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Automatic Non-manifold Topology Recoveryand Geometry Noise Removal

Alleaume, Aurelien

Proceedings, 18th International Meshing Roundtable, Springer-Verlag, pp.267-279, October 25-28 2009


18th International Meshing Roundtable
Salt Lake City, UT, USA.
October 25-28, 2009

Distene SAS, Pàole Teratec-Bard 1, Domaine du Grand ru¥e 91680
Bruy`eres-le-Chatel, France

This paper presents an effective method for automatic topology recovery of non-manifold geometries. Mixing topology recovery and geometry noise detection/removal allowed us to achieve effectively the automation and robustness required by such methods. We developped our method on CAD boundary representation (BREP) geometries in the context of surface mesh generation, but it could also be directly applied to discrete STL or mesh geometries. Its reliability and efficiency has been validated on a variety of complex manifold and non-manifold CAD geometries.

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