symmdiff.nef

CGAL is a collaborative effort of several sites in Europe and Israel. The goal is to make the most i

Nef_polyhedron_2<Extended_homogeneous>
Plane_map_2
vertices 13
halfedges 30
faces 4
0 { 0 1, 0, 1 0 -1  1 0 -1  0 1 }
1 { 0 5, 0, 1 0 -1  1 0 1  0 1 }
2 { 0 7, 0, 0 -70  0 -70  0 1 }
3 { 0 11, 0, 0 -70  0 70  0 1 }
4 { 0 13, 0, 0 0  1 0 -1  0 1 }
5 { 0 17, 0, 0 0  0 -70  0 1 }
6 { 0 21, 0, 0 0  0 0  0 1 }
7 { 0 23, 0, 0 0  0 70  0 1 }
8 { 0 25, 0, 0 0  1 0 1  0 1 }
9 { 0 27, 1, 0 70  0 -70  0 1 }
10 { 0 20, 1, 0 70  0 35  0 1 }
11 { 0 29, 0, 1 0 1  1 0 -1  0 1 }
12 { 0 24, 0, 1 0 1  1 0 1  0 1 }
0 { 1, 3, 14, 4, 1, 0 }
1 { 0, 13, 2, 0, 0, 0 }
2 { 3, 1, 4, 1, 0, 0 }
3 { 2, 5, 0, 0, 1, 0 }
4 { 5, 2, 24, 8, 0, 0 }
5 { 4, 22, 3, 1, 1, 0 }
6 { 7, 9, 18, 5, 2, 0 }
7 { 6, 14, 8, 2, 1, 0 }
8 { 9, 7, 10, 3, 1, 0 }
9 { 8, 11, 6, 2, 2, 0 }
10 { 11, 8, 22, 7, 1, 0 }
11 { 10, 23, 9, 3, 2, 0 }
12 { 13, 15, 28, 11, 2, 0 }
13 { 12, 29, 1, 4, 0, 0 }
14 { 15, 0, 7, 5, 1, 1 }
15 { 14, 17, 12, 4, 2, 1 }
16 { 17, 19, 26, 9, 3, 1 }
17 { 16, 27, 15, 5, 2, 1 }
18 { 19, 6, 20, 6, 2, 0 }
19 { 18, 21, 16, 5, 3, 0 }
20 { 21, 18, 27, 10, 2, 1 }
21 { 20, 26, 19, 6, 3, 1 }
22 { 23, 10, 5, 8, 1, 1 }
23 { 22, 25, 11, 7, 2, 1 }
24 { 25, 4, 29, 12, 0, 0 }
25 { 24, 28, 23, 8, 2, 0 }
26 { 27, 16, 21, 10, 3, 1 }
27 { 26, 20, 17, 9, 2, 1 }
28 { 29, 12, 25, 12, 2, 0 }
29 { 28, 24, 13, 11, 0, 0 }
0 { -1, 1 , , 0 }
1 { 3, , , 1 }
2 { 15, , , 0 }
3 { 19, , , 1 }