#!/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;

# Get HTTP query parameters
use CGI;
my $query = new CGI;

# Determine the starting angle and direction based on input parameter
my $angle = 0;
my $clockwise = 1;
if ($query->param("img") ne "0") {
    $angle = 90;
    $clockwise = 0;
}

# 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 280 x 240 pixels
my $c = new PieChart(280, 240);

# Set the center of the pie at (140, 130) and the radius to 80 pixels
$c->setPieSize(140, 130, 80);

# Add a title to the pie to show the start angle and direction
if ($clockwise) {
    $c->addTitle("Start Angle = $angle degrees\nDirection = Clockwise");
} else {
    $c->addTitle("Start Angle = $angle degrees\nDirection = AntiClockwise");
}

# Set the pie start angle and direction
$c->setStartAngle($angle, $clockwise);

# Draw the pie in 3D
$c->set3D();

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

# Explode the 1st sector (index = 0)
$c->setExplode(0);

# Output the chart
binmode(STDOUT);
print "Content-type: image/png\n\n";
print $c->makeChart2($perlchartdir::PNG);