Reverse engineering for industrial-environment cad models

Rodrigo de Toledo (1) , Bruno Levy (2) , Jean-Claude Paul (3)

1 Tecgraf - Tecnologia em Computação Gráfica - Computer Graphics Technology Group
2 ALICE - Geometry and Lighting
3 CAD - Computer Aided Design

Industrial-environment CAD models are commonly represented by triangular meshes, which do not preserve original information about implicit surfaces used during design. The reverse-engineering algorithms presented in this paper focus on reconstructing implicit information, recovering original data. We propose two different approaches, a numerical one and an original topological approach. We explore specificities found in CAD meshes to achieve high effectiveness, reconstructing 90% of information from massive models (with millions of triangles) after few minutes of processing.

Mots clés: reverse engineering; CAD models; shape retrieval; surface recovery; model reconstruction; topological algorithms

Domaines: Ingénierie assistée par ordinateur

Rodrigo de Toledo, Bruno Levy, Jean-Claude Paul. Reverse engineering for industrial-environment cad models. International Symposium on Tools and Methods of Competitive Engineering, TMCE 2008, Apr 2008, Izmir, Turkey. ⟨inria-00202465⟩