tests/zoom.html

   1 <!DOCTYPE html>
   2 <html>
   3   <head>
   4     <link rel="stylesheet" href="../dist/dygraph.css">
   5     <title>zoom</title>
   6     <script type="text/javascript" src="../dist/dygraph.js"></script>
   7
   8     <script type="text/javascript" src="data.js"></script>
   9   </head>
  10   <body>
  11     <h3>Click the buttons to change the zoom level or just use the normal
  12     click-and drag. While zoom typically works by click-and-drag, the
  13     buttons are useful for testing.</h3>
  14     <h4>Window coordinates (in dates and values):</h4>
  15     <div id="xdimensions"></div> <div id="ydimensions"></div>
  16     <div style="float: right">
  17         <p>Zoomed: <span id="zoomed">False</span><p/>
  18         <p>Zoomed X: <span id="zoomedX">False</span><p/>
  19         <p>Zoomed Y: <span id="zoomedY">False</span><p/>
  20     </div>
  21     <div id="div_g" style="width:600px; height:300px;"></div>
  22
  23
  24     <p><b>Zoom operations:</b></p>
  25     <p>
  26       <input type="button" value="Y (3,5)" onclick="zoomGraphY(3,5)">&nbsp;
  27       <input type="button" value="Y (0,4)" onclick="zoomGraphY(0,4)">&nbsp;
  28       <input type="button" value="Y (2,4)" onclick="zoomGraphY(2,4)">&nbsp;
  29       <input type="button" value="Y (0,2)" onclick="zoomGraphY(0,2)">&nbsp;
  30       <input type="button" value="Y (0,1)" onclick="zoomGraphY(0,1)">&nbsp;
  31       <br> <br>
  32       <input type="button" value="Oct 8-13" onclick="zoomGraphX(1160261979962, 1163905694248)">&nbsp;
  33       <input type="button" value="Oct 22-28" onclick="zoomGraphX(1161489164461 , 1162008465957)">&nbsp;
  34       <input type="button" value="Oct 23-24" onclick="zoomGraphX(1161575878860, 1161660991675)">&nbsp;
  35       <input type="button" value="Oct 26 6AM-noon" onclick="zoomGraphX(1161770537840, 1161792063332)">&nbsp;
  36       <br> <br>
  37       <input type="button" value="Unzoom" onclick="unzoomGraph()">&nbsp;
  38       <br> <br>
  39       <input type="button" value="pan frame null" onclick="panEdgeFraction(null)">&nbsp;
  40       <input type="button" value="pan frame 0.1" onclick="panEdgeFraction(0.1)">&nbsp;
  41       <input type="button" value="pan frame 0.5" onclick="panEdgeFraction(0.5)">&nbsp;
  42       </p>
  43
  44
  45     <script type="text/javascript">
  46       g = new Dygraph(
  47             document.getElementById("div_g"),
  48             NoisyData, {
  49               errorBars: true,
  50               zoomCallback: function(minDate, maxDate, yRange) {
  51                 showDimensions(minDate, maxDate, yRange);
  52               },
  53               drawCallback: function() {
  54                 document.getElementById("zoomed").innerHTML = "" + this.isZoomed();
  55                 document.getElementById("zoomedX").innerHTML = "" + this.isZoomed("x");
  56                 document.getElementById("zoomedY").innerHTML = "" + this.isZoomed("y");
  57               }
  58             }
  59           );
  60
  61       // TODO(konigsberg): Implement a visualization that verifies that initial
  62       // displays also show correctly.
  63
  64       // Pull an initial value for logging.
  65       var minDate = g.xAxisRange()[0];
  66       var maxDate = g.xAxisRange()[1];
  67       var minValue = g.yAxisRange()[0];
  68       var maxValue = g.yAxisRange()[1];
  69       showDimensions(minDate, maxDate, [minValue, maxValue]);
  70
  71       function showDimensions(minDate, maxDate, yRanges) {
  72         showXDimensions(minDate, maxDate);
  73         showYDimensions(yRanges);
  74       }
  75
  76       function showXDimensions(first, second) {
  77         var elem = document.getElementById("xdimensions");
  78         elem.innerHTML = "dateWindow : [" + first + ", "+ second + "]";
  79       }
  80
  81       function showYDimensions(ranges) {
  82         var elem = document.getElementById("ydimensions");
  83         elem.innerHTML = "valueRange : [" + ranges + "]";
  84       }
  85
  86       function zoomGraphX(minDate, maxDate) {
  87         g.updateOptions({
  88           dateWindow: [minDate, maxDate]
  89         });
  90         showXDimensions(minDate, maxDate);
  91       }
  92
  93       function zoomGraphY(minValue, maxValue) {
  94         g.updateOptions({
  95           valueRange: [minValue, maxValue]
  96         });
  97         showYDimensions(g.yAxisRanges());
  98       }
  99
 100       function unzoomGraph() {
 101         g.updateOptions({
 102           dateWindow: null,
 103           valueRange: null
 104         });
 105       }
 106
 107       function panEdgeFraction(value) {
 108         g.updateOptions({ panEdgeFraction : value });
 109       }
 110     </script>
 111
 112   </body>
 113 </html>