tests/crosshair.html

   1 <html>
   2   <head>
   3     <title>crosshairs</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     <script type="text/javascript" src="data.js"></script>
  12   </head>
  13   <body>
  14     <p>Hover, click and zoom to test the callbacks:</p>
  15     <div id="div_g" style="width:600px; height:300px; position:relative;">
  16     </div>
  17
  18     <script type="text/javascript">
  19       var lines = [];
  20       var xline;
  21       g = new Dygraph(
  22             document.getElementById("div_g"),
  23             NoisyData, {
  24               rollPeriod: 7,
  25               showRoller: true,
  26               errorBars: true,
  27
  28               highlightCallback: function(e, x, pts) {
  29                 for (var i = 0; i < pts.length; i++) {
  30                   var y = pts[i].canvasy;
  31                   lines[i].style.top = y + "px";
  32                   if (i == 0) xline.style.left = pts[i].canvasx + "px";
  33                 }
  34
  35               }
  36             }
  37           );
  38
  39       for (var i = 0; i < 2; i++) {
  40         var line = document.createElement("div");
  41         line.style.width = "100%";
  42         line.style.height = "1px";
  43         line.style.backgroundColor = "black";
  44         line.style.position = "absolute";
  45         document.getElementById("div_g").appendChild(line);
  46         lines.push(line);
  47       }
  48
  49       xline = document.createElement("div");
  50       xline.style.width = "1px";
  51       xline.style.height = "100%";
  52       xline.style.top = "0px";
  53       xline.style.backgroundColor = "black";
  54       xline.style.position = "absolute";
  55       document.getElementById("div_g").appendChild(xline);
  56     </script>
  57   </body>
  58 </html>