Nef_polyhedron_2<Extended_homogeneous>
Plane_map_2
vertices 10
halfedges 20
faces 3
0 { 0 1, 0, 1 0 -1  1 0 -1  0 1 }
1 { 0 15, 0, 1 0 -1  1 0 1  0 1 }
2 { 0 5, 1, 0 -70  0 -70  0 1 }
3 { 0 9, 1, 0 -70  0 70  0 1 }
4 { 0 11, 1, 0 0  0 0  0 1 }
5 { 0 8, 1, 0 0  0 70  0 1 }
6 { 0 17, 1, 0 70  0 -70  0 1 }
7 { 0 10, 1, 0 70  0 35  0 1 }
8 { 0 19, 0, 1 0 1  1 0 -1  0 1 }
9 { 0 14, 0, 1 0 1  1 0 1  0 1 }
0 { 1, 3, 18, 8, 2, 0 }
1 { 0, 19, 2, 0, 0, 0 }
2 { 3, 1, 14, 1, 0, 0 }
3 { 2, 15, 0, 0, 2, 0 }
4 { 5, 7, 16, 6, 1, 1 }
5 { 4, 17, 6, 2, 2, 1 }
6 { 7, 5, 8, 3, 2, 1 }
7 { 6, 9, 4, 2, 1, 1 }
8 { 9, 6, 13, 5, 2, 1 }
9 { 8, 12, 7, 3, 1, 1 }
10 { 11, 13, 17, 7, 2, 1 }
11 { 10, 16, 12, 4, 1, 1 }
12 { 13, 11, 9, 5, 1, 1 }
13 { 12, 8, 10, 4, 2, 1 }
14 { 15, 2, 19, 9, 0, 0 }
15 { 14, 18, 3, 1, 2, 0 }
16 { 17, 4, 11, 7, 1, 1 }
17 { 16, 10, 5, 6, 2, 1 }
18 { 19, 0, 15, 9, 2, 0 }
19 { 18, 14, 1, 8, 0, 0 }
0 { -1, 1 , , 0 }
1 { 7, , , 1 }
2 { 3, 5 , , 0 }