The zigzag path of a pseudo-triangulation

O. Aichholzer, G. Rote, B. Speckmann, I. Streinu

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

17 Citations (Scopus)
2 Downloads (Pure)

Abstract

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) in O(n 2) time per path and O(n 2) space, where n is 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.
Original languageEnglish
Title of host publicationAlgorithms and Data Structures (Proceedings 8th International Workshop, WADS 2003, Ottawa, Ontario, Canada, July 30-August 1, 2003)
EditorsF.K.H.A. Dehne, J.R. Sack, M.H.M. Smid
Place of PublicationBerlin
PublisherSpringer
Pages377-388
ISBN (Print)3-540-40545-3
DOIs
Publication statusPublished - 2003

Publication series

NameLecture Notes in Computer Science
Volume2748
ISSN (Print)0302-9743

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