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).