ChartDirector 7.0 (PHP Edition)
Simple Rose Chart
Source Code Listing
<?php
require_once("../lib/phpchartdir.php");
# Data for the chart
$data = array(9.4, 1.8, 2.1, 2.3, 3.5, 7.7, 8.8, 6.1, 5.0, 3.1, 6.0, 4.3, 5.1, 2.6, 1.5, 2.2, 5.1,
4.3, 4.0, 9.0, 1.7, 8.8, 9.9, 9.5);
$angles = array(0, 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, 240, 255,
270, 285, 300, 315, 330, 345);
# Create a PolarChart object of size 460 x 460 pixels, with a silver background and a 1 pixel 3D
# border
$c = new PolarChart(460, 460, silverColor(), 0x000000, 1);
# Add a title to the chart at the top left corner using 15pt Arial Bold Italic font. Use white text
# on deep blue background.
$c->addTitle("Polar Vector Chart Demonstration", "Arial Bold Italic", 15, 0xffffff)->setBackground(
0x000080);
# Set plot area center at (230, 240) with radius 180 pixels and white background
$c->setPlotArea(230, 240, 180, 0xffffff);
# Set the grid style to circular grid
$c->setGridStyle(false);
# Set angular axis as 0 - 360, with a spoke every 30 units
$c->angularAxis->setLinearScale(0, 360, 30);
# Add sectors to the chart as sector zones
for($i = 0; $i < count($data); ++$i) {
$c->angularAxis->addZone($angles[$i], $angles[$i] + 15, 0, $data[$i], 0x33ff33, 0x008000);
}
# Add an Transparent invisible layer to ensure the axis is auto-scaled using the data
$c->addLineLayer($data, Transparent);
# Output the chart
$viewer = new WebChartViewer("chart1");
$viewer->setChart($c, SVG);
?>
<!DOCTYPE html>
<html>
<head>
<title>Simple Rose 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 Rose 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>