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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: Interacting with axes</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 type="text/javascript">
+
+ $(function() {
+
+ function generate(start, end, fn) {
+ var res = [];
+ for (var i = 0; i <= 100; ++i) {
+ var x = start + i / 100 * (end - start);
+ res.push([x, fn(x)]);
+ }
+ return res;
+ }
+
+ var data = [
+ { data: generate(0, 10, function (x) { return Math.sqrt(x);}), xaxis: 1, yaxis:1 },
+ { data: generate(0, 10, function (x) { return Math.sin(x);}), xaxis: 1, yaxis:2 },
+ { data: generate(0, 10, function (x) { return Math.cos(x);}), xaxis: 1, yaxis:3 },
+ { data: generate(2, 10, function (x) { return Math.tan(x);}), xaxis: 2, yaxis: 4 }
+ ];
+
+ var plot = $.plot("#placeholder", data, {
+ xaxes: [
+ { position: 'bottom' },
+ { position: 'top'}
+ ],
+ yaxes: [
+ { position: 'left' },
+ { position: 'left' },
+ { position: 'right' },
+ { position: 'left' }
+ ]
+ });
+
+ // Create a div for each axis
+
+ $.each(plot.getAxes(), function (i, axis) {
+ if (!axis.show)
+ return;
+
+ var box = axis.box;
+
+ $("<div class='axisTarget' style='position:absolute; left:" + box.left + "px; top:" + box.top + "px; width:" + box.width + "px; height:" + box.height + "px'></div>")
+ .data("axis.direction", axis.direction)
+ .data("axis.n", axis.n)
+ .css({ backgroundColor: "#f00", opacity: 0, cursor: "pointer" })
+ .appendTo(plot.getPlaceholder())
+ .hover(
+ function () { $(this).css({ opacity: 0.10 }) },
+ function () { $(this).css({ opacity: 0 }) }
+ )
+ .click(function () {
+ $("#click").text("You clicked the " + axis.direction + axis.n + "axis!")
+ });
+ });
+
+ // Add the Flot version string to the footer
+
+ $("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
+ });
+
+ </script>
+</head>
+<body>
+
+ <div id="header">
+ <h2>Interacting with axes</h2>
+ </div>
+
+ <div id="content">
+
+ <div class="demo-container">
+ <div id="placeholder" class="demo-placeholder"></div>
+ </div>
+
+ <p>With multiple axes, you sometimes need to interact with them. A simple way to do this is to draw the plot, deduce the axis placements and insert a couple of divs on top to catch events.</p>
+
+ <p>Try clicking an axis.</p>
+
+ <p id="click"></p>
+
+ </div>
+
+ <div id="footer">
+ Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
+ </div>
+
+</body>
+</html>