摘要
Some practical problems in designing the outline of hidden airplane require to construct high-order surfaces with at least second order continuity. The high-order smooth surfaces'construction has been always a difficuit problem in CAGD. In this paper, G^2 smoothness between two biquintic surface patches is discussed, and the intrinsic conditions of the control vectors of the common boundary curve are presented.
Some practical problems in designing the outline of hidden airplane require to construct high-order surfaces with at least second order continuity. The high-order smooth surfaces'construction has been always a difficult problem in CAGD. In this paper, G2smoothness between two biquintic surface patches is discussed, and the intrinsic conditions of the control vectors of the common boundary curve are presented.
出处
《数值计算与计算机应用》
CSCD
北大核心
2004年第1期20-35,共16页
Journal on Numerical Methods and Computer Applications
基金
国家"九七三"项目(G19980306007)
教育部博士点基金(199014115)
教育部优秀青年教师基金
教育部青年骨干教师基金资助项目
关键词
双五次B-样条曲面
曲面重建
反向工程
G^2拼接
自由度
B-spline surface patches
Geometric continuity
Instinct conditions of boundary control points.
