At the base level (see Section Software Design), a face stores handles to its four vertices and to its four neighbor faces. The vertices and neighbors are indexed 0, 1 and 2. Neighbor i lies opposite to vertex i.
- Refines:
- TriangulationFaceBase_2
- Has Models:
- CGAL::Periodic_2_triangulation_face_base_2
- See Also
TriangulationDataStructure_2 -
TriangulationFaceBase_2
-
Periodic_2TriangulationVertexBase_2
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| int | offset (int i) const |
| | Returns the offset of vertex i. More...
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bool | has_zero_offsets () const |
| | Returns true if the offset of vertex i is zero for i∈{0,1,2}.
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void | set_offsets (int off0, int off1, int off2) |
| | Sets the vertex offsets according to off0 to off2.
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| int Periodic_2TriangulationFaceBase_2::offset |
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int |
i) | |
const |
Returns the offset of vertex i.
- Precondition
- i∈{0,1,2}.
1.8.4 
