tests/labelsKMB.html

   1 <html>
   2   <head>
   3     <title>labelsKMB</title>
   4     <!--[if IE]>
   5     <script type="text/javascript" src="excanvas.js"></script>
   6     <![endif]-->
   7     <script type="text/javascript" src="../strftime/strftime-min.js"></script>
   8     <script type="text/javascript" src="../rgbcolor/rgbcolor.js"></script>
   9     <script type="text/javascript" src="../dygraph-canvas.js"></script>
  10     <script type="text/javascript" src="../dygraph.js"></script>
  11   </head>
  12   <body>
  13     <p>labelsKMB:</p>
  14     <div id="labelsKMB" style="width:600px; height: 300px;"></div>
  15
  16     <p>labelsKMG2:</p>
  17     <div id="labelsKMG2" style="width:600px; height: 300px;"></div>
  18
  19     <p>labelsKMG2 with yValueFormatter:</p>
  20     <div id="labelsKMG2yValueFormatter" style="width:600px; height: 300px;"></div>
  21
  22     <p>The curves are exponentials. Zooming in should reveal each of the 'K',
  23     'M', 'B', etc. labels.</p>
  24
  25     <script type="text/javascript">
  26       function round(num, places) {
  27         var shift = Math.pow(10, places);
  28         return Math.round(num * shift)/shift;
  29       };
  30
  31       var data = [];
  32       for (var i = 0, n = 1; i < 43; i++, n *= 2) {
  33         data.push([i, n]);
  34       }
  35
  36       var suffixes = ['', 'k', 'M', 'G', 'T'];
  37       function formatValue(v) {
  38         if (v < 1000) return v;
  39
  40         var magnitude = Math.floor(String(Math.floor(v)).length / 3);
  41         if (magnitude > suffixes.length - 1)
  42           magnitude = suffixes.length - 1;
  43         return String(round(v / Math.pow(10, magnitude * 3), 2)) +
  44           suffixes[magnitude];
  45       }
  46
  47       new Dygraph(document.getElementById("labelsKMB"), data, { labelsKMB: true });
  48       new Dygraph(document.getElementById("labelsKMG2"), data, { labelsKMG2: true });
  49       var g = new Dygraph(document.getElementById("labelsKMG2yValueFormatter"), data,
  50                           { labelsKMG2: true, yValueFormatter: formatValue });
  51     </script>
  52   </body>
  53 </html>