摘要
给出一个克服曲面G1拼接中出现的扭曲现象的方法。扭曲现象是由于G1连续条件对曲面控制顶点的约束和曲面的自由交互输入之间的矛盾造成的,为了解决这个矛盾,我们采用多步线性变分优化的方法,逐步自动调整原输入曲面片上的角点、扭矢、边控制顶点、边附近控制顶点和内部控制顶点的多余自由度,使曲面片间达到G1连续的同时,也具备光顺性。
his paper gives an approach to cope with the twist problems in G1 surface construction. The surface twists are caused by the contradiction between G1 constraints on the control points of surfaces and the free input of them. Here, we utilize the multipass linear variational optimization method to adjust the surface control points automatically so that the surfaces are not only G1 continuous but also fair.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
1996年第5期352-360,共9页
Journal of Computer-Aided Design & Computer Graphics
基金
华中理工大学青年科学基金
关键词
曲面造型
G^1曲面
CAD
变分法
优化法
geometrical continuity
surface fairing
shape optimization
variationalmethod.