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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 + " – "); }); </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 © 2007 - 2013 IOLA and Ole Laursen </div> </body> </html>