REVERSE ENGINEERING FOR INDUSTRIAL-ENVIRONMENT CAD MODELS Rodrigo de Toledo

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