mirror of
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145 lines
3.3 KiB
HTML
145 lines
3.3 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.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: Selection and zooming</title>
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<link href="../examples.css" rel="stylesheet" type="text/css">
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<!--[if lte IE 8]><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.selection.js"></script>
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<script type="text/javascript">
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$(function() {
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// setup plot
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function getData(x1, x2) {
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var d = [];
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for (var i = 0; i <= 100; ++i) {
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var x = x1 + i * (x2 - x1) / 100;
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d.push([x, Math.sin(x * Math.sin(x))]);
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}
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return [
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{ label: "sin(x sin(x))", data: d }
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];
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}
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var options = {
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legend: {
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show: false
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},
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series: {
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lines: {
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show: true
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},
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points: {
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show: true
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}
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},
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yaxis: {
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ticks: 10
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},
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selection: {
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mode: "xy"
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}
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};
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var startData = getData(0, 3 * Math.PI);
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var plot = $.plot("#placeholder", startData, options);
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// Create the overview plot
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var overview = $.plot("#overview", startData, {
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legend: {
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show: false
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},
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series: {
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lines: {
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show: true,
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lineWidth: 1
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},
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shadowSize: 0
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},
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xaxis: {
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ticks: 4
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},
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yaxis: {
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ticks: 3,
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min: -2,
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max: 2
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},
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grid: {
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color: "#999"
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},
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selection: {
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mode: "xy"
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}
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});
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// now connect the two
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$("#placeholder").bind("plotselected", function (event, ranges) {
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// clamp the zooming to prevent eternal zoom
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if (ranges.xaxis.to - ranges.xaxis.from < 0.00001) {
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ranges.xaxis.to = ranges.xaxis.from + 0.00001;
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}
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if (ranges.yaxis.to - ranges.yaxis.from < 0.00001) {
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ranges.yaxis.to = ranges.yaxis.from + 0.00001;
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}
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// do the zooming
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plot = $.plot("#placeholder", getData(ranges.xaxis.from, ranges.xaxis.to),
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$.extend(true, {}, options, {
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xaxis: { min: ranges.xaxis.from, max: ranges.xaxis.to },
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yaxis: { min: ranges.yaxis.from, max: ranges.yaxis.to }
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})
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);
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// don't fire event on the overview to prevent eternal loop
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overview.setSelection(ranges, true);
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});
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$("#overview").bind("plotselected", function (event, ranges) {
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plot.setSelection(ranges);
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});
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// Add the Flot version string to the footer
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$("#footer").prepend("Flot " + $.plot.version + " – ");
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});
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</script>
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</head>
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<body>
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<div id="header">
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<h2>Selection and zooming</h2>
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</div>
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<div id="content">
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<div class="demo-container">
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<div id="placeholder" class="demo-placeholder" style="float:left; width:650px;"></div>
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<div id="overview" class="demo-placeholder" style="float:right;width:160px; height:125px;"></div>
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</div>
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<p>Selection support makes it easy to construct flexible zooming schemes. With a few lines of code, the small overview plot to the right has been connected to the large plot. Try selecting a rectangle on either of them.</p>
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</div>
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<div id="footer">
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Copyright © 2007 - 2014 IOLA and Ole Laursen
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</div>
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</body>
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</html>
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