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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


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

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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