摘要
利用Wang Ball基函数的对偶基给出用显式表示的Wang Ball曲线的细分算法(细分矩阵),导出幂基函数在Wang Ball基下的Marsden恒等式,作为其应用还给出了几个相关的组合恒等式由Wang Ball基与Bernstein基之间的转换公式构造了Wang
By means of the dual function of Wang-Ball basis, this paper presents an explicit subdivision algorithm for the Wang-Ball curve (subdivision matrix). As an application, some combinational identities are given. The Marsden's identity of power basis in terms of the Wang-Ball basis is also derived. Using the conversion formula between Bernstein basis and Wang-Ball basis, the envelope of the Wang-Ball curves is constructed.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2005年第4期637-643,共7页
Journal of Computer-Aided Design & Computer Graphics
基金
国家自然科学基金(10171026)
安徽省自然科学基金(03046102)
安徽技术师范学院稳定人才项目(ZRC200545)
合肥工业大学校基金(041001F)