tests/zoom.html

   1 <!DOCTYPE html>
   2 <html>
   3   <head>
   4     <link rel="stylesheet" href="../css/dygraph.css">
   5     <title>zoom</title>
   6     <!--
   7     For production (minified) code, use:
   8     <script type="text/javascript" src="dygraph-combined.js"></script>
   9     -->
  10     <script type="text/javascript" src="../dist/dygraph.js"></script>
  11
  12     <script type="text/javascript" src="data.js"></script>
  13   </head>
  14   <body>
  15     <h3>Click the buttons to change the zoom level or just use the normal
  16     click-and drag. While zoom typically works by click-and-drag, the
  17     buttons are useful for testing.</h3>
  18     <h4>Window coordinates (in dates and values):</h4>
  19     <div id="xdimensions"></div> <div id="ydimensions"></div>
  20     <div style="float: right">
  21         <p>Zoomed: <span id="zoomed">False</span><p/>
  22         <p>Zoomed X: <span id="zoomedX">False</span><p/>
  23         <p>Zoomed Y: <span id="zoomedY">False</span><p/>
  24     </div>
  25     <div id="div_g" style="width:600px; height:300px;"></div>
  26
  27
  28     <p><b>Zoom operations:</b></p>
  29     <p>
  30       <input type="button" value="Y (3,5)" onclick="zoomGraphY(3,5)">&nbsp;
  31       <input type="button" value="Y (0,4)" onclick="zoomGraphY(0,4)">&nbsp;
  32       <input type="button" value="Y (2,4)" onclick="zoomGraphY(2,4)">&nbsp;
  33       <input type="button" value="Y (0,2)" onclick="zoomGraphY(0,2)">&nbsp;
  34       <input type="button" value="Y (0,1)" onclick="zoomGraphY(0,1)">&nbsp;
  35       <br> <br>
  36       <input type="button" value="Oct 8-13" onclick="zoomGraphX(1160261979962, 1163905694248)">&nbsp;
  37       <input type="button" value="Oct 22-28" onclick="zoomGraphX(1161489164461 , 1162008465957)">&nbsp;
  38       <input type="button" value="Oct 23-24" onclick="zoomGraphX(1161575878860, 1161660991675)">&nbsp;
  39       <input type="button" value="Oct 26 6AM-noon" onclick="zoomGraphX(1161770537840, 1161792063332)">&nbsp;
  40       <br> <br>
  41       <input type="button" value="Unzoom" onclick="unzoomGraph()">&nbsp;
  42       <br> <br>
  43       <input type="button" value="pan frame null" onclick="panEdgeFraction(null)">&nbsp;
  44       <input type="button" value="pan frame 0.1" onclick="panEdgeFraction(0.1)">&nbsp;
  45       <input type="button" value="pan frame 0.5" onclick="panEdgeFraction(0.5)">&nbsp;
  46       </p>
  47
  48
  49     <script type="text/javascript">
  50       g = new Dygraph(
  51             document.getElementById("div_g"),
  52             NoisyData, {
  53               errorBars: true,
  54               zoomCallback: function(minDate, maxDate, yRange) {
  55                 showDimensions(minDate, maxDate, yRange);
  56               },
  57               drawCallback: function() {
  58                 document.getElementById("zoomed").innerHTML = "" + this.isZoomed();
  59                 document.getElementById("zoomedX").innerHTML = "" + this.isZoomed("x");
  60                 document.getElementById("zoomedY").innerHTML = "" + this.isZoomed("y");
  61               }
  62             }
  63           );
  64
  65       // TODO(konigsberg): Implement a visualization that verifies that initial
  66       // displays also show correctly.
  67
  68       // Pull an initial value for logging.
  69       var minDate = g.xAxisRange()[0];
  70       var maxDate = g.xAxisRange()[1];
  71       var minValue = g.yAxisRange()[0];
  72       var maxValue = g.yAxisRange()[1];
  73       showDimensions(minDate, maxDate, [minValue, maxValue]);
  74
  75       function showDimensions(minDate, maxDate, yRanges) {
  76         showXDimensions(minDate, maxDate);
  77         showYDimensions(yRanges);
  78       }
  79
  80       function showXDimensions(first, second) {
  81         var elem = document.getElementById("xdimensions");
  82         elem.innerHTML = "dateWindow : [" + first + ", "+ second + "]";
  83       }
  84
  85       function showYDimensions(ranges) {
  86         var elem = document.getElementById("ydimensions");
  87         elem.innerHTML = "valueRange : [" + ranges + "]";
  88       }
  89
  90       function zoomGraphX(minDate, maxDate) {
  91         g.updateOptions({
  92           dateWindow: [minDate, maxDate]
  93         });
  94         showXDimensions(minDate, maxDate);
  95       }
  96
  97       function zoomGraphY(minValue, maxValue) {
  98         g.updateOptions({
  99           valueRange: [minValue, maxValue]
 100         });
 101         showYDimensions(g.yAxisRanges());
 102       }
 103
 104       function unzoomGraph() {
 105         g.updateOptions({
 106           dateWindow: null,
 107           valueRange: null
 108         });
 109       }
 110
 111       function panEdgeFraction(value) {
 112         g.updateOptions({ panEdgeFraction : value });
 113       }
 114     </script>
 115
 116   </body>
 117 </html>