The Geodesic Farthest-Point Voronoi Diagram in a Simple Polygon

被引:2
|
作者
Oh, Eunjin [1 ]
Barba, Luis [2 ]
Ahn, Hee-Kap [1 ]
机构
[1] Pohang Univ Sci & Technol, Pohang, South Korea
[2] Swiss Fed Inst Technol, Dept Comp Sci, Zurich, Switzerland
关键词
Farthest-point Voronoi diagram; Simple polygon; Geodesic metric; LINEAR-TIME ALGORITHM;
D O I
10.1007/s00453-019-00651-z
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
Given a set of point sites in a simple polygon, the geodesic farthest-point Voronoi diagram partitions the polygon into cells, at most one cell per site, such that every point in a cell has the same farthest site with respect to the geodesic metric. We present an O(nloglogn+mlogm)-time algorithm to compute the geodesic farthest-point Voronoi diagram of m point sites in a simple n-gon. This improves the previously best known algorithm by Aronov et al. (Discrete Comput Geom 9(3):217-255, 1993). In the case that all point sites are on the boundary of the simple polygon, we can compute the geodesic farthest-point Voronoi diagram in O((n+m)loglogn) time.
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页码:1434 / 1473
页数:40
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