Commit 04afc77f authored by Huang's avatar Huang
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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: 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>
</html>
<!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: Percentiles</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 language="javascript" type="text/javascript" src="../../jquery.flot.fillbetween.js"></script>
<script type="text/javascript">
$(function() {
var males = {"15%": [[2, 88.0], [3, 93.3], [4, 102.0], [5, 108.5], [6, 115.7], [7, 115.6], [8, 124.6], [9, 130.3], [10, 134.3], [11, 141.4], [12, 146.5], [13, 151.7], [14, 159.9], [15, 165.4], [16, 167.8], [17, 168.7], [18, 169.5], [19, 168.0]], "90%": [[2, 96.8], [3, 105.2], [4, 113.9], [5, 120.8], [6, 127.0], [7, 133.1], [8, 139.1], [9, 143.9], [10, 151.3], [11, 161.1], [12, 164.8], [13, 173.5], [14, 179.0], [15, 182.0], [16, 186.9], [17, 185.2], [18, 186.3], [19, 186.6]], "25%": [[2, 89.2], [3, 94.9], [4, 104.4], [5, 111.4], [6, 117.5], [7, 120.2], [8, 127.1], [9, 132.9], [10, 136.8], [11, 144.4], [12, 149.5], [13, 154.1], [14, 163.1], [15, 169.2], [16, 170.4], [17, 171.2], [18, 172.4], [19, 170.8]], "10%": [[2, 86.9], [3, 92.6], [4, 99.9], [5, 107.0], [6, 114.0], [7, 113.5], [8, 123.6], [9, 129.2], [10, 133.0], [11, 140.6], [12, 145.2], [13, 149.7], [14, 158.4], [15, 163.5], [16, 166.9], [17, 167.5], [18, 167.1], [19, 165.3]], "mean": [[2, 91.9], [3, 98.5], [4, 107.1], [5, 114.4], [6, 120.6], [7, 124.7], [8, 131.1], [9, 136.8], [10, 142.3], [11, 150.0], [12, 154.7], [13, 161.9], [14, 168.7], [15, 173.6], [16, 175.9], [17, 176.6], [18, 176.8], [19, 176.7]], "75%": [[2, 94.5], [3, 102.1], [4, 110.8], [5, 117.9], [6, 124.0], [7, 129.3], [8, 134.6], [9, 141.4], [10, 147.0], [11, 156.1], [12, 160.3], [13, 168.3], [14, 174.7], [15, 178.0], [16, 180.2], [17, 181.7], [18, 181.3], [19, 182.5]], "85%": [[2, 96.2], [3, 103.8], [4, 111.8], [5, 119.6], [6, 125.6], [7, 131.5], [8, 138.0], [9, 143.3], [10, 149.3], [11, 159.8], [12, 162.5], [13, 171.3], [14, 177.5], [15, 180.2], [16, 183.8], [17, 183.4], [18, 183.5], [19, 185.5]], "50%": [[2, 91.9], [3, 98.2], [4, 106.8], [5, 114.6], [6, 120.8], [7, 125.2], [8, 130.3], [9, 137.1], [10, 141.5], [11, 149.4], [12, 153.9], [13, 162.2], [14, 169.0], [15, 174.8], [16, 176.0], [17, 176.8], [18, 176.4], [19, 177.4]]};
var females = {"15%": [[2, 84.8], [3, 93.7], [4, 100.6], [5, 105.8], [6, 113.3], [7, 119.3], [8, 124.3], [9, 131.4], [10, 136.9], [11, 143.8], [12, 149.4], [13, 151.2], [14, 152.3], [15, 155.9], [16, 154.7], [17, 157.0], [18, 156.1], [19, 155.4]], "90%": [[2, 95.6], [3, 104.1], [4, 111.9], [5, 119.6], [6, 127.6], [7, 133.1], [8, 138.7], [9, 147.1], [10, 152.8], [11, 161.3], [12, 166.6], [13, 167.9], [14, 169.3], [15, 170.1], [16, 172.4], [17, 169.2], [18, 171.1], [19, 172.4]], "25%": [[2, 87.2], [3, 95.9], [4, 101.9], [5, 107.4], [6, 114.8], [7, 121.4], [8, 126.8], [9, 133.4], [10, 138.6], [11, 146.2], [12, 152.0], [13, 153.8], [14, 155.7], [15, 158.4], [16, 157.0], [17, 158.5], [18, 158.4], [19, 158.1]], "10%": [[2, 84.0], [3, 91.9], [4, 99.2], [5, 105.2], [6, 112.7], [7, 118.0], [8, 123.3], [9, 130.2], [10, 135.0], [11, 141.1], [12, 148.3], [13, 150.0], [14, 150.7], [15, 154.3], [16, 153.6], [17, 155.6], [18, 154.7], [19, 153.1]], "mean": [[2, 90.2], [3, 98.3], [4, 105.2], [5, 112.2], [6, 119.0], [7, 125.8], [8, 131.3], [9, 138.6], [10, 144.2], [11, 151.3], [12, 156.7], [13, 158.6], [14, 160.5], [15, 162.1], [16, 162.9], [17, 162.2], [18, 163.0], [19, 163.1]], "75%": [[2, 93.2], [3, 101.5], [4, 107.9], [5, 116.6], [6, 122.8], [7, 129.3], [8, 135.2], [9, 143.7], [10, 148.7], [11, 156.9], [12, 160.8], [13, 163.0], [14, 165.0], [15, 165.8], [16, 168.7], [17, 166.2], [18, 167.6], [19, 168.0]], "85%": [[2, 94.5], [3, 102.8], [4, 110.4], [5, 119.0], [6, 125.7], [7, 131.5], [8, 137.9], [9, 146.0], [10, 151.3], [11, 159.9], [12, 164.0], [13, 166.5], [14, 167.5], [15, 168.5], [16, 171.5], [17, 168.0], [18, 169.8], [19, 170.3]], "50%": [[2, 90.2], [3, 98.1], [4, 105.2], [5, 111.7], [6, 118.2], [7, 125.6], [8, 130.5], [9, 138.3], [10, 143.7], [11, 151.4], [12, 156.7], [13, 157.7], [14, 161.0], [15, 162.0], [16, 162.8], [17, 162.2], [18, 162.8], [19, 163.3]]};
var dataset = [
{ label: "Female mean", data: females["mean"], lines: { show: true }, color: "rgb(255,50,50)" },
{ id: "f15%", data: females["15%"], lines: { show: true, lineWidth: 0, fill: false }, color: "rgb(255,50,50)" },
{ id: "f25%", data: females["25%"], lines: { show: true, lineWidth: 0, fill: 0.2 }, color: "rgb(255,50,50)", fillBetween: "f15%" },
{ id: "f50%", data: females["50%"], lines: { show: true, lineWidth: 0.5, fill: 0.4, shadowSize: 0 }, color: "rgb(255,50,50)", fillBetween: "f25%" },
{ id: "f75%", data: females["75%"], lines: { show: true, lineWidth: 0, fill: 0.4 }, color: "rgb(255,50,50)", fillBetween: "f50%" },
{ id: "f85%", data: females["85%"], lines: { show: true, lineWidth: 0, fill: 0.2 }, color: "rgb(255,50,50)", fillBetween: "f75%" },
{ label: "Male mean", data: males["mean"], lines: { show: true }, color: "rgb(50,50,255)" },
{ id: "m15%", data: males["15%"], lines: { show: true, lineWidth: 0, fill: false }, color: "rgb(50,50,255)" },
{ id: "m25%", data: males["25%"], lines: { show: true, lineWidth: 0, fill: 0.2 }, color: "rgb(50,50,255)", fillBetween: "m15%" },
{ id: "m50%", data: males["50%"], lines: { show: true, lineWidth: 0.5, fill: 0.4, shadowSize: 0 }, color: "rgb(50,50,255)", fillBetween: "m25%" },
{ id: "m75%", data: males["75%"], lines: { show: true, lineWidth: 0, fill: 0.4 }, color: "rgb(50,50,255)", fillBetween: "m50%" },
{ id: "m85%", data: males["85%"], lines: { show: true, lineWidth: 0, fill: 0.2 }, color: "rgb(50,50,255)", fillBetween: "m75%" }
];
$.plot($("#placeholder"), dataset, {
xaxis: {
tickDecimals: 0
},
yaxis: {
tickFormatter: function (v) {
return v + " cm";
}
},
legend: {
position: "se"
}
});
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
});
</script>
</head>
<body>
<div id="header">
<h2>Percentiles</h2>
</div>
<div id="content">
<div class="demo-container">
<div id="placeholder" class="demo-placeholder"></div>
</div>
<p>Height in centimeters of individuals from the US (2003-2006) as function of age in years (source: <a href="http://www.cdc.gov/nchs/data/nhsr/nhsr010.pdf">CDC</a>). The 15%-85%, 25%-75% and 50% percentiles are indicated.</p>
<p>For each point of a filled curve, you can specify an arbitrary bottom. As this example illustrates, this can be useful for plotting percentiles. If you have the data sets available without appropriate fill bottoms, you can use the fillbetween plugin to compute the data point bottoms automatically.</p>
</div>
<div id="footer">
Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
</div>
</body>
</html>
<!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: Real-time updates</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() {
// We use an inline data source in the example, usually data would
// be fetched from a server
var data = [],
totalPoints = 300;
function getRandomData() {
if (data.length > 0)
data = data.slice(1);
// Do a random walk
while (data.length < totalPoints) {
var prev = data.length > 0 ? data[data.length - 1] : 50,
y = prev + Math.random() * 10 - 5;
if (y < 0) {
y = 0;
} else if (y > 100) {
y = 100;
}
data.push(y);
}
// Zip the generated y values with the x values
var res = [];
for (var i = 0; i < data.length; ++i) {
res.push([i, data[i]])
}
return res;
}
// Set up the control widget
var updateInterval = 30;
$("#updateInterval").val(updateInterval).change(function () {
var v = $(this).val();
if (v && !isNaN(+v)) {
updateInterval = +v;
if (updateInterval < 1) {
updateInterval = 1;
} else if (updateInterval > 2000) {
updateInterval = 2000;
}
$(this).val("" + updateInterval);
}
});
var plot = $.plot("#placeholder", [ getRandomData() ], {
series: {
shadowSize: 0 // Drawing is faster without shadows
},
yaxis: {
min: 0,
max: 100
},
xaxis: {
show: false
}
});
function update() {
plot.setData([getRandomData()]);
// Since the axes don't change, we don't need to call plot.setupGrid()
plot.draw();
setTimeout(update, updateInterval);
}
update();
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
});
</script>
</head>
<body>
<div id="header">
<h2>Real-time updates</h2>
</div>
<div id="content">
<div class="demo-container">
<div id="placeholder" class="demo-placeholder"></div>
</div>
<p>You can update a chart periodically to get a real-time effect by using a timer to insert the new data in the plot and redraw it.</p>
<p>Time between updates: <input id="updateInterval" type="text" value="" style="text-align: right; width:5em"> milliseconds</p>
</div>
<div id="footer">
Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
</div>
</body>
</html>
<!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: Resizing</title>
<link href="../examples.css" rel="stylesheet" type="text/css">
<link href="../shared/jquery-ui/jquery-ui.min.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="../shared/jquery-ui/jquery-ui.min.js"></script>
<script language="javascript" type="text/javascript" src="../../jquery.flot.js"></script>
<script language="javascript" type="text/javascript" src="../../jquery.flot.resize.js"></script>
<script type="text/javascript">
$(function() {
var d1 = [];
for (var i = 0; i < 14; i += 0.5) {
d1.push([i, Math.sin(i)]);
}
var d2 = [[0, 3], [4, 8], [8, 5], [9, 13]];
var d3 = [[0, 12], [7, 12], null, [7, 2.5], [12, 2.5]];
var placeholder = $("#placeholder");
var plot = $.plot(placeholder, [d1, d2, d3]);
// The plugin includes a jQuery plugin for adding resize events to any
// element. Add a callback so we can display the placeholder size.
placeholder.resize(function () {
$(".message").text("Placeholder is now "
+ $(this).width() + "x" + $(this).height()
+ " pixels");
});
$(".demo-container").resizable({
maxWidth: 900,
maxHeight: 500,
minWidth: 450,
minHeight: 250
});
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
});
</script>
</head>
<body>
<div id="header">
<h2>Resizing</h2>
</div>
<div id="content">
<div class="demo-container">
<div id="placeholder" class="demo-placeholder"></div>
</div>
<p class="message"></p>
<p>Sometimes it makes more sense to just let the plot take up the available space. In that case, we need to redraw the plot each time the placeholder changes its size. If you include the resize plugin, this is handled automatically.</p>
<p>Drag the bottom and right sides of the plot to resize it.</p>
</div>
<div id="footer">
Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
</div>
</body>
</html>
<!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: Selection</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 language="javascript" type="text/javascript" src="../../jquery.flot.selection.js"></script>
<script type="text/javascript">
$(function() {
// Shim allowing us to get the state of the check-box on jQuery versions
// prior to 1.6, when prop was added. The reason we don't just use attr
// is because it doesn't work in jQuery versions 1.9.x and later.
// TODO: Remove this once Flot's minimum supported jQuery reaches 1.6.
if (typeof $.fn.prop != 'function') {
$.fn.prop = $.fn.attr;
}
var data = [{
label: "United States",
data: [[1990, 18.9], [1991, 18.7], [1992, 18.4], [1993, 19.3], [1994, 19.5], [1995, 19.3], [1996, 19.4], [1997, 20.2], [1998, 19.8], [1999, 19.9], [2000, 20.4], [2001, 20.1], [2002, 20.0], [2003, 19.8], [2004, 20.4]]
}, {
label: "Russia",
data: [[1992, 13.4], [1993, 12.2], [1994, 10.6], [1995, 10.2], [1996, 10.1], [1997, 9.7], [1998, 9.5], [1999, 9.7], [2000, 9.9], [2001, 9.9], [2002, 9.9], [2003, 10.3], [2004, 10.5]]
}, {
label: "United Kingdom",
data: [[1990, 10.0], [1991, 11.3], [1992, 9.9], [1993, 9.6], [1994, 9.5], [1995, 9.5], [1996, 9.9], [1997, 9.3], [1998, 9.2], [1999, 9.2], [2000, 9.5], [2001, 9.6], [2002, 9.3], [2003, 9.4], [2004, 9.79]]
}, {
label: "Germany",
data: [[1990, 12.4], [1991, 11.2], [1992, 10.8], [1993, 10.5], [1994, 10.4], [1995, 10.2], [1996, 10.5], [1997, 10.2], [1998, 10.1], [1999, 9.6], [2000, 9.7], [2001, 10.0], [2002, 9.7], [2003, 9.8], [2004, 9.79]]
}, {
label: "Denmark",
data: [[1990, 9.7], [1991, 12.1], [1992, 10.3], [1993, 11.3], [1994, 11.7], [1995, 10.6], [1996, 12.8], [1997, 10.8], [1998, 10.3], [1999, 9.4], [2000, 8.7], [2001, 9.0], [2002, 8.9], [2003, 10.1], [2004, 9.80]]
}, {
label: "Sweden",
data: [[1990, 5.8], [1991, 6.0], [1992, 5.9], [1993, 5.5], [1994, 5.7], [1995, 5.3], [1996, 6.1], [1997, 5.4], [1998, 5.4], [1999, 5.1], [2000, 5.2], [2001, 5.4], [2002, 6.2], [2003, 5.9], [2004, 5.89]]
}, {
label: "Norway",
data: [[1990, 8.3], [1991, 8.3], [1992, 7.8], [1993, 8.3], [1994, 8.4], [1995, 5.9], [1996, 6.4], [1997, 6.7], [1998, 6.9], [1999, 7.6], [2000, 7.4], [2001, 8.1], [2002, 12.5], [2003, 9.9], [2004, 19.0]]
}];
var options = {
series: {
lines: {
show: true
},
points: {
show: true
}
},
legend: {
noColumns: 2
},
xaxis: {
tickDecimals: 0
},
yaxis: {
min: 0
},
selection: {
mode: "x"
}
};
var placeholder = $("#placeholder");
placeholder.bind("plotselected", function (event, ranges) {
$("#selection").text(ranges.xaxis.from.toFixed(1) + " to " + ranges.xaxis.to.toFixed(1));
var zoom = $("#zoom").prop("checked");
if (zoom) {
$.each(plot.getXAxes(), function(_, axis) {
var opts = axis.options;
opts.min = ranges.xaxis.from;
opts.max = ranges.xaxis.to;
});
plot.setupGrid();
plot.draw();
plot.clearSelection();
}
});
placeholder.bind("plotunselected", function (event) {
$("#selection").text("");
});
var plot = $.plot(placeholder, data, options);
$("#clearSelection").click(function () {
plot.clearSelection();
});
$("#setSelection").click(function () {
plot.setSelection({
xaxis: {
from: 1994,
to: 1995
}
});
});
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
});
</script>
</head>
<body>
<div id="header">
<h2>Selection</h2>
</div>
<div id="content">
<div class="demo-container">
<div id="placeholder" class="demo-placeholder"></div>
</div>
<p>1000 kg. CO<sub>2</sub> emissions per year per capita for various countries (source: <a href="http://en.wikipedia.org/wiki/List_of_countries_by_carbon_dioxide_emissions_per_capita">Wikipedia</a>).</p>
<p>Flot supports selections through the selection plugin. You can enable rectangular selection or one-dimensional selection if the user should only be able to select on one axis. Try left-click and drag on the plot above where selection on the x axis is enabled.</p>
<p>You selected: <span id="selection"></span></p>
<p>The plot command returns a plot object you can use to control the selection. Click the buttons below.</p>
<p>
<button id="clearSelection">Clear selection</button>
<button id="setSelection">Select year 1994</button>
</p>
<p>Selections are really useful for zooming. Just replot the chart with min and max values for the axes set to the values in the "plotselected" event triggered. Enable the checkbox below and select a region again.</p>
<p><label><input id="zoom" type="checkbox"></input>Zoom to selection.</label></p>
</div>
<div id="footer">
Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
</div>
</body>
</html>
<!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: Error Bars</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 language="javascript" type="text/javascript" src="../../jquery.flot.errorbars.js"></script>
<script language="javascript" type="text/javascript" src="../../jquery.flot.navigate.js"></script>
<script type="text/javascript">
$(function() {
function drawArrow(ctx, x, y, radius){
ctx.beginPath();
ctx.moveTo(x + radius, y + radius);
ctx.lineTo(x, y);
ctx.lineTo(x - radius, y + radius);
ctx.stroke();
}
function drawSemiCircle(ctx, x, y, radius){
ctx.beginPath();
ctx.arc(x, y, radius, 0, Math.PI, false);
ctx.moveTo(x - radius, y);
ctx.lineTo(x + radius, y);
ctx.stroke();
}
var data1 = [
[1,1,.5,.1,.3],
[2,2,.3,.5,.2],
[3,3,.9,.5,.2],
[1.5,-.05,.5,.1,.3],
[3.15,1.,.5,.1,.3],
[2.5,-1.,.5,.1,.3]
];
var data1_points = {
show: true,
radius: 5,
fillColor: "blue",
errorbars: "xy",
xerr: {show: true, asymmetric: true, upperCap: "-", lowerCap: "-"},
yerr: {show: true, color: "red", upperCap: "-"}
};
var data2 = [
[.7,3,.2,.4],
[1.5,2.2,.3,.4],
[2.3,1,.5,.2]
];
var data2_points = {
show: true,
radius: 5,
errorbars: "y",
yerr: {show:true, asymmetric:true, upperCap: drawArrow, lowerCap: drawSemiCircle}
};
var data3 = [
[1,2,.4],
[2,0.5,.3],
[2.7,2,.5]
];
var data3_points = {
//do not show points
radius: 0,
errorbars: "y",
yerr: {show:true, upperCap: "-", lowerCap: "-", radius: 5}
};
var data4 = [
[1.3, 1],
[1.75, 2.5],
[2.5, 0.5]
];
var data4_errors = [0.1, 0.4, 0.2];
for (var i = 0; i < data4.length; i++) {
data4_errors[i] = data4[i].concat(data4_errors[i])
}
var data = [
{color: "blue", points: data1_points, data: data1, label: "data1"},
{color: "red", points: data2_points, data: data2, label: "data2"},
{color: "green", lines: {show: true}, points: data3_points, data: data3, label: "data3"},
// bars with errors
{color: "orange", bars: {show: true, align: "center", barWidth: 0.25}, data: data4, label: "data4"},
{color: "orange", points: data3_points, data: data4_errors}
];
$.plot($("#placeholder"), data , {
legend: {
position: "sw",
show: true
},
series: {
lines: {
show: false
}
},
xaxis: {
min: 0.6,
max: 3.1
},
yaxis: {
min: 0,
max: 3.5
},
zoom: {
interactive: true
},
pan: {
interactive: true
}
});
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
});
</script>
</head>
<body>
<div id="header">
<h2>Error Bars</h2>
</div>
<div id="content">
<div class="demo-container">
<div id="placeholder" class="demo-placeholder"></div>
</div>
<p>With the errorbars plugin you can plot error bars to show standard deviation and other useful statistical properties.</p>
</div>
<div id="footer">
Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
</div>
</body>
</html>
<!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: Pie Charts</title>
<link href="../examples.css" rel="stylesheet" type="text/css">
<style type="text/css">
.demo-container {
position: relative;
height: 400px;
}
#placeholder {
width: 550px;
}
#menu {
position: absolute;
top: 20px;
left: 625px;
bottom: 20px;
right: 20px;
width: 200px;
}
#menu button {
display: inline-block;
width: 200px;
padding: 3px 0 2px 0;
margin-bottom: 4px;
background: #eee;
border: 1px solid #999;
border-radius: 2px;
font-size: 16px;
-o-box-shadow: 0 1px 2px rgba(0,0,0,0.15);
-ms-box-shadow: 0 1px 2px rgba(0,0,0,0.15);
-moz-box-shadow: 0 1px 2px rgba(0,0,0,0.15);
-webkit-box-shadow: 0 1px 2px rgba(0,0,0,0.15);
box-shadow: 0 1px 2px rgba(0,0,0,0.15);
cursor: pointer;
}
#description {
margin: 15px 10px 20px 10px;
}
#code {
display: block;
width: 870px;
padding: 15px;
margin: 10px auto;
border: 1px dashed #999;
background-color: #f8f8f8;
font-size: 16px;
line-height: 20px;
color: #666;
}
ul {
font-size: 10pt;
}
ul li {
margin-bottom: 0.5em;
}
ul.options li {
list-style: none;
margin-bottom: 1em;
}
ul li i {
color: #999;
}
</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.pie.js"></script>
<script type="text/javascript">
$(function() {
// Example Data
//var data = [
// { label: "Series1", data: 10},
// { label: "Series2", data: 30},
// { label: "Series3", data: 90},
// { label: "Series4", data: 70},
// { label: "Series5", data: 80},
// { label: "Series6", data: 110}
//];
//var data = [
// { label: "Series1", data: [[1,10]]},
// { label: "Series2", data: [[1,30]]},
// { label: "Series3", data: [[1,90]]},
// { label: "Series4", data: [[1,70]]},
// { label: "Series5", data: [[1,80]]},
// { label: "Series6", data: [[1,0]]}
//];
//var data = [
// { label: "Series A", data: 0.2063},
// { label: "Series B", data: 38888}
//];
// Randomly Generated Data
var data = [],
series = Math.floor(Math.random() * 6) + 3;
for (var i = 0; i < series; i++) {
data[i] = {
label: "Series" + (i + 1),
data: Math.floor(Math.random() * 100) + 1
}
}
var placeholder = $("#placeholder");
$("#example-1").click(function() {
placeholder.unbind();
$("#title").text("Default pie chart");
$("#description").text("The default pie chart with no options set.");
$.plot(placeholder, data, {
series: {
pie: {
show: true
}
}
});
setCode([
"$.plot('#placeholder', data, {",
" series: {",
" pie: {",
" show: true",
" }",
" }",
"});"
]);
});
$("#example-2").click(function() {
placeholder.unbind();
$("#title").text("Default without legend");
$("#description").text("The default pie chart when the legend is disabled. Since the labels would normally be outside the container, the chart is resized to fit.");
$.plot(placeholder, data, {
series: {
pie: {
show: true
}
},
legend: {
show: false
}
});
setCode([
"$.plot('#placeholder', data, {",
" series: {",
" pie: {",
" show: true",
" }",
" },",
" legend: {",
" show: false",
" }",
"});"
]);
});
$("#example-3").click(function() {
placeholder.unbind();
$("#title").text("Custom Label Formatter");
$("#description").text("Added a semi-transparent background to the labels and a custom labelFormatter function.");
$.plot(placeholder, data, {
series: {
pie: {
show: true,
radius: 1,
label: {
show: true,
radius: 1,
formatter: labelFormatter,
background: {
opacity: 0.8
}
}
}
},
legend: {
show: false
}
});
setCode([
"$.plot('#placeholder', data, {",
" series: {",
" pie: {",
" show: true,",
" radius: 1,",
" label: {",
" show: true,",
" radius: 1,",
" formatter: labelFormatter,",
" background: {",
" opacity: 0.8",
" }",
" }",
" }",
" },",
" legend: {",
" show: false",
" }",
"});"
]);
});
$("#example-4").click(function() {
placeholder.unbind();
$("#title").text("Label Radius");
$("#description").text("Slightly more transparent label backgrounds and adjusted the radius values to place them within the pie.");
$.plot(placeholder, data, {
series: {
pie: {
show: true,
radius: 1,
label: {
show: true,
radius: 3/4,
formatter: labelFormatter,
background: {
opacity: 0.5
}
}
}
},
legend: {
show: false
}
});
setCode([
"$.plot('#placeholder', data, {",
" series: {",
" pie: {",
" show: true,",
" radius: 1,",
" label: {",
" show: true,",
" radius: 3/4,",
" formatter: labelFormatter,",
" background: {",
" opacity: 0.5",
" }",
" }",
" }",
" },",
" legend: {",
" show: false",
" }",
"});"
]);
});
$("#example-5").click(function() {
placeholder.unbind();
$("#title").text("Label Styles #1");
$("#description").text("Semi-transparent, black-colored label background.");
$.plot(placeholder, data, {
series: {
pie: {
show: true,
radius: 1,
label: {
show: true,
radius: 3/4,
formatter: labelFormatter,
background: {
opacity: 0.5,
color: "#000"
}
}
}
},
legend: {
show: false
}
});
setCode([
"$.plot('#placeholder', data, {",
" series: {",
" pie: { ",
" show: true,",
" radius: 1,",
" label: {",
" show: true,",
" radius: 3/4,",
" formatter: labelFormatter,",
" background: { ",
" opacity: 0.5,",
" color: '#000'",
" }",
" }",
" }",
" },",
" legend: {",
" show: false",
" }",
"});"
]);
});
$("#example-6").click(function() {
placeholder.unbind();
$("#title").text("Label Styles #2");
$("#description").text("Semi-transparent, black-colored label background placed at pie edge.");
$.plot(placeholder, data, {
series: {
pie: {
show: true,
radius: 3/4,
label: {
show: true,
radius: 3/4,
formatter: labelFormatter,
background: {
opacity: 0.5,
color: "#000"
}
}
}
},
legend: {
show: false
}
});
setCode([
"$.plot('#placeholder', data, {",
" series: {",
" pie: {",
" show: true,",
" radius: 3/4,",
" label: {",
" show: true,",
" radius: 3/4,",
" formatter: labelFormatter,",
" background: {",
" opacity: 0.5,",
" color: '#000'",
" }",
" }",
" }",
" },",
" legend: {",
" show: false",
" }",
"});"
]);
});
$("#example-7").click(function() {
placeholder.unbind();
$("#title").text("Hidden Labels");
$("#description").text("Labels can be hidden if the slice is less than a given percentage of the pie (10% in this case).");
$.plot(placeholder, data, {
series: {
pie: {
show: true,
radius: 1,
label: {
show: true,
radius: 2/3,
formatter: labelFormatter,
threshold: 0.1
}
}
},
legend: {
show: false
}
});
setCode([
"$.plot('#placeholder', data, {",
" series: {",
" pie: {",
" show: true,",
" radius: 1,",
" label: {",
" show: true,",
" radius: 2/3,",
" formatter: labelFormatter,",
" threshold: 0.1",
" }",
" }",
" },",
" legend: {",
" show: false",
" }",
"});"
]);
});
$("#example-8").click(function() {
placeholder.unbind();
$("#title").text("Combined Slice");
$("#description").text("Multiple slices less than a given percentage (5% in this case) of the pie can be combined into a single, larger slice.");
$.plot(placeholder, data, {
series: {
pie: {
show: true,
combine: {
color: "#999",
threshold: 0.05
}
}
},
legend: {
show: false
}
});
setCode([
"$.plot('#placeholder', data, {",
" series: {",
" pie: {",
" show: true,",
" combine: {",
" color: '#999',",
" threshold: 0.1",
" }",
" }",
" },",
" legend: {",
" show: false",
" }",
"});"
]);
});
$("#example-9").click(function() {
placeholder.unbind();
$("#title").text("Rectangular Pie");
$("#description").text("The radius can also be set to a specific size (even larger than the container itself).");
$.plot(placeholder, data, {
series: {
pie: {
show: true,
radius: 500,
label: {
show: true,
formatter: labelFormatter,
threshold: 0.1
}
}
},
legend: {
show: false
}
});
setCode([
"$.plot('#placeholder', data, {",
" series: {",
" pie: {",
" show: true,",
" radius: 500,",
" label: {",
" show: true,",
" formatter: labelFormatter,",
" threshold: 0.1",
" }",
" }",
" },",
" legend: {",
" show: false",
" }",
"});"
]);
});
$("#example-10").click(function() {
placeholder.unbind();
$("#title").text("Tilted Pie");
$("#description").text("The pie can be tilted at an angle.");
$.plot(placeholder, data, {
series: {
pie: {
show: true,
radius: 1,
tilt: 0.5,
label: {
show: true,
radius: 1,
formatter: labelFormatter,
background: {
opacity: 0.8
}
},
combine: {
color: "#999",
threshold: 0.1
}
}
},
legend: {
show: false
}
});
setCode([
"$.plot('#placeholder', data, {",
" series: {",
" pie: {",
" show: true,",
" radius: 1,",
" tilt: 0.5,",
" label: {",
" show: true,",
" radius: 1,",
" formatter: labelFormatter,",
" background: {",
" opacity: 0.8",
" }",
" },",
" combine: {",
" color: '#999',",
" threshold: 0.1",
" }",
" }",
" },",
" legend: {",
" show: false",
" }",
"});",
]);
});
$("#example-11").click(function() {
placeholder.unbind();
$("#title").text("Donut Hole");
$("#description").text("A donut hole can be added.");
$.plot(placeholder, data, {
series: {
pie: {
innerRadius: 0.5,
show: true
}
}
});
setCode([
"$.plot('#placeholder', data, {",
" series: {",
" pie: {",
" innerRadius: 0.5,",
" show: true",
" }",
" }",
"});"
]);
});
$("#example-12").click(function() {
placeholder.unbind();
$("#title").text("Interactivity");
$("#description").text("The pie can be made interactive with hover and click events.");
$.plot(placeholder, data, {
series: {
pie: {
show: true
}
},
grid: {
hoverable: true,
clickable: true
}
});
setCode([
"$.plot('#placeholder', data, {",
" series: {",
" pie: {",
" show: true",
" }",
" },",
" grid: {",
" hoverable: true,",
" clickable: true",
" }",
"});"
]);
placeholder.bind("plothover", function(event, pos, obj) {
if (!obj) {
return;
}
var percent = parseFloat(obj.series.percent).toFixed(2);
$("#hover").html("<span style='font-weight:bold; color:" + obj.series.color + "'>" + obj.series.label + " (" + percent + "%)</span>");
});
placeholder.bind("plotclick", function(event, pos, obj) {
if (!obj) {
return;
}
percent = parseFloat(obj.series.percent).toFixed(2);
alert("" + obj.series.label + ": " + percent + "%");
});
});
// Show the initial default chart
$("#example-1").click();
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
});
// A custom label formatter used by several of the plots
function labelFormatter(label, series) {
return "<div style='font-size:8pt; text-align:center; padding:2px; color:white;'>" + label + "<br/>" + Math.round(series.percent) + "%</div>";
}
//
function setCode(lines) {
$("#code").text(lines.join("\n"));
}
</script>
</head>
<body>
<div id="header">
<h2>Pie Charts</h2>
</div>
<div id="content">
<h3 id="title"></h3>
<div class="demo-container">
<div id="placeholder" class="demo-placeholder"></div>
<div id="menu">
<button id="example-1">Default Options</button>
<button id="example-2">Without Legend</button>
<button id="example-3">Label Formatter</button>
<button id="example-4">Label Radius</button>
<button id="example-5">Label Styles #1</button>
<button id="example-6">Label Styles #2</button>
<button id="example-7">Hidden Labels</button>
<button id="example-8">Combined Slice</button>
<button id="example-9">Rectangular Pie</button>
<button id="example-10">Tilted Pie</button>
<button id="example-11">Donut Hole</button>
<button id="example-12">Interactivity</button>
</div>
</div>
<p id="description"></p>
<h3>Source Code</h3>
<pre><code id="code"></code></pre>
<br/>
<h2>Pie Options</h2>
<ul class="options">
<li style="border-bottom: 1px dotted #ccc;"><b>option:</b> <i>default value</i> - Description of option</li>
<li><b>show:</b> <i>false</i> - Enable the plugin and draw as a pie.</li>
<li><b>radius:</b> <i>'auto'</i> - Sets the radius of the pie. If value is between 0 and 1 (inclusive) then it will use that as a percentage of the available space (size of the container), otherwise it will use the value as a direct pixel length. If set to 'auto', it will be set to 1 if the legend is enabled and 3/4 if not.</li>
<li><b>innerRadius:</b> <i>0</i> - Sets the radius of the donut hole. If value is between 0 and 1 (inclusive) then it will use that as a percentage of the radius, otherwise it will use the value as a direct pixel length.</li>
<li><b>startAngle:</b> <i>3/2</i> - Factor of PI used for the starting angle (in radians) It can range between 0 and 2 (where 0 and 2 have the same result).</li>
<li><b>tilt:</b> <i>1</i> - Percentage of tilt ranging from 0 and 1, where 1 has no change (fully vertical) and 0 is completely flat (fully horizontal -- in which case nothing actually gets drawn).</li>
<li><b>shadow:</b> <ul>
<li><b>top:</b> <i>5</i> - Vertical distance in pixel of the tilted pie shadow.</li>
<li><b>left:</b> <i>15</i> - Horizontal distance in pixel of the tilted pie shadow.</li>
<li><b>alpha:</b> <i>0.02</i> - Alpha value of the tilted pie shadow.</li>
</ul>
<li><b>offset:</b> <ul>
<li><b>top:</b> <i>0</i> - Pixel distance to move the pie up and down (relative to the center).</li>
<li><b>left:</b> <i>'auto'</i> - Pixel distance to move the pie left and right (relative to the center).</li>
</ul>
<li><b>stroke:</b> <ul>
<li><b>color:</b> <i>'#FFF'</i> - Color of the border of each slice. Hexadecimal color definitions are prefered (other formats may or may not work).</li>
<li><b>width:</b> <i>1</i> - Pixel width of the border of each slice.</li>
</ul>
<li><b>label:</b> <ul>
<li><b>show:</b> <i>'auto'</i> - Enable/Disable the labels. This can be set to true, false, or 'auto'. When set to 'auto', it will be set to false if the legend is enabled and true if not.</li>
<li><b>radius:</b> <i>1</i> - Sets the radius at which to place the labels. If value is between 0 and 1 (inclusive) then it will use that as a percentage of the available space (size of the container), otherwise it will use the value as a direct pixel length.</li>
<li><b>threshold:</b> <i>0</i> - Hides the labels of any pie slice that is smaller than the specified percentage (ranging from 0 to 1) i.e. a value of '0.03' will hide all slices 3% or less of the total.</li>
<li><b>formatter:</b> <i>[function]</i> - This function specifies how the positioned labels should be formatted, and is applied after the legend's labelFormatter function. The labels can also still be styled using the class "pieLabel" (i.e. ".pieLabel" or "#graph1 .pieLabel").</li>
<li><b>radius:</b> <i>1</i> - Sets the radius at which to place the labels. If value is between 0 and 1 (inclusive) then it will use that as a percentage of the available space (size of the container), otherwise it will use the value as a direct pixel length.</li>
<li><b>background:</b> <ul>
<li><b>color:</b> <i>null</i> - Backgound color of the positioned labels. If null, the plugin will automatically use the color of the slice.</li>
<li><b>opacity:</b> <i>0</i> - Opacity of the background for the positioned labels. Acceptable values range from 0 to 1, where 0 is completely transparent and 1 is completely opaque.</li>
</ul>
</ul>
<li><b>combine:</b> <ul>
<li><b>threshold:</b> <i>0</i> - Combines all slices that are smaller than the specified percentage (ranging from 0 to 1) i.e. a value of '0.03' will combine all slices 3% or less into one slice).</li>
<li><b>color:</b> <i>null</i> - Backgound color of the positioned labels. If null, the plugin will automatically use the color of the first slice to be combined.</li>
<li><b>label:</b> <i>'Other'</i> - Label text for the combined slice.</li>
</ul>
<li><b>highlight:</b> <ul>
<li><b>opacity:</b> <i>0.5</i> - Opacity of the highlight overlay on top of the current pie slice. Currently this just uses a white overlay, but support for changing the color of the overlay will also be added at a later date.
</ul>
</ul>
<h2>Changes/Features</h2>
<ul>
<li style="list-style: none;"><i>v1.0 - November 20th, 2009 - Brian Medendorp</i></li>
<li>The pie plug-in is now part of the Flot repository! This should make it a lot easier to deal with.</li>
<li>Added a new option (innerRadius) to add a "donut hole" to the center of the pie, based on comtributions from Anthony Aragues. I was a little reluctant to add this feature because it doesn't work very well with the shadow created for the tilted pie, but figured it was worthwhile for non-tilted pies. Also, excanvas apparently doesn't support compositing, so it will fall back to using the stroke color to fill in the center (but I recommend setting the stroke color to the background color anyway).</li>
<li>Changed the lineJoin for the border of the pie slices to use the 'round' option. This should make the center of the pie look better, particularly when there are numerous thin slices.</li>
<li>Included a bug fix submitted by btburnett3 to display a slightly smaller slice in the event that the slice is 100% and being rendered with Internet Explorer. I haven't experienced this bug myself, but it doesn't seem to hurt anything so I've included it.</li>
<li>The tilt value is now used when calculating the maximum radius of the pie in relation to the height of the container. This should prevent the pie from being smaller than it needed to in some cases, as well as reducing the amount of extra white space generated above and below the pie.</li>
<li><b>Hover and Click functionality are now availabe!</b><ul>
<li>Thanks to btburnett3 for the original hover functionality and Anthony Aragues for the modification that makes it compatable with excanvas, this was a huge help!</li>
<li>Added a new option (highlight opacity) to modify the highlight created when mousing over a slice. Currently this just uses a white overlay, but an option to change the hightlight color will be added when the appropriate functionality becomes available.
<li>I had a major setback that required me to practically rebuild the hover/click events from scratch one piece at a time (I discovered that it only worked with a single pie on a page at a time), but the end result ended up being virtually identical to the original, so I'm not quite sure what exactly made it work.</li>
<li><span style="color: red;">Warning:</span> There are some minor issues with using this functionality in conjuction with some of the other more advanced features (tilt and donut). When using a donut hole, the inner portion still triggers the events even though that portion of the pie is no longer visible. When tilted, the interactive portions still use the original, untilted version of the pie when determining mouse position (this is because the isPointInPath function apparently doesn't work with transformations), however hover and click both work this way, so the appropriate slice is still highlighted when clicking, and it isn't as noticable of a problem.</li>
</ul></li>
<li>Included a bug fix submitted by Xavi Ivars to fix array issues when other javascript libraries are included in addition to jQuery</li>
<br/>
<li style="list-style: none;"><i>v0.4 - July 1st, 2009 - Brian Medendorp</i></li>
<li>Each series will now be shown in the legend, even if it's value is zero. The series will not get a positioned label because it will overlap with the other labels present and often makes them unreadable.</li>
<li>Data can now be passed in using the standard Flot method using an array of datapoints, the pie plugin will simply use the first y-value that it finds for each series in this case. The plugin uses this datastructure internally, but you can still use the old method of passing in a single numerical value for each series (the plugin will convert it as necessary). This should make it easier to transition from other types of graphs (such as a stacked bar graph) to a pie.</li>
<li>The pie can now be tilted at an angle with a new "tilt" option. Acceptable values range from 0-1, where 1 has no change (fully vertical) and 0 is completely flat (fully horizontal -- in which case nothing actually gets drawn). If the plugin determines that it will fit within the canvas, a drop shadow will be drawn under the tilted pie (this also requires a tilt value of 0.8 or less).</li>
<br/>
<li style="list-style: none;"><i>v0.3.2 - June 25th, 2009 - Brian Medendorp</i></li>
<li>Fixed a bug that was causing the pie to be shifted too far left or right when the legend is showing in some cases.</li>
<br/>
<li style="list-style: none;"><i>v0.3.1 - June 24th, 2009 - Brian Medendorp</i></li>
<li>Fixed a bug that was causing nothing to be drawn and generating a javascript error if any of the data values were set to zero.</li>
<br/>
<li style="list-style: none;"><i>v0.3 - June 23rd, 2009 - Brian Medendorp</i></li>
<li>The legend now works without any modifications! Because of changes made to flot and the plugin system (thanks Ole Laursen!) I was able to simplify a number of things and am now able to use the legend without the direct access hack that was required in the previous version.</li>
<br/>
<li style="list-style: none;"><i>v0.2 - June 22nd, 2009 - Brian Medendorp</i></li>
<li>The legend now works but only if you make the necessary changes to jquery.flot.js. Because of this, I changed the default values for pie.radius and pie.label.show to new 'auto' settings that change the default behavior of the size and labels depending on whether the legend functionality is available or not.</li>
<br/>
<li style="list-style: none;"><i>v0.1 - June 18th, 2009 - Brian Medendorp</i></li>
<li>Rewrote the entire pie code into a flot plugin (since that is now an option), so it should be much easier to use and the code is cleaned up a bit. However, the (standard flot) legend is no longer available because the only way to prevent the grid lines from being displayed also prevents the legend from being displayed. Hopefully this can be fixed at a later date.</li>
<li>Restructured and combined some of the options. It should be much easier to deal with now.</li>
<li>Added the ability to change the starting point of the pie (still defaults to the top).</li>
<li>Modified the default options to show the labels to compensate for the lack of a legend.</li>
<li>Modified this page to use a random dataset. <span style="color: red">Note: you may need to refresh the page to see the effects of some of the examples.</span></li>
<br/>
<li style="list-style: none;"><i>May 21st, 2009 - Brian Medendorp</i></li>
<li>Merged original pie modifications by Sergey Nosenko into the latest SVN version <i>(as of May 15th, 2009)</i> so that it will work with ie8.</li>
<li>Pie graph will now be centered in the canvas unless moved because of the legend or manually via the options. Additionally it prevents the pie from being moved beyond the edge of the canvas.</li>
<li>Modified the code related to the labelFormatter option to apply flot's legend labelFormatter first. This is so that the labels will be consistent, but still provide extra formatting for the positioned labels (such as adding the percentage value).</li>
<li>Positioned labels now have their backgrounds applied as a seperate element (much like the legend background) so that the opacity value can be set independently from the label itself (foreground). Additionally, the background color defaults to that of the matching slice.</li>
<li>As long as the labelOffset and radiusLimit are not set to hard values, the pie will be shrunk if the labels will extend outside the edge of the canvas</li>
<li>Added new options "radiusLimitFactor" and "radiusLimit" which limits how large the (visual) radius of the pie is in relation to the full radius (as calculated from the canvas dimensions) or a hard-pixel value (respectively). This allows for pushing the labels "outside" the pie.</li>
<li>Added a new option "labelHidePercent" that does not show the positioned labels of slices smaller than the specified percentage. This is to help prevent a bunch of overlapping labels from small slices.</li>
<li>Added a new option "sliceCombinePercent" that combines all slices smaller than the specified percentage into one larger slice. This is to help make the pie more attractive when there are a number of tiny slices. The options "sliceCombineColor" and "sliceCombineLabel" have also been added to change the color and name of the new slice if desired.</li>
<li>Tested in Firefox (3.0.10, 3.5b4), Internet Explorer (6.0.2900, 7.0.5730, 8.0.6001), Chrome (1.0.154), Opera (9.64), and Safari (3.1.1, 4 beta 5528.16).
</ul>
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Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
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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: Toggling Series</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() {
var datasets = {
"usa": {
label: "USA",
data: [[1988, 483994], [1989, 479060], [1990, 457648], [1991, 401949], [1992, 424705], [1993, 402375], [1994, 377867], [1995, 357382], [1996, 337946], [1997, 336185], [1998, 328611], [1999, 329421], [2000, 342172], [2001, 344932], [2002, 387303], [2003, 440813], [2004, 480451], [2005, 504638], [2006, 528692]]
},
"russia": {
label: "Russia",
data: [[1988, 218000], [1989, 203000], [1990, 171000], [1992, 42500], [1993, 37600], [1994, 36600], [1995, 21700], [1996, 19200], [1997, 21300], [1998, 13600], [1999, 14000], [2000, 19100], [2001, 21300], [2002, 23600], [2003, 25100], [2004, 26100], [2005, 31100], [2006, 34700]]
},
"uk": {
label: "UK",
data: [[1988, 62982], [1989, 62027], [1990, 60696], [1991, 62348], [1992, 58560], [1993, 56393], [1994, 54579], [1995, 50818], [1996, 50554], [1997, 48276], [1998, 47691], [1999, 47529], [2000, 47778], [2001, 48760], [2002, 50949], [2003, 57452], [2004, 60234], [2005, 60076], [2006, 59213]]
},
"germany": {
label: "Germany",
data: [[1988, 55627], [1989, 55475], [1990, 58464], [1991, 55134], [1992, 52436], [1993, 47139], [1994, 43962], [1995, 43238], [1996, 42395], [1997, 40854], [1998, 40993], [1999, 41822], [2000, 41147], [2001, 40474], [2002, 40604], [2003, 40044], [2004, 38816], [2005, 38060], [2006, 36984]]
},
"denmark": {
label: "Denmark",
data: [[1988, 3813], [1989, 3719], [1990, 3722], [1991, 3789], [1992, 3720], [1993, 3730], [1994, 3636], [1995, 3598], [1996, 3610], [1997, 3655], [1998, 3695], [1999, 3673], [2000, 3553], [2001, 3774], [2002, 3728], [2003, 3618], [2004, 3638], [2005, 3467], [2006, 3770]]
},
"sweden": {
label: "Sweden",
data: [[1988, 6402], [1989, 6474], [1990, 6605], [1991, 6209], [1992, 6035], [1993, 6020], [1994, 6000], [1995, 6018], [1996, 3958], [1997, 5780], [1998, 5954], [1999, 6178], [2000, 6411], [2001, 5993], [2002, 5833], [2003, 5791], [2004, 5450], [2005, 5521], [2006, 5271]]
},
"norway": {
label: "Norway",
data: [[1988, 4382], [1989, 4498], [1990, 4535], [1991, 4398], [1992, 4766], [1993, 4441], [1994, 4670], [1995, 4217], [1996, 4275], [1997, 4203], [1998, 4482], [1999, 4506], [2000, 4358], [2001, 4385], [2002, 5269], [2003, 5066], [2004, 5194], [2005, 4887], [2006, 4891]]
}
};
// hard-code color indices to prevent them from shifting as
// countries are turned on/off
var i = 0;
$.each(datasets, function(key, val) {
val.color = i;
++i;
});
// insert checkboxes
var choiceContainer = $("#choices");
$.each(datasets, function(key, val) {
choiceContainer.append("<br/><input type='checkbox' name='" + key +
"' checked='checked' id='id" + key + "'></input>" +
"<label for='id" + key + "'>"
+ val.label + "</label>");
});
choiceContainer.find("input").click(plotAccordingToChoices);
function plotAccordingToChoices() {
var data = [];
choiceContainer.find("input:checked").each(function () {
var key = $(this).attr("name");
if (key && datasets[key]) {
data.push(datasets[key]);
}
});
if (data.length > 0) {
$.plot("#placeholder", data, {
yaxis: {
min: 0
},
xaxis: {
tickDecimals: 0
}
});
}
}
plotAccordingToChoices();
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
});
</script>
</head>
<body>
<div id="header">
<h2>Toggling Series</h2>
</div>
<div id="content">
<div class="demo-container">
<div id="placeholder" class="demo-placeholder" style="float:left; width:675px;"></div>
<p id="choices" style="float:right; width:135px;"></p>
</div>
<p>This example shows military budgets for various countries in constant (2005) million US dollars (source: <a href="http://www.sipri.org/">SIPRI</a>).</p>
<p>Since all data is available client-side, it's pretty easy to make the plot interactive. Try turning countries on and off with the checkboxes next to the plot.</p>
</div>
<div id="footer">
Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
</div>
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</html>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Flot Examples: Series Types</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() {
var d1 = [];
for (var i = 0; i < 14; i += 0.5) {
d1.push([i, Math.sin(i)]);
}
var d2 = [[0, 3], [4, 8], [8, 5], [9, 13]];
var d3 = [];
for (var i = 0; i < 14; i += 0.5) {
d3.push([i, Math.cos(i)]);
}
var d4 = [];
for (var i = 0; i < 14; i += 0.1) {
d4.push([i, Math.sqrt(i * 10)]);
}
var d5 = [];
for (var i = 0; i < 14; i += 0.5) {
d5.push([i, Math.sqrt(i)]);
}
var d6 = [];
for (var i = 0; i < 14; i += 0.5 + Math.random()) {
d6.push([i, Math.sqrt(2*i + Math.sin(i) + 5)]);
}
$.plot("#placeholder", [{
data: d1,
lines: { show: true, fill: true }
}, {
data: d2,
bars: { show: true }
}, {
data: d3,
points: { show: true }
}, {
data: d4,
lines: { show: true }
}, {
data: d5,
lines: { show: true },
points: { show: true }
}, {
data: d6,
lines: { show: true, steps: true }
}]);
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
});
</script>
</head>
<body>
<div id="header">
<h2>Series Types</h2>
</div>
<div id="content">
<div class="demo-container">
<div id="placeholder" class="demo-placeholder"></div>
</div>
<p>Flot supports lines, points, filled areas, bars and any combinations of these, in the same plot and even on the same data series.</p>
</div>
<div id="footer">
Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
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* Includes: jquery.ui.core.css, jquery.ui.resizable.css
* Copyright (c) 2013 jQuery Foundation and other contributors Licensed MIT */
.ui-helper-hidden{display:none}.ui-helper-hidden-accessible{border:0;clip:rect(0 0 0 0);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}.ui-helper-reset{margin:0;padding:0;border:0;outline:0;line-height:1.3;text-decoration:none;font-size:100%;list-style:none}.ui-helper-clearfix:before,.ui-helper-clearfix:after{content:"";display:table}.ui-helper-clearfix:after{clear:both}.ui-helper-clearfix{min-height:0}.ui-helper-zfix{width:100%;height:100%;top:0;left:0;position:absolute;opacity:0;filter:Alpha(Opacity=0)}.ui-front{z-index:100}.ui-state-disabled{cursor:default!important}.ui-icon{display:block;text-indent:-99999px;overflow:hidden;background-repeat:no-repeat}.ui-widget-overlay{position:fixed;top:0;left:0;width:100%;height:100%}.ui-resizable{position:relative}.ui-resizable-handle{position:absolute;font-size:0.1px;display:block}.ui-resizable-disabled .ui-resizable-handle,.ui-resizable-autohide .ui-resizable-handle{display:none}.ui-resizable-n{cursor:n-resize;height:7px;width:100%;top:-5px;left:0}.ui-resizable-s{cursor:s-resize;height:7px;width:100%;bottom:-5px;left:0}.ui-resizable-e{cursor:e-resize;width:7px;right:-5px;top:0;height:100%}.ui-resizable-w{cursor:w-resize;width:7px;left:-5px;top:0;height:100%}.ui-resizable-se{cursor:se-resize;width:12px;height:12px;right:1px;bottom:1px}.ui-resizable-sw{cursor:sw-resize;width:9px;height:9px;left:-5px;bottom:-5px}.ui-resizable-nw{cursor:nw-resize;width:9px;height:9px;left:-5px;top:-5px}.ui-resizable-ne{cursor:ne-resize;width:9px;height:9px;right:-5px;top:-5px}
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Flot Examples: Stacking</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 language="javascript" type="text/javascript" src="../../jquery.flot.stack.js"></script>
<script type="text/javascript">
$(function() {
var d1 = [];
for (var i = 0; i <= 10; i += 1) {
d1.push([i, parseInt(Math.random() * 30)]);
}
var d2 = [];
for (var i = 0; i <= 10; i += 1) {
d2.push([i, parseInt(Math.random() * 30)]);
}
var d3 = [];
for (var i = 0; i <= 10; i += 1) {
d3.push([i, parseInt(Math.random() * 30)]);
}
var stack = 0,
bars = true,
lines = false,
steps = false;
function plotWithOptions() {
$.plot("#placeholder", [ d1, d2, d3 ], {
series: {
stack: stack,
lines: {
show: lines,
fill: true,
steps: steps
},
bars: {
show: bars,
barWidth: 0.6
}
}
});
}
plotWithOptions();
$(".stackControls button").click(function (e) {
e.preventDefault();
stack = $(this).text() == "With stacking" ? true : null;
plotWithOptions();
});
$(".graphControls button").click(function (e) {
e.preventDefault();
bars = $(this).text().indexOf("Bars") != -1;
lines = $(this).text().indexOf("Lines") != -1;
steps = $(this).text().indexOf("steps") != -1;
plotWithOptions();
});
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
});
</script>
</head>
<body>
<div id="header">
<h2>Stacking</h2>
</div>
<div id="content">
<div class="demo-container">
<div id="placeholder" class="demo-placeholder"></div>
</div>
<p>With the stack plugin, you can have Flot stack the series. This is useful if you wish to display both a total and the constituents it is made of. The only requirement is that you provide the input sorted on x.</p>
<p class="stackControls">
<button>With stacking</button>
<button>Without stacking</button>
</p>
<p class="graphControls">
<button>Bars</button>
<button>Lines</button>
<button>Lines with steps</button>
</p>
</div>
<div id="footer">
Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Flot Examples: Symbols</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 language="javascript" type="text/javascript" src="../../jquery.flot.symbol.js"></script>
<script type="text/javascript">
$(function() {
function generate(offset, amplitude) {
var res = [];
var start = 0, end = 10;
for (var i = 0; i <= 50; ++i) {
var x = start + i / 50 * (end - start);
res.push([x, amplitude * Math.sin(x + offset)]);
}
return res;
}
var data = [
{ data: generate(2, 1.8), points: { symbol: "circle" } },
{ data: generate(3, 1.5), points: { symbol: "square" } },
{ data: generate(4, 0.9), points: { symbol: "diamond" } },
{ data: generate(6, 1.4), points: { symbol: "triangle" } },
{ data: generate(7, 1.1), points: { symbol: "cross" } }
];
$.plot("#placeholder", data, {
series: {
points: {
show: true,
radius: 3
}
},
grid: {
hoverable: true
}
});
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
});
</script>
</head>
<body>
<div id="header">
<h2>Symbols</h2>
</div>
<div id="content">
<div class="demo-container">
<div id="placeholder" class="demo-placeholder"></div>
</div>
<p>Points can be marked in several ways, with circles being the built-in default. For other point types, you can define a callback function to draw the symbol. Some common symbols are available in the symbol plugin.</p>
</div>
<div id="footer">
Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
</div>
</body>
</html>
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Flot Examples: Thresholds</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 language="javascript" type="text/javascript" src="../../jquery.flot.threshold.js"></script>
<script type="text/javascript">
$(function() {
var d1 = [];
for (var i = 0; i <= 60; i += 1) {
d1.push([i, parseInt(Math.random() * 30 - 10)]);
}
function plotWithOptions(t) {
$.plot("#placeholder", [{
data: d1,
color: "rgb(30, 180, 20)",
threshold: {
below: t,
color: "rgb(200, 20, 30)"
},
lines: {
steps: true
}
}]);
}
plotWithOptions(0);
$(".controls button").click(function (e) {
e.preventDefault();
var t = parseFloat($(this).text().replace("Threshold at ", ""));
plotWithOptions(t);
});
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
});
</script>
</head>
<body>
<div id="header">
<h2>Thresholds</h2>
</div>
<div id="content">
<div class="demo-container">
<div id="placeholder" class="demo-placeholder"></div>
</div>
<p>With the threshold plugin, you can apply a specific color to the part of a data series below a threshold. This is can be useful for highlighting negative values, e.g. when displaying net results or what's in stock.</p>
<p class="controls">
<button>Threshold at 5</button>
<button>Threshold at 0</button>
<button>Threshold at -2.5</button>
</p>
</div>
<div id="footer">
Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
</div>
</body>
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<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">
<!--[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.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" }
], {
series: {
lines: {
show: true
}
},
crosshair: {
mode: "x"
},
grid: {
hoverable: true,
autoHighlight: false
},
yaxis: {
min: -1.2,
max: 1.2
}
});
var legends = $("#placeholder .legendLabel");
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);
}
});
// 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>
<!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: Visitors</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 language="javascript" type="text/javascript" src="../../jquery.flot.time.js"></script>
<script language="javascript" type="text/javascript" src="../../jquery.flot.selection.js"></script>
<script type="text/javascript">
$(function() {
var d = [[1196463600000, 0], [1196550000000, 0], [1196636400000, 0], [1196722800000, 77], [1196809200000, 3636], [1196895600000, 3575], [1196982000000, 2736], [1197068400000, 1086], [1197154800000, 676], [1197241200000, 1205], [1197327600000, 906], [1197414000000, 710], [1197500400000, 639], [1197586800000, 540], [1197673200000, 435], [1197759600000, 301], [1197846000000, 575], [1197932400000, 481], [1198018800000, 591], [1198105200000, 608], [1198191600000, 459], [1198278000000, 234], [1198364400000, 1352], [1198450800000, 686], [1198537200000, 279], [1198623600000, 449], [1198710000000, 468], [1198796400000, 392], [1198882800000, 282], [1198969200000, 208], [1199055600000, 229], [1199142000000, 177], [1199228400000, 374], [1199314800000, 436], [1199401200000, 404], [1199487600000, 253], [1199574000000, 218], [1199660400000, 476], [1199746800000, 462], [1199833200000, 448], [1199919600000, 442], [1200006000000, 403], [1200092400000, 204], [1200178800000, 194], [1200265200000, 327], [1200351600000, 374], [1200438000000, 507], [1200524400000, 546], [1200610800000, 482], [1200697200000, 283], [1200783600000, 221], [1200870000000, 483], [1200956400000, 523], [1201042800000, 528], [1201129200000, 483], [1201215600000, 452], [1201302000000, 270], [1201388400000, 222], [1201474800000, 439], [1201561200000, 559], [1201647600000, 521], [1201734000000, 477], [1201820400000, 442], [1201906800000, 252], [1201993200000, 236], [1202079600000, 525], [1202166000000, 477], [1202252400000, 386], [1202338800000, 409], [1202425200000, 408], [1202511600000, 237], [1202598000000, 193], [1202684400000, 357], [1202770800000, 414], [1202857200000, 393], [1202943600000, 353], [1203030000000, 364], [1203116400000, 215], [1203202800000, 214], [1203289200000, 356], [1203375600000, 399], [1203462000000, 334], [1203548400000, 348], [1203634800000, 243], [1203721200000, 126], [1203807600000, 157], [1203894000000, 288]];
// first correct the timestamps - they are recorded as the daily
// midnights in UTC+0100, but Flot always displays dates in UTC
// so we have to add one hour to hit the midnights in the plot
for (var i = 0; i < d.length; ++i) {
d[i][0] += 60 * 60 * 1000;
}
// helper for returning the weekends in a period
function weekendAreas(axes) {
var markings = [],
d = new Date(axes.xaxis.min);
// go to the first Saturday
d.setUTCDate(d.getUTCDate() - ((d.getUTCDay() + 1) % 7))
d.setUTCSeconds(0);
d.setUTCMinutes(0);
d.setUTCHours(0);
var i = d.getTime();
// when we don't set yaxis, the rectangle automatically
// extends to infinity upwards and downwards
do {
markings.push({ xaxis: { from: i, to: i + 2 * 24 * 60 * 60 * 1000 } });
i += 7 * 24 * 60 * 60 * 1000;
} while (i < axes.xaxis.max);
return markings;
}
var options = {
xaxis: {
mode: "time",
tickLength: 5
},
selection: {
mode: "x"
},
grid: {
markings: weekendAreas
}
};
var plot = $.plot("#placeholder", [d], options);
var overview = $.plot("#overview", [d], {
series: {
lines: {
show: true,
lineWidth: 1
},
shadowSize: 0
},
xaxis: {
ticks: [],
mode: "time"
},
yaxis: {
ticks: [],
min: 0,
autoscaleMargin: 0.1
},
selection: {
mode: "x"
}
});
// now connect the two
$("#placeholder").bind("plotselected", function (event, ranges) {
// do the zooming
$.each(plot.getXAxes(), function(_, axis) {
var opts = axis.options;
opts.min = ranges.xaxis.from;
opts.max = ranges.xaxis.to;
});
plot.setupGrid();
plot.draw();
plot.clearSelection();
// don't fire event on the overview to prevent eternal loop
overview.setSelection(ranges, true);
});
$("#overview").bind("plotselected", function (event, ranges) {
plot.setSelection(ranges);
});
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
});
</script>
</head>
<body>
<div id="header">
<h2>Visitors</h2>
</div>
<div id="content">
<div class="demo-container">
<div id="placeholder" class="demo-placeholder"></div>
</div>
<div class="demo-container" style="height:150px;">
<div id="overview" class="demo-placeholder"></div>
</div>
<p>This plot shows visitors per day to the Flot homepage, with weekends colored.</p>
<p>The smaller plot is linked to the main plot, so it acts as an overview. Try dragging a selection on either plot, and watch the behavior of the other.</p>
</div>
<div id="footer">
Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
</div>
</body>
</html>
<!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: Selection and zooming</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 language="javascript" type="text/javascript" src="../../jquery.flot.selection.js"></script>
<script type="text/javascript">
$(function() {
// setup plot
function getData(x1, x2) {
var d = [];
for (var i = 0; i <= 100; ++i) {
var x = x1 + i * (x2 - x1) / 100;
d.push([x, Math.sin(x * Math.sin(x))]);
}
return [
{ label: "sin(x sin(x))", data: d }
];
}
var options = {
legend: {
show: false
},
series: {
lines: {
show: true
},
points: {
show: true
}
},
yaxis: {
ticks: 10
},
selection: {
mode: "xy"
}
};
var startData = getData(0, 3 * Math.PI);
var plot = $.plot("#placeholder", startData, options);
// Create the overview plot
var overview = $.plot("#overview", startData, {
legend: {
show: false
},
series: {
lines: {
show: true,
lineWidth: 1
},
shadowSize: 0
},
xaxis: {
ticks: 4
},
yaxis: {
ticks: 3,
min: -2,
max: 2
},
grid: {
color: "#999"
},
selection: {
mode: "xy"
}
});
// now connect the two
$("#placeholder").bind("plotselected", function (event, ranges) {
// clamp the zooming to prevent eternal zoom
if (ranges.xaxis.to - ranges.xaxis.from < 0.00001) {
ranges.xaxis.to = ranges.xaxis.from + 0.00001;
}
if (ranges.yaxis.to - ranges.yaxis.from < 0.00001) {
ranges.yaxis.to = ranges.yaxis.from + 0.00001;
}
// do the zooming
plot = $.plot("#placeholder", getData(ranges.xaxis.from, ranges.xaxis.to),
$.extend(true, {}, options, {
xaxis: { min: ranges.xaxis.from, max: ranges.xaxis.to },
yaxis: { min: ranges.yaxis.from, max: ranges.yaxis.to }
})
);
// don't fire event on the overview to prevent eternal loop
overview.setSelection(ranges, true);
});
$("#overview").bind("plotselected", function (event, ranges) {
plot.setSelection(ranges);
});
// Add the Flot version string to the footer
$("#footer").prepend("Flot " + $.plot.version + " &ndash; ");
});
</script>
</head>
<body>
<div id="header">
<h2>Selection and zooming</h2>
</div>
<div id="content">
<div class="demo-container">
<div id="placeholder" class="demo-placeholder" style="float:left; width:650px;"></div>
<div id="overview" class="demo-placeholder" style="float:right;width:160px; height:125px;"></div>
</div>
<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>
</div>
<div id="footer">
Copyright &copy; 2007 - 2014 IOLA and Ole Laursen
</div>
</body>
</html>
// Copyright 2006 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Known Issues:
//
// * Patterns only support repeat.
// * Radial gradient are not implemented. The VML version of these look very
// different from the canvas one.
// * Clipping paths are not implemented.
// * Coordsize. The width and height attribute have higher priority than the
// width and height style values which isn't correct.
// * Painting mode isn't implemented.
// * Canvas width/height should is using content-box by default. IE in
// Quirks mode will draw the canvas using border-box. Either change your
// doctype to HTML5
// (http://www.whatwg.org/specs/web-apps/current-work/#the-doctype)
// or use Box Sizing Behavior from WebFX
// (http://webfx.eae.net/dhtml/boxsizing/boxsizing.html)
// * Non uniform scaling does not correctly scale strokes.
// * Filling very large shapes (above 5000 points) is buggy.
// * Optimize. There is always room for speed improvements.
// Only add this code if we do not already have a canvas implementation
if (!document.createElement('canvas').getContext) {
(function() {
// alias some functions to make (compiled) code shorter
var m = Math;
var mr = m.round;
var ms = m.sin;
var mc = m.cos;
var abs = m.abs;
var sqrt = m.sqrt;
// this is used for sub pixel precision
var Z = 10;
var Z2 = Z / 2;
var IE_VERSION = +navigator.userAgent.match(/MSIE ([\d.]+)?/)[1];
/**
* This funtion is assigned to the <canvas> elements as element.getContext().
* @this {HTMLElement}
* @return {CanvasRenderingContext2D_}
*/
function getContext() {
return this.context_ ||
(this.context_ = new CanvasRenderingContext2D_(this));
}
var slice = Array.prototype.slice;
/**
* Binds a function to an object. The returned function will always use the
* passed in {@code obj} as {@code this}.
*
* Example:
*
* g = bind(f, obj, a, b)
* g(c, d) // will do f.call(obj, a, b, c, d)
*
* @param {Function} f The function to bind the object to
* @param {Object} obj The object that should act as this when the function
* is called
* @param {*} var_args Rest arguments that will be used as the initial
* arguments when the function is called
* @return {Function} A new function that has bound this
*/
function bind(f, obj, var_args) {
var a = slice.call(arguments, 2);
return function() {
return f.apply(obj, a.concat(slice.call(arguments)));
};
}
function encodeHtmlAttribute(s) {
return String(s).replace(/&/g, '&amp;').replace(/"/g, '&quot;');
}
function addNamespace(doc, prefix, urn) {
if (!doc.namespaces[prefix]) {
doc.namespaces.add(prefix, urn, '#default#VML');
}
}
function addNamespacesAndStylesheet(doc) {
addNamespace(doc, 'g_vml_', 'urn:schemas-microsoft-com:vml');
addNamespace(doc, 'g_o_', 'urn:schemas-microsoft-com:office:office');
// Setup default CSS. Only add one style sheet per document
if (!doc.styleSheets['ex_canvas_']) {
var ss = doc.createStyleSheet();
ss.owningElement.id = 'ex_canvas_';
ss.cssText = 'canvas{display:inline-block;overflow:hidden;' +
// default size is 300x150 in Gecko and Opera
'text-align:left;width:300px;height:150px}';
}
}
// Add namespaces and stylesheet at startup.
addNamespacesAndStylesheet(document);
var G_vmlCanvasManager_ = {
init: function(opt_doc) {
var doc = opt_doc || document;
// Create a dummy element so that IE will allow canvas elements to be
// recognized.
doc.createElement('canvas');
doc.attachEvent('onreadystatechange', bind(this.init_, this, doc));
},
init_: function(doc) {
// find all canvas elements
var els = doc.getElementsByTagName('canvas');
for (var i = 0; i < els.length; i++) {
this.initElement(els[i]);
}
},
/**
* Public initializes a canvas element so that it can be used as canvas
* element from now on. This is called automatically before the page is
* loaded but if you are creating elements using createElement you need to
* make sure this is called on the element.
* @param {HTMLElement} el The canvas element to initialize.
* @return {HTMLElement} the element that was created.
*/
initElement: function(el) {
if (!el.getContext) {
el.getContext = getContext;
// Add namespaces and stylesheet to document of the element.
addNamespacesAndStylesheet(el.ownerDocument);
// Remove fallback content. There is no way to hide text nodes so we
// just remove all childNodes. We could hide all elements and remove
// text nodes but who really cares about the fallback content.
el.innerHTML = '';
// do not use inline function because that will leak memory
el.attachEvent('onpropertychange', onPropertyChange);
el.attachEvent('onresize', onResize);
var attrs = el.attributes;
if (attrs.width && attrs.width.specified) {
// TODO: use runtimeStyle and coordsize
// el.getContext().setWidth_(attrs.width.nodeValue);
el.style.width = attrs.width.nodeValue + 'px';
} else {
el.width = el.clientWidth;
}
if (attrs.height && attrs.height.specified) {
// TODO: use runtimeStyle and coordsize
// el.getContext().setHeight_(attrs.height.nodeValue);
el.style.height = attrs.height.nodeValue + 'px';
} else {
el.height = el.clientHeight;
}
//el.getContext().setCoordsize_()
}
return el;
}
};
function onPropertyChange(e) {
var el = e.srcElement;
switch (e.propertyName) {
case 'width':
el.getContext().clearRect();
el.style.width = el.attributes.width.nodeValue + 'px';
// In IE8 this does not trigger onresize.
el.firstChild.style.width = el.clientWidth + 'px';
break;
case 'height':
el.getContext().clearRect();
el.style.height = el.attributes.height.nodeValue + 'px';
el.firstChild.style.height = el.clientHeight + 'px';
break;
}
}
function onResize(e) {
var el = e.srcElement;
if (el.firstChild) {
el.firstChild.style.width = el.clientWidth + 'px';
el.firstChild.style.height = el.clientHeight + 'px';
}
}
G_vmlCanvasManager_.init();
// precompute "00" to "FF"
var decToHex = [];
for (var i = 0; i < 16; i++) {
for (var j = 0; j < 16; j++) {
decToHex[i * 16 + j] = i.toString(16) + j.toString(16);
}
}
function createMatrixIdentity() {
return [
[1, 0, 0],
[0, 1, 0],
[0, 0, 1]
];
}
function matrixMultiply(m1, m2) {
var result = createMatrixIdentity();
for (var x = 0; x < 3; x++) {
for (var y = 0; y < 3; y++) {
var sum = 0;
for (var z = 0; z < 3; z++) {
sum += m1[x][z] * m2[z][y];
}
result[x][y] = sum;
}
}
return result;
}
function copyState(o1, o2) {
o2.fillStyle = o1.fillStyle;
o2.lineCap = o1.lineCap;
o2.lineJoin = o1.lineJoin;
o2.lineWidth = o1.lineWidth;
o2.miterLimit = o1.miterLimit;
o2.shadowBlur = o1.shadowBlur;
o2.shadowColor = o1.shadowColor;
o2.shadowOffsetX = o1.shadowOffsetX;
o2.shadowOffsetY = o1.shadowOffsetY;
o2.strokeStyle = o1.strokeStyle;
o2.globalAlpha = o1.globalAlpha;
o2.font = o1.font;
o2.textAlign = o1.textAlign;
o2.textBaseline = o1.textBaseline;
o2.arcScaleX_ = o1.arcScaleX_;
o2.arcScaleY_ = o1.arcScaleY_;
o2.lineScale_ = o1.lineScale_;
}
var colorData = {
aliceblue: '#F0F8FF',
antiquewhite: '#FAEBD7',
aquamarine: '#7FFFD4',
azure: '#F0FFFF',
beige: '#F5F5DC',
bisque: '#FFE4C4',
black: '#000000',
blanchedalmond: '#FFEBCD',
blueviolet: '#8A2BE2',
brown: '#A52A2A',
burlywood: '#DEB887',
cadetblue: '#5F9EA0',
chartreuse: '#7FFF00',
chocolate: '#D2691E',
coral: '#FF7F50',
cornflowerblue: '#6495ED',
cornsilk: '#FFF8DC',
crimson: '#DC143C',
cyan: '#00FFFF',
darkblue: '#00008B',
darkcyan: '#008B8B',
darkgoldenrod: '#B8860B',
darkgray: '#A9A9A9',
darkgreen: '#006400',
darkgrey: '#A9A9A9',
darkkhaki: '#BDB76B',
darkmagenta: '#8B008B',
darkolivegreen: '#556B2F',
darkorange: '#FF8C00',
darkorchid: '#9932CC',
darkred: '#8B0000',
darksalmon: '#E9967A',
darkseagreen: '#8FBC8F',
darkslateblue: '#483D8B',
darkslategray: '#2F4F4F',
darkslategrey: '#2F4F4F',
darkturquoise: '#00CED1',
darkviolet: '#9400D3',
deeppink: '#FF1493',
deepskyblue: '#00BFFF',
dimgray: '#696969',
dimgrey: '#696969',
dodgerblue: '#1E90FF',
firebrick: '#B22222',
floralwhite: '#FFFAF0',
forestgreen: '#228B22',
gainsboro: '#DCDCDC',
ghostwhite: '#F8F8FF',
gold: '#FFD700',
goldenrod: '#DAA520',
grey: '#808080',
greenyellow: '#ADFF2F',
honeydew: '#F0FFF0',
hotpink: '#FF69B4',
indianred: '#CD5C5C',
indigo: '#4B0082',
ivory: '#FFFFF0',
khaki: '#F0E68C',
lavender: '#E6E6FA',
lavenderblush: '#FFF0F5',
lawngreen: '#7CFC00',
lemonchiffon: '#FFFACD',
lightblue: '#ADD8E6',
lightcoral: '#F08080',
lightcyan: '#E0FFFF',
lightgoldenrodyellow: '#FAFAD2',
lightgreen: '#90EE90',
lightgrey: '#D3D3D3',
lightpink: '#FFB6C1',
lightsalmon: '#FFA07A',
lightseagreen: '#20B2AA',
lightskyblue: '#87CEFA',
lightslategray: '#778899',
lightslategrey: '#778899',
lightsteelblue: '#B0C4DE',
lightyellow: '#FFFFE0',
limegreen: '#32CD32',
linen: '#FAF0E6',
magenta: '#FF00FF',
mediumaquamarine: '#66CDAA',
mediumblue: '#0000CD',
mediumorchid: '#BA55D3',
mediumpurple: '#9370DB',
mediumseagreen: '#3CB371',
mediumslateblue: '#7B68EE',
mediumspringgreen: '#00FA9A',
mediumturquoise: '#48D1CC',
mediumvioletred: '#C71585',
midnightblue: '#191970',
mintcream: '#F5FFFA',
mistyrose: '#FFE4E1',
moccasin: '#FFE4B5',
navajowhite: '#FFDEAD',
oldlace: '#FDF5E6',
olivedrab: '#6B8E23',
orange: '#FFA500',
orangered: '#FF4500',
orchid: '#DA70D6',
palegoldenrod: '#EEE8AA',
palegreen: '#98FB98',
paleturquoise: '#AFEEEE',
palevioletred: '#DB7093',
papayawhip: '#FFEFD5',
peachpuff: '#FFDAB9',
peru: '#CD853F',
pink: '#FFC0CB',
plum: '#DDA0DD',
powderblue: '#B0E0E6',
rosybrown: '#BC8F8F',
royalblue: '#4169E1',
saddlebrown: '#8B4513',
salmon: '#FA8072',
sandybrown: '#F4A460',
seagreen: '#2E8B57',
seashell: '#FFF5EE',
sienna: '#A0522D',
skyblue: '#87CEEB',
slateblue: '#6A5ACD',
slategray: '#708090',
slategrey: '#708090',
snow: '#FFFAFA',
springgreen: '#00FF7F',
steelblue: '#4682B4',
tan: '#D2B48C',
thistle: '#D8BFD8',
tomato: '#FF6347',
turquoise: '#40E0D0',
violet: '#EE82EE',
wheat: '#F5DEB3',
whitesmoke: '#F5F5F5',
yellowgreen: '#9ACD32'
};
function getRgbHslContent(styleString) {
var start = styleString.indexOf('(', 3);
var end = styleString.indexOf(')', start + 1);
var parts = styleString.substring(start + 1, end).split(',');
// add alpha if needed
if (parts.length != 4 || styleString.charAt(3) != 'a') {
parts[3] = 1;
}
return parts;
}
function percent(s) {
return parseFloat(s) / 100;
}
function clamp(v, min, max) {
return Math.min(max, Math.max(min, v));
}
function hslToRgb(parts){
var r, g, b, h, s, l;
h = parseFloat(parts[0]) / 360 % 360;
if (h < 0)
h++;
s = clamp(percent(parts[1]), 0, 1);
l = clamp(percent(parts[2]), 0, 1);
if (s == 0) {
r = g = b = l; // achromatic
} else {
var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
var p = 2 * l - q;
r = hueToRgb(p, q, h + 1 / 3);
g = hueToRgb(p, q, h);
b = hueToRgb(p, q, h - 1 / 3);
}
return '#' + decToHex[Math.floor(r * 255)] +
decToHex[Math.floor(g * 255)] +
decToHex[Math.floor(b * 255)];
}
function hueToRgb(m1, m2, h) {
if (h < 0)
h++;
if (h > 1)
h--;
if (6 * h < 1)
return m1 + (m2 - m1) * 6 * h;
else if (2 * h < 1)
return m2;
else if (3 * h < 2)
return m1 + (m2 - m1) * (2 / 3 - h) * 6;
else
return m1;
}
var processStyleCache = {};
function processStyle(styleString) {
if (styleString in processStyleCache) {
return processStyleCache[styleString];
}
var str, alpha = 1;
styleString = String(styleString);
if (styleString.charAt(0) == '#') {
str = styleString;
} else if (/^rgb/.test(styleString)) {
var parts = getRgbHslContent(styleString);
var str = '#', n;
for (var i = 0; i < 3; i++) {
if (parts[i].indexOf('%') != -1) {
n = Math.floor(percent(parts[i]) * 255);
} else {
n = +parts[i];
}
str += decToHex[clamp(n, 0, 255)];
}
alpha = +parts[3];
} else if (/^hsl/.test(styleString)) {
var parts = getRgbHslContent(styleString);
str = hslToRgb(parts);
alpha = parts[3];
} else {
str = colorData[styleString] || styleString;
}
return processStyleCache[styleString] = {color: str, alpha: alpha};
}
var DEFAULT_STYLE = {
style: 'normal',
variant: 'normal',
weight: 'normal',
size: 10,
family: 'sans-serif'
};
// Internal text style cache
var fontStyleCache = {};
function processFontStyle(styleString) {
if (fontStyleCache[styleString]) {
return fontStyleCache[styleString];
}
var el = document.createElement('div');
var style = el.style;
try {
style.font = styleString;
} catch (ex) {
// Ignore failures to set to invalid font.
}
return fontStyleCache[styleString] = {
style: style.fontStyle || DEFAULT_STYLE.style,
variant: style.fontVariant || DEFAULT_STYLE.variant,
weight: style.fontWeight || DEFAULT_STYLE.weight,
size: style.fontSize || DEFAULT_STYLE.size,
family: style.fontFamily || DEFAULT_STYLE.family
};
}
function getComputedStyle(style, element) {
var computedStyle = {};
for (var p in style) {
computedStyle[p] = style[p];
}
// Compute the size
var canvasFontSize = parseFloat(element.currentStyle.fontSize),
fontSize = parseFloat(style.size);
if (typeof style.size == 'number') {
computedStyle.size = style.size;
} else if (style.size.indexOf('px') != -1) {
computedStyle.size = fontSize;
} else if (style.size.indexOf('em') != -1) {
computedStyle.size = canvasFontSize * fontSize;
} else if(style.size.indexOf('%') != -1) {
computedStyle.size = (canvasFontSize / 100) * fontSize;
} else if (style.size.indexOf('pt') != -1) {
computedStyle.size = fontSize / .75;
} else {
computedStyle.size = canvasFontSize;
}
// Different scaling between normal text and VML text. This was found using
// trial and error to get the same size as non VML text.
computedStyle.size *= 0.981;
return computedStyle;
}
function buildStyle(style) {
return style.style + ' ' + style.variant + ' ' + style.weight + ' ' +
style.size + 'px ' + style.family;
}
var lineCapMap = {
'butt': 'flat',
'round': 'round'
};
function processLineCap(lineCap) {
return lineCapMap[lineCap] || 'square';
}
/**
* This class implements CanvasRenderingContext2D interface as described by
* the WHATWG.
* @param {HTMLElement} canvasElement The element that the 2D context should
* be associated with
*/
function CanvasRenderingContext2D_(canvasElement) {
this.m_ = createMatrixIdentity();
this.mStack_ = [];
this.aStack_ = [];
this.currentPath_ = [];
// Canvas context properties
this.strokeStyle = '#000';
this.fillStyle = '#000';
this.lineWidth = 1;
this.lineJoin = 'miter';
this.lineCap = 'butt';
this.miterLimit = Z * 1;
this.globalAlpha = 1;
this.font = '10px sans-serif';
this.textAlign = 'left';
this.textBaseline = 'alphabetic';
this.canvas = canvasElement;
var cssText = 'width:' + canvasElement.clientWidth + 'px;height:' +
canvasElement.clientHeight + 'px;overflow:hidden;position:absolute';
var el = canvasElement.ownerDocument.createElement('div');
el.style.cssText = cssText;
canvasElement.appendChild(el);
var overlayEl = el.cloneNode(false);
// Use a non transparent background.
overlayEl.style.backgroundColor = 'red';
overlayEl.style.filter = 'alpha(opacity=0)';
canvasElement.appendChild(overlayEl);
this.element_ = el;
this.arcScaleX_ = 1;
this.arcScaleY_ = 1;
this.lineScale_ = 1;
}
var contextPrototype = CanvasRenderingContext2D_.prototype;
contextPrototype.clearRect = function() {
if (this.textMeasureEl_) {
this.textMeasureEl_.removeNode(true);
this.textMeasureEl_ = null;
}
this.element_.innerHTML = '';
};
contextPrototype.beginPath = function() {
// TODO: Branch current matrix so that save/restore has no effect
// as per safari docs.
this.currentPath_ = [];
};
contextPrototype.moveTo = function(aX, aY) {
var p = getCoords(this, aX, aY);
this.currentPath_.push({type: 'moveTo', x: p.x, y: p.y});
this.currentX_ = p.x;
this.currentY_ = p.y;
};
contextPrototype.lineTo = function(aX, aY) {
var p = getCoords(this, aX, aY);
this.currentPath_.push({type: 'lineTo', x: p.x, y: p.y});
this.currentX_ = p.x;
this.currentY_ = p.y;
};
contextPrototype.bezierCurveTo = function(aCP1x, aCP1y,
aCP2x, aCP2y,
aX, aY) {
var p = getCoords(this, aX, aY);
var cp1 = getCoords(this, aCP1x, aCP1y);
var cp2 = getCoords(this, aCP2x, aCP2y);
bezierCurveTo(this, cp1, cp2, p);
};
// Helper function that takes the already fixed cordinates.
function bezierCurveTo(self, cp1, cp2, p) {
self.currentPath_.push({
type: 'bezierCurveTo',
cp1x: cp1.x,
cp1y: cp1.y,
cp2x: cp2.x,
cp2y: cp2.y,
x: p.x,
y: p.y
});
self.currentX_ = p.x;
self.currentY_ = p.y;
}
contextPrototype.quadraticCurveTo = function(aCPx, aCPy, aX, aY) {
// the following is lifted almost directly from
// http://developer.mozilla.org/en/docs/Canvas_tutorial:Drawing_shapes
var cp = getCoords(this, aCPx, aCPy);
var p = getCoords(this, aX, aY);
var cp1 = {
x: this.currentX_ + 2.0 / 3.0 * (cp.x - this.currentX_),
y: this.currentY_ + 2.0 / 3.0 * (cp.y - this.currentY_)
};
var cp2 = {
x: cp1.x + (p.x - this.currentX_) / 3.0,
y: cp1.y + (p.y - this.currentY_) / 3.0
};
bezierCurveTo(this, cp1, cp2, p);
};
contextPrototype.arc = function(aX, aY, aRadius,
aStartAngle, aEndAngle, aClockwise) {
aRadius *= Z;
var arcType = aClockwise ? 'at' : 'wa';
var xStart = aX + mc(aStartAngle) * aRadius - Z2;
var yStart = aY + ms(aStartAngle) * aRadius - Z2;
var xEnd = aX + mc(aEndAngle) * aRadius - Z2;
var yEnd = aY + ms(aEndAngle) * aRadius - Z2;
// IE won't render arches drawn counter clockwise if xStart == xEnd.
if (xStart == xEnd && !aClockwise) {
xStart += 0.125; // Offset xStart by 1/80 of a pixel. Use something
// that can be represented in binary
}
var p = getCoords(this, aX, aY);
var pStart = getCoords(this, xStart, yStart);
var pEnd = getCoords(this, xEnd, yEnd);
this.currentPath_.push({type: arcType,
x: p.x,
y: p.y,
radius: aRadius,
xStart: pStart.x,
yStart: pStart.y,
xEnd: pEnd.x,
yEnd: pEnd.y});
};
contextPrototype.rect = function(aX, aY, aWidth, aHeight) {
this.moveTo(aX, aY);
this.lineTo(aX + aWidth, aY);
this.lineTo(aX + aWidth, aY + aHeight);
this.lineTo(aX, aY + aHeight);
this.closePath();
};
contextPrototype.strokeRect = function(aX, aY, aWidth, aHeight) {
var oldPath = this.currentPath_;
this.beginPath();
this.moveTo(aX, aY);
this.lineTo(aX + aWidth, aY);
this.lineTo(aX + aWidth, aY + aHeight);
this.lineTo(aX, aY + aHeight);
this.closePath();
this.stroke();
this.currentPath_ = oldPath;
};
contextPrototype.fillRect = function(aX, aY, aWidth, aHeight) {
var oldPath = this.currentPath_;
this.beginPath();
this.moveTo(aX, aY);
this.lineTo(aX + aWidth, aY);
this.lineTo(aX + aWidth, aY + aHeight);
this.lineTo(aX, aY + aHeight);
this.closePath();
this.fill();
this.currentPath_ = oldPath;
};
contextPrototype.createLinearGradient = function(aX0, aY0, aX1, aY1) {
var gradient = new CanvasGradient_('gradient');
gradient.x0_ = aX0;
gradient.y0_ = aY0;
gradient.x1_ = aX1;
gradient.y1_ = aY1;
return gradient;
};
contextPrototype.createRadialGradient = function(aX0, aY0, aR0,
aX1, aY1, aR1) {
var gradient = new CanvasGradient_('gradientradial');
gradient.x0_ = aX0;
gradient.y0_ = aY0;
gradient.r0_ = aR0;
gradient.x1_ = aX1;
gradient.y1_ = aY1;
gradient.r1_ = aR1;
return gradient;
};
contextPrototype.drawImage = function(image, var_args) {
var dx, dy, dw, dh, sx, sy, sw, sh;
// to find the original width we overide the width and height
var oldRuntimeWidth = image.runtimeStyle.width;
var oldRuntimeHeight = image.runtimeStyle.height;
image.runtimeStyle.width = 'auto';
image.runtimeStyle.height = 'auto';
// get the original size
var w = image.width;
var h = image.height;
// and remove overides
image.runtimeStyle.width = oldRuntimeWidth;
image.runtimeStyle.height = oldRuntimeHeight;
if (arguments.length == 3) {
dx = arguments[1];
dy = arguments[2];
sx = sy = 0;
sw = dw = w;
sh = dh = h;
} else if (arguments.length == 5) {
dx = arguments[1];
dy = arguments[2];
dw = arguments[3];
dh = arguments[4];
sx = sy = 0;
sw = w;
sh = h;
} else if (arguments.length == 9) {
sx = arguments[1];
sy = arguments[2];
sw = arguments[3];
sh = arguments[4];
dx = arguments[5];
dy = arguments[6];
dw = arguments[7];
dh = arguments[8];
} else {
throw Error('Invalid number of arguments');
}
var d = getCoords(this, dx, dy);
var w2 = sw / 2;
var h2 = sh / 2;
var vmlStr = [];
var W = 10;
var H = 10;
// For some reason that I've now forgotten, using divs didn't work
vmlStr.push(' <g_vml_:group',
' coordsize="', Z * W, ',', Z * H, '"',
' coordorigin="0,0"' ,
' style="width:', W, 'px;height:', H, 'px;position:absolute;');
// If filters are necessary (rotation exists), create them
// filters are bog-slow, so only create them if abbsolutely necessary
// The following check doesn't account for skews (which don't exist
// in the canvas spec (yet) anyway.
if (this.m_[0][0] != 1 || this.m_[0][1] ||
this.m_[1][1] != 1 || this.m_[1][0]) {
var filter = [];
// Note the 12/21 reversal
filter.push('M11=', this.m_[0][0], ',',
'M12=', this.m_[1][0], ',',
'M21=', this.m_[0][1], ',',
'M22=', this.m_[1][1], ',',
'Dx=', mr(d.x / Z), ',',
'Dy=', mr(d.y / Z), '');
// Bounding box calculation (need to minimize displayed area so that
// filters don't waste time on unused pixels.
var max = d;
var c2 = getCoords(this, dx + dw, dy);
var c3 = getCoords(this, dx, dy + dh);
var c4 = getCoords(this, dx + dw, dy + dh);
max.x = m.max(max.x, c2.x, c3.x, c4.x);
max.y = m.max(max.y, c2.y, c3.y, c4.y);
vmlStr.push('padding:0 ', mr(max.x / Z), 'px ', mr(max.y / Z),
'px 0;filter:progid:DXImageTransform.Microsoft.Matrix(',
filter.join(''), ", sizingmethod='clip');");
} else {
vmlStr.push('top:', mr(d.y / Z), 'px;left:', mr(d.x / Z), 'px;');
}
vmlStr.push(' ">' ,
'<g_vml_:image src="', image.src, '"',
' style="width:', Z * dw, 'px;',
' height:', Z * dh, 'px"',
' cropleft="', sx / w, '"',
' croptop="', sy / h, '"',
' cropright="', (w - sx - sw) / w, '"',
' cropbottom="', (h - sy - sh) / h, '"',
' />',
'</g_vml_:group>');
this.element_.insertAdjacentHTML('BeforeEnd', vmlStr.join(''));
};
contextPrototype.stroke = function(aFill) {
var W = 10;
var H = 10;
// Divide the shape into chunks if it's too long because IE has a limit
// somewhere for how long a VML shape can be. This simple division does
// not work with fills, only strokes, unfortunately.
var chunkSize = 5000;
var min = {x: null, y: null};
var max = {x: null, y: null};
for (var j = 0; j < this.currentPath_.length; j += chunkSize) {
var lineStr = [];
var lineOpen = false;
lineStr.push('<g_vml_:shape',
' filled="', !!aFill, '"',
' style="position:absolute;width:', W, 'px;height:', H, 'px;"',
' coordorigin="0,0"',
' coordsize="', Z * W, ',', Z * H, '"',
' stroked="', !aFill, '"',
' path="');
var newSeq = false;
for (var i = j; i < Math.min(j + chunkSize, this.currentPath_.length); i++) {
if (i % chunkSize == 0 && i > 0) { // move into position for next chunk
lineStr.push(' m ', mr(this.currentPath_[i-1].x), ',', mr(this.currentPath_[i-1].y));
}
var p = this.currentPath_[i];
var c;
switch (p.type) {
case 'moveTo':
c = p;
lineStr.push(' m ', mr(p.x), ',', mr(p.y));
break;
case 'lineTo':
lineStr.push(' l ', mr(p.x), ',', mr(p.y));
break;
case 'close':
lineStr.push(' x ');
p = null;
break;
case 'bezierCurveTo':
lineStr.push(' c ',
mr(p.cp1x), ',', mr(p.cp1y), ',',
mr(p.cp2x), ',', mr(p.cp2y), ',',
mr(p.x), ',', mr(p.y));
break;
case 'at':
case 'wa':
lineStr.push(' ', p.type, ' ',
mr(p.x - this.arcScaleX_ * p.radius), ',',
mr(p.y - this.arcScaleY_ * p.radius), ' ',
mr(p.x + this.arcScaleX_ * p.radius), ',',
mr(p.y + this.arcScaleY_ * p.radius), ' ',
mr(p.xStart), ',', mr(p.yStart), ' ',
mr(p.xEnd), ',', mr(p.yEnd));
break;
}
// TODO: Following is broken for curves due to
// move to proper paths.
// Figure out dimensions so we can do gradient fills
// properly
if (p) {
if (min.x == null || p.x < min.x) {
min.x = p.x;
}
if (max.x == null || p.x > max.x) {
max.x = p.x;
}
if (min.y == null || p.y < min.y) {
min.y = p.y;
}
if (max.y == null || p.y > max.y) {
max.y = p.y;
}
}
}
lineStr.push(' ">');
if (!aFill) {
appendStroke(this, lineStr);
} else {
appendFill(this, lineStr, min, max);
}
lineStr.push('</g_vml_:shape>');
this.element_.insertAdjacentHTML('beforeEnd', lineStr.join(''));
}
};
function appendStroke(ctx, lineStr) {
var a = processStyle(ctx.strokeStyle);
var color = a.color;
var opacity = a.alpha * ctx.globalAlpha;
var lineWidth = ctx.lineScale_ * ctx.lineWidth;
// VML cannot correctly render a line if the width is less than 1px.
// In that case, we dilute the color to make the line look thinner.
if (lineWidth < 1) {
opacity *= lineWidth;
}
lineStr.push(
'<g_vml_:stroke',
' opacity="', opacity, '"',
' joinstyle="', ctx.lineJoin, '"',
' miterlimit="', ctx.miterLimit, '"',
' endcap="', processLineCap(ctx.lineCap), '"',
' weight="', lineWidth, 'px"',
' color="', color, '" />'
);
}
function appendFill(ctx, lineStr, min, max) {
var fillStyle = ctx.fillStyle;
var arcScaleX = ctx.arcScaleX_;
var arcScaleY = ctx.arcScaleY_;
var width = max.x - min.x;
var height = max.y - min.y;
if (fillStyle instanceof CanvasGradient_) {
// TODO: Gradients transformed with the transformation matrix.
var angle = 0;
var focus = {x: 0, y: 0};
// additional offset
var shift = 0;
// scale factor for offset
var expansion = 1;
if (fillStyle.type_ == 'gradient') {
var x0 = fillStyle.x0_ / arcScaleX;
var y0 = fillStyle.y0_ / arcScaleY;
var x1 = fillStyle.x1_ / arcScaleX;
var y1 = fillStyle.y1_ / arcScaleY;
var p0 = getCoords(ctx, x0, y0);
var p1 = getCoords(ctx, x1, y1);
var dx = p1.x - p0.x;
var dy = p1.y - p0.y;
angle = Math.atan2(dx, dy) * 180 / Math.PI;
// The angle should be a non-negative number.
if (angle < 0) {
angle += 360;
}
// Very small angles produce an unexpected result because they are
// converted to a scientific notation string.
if (angle < 1e-6) {
angle = 0;
}
} else {
var p0 = getCoords(ctx, fillStyle.x0_, fillStyle.y0_);
focus = {
x: (p0.x - min.x) / width,
y: (p0.y - min.y) / height
};
width /= arcScaleX * Z;
height /= arcScaleY * Z;
var dimension = m.max(width, height);
shift = 2 * fillStyle.r0_ / dimension;
expansion = 2 * fillStyle.r1_ / dimension - shift;
}
// We need to sort the color stops in ascending order by offset,
// otherwise IE won't interpret it correctly.
var stops = fillStyle.colors_;
stops.sort(function(cs1, cs2) {
return cs1.offset - cs2.offset;
});
var length = stops.length;
var color1 = stops[0].color;
var color2 = stops[length - 1].color;
var opacity1 = stops[0].alpha * ctx.globalAlpha;
var opacity2 = stops[length - 1].alpha * ctx.globalAlpha;
var colors = [];
for (var i = 0; i < length; i++) {
var stop = stops[i];
colors.push(stop.offset * expansion + shift + ' ' + stop.color);
}
// When colors attribute is used, the meanings of opacity and o:opacity2
// are reversed.
lineStr.push('<g_vml_:fill type="', fillStyle.type_, '"',
' method="none" focus="100%"',
' color="', color1, '"',
' color2="', color2, '"',
' colors="', colors.join(','), '"',
' opacity="', opacity2, '"',
' g_o_:opacity2="', opacity1, '"',
' angle="', angle, '"',
' focusposition="', focus.x, ',', focus.y, '" />');
} else if (fillStyle instanceof CanvasPattern_) {
if (width && height) {
var deltaLeft = -min.x;
var deltaTop = -min.y;
lineStr.push('<g_vml_:fill',
' position="',
deltaLeft / width * arcScaleX * arcScaleX, ',',
deltaTop / height * arcScaleY * arcScaleY, '"',
' type="tile"',
// TODO: Figure out the correct size to fit the scale.
//' size="', w, 'px ', h, 'px"',
' src="', fillStyle.src_, '" />');
}
} else {
var a = processStyle(ctx.fillStyle);
var color = a.color;
var opacity = a.alpha * ctx.globalAlpha;
lineStr.push('<g_vml_:fill color="', color, '" opacity="', opacity,
'" />');
}
}
contextPrototype.fill = function() {
this.stroke(true);
};
contextPrototype.closePath = function() {
this.currentPath_.push({type: 'close'});
};
function getCoords(ctx, aX, aY) {
var m = ctx.m_;
return {
x: Z * (aX * m[0][0] + aY * m[1][0] + m[2][0]) - Z2,
y: Z * (aX * m[0][1] + aY * m[1][1] + m[2][1]) - Z2
};
};
contextPrototype.save = function() {
var o = {};
copyState(this, o);
this.aStack_.push(o);
this.mStack_.push(this.m_);
this.m_ = matrixMultiply(createMatrixIdentity(), this.m_);
};
contextPrototype.restore = function() {
if (this.aStack_.length) {
copyState(this.aStack_.pop(), this);
this.m_ = this.mStack_.pop();
}
};
function matrixIsFinite(m) {
return isFinite(m[0][0]) && isFinite(m[0][1]) &&
isFinite(m[1][0]) && isFinite(m[1][1]) &&
isFinite(m[2][0]) && isFinite(m[2][1]);
}
function setM(ctx, m, updateLineScale) {
if (!matrixIsFinite(m)) {
return;
}
ctx.m_ = m;
if (updateLineScale) {
// Get the line scale.
// Determinant of this.m_ means how much the area is enlarged by the
// transformation. So its square root can be used as a scale factor
// for width.
var det = m[0][0] * m[1][1] - m[0][1] * m[1][0];
ctx.lineScale_ = sqrt(abs(det));
}
}
contextPrototype.translate = function(aX, aY) {
var m1 = [
[1, 0, 0],
[0, 1, 0],
[aX, aY, 1]
];
setM(this, matrixMultiply(m1, this.m_), false);
};
contextPrototype.rotate = function(aRot) {
var c = mc(aRot);
var s = ms(aRot);
var m1 = [
[c, s, 0],
[-s, c, 0],
[0, 0, 1]
];
setM(this, matrixMultiply(m1, this.m_), false);
};
contextPrototype.scale = function(aX, aY) {
this.arcScaleX_ *= aX;
this.arcScaleY_ *= aY;
var m1 = [
[aX, 0, 0],
[0, aY, 0],
[0, 0, 1]
];
setM(this, matrixMultiply(m1, this.m_), true);
};
contextPrototype.transform = function(m11, m12, m21, m22, dx, dy) {
var m1 = [
[m11, m12, 0],
[m21, m22, 0],
[dx, dy, 1]
];
setM(this, matrixMultiply(m1, this.m_), true);
};
contextPrototype.setTransform = function(m11, m12, m21, m22, dx, dy) {
var m = [
[m11, m12, 0],
[m21, m22, 0],
[dx, dy, 1]
];
setM(this, m, true);
};
/**
* The text drawing function.
* The maxWidth argument isn't taken in account, since no browser supports
* it yet.
*/
contextPrototype.drawText_ = function(text, x, y, maxWidth, stroke) {
var m = this.m_,
delta = 1000,
left = 0,
right = delta,
offset = {x: 0, y: 0},
lineStr = [];
var fontStyle = getComputedStyle(processFontStyle(this.font),
this.element_);
var fontStyleString = buildStyle(fontStyle);
var elementStyle = this.element_.currentStyle;
var textAlign = this.textAlign.toLowerCase();
switch (textAlign) {
case 'left':
case 'center':
case 'right':
break;
case 'end':
textAlign = elementStyle.direction == 'ltr' ? 'right' : 'left';
break;
case 'start':
textAlign = elementStyle.direction == 'rtl' ? 'right' : 'left';
break;
default:
textAlign = 'left';
}
// 1.75 is an arbitrary number, as there is no info about the text baseline
switch (this.textBaseline) {
case 'hanging':
case 'top':
offset.y = fontStyle.size / 1.75;
break;
case 'middle':
break;
default:
case null:
case 'alphabetic':
case 'ideographic':
case 'bottom':
offset.y = -fontStyle.size / 2.25;
break;
}
switch(textAlign) {
case 'right':
left = delta;
right = 0.05;
break;
case 'center':
left = right = delta / 2;
break;
}
var d = getCoords(this, x + offset.x, y + offset.y);
lineStr.push('<g_vml_:line from="', -left ,' 0" to="', right ,' 0.05" ',
' coordsize="100 100" coordorigin="0 0"',
' filled="', !stroke, '" stroked="', !!stroke,
'" style="position:absolute;width:1px;height:1px;">');
if (stroke) {
appendStroke(this, lineStr);
} else {
// TODO: Fix the min and max params.
appendFill(this, lineStr, {x: -left, y: 0},
{x: right, y: fontStyle.size});
}
var skewM = m[0][0].toFixed(3) + ',' + m[1][0].toFixed(3) + ',' +
m[0][1].toFixed(3) + ',' + m[1][1].toFixed(3) + ',0,0';
var skewOffset = mr(d.x / Z) + ',' + mr(d.y / Z);
lineStr.push('<g_vml_:skew on="t" matrix="', skewM ,'" ',
' offset="', skewOffset, '" origin="', left ,' 0" />',
'<g_vml_:path textpathok="true" />',
'<g_vml_:textpath on="true" string="',
encodeHtmlAttribute(text),
'" style="v-text-align:', textAlign,
';font:', encodeHtmlAttribute(fontStyleString),
'" /></g_vml_:line>');
this.element_.insertAdjacentHTML('beforeEnd', lineStr.join(''));
};
contextPrototype.fillText = function(text, x, y, maxWidth) {
this.drawText_(text, x, y, maxWidth, false);
};
contextPrototype.strokeText = function(text, x, y, maxWidth) {
this.drawText_(text, x, y, maxWidth, true);
};
contextPrototype.measureText = function(text) {
if (!this.textMeasureEl_) {
var s = '<span style="position:absolute;' +
'top:-20000px;left:0;padding:0;margin:0;border:none;' +
'white-space:pre;"></span>';
this.element_.insertAdjacentHTML('beforeEnd', s);
this.textMeasureEl_ = this.element_.lastChild;
}
var doc = this.element_.ownerDocument;
this.textMeasureEl_.innerHTML = '';
this.textMeasureEl_.style.font = this.font;
// Don't use innerHTML or innerText because they allow markup/whitespace.
this.textMeasureEl_.appendChild(doc.createTextNode(text));
return {width: this.textMeasureEl_.offsetWidth};
};
/******** STUBS ********/
contextPrototype.clip = function() {
// TODO: Implement
};
contextPrototype.arcTo = function() {
// TODO: Implement
};
contextPrototype.createPattern = function(image, repetition) {
return new CanvasPattern_(image, repetition);
};
// Gradient / Pattern Stubs
function CanvasGradient_(aType) {
this.type_ = aType;
this.x0_ = 0;
this.y0_ = 0;
this.r0_ = 0;
this.x1_ = 0;
this.y1_ = 0;
this.r1_ = 0;
this.colors_ = [];
}
CanvasGradient_.prototype.addColorStop = function(aOffset, aColor) {
aColor = processStyle(aColor);
this.colors_.push({offset: aOffset,
color: aColor.color,
alpha: aColor.alpha});
};
function CanvasPattern_(image, repetition) {
assertImageIsValid(image);
switch (repetition) {
case 'repeat':
case null:
case '':
this.repetition_ = 'repeat';
break
case 'repeat-x':
case 'repeat-y':
case 'no-repeat':
this.repetition_ = repetition;
break;
default:
throwException('SYNTAX_ERR');
}
this.src_ = image.src;
this.width_ = image.width;
this.height_ = image.height;
}
function throwException(s) {
throw new DOMException_(s);
}
function assertImageIsValid(img) {
if (!img || img.nodeType != 1 || img.tagName != 'IMG') {
throwException('TYPE_MISMATCH_ERR');
}
if (img.readyState != 'complete') {
throwException('INVALID_STATE_ERR');
}
}
function DOMException_(s) {
this.code = this[s];
this.message = s +': DOM Exception ' + this.code;
}
var p = DOMException_.prototype = new Error;
p.INDEX_SIZE_ERR = 1;
p.DOMSTRING_SIZE_ERR = 2;
p.HIERARCHY_REQUEST_ERR = 3;
p.WRONG_DOCUMENT_ERR = 4;
p.INVALID_CHARACTER_ERR = 5;
p.NO_DATA_ALLOWED_ERR = 6;
p.NO_MODIFICATION_ALLOWED_ERR = 7;
p.NOT_FOUND_ERR = 8;
p.NOT_SUPPORTED_ERR = 9;
p.INUSE_ATTRIBUTE_ERR = 10;
p.INVALID_STATE_ERR = 11;
p.SYNTAX_ERR = 12;
p.INVALID_MODIFICATION_ERR = 13;
p.NAMESPACE_ERR = 14;
p.INVALID_ACCESS_ERR = 15;
p.VALIDATION_ERR = 16;
p.TYPE_MISMATCH_ERR = 17;
// set up externs
G_vmlCanvasManager = G_vmlCanvasManager_;
CanvasRenderingContext2D = CanvasRenderingContext2D_;
CanvasGradient = CanvasGradient_;
CanvasPattern = CanvasPattern_;
DOMException = DOMException_;
})();
} // if
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{
"name": "flot",
"version": "0.8.3",
"title": "Flot",
"author": {
"name": "Ole Laursen",
"url": "https://github.com/OleLaursen"
},
"licenses": [{
"type": "MIT",
"url": "http://github.com/flot/flot/blob/master/LICENSE.txt"
}],
"dependencies": {
"jquery": ">=1.2.6"
},
"description": "Flot is a pure JavaScript plotting library for jQuery, with a focus on simple usage, attractive looks and interactive features.",
"keywords": ["plot", "chart", "graph", "visualization", "canvas", "graphics"],
"homepage": "http://www.flotcharts.org",
"docs": "http://github.com/flot/flot/blob/master/API.md",
"demo": "http://www.flotcharts.org/flot/examples/",
"bugs": "http://github.com/flot/flot/issues",
"maintainers": [{
"name": "David Schnur",
"email": "dnschnur@gmail.com",
"url": "http://github.com/dnschnur"
}]
}
/* Plugin for jQuery for working with colors.
*
* Version 1.1.
*
* Inspiration from jQuery color animation plugin by John Resig.
*
* Released under the MIT license by Ole Laursen, October 2009.
*
* Examples:
*
* $.color.parse("#fff").scale('rgb', 0.25).add('a', -0.5).toString()
* var c = $.color.extract($("#mydiv"), 'background-color');
* console.log(c.r, c.g, c.b, c.a);
* $.color.make(100, 50, 25, 0.4).toString() // returns "rgba(100,50,25,0.4)"
*
* Note that .scale() and .add() return the same modified object
* instead of making a new one.
*
* V. 1.1: Fix error handling so e.g. parsing an empty string does
* produce a color rather than just crashing.
*/
(function($) {
$.color = {};
// construct color object with some convenient chainable helpers
$.color.make = function (r, g, b, a) {
var o = {};
o.r = r || 0;
o.g = g || 0;
o.b = b || 0;
o.a = a != null ? a : 1;
o.add = function (c, d) {
for (var i = 0; i < c.length; ++i)
o[c.charAt(i)] += d;
return o.normalize();
};
o.scale = function (c, f) {
for (var i = 0; i < c.length; ++i)
o[c.charAt(i)] *= f;
return o.normalize();
};
o.toString = function () {
if (o.a >= 1.0) {
return "rgb("+[o.r, o.g, o.b].join(",")+")";
} else {
return "rgba("+[o.r, o.g, o.b, o.a].join(",")+")";
}
};
o.normalize = function () {
function clamp(min, value, max) {
return value < min ? min: (value > max ? max: value);
}
o.r = clamp(0, parseInt(o.r), 255);
o.g = clamp(0, parseInt(o.g), 255);
o.b = clamp(0, parseInt(o.b), 255);
o.a = clamp(0, o.a, 1);
return o;
};
o.clone = function () {
return $.color.make(o.r, o.b, o.g, o.a);
};
return o.normalize();
}
// extract CSS color property from element, going up in the DOM
// if it's "transparent"
$.color.extract = function (elem, css) {
var c;
do {
c = elem.css(css).toLowerCase();
// keep going until we find an element that has color, or
// we hit the body or root (have no parent)
if (c != '' && c != 'transparent')
break;
elem = elem.parent();
} while (elem.length && !$.nodeName(elem.get(0), "body"));
// catch Safari's way of signalling transparent
if (c == "rgba(0, 0, 0, 0)")
c = "transparent";
return $.color.parse(c);
}
// parse CSS color string (like "rgb(10, 32, 43)" or "#fff"),
// returns color object, if parsing failed, you get black (0, 0,
// 0) out
$.color.parse = function (str) {
var res, m = $.color.make;
// Look for rgb(num,num,num)
if (res = /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(str))
return m(parseInt(res[1], 10), parseInt(res[2], 10), parseInt(res[3], 10));
// Look for rgba(num,num,num,num)
if (res = /rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str))
return m(parseInt(res[1], 10), parseInt(res[2], 10), parseInt(res[3], 10), parseFloat(res[4]));
// Look for rgb(num%,num%,num%)
if (res = /rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(str))
return m(parseFloat(res[1])*2.55, parseFloat(res[2])*2.55, parseFloat(res[3])*2.55);
// Look for rgba(num%,num%,num%,num)
if (res = /rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str))
return m(parseFloat(res[1])*2.55, parseFloat(res[2])*2.55, parseFloat(res[3])*2.55, parseFloat(res[4]));
// Look for #a0b1c2
if (res = /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(str))
return m(parseInt(res[1], 16), parseInt(res[2], 16), parseInt(res[3], 16));
// Look for #fff
if (res = /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(str))
return m(parseInt(res[1]+res[1], 16), parseInt(res[2]+res[2], 16), parseInt(res[3]+res[3], 16));
// Otherwise, we're most likely dealing with a named color
var name = $.trim(str).toLowerCase();
if (name == "transparent")
return m(255, 255, 255, 0);
else {
// default to black
res = lookupColors[name] || [0, 0, 0];
return m(res[0], res[1], res[2]);
}
}
var lookupColors = {
aqua:[0,255,255],
azure:[240,255,255],
beige:[245,245,220],
black:[0,0,0],
blue:[0,0,255],
brown:[165,42,42],
cyan:[0,255,255],
darkblue:[0,0,139],
darkcyan:[0,139,139],
darkgrey:[169,169,169],
darkgreen:[0,100,0],
darkkhaki:[189,183,107],
darkmagenta:[139,0,139],
darkolivegreen:[85,107,47],
darkorange:[255,140,0],
darkorchid:[153,50,204],
darkred:[139,0,0],
darksalmon:[233,150,122],
darkviolet:[148,0,211],
fuchsia:[255,0,255],
gold:[255,215,0],
green:[0,128,0],
indigo:[75,0,130],
khaki:[240,230,140],
lightblue:[173,216,230],
lightcyan:[224,255,255],
lightgreen:[144,238,144],
lightgrey:[211,211,211],
lightpink:[255,182,193],
lightyellow:[255,255,224],
lime:[0,255,0],
magenta:[255,0,255],
maroon:[128,0,0],
navy:[0,0,128],
olive:[128,128,0],
orange:[255,165,0],
pink:[255,192,203],
purple:[128,0,128],
violet:[128,0,128],
red:[255,0,0],
silver:[192,192,192],
white:[255,255,255],
yellow:[255,255,0]
};
})(jQuery);
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