tests/dynamic-update.html

   1 <!DOCTYPE html>
   2 <html>
   3   <head>
   4     <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7; IE=EmulateIE9">
   5     <title>Live random data</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     <h3 style="width:800px; text-align: center;">Live random data</h3>
  18     <div id="div_g" style="width:800px; height:400px;"></div>
  19
  20     <script type="text/javascript">
  21       var data = [];
  22       var t = new Date();
  23       for (var i = 10; i >= 0; i--) {
  24         var x = new Date(t.getTime() - i * 1000);
  25         data.push([x, Math.random()]);
  26       }
  27
  28       var g = new Dygraph(document.getElementById("div_g"), data,
  29                           {
  30                             drawPoints: true,
  31                             showRoller: true,
  32                             valueRange: [0.0, 1.2],
  33                             labels: ['Time', 'Random']
  34                           });
  35       setInterval(function() {
  36         var x = new Date();  // current time
  37         var y = Math.random();
  38         data.push([x, y]);
  39         g.updateOptions( { 'file': data } );
  40       }, 1000);
  41
  42     </script>
  43
  44     <p>This test is modeled after a <a
  45       href="http://www.highcharts.com/demo/?example=dynamic-update&theme=default">highcharts
  46       test</a>. New points should appear once per second. Try zooming and
  47     panning over to the right edge to watch them show up.</p>
  48   </body>
  49 </html>