tests/logscale.html

   1 <html>
   2   <head>
   3     <title>log scale</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
  13   <body>
  14     <h1>Log scale demo - work in progress</h1>
  15     <div id="div_g" style="width:600px; height:300px;"></div>
  16
  17     <input type="button" value="log scale" onclick="logScale()">
  18     <input type="button" value="linear scale" onclick="linearScale()">
  19     <script type="text/javascript">
  20       function Data() {
  21         return "Date,A\n" +
  22         "20101201,5\n"+
  23         "20101202,10\n"+
  24         "20101203,100\n"+
  25         "20101204,250\n"+
  26         "20101205,1000\n"+
  27         "20101206,30\n"+
  28         "20101207,80\n"+
  29         "20101208,100\n"+
  30         "20101209,250\n"+
  31         "";
  32       }
  33       var g = new Dygraph(document.getElementById("div_g"),
  34                       Data, { logscale : true });
  35       Dygraph.addEvent(g.canvas_, '_mousemove', function(e) {
  36         var y = Dygraph.pageY(e) - Dygraph.findPosY(g.canvas_);
  37         console.log(y, g.toDataYCoord(y));
  38       });
  39
  40       function logScale() {
  41         g.updateOptions({ logscale : true });
  42       }
  43       function linearScale() {
  44         g.updateOptions({ logscale : null });
  45       }
  46     </script>
  47
  48   </body>
  49 </html>