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CGAL 4.5.1 - 2D Segment Delaunay Graphs
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SegmentDelaunayGraphHierarchyVertexBase_2 Concept Reference
Concepts

Definition

The vertex of a segment Delaunay graph included in a segment Delaunay graph hierarchy has to provide some pointers to the corresponding vertices in the graphs of the next and preceeding levels. Therefore, the concept SegmentDelaunayGraphHierarchyVertexBase_2 refines the concept SegmentDelaunayGraphVertexBase_2, by adding two vertex handles to the correponding vertices for the next and previous level graphs.

Refines:
SegmentDelaunayGraphVertexBase_2

Types

SegmentDelaunayGraphHierarchyVertexBase_2 does not introduce any types in addition to those of SegmentDelaunayGraphVertexBase_2.

Creation

The SegmentDelaunayGraphHierarchyVertexBase_2 concept does not introduce any constructors in addition to those of the SegmentDelaunayGraphVertexBase_2 concept.

Has Models:
CGAL::Segment_Delaunay_graph_hierarchy_vertex_base_2<CGAL::Segment_Delaunay_graph_vertex_base_2<Gt,SSTag> >
See Also
SegmentDelaunayGraphDataStructure_2
SegmentDelaunayGraphVertexBase_2
CGAL::Segment_Delaunay_graph_hierarchy_2<Gt,DS>
CGAL::Triangulation_data_structure_2<Vb,Fb>
CGAL::Segment_Delaunay_graph_vertex_base_2<Gt,SSTag>
CGAL::Segment_Delaunay_graph_hierarchy_vertex_base_2<Vbb>

Operations

Vertex_handle up ()
 Returns a handle to the corresponding vertex of the next level segment Delaunay graph. More...
 
Vertex_handle down ()
 Returns a handle to the corresponding vertex of the previous level segment Delaunay graph. More...
 
void set_up (Vertex_handle u)
 Sets the handle for the vertex of the next level segment Delaunay graph.
 
void set_down (Vertex_handle d)
 Sets the handle for the vertex of the previous level segment Delaunay graph.
 

Member Function Documentation

Vertex_handle SegmentDelaunayGraphHierarchyVertexBase_2::down ( )

Returns a handle to the corresponding vertex of the previous level segment Delaunay graph.

If such a vertex does not exist Vertex_handle() is returned.

Vertex_handle SegmentDelaunayGraphHierarchyVertexBase_2::up ( )

Returns a handle to the corresponding vertex of the next level segment Delaunay graph.

If such a vertex does not exist Vertex_handle() is returned.