ChartDirector 6.1 (PHP Edition)

Multi-Depth Pie Chart




This example demonstrates a 3D pie chart where sectors have different 3D heights.

Instead of using PieChart.set3D to set a single 3D depth for all sectors, in this example, PieChart.set3D2 is used to set different depths for the sectors with an array of integers.

Source Code Listing

[File: phpdemo/multidepthpie.php]
<?php
require_once("../lib/phpchartdir.php");

# The data for the pie chart
$data = array(72, 18, 15, 12);

# The labels for the pie chart
$labels = array("Labor", "Machinery", "Facilities", "Computers");

# The depths for the sectors
$depths = array(30, 20, 10, 10);

# Create a PieChart object of size 360 x 300 pixels, with a light blue (DDDDFF) background and a 1
# pixel 3D border
$c = new PieChart(360, 300, 0xddddff, -1, 1);

# Set the center of the pie at (180, 175) and the radius to 100 pixels
$c->setPieSize(180, 175, 100);

# Add a title box using 15pt Times Bold Italic font and blue (AAAAFF) as background color
$textBoxObj = $c->addTitle("Project Cost Breakdown", "timesbi.ttf", 15);
$textBoxObj->setBackground(0xaaaaff);

# Set the pie data and the pie labels
$c->setData($data, $labels);

# Draw the pie in 3D with variable 3D depths
$c->set3D2($depths);

# Set the start angle to 225 degrees may improve layout when the depths of the sector are sorted in
# descending order, because it ensures the tallest sector is at the back.
$c->setStartAngle(225);

# Output the chart
header("Content-type: image/png");
print($c->makeChart2(PNG));
?>