ChartDirector Ver 4.1 (Perl 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

[Standalone Version] perldemo\multidepthpie.pl
#!/usr/bin/perl
use perlchartdir;

# The data for the pie chart
my $data = [72, 18, 15, 12];

# The labels for the pie chart
my $labels = ["Labor", "Machinery", "Facilities", "Computers"];

# The depths for the sectors
my $depths = [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
my $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 15 pts Times Bold Italic font and blue (AAAAFF) as background
# color
$c->addTitle("Project Cost Breakdown", "timesbi.ttf", 15)->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
$c->makeChart("multidepthpie.png")

[CGI Version] perldemo_cgi\multidepthpie.pl
#!/usr/bin/perl

# Include current script directory in the module path (needed on Microsoft IIS).
# This allows this script to work by copying ChartDirector to the same directory
# as the script (as an alternative to installation in Perl module directory)
use File::Basename;
use lib dirname($0);

use perlchartdir;

# The data for the pie chart
my $data = [72, 18, 15, 12];

# The labels for the pie chart
my $labels = ["Labor", "Machinery", "Facilities", "Computers"];

# The depths for the sectors
my $depths = [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
my $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 15 pts Times Bold Italic font and blue (AAAAFF) as background
# color
$c->addTitle("Project Cost Breakdown", "timesbi.ttf", 15)->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
binmode(STDOUT);
print "Content-type: image/png\n\n";
print $c->makeChart2($perlchartdir::PNG);