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A Surface-Wrapping Algorithm with Hole Detection Based on the Heat Diffusion Equation

Juretic, Franjo and Norbert Putz

20th International Meshing Roundtable, Springer-Verlag, pp.405-417, October 23-26 2011


20th International Meshing Roundtable
Paris, France
October 23-26, 2011

AVL-AST d.o.o, Avenija Dubrovnik 10/III, Zagreb, Croatia, AVL GmbH, Alte Poststrasse 152, Graz, Austria

This paper presents a method for detecting holes during the surface wrapping process causing surface leaks into the volume parts that shall not be meshed. The method solves a heat diffusion equation, and the holes are detected as regions of high temperature gradients. It can detect both holes with open edges and semantic holes due to some missing parts. The sensitivity of the method is controlled via user-adjustable parameter representing the ratio between the volume that shall not be meshed and the area of the hole. The potential of the method is presented on complex engineering examples.

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