The Anti-Grain Geometry Project
A high quality rendering engine for C++
http://antigrain.com

Anti-Grain Geometry - Version 2.3 
Copyright (C) 2002-2005 Maxim Shemanarev (McSeem) 

Permission to copy, use, modify, sell and distribute this software 
is granted provided this copyright notice appears in all copies. 
This software is provided "as is" without express or implied
warranty, and with no claim as to its suitability for any purpose.