3
0 0 0 1 -1 2 0
0 -1 2 0 -1 0 -1
0 -1 0 -1 -1 -1 0
0
4
0 -1 1 0 -1 0 0
0 -1 0 0 -1 -1 0
0 -1 -1 0 0 0 1
0 0 0 1 -1 1 0
0
# BEGIN ARRANGEMENT
# number_of_vertices
6
# number_of_edges
7
# number_of_faces
3
# BEGIN VERTICES
0 4 1 -1 0 -1 2
17
0 4 1 -1 0 0 2
12
4 4 1 -1 -1 0 0
4
4 3 1 0 0 1 3
3
4 4 1 -1 2 0 0
18
4 4 1 -1 1 0 0
13
# END VERTICES
# BEGIN EDGES
2 0 1 1 -1 0 -1 2 -1 -1 0 0 -1 1 1 1 0 0
16
16
1 2 0 1 -1 0 0 2 -1 -1 0 0 0 0 1 1 0 0
11
11
3 2 1 1 -1 -1 0 0 0 0 1 3 -1 1 0 1 1 0
11
11
4 3 0 1 0 0 1 3 -1 2 0 0 -2 -1 0 0 1 0
16
16
5 3 0 1 0 0 1 3 -1 1 0 0 -1 -1 0 0 1 0
11
11
4 0 0 1 -1 2 0 0 -1 0 -1 2 -2 -1 2 1 0 0
16
16
5 1 0 1 -1 1 0 0 -1 0 0 2 0 0 1 1 0 0
11
11
# END EDGES
# BEGIN FACES
# BEGIN FACE
0 1
# number_of_outer_ccbs
0
# number_of_inner_ccbs
1
# halfedges_on_inner_ccb
4
12 2 5 9
# number_of_isolated_vertices
0
14
# END FACE
# BEGIN FACE
0 1
# number_of_outer_ccbs
1
# halfedges_on_outer_ccb
4
11 6 4 0
# number_of_inner_ccbs
0
# number_of_isolated_vertices
0
23
# END FACE
# BEGIN FACE
0 1
# number_of_outer_ccbs
1
# halfedges_on_outer_ccb
6
13 8 7 10 1 3
# number_of_inner_ccbs
0
# number_of_isolated_vertices
0
23
# END FACE
# END FACES
# END ARRANGEMENT
