projects / dygraphs.git / blame
| Commit | Line | Data |
|---|---|---|
| 98bb0633 DV |
1 | <!DOCTYPE html> |
| 2 | <html> | |
| 3 | <head> | |
| 98bb0633 | 4 | <title>Plotters demo</title> |
| 98bb0633 DV |
5 | <script type="text/javascript" src="../dygraph-dev.js"></script> |
| 6 | <script type="text/javascript" src="../extras/smooth-plotter.js"></script> | |
| 7 | ||
| 8 | <style type="text/css"> | |
| 9 | body { | |
| 10 | max-width: 700px; | |
| 11 | } | |
| 12 | div.chart { | |
| 13 | width: 640px; | |
| 14 | height: 320px; | |
| 15 | } | |
| 16 | input[type="range"] { | |
| 17 | width: 400px; | |
| 18 | } | |
| 19 | .smoother { | |
| 20 | margin-left: 50px; | |
| 21 | } | |
| 22 | </style> | |
| 23 | </head> | |
| 24 | <body> | |
| 25 | <h2>Smooth Lines</h2> | |
| 26 | <p>This plotter draws smooth lines between points using bezier curves.</p> | |
| 27 | <p class="smoother">Smoothing: <input type="range" id="smoothing-amount" min=0 max=0.7 step=0.01 value=0.33> <span id="smoothing-param">0.33</span></p> | |
| 28 | <div id="smooth-line" class="chart"></div> | |
| 29 | ||
| 30 | <p>View source to see how this works. You'll have to source <code>extras/smooth-plotter.js</code> in addition to dygraphs to get this feature. See the <a href="https://github.com/danvk/dygraphs/pull/469">pull request</a> that introduced this plotter to learn more about how it smooths your curves.</p> | |
| 31 | ||
| 32 | <script type="text/javascript"> | |
| 33 | // Smooth line plotter | |
| 34 | var functionData = []; | |
| 35 | var vs = [10, 20, 40, 0, 30, 15, 25, 60, 35, 45]; | |
| 36 | for (var i = 0; i < 10; i++) { | |
| 37 | var v = vs[i]; | |
| 38 | functionData.push([i, v, v]); | |
| 39 | } | |
| 40 | ||
| 41 | var g6; | |
| 42 | function drawSmoothPlot() { | |
| 43 | g6 = new Dygraph(document.getElementById('smooth-line'), | |
| 44 | functionData, | |
| 45 | { | |
| 46 | labels: ['Year', 'Straight', 'Smoothed'], | |
| 47 | series: { | |
| 48 | Straight: { | |
| 49 | color: 'rgba(0,0,0,0.33)', | |
| 50 | strokeWidth: 2, | |
| 51 | drawPoints: true, | |
| 52 | pointSize: 3 | |
| 53 | }, | |
| 54 | Smoothed: { | |
| 55 | plotter: smoothPlotter, | |
| 56 | color: 'red', | |
| 57 | strokeWidth: 2 | |
| 58 | } | |
| 59 | }, | |
| 60 | legend: 'always', | |
| 61 | gridLineColor: '#ddd' | |
| 62 | }); | |
| 63 | } | |
| 64 | drawSmoothPlot(); | |
| 65 | ||
| 66 | var smoothRangeEl = document.getElementById('smoothing-amount'); | |
| 67 | smoothRangeEl.addEventListener('input', function() { | |
| 68 | var param = parseFloat(smoothRangeEl.value); | |
| 69 | smoothPlotter.smoothing = param; | |
| 70 | document.getElementById('smoothing-param').innerHTML = param; | |
| 71 | drawSmoothPlot(); | |
| 72 | }); | |
| 73 | </script> | |
| 74 | </body> | |
| 75 | </html> |