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<title>Line Charts and Options</title>
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<!-- Example scripts go here -->
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<p>The most basic jqPlot chart takes a series of data and plots a line. No options need to be supplied. Data is passed in as an array of series. A series can be either an array of y values or an array of [x,y] data pairs. If y values only, x values are assigned like 1, 2, 3, ... Note, for this plot you don't need any plugins.</p>
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<div id="chart1" style="height:300px; width:500px;"></div>
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<pre class="code prettyprint brush: js"></pre>
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<p>The following plot uses a number of options to set the title, add axis labels, and shows how to use the canvasAxisLabelRenderer plugin to provide rotated axis labels.</p>
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<div id="chart2" style="height:300px; width:500px;"></div>
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<pre class="code prettyprint brush: js"></pre>
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<p>There are numerous line style options to control how the lines and markers are displayed.</p>
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<div id="chart3" style="height:300px; width:500px;"></div>
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<pre class="code prettyprint brush: js"></pre>
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<script class="code" type="text/javascript">
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$(document).ready(function(){
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var plot1 = $.jqplot ('chart1', [[3,7,9,1,5,3,8,2,5]]);
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});
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</script>
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<script class="code" type="text/javascript">
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$(document).ready(function(){
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var plot2 = $.jqplot ('chart2', [[3,7,9,1,5,3,8,2,5]], {
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// Give the plot a title.
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title: 'Plot With Options',
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// You can specify options for all axes on the plot at once with
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// the axesDefaults object. Here, we're using a canvas renderer
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// to draw the axis label which allows rotated text.
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axesDefaults: {
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labelRenderer: $.jqplot.CanvasAxisLabelRenderer
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},
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// Likewise, seriesDefaults specifies default options for all
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// series in a plot. Options specified in seriesDefaults or
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// axesDefaults can be overridden by individual series or
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// axes options.
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// Here we turn on smoothing for the line.
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seriesDefaults: {
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rendererOptions: {
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smooth: true
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}
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},
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// An axes object holds options for all axes.
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// Allowable axes are xaxis, x2axis, yaxis, y2axis, y3axis, ...
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// Up to 9 y axes are supported.
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axes: {
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// options for each axis are specified in seperate option objects.
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xaxis: {
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label: "X Axis",
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// Turn off "padding". This will allow data point to lie on the
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// edges of the grid. Default padding is 1.2 and will keep all
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// points inside the bounds of the grid.
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pad: 0
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},
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yaxis: {
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label: "Y Axis"
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}
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}
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});
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});
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</script>
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<script class="code" type="text/javascript">
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$(document).ready(function(){
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// Some simple loops to build up data arrays.
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var cosPoints = [];
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for (var i=0; i<2*Math.PI; i+=1){
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cosPoints.push([i, Math.cos(i)]);
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}
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var sinPoints = [];
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for (var i=0; i<2*Math.PI; i+=0.4){
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sinPoints.push([i, 2*Math.sin(i-.8)]);
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}
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var powPoints1 = [];
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for (var i=0; i<2*Math.PI; i+=1) {
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powPoints1.push([i, 2.5 + Math.pow(i/4, 2)]);
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}
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var powPoints2 = [];
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for (var i=0; i<2*Math.PI; i+=1) {
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powPoints2.push([i, -2.5 - Math.pow(i/4, 2)]);
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}
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var plot3 = $.jqplot('chart3', [cosPoints, sinPoints, powPoints1, powPoints2],
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{
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title:'Line Style Options',
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// Set default options on all series, turn on smoothing.
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seriesDefaults: {
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rendererOptions: {
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smooth: true
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}
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},
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// Series options are specified as an array of objects, one object
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// for each series.
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series:[
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{
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// Change our line width and use a diamond shaped marker.
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lineWidth:2,
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markerOptions: { style:'dimaond' }
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},
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{
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// Don't show a line, just show markers.
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// Make the markers 7 pixels with an 'x' style
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showLine:false,
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markerOptions: { size: 7, style:"x" }
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},
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{
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// Use (open) circlular markers.
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markerOptions: { style:"circle" }
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},
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{
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// Use a thicker, 5 pixel line and 10 pixel
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// filled square markers.
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lineWidth:5,
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markerOptions: { style:"filledSquare", size:10 }
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}
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]
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}
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);
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});
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<!-- Additional plugins go here -->
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<script class="include" type="text/javascript" src="../plugins/jqplot.canvasTextRenderer.min.js"></script>
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<script class="include" type="text/javascript" src="../plugins/jqplot.canvasAxisLabelRenderer.min.js"></script>
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