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CGAL 4.7 - 2D Periodic Triangulations
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Periodic_2TriangulationTraits_2 and
Periodic_2DelaunayTriangulationTraits_2 if the template parameter Traits is a model of the DelaunayTriangulationTraits_2 concept.
Periodic_2TriangulationVertexBase_2 Handle which basically offers the two dereference operators and ->. The iterators and circulators are all bidirectional and non-mutable. The circulators and iterators are convertible to handles with the same value type, so that whenever a handle appear in the parameter list of a function, an appropriate iterator or circulator can be passed as well. Traits. Periodic_2_triangulation_traits_2 provides exact predicates and exact constructions if Traits does. It provides exact predicates but not exact constructions if Filtered_kernel<CK> with CK an inexact kernel is used as its first template parameter. Using Exact_predicates_inexact_constructions_kernel as Traits provides fast and exact predicates and not exact constructions, using Exact_predicates_exact_constructions_kernel provides fast and exact predicates and exact constructions. The latter is recommended if the dual constructions and constructions of points, segments, triangles, and tetrahedra are used.