tests/zoom.html

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