<head>
<title>zoom</title>
<!--[if IE]>
- <script type="text/javascript" src="excanvas.js"></script>
+ <script type="text/javascript" src="../excanvas.js"></script>
<![endif]-->
<script type="text/javascript" src="../strftime/strftime-min.js"></script>
<script type="text/javascript" src="../rgbcolor/rgbcolor.js"></script>
<body>
<h3>Click the buttons to change the zoom level or just use the normal
click-and drag. While zoom typically works by click-and-drag, the
- butons are useful for testing.</h3>
+ buttons are useful for testing.</h3>
<h4>Window coordinates (in dates and values):</h4>
- <div id = "dimensions"></div>
+ <div id="xdimensions"></div> <div id="ydimensions"></div>
<div id="div_g" style="width:600px; height:300px;"></div>
<p><b>Zoom operations:</b></p>
g = new Dygraph(
document.getElementById("div_g"),
NoisyData, {
- zoomCallback : function(a,b,c,d) { showDimensions(a,b,c,d); },
+ errorBars: true,
+ zoomCallback : function(minDate, maxDate, yRanges) {
+ showDimensions(minDate, maxDate, yRanges);
+ }
}
);
var maxDate = g.xAxisRange()[1];
var minValue = g.yAxisRange()[0];
var maxValue = g.yAxisRange()[1];
- showDimensions(minDate, maxDate, minValue, maxValue);
+ showDimensions(minDate, maxDate, [minValue, maxValue]);
- function showDimensions(minDate, maxDate, minValue, maxValue) {
- var elem = document.getElementById("dimensions");
- elem.innerHTML =
- "dateWindow : [" + minDate + " , "+ maxDate + "],<br>" +
- "valueRange : [" + minValue + " , "+ maxValue + "],";
+ function showDimensions(minDate, maxDate, yRanges) {
+ showXDimensions(minDate, maxDate);
+ showYDimensions(yRanges);
+ }
+
+ function showXDimensions(first, second) {
+ var elem = document.getElementById("xdimensions");
+ elem.innerHTML = "dateWindow : [" + first + ", "+ second + "]";
+ }
+
+ function showYDimensions(ranges) {
+ var elem = document.getElementById("ydimensions");
+ elem.innerHTML = "valueRange : [" + ranges + "]";
}
function zoomGraphX(minDate, maxDate) {
- g.doZoomXDates_(minDate, maxDate);
+ g.updateOptions({
+ dateWindow: [minDate, maxDate]
+ });
+ showXDimensions(minDate, maxDate);
}
function zoomGraphY(minValue, maxValue) {
- g.doZoomYValues_(minValue, maxValue);
+ g.updateOptions({
+ valueRange: [minValue, maxValue]
+ });
+ showYDimensions(g.yAxisRanges());
}
function unzoomGraph() {
- g.doUnzoom_();
+ g.updateOptions({
+ dateWindow: null,
+ valueRange: null
+ });
}
</script>