SYNOPSIS
[% USE GD;
# create an image
img = GD.image(width, height)
# allocate some colors
black = img.colorAllocate(0, 0, 0);
red = img.colorAllocate(255, 0, 0);
blue = img.colorAllocate(0, 0, 255);
# draw a blue oval
img.arc(50, 50, 95, 75, 0, 360, blue);
# fill it with red
img.fill(50, 50, red);
# output binary image in PNG format
img.png | redirect('example.png');
%]
DESCRIPTION
The Template-GD distribution provides a number of Template Toolkit plugin modules to interface with Lincoln Stein's GD modules. These in turn provide an interface to Thomas Boutell's GD graphics library.These plugins were distributed as part of the Template Toolkit until version 2.15 released in February 2006. At this time they were extracted into this separate distribution.
For general information on the Template Toolkit see the documentation for the Template module or <http://template-toolkit.org>. For information on using plugins, see Template::Plugins and ``USE'' in Template::Manual::Directives.
METHODS
The GD plugin module provides a number of methods to create various other GD objects. But first you need to load the GD plugin.
[% USE GD %]
Then you can call the following objects against it.
image(width, height)
Creates a new GD::Image object.
[% image = GD.image(100, 200) %]
polygon()
Creates a new GD::Polygon object.
[% poly = GD.polygon;
poly.addPt(50,0);
poly.addPt(99,99);
poly.addPt(0,99);
image.filledPolygon(poly, blue);
%]
text()
Creates a new GD::Text object.
[% text = GD.text;
text.set_text('Some text');
%]
GD PLUGINS
These are the GD plugins provided in this distribution.Template::Plugin::GD
Front-end module to the GD plugin collection.
Template::Plugin::GD::Image
Plugin interface providing direct access to the GD::Image module.
[% USE image = GD.Image %]
Template::Plugin::GD::Polygon
Plugin interface providing direct access to the GD::Polygon module.
[% USE poly = GD.Polygon;
poly.addPt(50,0);
poly.addPt(99,99);
poly.addPt(0,99);
image.filledPolygon(poly, blue);
%]
Template::Plugin::GD::Text
Plugin interface providing direct access to the GD::Text module.
[% USE text = GD.Text;
text.set_text('Some text');
%]
Template::Plugin::GD::Text::Align
Plugin interface to the GD::Text::Align module for creating aligned
text.
Template::Plugin::GD::Text::Wrap
Plugin interface to the GD::Text::Wrap module for creating wrapped
text.
Template::Plugin::GD::Graph::area
Plugin interface to the GD::Graph::area module for creating area graphics
with axes and legends.
Template::Plugin::GD::Graph::bars3d
Plugin interface to the GD::Graph::bars3d module for creating 3D bar
graphs with axes and legends.
Template::Plugin::GD::Graph::bars
Plugin interface to the GD::Graph::bars module for creating bar graphs
with axes and legends.
Template::Plugin::GD::Graph::lines3d
Plugin interface to the GD::Graph::lines3d module for creating 3D line
graphs with axes and legends.
Template::Plugin::GD::Graph::lines
Plugin interface to the GD::Graph::lines module for creating line
graphs with axes and legends.
Template::Plugin::GD::Graph::linespoints
Plugin interface to the GD::Graph::linespoints module for creating
line/point graphs with axes and legends
Template::Plugin::GD::Graph::mixed
Plugin interface to the GD::Graph::mixed module for creating mixed
graphs with axes and legends.
Template::Plugin::GD::Graph::pie3d
Plugin interface to the GD::Graph::pie3d module for creating 3D pie
charts with legends.
Template::Plugin::GD::Graph::pie
Plugin interface to the GD::Graph::pie module for creating pie
charts with legends.
Template::Plugin::GD::Graph::points
Plugin interface to the GD::Graph::points module for creating point
graphs with axes and legends
Template::Plugin::GD::Constants
Provides access to various GD constants.
[% USE gdc = GD.Constants;
font = gdc.gdLargeFont
%]