A new method for direct deformation of NURBS surfaces

被引:0
|
作者
Wang Hui-min [1 ]
Chen Zi-fu [1 ]
机构
[1] Weifang Univ, Dept Mech & Elect Engn, Dept Comp Engn, Weifang 261061, Peoples R China
关键词
NURBS surface; deformation; displacement function; the Cao En model; SHAPE MODIFICATION;
D O I
10.1109/ICIC.2009.229
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The method to modify the NURBS surface in this paper is not based on the change of the mathematical parameters. It presents a new surface representation for the deformed NURBS surface based on the Cao En model. The deformed surface representation is a combination of two functions: a displacement function and a function for an existing NURBS surface. There is no implied controlling grid structure over the surface. The key points can be placed anywhere in the parameter space. The point displacement constraints directly influence the final shape of the deformed surface. The results show that this method facilitates the designer in a rapid and intuitive manner in editing surfaces.
引用
收藏
页码:94 / +
页数:2
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