Ambient Isotopic Meshing of Implicit Algebraic Surface with Singularities

Details Ambient Isotopic Meshing of Implicit Algebraic Surface with Singularities Ambient Isotopic Meshing of Implicit Algebraic Surface with Singularities

2009-03-20

arxiv.org/abs/0903.3524v1

Computer Science

Computational Geometry

34 pages, 17 Postscript figures

Scientific paper

A complete method is proposed to compute a certified, or ambient isotopic, meshing for an implicit algebraic surface with singularities. By certified, we mean a meshing with correct topology and any given geometric precision. We propose a symbolic-numeric method to compute a certified meshing for the surface inside a box containing singularities and use a modified Plantinga-Vegter marching cube method to compute a certified meshing for the surface inside a box without singularities. Nontrivial examples are given to show the effectiveness of the algorithm. To our knowledge, this is the first method to compute a certified meshing for surfaces with singularities.

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