ChartDirector 6.0 (Perl Edition)

Icon Pie Chart (1)




This example demonstrates using CDML and Parameter Substitution and Formatting to include icons in sector labels. It also demonstrates gradient background color, glass shading effect for the title and rounded corners for the chart frame.

Source Code Listing

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

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

# The depths for the sectors
my $depths = [30, 20, 10, 10];

# The labels for the pie chart
my $labels = ["Sunny", "Cloudy", "Rainy", "Snowy"];

# The icons for the sectors
my $icons = ["sun.png", "cloud.png", "rain.png", "snowy.png"];

# Create a PieChart object of size 400 x 310 pixels, with a blue (CCCCFF) vertical metal gradient
# background, black border, 1 pixel 3D border effect and rounded corners
my $c = new PieChart(400, 310, perlchartdir::metalColor(0xccccff, 0), 0x000000, 1);
$c->setRoundedFrame();

# Set the center of the pie at (200, 180) and the radius to 100 pixels
$c->setPieSize(200, 180, 100);

# Add a title box using 15pt Times Bold Italic font, on a blue (CCCCFF) background with glass effect
$c->addTitle("Weather Profile in Wonderland", "timesbi.ttf", 15)->setBackground(0xccccff, 0x000000,
    perlchartdir::glassEffect());

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

# Add icons to the chart as a custom field
$c->addExtraField($icons);

# Configure the sector labels using CDML to include the icon images
$c->setLabelFormat(
    "<*block,valign=absmiddle*><*img={field0}*> <*block*>{label}\n{percent}%<*/*><*/*>");

# 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("iconpie.png")

[CGI Version] perldemo_cgi\iconpie.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 depths for the sectors
my $depths = [30, 20, 10, 10];

# The labels for the pie chart
my $labels = ["Sunny", "Cloudy", "Rainy", "Snowy"];

# The icons for the sectors
my $icons = ["sun.png", "cloud.png", "rain.png", "snowy.png"];

# Create a PieChart object of size 400 x 310 pixels, with a blue (CCCCFF) vertical metal gradient
# background, black border, 1 pixel 3D border effect and rounded corners
my $c = new PieChart(400, 310, perlchartdir::metalColor(0xccccff, 0), 0x000000, 1);
$c->setRoundedFrame();

#Set directory for loading images to current script directory
#Need when running under Microsoft IIS
$c->setSearchPath(dirname($0));

# Set the center of the pie at (200, 180) and the radius to 100 pixels
$c->setPieSize(200, 180, 100);

# Add a title box using 15pt Times Bold Italic font, on a blue (CCCCFF) background with glass effect
$c->addTitle("Weather Profile in Wonderland", "timesbi.ttf", 15)->setBackground(0xccccff, 0x000000,
    perlchartdir::glassEffect());

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

# Add icons to the chart as a custom field
$c->addExtraField($icons);

# Configure the sector labels using CDML to include the icon images
$c->setLabelFormat(
    "<*block,valign=absmiddle*><*img={field0}*> <*block*>{label}\n{percent}%<*/*><*/*>");

# 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);