[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 scatter graph 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 | */ |
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| 23 | RGraph.Scatter = function (id, data) |
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| 24 | { |
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| 25 | // Get the canvas and context objects |
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| 26 | this.id = id; |
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| 27 | this.canvas = document.getElementById(id); |
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| 28 | this.canvas.__object__ = this; |
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| 29 | this.context = this.canvas.getContext ? this.canvas.getContext("2d") : null; |
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| 30 | this.max = 0; |
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| 31 | this.coords = []; |
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| 32 | this.data = []; |
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| 33 | this.type = 'scatter'; |
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| 34 | this.isRGraph = true; |
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| 35 | |
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| 36 | |
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| 37 | /** |
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| 38 | * Compatibility with older browsers |
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| 39 | */ |
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| 40 | RGraph.OldBrowserCompat(this.context); |
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| 41 | |
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| 42 | |
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| 43 | // Various config properties |
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| 44 | this.properties = { |
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| 45 | 'chart.background.barcolor1': 'rgba(0,0,0,0)', |
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| 46 | 'chart.background.barcolor2': 'rgba(0,0,0,0)', |
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| 47 | 'chart.background.grid': true, |
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| 48 | 'chart.background.grid.width': 1, |
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| 49 | 'chart.background.grid.color': '#ddd', |
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| 50 | 'chart.background.grid.hsize': 20, |
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| 51 | 'chart.background.grid.vsize': 20, |
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| 52 | 'chart.background.hbars': null, |
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| 53 | 'chart.background.vbars': null, |
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| 54 | 'chart.background.grid.vlines': true, |
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| 55 | 'chart.background.grid.hlines': true, |
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| 56 | 'chart.background.grid.border': true, |
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| 57 | 'chart.background.grid.autofit':false, |
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| 58 | 'chart.background.grid.autofit.numhlines': 7, |
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| 59 | 'chart.background.grid.autofit.numvlines': 20, |
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| 60 | 'chart.text.size': 10, |
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| 61 | 'chart.text.angle': 0, |
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| 62 | 'chart.text.color': 'black', |
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| 63 | 'chart.text.font': 'Verdana', |
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| 64 | 'chart.tooltips.effect': 'fade', |
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| 65 | 'chart.tooltips.hotspot': 3, |
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| 66 | 'chart.tooltips.css.class': 'RGraph_tooltip', |
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| 67 | 'chart.tooltips.highlight': true, |
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| 68 | 'chart.tooltips.coords.adjust': [0,0], |
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| 69 | 'chart.units.pre': '', |
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| 70 | 'chart.units.post': '', |
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| 71 | 'chart.tickmarks': 'cross', |
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| 72 | 'chart.ticksize': 5, |
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| 73 | 'chart.xticks': true, |
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| 74 | 'chart.xaxis': true, |
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| 75 | 'chart.gutter.left': 25, |
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| 76 | 'chart.gutter.right': 25, |
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| 77 | 'chart.gutter.top': 25, |
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| 78 | 'chart.gutter.bottom': 25, |
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| 79 | 'chart.xmax': 0, |
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| 80 | 'chart.ymax': null, |
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| 81 | 'chart.ymin': null, |
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| 82 | 'chart.scale.decimals': null, |
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| 83 | 'chart.scale.point': '.', |
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| 84 | 'chart.scale.thousand': ',', |
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| 85 | 'chart.title': '', |
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| 86 | 'chart.title.background': null, |
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| 87 | 'chart.title.hpos': null, |
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| 88 | 'chart.title.vpos': null, |
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| 89 | 'chart.title.xaxis': '', |
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| 90 | 'chart.title.yaxis': '', |
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| 91 | 'chart.title.xaxis.pos': 0.25, |
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| 92 | 'chart.title.yaxis.pos': 0.25, |
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| 93 | 'chart.labels': [], |
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| 94 | 'chart.labels.ingraph': null, |
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| 95 | 'chart.labels.above': false, |
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| 96 | 'chart.labels.above.size': 8, |
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| 97 | 'chart.labels.above.decimals': 0, |
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| 98 | 'chart.ylabels': true, |
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| 99 | 'chart.ylabels.count': 5, |
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| 100 | 'chart.ylabels.invert': false, |
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| 101 | 'chart.contextmenu': null, |
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| 102 | 'chart.defaultcolor': 'black', |
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| 103 | 'chart.xaxispos': 'bottom', |
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| 104 | 'chart.yaxispos': 'left', |
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| 105 | 'chart.noendxtick': false, |
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| 106 | 'chart.crosshairs': false, |
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| 107 | 'chart.crosshairs.color': '#333', |
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| 108 | 'chart.crosshairs.linewidth': 1, |
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| 109 | 'chart.crosshairs.coords': false, |
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| 110 | 'chart.crosshairs.coords.fixed':true, |
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| 111 | 'chart.crosshairs.coords.fadeout':false, |
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| 112 | 'chart.crosshairs.coords.labels.x': 'X', |
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| 113 | 'chart.crosshairs.coords.labels.y': 'Y', |
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| 114 | 'chart.annotatable': false, |
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| 115 | 'chart.annotate.color': 'black', |
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| 116 | 'chart.line': false, |
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| 117 | 'chart.line.linewidth': 1, |
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| 118 | 'chart.line.colors': ['green', 'red'], |
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| 119 | 'chart.line.shadow.color': 'rgba(0,0,0,0)', |
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| 120 | 'chart.line.shadow.blur': 2, |
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| 121 | 'chart.line.shadow.offsetx': 3, |
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| 122 | 'chart.line.shadow.offsety': 3, |
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| 123 | 'chart.line.stepped': false, |
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| 124 | 'chart.noaxes': false, |
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| 125 | 'chart.key': [], |
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| 126 | 'chart.key.background': 'white', |
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| 127 | 'chart.key.position': 'graph', |
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| 128 | 'chart.key.halign': 'right', |
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| 129 | 'chart.key.shadow': false, |
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| 130 | 'chart.key.shadow.color': '#666', |
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| 131 | 'chart.key.shadow.blur': 3, |
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| 132 | 'chart.key.shadow.offsetx': 2, |
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| 133 | 'chart.key.shadow.offsety': 2, |
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| 134 | 'chart.key.position.gutter.boxed': true, |
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| 135 | 'chart.key.position.x': null, |
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| 136 | 'chart.key.position.y': null, |
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| 137 | 'chart.key.color.shape': 'square', |
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| 138 | 'chart.key.rounded': true, |
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| 139 | 'chart.key.linewidth': 1, |
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| 140 | 'chart.axis.color': 'black', |
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| 141 | 'chart.zoom.factor': 1.5, |
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| 142 | 'chart.zoom.fade.in': true, |
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| 143 | 'chart.zoom.fade.out': true, |
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| 144 | 'chart.zoom.hdir': 'right', |
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| 145 | 'chart.zoom.vdir': 'down', |
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| 146 | 'chart.zoom.frames': 10, |
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| 147 | 'chart.zoom.delay': 50, |
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| 148 | 'chart.zoom.shadow': true, |
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| 149 | 'chart.zoom.mode': 'canvas', |
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| 150 | 'chart.zoom.thumbnail.width': 75, |
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| 151 | 'chart.zoom.thumbnail.height': 75, |
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| 152 | 'chart.zoom.background': true, |
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| 153 | 'chart.zoom.action': 'zoom', |
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| 154 | 'chart.boxplot.width': 8, |
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| 155 | 'chart.resizable': false, |
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| 156 | 'chart.resize.handle.adjust': [0,0], |
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| 157 | 'chart.resize.handle.background': null, |
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| 158 | 'chart.xmin': 0, |
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| 159 | 'chart.labels.specific.align': 'left' |
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| 160 | } |
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| 161 | |
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| 162 | // Handle multiple datasets being given as one argument |
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| 163 | if (arguments[1][0] && arguments[1][0][0] && typeof(arguments[1][0][0][0]) == 'number') { |
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| 164 | // Store the data set(s) |
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| 165 | for (var i=0; i<arguments[1].length; ++i) { |
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| 166 | this.data[i] = arguments[1][i]; |
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| 167 | } |
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| 168 | |
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| 169 | // Handle multiple data sets being supplied as seperate arguments |
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| 170 | } else { |
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| 171 | // Store the data set(s) |
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| 172 | for (var i=1; i<arguments.length; ++i) { |
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| 173 | this.data[i - 1] = arguments[i]; |
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| 174 | } |
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| 175 | } |
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| 176 | |
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| 177 | // Check for support |
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| 178 | if (!this.canvas) { |
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| 179 | alert('[SCATTER] No canvas support'); |
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| 180 | return; |
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| 181 | } |
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| 182 | |
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| 183 | |
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| 184 | /** |
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| 185 | * Set the .getShape commonly named method |
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| 186 | */ |
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| 187 | this.getShape = this.getPoint; |
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| 188 | } |
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| 189 | |
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| 190 | |
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| 191 | /** |
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| 192 | * A simple setter |
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| 193 | * |
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| 194 | * @param string name The name of the property to set |
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| 195 | * @param string value The value of the property |
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| 196 | */ |
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| 197 | RGraph.Scatter.prototype.Set = function (name, value) |
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| 198 | { |
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| 199 | /** |
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| 200 | * This is here because the key expects a name of "chart.colors" |
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| 201 | */ |
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| 202 | if (name == 'chart.line.colors') { |
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| 203 | this.properties['chart.colors'] = value; |
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| 204 | } |
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| 205 | |
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| 206 | /** |
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| 207 | * Allow compatibility with older property names |
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| 208 | */ |
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| 209 | if (name == 'chart.tooltip.hotspot') { |
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| 210 | name = 'chart.tooltips.hotspot'; |
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| 211 | } |
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| 212 | |
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| 213 | /** |
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| 214 | * chart.yaxispos should be left or right |
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| 215 | */ |
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| 216 | if (name == 'chart.yaxispos' && value != 'left' && value != 'right') { |
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| 217 | alert("[SCATTER] chart.yaxispos should be left or right. You've set it to: '" + value + "' Changing it to left"); |
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| 218 | value = 'left'; |
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| 219 | } |
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| 220 | |
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| 221 | /** |
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| 222 | * Check for xaxispos |
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| 223 | */ |
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| 224 | if (name == 'chart.xaxispos' ) { |
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| 225 | if (value != 'bottom' && value != 'center') { |
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| 226 | alert('[SCATTER] (' + this.id + ') chart.xaxispos should be center or bottom. Tried to set it to: ' + value + ' Changing it to center'); |
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| 227 | value = 'center'; |
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| 228 | } |
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| 229 | } |
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| 230 | |
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| 231 | this.properties[name.toLowerCase()] = value; |
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| 232 | } |
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| 233 | |
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| 234 | |
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| 235 | /** |
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| 236 | * A simple getter |
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| 237 | * |
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| 238 | * @param string name The name of the property to set |
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| 239 | */ |
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| 240 | RGraph.Scatter.prototype.Get = function (name) |
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| 241 | { |
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| 242 | return this.properties[name]; |
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| 243 | } |
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| 244 | |
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| 245 | |
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| 246 | /** |
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| 247 | * The function you call to draw the line chart |
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| 248 | */ |
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| 249 | RGraph.Scatter.prototype.Draw = function () |
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| 250 | { |
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| 251 | // MUST be the first thing done! |
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| 252 | if (typeof(this.Get('chart.background.image')) == 'string' && !this.__background_image__) { |
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| 253 | RGraph.DrawBackgroundImage(this); |
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| 254 | return; |
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| 255 | } |
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| 256 | |
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| 257 | /** |
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| 258 | * Fire the onbeforedraw event |
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| 259 | */ |
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| 260 | RGraph.FireCustomEvent(this, 'onbeforedraw'); |
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| 261 | |
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| 262 | /** |
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| 263 | * Clear all of this canvases event handlers (the ones installed by RGraph) |
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| 264 | */ |
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| 265 | RGraph.ClearEventListeners(this.id); |
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| 266 | |
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| 267 | /** |
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| 268 | * This is new in May 2011 and facilitates indiviual gutter settings, |
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| 269 | * eg chart.gutter.left |
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| 270 | */ |
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| 271 | this.gutterLeft = this.Get('chart.gutter.left'); |
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| 272 | this.gutterRight = this.Get('chart.gutter.right'); |
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| 273 | this.gutterTop = this.Get('chart.gutter.top'); |
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| 274 | this.gutterBottom = this.Get('chart.gutter.bottom'); |
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| 275 | |
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| 276 | // Go through all the data points and see if a tooltip has been given |
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| 277 | this.Set('chart.tooltips', false); |
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| 278 | this.hasTooltips = false; |
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| 279 | var overHotspot = false; |
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| 280 | |
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| 281 | // Reset the coords array |
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| 282 | this.coords = []; |
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| 283 | |
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| 284 | if (!RGraph.isIE8()) { |
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| 285 | for (var i=0; i<this.data.length; ++i) { |
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| 286 | for (var j =0;j<this.data[i].length; ++j) { |
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| 287 | if (this.data[i][j] && this.data[i][j][3] && typeof(this.data[i][j][3]) == 'string' && this.data[i][j][3].length) { |
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| 288 | this.Set('chart.tooltips', [1]); // An array |
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| 289 | this.hasTooltips = true; |
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| 290 | } |
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| 291 | } |
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| 292 | } |
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| 293 | } |
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| 294 | |
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| 295 | // Reset the maximum value |
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| 296 | this.max = 0; |
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| 297 | |
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| 298 | // Work out the maximum Y value |
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| 299 | if (this.Get('chart.ymax') && this.Get('chart.ymax') > 0) { |
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| 300 | |
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| 301 | this.scale = []; |
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| 302 | this.max = this.Get('chart.ymax'); |
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| 303 | this.min = this.Get('chart.ymin') ? this.Get('chart.ymin') : 0; |
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| 304 | |
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| 305 | this.scale[0] = ((this.max - this.min) * (1/5)) + this.min; |
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| 306 | this.scale[1] = ((this.max - this.min) * (2/5)) + this.min; |
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| 307 | this.scale[2] = ((this.max - this.min) * (3/5)) + this.min; |
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| 308 | this.scale[3] = ((this.max - this.min) * (4/5)) + this.min; |
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| 309 | this.scale[4] = ((this.max - this.min) * (5/5)) + this.min; |
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| 310 | |
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| 311 | var decimals = this.Get('chart.scale.decimals'); |
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| 312 | |
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| 313 | this.scale = [ |
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| 314 | Number(this.scale[0]).toFixed(decimals), |
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| 315 | Number(this.scale[1]).toFixed(decimals), |
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| 316 | Number(this.scale[2]).toFixed(decimals), |
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| 317 | Number(this.scale[3]).toFixed(decimals), |
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| 318 | Number(this.scale[4]).toFixed(decimals) |
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| 319 | ]; |
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| 320 | |
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| 321 | } else { |
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| 322 | |
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| 323 | var i = 0; |
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| 324 | var j = 0; |
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| 325 | |
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| 326 | for (i=0; i<this.data.length; ++i) { |
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| 327 | for (j=0; j<this.data[i].length; ++j) { |
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| 328 | this.max = Math.max(this.max, typeof(this.data[i][j][1]) == 'object' ? RGraph.array_max(this.data[i][j][1]) : Math.abs(this.data[i][j][1])); |
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| 329 | } |
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| 330 | } |
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| 331 | |
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| 332 | this.scale = RGraph.getScale(this.max, this); |
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| 333 | |
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| 334 | this.max = this.scale[4]; |
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| 335 | this.min = this.Get('chart.ymin') ? this.Get('chart.ymin') : 0; |
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| 336 | |
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| 337 | if (this.min) { |
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| 338 | this.scale[0] = ((this.max - this.min) * (1/5)) + this.min; |
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| 339 | this.scale[1] = ((this.max - this.min) * (2/5)) + this.min; |
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| 340 | this.scale[2] = ((this.max - this.min) * (3/5)) + this.min; |
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| 341 | this.scale[3] = ((this.max - this.min) * (4/5)) + this.min; |
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| 342 | this.scale[4] = ((this.max - this.min) * (5/5)) + this.min; |
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| 343 | } |
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| 344 | |
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| 345 | |
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| 346 | if (typeof(this.Get('chart.scale.decimals')) == 'number') { |
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| 347 | var decimals = this.Get('chart.scale.decimals'); |
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| 348 | |
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| 349 | this.scale = [ |
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| 350 | Number(this.scale[0]).toFixed(decimals), |
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| 351 | Number(this.scale[1]).toFixed(decimals), |
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| 352 | Number(this.scale[2]).toFixed(decimals), |
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| 353 | Number(this.scale[3]).toFixed(decimals), |
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| 354 | Number(this.scale[4]).toFixed(decimals) |
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| 355 | ]; |
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| 356 | } |
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| 357 | } |
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| 358 | |
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| 359 | this.grapharea = RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom; |
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| 360 | |
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| 361 | // Progressively Draw the chart |
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| 362 | RGraph.background.Draw(this); |
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| 363 | |
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| 364 | /** |
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| 365 | * Draw any horizontal bars that have been specified |
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| 366 | */ |
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| 367 | if (this.Get('chart.background.hbars') && this.Get('chart.background.hbars').length) { |
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| 368 | RGraph.DrawBars(this); |
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| 369 | } |
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| 370 | |
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| 371 | /** |
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| 372 | * Draw any vertical bars that have been specified |
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| 373 | */ |
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| 374 | if (this.Get('chart.background.vbars') && this.Get('chart.background.vbars').length) { |
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| 375 | this.DrawVBars(); |
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| 376 | } |
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| 377 | |
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| 378 | if (!this.Get('chart.noaxes')) { |
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| 379 | this.DrawAxes(); |
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| 380 | } |
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| 381 | |
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| 382 | this.DrawLabels(); |
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| 383 | |
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| 384 | i = 0; |
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| 385 | for(i=0; i<this.data.length; ++i) { |
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| 386 | this.DrawMarks(i); |
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| 387 | |
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| 388 | // Set the shadow |
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| 389 | this.context.shadowColor = this.Get('chart.line.shadow.color'); |
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| 390 | this.context.shadowOffsetX = this.Get('chart.line.shadow.offsetx'); |
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| 391 | this.context.shadowOffsetY = this.Get('chart.line.shadow.offsety'); |
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| 392 | this.context.shadowBlur = this.Get('chart.line.shadow.blur'); |
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| 393 | |
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| 394 | this.DrawLine(i); |
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| 395 | |
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| 396 | // Turn the shadow off |
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| 397 | RGraph.NoShadow(this); |
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| 398 | } |
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| 399 | |
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| 400 | |
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| 401 | if (this.Get('chart.line')) { |
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| 402 | for (var i=0;i<this.data.length; ++i) { |
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| 403 | this.DrawMarks(i); // Call this again so the tickmarks appear over the line |
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| 404 | } |
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| 405 | } |
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| 406 | |
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| 407 | |
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| 408 | |
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| 409 | /** |
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| 410 | * Setup the context menu if required |
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| 411 | */ |
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| 412 | if (this.Get('chart.contextmenu')) { |
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| 413 | RGraph.ShowContext(this); |
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| 414 | } |
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| 415 | |
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| 416 | /** |
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| 417 | * Install the event handler for tooltips |
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| 418 | */ |
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| 419 | if (this.hasTooltips) { |
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| 420 | |
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| 421 | /** |
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| 422 | * Register all charts |
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| 423 | */ |
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| 424 | RGraph.Register(this); |
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| 425 | |
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| 426 | var overHotspot = false; |
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| 427 | |
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| 428 | var canvas_onmousemove_func = function (e) |
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| 429 | { |
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| 430 | e = RGraph.FixEventObject(e); |
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| 431 | |
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| 432 | var canvas = e.target; |
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| 433 | var obj = canvas.__object__; |
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| 434 | var context = obj.context; |
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| 435 | var mouseCoords = RGraph.getMouseXY(e); |
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| 436 | var point = obj.getPoint(e); |
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| 437 | var overHotspot = false; |
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| 438 | |
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| 439 | if (point) { |
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| 440 | |
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| 441 | var __dataset__ = point[2]; |
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| 442 | var __index__ = point[3]; |
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| 443 | var __text__ = point[4]; |
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| 444 | var overHotspot = true; |
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| 445 | |
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| 446 | if (point[4]) { |
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| 447 | canvas.style.cursor = 'pointer'; |
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| 448 | |
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| 449 | if ( |
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| 450 | !RGraph.Registry.Get('chart.tooltip') || |
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| 451 | RGraph.Registry.Get('chart.tooltip').__text__ != __text__ || |
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| 452 | RGraph.Registry.Get('chart.tooltip').__index__ != __index__ || |
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| 453 | RGraph.Registry.Get('chart.tooltip').__dataset__ != __dataset__ |
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| 454 | ) { |
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| 455 | |
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| 456 | if (obj.Get('chart.tooltips.highlight')) { |
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| 457 | RGraph.Redraw(); |
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| 458 | } |
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| 459 | |
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| 460 | /** |
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| 461 | * Get the tooltip text |
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| 462 | */ |
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| 463 | if (typeof(__text__) == 'function') { |
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| 464 | var text = String(__text__(i)); |
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| 465 | |
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| 466 | } else { |
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| 467 | var text = String(__text__); |
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| 468 | } |
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| 469 | |
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| 470 | RGraph.Tooltip(canvas, text, e.pageX, e.pageY, __index__); |
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| 471 | |
---|
| 472 | RGraph.Registry.Get('chart.tooltip').__index__ = __index__; |
---|
| 473 | |
---|
| 474 | if (RGraph.Registry.Get('chart.tooltip')) { |
---|
| 475 | RGraph.Registry.Get('chart.tooltip').__dataset__ = __dataset__; |
---|
| 476 | } |
---|
| 477 | |
---|
| 478 | /** |
---|
| 479 | * Draw a circle around the mark |
---|
| 480 | */ |
---|
| 481 | if (obj.Get('chart.tooltips.highlight')) { |
---|
| 482 | context.beginPath(); |
---|
| 483 | context.fillStyle = 'rgba(255,255,255,0.5)'; |
---|
| 484 | context.arc(point[0], point[1], 3, 0, 6.28, 0); |
---|
| 485 | context.fill(); |
---|
| 486 | } |
---|
| 487 | } |
---|
| 488 | } |
---|
| 489 | } |
---|
| 490 | |
---|
| 491 | /** |
---|
| 492 | * Reset the pointer |
---|
| 493 | */ |
---|
| 494 | if (!overHotspot || !point[4]) { |
---|
| 495 | canvas.style.cursor = 'default'; |
---|
| 496 | } |
---|
| 497 | } |
---|
| 498 | this.canvas.addEventListener('mousemove', canvas_onmousemove_func, false); |
---|
| 499 | RGraph.AddEventListener(this.id, 'mousemove', canvas_onmousemove_func); |
---|
| 500 | } |
---|
| 501 | |
---|
| 502 | |
---|
| 503 | /** |
---|
| 504 | * Draw the key if necessary |
---|
| 505 | */ |
---|
| 506 | if (this.Get('chart.key') && this.Get('chart.key').length) { |
---|
| 507 | RGraph.DrawKey(this, this.Get('chart.key'), this.Get('chart.line.colors')); |
---|
| 508 | } |
---|
| 509 | |
---|
| 510 | |
---|
| 511 | /** |
---|
| 512 | * Draw " above" labels if enabled |
---|
| 513 | */ |
---|
| 514 | if (this.Get('chart.labels.above')) { |
---|
| 515 | this.DrawAboveLabels(); |
---|
| 516 | } |
---|
| 517 | |
---|
| 518 | /** |
---|
| 519 | * Draw the "in graph" labels, using the member function, NOT the shared function in RGraph.common.core.js |
---|
| 520 | */ |
---|
| 521 | this.DrawInGraphLabels(this); |
---|
| 522 | |
---|
| 523 | |
---|
| 524 | /** |
---|
| 525 | * Draw crosschairs |
---|
| 526 | */ |
---|
| 527 | RGraph.DrawCrosshairs(this); |
---|
| 528 | |
---|
| 529 | |
---|
| 530 | /** |
---|
| 531 | * If the canvas is annotatable, do install the event handlers |
---|
| 532 | */ |
---|
| 533 | if (this.Get('chart.annotatable')) { |
---|
| 534 | RGraph.Annotate(this); |
---|
| 535 | } |
---|
| 536 | |
---|
| 537 | /** |
---|
| 538 | * This bit shows the mini zoom window if requested |
---|
| 539 | */ |
---|
| 540 | if (this.Get('chart.zoom.mode') == 'thumbnail' || this.Get('chart.zoom.mode') == 'area') { |
---|
| 541 | RGraph.ShowZoomWindow(this); |
---|
| 542 | } |
---|
| 543 | |
---|
| 544 | |
---|
| 545 | /** |
---|
| 546 | * This function enables resizing |
---|
| 547 | */ |
---|
| 548 | if (this.Get('chart.resizable')) { |
---|
| 549 | RGraph.AllowResizing(this); |
---|
| 550 | } |
---|
| 551 | |
---|
| 552 | /** |
---|
| 553 | * Fire the RGraph ondraw event |
---|
| 554 | */ |
---|
| 555 | RGraph.FireCustomEvent(this, 'ondraw'); |
---|
| 556 | } |
---|
| 557 | |
---|
| 558 | |
---|
| 559 | /** |
---|
| 560 | * Draws the axes of the scatter graph |
---|
| 561 | */ |
---|
| 562 | RGraph.Scatter.prototype.DrawAxes = function () |
---|
| 563 | { |
---|
| 564 | var canvas = this.canvas; |
---|
| 565 | var context = this.context; |
---|
| 566 | var graphHeight = RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom; |
---|
| 567 | |
---|
| 568 | context.beginPath(); |
---|
| 569 | context.strokeStyle = this.Get('chart.axis.color'); |
---|
| 570 | context.lineWidth = 1; |
---|
| 571 | |
---|
| 572 | // Draw the Y axis |
---|
| 573 | if (this.Get('chart.yaxispos') == 'left') { |
---|
| 574 | context.moveTo(this.gutterLeft, this.gutterTop); |
---|
| 575 | context.lineTo(this.gutterLeft, RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 576 | } else { |
---|
| 577 | context.moveTo(RGraph.GetWidth(this) - this.gutterRight, this.gutterTop); |
---|
| 578 | context.lineTo(RGraph.GetWidth(this) - this.gutterRight, RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 579 | } |
---|
| 580 | |
---|
| 581 | |
---|
| 582 | // Draw the X axis |
---|
| 583 | if (this.Get('chart.xaxis')) { |
---|
| 584 | if (this.Get('chart.xaxispos') == 'center') { |
---|
| 585 | context.moveTo(this.gutterLeft, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) / 2)); |
---|
| 586 | context.lineTo(RGraph.GetWidth(this) - this.gutterRight, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) / 2)); |
---|
| 587 | } else { |
---|
| 588 | context.moveTo(this.gutterLeft, RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 589 | context.lineTo(RGraph.GetWidth(this) - this.gutterRight, RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 590 | } |
---|
| 591 | } |
---|
| 592 | |
---|
| 593 | /** |
---|
| 594 | * Draw the Y tickmarks |
---|
| 595 | */ |
---|
| 596 | for (y=this.gutterTop; y < RGraph.GetHeight(this) - this.gutterBottom + (this.Get('chart.xaxispos') == 'center' ? 1 : 0) ; y+=(graphHeight / 5) / 2) { |
---|
| 597 | |
---|
| 598 | // This is here to accomodate the X axis being at the center |
---|
| 599 | if (y == (this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) / 2)) ) continue; |
---|
| 600 | |
---|
| 601 | if (this.Get('chart.yaxispos') == 'left') { |
---|
| 602 | context.moveTo(this.gutterLeft, y); |
---|
| 603 | context.lineTo(this.gutterLeft - 3, y); |
---|
| 604 | } else { |
---|
| 605 | context.moveTo(RGraph.GetWidth(this) - this.gutterRight +3, y); |
---|
| 606 | context.lineTo(RGraph.GetWidth(this) - this.gutterRight, y); |
---|
| 607 | } |
---|
| 608 | } |
---|
| 609 | |
---|
| 610 | |
---|
| 611 | /** |
---|
| 612 | * Draw the X tickmarks |
---|
| 613 | */ |
---|
| 614 | if (this.Get('chart.xticks') && this.Get('chart.xaxis')) { |
---|
| 615 | |
---|
| 616 | var x = 0; |
---|
| 617 | var y = (this.Get('chart.xaxispos') == 'center') ? this.gutterTop + (this.grapharea / 2): (this.canvas.height - this.gutterBottom); |
---|
| 618 | this.xTickGap = (this.Get('chart.labels') && this.Get('chart.labels').length) ? ((this.canvas.width - this.gutterLeft - this.gutterRight ) / this.Get('chart.labels').length) : (this.canvas.width - this.gutterLeft - this.gutterRight) / 10; |
---|
| 619 | |
---|
| 620 | for (x = (this.gutterLeft + (this.Get('chart.yaxispos') == 'left' ? this.xTickGap : 0) ); |
---|
| 621 | x <= (this.canvas.width - this.gutterRight - (this.Get('chart.yaxispos') == 'left' ? 0 : 1)); |
---|
| 622 | x += this.xTickGap) { |
---|
| 623 | |
---|
| 624 | if (this.Get('chart.yaxispos') == 'left' && this.Get('chart.noendxtick') == true && x == (RGraph.GetWidth(this) - this.gutterLeft) ) { |
---|
| 625 | continue; |
---|
| 626 | } else if (this.Get('chart.yaxispos') == 'right' && this.Get('chart.noendxtick') == true && x == this.gutterLeft) { |
---|
| 627 | continue; |
---|
| 628 | } |
---|
| 629 | |
---|
| 630 | context.moveTo(x, y - (this.Get('chart.xaxispos') == 'center' ? 3 : 0)); |
---|
| 631 | context.lineTo(x, y + 3); |
---|
| 632 | } |
---|
| 633 | } |
---|
| 634 | |
---|
| 635 | context.stroke(); |
---|
| 636 | } |
---|
| 637 | |
---|
| 638 | |
---|
| 639 | |
---|
| 640 | |
---|
| 641 | |
---|
| 642 | |
---|
| 643 | |
---|
| 644 | |
---|
| 645 | |
---|
| 646 | |
---|
| 647 | |
---|
| 648 | /** |
---|
| 649 | * Draws the labels on the scatter graph |
---|
| 650 | */ |
---|
| 651 | RGraph.Scatter.prototype.DrawLabels = function () |
---|
| 652 | { |
---|
| 653 | this.context.fillStyle = this.Get('chart.text.color'); |
---|
| 654 | var font = this.Get('chart.text.font'); |
---|
| 655 | var xMin = this.Get('chart.xmin'); |
---|
| 656 | var xMax = this.Get('chart.xmax'); |
---|
| 657 | var yMax = this.scale[4]; |
---|
| 658 | var yMin = this.Get('chart.ymin'); |
---|
| 659 | var text_size = this.Get('chart.text.size'); |
---|
| 660 | var units_pre = this.Get('chart.units.pre'); |
---|
| 661 | var units_post = this.Get('chart.units.post'); |
---|
| 662 | var numYLabels = this.Get('chart.ylabels.count'); |
---|
| 663 | var invert = this.Get('chart.ylabels.invert'); |
---|
| 664 | var context = this.context; |
---|
| 665 | var canvas = this.canvas; |
---|
| 666 | |
---|
| 667 | this.halfTextHeight = text_size / 2; |
---|
| 668 | |
---|
| 669 | |
---|
| 670 | this.halfGraphHeight = (RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) / 2; |
---|
| 671 | |
---|
| 672 | /** |
---|
| 673 | * Draw the Y yaxis labels, be it at the top or center |
---|
| 674 | */ |
---|
| 675 | if (this.Get('chart.ylabels')) { |
---|
| 676 | |
---|
| 677 | var xPos = this.Get('chart.yaxispos') == 'left' ? this.gutterLeft - 5 : RGraph.GetWidth(this) - this.gutterRight + 5; |
---|
| 678 | var align = this.Get('chart.yaxispos') == 'right' ? 'left' : 'right'; |
---|
| 679 | |
---|
| 680 | if (this.Get('chart.xaxispos') == 'center') { |
---|
| 681 | |
---|
| 682 | |
---|
| 683 | /** |
---|
| 684 | * Specific Y labels |
---|
| 685 | */ |
---|
| 686 | if (typeof(this.Get('chart.ylabels.specific')) == 'object') { |
---|
| 687 | |
---|
| 688 | var labels = this.Get('chart.ylabels.specific'); |
---|
| 689 | |
---|
| 690 | for (var i=0; i<this.Get('chart.ylabels.specific').length; ++i) { |
---|
| 691 | var y = this.gutterTop + (i * (this.grapharea / (labels.length * 2) ) ); |
---|
| 692 | RGraph.Text(context, font, text_size, xPos, y, labels[i], 'center', align); |
---|
| 693 | } |
---|
| 694 | |
---|
| 695 | var reversed_labels = RGraph.array_reverse(labels); |
---|
| 696 | |
---|
| 697 | for (var i=0; i<reversed_labels.length; ++i) { |
---|
| 698 | var y = this.gutterTop + (this.grapharea / 2) + ((i+1) * (this.grapharea / (labels.length * 2) ) ); |
---|
| 699 | |
---|
| 700 | RGraph.Text(context, font, text_size, xPos, y, reversed_labels[i], 'center', align); |
---|
| 701 | } |
---|
| 702 | |
---|
| 703 | return; |
---|
| 704 | } |
---|
| 705 | |
---|
| 706 | |
---|
| 707 | if (numYLabels == 1 || numYLabels == 3 || numYLabels == 5) { |
---|
| 708 | // Draw the top halves labels |
---|
| 709 | RGraph.Text(context, font, text_size, xPos, this.gutterTop, RGraph.number_format(this, this.scale[4], units_pre, units_post), 'center', align); |
---|
| 710 | |
---|
| 711 | |
---|
| 712 | if (numYLabels >= 5) { |
---|
| 713 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (1/10) ), RGraph.number_format(this, this.scale[3], units_pre, units_post), 'center', align); |
---|
| 714 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (3/10) ), RGraph.number_format(this, this.scale[1], units_pre, units_post), 'center', align); |
---|
| 715 | } |
---|
| 716 | |
---|
| 717 | if (numYLabels >= 3) { |
---|
| 718 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (2/10) ), RGraph.number_format(this, this.scale[2], units_pre, units_post), 'center', align); |
---|
| 719 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (4/10) ), RGraph.number_format(this, this.scale[0], units_pre, units_post), 'center', align); |
---|
| 720 | } |
---|
| 721 | |
---|
| 722 | // Draw the bottom halves labels |
---|
| 723 | if (numYLabels >= 3) { |
---|
| 724 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (1/10) ) + this.halfGraphHeight, '-' + RGraph.number_format(this, this.scale[0], units_pre, units_post), 'center', align); |
---|
| 725 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (3/10) ) + this.halfGraphHeight, '-' + RGraph.number_format(this, this.scale[2], units_pre, units_post), 'center', align); |
---|
| 726 | } |
---|
| 727 | |
---|
| 728 | if (numYLabels == 5) { |
---|
| 729 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (2/10) ) + this.halfGraphHeight, '-' + RGraph.number_format(this, this.scale[1], units_pre, units_post), 'center', align); |
---|
| 730 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (4/10) ) + this.halfGraphHeight, '-' + RGraph.number_format(this, this.scale[3], units_pre, units_post), 'center', align); |
---|
| 731 | } |
---|
| 732 | |
---|
| 733 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (5/10) ) + this.halfGraphHeight, '-' + RGraph.number_format(this, this.scale[4], units_pre, units_post), 'center', align); |
---|
| 734 | |
---|
| 735 | } else if (numYLabels == 10) { |
---|
| 736 | // 10 Y labels |
---|
| 737 | var interval = (this.grapharea / numYLabels) / 2; |
---|
| 738 | |
---|
| 739 | for (var i=0; i<numYLabels; ++i) { |
---|
| 740 | RGraph.Text(context, font, text_size, xPos,this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (i/20) ),RGraph.number_format(this, |
---|
| 741 | |
---|
| 742 | (this.max - (this.max * (i/10))).toFixed(this.Get('chart.scale.decimals')), |
---|
| 743 | |
---|
| 744 | units_pre, units_post),'center', align); |
---|
| 745 | RGraph.Text(context, font, text_size, xPos,this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (i/20) ) + (this.grapharea / 2) + (this.grapharea / 20),'-' + RGraph.number_format(this, ((this.max * (i/10)) + (this.max * (1/10))).toFixed((this.Get('chart.scale.decimals'))), units_pre, units_post), 'center', align); |
---|
| 746 | } |
---|
| 747 | |
---|
| 748 | } else { |
---|
| 749 | alert('[SCATTER SCALE] Number of Y labels can be 1/3/5/10 only'); |
---|
| 750 | } |
---|
| 751 | |
---|
| 752 | } else { |
---|
| 753 | |
---|
| 754 | var xPos = this.Get('chart.yaxispos') == 'left' ? this.gutterLeft - 5 : RGraph.GetWidth(this) - this.gutterRight + 5; |
---|
| 755 | var align = this.Get('chart.yaxispos') == 'right' ? 'left' : 'right'; |
---|
| 756 | |
---|
| 757 | /** |
---|
| 758 | * Specific Y labels |
---|
| 759 | */ |
---|
| 760 | if (typeof(this.Get('chart.ylabels.specific')) == 'object' && this.Get('chart.ylabels.specific')) { |
---|
| 761 | |
---|
| 762 | var labels = this.Get('chart.ylabels.specific'); |
---|
| 763 | |
---|
| 764 | for (var i=0; i<this.Get('chart.ylabels.specific').length; ++i) { |
---|
| 765 | var y = this.gutterTop + (i * (this.grapharea / labels.length) ); |
---|
| 766 | |
---|
| 767 | RGraph.Text(context, font, text_size, xPos, y, labels[i], 'center', align); |
---|
| 768 | } |
---|
| 769 | |
---|
| 770 | return; |
---|
| 771 | } |
---|
| 772 | |
---|
| 773 | if (numYLabels == 1 || numYLabels == 3 || numYLabels == 5) { |
---|
| 774 | if (invert) { |
---|
| 775 | RGraph.Text(context, font, text_size, xPos, this.gutterTop, RGraph.number_format(this, 0, units_pre, units_post), 'center', align); |
---|
| 776 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (5/5) ), RGraph.number_format(this, this.scale[4], units_pre, units_post), 'center', align); |
---|
| 777 | |
---|
| 778 | if (numYLabels >= 5) { |
---|
| 779 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (2/5) ), RGraph.number_format(this, this.scale[1], units_pre, units_post), 'center', align); |
---|
| 780 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (4/5) ), RGraph.number_format(this, this.scale[3], units_pre, units_post), 'center', align); |
---|
| 781 | } |
---|
| 782 | |
---|
| 783 | if (numYLabels >= 3) { |
---|
| 784 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (3/5) ), RGraph.number_format(this, this.scale[2], units_pre, units_post), 'center', align); |
---|
| 785 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (1/5) ), RGraph.number_format(this, this.scale[0], units_pre, units_post), 'center', align); |
---|
| 786 | } |
---|
| 787 | } else { |
---|
| 788 | RGraph.Text(context, font, text_size, xPos, this.gutterTop, RGraph.number_format(this, this.scale[4], units_pre, units_post), 'center', align); |
---|
| 789 | |
---|
| 790 | if (numYLabels >= 5) { |
---|
| 791 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (1/5) ), RGraph.number_format(this, this.scale[3], units_pre, units_post), 'center', align); |
---|
| 792 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (3/5) ), RGraph.number_format(this, this.scale[1], units_pre, units_post), 'center', align); |
---|
| 793 | } |
---|
| 794 | |
---|
| 795 | if (numYLabels >= 3) { |
---|
| 796 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (2/5) ), RGraph.number_format(this, this.scale[2], units_pre, units_post), 'center', align); |
---|
| 797 | RGraph.Text(context, font, text_size, xPos, this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * (4/5) ), RGraph.number_format(this, this.scale[0], units_pre, units_post), 'center', align); |
---|
| 798 | } |
---|
| 799 | } |
---|
| 800 | } else if (numYLabels == 10) { |
---|
| 801 | var interval = (this.grapharea / numYLabels) / 2; |
---|
| 802 | if (invert) { |
---|
| 803 | for (var i=numYLabels; i>=0; --i) { |
---|
| 804 | RGraph.Text(context, font, text_size, xPos,this.gutterTop + ((RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom) * ((10-i)/10) ), |
---|
| 805 | |
---|
| 806 | RGraph.number_format(this,(this.max - (this.max * (i/10))).toFixed((this.Get('chart.scale.decimals'))), units_pre, units_post), |
---|
| 807 | |
---|
| 808 | 'center', align); |
---|
| 809 | } |
---|
| 810 | } else { |
---|
| 811 | // 10 Y labels |
---|
| 812 | for (var i=0; i<numYLabels; ++i) { |
---|
| 813 | |
---|
| 814 | RGraph.Text(context, font, text_size, xPos,this.gutterTop + ((this.canvas.height - this.gutterTop - this.gutterBottom) * (i/10) ), |
---|
| 815 | |
---|
| 816 | RGraph.number_format(this, |
---|
| 817 | (this.max - ((this.max - this.min) * (i/10))).toFixed((this.Get('chart.scale.decimals'))), |
---|
| 818 | units_pre, |
---|
| 819 | units_post), |
---|
| 820 | 'center', align); |
---|
| 821 | } |
---|
| 822 | } |
---|
| 823 | } else { |
---|
| 824 | alert('[SCATTER SCALE] Number of Y labels can be 1/3/5/10 only'); |
---|
| 825 | } |
---|
| 826 | |
---|
| 827 | if (this.Get('chart.ymin')) { |
---|
| 828 | RGraph.Text(context, font, text_size, xPos, this.canvas.height - this.gutterBottom,RGraph.number_format(this, this.Get('chart.ymin').toFixed(this.Get('chart.scale.decimals')), units_pre, units_post),'center', align); |
---|
| 829 | } |
---|
| 830 | } |
---|
| 831 | } |
---|
| 832 | |
---|
| 833 | |
---|
| 834 | |
---|
| 835 | |
---|
| 836 | |
---|
| 837 | |
---|
| 838 | // Put the text on the X axis |
---|
| 839 | var graphArea = RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight; |
---|
| 840 | var xInterval = graphArea / this.Get('chart.labels').length; |
---|
| 841 | var xPos = this.gutterLeft; |
---|
| 842 | var yPos = (RGraph.GetHeight(this) - this.gutterBottom) + 15; |
---|
| 843 | var labels = this.Get('chart.labels'); |
---|
| 844 | |
---|
| 845 | /** |
---|
| 846 | * Text angle |
---|
| 847 | */ |
---|
| 848 | var angle = 0; |
---|
| 849 | var valign = null; |
---|
| 850 | var halign = 'center'; |
---|
| 851 | |
---|
| 852 | if (this.Get('chart.text.angle') > 0) { |
---|
| 853 | angle = -1 * this.Get('chart.text.angle'); |
---|
| 854 | valign = 'center'; |
---|
| 855 | halign = 'right'; |
---|
| 856 | yPos -= 10; |
---|
| 857 | } |
---|
| 858 | |
---|
| 859 | for (i=0; i<labels.length; ++i) { |
---|
| 860 | |
---|
| 861 | if (typeof(labels[i]) == 'object') { |
---|
| 862 | |
---|
| 863 | if (this.Get('chart.labels.specific.align') == 'center') { |
---|
| 864 | var rightEdge = 0; |
---|
| 865 | |
---|
| 866 | if (labels[i+1] && labels[i+1][1]) { |
---|
| 867 | rightEdge = labels[i+1][1]; |
---|
| 868 | } else { |
---|
| 869 | rightEdge = this.Get('chart.xmax'); |
---|
| 870 | } |
---|
| 871 | |
---|
| 872 | var offset = (rightEdge - labels[i][1]) / 2; |
---|
| 873 | |
---|
| 874 | } else { |
---|
| 875 | var offset = 0; |
---|
| 876 | } |
---|
| 877 | |
---|
| 878 | |
---|
| 879 | RGraph.Text(context, |
---|
| 880 | font, |
---|
| 881 | this.Get('chart.text.size'), |
---|
| 882 | this.gutterLeft + (graphArea * ((labels[i][1] - xMin + offset) / (this.Get('chart.xmax') - xMin))) + 5, |
---|
| 883 | yPos, |
---|
| 884 | String(labels[i][0]), |
---|
| 885 | valign, |
---|
| 886 | angle != 0 ? 'right' : (this.Get('chart.labels.specific.align') == 'center' ? 'center' : 'left'), |
---|
| 887 | null, |
---|
| 888 | angle |
---|
| 889 | ); |
---|
| 890 | |
---|
| 891 | /** |
---|
| 892 | * Draw the gray indicator line |
---|
| 893 | */ |
---|
| 894 | this.context.beginPath(); |
---|
| 895 | this.context.strokeStyle = '#bbb'; |
---|
| 896 | this.context.moveTo(this.gutterLeft + (graphArea * ((labels[i][1] - xMin)/ (this.Get('chart.xmax') - xMin))), RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 897 | this.context.lineTo(this.gutterLeft + (graphArea * ((labels[i][1] - xMin)/ (this.Get('chart.xmax') - xMin))), RGraph.GetHeight(this) - this.gutterBottom + 20); |
---|
| 898 | this.context.stroke(); |
---|
| 899 | |
---|
| 900 | } else { |
---|
| 901 | RGraph.Text(context, font, this.Get('chart.text.size'), xPos + (this.xTickGap / 2), yPos, String(labels[i]), valign, halign, null, angle); |
---|
| 902 | } |
---|
| 903 | |
---|
| 904 | // Do this for the next time around |
---|
| 905 | xPos += xInterval; |
---|
| 906 | } |
---|
| 907 | |
---|
| 908 | /** |
---|
| 909 | * Draw the final indicator line |
---|
| 910 | */ |
---|
| 911 | if (typeof(labels[0]) == 'object') { |
---|
| 912 | this.context.beginPath(); |
---|
| 913 | this.context.strokeStyle = '#bbb'; |
---|
| 914 | this.context.moveTo(this.gutterLeft + graphArea, RGraph.GetHeight(this) - this.gutterBottom); |
---|
| 915 | this.context.lineTo(this.gutterLeft + graphArea, RGraph.GetHeight(this) - this.gutterBottom + 20); |
---|
| 916 | this.context.stroke(); |
---|
| 917 | } |
---|
| 918 | } |
---|
| 919 | |
---|
| 920 | |
---|
| 921 | |
---|
| 922 | |
---|
| 923 | |
---|
| 924 | |
---|
| 925 | |
---|
| 926 | |
---|
| 927 | |
---|
| 928 | |
---|
| 929 | |
---|
| 930 | |
---|
| 931 | |
---|
| 932 | |
---|
| 933 | /** |
---|
| 934 | * Draws the actual scatter graph marks |
---|
| 935 | * |
---|
| 936 | * @param i integer The dataset index |
---|
| 937 | */ |
---|
| 938 | RGraph.Scatter.prototype.DrawMarks = function (i) |
---|
| 939 | { |
---|
| 940 | /** |
---|
| 941 | * Reset the coords array |
---|
| 942 | */ |
---|
| 943 | this.coords[i] = []; |
---|
| 944 | |
---|
| 945 | /** |
---|
| 946 | * Plot the values |
---|
| 947 | */ |
---|
| 948 | var xmax = this.Get('chart.xmax'); |
---|
| 949 | var default_color = this.Get('chart.defaultcolor'); |
---|
| 950 | |
---|
| 951 | for (var j=0; j<this.data[i].length; ++j) { |
---|
| 952 | /** |
---|
| 953 | * This is here because tooltips are optional |
---|
| 954 | */ |
---|
| 955 | var data_point = this.data[i]; |
---|
| 956 | |
---|
| 957 | var xCoord = data_point[j][0]; |
---|
| 958 | var yCoord = data_point[j][1]; |
---|
| 959 | var color = data_point[j][2] ? data_point[j][2] : default_color; |
---|
| 960 | var tooltip = (data_point[j] && data_point[j][3]) ? data_point[j][3] : null; |
---|
| 961 | |
---|
| 962 | |
---|
| 963 | this.DrawMark( |
---|
| 964 | i, |
---|
| 965 | xCoord, |
---|
| 966 | yCoord, |
---|
| 967 | xmax, |
---|
| 968 | this.scale[4], |
---|
| 969 | color, |
---|
| 970 | tooltip, |
---|
| 971 | this.coords[i], |
---|
| 972 | data_point |
---|
| 973 | ); |
---|
| 974 | } |
---|
| 975 | } |
---|
| 976 | |
---|
| 977 | |
---|
| 978 | /** |
---|
| 979 | * Draws a single scatter mark |
---|
| 980 | */ |
---|
| 981 | RGraph.Scatter.prototype.DrawMark = function (index, x, y, xMax, yMax, color, tooltip, coords, data) |
---|
| 982 | { |
---|
| 983 | /** |
---|
| 984 | * Inverted Y scale handling |
---|
| 985 | */ |
---|
| 986 | if (this.Get('chart.ylabels.invert')) { |
---|
| 987 | if (typeof(y) == 'number') { |
---|
| 988 | y = yMax - y; |
---|
| 989 | } |
---|
| 990 | } |
---|
| 991 | |
---|
| 992 | var tickmarks = this.Get('chart.tickmarks'); |
---|
| 993 | var tickSize = this.Get('chart.ticksize'); |
---|
| 994 | var xMin = this.Get('chart.xmin'); |
---|
| 995 | var x = ((x - xMin) / (xMax - xMin)) * (RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight); |
---|
| 996 | var originalX = x; |
---|
| 997 | var originalY = y; |
---|
| 998 | |
---|
| 999 | |
---|
| 1000 | /** |
---|
| 1001 | * This allows chart.tickmarks to be an array |
---|
| 1002 | */ |
---|
| 1003 | |
---|
| 1004 | if (tickmarks && typeof(tickmarks) == 'object') { |
---|
| 1005 | tickmarks = tickmarks[index]; |
---|
| 1006 | } |
---|
| 1007 | |
---|
| 1008 | |
---|
| 1009 | /** |
---|
| 1010 | * This allows chart.ticksize to be an array |
---|
| 1011 | */ |
---|
| 1012 | if (typeof(tickSize) == 'object') { |
---|
| 1013 | var tickSize = tickSize[index]; |
---|
| 1014 | var halfTickSize = tickSize / 2; |
---|
| 1015 | } else { |
---|
| 1016 | var halfTickSize = tickSize / 2; |
---|
| 1017 | } |
---|
| 1018 | |
---|
| 1019 | |
---|
| 1020 | /** |
---|
| 1021 | * This bit is for boxplots only |
---|
| 1022 | */ |
---|
| 1023 | if ( typeof(y) == 'object' |
---|
| 1024 | && typeof(y[0]) == 'number' |
---|
| 1025 | && typeof(y[1]) == 'number' |
---|
| 1026 | && typeof(y[2]) == 'number' |
---|
| 1027 | && typeof(y[3]) == 'number' |
---|
| 1028 | && typeof(y[4]) == 'number' |
---|
| 1029 | ) { |
---|
| 1030 | |
---|
| 1031 | var yMin = this.Get('chart.ymin') ? this.Get('chart.ymin') : 0; |
---|
| 1032 | this.Set('chart.boxplot', true); |
---|
| 1033 | this.graphheight = RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom; |
---|
| 1034 | |
---|
| 1035 | if (this.Get('chart.xaxispos') == 'center') { |
---|
| 1036 | this.graphheight /= 2; |
---|
| 1037 | } |
---|
| 1038 | |
---|
| 1039 | var y0 = (this.graphheight) - ((y[4] - yMin) / (yMax - yMin)) * (this.graphheight); |
---|
| 1040 | var y1 = (this.graphheight) - ((y[3] - yMin) / (yMax - yMin)) * (this.graphheight); |
---|
| 1041 | var y2 = (this.graphheight) - ((y[2] - yMin) / (yMax - yMin)) * (this.graphheight); |
---|
| 1042 | var y3 = (this.graphheight) - ((y[1] - yMin) / (yMax - yMin)) * (this.graphheight); |
---|
| 1043 | var y4 = (this.graphheight) - ((y[0] - yMin) / (yMax - yMin)) * (this.graphheight); |
---|
| 1044 | |
---|
| 1045 | /** |
---|
| 1046 | * Inverted labels |
---|
| 1047 | */ |
---|
| 1048 | if (this.Get('chart.ylabels.invert')) { |
---|
| 1049 | y0 = this.graphheight - y0; |
---|
| 1050 | y1 = this.graphheight - y1; |
---|
| 1051 | y2 = this.graphheight - y2; |
---|
| 1052 | y3 = this.graphheight - y3; |
---|
| 1053 | y4 = this.graphheight - y4; |
---|
| 1054 | } |
---|
| 1055 | |
---|
| 1056 | var col1 = y[5]; |
---|
| 1057 | var col2 = y[6]; |
---|
| 1058 | |
---|
| 1059 | // Override the boxWidth |
---|
| 1060 | if (typeof(y[7]) == 'number') { |
---|
| 1061 | var boxWidth = y[7]; |
---|
| 1062 | } |
---|
| 1063 | |
---|
| 1064 | var y = this.graphheight - y2; |
---|
| 1065 | |
---|
| 1066 | } else { |
---|
| 1067 | var yMin = this.Get('chart.ymin') ? this.Get('chart.ymin') : 0; |
---|
| 1068 | var y = (( (y - yMin) / (yMax - yMin)) * (RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom)); |
---|
| 1069 | } |
---|
| 1070 | |
---|
| 1071 | /** |
---|
| 1072 | * Account for the X axis being at the centre |
---|
| 1073 | */ |
---|
| 1074 | if (this.Get('chart.xaxispos') == 'center') { |
---|
| 1075 | y /= 2; |
---|
| 1076 | y += this.halfGraphHeight; |
---|
| 1077 | } |
---|
| 1078 | |
---|
| 1079 | // This is so that points are on the graph, and not the gutter |
---|
| 1080 | x += this.gutterLeft; |
---|
| 1081 | y = RGraph.GetHeight(this) - this.gutterBottom - y; |
---|
| 1082 | |
---|
| 1083 | this.context.beginPath(); |
---|
| 1084 | |
---|
| 1085 | // Color |
---|
| 1086 | this.context.strokeStyle = color; |
---|
| 1087 | |
---|
| 1088 | /** |
---|
| 1089 | * Boxplots |
---|
| 1090 | */ |
---|
| 1091 | if ( this.Get('chart.boxplot') |
---|
| 1092 | && typeof(y0) == 'number' |
---|
| 1093 | && typeof(y1) == 'number' |
---|
| 1094 | && typeof(y2) == 'number' |
---|
| 1095 | && typeof(y3) == 'number' |
---|
| 1096 | && typeof(y4) == 'number' |
---|
| 1097 | ) { |
---|
| 1098 | |
---|
| 1099 | var boxWidth = boxWidth ? boxWidth : this.Get('chart.boxplot.width'); |
---|
| 1100 | var halfBoxWidth = boxWidth / 2; |
---|
| 1101 | |
---|
| 1102 | this.context.beginPath(); |
---|
| 1103 | |
---|
| 1104 | // Draw the upper coloured box if a value is specified |
---|
| 1105 | if (col1) { |
---|
| 1106 | this.context.fillStyle = col1; |
---|
| 1107 | this.context.fillRect(x - halfBoxWidth, y1 + this.gutterTop, boxWidth, y2 - y1); |
---|
| 1108 | } |
---|
| 1109 | |
---|
| 1110 | // Draw the lower coloured box if a value is specified |
---|
| 1111 | if (col2) { |
---|
| 1112 | this.context.fillStyle = col2; |
---|
| 1113 | this.context.fillRect(x - halfBoxWidth, y2 + this.gutterTop, boxWidth, y3 - y2); |
---|
| 1114 | } |
---|
| 1115 | |
---|
| 1116 | this.context.strokeRect(x - halfBoxWidth, y1 + this.gutterTop, boxWidth, y3 - y1); |
---|
| 1117 | this.context.stroke(); |
---|
| 1118 | |
---|
| 1119 | // Now draw the whiskers |
---|
| 1120 | this.context.beginPath(); |
---|
| 1121 | this.context.moveTo(x - halfBoxWidth, y0 + this.gutterTop); |
---|
| 1122 | this.context.lineTo(x + halfBoxWidth, y0 + this.gutterTop); |
---|
| 1123 | |
---|
| 1124 | this.context.moveTo(x, y0 + this.gutterTop); |
---|
| 1125 | this.context.lineTo(x, y1 + this.gutterTop); |
---|
| 1126 | |
---|
| 1127 | this.context.moveTo(x - halfBoxWidth, y4 + this.gutterTop); |
---|
| 1128 | this.context.lineTo(x + halfBoxWidth, y4 + this.gutterTop); |
---|
| 1129 | |
---|
| 1130 | this.context.moveTo(x, y4 + this.gutterTop); |
---|
| 1131 | this.context.lineTo(x, y3 + this.gutterTop); |
---|
| 1132 | |
---|
| 1133 | this.context.stroke(); |
---|
| 1134 | } |
---|
| 1135 | |
---|
| 1136 | |
---|
| 1137 | /** |
---|
| 1138 | * Draw the tickmark, but not for boxplots |
---|
| 1139 | */ |
---|
| 1140 | if (!y0 && !y1 && !y2 && !y3 && !y4) { |
---|
| 1141 | |
---|
| 1142 | this.graphheight = RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom; |
---|
| 1143 | |
---|
| 1144 | |
---|
| 1145 | |
---|
| 1146 | if (tickmarks == 'circle') { |
---|
| 1147 | this.context.arc(x, y, halfTickSize, 0, 6.28, 0); |
---|
| 1148 | this.context.fillStyle = color; |
---|
| 1149 | this.context.fill(); |
---|
| 1150 | |
---|
| 1151 | } else if (tickmarks == 'plus') { |
---|
| 1152 | |
---|
| 1153 | this.context.moveTo(x, y - halfTickSize); |
---|
| 1154 | this.context.lineTo(x, y + halfTickSize); |
---|
| 1155 | this.context.moveTo(x - halfTickSize, y); |
---|
| 1156 | this.context.lineTo(x + halfTickSize, y); |
---|
| 1157 | this.context.stroke(); |
---|
| 1158 | |
---|
| 1159 | } else if (tickmarks == 'square') { |
---|
| 1160 | this.context.strokeStyle = color; |
---|
| 1161 | this.context.fillStyle = color; |
---|
| 1162 | this.context.fillRect( |
---|
| 1163 | x - halfTickSize, |
---|
| 1164 | y - halfTickSize, |
---|
| 1165 | tickSize, |
---|
| 1166 | tickSize |
---|
| 1167 | ); |
---|
| 1168 | //this.context.fill(); |
---|
| 1169 | |
---|
| 1170 | } else if (tickmarks == 'cross') { |
---|
| 1171 | |
---|
| 1172 | this.context.moveTo(x - halfTickSize, y - halfTickSize); |
---|
| 1173 | this.context.lineTo(x + halfTickSize, y + halfTickSize); |
---|
| 1174 | this.context.moveTo(x + halfTickSize, y - halfTickSize); |
---|
| 1175 | this.context.lineTo(x - halfTickSize, y + halfTickSize); |
---|
| 1176 | |
---|
| 1177 | this.context.stroke(); |
---|
| 1178 | |
---|
| 1179 | /** |
---|
| 1180 | * Diamond shape tickmarks |
---|
| 1181 | */ |
---|
| 1182 | } else if (tickmarks == 'diamond') { |
---|
| 1183 | this.context.fillStyle = this.context.strokeStyle; |
---|
| 1184 | |
---|
| 1185 | this.context.moveTo(x, y - halfTickSize); |
---|
| 1186 | this.context.lineTo(x + halfTickSize, y); |
---|
| 1187 | this.context.lineTo(x, y + halfTickSize); |
---|
| 1188 | this.context.lineTo(x - halfTickSize, y); |
---|
| 1189 | this.context.lineTo(x, y - halfTickSize); |
---|
| 1190 | |
---|
| 1191 | this.context.fill(); |
---|
| 1192 | this.context.stroke(); |
---|
| 1193 | |
---|
| 1194 | /** |
---|
| 1195 | * Custom tickmark style |
---|
| 1196 | */ |
---|
| 1197 | } else if (typeof(tickmarks) == 'function') { |
---|
| 1198 | |
---|
| 1199 | var graphWidth = RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight |
---|
| 1200 | var xVal = ((x - this.gutterLeft) / graphWidth) * xMax; |
---|
| 1201 | var yVal = ((this.graphheight - (y - this.gutterTop)) / this.graphheight) * yMax; |
---|
| 1202 | |
---|
| 1203 | tickmarks(this, data, x, y, xVal, yVal, xMax, yMax, color) |
---|
| 1204 | |
---|
| 1205 | /** |
---|
| 1206 | * No tickmarks |
---|
| 1207 | */ |
---|
| 1208 | } else if (tickmarks == null) { |
---|
| 1209 | |
---|
| 1210 | /** |
---|
| 1211 | * Unknown tickmark type |
---|
| 1212 | */ |
---|
| 1213 | } else { |
---|
| 1214 | alert('[SCATTER] (' + this.id + ') Unknown tickmark style: ' + tickmarks ); |
---|
| 1215 | } |
---|
| 1216 | } |
---|
| 1217 | |
---|
| 1218 | /** |
---|
| 1219 | * Add the tickmark to the coords array |
---|
| 1220 | */ |
---|
| 1221 | coords.push([x, y, tooltip]); |
---|
| 1222 | } |
---|
| 1223 | |
---|
| 1224 | |
---|
| 1225 | /** |
---|
| 1226 | * Draws an optional line connecting the tick marks. |
---|
| 1227 | * |
---|
| 1228 | * @param i The index of the dataset to use |
---|
| 1229 | */ |
---|
| 1230 | RGraph.Scatter.prototype.DrawLine = function (i) |
---|
| 1231 | { |
---|
| 1232 | if (this.Get('chart.line') && this.coords[i].length >= 2) { |
---|
| 1233 | |
---|
| 1234 | this.context.lineCap = 'round'; |
---|
| 1235 | this.context.lineJoin = 'round'; |
---|
| 1236 | this.context.lineWidth = this.GetLineWidth(i);// i is the index of the set of coordinates |
---|
| 1237 | this.context.strokeStyle = this.Get('chart.line.colors')[i]; |
---|
| 1238 | this.context.beginPath(); |
---|
| 1239 | |
---|
| 1240 | var len = this.coords[i].length; |
---|
| 1241 | |
---|
| 1242 | for (var j=0; j<this.coords[i].length; ++j) { |
---|
| 1243 | |
---|
| 1244 | var xPos = this.coords[i][j][0]; |
---|
| 1245 | var yPos = this.coords[i][j][1]; |
---|
| 1246 | |
---|
| 1247 | if (j == 0) { |
---|
| 1248 | this.context.moveTo(xPos, yPos); |
---|
| 1249 | } else { |
---|
| 1250 | |
---|
| 1251 | // Stepped? |
---|
| 1252 | var stepped = this.Get('chart.line.stepped'); |
---|
| 1253 | |
---|
| 1254 | if ( (typeof(stepped) == 'boolean' && stepped) |
---|
| 1255 | || (typeof(stepped) == 'object' && stepped[i]) |
---|
| 1256 | ) { |
---|
| 1257 | this.context.lineTo(this.coords[i][j][0], this.coords[i][j - 1][1]); |
---|
| 1258 | } |
---|
| 1259 | |
---|
| 1260 | this.context.lineTo(xPos, yPos); |
---|
| 1261 | } |
---|
| 1262 | } |
---|
| 1263 | |
---|
| 1264 | this.context.stroke(); |
---|
| 1265 | } |
---|
| 1266 | |
---|
| 1267 | /** |
---|
| 1268 | * Set the linewidth back to 1 |
---|
| 1269 | */ |
---|
| 1270 | this.context.lineWidth = 1; |
---|
| 1271 | } |
---|
| 1272 | |
---|
| 1273 | |
---|
| 1274 | /** |
---|
| 1275 | * Returns the linewidth |
---|
| 1276 | * |
---|
| 1277 | * @param number i The index of the "line" (/set of coordinates) |
---|
| 1278 | */ |
---|
| 1279 | RGraph.Scatter.prototype.GetLineWidth = function (i) |
---|
| 1280 | { |
---|
| 1281 | var linewidth = this.Get('chart.line.linewidth'); |
---|
| 1282 | |
---|
| 1283 | if (typeof(linewidth) == 'number') { |
---|
| 1284 | return linewidth; |
---|
| 1285 | |
---|
| 1286 | } else if (typeof(linewidth) == 'object') { |
---|
| 1287 | if (linewidth[i]) { |
---|
| 1288 | return linewidth[i]; |
---|
| 1289 | } else { |
---|
| 1290 | return linewidth[0]; |
---|
| 1291 | } |
---|
| 1292 | |
---|
| 1293 | alert('[SCATTER] Error! chart.linewidth should be a single number or an array of one or more numbers'); |
---|
| 1294 | } |
---|
| 1295 | } |
---|
| 1296 | |
---|
| 1297 | |
---|
| 1298 | /** |
---|
| 1299 | * Draws vertical bars. Line chart doesn't use a horizontal scale, hence this function |
---|
| 1300 | * is not common |
---|
| 1301 | */ |
---|
| 1302 | RGraph.Scatter.prototype.DrawVBars = function () |
---|
| 1303 | { |
---|
| 1304 | var canvas = this.canvas; |
---|
| 1305 | var context = this.context; |
---|
| 1306 | var vbars = this.Get('chart.background.vbars'); |
---|
| 1307 | var graphWidth = RGraph.GetWidth(this) - this.gutterLeft - this.gutterRight; |
---|
| 1308 | |
---|
| 1309 | if (vbars) { |
---|
| 1310 | |
---|
| 1311 | var xmax = this.Get('chart.xmax'); |
---|
| 1312 | |
---|
| 1313 | for (var i=0; i<vbars.length; ++i) { |
---|
| 1314 | var startX = ((vbars[i][0] / xmax) * graphWidth) + this.gutterLeft; |
---|
| 1315 | var width = (vbars[i][1] / xmax) * graphWidth; |
---|
| 1316 | |
---|
| 1317 | context.beginPath(); |
---|
| 1318 | context.fillStyle = vbars[i][2]; |
---|
| 1319 | context.fillRect(startX, this.gutterTop, width, (RGraph.GetHeight(this) - this.gutterTop - this.gutterBottom)); |
---|
| 1320 | context.fill(); |
---|
| 1321 | } |
---|
| 1322 | } |
---|
| 1323 | } |
---|
| 1324 | |
---|
| 1325 | |
---|
| 1326 | |
---|
| 1327 | |
---|
| 1328 | |
---|
| 1329 | /** |
---|
| 1330 | * Draws in-graph labels. |
---|
| 1331 | * |
---|
| 1332 | * @param object obj The graph object |
---|
| 1333 | */ |
---|
| 1334 | RGraph.Scatter.prototype.DrawInGraphLabels = function (obj) |
---|
| 1335 | { |
---|
| 1336 | var canvas = obj.canvas; |
---|
| 1337 | var context = obj.context; |
---|
| 1338 | var labels = obj.Get('chart.labels.ingraph'); |
---|
| 1339 | var labels_processed = []; |
---|
| 1340 | |
---|
| 1341 | // Defaults |
---|
| 1342 | var fgcolor = 'black'; |
---|
| 1343 | var bgcolor = 'white'; |
---|
| 1344 | var direction = 1; |
---|
| 1345 | |
---|
| 1346 | if (!labels) { |
---|
| 1347 | return; |
---|
| 1348 | } |
---|
| 1349 | |
---|
| 1350 | /** |
---|
| 1351 | * Preprocess the labels array. Numbers are expanded |
---|
| 1352 | */ |
---|
| 1353 | for (var i=0; i<labels.length; ++i) { |
---|
| 1354 | if (typeof(labels[i]) == 'number') { |
---|
| 1355 | for (var j=0; j<labels[i]; ++j) { |
---|
| 1356 | labels_processed.push(null); |
---|
| 1357 | } |
---|
| 1358 | } else if (typeof(labels[i]) == 'string' || typeof(labels[i]) == 'object') { |
---|
| 1359 | labels_processed.push(labels[i]); |
---|
| 1360 | |
---|
| 1361 | } else { |
---|
| 1362 | labels_processed.push(''); |
---|
| 1363 | } |
---|
| 1364 | } |
---|
| 1365 | |
---|
| 1366 | /** |
---|
| 1367 | * Turn off any shadow |
---|
| 1368 | */ |
---|
| 1369 | RGraph.NoShadow(obj); |
---|
| 1370 | |
---|
| 1371 | if (labels_processed && labels_processed.length > 0) { |
---|
| 1372 | |
---|
| 1373 | var i=0; |
---|
| 1374 | |
---|
| 1375 | for (var set=0; set<obj.coords.length; ++set) { |
---|
| 1376 | for (var point = 0; point<obj.coords[set].length; ++point) { |
---|
| 1377 | if (labels_processed[i]) { |
---|
| 1378 | var x = obj.coords[set][point][0]; |
---|
| 1379 | var y = obj.coords[set][point][1]; |
---|
| 1380 | var length = typeof(labels_processed[i][4]) == 'number' ? labels_processed[i][4] : 25; |
---|
| 1381 | |
---|
| 1382 | var text_x = x; |
---|
| 1383 | var text_y = y - 5 - length; |
---|
| 1384 | |
---|
| 1385 | context.moveTo(x, y - 5); |
---|
| 1386 | context.lineTo(x, y - 5 - length); |
---|
| 1387 | |
---|
| 1388 | context.stroke(); |
---|
| 1389 | context.beginPath(); |
---|
| 1390 | |
---|
| 1391 | // This draws the arrow |
---|
| 1392 | context.moveTo(x, y - 5); |
---|
| 1393 | context.lineTo(x - 3, y - 10); |
---|
| 1394 | context.lineTo(x + 3, y - 10); |
---|
| 1395 | context.closePath(); |
---|
| 1396 | |
---|
| 1397 | |
---|
| 1398 | context.beginPath(); |
---|
| 1399 | |
---|
| 1400 | // Fore ground color |
---|
| 1401 | context.fillStyle = (typeof(labels_processed[i]) == 'object' && typeof(labels_processed[i][1]) == 'string') ? labels_processed[i][1] : 'black'; |
---|
| 1402 | |
---|
| 1403 | RGraph.Text(context, |
---|
| 1404 | obj.Get('chart.text.font'), |
---|
| 1405 | obj.Get('chart.text.size'), |
---|
| 1406 | text_x, |
---|
| 1407 | text_y, |
---|
| 1408 | (typeof(labels_processed[i]) == 'object' && typeof(labels_processed[i][0]) == 'string') ? labels_processed[i][0] : labels_processed[i], |
---|
| 1409 | 'bottom', |
---|
| 1410 | 'center', |
---|
| 1411 | true, |
---|
| 1412 | null, |
---|
| 1413 | (typeof(labels_processed[i]) == 'object' && typeof(labels_processed[i][2]) == 'string') ? labels_processed[i][2] : 'white'); |
---|
| 1414 | context.fill(); |
---|
| 1415 | } |
---|
| 1416 | |
---|
| 1417 | i++; |
---|
| 1418 | } |
---|
| 1419 | } |
---|
| 1420 | } |
---|
| 1421 | } |
---|
| 1422 | |
---|
| 1423 | |
---|
| 1424 | /** |
---|
| 1425 | * This function makes it much easier to get the (if any) point that is currently being hovered over. |
---|
| 1426 | * |
---|
| 1427 | * @param object e The event object |
---|
| 1428 | */ |
---|
| 1429 | RGraph.Scatter.prototype.getPoint = function (e) |
---|
| 1430 | { |
---|
| 1431 | var canvas = e.target; |
---|
| 1432 | var obj = canvas.__object__; |
---|
| 1433 | var context = obj.context; |
---|
| 1434 | var context = obj.context; |
---|
| 1435 | var mouseXY = RGraph.getMouseXY(e); |
---|
| 1436 | var mouseX = mouseXY[0]; |
---|
| 1437 | var mouseY = mouseXY[1]; |
---|
| 1438 | var overHotspot = false; |
---|
| 1439 | var offset = obj.Get('chart.tooltips.hotspot'); // This is how far the hotspot extends |
---|
| 1440 | |
---|
| 1441 | for (var set=0; set<obj.coords.length; ++set) { |
---|
| 1442 | for (var i=0; i<obj.coords[set].length; ++i) { |
---|
| 1443 | |
---|
| 1444 | var xCoord = obj.coords[set][i][0]; |
---|
| 1445 | var yCoord = obj.coords[set][i][1]; |
---|
| 1446 | |
---|
| 1447 | if (mouseX <= (xCoord + offset) && |
---|
| 1448 | mouseX >= (xCoord - offset) && |
---|
| 1449 | mouseY <= (yCoord + offset) && |
---|
| 1450 | mouseY >= (yCoord - offset)) { |
---|
| 1451 | |
---|
| 1452 | return [xCoord, yCoord, set, i, obj.data[set][i][3]]; |
---|
| 1453 | } |
---|
| 1454 | } |
---|
| 1455 | } |
---|
| 1456 | } |
---|
| 1457 | |
---|
| 1458 | |
---|
| 1459 | /** |
---|
| 1460 | * Draws the above line labels |
---|
| 1461 | */ |
---|
| 1462 | RGraph.Scatter.prototype.DrawAboveLabels = function () |
---|
| 1463 | { |
---|
| 1464 | var context = this.context; |
---|
| 1465 | var size = this.Get('chart.labels.above.size'); |
---|
| 1466 | var font = this.Get('chart.text.font'); |
---|
| 1467 | var units_pre = this.Get('chart.units.pre'); |
---|
| 1468 | var units_post = this.Get('chart.units.post'); |
---|
| 1469 | |
---|
| 1470 | |
---|
| 1471 | for (var set=0; set<this.coords.length; ++set) { |
---|
| 1472 | for (var point=0; point<this.coords[set].length; ++point) { |
---|
| 1473 | |
---|
| 1474 | var x_val = this.data[set][point][0]; |
---|
| 1475 | var y_val = this.data[set][point][1]; |
---|
| 1476 | |
---|
| 1477 | |
---|
| 1478 | var x_pos = this.coords[set][point][0]; |
---|
| 1479 | var y_pos = this.coords[set][point][1]; |
---|
| 1480 | |
---|
| 1481 | RGraph.Text(context, |
---|
| 1482 | font, |
---|
| 1483 | size, |
---|
| 1484 | x_pos, |
---|
| 1485 | y_pos - 5 - size, |
---|
| 1486 | x_val.toFixed(this.Get('chart.labels.above.decimals')) + ', ' + y_val.toFixed(this.Get('chart.labels.above.decimals')), |
---|
| 1487 | 'center', |
---|
| 1488 | 'center', |
---|
| 1489 | true, |
---|
| 1490 | null, |
---|
| 1491 | 'rgba(255, 255, 255, 0.7)'); |
---|
| 1492 | } |
---|
| 1493 | } |
---|
| 1494 | } |
---|