3D Thinning using parallel 12 subiteration curve thinning by Palagyi

http://web.inf.u-szeged.hu/ipcg/publications/papers/PalagyiKuba_GMIP1999.pdf

using python

need python > 3 to compile

uses scipy, numpy and itertools packages

uses mayavi for 3D visulization (compatible with python 2.7)

palagyi3dthin.py is the heart of the algorithm

template expressions.py are python evaluated boolean expressions

thin3d templates.py is used to evaluate these expressions just once