Automatic non-manifold topology recovery and geometry noise removal

Abstract

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.