acre - A cairo-based library for creating plots and charts.

Acre is a small C library for creating graphical plots and charts.

It's simple to use and generates quite lovely output, but only with
a very limited set of features, (currently just line charts with
axis ticks, axis labels, a title, and an optional legend).

Acre is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your
option) any later version. See COPYING for more details.