From: An ordered topological representation of 3D triangular mesh facial surface: concept and applications
Orientation | Sequence |
---|---|
12 | an + 1=a n + 3, a1=3 |
1 | an + 1 = a n + 4, a1 = 5 (dark facets), a1 = 4 (white facets) |
3 | an + 1=a n + 6, a1=5,a1=6 (white facets) |
5 | an + 1=a n + 8, a1=9,a1=8 (white facets) |
6 | an + 1=a n + 9, a1=9 |
7 | an + 1=a n + 10, a1=9,a1=10 (white facets) |
9 | a n = 1 (dark facet), an + 1 = a n + 12, a1 = 12 (white facets) |