An algorithm for constructing the convex hull of a set of spheres in dimension d

被引:12
|
作者
Boissonnat, JD
Cerezo, A
Devillers, O
Duquesne, J
Yvinec, M
机构
[1] INRIA,F-06561 VALBONNE,FRANCE
[2] UNIV NICE,F-06034 NICE,FRANCE
[3] CNRS,URA 1376,LAB 13S,F-06560 VALBONNE,FRANCE
来源
关键词
computational geometry; convex hull; spheres;
D O I
10.1016/0925-7721(95)00024-0
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We present an algorithm which computes the convex hull of a set of it spheres in dimension d in time O(n([d/2]) + n log n). It is worst-case optimal in three dimensions and in even dimensions. The same method can also be used to compute the convex hull of a set of n homothetic convex objects of E(d). If the complexity of each object is constant, the time needed in the worst case is O(n([d/2]) + n log n).
引用
收藏
页码:123 / 130
页数:8
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