▼NCGAL | |
CConstrained_Delaunay_triangulation_2 | A constrained Delaunay triangulation is a triangulation with constrained edges which tries to be as much Delaunay as possible |
CConstrained_triangulation_2 | A constrained triangulation is a triangulation of a set of points which has to include among its edges a given set of polylines joining the points |
CConstrained_triangulation_face_base_2 | The class Constrained_triangulation_face_base_2 is the default model for the concept ConstrainedTriangulationFaceBase_2 to be used as base face class of constrained triangulations |
▼CConstrained_triangulation_plus_2 | The class Constrained_triangulation_plus_2<Tr> provides a constrained triangulation with an additional data structure that keeps track of the input constraints and of their refinement in the triangulation |
CContext | A context enables the access to the vertices of a constraint that pass through a subconstraint |
CDelaunay_triangulation_2 | The class Delaunay_triangulation_2 is designed to represent the Delaunay triangulation of a set of points in a plane |
CExact_intersections_tag | Intersection tag for constrained triangulations, if exact predicates and exact constructions are provided |
CExact_predicates_tag | Intersection tag for constrained triangulations, if the geometric traits provides exact predicates but approximate constructions |
CNo_constraint_intersection_requiring_constructions_tag | Intersection tag for constrained triangulations, when input constraints are not allowed to intersect except if the intersection does not require any new point construction |
CNo_constraint_intersection_tag | Intersection tag for constrained triangulations, when input constraints are not allowed to intersect except at a single common extremity |
CNo_intersection_tag | Intersection tag for constrained triangulations, when input constraints do not intersect |
CRegular_triangulation_2 | The class Regular_triangulation_2 is designed to maintain the regular triangulation of a set of weighted points |
CRegular_triangulation_face_base_2 | The class Regular_triangulation_face_base_2 is a model of the concept RegularTriangulationFaceBase_2 |
CRegular_triangulation_vertex_base_2 | The class Regular_triangulation_vertex_base_2 is a model of the concept RegularTriangulationVertexBase_2 |
CTriangulation_2 | The class Triangulation_2 is the basic class designed to handle triangulations of set of points \( { A}\) in the plane |
CTriangulation_cw_ccw_2 | The class Triangulation_cw_ccw_2 offers two functions int cw(int i) and int ccw(int i) which, given the index of a vertex in a face, compute the index of the next vertex of the same face in clockwise or counterclockwise order |
CTriangulation_face_base_2 | The class Triangulation_face_base_2 is a model for the concept TriangulationFaceBase_2 |
CTriangulation_face_base_with_info_2 | The class Triangulation_face_base_with_info_2 is a model of the concept TriangulationFaceBase_2 to be plugged into the triangulation data structure of a triangulation class |
CTriangulation_hierarchy_2 | The class Triangulation_hierarchy_2 implements a triangulation augmented with a data structure which allows fast point location queries |
CTriangulation_hierarchy_vertex_base_2 | The class Triangulation_hierarchy_vertex_base_2 is designed to be used as a vertex base class of a triangulation plugged into a Triangulation_hierarchy_2<Tr> |
CTriangulation_vertex_base_2 | The class Triangulation_vertex_base_2 is the default model for the concept TriangulationVertexBase_2 |
CTriangulation_vertex_base_with_info_2 | The class Triangulation_vertex_base_with_info_2 is designed to be used as a base vertex class of a triangulation |
CConstrainedDelaunayTriangulationTraits_2 | 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<Traits,Tds,Itag> 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 |
CConstrainedTriangulationFaceBase_2 | In a constrained triangulation, the information about constrained edges is stored in the faces of the triangulation. The base face of a constrained triangulation has to be a model of the concept ConstrainedTriangulationFaceBase_2 which refines the concept TriangulationFaceBase_2 providing functionalities to deal with constraints |
CConstrainedTriangulationTraits_2 | The concept ConstrainedTriangulationTraits_2 defines the requirements for the geometric traits class of a constrained triangulation ( CGAL::Constrained_triangulation_2<Traits,Tds,Itag> ) that supports intersections of input constraints (i. e. when the template parameter Itag is instantiated by one of the tag classes CGAL::Exact_intersections_tag or CGAL::Exact_predicates_tag ). This concept refines the concept TriangulationTraits_2 , adding requirements for function objects to compute the intersection points of two constraints. When CGAL::Exact_predicates_tag is used, the traits class is also required to provide additional types to compute the squared distance between a point and a line |
CDelaunayTriangulationTraits_2 | In addition to the requirements of the concept TriangulationTraits_2 the concept DelaunayTriangulationTraits_2 requires a predicate to check the empty circle property. The corresponding predicate type is called type Side_of_oriented_circle_2 |
CRegularTriangulationFaceBase_2 | The regular triangulation of a set of weighted points does not necessarily have one vertex for each of the input points. Some of the input weighted points have no cell in the dual power diagrams and therefore do not correspond to a vertex of the regular triangulation. Those weighted points are said to be hidden points. A point which is hidden at a given time may appear later as a vertex of the regular triangulation upon removal on some other weighted point. Therefore, hidden points have to be stored somewhere. The regular triangulation store those hidden points in special vertices called hidden vertices |
CRegularTriangulationTraits_2 | The concept RegularTriangulationTraits_2 describes the requirements for the traits class of regular triangulations. It refines the concept TriangulationTraits_2 requiring the type CGAL::Weighted_point_2 and the power test predicate on those weighted points. A weighted point is basically a point augmented with a scalar weight. It can be seen as a circle when the weight is interpreted as a square radius. The power test on weighted points is the fundamental test to build regular triangulations as the side_of_oriented_circle test is the fundamental test of Delaunay triangulations |
CRegularTriangulationVertexBase_2 | The regular triangulation of a set of weighted points does not necessarily have one vertex for each of the input points. Some of the input weighted points have no cell in the dual power diagrams and therefore do not correspond to a vertex of the regular triangulation. Those weighted point are said to be hidden points. A point which is hidden at a given time may appear later as a vertex of the regular triangulation upon removal on some other weighted point. Therefore, hidden points have to be stored somewhere. The regular triangulation store those hidden points in special vertices called hidden vertices |
CTriangulationFaceBase_2 | The concept TriangulationFaceBase_2 describes the requirements for the base face class of a triangulation data structure that is itself plugged into a basic triangulation or a Delaunay triangulation |
CTriangulationHierarchyVertexBase_2 | The vertex of a triangulation included in a triangulation hierarchy has to provide some pointers to the corresponding vertices in the triangulations of the next and preceding levels. Therefore, the concept TriangulationHierarchyVertexBase_2 refines the concept TriangulationVertexBase_2 , adding handles to the corresponding vertices in the next and previous level triangulations |
CTriangulationTraits_2 | |
CTriangulationVertexBase_2 | The concept TriangulationVertexBase_2 describes the requirements for the vertex base class of a triangulation data structure to be plugged in a basic, Delaunay or constrained triangulations |
CTriangulationVertexBaseWithInfo_2 | A type model of this concept can be used as vertex base by a triangulation and provides an additional information storage |