DELAUNAY STABILITY VIA PERTURBATIONS

Author:

BOISSONNAT JEAN-DANIEL1,DYER RAMSAY2,GHOSH ARIJIT3

Affiliation:

1. Geometrica, INRIA Sophia-Antipolis 2004, route des Lucioles BP 93, 06902 Sophia-Antipolis, France

2. Johann Bernoulli Institute for Mathematics and Computer Science, University of Groningen, Groningen, The Netherlands

3. Max-Planck Institut für Informatik Saarbrücken, Germany

Abstract

We present an algorithm that takes as input a finite point set in ℝm, and performs a perturbation that guarantees that the Delaunay triangulation of the resulting perturbed point set has quantifiable stability with respect to the metric and the point positions. There is also a guarantee on the quality of the simplices: they cannot be too at. The algorithm provides an alternative tool to the weighting or refinement methods to re-move poorly shaped simplices in Delaunay triangulations of arbitrary dimension, but in addition it provides a guarantee of stability for the resulting triangulation.

Publisher

World Scientific Pub Co Pte Lt

Subject

Applied Mathematics,Computational Mathematics,Computational Theory and Mathematics,Geometry and Topology,Theoretical Computer Science

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