A Subdivision Scheme for Rational Triangular Bézier Surfaces
A Subdivision Scheme for Rational Triangular Bézier Surfaces作者机构:State Key Laboratory of CAD & CG Zhejiang University Hangzhou
出 版 物:《Journal of Computer Science & Technology》 (计算机科学技术学报(英文版))
年 卷 期:1996年第11卷第1期
页 面:9-16页
核心收录:
学科分类:1305[艺术学-设计学(可授艺术学、工学学位)] 13[艺术学] 08[工学] 080203[工学-机械设计及理论] 081304[工学-建筑技术科学] 0802[工学-机械工程] 0813[工学-建筑学] 080201[工学-机械制造及其自动化]
基 金:省市基金
主 题:Rational Bézier surface subdivision reparametrization
摘 要:An explicit formula is developed to decompose a rational triangular Bezierpatch into three non-degenerate rational rectangular B6zier patches of the samedegree. This formula yields a stable algorithm to compute the control verticesof those three rectallgular subpatches. Some properties of the subdivision arediscussed and the formula is illustrated with an example.