tests/annotation.html

   1 <html>
   2   <head>
   3     <title>demo</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     <style type="text/css">
  12     .annotation {
  13     }
  14     </style>
  15   </head>
  16   <body>
  17     <input type="button" value="Add Annotation" onclick="add()" />
  18     <div id="events"> </div>
  19     <div style="position:absolute; left:100px; top: 200px;" id="g"></div>
  20     <div style="position:absolute; left:600px; top: 200px;" id="list"></div>
  21
  22     <script type="text/javascript">
  23       g = new DateGraph(
  24               document.getElementById("g"),
  25               function() {
  26                 var zp = function(x) { if (x < 10) return "0"+x; else return x; };
  27                 var r = "date,parabola,line,another line,sine wave\n";
  28                 for (var i=1; i<=31; i++) {
  29                 r += "200610" + zp(i);
  30                 r += "," + 10*(i*(31-i));
  31                 r += "," + 10*(8*i);
  32                 r += "," + 10*(250 - 8*i);
  33                 r += "," + 10*(125 + 125 * Math.sin(0.3*i));
  34                 r += "\n";
  35                 }
  36                 return r;
  37               },
  38               {
  39                 rollPeriod: 1,
  40                 showRoller: true,
  41                 width: 480,
  42                 height: 320,
  43                 drawCallback: function(g) {
  44                   var ann = g.annotations();
  45                   var html = "";
  46                   for (var i = 0; i < ann.length; i++) {
  47                     html += "(" + ann[i].series + ", " + ann[i].x + "): " + ann[i].shortText + " -> " + ann[i].text + "<br/>";
  48                   }
  49                   document.getElementById("list").innerHTML = html;
  50                 },
  51               }
  52           );
  53
  54       var last_ann = 0;
  55       annotations = [];
  56       for (var x = 10; x < 15; x += 2) {
  57         annotations.push( {
  58           series: 'sine wave',
  59           x: "200610" + x,
  60           shortText: x,
  61           text: 'Stock Market Crash ' + x
  62         } );
  63         last_ann = x;
  64       }
  65       annotations.push( {
  66         series: 'another line',
  67         x: "20061013",
  68         icon: 'dollar.png',
  69         iconWidth: 18,
  70         iconHeight: 23,
  71         tickHeight: 4,
  72         text: 'Another one',
  73         cssClass: 'annotation',
  74         clickHandler: function() {
  75           document.getElementById("events").innerHTML += "special handler<br/>";
  76         }
  77       } );
  78       g.setAnnotations(annotations);
  79
  80       function add() {
  81         var x = last_ann + 2;
  82         var annnotations = g.annotations();
  83         annotations.push( {
  84           series: 'line',
  85           x: "200610" + x,
  86           shortText: x,
  87           text: 'Line ' + x,
  88           tickHeight: 10
  89         } );
  90         last_ann = x;
  91         g.setAnnotations(annotations);
  92       }
  93
  94       var eventDiv = document.getElementById("events");
  95       function nameAnnotation(ann) {
  96         return "(" + ann.series + ", " + ann.x + ")";
  97       }
  98       g.updateOptions( {
  99         annotationClickHandler: function(ann, point, dg, event) {
 100           eventDiv.innerHTML += "click: " + nameAnnotation(ann) + "<br/>";
 101         },
 102         annotationDblClickHandler: function(ann, point, dg, event) {
 103           eventDiv.innerHTML += "dblclick: " + nameAnnotation(ann) + "<br/>";
 104         },
 105         annotationMouseOverHandler: function(ann, point, dg, event) {
 106           eventDiv.innerHTML += "mouseenter: " + nameAnnotation(ann) + "<br/>";
 107         },
 108         annotationMouseOutHandler: function(ann, point, dg, event) {
 109           eventDiv.innerHTML += "mouseout: " + nameAnnotation(ann) + "<br/>";
 110         }
 111       });
 112     </script>
 113 </body>
 114 </html>