SMusatov
/
gentelella
mirror of https://github.com/ColorlibHQ/gentelella.git


			
				
					
						
						
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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: Tracking</title>
	<link href="../examples.css" rel="stylesheet" type="text/css">
	<script language="javascript" type="text/javascript" src="../../source/jquery.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.canvaswrapper.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.colorhelpers.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.saturated.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.browser.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.drawSeries.js"></script>
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	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.uiConstants.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.logaxis.js"></script>
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	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.hover.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.touch.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.time.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.axislabels.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.selection.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.composeImages.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.legend.js"></script>
	<script language="javascript" type="text/javascript" src="../../source/jquery.flot.crosshair.js"></script>
	<script type="text/javascript">

	$(function() {

		var sin = [], cos = [];
		for (var i = 0; i < 14; i += 0.1) {
			sin.push([i, Math.sin(i)]);
			cos.push([i, Math.cos(i)]);
		}

		plot = $.plot("#placeholder", [
			{ data: sin, label: "sin(x) = -0.00"},
			{ data: cos, label: "cos(x) = -0.00" }
		], {
            legend: {
                show: true
            },
			series: {
				lines: {
					show: true,
					lineWidth: 2
				}
			},
			crosshair: {
				mode: "xy"
			},
			grid: {
				hoverable: true,
				clickable: true,
				autoHighlight: false
			},
			yaxis: {
				min: -1.2,
				max: 1.2
			}
		});

		var legends = $("#placeholder .legendLayer text tspan");

		legends.each(function () {
			// fix the widths so they don't jump around
			$(this).css('width', $(this).width());
		});

		var updateLegendTimeout = null;
		var latestPosition = null;

		function updateLegend() {

			updateLegendTimeout = null;
			var pos = latestPosition;
			var axes = plot.getAxes();

			if (pos.x < axes.xaxis.min || pos.x > axes.xaxis.max ||
				pos.y < axes.yaxis.min || pos.y > axes.yaxis.max) {
				return;
			}

			var i, j, dataset = plot.getData();

			for (i = 0; i < dataset.length; ++i) {
				var series = dataset[i];
				// Find the nearest points, x-wise
				for (j = 0; j < series.data.length; ++j) {
					if (series.data[j][0] > pos.x) {
						break;
					}
				}
				// Now Interpolate
				var y,
					p1 = series.data[j - 1],
					p2 = series.data[j];
				if (p1 == null) {
					y = p2[1];
				} else if (p2 == null) {
					y = p1[1];
				} else {
					y = p1[1] + (p2[1] - p1[1]) * (pos.x - p1[0]) / (p2[0] - p1[0]);
				}
				legends.eq(i).text(series.label.replace(/=.*/, "= " + y.toFixed(2)));
			}
		}

		$("#placeholder").bind("plothover", function (event, pos, item) {
			latestPosition = pos;
			if (!updateLegendTimeout) {
				updateLegendTimeout = setTimeout(updateLegend, 50);
			}
		}).bind("plotclick", function (event, pos, item) {
		    plot.lockCrosshair(pos);
		});;

		// Add the Flot version string to the footer

		$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
	});

	</script>
</head>
<body>

	<div id="header">
		<h2>Tracking</h2>
	</div>

	<div id="content">

		<div class="demo-container">
			<div id="placeholder" class="demo-placeholder"></div>
		</div>

		<p>You can add crosshairs that'll track the mouse position, either on both axes or as here on only one.</p>

		<p>If you combine it with listening on hover events, you can use it to track the intersection on the curves by interpolating the data points (look at the legend).</p>

		<p id="hoverdata"></p>

	</div>

	<div id="footer">
		Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
	</div>

</body>
</html>