tests/logscale.html

   1 <!DOCTYPE html>
   2 <html>
   3   <head>
   4     <title>log scale</title>
   5     <!--
   6     For production (minified) code, use:
   7     <script type="text/javascript" src="dygraph-combined.js"></script>
   8     -->
   9     <script type="text/javascript" src="../dygraph-dev.js"></script>
  10
  11   </head>
  12
  13   <body>
  14     <center>
  15       <input id='ylog' type="button" value="y log scale" onclick="setLogScale('y', true)">
  16       <input id='ylinear' type="button" value="y linear scale" onclick="setLogScale('y', false)">
  17       <input id='xlog' type="button" value="x log scale" onclick="setLogScale('x', true)">
  18       <input id='xlinear' type="button" value="x linear scale" onclick="setLogScale('x', false)">
  19       <div>Current scales: <span id="description"></span></div>
  20     </center>
  21
  22     <h2>X axis of dates</h2>
  23     <div id="div_g0" style="width:600px; height:300px;"></div>
  24     <div style="font-style: italic; margin-left: 40px;">(Note: when the x-axis is dates, logscale is ignored on that axis.)</div>
  25
  26     <h2>X axis of numbers</h2>
  27     <div id="div_g1" style="width:600px; height:300px;"></div>
  28
  29     <script type="text/javascript">
  30       Dygraph.Interaction.DEBUG = true;
  31
  32       function data0() {
  33         return "Date,A\n" +
  34         "20101201,5\n"+
  35         "20101202,10\n"+
  36         "20101203,-1\n"+
  37         "20101204,250\n"+
  38         "20101205,1000\n"+
  39         "20101206,30\n"+
  40         "20101207,80\n"+
  41         "20101208,100\n"+
  42         "20101209,500\n"+
  43         "";
  44       };
  45       function data1() {
  46         return "X,A\n" +
  47         "1,0.000001\n"+
  48         "2,10\n"+
  49         "3,100\n"+
  50         "4,250\n"+
  51         "5,1000\n"+
  52         "6,30\n"+
  53         "7,0\n"+
  54         "8,100\n"+
  55         "9,500\n"+
  56         "101,500\n"+
  57         "30,500\n"+
  58         "50,400\n"+
  59         "100,300\n"+
  60         "300,200\n"+
  61         "1000,100\n"+
  62         "";
  63       };
  64
  65       var g0 = new Dygraph(document.getElementById("div_g0"), data0, {});
  66       var g1 = new Dygraph(document.getElementById("div_g1"), data1, {});
  67       var graphs = [ g0, g1 ];
  68       var scales = { x : false, y : false };
  69       function setLogScale(axis, val) {
  70         if (axis === 'y') {
  71           for (var idx = 0; idx < graphs.length; idx++) {
  72             graphs[idx].updateOptions({ logscale: val });
  73           }
  74         } else {
  75           for (var idx = 0; idx < graphs.length; idx++) {
  76             graphs[idx].updateOptions({ axes : { x : {  logscale : val } } });
  77           }
  78         }
  79         scales[axis] = val;
  80         var text = "y: " + (scales.y ? "log" : "linear") + ", x: " + (scales.x ? "log" : "linear");
  81         document.getElementById("description").innerText = text;
  82       }
  83
  84       setLogScale('y', true);
  85     </script>
  86
  87   </body>
  88 </html>