ON SORTING TRIANGLES IN A DELAUNAY TESSELLATION

被引:13
作者
DEFLORIANI, L [1 ]
FALCIDIENO, B [1 ]
NAGY, G [1 ]
PIENOVI, C [1 ]
机构
[1] RENSSELAER POLYTECH INST,DEPT ELECT COMP & SYST ENGN,TROY,NY 12180
关键词
DELAUNAY TRIANGULATION; SORTING; VISIBILITY;
D O I
10.1007/BF01759057
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
In a two-dimensional Delaunay-triangulated domain, there exists a partial ordering of the triangles (with respect to a vertex) that is consistent with the two-dimensional visibility of the triangles from that vertex. An equivalent statement is that a polygon that is star-shaped with respect to a given vertex can be extended, one triangle at a time, until it includes the entire domain. Arbitrary planar triangulations do not possess this useful property which allows incremental processing of the triangles.
引用
收藏
页码:522 / 532
页数:11
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