The Zigzag Path of a Pseudo-Triangulation
The Zigzag Path of a Pseudo-Triangulation
复制标题
伪三角剖分的锯齿形路径
DOI:
10.1007/978-3-540-45078-8_33
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
I. Streinu
中科院分区:
文献类型:
--
作者:
O. Aichholzer;G. Rote;B. Speckmann;I. Streinu
We define the zigzag path of a pseudo-triangulation, a concept generalizing the path of a triangulation of a point set. The pseudo-triangulation zigzag path allows us to use divide-and-conquer type of approaches for suitable (i.e., decomposable) problems on pseudo-triangulations. For this we provide an algorithm that enumerates all pseudo-triangulation zigzag paths (of all pseudo-triangulations of a given point set with respect to a given line) inO(n2) time per path andO(n2) space, wherenis the number of points. We illustrate applications of our scheme which include a novel algorithm to count the number of pseudo-triangulations of a point set.