摘要
用3D MAX设计产品模型时,自由曲面造型所占的比例越来越重,外型越来越趋向"流线型",同时,要求自由曲面的造型必需能够局部地自由加以变更。NURBS不需要进行大量精确数据的测量和数学表达式的拟合,便可以方便地生成各种符合设计需求的造型。该文结合曲面造型的工作实践,对NURBS原理和曲面造型相关的理论及使用技巧和经验进行探讨。
When with 3D MAX design product model, the free surface modeling occupies the proportion is more and more heavy, the outlook more and more tends to "the streamline form", simultaneously, the request free curved surface modelling es- sential can free change partially.NUR_BS does not need to carry on the massive precise informations the survey and the mathemat- ical expression fitting, then may produce each kind to conform to the design demand modelling conveniently.This article unifies the surface modeling the working practice, carries on the discussion to the NUR_BS principle and the surface modeling correla- tion theories and the use skill and the experience.
作者
贺志宇
HE Zhi-yu (Department of Computer Science, Jining Teachers College, Wulanchabu 012000, China)
出处
《电脑知识与技术》
2012年第12期8272-8273,8286,共3页
Computer Knowledge and Technology
关键词
NURBS
原理
造型元素
造型方法
曲面阶数
封闭
控制点
NUR_BS
principle
modelling element
modelling method
curved surface exponent number
seal
control point