| 1 | <!DOCTYPE html> |
| 2 | <html> |
| 3 | <head> |
| 4 | <title>Custom Circles</title> |
| 5 | <!-- |
| 6 | For production (minified) code, use: |
| 7 | <script type="text/javascript" src="dygraph-combined.js"></script> |
| 8 | --> |
| 9 | <script type="text/javascript" src="../dygraph-dev.js"></script> |
| 10 | <script type="text/javascript" src="../extras/shapes.js"></script> |
| 11 | |
| 12 | </head> |
| 13 | <body> |
| 14 | <h2>Custom circles and hover circles</h2> |
| 15 | |
| 16 | <script type="text/javascript"> |
| 17 | // Simple version |
| 18 | var div = document.createElement('div'); |
| 19 | document.body.appendChild(div); |
| 20 | |
| 21 | var data = 'x,A,B\n' + |
| 22 | '1,1,2\n' + |
| 23 | '2,2,4\n' + |
| 24 | '3,3,6\n' + |
| 25 | '4,4,8\n' + |
| 26 | '5,5,7\n'; |
| 27 | var g = new Dygraph(div, data, { |
| 28 | drawPoints : true, |
| 29 | pointSize : 5, |
| 30 | highlightCircleSize: 8, |
| 31 | series : { |
| 32 | A : { |
| 33 | drawPointCallback : Dygraph.Circles.TRIANGLE, |
| 34 | drawHighlightPointCallback : Dygraph.Circles.TRIANGLE |
| 35 | }, |
| 36 | B : { |
| 37 | drawPointCallback : Dygraph.Circles.HEXAGON, |
| 38 | drawHighlightPointCallback : Dygraph.Circles.HEXAGON |
| 39 | } |
| 40 | } |
| 41 | }); |
| 42 | |
| 43 | |
| 44 | // Fancy demos |
| 45 | var smile = function(g, series, ctx, cx, cy, color, radius) { |
| 46 | mouthlessFace(g, series, ctx, cx, cy, color, radius); |
| 47 | |
| 48 | ctx.fillStyle = "#000000"; |
| 49 | ctx.beginPath(); |
| 50 | ctx.arc(cx, cy, radius - 2, .3, Math.PI - .3, false); |
| 51 | ctx.stroke(); |
| 52 | }; |
| 53 | |
| 54 | var frown = function(g, series, ctx, cx, cy, color, radius) { |
| 55 | mouthlessFace(g, series, ctx, cx, cy, color, radius); |
| 56 | |
| 57 | ctx.lineWidth = 1; |
| 58 | ctx.fillStyle = "#000000"; |
| 59 | ctx.beginPath(); |
| 60 | ctx.arc(cx, cy + radius, radius - 2, Math.PI + .3, -.3, false); |
| 61 | ctx.stroke(); |
| 62 | }; |
| 63 | |
| 64 | var mouthlessFace = function(g, series, ctx, cx, cy, color, radius) { |
| 65 | ctx.lineWidth = 1; |
| 66 | ctx.strokeStyle = "#000000"; |
| 67 | ctx.fillStyle = "#FFFF00"; |
| 68 | ctx.beginPath(); |
| 69 | ctx.arc(cx, cy, radius, Math.PI * 2, false); |
| 70 | ctx.closePath(); |
| 71 | ctx.stroke(); |
| 72 | ctx.fill(); |
| 73 | |
| 74 | ctx.fillStyle = "#000000"; |
| 75 | ctx.beginPath(); |
| 76 | ctx.arc(cx - (radius / 3) , cy - (radius / 4), 1, Math.PI * 2, false); |
| 77 | ctx.closePath(); |
| 78 | ctx.stroke(); |
| 79 | ctx.fill(); |
| 80 | |
| 81 | ctx.beginPath(); |
| 82 | ctx.arc(cx + (radius / 3) , cy - (radius / 4), 1, Math.PI * 2, false); |
| 83 | ctx.closePath(); |
| 84 | ctx.stroke(); |
| 85 | ctx.fill(); |
| 86 | }; |
| 87 | |
| 88 | var makeGraph = function(title, yFunc, extraOpts) { |
| 89 | var opts = { |
| 90 | drawPoints : true, |
| 91 | pointSize : 5 |
| 92 | }; |
| 93 | |
| 94 | var shapes = []; |
| 95 | var addShape = function(name, pointFn, highlightPointFn) { |
| 96 | shapes.push(name); |
| 97 | if (!opts['series']) opts['series'] = {}; |
| 98 | opts.series[name] = { |
| 99 | drawPointCallback: pointFn, |
| 100 | drawHighlightPointCallback: highlightPointFn |
| 101 | }; |
| 102 | }; |
| 103 | |
| 104 | for (var shape in Dygraph.Circles) { |
| 105 | if (!Dygraph.Circles.hasOwnProperty(shape)) continue; |
| 106 | var fn = Dygraph.Circles[shape]; |
| 107 | if (typeof fn !== 'function') continue; |
| 108 | addShape(shape.toLowerCase(), fn, fn); |
| 109 | }; |
| 110 | addShape('custom', frown, smile); |
| 111 | |
| 112 | for (var key in extraOpts) { |
| 113 | if (extraOpts.hasOwnProperty(key)) { |
| 114 | opts[key] = extraOpts[key]; |
| 115 | } |
| 116 | }; |
| 117 | |
| 118 | var header = document.createElement('h3'); |
| 119 | header.appendChild(document.createTextNode(title)); |
| 120 | document.body.appendChild(header); |
| 121 | |
| 122 | var div = document.createElement('div'); |
| 123 | document.body.appendChild(div); |
| 124 | |
| 125 | var g = new Dygraph( |
| 126 | div, |
| 127 | function() { |
| 128 | var r = "xval," + shapes.join(',') + "\n"; |
| 129 | var n = shapes.length; |
| 130 | for (var i=1; i<=20; i++) { |
| 131 | r += i; |
| 132 | for (var j = 0; j < n; j++) { |
| 133 | r += "," + yFunc(i, j, n); |
| 134 | } |
| 135 | r += "\n"; |
| 136 | } |
| 137 | return r; |
| 138 | }, opts); |
| 139 | }; |
| 140 | |
| 141 | makeGraph( |
| 142 | "Gallery of predefined shapes, adding a custom shape:", |
| 143 | function(x, c, n) { |
| 144 | return x / 3 + c * 10; |
| 145 | }, { |
| 146 | highlightCircleSize : 8 |
| 147 | }); |
| 148 | makeGraph( |
| 149 | "With interactive per-series highlighting:", |
| 150 | function(x, c, n) { |
| 151 | return Math.sin(x * c / n); |
| 152 | }, { |
| 153 | strokeBorderWidth: 2, |
| 154 | highlightSeriesOpts: { |
| 155 | pointSize: 6, |
| 156 | highlightCircleSize: 10, |
| 157 | strokeWidth: 2, |
| 158 | }}); |
| 159 | </script> |
| 160 | </body> |
| 161 | </html> |