PLcairo is a set of Prolog bindings for the cairo graphics library. PLcairo provides the Prolog developer with an API to 2D vector-graphics that can be rendered on multiple output devices. PLcairo supports the following backends: Gtk, image buffers, PostScript, PDF, SVG.

A number of short example programs exist in the plcairo/examples directory highlighting some of the capabilities of PLcairo.



Installation
============

PLcairo has the following requirements:

* SWI-Prolog [1]
* PLGI [2]
* cairo >= 1.12.0 [3]
* GObject Introspection >= 1.40 [4]
* pkg-config [5]

The easiest way to install PLcairo is by using SWI-Prolog's package manager:

	?- pack_install(plcairo).

PLcairo can also be compiled and installed directly from sources in the following manner:

	% cd plcairo-$VERSION
	% autoconf
	% ./configure
	% make
	% make install

[1] http://www.swi-prolog.org/
[2] https://github.com/keriharris/plgi
[3] http://cairographics.org/
[4] https://wiki.gnome.org/Projects/GObjectIntrospection
[5] http://www.freedesktop.org/wiki/Software/pkg-config/



License
=======
PLcairo is free software and is available to be redistributed and/or modified under the terms of the GNU Lesser General Public License version 2.1 (LGPLv2.1).