 1735 | this.context.beginPath(); |
---|
| 1736 | this.context.moveTo(xPos, yPos); |
---|
| 1737 | this.context.lineTo(xPos, yPos + this.Get('chart.ticksize')); |
---|
| 1738 | |
---|
| 1739 | this.context.stroke(); |
---|
| 1740 | |
---|
| 1741 | // Tick style tickmarks |
---|
| 1742 | } else if (tickmarks == 'tick') { |
---|
| 1743 | this.context.beginPath(); |
---|
| 1744 | this.context.moveTo(xPos, yPos - this.Get('chart.ticksize')); |
---|
| 1745 | this.context.lineTo(xPos, yPos + this.Get('chart.ticksize')); |
---|
| 1746 | |
---|
| 1747 | this.context.stroke(); |
---|
| 1748 | |
---|
| 1749 | // Endtick style tickmarks |
---|
| 1750 | } else if (tickmarks == 'endtick') { |
---|
| 1751 | this.context.beginPath(); |
---|
| 1752 | this.context.moveTo(xPos, yPos - this.Get('chart.ticksize')); |
---|
| 1753 | this.context.lineTo(xPos, yPos + this.Get('chart.ticksize')); |
---|
| 1754 | |
---|
| 1755 | this.context.stroke(); |
---|
| 1756 | |
---|
| 1757 | // "Cross" style tick marks |
---|
| 1758 | } else if (tickmarks == 'cross') { |
---|
| 1759 | this.context.beginPath(); |
---|
| 1760 | this.context.moveTo(xPos - this.Get('chart.ticksize'), yPos - this.Get('chart.ticksize')); |
---|
| 1761 | this.context.lineTo(xPos + this.Get('chart.ticksize'), yPos + this.Get('chart.ticksize')); |
---|
| 1762 | this.context.moveTo(xPos + this.Get('chart.ticksize'), yPos - this.Get('chart.ticksize')); |
---|
| 1763 | this.context.lineTo(xPos - this.Get('chart.ticksize'), yPos + this.Get('chart.ticksize')); |
---|
| 1764 | |
---|
| 1765 | this.context.stroke(); |
---|
| 1766 | |
---|
| 1767 | |
---|
| 1768 | // Triangle style tick marks |
---|
| 1769 | } else if (tickmarks == 'triangle' || tickmarks == 'filledtriangle' || tickmarks == 'endtriangle') { |
---|
| 1770 | this.context.beginPath(); |
---|
| 1771 | |
---|
| 1772 | if (tickmarks == 'filledtriangle') { |
---|
| 1773 | this.context.fillStyle = isShadow ? this.Get('chart.shadow.color') : this.context.strokeStyle; |
---|
| 1774 | } else { |
---|
| 1775 | this.context.fillStyle = 'white'; |
---|
| 1776 | } |
---|
| 1777 | |
---|
| 1778 | this.context.moveTo(xPos - this.Get('chart.ticksize'), yPos + this.Get('chart.ticksize')); |
---|
| 1779 | this.context.lineTo(xPos, yPos - this.Get('chart.ticksize')); |
---|
| 1780 | this.context.lineTo(xPos + this.Get('chart.ticksize'), yPos + this.Get('chart.ticksize')); |
---|
| 1781 | this.context.closePath(); |
---|
| 1782 | |
---|
| 1783 | this.context.stroke(); |
---|
| 1784 | this.context.fill(); |
---|
| 1785 | |
---|
| 1786 | |
---|
| 1787 | // A white bordered circle |
---|
| 1788 | } else if (tickmarks == 'borderedcircle' || tickmarks == 'dot') { |
---|
| 1789 | this.context.lineWidth = 1; |
---|
| 1790 | this.context.strokeStyle = this.Get('chart.tickmarks.dot.color'); |
---|
| 1791 | this.context.fillStyle = this.Get('chart.tickmarks.dot.color'); |
---|
| 1792 | |
---|
| 1793 | // The outer white circle |
---|
| 1794 | this.context.beginPath(); |
---|
| 1795 | this.context.arc(xPos, yPos, this.Get('chart.ticksize'), 0, 360 / (180 / Math.PI), false); |
---|
| 1796 | this.context.closePath(); |
---|
| 1797 | |
---|
| 1798 | |
---|
| 1799 | this.context.fill(); |
---|
| 1800 | this.context.stroke(); |
---|
| 1801 | |
---|
| 1802 | // Now do the inners |
---|
| 1803 | this.context.beginPath(); |
---|
| 1804 | this.context.fillStyle = color; |
---|
| 1805 | this.context.strokeStyle = color; |
---|
| 1806 | this.context.arc(xPos, yPos, this.Get('chart.ticksize') - 2, 0, 360 / (180 / Math.PI), false); |
---|
| 1807 | |
---|
| 1808 | this.context.closePath(); |
---|
| 1809 | |
---|
| 1810 | this.context.fill(); |
---|
| 1811 | this.context.stroke(); |
---|
| 1812 | |
---|
| 1813 | } else if ( tickmarks == 'square' |
---|
| 1814 | || tickmarks == 'filledsquare' |
---|
| 1815 | || (tickmarks == 'endsquare') |
---|
| 1816 | || (tickmarks == 'filledendsquare') ) { |
---|
| 1817 | |
---|
| 1818 | this.context.fillStyle = 'white'; |
---|
| 1819 | this.context.strokeStyle = this.context.strokeStyle; // FIXME Is this correct? |
---|
| 1820 | |
---|
| 1821 | this.context.beginPath(); |
---|
| 1822 | this.context.strokeRect(xPos - this.Get('chart.ticksize'), yPos - this.Get('chart.ticksize'), this.Get('chart.ticksize') * 2, this.Get('chart.ticksize') * 2); |
---|
| 1823 | |
---|
| 1824 | // Fillrect |
---|
| 1825 | if (tickmarks == 'filledsquare' || tickmarks == 'filledendsquare') { |
---|
| 1826 | this.context.fillStyle = isShadow ? this.Get('chart.shadow.color') : this.context.strokeStyle; |
---|
| 1827 | this.context.fillRect(xPos - this.Get('chart.ticksize'), yPos - this.Get('chart.ticksize'), this.Get('chart.ticksize') * 2, this.Get('chart.ticksize') * 2); |
---|
| 1828 | |
---|
| 1829 | } else if (tickmarks == 'square' || tickmarks == 'endsquare') { |
---|
| 1830 | this.context.fillStyle = isShadow ? this.Get('chart.shadow.color') : 'white'; |
---|
| 1831 | this.context.fillRect((xPos - this.Get('chart.ticksize')) + 1, (yPos - this.Get('chart.ticksize')) + 1, (this.Get('chart.ticksize') * 2) - 2, (this.Get('chart.ticksize') * 2) - 2); |
---|
| 1832 | } |
---|
| 1833 | |
---|
| 1834 | this.context.stroke(); |
---|
| 1835 | this.context.fill(); |
---|
| 1836 | |
---|
| 1837 | /** |
---|
| 1838 | * FILLED arrowhead |
---|
| 1839 | */ |
---|
| 1840 | } else if (tickmarks == 'filledarrow') { |
---|
| 1841 | |
---|
| 1842 | var x = Math.abs(xPos - prevX); |
---|
| 1843 | var y = Math.abs(yPos - prevY); |
---|
| 1844 | |
---|
| 1845 | if (yPos < prevY) { |
---|
| 1846 | var a = Math.atan(x / y) + 1.57; |
---|
| 1847 | } else { |
---|
| 1848 | var a = Math.atan(y / x) + 3.14; |
---|
| 1849 | } |
---|
| 1850 | |
---|
| 1851 | this.context.beginPath(); |
---|
| 1852 | this.context.moveTo(xPos, yPos); |
---|
| 1853 | this.context.arc(xPos, yPos, 7, a - 0.5, a + 0.5, false); |
---|
| 1854 | this.context.closePath(); |
---|
| 1855 | |
---|
| 1856 | this.context.stroke(); |
---|
| 1857 | this.context.fill(); |
---|
| 1858 | |
---|
| 1859 | /** |
---|
| 1860 | * Arrow head, NOT filled |
---|
| 1861 | */ |
---|
| 1862 | } else if (tickmarks == 'arrow') { |
---|
| 1863 | |
---|
| 1864 | var x = Math.abs(xPos - prevX); |
---|
| 1865 | var y = Math.abs(yPos - prevY); |
---|
| 1866 | |
---|
| 1867 | if (yPos < prevY) { |
---|
| 1868 | var a = Math.atan(x / y) + 1.57; |
---|
| 1869 | } else { |
---|
| 1870 | var a = Math.atan(y / x) + 3.14; |
---|
| 1871 | } |
---|
| 1872 | |
---|
| 1873 | this.context.beginPath(); |
---|
| 1874 | this.context.moveTo(xPos, yPos); |
---|
| 1875 | this.context.arc(xPos, yPos, 7, a - 0.5 - (document.all ? 0.1 : 0.01), a - 0.4, false); |
---|
| 1876 | |
---|
| 1877 | this.context.moveTo(xPos, yPos); |
---|
| 1878 | this.context.arc(xPos, yPos, 7, a + 0.5 + (document.all ? 0.1 : 0.01), a + 0.5, true); |
---|
| 1879 | |
---|
| 1880 | |
---|
| 1881 | this.context.stroke(); |
---|
| 1882 | |
---|
| 1883 | /** |
---|
| 1884 | * Custom tick drawing function |
---|
| 1885 | */ |
---|
| 1886 | } else if (typeof(tickmarks) == 'function') { |
---|
| 1887 | tickmarks(this, lineData, lineData[index], index, xPos, yPos, color, prevX, prevY); |
---|
| 1888 | } |
---|
| 1889 | } |
---|
| 1890 | |
---|
| 1891 | |
---|
| 1892 | /** |
---|
| 1893 | * Draws a filled range if necessary |
---|
| 1894 | */ |
---|
| 1895 | RGraph.Line.prototype.DrawRange = function () |
---|
| 1896 | { |
---|
| 1897 | /** |
---|
| 1898 | * Fill the range if necessary |
---|
| 1899 | */ |
---|
| 1900 | if (this.Get('chart.filled.range') && this.Get('chart.filled')) { |
---|
| 1901 | this.context.beginPath(); |
---|
| 1902 | this.context.fillStyle = this.Get('chart.fillstyle'); |
---|
| 1903 | this.context.strokeStyle = this.Get('chart.fillstyle'); |
---|
| 1904 | this.context.lineWidth = 1; |
---|
| 1905 | var len = (this.coords.length / 2); |
---|
| 1906 | |
---|
| 1907 | for (var i=0; i<len; ++i) { |
---|
| 1908 | if (i == 0) { |
---|
| 1909 | this.context.moveTo(this.coords[i][0], this.coords[i][1]) |
---|
| 1910 | } else { |
---|
| 1911 | this.context.lineTo(this.coords[i][0], this.coords[i][1]) |
---|
| 1912 | } |
---|
| 1913 | } |
---|
| 1914 | |
---|
| 1915 | for (var i=this.coords.length - 1; i>=len; --i) { |
---|
| 1916 | this.context.lineTo(this.coords[i][0], this.coords[i][1]) |
---|
| 1917 | } |
---|
| 1918 | this.context.stroke(); |
---|
| 1919 | this.context.fill(); |
---|
| 1920 | } |
---|
| 1921 | } |
---|
| 1922 | |
---|
| 1923 | |
---|
| 1924 | /** |
---|
| 1925 | * Redraws the line with the correct line width etc |
---|
| 1926 | * |
---|
| 1927 | * @param array coords The coordinates of the line |
---|
| 1928 | */ |
---|
| 1929 | RGraph.Line.prototype.RedrawLine = function (coords, color, linewidth) |
---|
| 1930 | { |
---|
| 1931 | if (this.Get('chart.noredraw')) { |
---|
| 1932 | return; |
---|
| 1933 | } |
---|
| 1934 | |
---|
| 1935 | this.context.beginPath(); |
---|
| 1936 | this.context.strokeStyle = (typeof(color) == 'object' && color ? color[0] : color); |
---|
| 1937 | this.context.lineWidth = linewidth; |
---|
| 1938 | |
---|
| 1939 | var len = coords.length; |
---|
| 1940 | var width = RGraph.GetWidth(this); |
---|
| 1941 | var height = RGraph.GetHeight(this); |
---|
| 1942 | var penUp = false; |
---|
| 1943 | |
---|
| 1944 | for (var i=0; i<len; ++i) { |
---|
| 1945 | |
---|
| 1946 | var xPos = coords[i][0]; |
---|
| 1947 | var yPos = coords[i][1]; |
---|
| 1948 | |
---|
| 1949 | if (i > 0) { |
---|
| 1950 | var prevX = coords[i - 1][0]; |
---|
| 1951 | var prevY = coords[i - 1][1]; |
---|
| 1952 | } |
---|
| 1953 | |
---|
| 1954 | |
---|
| 1955 | if (( |
---|
| 1956 | (i == 0 && coords[i]) |
---|
| 1957 | || (yPos < this.gutterTop) |
---|
| 1958 | || (prevY < this.gutterTop) |
---|
| 1959 | || (yPos > (height - this.gutterBottom)) |
---|
| 1960 | || (i > 0 && prevX > (width - this.gutterRight)) |
---|
| 1961 | || (i > 0 && prevY > (height - this.gutterBottom)) |
---|
| 1962 | || prevY == null |
---|
| 1963 | || penUp == true |
---|
| 1964 | ) && (!this.Get('chart.outofbounds') || yPos == null || prevY == null) ) { |
---|
| 1965 | |
---|
| 1966 | this.context.moveTo(coords[i][0], coords[i][1]); |
---|
| 1967 | |
---|
| 1968 | penUp = false; |
---|
| 1969 | |
---|
| 1970 | } else { |
---|
| 1971 | |
---|
| 1972 | if (this.Get('chart.stepped') && i > 0) { |
---|
| 1973 | this.context.lineTo(coords[i][0], coords[i - 1][1]); |
---|
| 1974 | } |
---|
| 1975 | |
---|
| 1976 | // Don't draw the last bit of a stepped chart. Now DO |
---|
| 1977 | //if (!this.Get('chart.stepped') || i < (coords.length - 1)) { |
---|
| 1978 | this.context.lineTo(coords[i][0], coords[i][1]); |
---|
| 1979 | //} |
---|
| 1980 | penUp = false; |
---|
| 1981 | } |
---|
| 1982 | } |
---|
| 1983 | |
---|
| 1984 | /** |
---|
| 1985 | * If two colors are specified instead of one, go over the up bits |
---|
| 1986 | */ |
---|
| 1987 | if (this.Get('chart.colors.alternate') && typeof(color) == 'object' && color[0] && color[1]) { |
---|
| 1988 | for (var i=1; i<len; ++i) { |
---|
| 1989 | |
---|
| 1990 | var prevX = coords[i - 1][0]; |
---|
| 1991 | var prevY = coords[i - 1][1]; |
---|
| 1992 | |
---|
| 1993 | this.context.beginPath(); |
---|
| 1994 | this.context.strokeStyle = color[coords[i][1] < prevY ? 0 : 1]; |
---|
| 1995 | this.context.lineWidth = this.Get('chart.linewidth'); |
---|
| 1996 | this.context.moveTo(prevX, prevY); |
---|
| 1997 | this.context.lineTo(coords[i][0], coords[i][1]); |
---|
| 1998 | this.context.stroke(); |
---|
| 1999 | } |
---|
| 2000 | } |
---|
| 2001 | } |
---|
| 2002 | |
---|
| 2003 | |
---|
| 2004 | /** |
---|
| 2005 | * This function is used by MSIE only to manually draw the shadow |
---|
| 2006 | * |
---|
| 2007 | * @param array coords The coords for the line |
---|
| 2008 | */ |
---|
| 2009 | RGraph.Line.prototype.DrawIEShadow = function (coords, color) |
---|
| 2010 | { |
---|
| 2011 | var offsetx = this.Get('chart.shadow.offsetx'); |
---|
| 2012 | var offsety = this.Get('chart.shadow.offsety'); |
---|
| 2013 | |
---|
| 2014 | this.context.lineWidth = this.Get('chart.linewidth'); |
---|
| 2015 | this.context.strokeStyle = color; |
---|
| 2016 | this.context.beginPath(); |
---|
| 2017 | |
---|
| 2018 | for (var i=0; i<coords.length; ++i) { |
---|
| 2019 | if (i == 0) { |
---|
| 2020 | this.context.moveTo(coords[i][0] + offsetx, coords[i][1] + offsety); |
---|
| 2021 | } else { |
---|
| 2022 | this.context.lineTo(coords[i][0] + offsetx, coords[i][1] + offsety); |
---|
| 2023 | } |
---|
| 2024 | } |
---|
| 2025 | |
---|
| 2026 | this.context.stroke(); |
---|
| 2027 | } |
---|
| 2028 | |
---|
| 2029 | |
---|
| 2030 | /** |
---|
| 2031 | * Draw the backdrop |
---|
| 2032 | */ |
---|
| 2033 | RGraph.Line.prototype.DrawBackdrop = function (coords, color) |
---|
| 2034 | { |
---|
| 2035 | var size = this.Get('chart.backdrop.size'); |
---|
| 2036 | this.context.lineWidth = size; |
---|
| 2037 | this.context.globalAlpha = this.Get('chart.backdrop.alpha'); |
---|
| 2038 | this.context.strokeStyle = color; |
---|
| 2039 | this.context.lineJoin = 'miter'; |
---|
| 2040 | |
---|
| 2041 | this.context.beginPath(); |
---|
| 2042 | this.context.moveTo(coords[0][0], coords[0][1]); |
---|
| 2043 | for (var j=1; j<coords.length; ++j) { |
---|
| 2044 | this.context.lineTo(coords[j][0], coords[j][1]); |
---|
| 2045 | } |
---|
| 2046 | |
---|
| 2047 | this.context.stroke(); |
---|
| 2048 | |
---|
| 2049 | // Reset the alpha value |
---|
| 2050 | this.context.globalAlpha = 1; |
---|
| 2051 | this.context.lineJoin = 'round'; |
---|
| 2052 | RGraph.NoShadow(this); |
---|
| 2053 | } |
---|
| 2054 | |
---|
| 2055 | |
---|
| 2056 | /** |
---|
| 2057 | * Returns the linewidth |
---|
| 2058 | */ |
---|
| 2059 | RGraph.Line.prototype.GetLineWidth = function (i) |
---|
| 2060 | { |
---|
| 2061 | var linewidth = this.Get('chart.linewidth'); |
---|
| 2062 | |
---|
| 2063 | if (typeof(linewidth) == 'number') { |
---|
| 2064 | return linewidth; |
---|
| 2065 | |
---|
| 2066 | } else if (typeof(linewidth) == 'object') { |
---|
| 2067 | if (linewidth[i]) { |
---|
| 2068 | return linewidth[i]; |
---|
| 2069 | } else { |
---|
| 2070 | return linewidth[0]; |
---|
| 2071 | } |
---|
| 2072 | |
---|
| 2073 | alert('[LINE] Error! chart.linewidth should be a single number or an array of one or more numbers'); |
---|
| 2074 | } |
---|
| 2075 | } |
---|
| 2076 | |
---|
| 2077 | |
---|
| 2078 | /** |
---|
| 2079 | * The getPoint() method - used to get the point the mouse is currently over, if any |
---|
| 2080 | * |
---|
| 2081 | * @param object e The event object |
---|
| 2082 | */ |
---|
| 2083 | RGraph.Line.prototype.getPoint = function (e) |
---|
| 2084 | { |
---|
| 2085 | var canvas = e.target; |
---|
| 2086 | var obj = canvas.__object__; |
---|
| 2087 | var context = obj.context; |
---|
| 2088 | var mouseXY = RGraph.getMouseXY(e); |
---|
| 2089 | var mouseX = mouseXY[0]; |
---|
| 2090 | var mouseY = mouseXY[1]; |
---|
| 2091 | |
---|
| 2092 | for (var i=0; i<obj.coords.length; ++i) { |
---|
| 2093 | |
---|
| 2094 | var xCoord = obj.coords[i][0]; |
---|
| 2095 | var yCoord = obj.coords[i][1]; |
---|
| 2096 | |
---|
| 2097 | if ( mouseX <= (xCoord + 5) |
---|
| 2098 | && mouseX >= (xCoord - 5) |
---|
| 2099 | && mouseY <= (yCoord + 5) |
---|
| 2100 | && mouseY >= (yCoord - 5) |
---|
| 2101 | ) { |
---|
| 2102 | |
---|
| 2103 | return [obj, xCoord, yCoord, i]; |
---|
| 2104 | } |
---|
| 2105 | } |
---|
| 2106 | } |
---|
| 2107 | |
---|
| 2108 | |
---|
| 2109 | /** |
---|
| 2110 | * Draws the above line labels |
---|
| 2111 | */ |
---|
| 2112 | RGraph.Line.prototype.DrawAboveLabels = function () |
---|
| 2113 | { |
---|
| 2114 | var context = this.context; |
---|
| 2115 | var size = this.Get('chart.labels.above.size'); |
---|
| 2116 | var font = this.Get('chart.text.font'); |
---|
| 2117 | var units_pre = this.Get('chart.units.pre'); |
---|
| 2118 | var units_post = this.Get('chart.units.post'); |
---|
| 2119 | |
---|
| 2120 | context.beginPath(); |
---|
| 2121 | |
---|
| 2122 | // Don't need to check that chart.labels.above is enabled here, it's been done already |
---|
| 2123 | for (var i=0; i<this.coords.length; ++i) { |
---|
| 2124 | var coords = this.coords[i]; |
---|
| 2125 | |
---|
| 2126 | RGraph.Text(context, font, size, coords[0], coords[1] - 5 - size, RGraph.number_format(this, this.data_arr[i], units_pre, units_post), 'center', 'center', true, null, 'rgba(255, 255, 255, 0.7)'); |
---|
| 2127 | } |
---|
| 2128 | |
---|
| 2129 | context.fill(); |
---|
| 2130 | } |
---|