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144 lines
3.3 KiB
144 lines
3.3 KiB
<!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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