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Fast Delaunay Triangulation for Converging Point Relocation Sequences

Pedro Machado Manhães de Castro 1 Olivier Devillers 1
1 GEOMETRICA - Geometric computing
CRISAM - Inria Sophia Antipolis - Méditerranée , Inria Saclay - Ile de France
Abstract : This paper considers the problem of updating efficiently a Delaunay triangulation when vertices are moving under small perturbations. Its main contribution is a set of algorithms based on the concept of vertex tolerance. Experiments show that it is able to outperform the naive rebuilding algorithm in certain conditions. For instance, when points, in two dimensions, are relocated by Lloyd's iterations, our algorithm performs several times faster than rebuilding.
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Contributor : Pedro Machado Manhaes de Castro <>
Submitted on : Thursday, September 3, 2009 - 6:16:00 PM
Last modification on : Monday, December 14, 2020 - 4:46:30 PM
Long-term archiving on: : Tuesday, June 15, 2010 - 11:10:58 PM


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  • HAL Id : inria-00413351, version 1



Pedro Machado Manhães de Castro, Olivier Devillers. Fast Delaunay Triangulation for Converging Point Relocation Sequences. European Workshop on Computational Geometry, 2009, Bruxelles, Belgium. ⟨inria-00413351⟩



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