tests/zoom.html

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