Succinct representation of triangulations with a boundary

Research output: Contribution to journalConference articlepeer-review

Abstract

We consider the problem of designing succinct geometric data structures while maintaining efficient navigation operations. A data structure is said succinct if the asymptotic amount of space it uses matches the entropy of the class of structures represented. For the case of planar triangulations with a boundary we propose a succinct representation of the combinatorial information that improves to 2.175 bits per triangle the asymptotic amount of space required and that supports the navigation between adjacent triangles in constant time (as well as other standard operations). For triangulations with m faces of a surface with genus g, our representation requires asymptotically an extra amount of 36(g -1) Ig m bits (which is negligible as long as g ≪ m/1g m).

Original languageEnglish
Pages (from-to)134-145
Number of pages12
JournalLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3608
DOIs
Publication statusPublished - 1 Jan 2005
Event9th International Workshop on Algorithms and Data Structures, WADS 2005 - Waterloo, Canada
Duration: 15 Aug 200517 Aug 2005

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