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Automatic Detail Reduction for Mesh Generation Applications

Tautges, Timothy J.

Proceedings, 10th International Meshing Roundtable, Sandia National Laboratories, pp.407-418, October 7-10 2001

IMR
PROCEEDINGS

10th International Meshing Roundtable
Newport Beach, California, U.S.A.
October 7-10, 2001

Sandia National Laboratories, Albuquerque, NM
University of Wisconsin-Madison, Madison, WI
Email: tjtautg@sandia.gov

Abstract
Increasing resolution in computational simulation is enabling the use of original CAD design models as the basis of mesh generation. Because of varying resolution requirements, geometric detail removal is a critical part of this process. Three classes of geometry details are classified by their removal method: direct detail removal seeks to remove details directly by compositing them with neighboring topology; blend removal removes blends by first partitioning blends then compositing the pieces with neighbors; bridge removal requires more advanced decomposition, and is not described here. Key capabilities for all these methods include defining a size measure, and detecting geometric details based on those. Blend detection is also described. Results are given for automatic detail reduction applied to several real parts.

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