Cylinder Bar Shape

This example demonstrates bars of cylinder shape.

ChartDirector supports bars in cylindrical or arbitrary polygonal shapes. The shape are specified using BarLayer.setBarShape or BarLayer.setBarShape2. In this example, the cylindrical shape is illustrated.

See Shape Specification on how built-in and custom shapes are defined in ChartDirector.

perldemo\cylinderbar.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 bar chart
my $data = [85, 156, 179.5, 211, 123];

# The labels for the bar chart
my $labels = ["Mon", "Tue", "Wed", "Thu", "Fri"];

# Create a XYChart object of size 400 x 240 pixels.
my $c = new XYChart(400, 240);

# Add a title to the chart using 14pt Times Bold Italic font
$c->addTitle("Weekly Server Load", "Times New Roman Bold Italic", 14);

# Set the plotarea at (45, 40) and of 300 x 160 pixels in size. Use alternating light grey (f8f8f8)
# / white (ffffff) background.
$c->setPlotArea(45, 40, 300, 160, 0xf8f8f8, 0xffffff);

# Add a multi-color bar chart layer
my $layer = $c->addBarLayer3($data);

# Set layer to 3D with 10 pixels 3D depth
$layer->set3D(10);

# Set bar shape to circular (cylinder)
$layer->setBarShape($perlchartdir::CircleShape);

# Set the labels on the x axis.
$c->xAxis()->setLabels($labels);

# Add a title to the y axis
$c->yAxis()->setTitle("MBytes");

# Add a title to the x axis
$c->xAxis()->setTitle("Work Week 25");

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