Faster circle packing with application to nonobtuse triangulation

被引:13
|
作者
Eppstein, D [1 ]
机构
[1] UNIV CALIF IRVINE,DEPT INFORMAT & COMP SCI,IRVINE,CA 92717
关键词
circle packing; nonobtuse triangulation; mesh generation;
D O I
10.1142/S0218195997000296
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
We show how to pack a non-simple polygon with O(n) tangent circles, so that the union of the polygon boundary components and circles is connected, in total time O(nlogn). This improves a previous O(nlog(2) n) bound. By combining this with methods of Bern, Mitchell, and Ruppert we can extend this to a circle packing in which each portion of the polygon outside the circles is adjacent to at most four circles or boundary edges, and as a consequence we can triangulate the polygon with right and acute triangles, using O (n) Steiner points, again in the same O (n log n) time bound.
引用
收藏
页码:485 / 491
页数:7
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