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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Flot Examples</title>
<link href="layout.css" rel="stylesheet" type="text/css">
<!--[if lte IE 8]><script language="javascript" type="text/javascript" src="../excanvas.min.js"></script><![endif]-->
<script language="javascript" type="text/javascript" src="../jquery.js"></script>
<script language="javascript" type="text/javascript" src="../jquery.flot.js"></script>
<script language="javascript" type="text/javascript" src="../jquery.flot.navigate.js"></script>
<style type="text/css">
#placeholder .button {
position: absolute;
cursor: pointer;
}
#placeholder div.button {
font-size: smaller;
color: #999;
background-color: #eee;
padding: 2px;
}
.message {
padding-left: 50px;
font-size: smaller;
}
</style>
</head>
<body>
<h1>Flot Examples</h1>
<div id="placeholder" style="width:600px;height:300px;"></div>
<p class="message"></p>
<p>With the navigate plugin it is easy to add panning and zooming.
Drag to pan, double click to zoom (or use the mouse scrollwheel).</p>
<p>The plugin fires events (useful for synchronizing several
plots) and adds a couple of public methods so you can easily build
a little user interface around it, like the little buttons at the
top right in the plot.</p>
<script type="text/javascript">
$(function () {
// generate data set from a parametric function with a fractal
// look
function sumf(f, t, m) {
var res = 0;
for (var i = 1; i < m; ++i)
res += f(i * i * t) / (i * i);
return res;
}
var d1 = [];
for (var t = 0; t <= 2 * Math.PI; t += 0.01)
d1.push([sumf(Math.cos, t, 10), sumf(Math.sin, t, 10)]);
var data = [ d1 ];
var placeholder = $("#placeholder");
var options = {
series: { lines: { show: true }, shadowSize: 0 },
xaxis: { zoomRange: [0.1, 10], panRange: [-10, 10] },
yaxis: { zoomRange: [0.1, 10], panRange: [-10, 10] },
zoom: {
interactive: true
},
pan: {
interactive: true
}
};
var plot = $.plot(placeholder, data, options);
// show pan/zoom messages to illustrate events
placeholder.bind('plotpan', function (event, plot) {
var axes = plot.getAxes();
$(".message").html("Panning to x: " + axes.xaxis.min.toFixed(2)
+ " &ndash; " + axes.xaxis.max.toFixed(2)
+ " and y: " + axes.yaxis.min.toFixed(2)
+ " &ndash; " + axes.yaxis.max.toFixed(2));
});
placeholder.bind('plotzoom', function (event, plot) {
var axes = plot.getAxes();
$(".message").html("Zooming to x: " + axes.xaxis.min.toFixed(2)
+ " &ndash; " + axes.xaxis.max.toFixed(2)
+ " and y: " + axes.yaxis.min.toFixed(2)
+ " &ndash; " + axes.yaxis.max.toFixed(2));
});
// add zoom out button
$('<div class="button" style="right:20px;top:20px">zoom out</div>').appendTo(placeholder).click(function (e) {
e.preventDefault();
plot.zoomOut();
});
// and add panning buttons
// little helper for taking the repetitive work out of placing
// panning arrows
function addArrow(dir, right, top, offset) {
$('<img class="button" src="arrow-' + dir + '.gif" style="right:' + right + 'px;top:' + top + 'px">').appendTo(placeholder).click(function (e) {
e.preventDefault();
plot.pan(offset);
});
}
addArrow('left', 55, 60, { left: -100 });
addArrow('right', 25, 60, { left: 100 });
addArrow('up', 40, 45, { top: -100 });
addArrow('down', 40, 75, { top: 100 });
});
</script>
</body>
</html>
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