blocks2vf               Convertor from 3-Block Representation
                        Representation to Vertices-Faces
comb                    Sample Data: Comb Polygon
cube                    Sample Data: Simple Cube
fractal                 Sample Data: Fractal Polygon
pip2d                   Test for Point Containment in 2D Polygon
pip3d                   Test for Point Containment in 3D Polyhedron
spiral                  Sample Data: Spiral Polygon
vf2blocks               Convertor from Vertices-Faces Representation to
                        3-Block Representation
