Pie Chart with Legend (1)

This example demonstrates how to add a legend box to a pie chart. It also demonstrates alternative sector label format and rounded edge sector shading.

Add a legend box using BaseChart.addLegend.
Change the sector label format using PieChart.setLabelFormat.
Set rounded edge sector shading using PieChart.setSectorStyle.

perldemo\legendpie.pl

#!/usr/bin/perl

# The ChartDirector for Perl module is assumed to be in "../lib"
use File::Basename;
use lib (dirname($0)."/../lib") =~ /(.*)/;

use perlchartdir;

# The data for the pie chart
my $data = [25, 18, 15, 12, 8, 30, 35];

# The labels for the pie chart
my $labels = ["Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities", "Production"];

# Create a PieChart object of size 450 x 270 pixels
my $c = new PieChart(450, 270);

# Set the center of the pie at (150, 100) and the radius to 80 pixels
$c->setPieSize(150, 135, 100);

# add a legend box where the top left corner is at (330, 50)
$c->addLegend(330, 60);

# modify the sector label format to show percentages only
$c->setLabelFormat("{percent}%");

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

# Use rounded edge shading, with a 1 pixel white (FFFFFF) border
$c->setSectorStyle($perlchartdir::RoundedEdgeShading, 0xffffff, 1);

# Output the chart
$c->makeChart("legendpie.png");