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authorFilipp Lepalaan <filipp@mac.com>2015-08-04 10:11:24 +0300
committerFilipp Lepalaan <filipp@mac.com>2015-08-04 10:11:24 +0300
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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: Selection and zooming</title>
+ <link href="../examples.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.selection.js"></script>
+ <script type="text/javascript">
+
+ $(function() {
+
+ // setup plot
+
+ function getData(x1, x2) {
+
+ var d = [];
+ for (var i = 0; i <= 100; ++i) {
+ var x = x1 + i * (x2 - x1) / 100;
+ d.push([x, Math.sin(x * Math.sin(x))]);
+ }
+
+ return [
+ { label: "sin(x sin(x))", data: d }
+ ];
+ }
+
+ var options = {
+ legend: {
+ show: false
+ },
+ series: {
+ lines: {
+ show: true
+ },
+ points: {
+ show: true
+ }
+ },
+ yaxis: {
+ ticks: 10
+ },
+ selection: {
+ mode: "xy"
+ }
+ };
+
+ var startData = getData(0, 3 * Math.PI);
+
+ var plot = $.plot("#placeholder", startData, options);
+
+ // Create the overview plot
+
+ var overview = $.plot("#overview", startData, {
+ legend: {
+ show: false
+ },
+ series: {
+ lines: {
+ show: true,
+ lineWidth: 1
+ },
+ shadowSize: 0
+ },
+ xaxis: {
+ ticks: 4
+ },
+ yaxis: {
+ ticks: 3,
+ min: -2,
+ max: 2
+ },
+ grid: {
+ color: "#999"
+ },
+ selection: {
+ mode: "xy"
+ }
+ });
+
+ // now connect the two
+
+ $("#placeholder").bind("plotselected", function (event, ranges) {
+
+ // clamp the zooming to prevent eternal zoom
+
+ if (ranges.xaxis.to - ranges.xaxis.from < 0.00001) {
+ ranges.xaxis.to = ranges.xaxis.from + 0.00001;
+ }
+
+ if (ranges.yaxis.to - ranges.yaxis.from < 0.00001) {
+ ranges.yaxis.to = ranges.yaxis.from + 0.00001;
+ }
+
+ // do the zooming
+
+ plot = $.plot("#placeholder", getData(ranges.xaxis.from, ranges.xaxis.to),
+ $.extend(true, {}, options, {
+ xaxis: { min: ranges.xaxis.from, max: ranges.xaxis.to },
+ yaxis: { min: ranges.yaxis.from, max: ranges.yaxis.to }
+ })
+ );
+
+ // don't fire event on the overview to prevent eternal loop
+
+ overview.setSelection(ranges, true);
+ });
+
+ $("#overview").bind("plotselected", function (event, ranges) {
+ plot.setSelection(ranges);
+ });
+
+ // Add the Flot version string to the footer
+
+ $("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
+ });
+
+ </script>
+</head>
+<body>
+
+ <div id="header">
+ <h2>Selection and zooming</h2>
+ </div>
+
+ <div id="content">
+
+ <div class="demo-container">
+ <div id="placeholder" class="demo-placeholder" style="float:left; width:650px;"></div>
+ <div id="overview" class="demo-placeholder" style="float:right;width:160px; height:125px;"></div>
+ </div>
+
+ <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>
+
+ </div>
+
+ <div id="footer">
+ Copyright &copy; 2007 - 2013 IOLA and Ole Laursen
+ </div>
+
+</body>
+</html>