tests/logscale-zero.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 - verify that only positive values are shown.</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,-1\n"+
  25         "20101204,250\n"+
  26         "20101205,1000\n"+
  27         "20101206,30\n"+
  28         "20101207,80\n"+
  29         "20101208,100\n"+
  30         "20101209,500\n"+
  31         "";
  32       }
  33       var g = new Dygraph(document.getElementById("div_g"),
  34                       Data, { logscale : true});
  35
  36       function logScale() {
  37         g.updateOptions({ logscale : true });
  38       }
  39       function linearScale() {
  40         g.updateOptions({ logscale : false });
  41       }
  42     </script>
  43
  44   </body>
  45 </html>