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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Flot Examples: Navigation</title>
<link href="../examples.css" rel="stylesheet" type="text/css">
<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>
<!--[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>
<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 ],
placeholder = $("#placeholder");
var plot = $.plot(placeholder, data, {
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
}
});
// 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)
+ " – " + axes.xaxis.max.toFixed(2)
+ " and y: " + axes.yaxis.min.toFixed(2)
+ " – " + 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)
+ " – " + axes.xaxis.max.toFixed(2)
+ " and y: " + axes.yaxis.min.toFixed(2)
+ " – " + axes.yaxis.max.toFixed(2));
});
// add zoom out button
$("<div class='button' style='right:20px;top:20px'>zoom out</div>")
.appendTo(placeholder)
.click(function (event) {
event.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 });
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " – ");
});
</script>
</head>
<body>
<div id="header">
<h2>Navigation</h2>
</div>
<div id="content">
<div class="demo-container">
<div id="placeholder" class="demo-placeholder"></div>
</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>
</div>
<div id="footer">
Copyright © 2007 - 2013 IOLA and Ole Laursen
</div>
</body>
</html>
|
