ChartDirector 7.0 (PHP Edition)

Simple Radar Chart




This example demonstrates the basic steps in creating radar charts.

Source Code Listing

[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>