This example demonstrates the basic steps in creating radar charts.
[File: phpdemo/simpleradar.php]
<?php
require_once("../lib/phpchartdir.php");
# The data for the chart
$data = array(90, 60, 65, 75, 40);
# The labels for the chart
$labels = array("Speed", "Reliability", "Comfort", "Safety", "Efficiency");
# Create a PolarChart object of size 450 x 350 pixels
$c = new PolarChart(450, 350);
# Set center of plot area at (225, 185) with radius 150 pixels
$c->setPlotArea(225, 185, 150);
# Add an area layer to the polar chart
$c->addAreaLayer($data, 0x9999ff);
# Set the labels to the angular axis as spokes
$c->angularAxis->setLabels($labels);
# Output the chart
$viewer = new WebChartViewer("chart1");
$viewer->setChart($c, SVG);
# Include tool tip for the chart
$viewer->setImageMap($c->getHTMLImageMap("", "", "title='{label}: score = {value}'"));
?>
<!DOCTYPE html>
<html>
<head>
<title>Simple Radar Chart</title>
<!-- Include ChartDirector Javascript Library to support chart interactions -->
<script type="text/javascript" src="cdjcv.js"></script>
</head>
<body style="margin:5px 0px 0px 5px">
<div style="font:bold 18pt verdana;">
Simple Radar Chart
</div>
<hr style="border:solid 1px #000080; background:#000080" />
<div style="font:10pt verdana; margin-bottom:1.5em">
<a href="viewsource.php?file=<?=basename(__FILE__)?>">View Chart Source Code</a>
</div>
<!-- ****** Here is the chart image ****** -->
<?php echo $viewer->renderHTML(); ?>
</body>
</html>
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