2 vertices of polyhedron
0 extreme rays of recession cone
2 support hyperplanes of polyhedron (homogenized)

embedding dimension = 3
affine dimension of the polyhedron = 2 (maximal)
rank of recession monoid = 1
dimension of maximal subspace = 1

dehomogenization:
0 0 1 

grading:
1 0 0 


***********************************************************************

2 vertices of polyhedron:
 -1 0 2
  3 0 2

0 extreme rays of recession cone:

1 basis elements of maximal subspace:
 0 1 0

2 support hyperplanes of polyhedron (homogenized):
 -2 0 3
  2 0 1

