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<head>

	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

	<title>Flot Examples: Navigation</title>

	<link href="../examples.css" rel="stylesheet" type="text/css">

	<style type="text/css">



	#placeholder .button {

		position: absolute;

		cursor: pointer;

	}



	#placeholder div.button {

		font-size: smaller;

		color: #999;

		background-color: #eee;

		padding: 2px;

	}

	.message {

		padding-left: 50px;

		font-size: smaller;

	}



	</style>

	<!--[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.navigate.js"></script>

	<script type="text/javascript">



	$(function() {



		// generate data set from a parametric function with a fractal look



		function sumf(f, t, m) {

			var res = 0;

			for (var i = 1; i < m; ++i) {

				res += f(i * i * t) / (i * i);

			}

			return res;

		}



		var d1 = [];

		for (var t = 0; t <= 2 * Math.PI; t += 0.01) {

			d1.push([sumf(Math.cos, t, 10), sumf(Math.sin, t, 10)]);

		}



		var data = [ d1 ],

			placeholder = $("#placeholder");



		var plot = $.plot(placeholder, data, {

			series: {

				lines: {

					show: true

				},

				shadowSize: 0

			},

			xaxis: {

				zoomRange: [0.1, 10],

				panRange: [-10, 10]

			},

			yaxis: {

				zoomRange: [0.1, 10],

				panRange: [-10, 10]

			},

			zoom: {

				interactive: true

			},

			pan: {

				interactive: true

			}

		});



		// show pan/zoom messages to illustrate events 



		placeholder.bind("plotpan", function (event, plot) {

			var axes = plot.getAxes();

			$(".message").html("Panning to x: "  + axes.xaxis.min.toFixed(2)

			+ " &ndash; " + axes.xaxis.max.toFixed(2)

			+ " and y: " + axes.yaxis.min.toFixed(2)

			+ " &ndash; " + axes.yaxis.max.toFixed(2));

		});



		placeholder.bind("plotzoom", function (event, plot) {

			var axes = plot.getAxes();

			$(".message").html("Zooming to x: "  + axes.xaxis.min.toFixed(2)

			+ " &ndash; " + axes.xaxis.max.toFixed(2)

			+ " and y: " + axes.yaxis.min.toFixed(2)

			+ " &ndash; " + axes.yaxis.max.toFixed(2));

		});



		// add zoom out button 



		$("<div class='button' style='right:20px;top:20px'>zoom out</div>")

			.appendTo(placeholder)

			.click(function (event) {

				event.preventDefault();

				plot.zoomOut();

			});



		// and add panning buttons



		// little helper for taking the repetitive work out of placing

		// panning arrows



		function addArrow(dir, right, top, offset) {

			$("<img class='button' src='arrow-" + dir + ".gif' style='right:" + right + "px;top:" + top + "px'>")

				.appendTo(placeholder)

				.click(function (e) {

					e.preventDefault();

					plot.pan(offset);

				});

		}



		addArrow("left", 55, 60, { left: -100 });

		addArrow("right", 25, 60, { left: 100 });

		addArrow("up", 40, 45, { top: -100 });

		addArrow("down", 40, 75, { top: 100 });



		// Add the Flot version string to the footer



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

	});



	</script>

</head>

<body>



	<div id="header">

		<h2>Navigation</h2>

	</div>



	<div id="content">



		<div class="demo-container">

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

		</div>



		<p class="message"></p>



		<p>With the navigate plugin it is easy to add panning and zooming. Drag to pan, double click to zoom (or use the mouse scrollwheel).</p>



		<p>The plugin fires events (useful for synchronizing several plots) and adds a couple of public methods so you can easily build a little user interface around it, like the little buttons at the top right in the plot.</p>



	</div>



	<div id="footer">

		Copyright &copy; 2007 - 2014 IOLA and Ole Laursen

	</div>



</body>

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