A faster circle-sweep Delaunay triangulation algorithm

被引:13
|
作者
Biniaz, Ahmad [1 ]
Dastghaibyfard, Gholamhossein [2 ]
机构
[1] Islamic Azad Univ, Lamerd Branch, Dept Comp Engn, Lamerd, Iran
[2] Shiraz Univ, Dept Comp Sci & Engn, Shiraz, Iran
关键词
Computational geometry; Delaunay triangulation; In-circle test; Recursive edge-flipping; Sweep-line; Sweep-circle; INCREMENTAL CONSTRUCTION; MESH; INTERPOLATION; TERRAINS;
D O I
10.1016/j.advengsoft.2011.09.003
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
This paper presents a new way to compute the Delaunay triangulation of a planar set P of n points, using sweep-circle technique combined with the standard recursive edge-flipping. The algorithm sweeps the plane by an increasing circle whose center is a fixed point in the convex hull of P. Empirical results and comparisons show that it reduces the number of in-circle tests and edge-flips, and it is efficient in practice. (C) 2011 Elsevier Ltd. All rights reserved.
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页码:1 / 13
页数:13
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