Converting Hybrid Wire-frames to B-rep Models

Abstract : Solid reconstruction from engineering drawings is one of the efficient technologies to product solid models. The B-rep oriented approach provides a practical way for reconstructing a wide range of objects. However, its major limitation is the computational complexity involved in the search for all valid faces from the intermediate wire-frame, especially for objects with complicated face topologies. In previous work, we presented a hint-based algorithm to recognize quadric surfaces from orthographic views and generate a hybrid wire-frame as the intermediate model of our B-rep oriented method. As a key stage in the process of solid reconstructing, we propose an algorithm to convert the hybrid wire-frame to the final B-rep model by extracting all the rest faces of planes based on graph theory. The entities lying on the same planar surface are first collected in a plane graph. After all the cycles are traced in a simplified edge-adjacency matrix of the graph, the face loops of the plane are formed by testing loop containment and assigning loop directions. Finally, the B-rep model is constructed by sewing all the plane faces based on the M¨obius rule. The method can efficiently construct 2-manifold objects with a variety of face topologies, which is illustrated by results of implementation.
Type de document :
Communication dans un congrès
ACM Symposium on Solid and Physical Modeling (SPM2007), Jun 2007, Beijing, China. 2007
Liste complète des métadonnées

Littérature citée [19 références]  Voir  Masquer  Télécharger
Contributeur : Thss Tsinghua <>
Soumis le : mardi 7 septembre 2010 - 11:37:39
Dernière modification le : mardi 7 septembre 2010 - 11:42:12
Document(s) archivé(s) le : mercredi 8 décembre 2010 - 02:43:07


Fichiers produits par l'(les) auteur(s)


  • HAL Id : inria-00515528, version 1


Jie-Hui Gong, Hui Zhang, Yi-Wen Zhang, Jia-Guang Sun. Converting Hybrid Wire-frames to B-rep Models. ACM Symposium on Solid and Physical Modeling (SPM2007), Jun 2007, Beijing, China. 2007. 〈inria-00515528〉



Consultations de la notice


Téléchargements de fichiers