to link openGL from gcc on linux: gcc code.c -lGL -lGLU -lglut
 (apt-get install libopengl-... libglut3-...)

polytope > $p = new Polytope;
polytope > $p->POINTS=<<".";
polytope (2)> 1 -1 -1 1
polytope (3)> 1 1 1 1
polytope (4)> 1 1 -1 1
polytope (5)> 1 -1 1 1
polytope (6)> 1 -3 3 0
polytope (7)> 1 3 -3 0
polytope (8)> 1 2 2 0
polytope (9)> 1 -2 -2 0
polytope (10)> .