root / hci / trunk / eneraptor-web-app / web-app / js / flot / examples / navigate.html @ 11
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
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<title>Flot Examples</title> |
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<link href="layout.css" rel="stylesheet" type="text/css"></link> |
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<!--[if IE]><script language="javascript" type="text/javascript" src="../excanvas.min.js"></script><![endif]-->
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<script language="javascript" type="text/javascript" src="../jquery.js"></script> |
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<script language="javascript" type="text/javascript" src="../jquery.flot.js"></script> |
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<script language="javascript" type="text/javascript" src="../jquery.flot.navigate.js"></script> |
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<style>
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#placeholder .button {
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position: absolute;
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cursor: pointer;
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}
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#placeholder div.button {
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font-size: smaller;
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color: #999;
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background-color: #eee;
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padding: 2px;
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}
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.message {
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padding-left: 50px;
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font-size: smaller;
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}
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</style>
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</head>
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<body>
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<h1>Flot Examples</h1> |
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<div id="placeholder" style="width:600px;height:300px;"></div> |
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<p class="message"></p> |
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<p>With the navigate plugin it is easy to add panning and zooming.
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Drag to pan, double click to zoom (or use the mouse scrollwheel).</p>
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<p>The plugin fires events (useful for synchronizing several
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plots) and adds a couple of public methods so you can easily build |
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a little user interface around it, like the little buttons at the |
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top right in the plot.</p>
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<script id="source" language="javascript" type="text/javascript"> |
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$(function () {
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// generate data set from a parametric function with a fractal
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// look
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function sumf(f, t, m) {
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var res = 0;
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for (var i = 1; i < m; ++i)
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res += f(i * i * t) / (i * i);
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return res;
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}
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var d1 = [];
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for (var t = 0; t <= 2 * Math.PI; t += 0.01)
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d1.push([sumf(Math.cos, t, 10), sumf(Math.sin, t, 10)]);
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var data = [ d1 ];
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var placeholder = $("#placeholder");
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var options = {
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series: { lines: { show: true }, shadowSize: 0 },
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xaxis: { zoomRange: [0.1, 10], panRange: [-10, 10] },
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yaxis: { zoomRange: [0.1, 10], panRange: [-10, 10] },
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zoom: {
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interactive: true
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},
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pan: {
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interactive: true
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}
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};
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var plot = $.plot(placeholder, data, options);
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// show pan/zoom messages to illustrate events
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placeholder.bind('plotpan', function (event, plot) {
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var axes = plot.getAxes();
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$(".message").html("Panning to x: " + axes.xaxis.min.toFixed(2)
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+ " – " + axes.xaxis.max.toFixed(2)
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+ " and y: " + axes.yaxis.min.toFixed(2)
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+ " – " + axes.yaxis.max.toFixed(2));
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});
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placeholder.bind('plotzoom', function (event, plot) {
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var axes = plot.getAxes();
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$(".message").html("Zooming to x: " + axes.xaxis.min.toFixed(2)
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+ " – " + axes.xaxis.max.toFixed(2)
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+ " and y: " + axes.yaxis.min.toFixed(2)
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+ " – " + axes.yaxis.max.toFixed(2));
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});
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// add zoom out button
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$('<div class="button" style="right:20px;top:20px">zoom out</div>').appendTo(placeholder).click(function (e) {
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e.preventDefault();
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plot.zoomOut();
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});
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// and add panning buttons
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// little helper for taking the repetitive work out of placing
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// panning arrows
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function addArrow(dir, right, top, offset) {
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$('<img class="button" src="arrow-' + dir + '.gif" style="right:' + right + 'px;top:' + top + 'px">').appendTo(placeholder).click(function (e) {
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e.preventDefault();
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plot.pan(offset);
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});
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}
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addArrow('left', 55, 60, { left: -100 });
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addArrow('right', 25, 60, { left: 100 });
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addArrow('up', 40, 45, { top: -100 });
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addArrow('down', 40, 75, { top: 100 });
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});
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</script>
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</body>
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</html>
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