CGAL 4.12.1 - 2D Segment Delaunay Graphs
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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.
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.
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. | |
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.