/*! \ingroup PkgTriangulation2Concepts \cgalConcept The concept `ConstrainedDelaunayTriangulationTraits_2` defines the requirements for the geometric traits class of a constrained Delaunay triangulation that supports intersections of input constraints. This is the case when the template parameter `Itag` of `CGAL::Constrained_Delaunay_triangulation_2` is instantiated by one of the tag classes `CGAL::Exact_intersections_tag` or `CGAL::Exact_predicates_tag`. The concept `ConstrainedDelaunayTriangulationTraits_2` refines both the concept `DelaunayTriangulationTraits_2` and the concept `ConstrainedTriangulationTraits_2`. \cgalRefines{DelaunayTriangulationTraits_2,ConstrainedTriangulationTraits_2} \cgalHasModelsBegin \cgalHasModelsBare{All models of the \cgal concept `Kernel`} \cgalHasModels{CGAL::Projection_traits_xy_3} \cgalHasModels{CGAL::Projection_traits_yz_3} \cgalHasModels{CGAL::Projection_traits_xz_3} \cgalHasModelsEnd \sa `TriangulationTraits_2` \sa `ConstrainedTriangulationTraits_2` \sa `CGAL::Constrained_triangulation_2` \sa `CGAL::Constrained_Delaunay_triangulation_2` */ class ConstrainedDelaunayTriangulationTraits_2 { public: }; /* end ConstrainedDelaunayTriangulationTraits_2 */