ChartDirector 6.0 (Perl Edition)

Icon Donut Chart




This example modifies the Icon Pie Chart example by using a semi-transparent donut instead of a pie, and using metallic background color.

Source Code Listing

[Standalone Version] perldemo\icondonut.pl
#!/usr/bin/perl

# In the sample code, 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 = [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 300 pixels
my $c = new PieChart(400, 300);

# Use the semi-transparent palette for this chart
$c->setColors($perlchartdir::transparentPalette);

# Set the background to metallic light blue (CCFFFF), with a black border and 1 pixel 3D border
# effect,
$c->setBackground(perlchartdir::metalColor(0xccccff), 0x000000, 1);

# Set donut center at (200, 175), and outer/inner radii as 100/50 pixels
$c->setDonutSize(200, 175, 100, 50);

# Add a title box using 15pt Times Bold Italic font and metallic blue (8888FF) background color
$c->addTitle("Weather Profile in Wonderland", "timesbi.ttf", 15)->setBackground(
    perlchartdir::metalColor(0x8888ff));

# 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("icondonut.png")

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

# In the sample code, 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 = [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 300 pixels
my $c = new PieChart(400, 300);

# Use the semi-transparent palette for this chart
$c->setColors($perlchartdir::transparentPalette);

# Set the background to metallic light blue (CCFFFF), with a black border and 1 pixel 3D border
# effect,
$c->setBackground(perlchartdir::metalColor(0xccccff), 0x000000, 1);

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

# Set donut center at (200, 175), and outer/inner radii as 100/50 pixels
$c->setDonutSize(200, 175, 100, 50);

# Add a title box using 15pt Times Bold Italic font and metallic blue (8888FF) background color
$c->addTitle("Weather Profile in Wonderland", "timesbi.ttf", 15)->setBackground(
    perlchartdir::metalColor(0x8888ff));

# 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);