tests/zoom.html

   1 <!DOCTYPE html>
   2 <html>
   3   <head>
   4     <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7; IE=EmulateIE9">
   5     <title>zoom</title>
   6     <!--[if IE]>
   7     <script type="text/javascript" src="../excanvas.js"></script>
   8     <![endif]-->
   9     <script type="text/javascript" src="../strftime/strftime-min.js"></script>
  10     <script type="text/javascript" src="../rgbcolor/rgbcolor.js"></script>
  11     <script type="text/javascript" src="../dygraph-canvas.js"></script>
  12     <script type="text/javascript" src="../dygraph.js"></script>
  13     <script type="text/javascript" src="data.js"></script>
  14   </head>
  15   <body>
  16     <h3>Click the buttons to change the zoom level or just use the normal
  17     click-and drag. While zoom typically works by click-and-drag, the
  18     buttons are useful for testing.</h3>
  19     <h4>Window coordinates (in dates and values):</h4>
  20     <div id="xdimensions"></div> <div id="ydimensions"></div>
  21     <div id="div_g" style="width:600px; height:300px;"></div>
  22
  23     <p><b>Zoom operations:</b></p>
  24     <p>
  25       <input type="button" value="Y (3,5)" onclick="zoomGraphY(3,5)">&nbsp;
  26       <input type="button" value="Y (0,4)" onclick="zoomGraphY(0,4)">&nbsp;
  27       <input type="button" value="Y (2,4)" onclick="zoomGraphY(2,4)">&nbsp;
  28       <input type="button" value="Y (0,2)" onclick="zoomGraphY(0,2)">&nbsp;
  29       <input type="button" value="Y (0,1)" onclick="zoomGraphY(0,1)">&nbsp;
  30       <br> <br>
  31       <input type="button" value="Oct 8-13" onclick="zoomGraphX(1160261979962, 1163905694248)">&nbsp;
  32       <input type="button" value="Oct 22-28" onclick="zoomGraphX(1161489164461 , 1162008465957)">&nbsp;
  33       <input type="button" value="Oct 23-24" onclick="zoomGraphX(1161575878860, 1161660991675)">&nbsp;
  34       <input type="button" value="Oct 26 6AM-noon" onclick="zoomGraphX(1161770537840, 1161792063332)">&nbsp;
  35       <br> <br>
  36       <input type="button" value="Unzoom" onclick="unzoomGraph()">&nbsp;
  37       <br> <br>
  38       <input type="button" value="pan frame 0" onclick="panEdgeFraction(0)">&nbsp;
  39       <input type="button" value="pan frame 0.1" onclick="panEdgeFraction(0.1)">&nbsp;
  40       <input type="button" value="pan frame 0.5" onclick="panEdgeFraction(0.5)">&nbsp;
  41       </p>
  42
  43
  44     <script type="text/javascript">
  45       g = new Dygraph(
  46             document.getElementById("div_g"),
  47             NoisyData, {
  48               errorBars: true,
  49               zoomCallback : function(minDate, maxDate, yRanges) {
  50                 showDimensions(minDate, maxDate, yRanges);
  51               }
  52             }
  53           );
  54
  55       // TODO(konigsberg): Implement a visualization that verifies that initial
  56       // displays also show correctly.
  57
  58       // Pull an initial value for logging.
  59       var minDate = g.xAxisRange()[0];
  60       var maxDate = g.xAxisRange()[1];
  61       var minValue = g.yAxisRange()[0];
  62       var maxValue = g.yAxisRange()[1];
  63       showDimensions(minDate, maxDate, [minValue, maxValue]);
  64
  65       function showDimensions(minDate, maxDate, yRanges) {
  66         showXDimensions(minDate, maxDate);
  67         showYDimensions(yRanges);
  68       }
  69
  70       function showXDimensions(first, second) {
  71         var elem = document.getElementById("xdimensions");
  72         elem.innerHTML = "dateWindow : [" + first + ", "+ second + "]";
  73       }
  74
  75       function showYDimensions(ranges) {
  76         var elem = document.getElementById("ydimensions");
  77         elem.innerHTML = "valueRange : [" + ranges + "]";
  78       }
  79
  80       function zoomGraphX(minDate, maxDate) {
  81         g.updateOptions({
  82           dateWindow: [minDate, maxDate]
  83         });
  84         showXDimensions(minDate, maxDate);
  85       }
  86
  87       function zoomGraphY(minValue, maxValue) {
  88         g.updateOptions({
  89           valueRange: [minValue, maxValue]
  90         });
  91         showYDimensions(g.yAxisRanges());
  92       }
  93
  94       function unzoomGraph() {
  95         g.updateOptions({
  96           dateWindow: null,
  97           valueRange: null
  98         });
  99       }
 100
 101       function panEdgeFraction(value) {
 102         g.updateOptions({ panEdgeFraction : value });
 103       }
 104     </script>
 105
 106   </body>
 107 </html>