tests/zoom.html

   1 <!DOCTYPE html>
   2 <html>
   3   <head>
   4     <title>zoom</title>
   5     <!--[if IE]>
   6     <script type="text/javascript" src="../excanvas.js"></script>
   7     <![endif]-->
   8     <script type="text/javascript" src="../strftime/strftime-min.js"></script>
   9     <script type="text/javascript" src="../rgbcolor/rgbcolor.js"></script>
  10     <script type="text/javascript" src="../dygraph-canvas.js"></script>
  11     <script type="text/javascript" src="../dygraph.js"></script>
  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 id="div_g" style="width:600px; height:300px;"></div>
  21
  22     <p><b>Zoom operations:</b></p>
  23     <p>
  24       <input type="button" value="Y (3,5)" onclick="zoomGraphY(3,5)">&nbsp;
  25       <input type="button" value="Y (0,4)" onclick="zoomGraphY(0,4)">&nbsp;
  26       <input type="button" value="Y (2,4)" onclick="zoomGraphY(2,4)">&nbsp;
  27       <input type="button" value="Y (0,2)" onclick="zoomGraphY(0,2)">&nbsp;
  28       <input type="button" value="Y (0,1)" onclick="zoomGraphY(0,1)">&nbsp;
  29       <br>
  30       <input type="button" value="Oct 8-13" onclick="zoomGraphX(1160261979962, 1163905694248)">&nbsp;
  31       <input type="button" value="Oct 22-28" onclick="zoomGraphX(1161489164461 , 1162008465957)">&nbsp;
  32       <input type="button" value="Oct 23-24" onclick="zoomGraphX(1161575878860, 1161660991675)">&nbsp;
  33       <input type="button" value="Oct 26 6AM-noon" onclick="zoomGraphX(1161770537840, 1161792063332)">&nbsp;
  34       <br>
  35       <input type="button" value="Unzoom" onclick="unzoomGraph()">&nbsp;
  36       </p>
  37
  38
  39     <script type="text/javascript">
  40       g = new Dygraph(
  41             document.getElementById("div_g"),
  42             NoisyData, {
  43               errorBars: true,
  44               zoomCallback : function(minDate, maxDate, yRanges) {
  45                 showDimensions(minDate, maxDate, yRanges);
  46               }
  47             }
  48           );
  49
  50       // TODO(konigsberg): Implement a visualization that verifies that initial
  51       // displays also show correctly.
  52
  53       // Pull an initial value for logging.
  54       var minDate = g.xAxisRange()[0];
  55       var maxDate = g.xAxisRange()[1];
  56       var minValue = g.yAxisRange()[0];
  57       var maxValue = g.yAxisRange()[1];
  58       showDimensions(minDate, maxDate, [minValue, maxValue]);
  59
  60       function showDimensions(minDate, maxDate, yRanges) {
  61         showXDimensions(minDate, maxDate);
  62         showYDimensions(yRanges);
  63       }
  64
  65       function showXDimensions(first, second) {
  66         var elem = document.getElementById("xdimensions");
  67         elem.innerHTML = "dateWindow : [" + first + ", "+ second + "]";
  68       }
  69
  70       function showYDimensions(ranges) {
  71         var elem = document.getElementById("ydimensions");
  72         elem.innerHTML = "valueRange : [" + ranges + "]";
  73       }
  74
  75       function zoomGraphX(minDate, maxDate) {
  76         g.updateOptions({
  77           dateWindow: [minDate, maxDate]
  78         });
  79         showXDimensions(minDate, maxDate);
  80       }
  81
  82       function zoomGraphY(minValue, maxValue) {
  83         g.updateOptions({
  84           valueRange: [minValue, maxValue]
  85         });
  86         showYDimensions(g.yAxisRanges());
  87       }
  88
  89       function unzoomGraph() {
  90         g.updateOptions({
  91           dateWindow: null,
  92           valueRange: null
  93         });
  94       }
  95     </script>
  96
  97   </body>
  98 </html>