TY - GEN
T1 - Hierarchical D-NURBS surfaces and their physics-based sculpting
AU - Zhang, Meijing
AU - Qin, Hong
PY - 2001
Y1 - 2001
N2 - In this paper, we present hierarchical D-NURBS as a new shape modeling representation which generalizes powerful, physics-based D-NURBS for interactive geometric design. Our hierarchical D-NURBS can be viewed as a collection of standard D-NURBS finite elements, organized hierarchically in a tree structure and subject to continuity constraints across the shared boundaries of adjacent D-NURBS elements at different levels. The layered and composite construction of hierarchical D-NURBS affords users the effective creation of local features and their flexible, global/local control at different level of details. Within the framework of hierarchical D-NURBS, users can interactively sculpt NURBS geometry more intuitively and conveniently through both global and local toolkits. Based on the data structure of hierarchical D-NURBS, we have developed a prototype software equipped with various physics based toolkits in the form of geometric constraints and simulated forces. Our modeling system allows users to undertake the design tasks of point manipulation, normal editing, curvature control, curve fitting, and area sculpting in interactive graphics and CAD/CAM.
AB - In this paper, we present hierarchical D-NURBS as a new shape modeling representation which generalizes powerful, physics-based D-NURBS for interactive geometric design. Our hierarchical D-NURBS can be viewed as a collection of standard D-NURBS finite elements, organized hierarchically in a tree structure and subject to continuity constraints across the shared boundaries of adjacent D-NURBS elements at different levels. The layered and composite construction of hierarchical D-NURBS affords users the effective creation of local features and their flexible, global/local control at different level of details. Within the framework of hierarchical D-NURBS, users can interactively sculpt NURBS geometry more intuitively and conveniently through both global and local toolkits. Based on the data structure of hierarchical D-NURBS, we have developed a prototype software equipped with various physics based toolkits in the form of geometric constraints and simulated forces. Our modeling system allows users to undertake the design tasks of point manipulation, normal editing, curvature control, curve fitting, and area sculpting in interactive graphics and CAD/CAM.
UR - https://www.scopus.com/pages/publications/84884775997
U2 - 10.1109/SMA.2001.923397
DO - 10.1109/SMA.2001.923397
M3 - 会议稿件
AN - SCOPUS:84884775997
SN - 0769508537
SN - 9780769508535
T3 - Proceedings - International Conference on Shape Modeling and Applications, SMI 2001
SP - 257
EP - 266
BT - Proceedings - International Conference on Shape Modeling and Applications, SMI 2001
T2 - 2001 International Conference on Shape Modeling and Applications - Shape Modeling International, SMI 2001
Y2 - 7 May 2001 through 11 May 2001
ER -