Tetrahedral Mesh Improvement, Algorithms and Experiments
Guoy, Damrong
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https://hdl.handle.net/2142/81580
Description
Title
Tetrahedral Mesh Improvement, Algorithms and Experiments
Author(s)
Guoy, Damrong
Issue Date
2001
Doctoral Committee Chair(s)
Edelsbrunner, Herbert
Department of Study
Computer Science
Discipline
Computer Science
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Computer Science
Language
eng
Abstract
The persistent appearance of slivers in large three-dimensional Delaunay meshes has been reported as early as 1985. They persist even after treatment with the Delaunay refinement algorithm. Cheng et al. proposed to remove slivers by assigning real weights to the points and change the Delaunay to the weighted Delaunay mesh. This is referred to as the sliver exudation algorithm. Their theoretical bound on the achieved minimum mesh quality is a constant that is positive but exceedingly small. We perform computational experiments to testify the practical effectiveness of sliver exudation.
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