| 1 | <!DOCTYPE html> |
| 2 | <html> |
| 3 | <head> |
| 4 | <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7; IE=EmulateIE9"> |
| 5 | <title>noise</title> |
| 6 | <!--[if IE]> |
| 7 | <script type="text/javascript" src="../excanvas.js"></script> |
| 8 | <![endif]--> |
| 9 | <!-- |
| 10 | For production (minified) code, use: |
| 11 | <script type="text/javascript" src="dygraph-combined.js"></script> |
| 12 | --> |
| 13 | <script type="text/javascript" src="../dygraph-dev.js"></script> |
| 14 | |
| 15 | </head> |
| 16 | <body> |
| 17 | <div id="div_g"></div> |
| 18 | <b>Zoom:</b> |
| 19 | <a href="#" onclick="zoom(3600)">hour</a> |
| 20 | <a href="#" onclick="zoom(86400)">day</a> |
| 21 | <a href="#" onclick="zoom(604800)">week</a> |
| 22 | <a href="#" onclick="zoom(30 * 86400)">month</a> |
| 23 | <a href="#" onclick="reset()">full</a> |
| 24 | <b>Pan:</b> |
| 25 | <a href="#" onclick="pan(-1)">left</a> |
| 26 | <a href="#" onclick="pan(+1)">right</a> |
| 27 | |
| 28 | <script type="text/javascript"> |
| 29 | var r = [ ]; |
| 30 | var base_time = Date.parse("2008/07/01"); |
| 31 | var num = 24 * 0.25 * 365; |
| 32 | for (var i = 0; i < num; i++) { |
| 33 | r.push([ new Date(base_time + i * 3600 * 1000), |
| 34 | i + 50 * (i % 60), // line |
| 35 | i * (num - i) * 4.0 / num // parabola |
| 36 | ]); |
| 37 | } |
| 38 | var orig_range = [ r[0][0].valueOf(), r[r.length - 1][0].valueOf() ]; |
| 39 | g = new Dygraph( |
| 40 | document.getElementById("div_g"), |
| 41 | r, { |
| 42 | rollPeriod: 7, |
| 43 | animatedZooms: true, |
| 44 | // errorBars: true, |
| 45 | width: 600, |
| 46 | height: 300, |
| 47 | labels: ["Date", "a", "b"] |
| 48 | } |
| 49 | ); |
| 50 | |
| 51 | var desired_range = null; |
| 52 | function approach_range() { |
| 53 | if (!desired_range) return; |
| 54 | // go halfway there |
| 55 | var range = g.xAxisRange(); |
| 56 | if (Math.abs(desired_range[0] - range[0]) < 60 && |
| 57 | Math.abs(desired_range[1] - range[1]) < 60) { |
| 58 | g.updateOptions({dateWindow: desired_range}); |
| 59 | // (do not set another timeout.) |
| 60 | } else { |
| 61 | var new_range; |
| 62 | new_range = [0.5 * (desired_range[0] + range[0]), |
| 63 | 0.5 * (desired_range[1] + range[1])]; |
| 64 | g.updateOptions({dateWindow: new_range}); |
| 65 | animate(); |
| 66 | } |
| 67 | } |
| 68 | function animate() { |
| 69 | setTimeout(approach_range, 50); |
| 70 | } |
| 71 | |
| 72 | function zoom(res) { |
| 73 | var w = g.xAxisRange(); |
| 74 | desired_range = [ w[0], w[0] + res * 1000 ]; |
| 75 | animate(); |
| 76 | } |
| 77 | |
| 78 | function reset() { |
| 79 | desired_range = orig_range; |
| 80 | animate(); |
| 81 | } |
| 82 | |
| 83 | function pan(dir) { |
| 84 | var w = g.xAxisRange(); |
| 85 | var scale = w[1] - w[0]; |
| 86 | var amount = scale * 0.25 * dir; |
| 87 | desired_range = [ w[0] + amount, w[1] + amount ]; |
| 88 | animate(); |
| 89 | } |
| 90 | </script> |
| 91 | </body> |
| 92 | </html> |