一种基于矢量伸缩函数的参数曲面插值变形方法
DOI: 10.11834/jig.20091122
Keywords: 参数曲面,插值变形,伸缩矢量函数
Abstract:
为了对参数曲面进行精确变形,可通过构造特殊矢量伸缩函数来实现参数曲面的插值变形。变形时,先在曲面选取变形辅助点,并利用这些辅助点构造矢量伸缩函数;然后基于矢量叠加原理用此伸缩矢量函数去作用曲面,使曲面发生变形且变形后通过给定的插值点。插值变形结果表明,此方法不仅能够精确控制变形范围,而且在变形与未变形部分之间具有C2连续性。
References
[1] | Ugur Güdükbay,Bülent Uzgü,Free-form solid modeling using deformation,Computers & Geosciences,1990(04).
|
[2] | Coquillart S,Extension free-form deformation:A sculpting tool for 3D geometric modeling,Computers and Graphics,1990(04).
|
[3] | Burr A H,Global & local doformations of solid primitives,Computers and Graphics,1984(03).
|
[4] | Sederberg T W,Parry R,Free-form deformation of solid geometric models,Computers and Graphics,1986(04).
|
[5] | Lazarus F,Coquillart S,Jancene P,An intuitive technique,Computer-Aided Design,1994(08).
|
[6] | Feng J Q,Ma L Z,Peng Q S,New free-form deformation through the control of parametric surfaces,Computers & Geosciences,1996(04).
|
Full-Text