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