Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (21): 87-89.
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LI Jun-cheng,SONG Lai-zhong,ZHANG Ming-wang
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李军成,宋来忠,张明望
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Abstract: A kind of blending function is constructed based on trigonometric function,which is named QCT-Blending function.Then the method of generating QCT-Coons patch is discussed.QCT-Coons path has the same superiority to double cubic Coons path,furthermore it can accurately represent torus and ellipsoid.
Key words: trigonometric functions, QCT-Blending functions, QCT-Coons patch, torus, ellipsoid
摘要: 从三角函数出发,构造了一种类三次三角多项式混合函数,简称为QCT-混合函数,然后在此基础上生成了一种类似于双三次Coons曲面片的三角多项式曲面片,并称之为QCT-Coons曲面片。事实表明,QCT-Coons曲面不仅具有双三次Coons曲面片的性质,而且还能精确地表示球面、圆环面、椭球面等二次曲面。
关键词: 三角函数, QCT-混合函数, QCT-Coons曲面片, 圆环面, 椭球面
LI Jun-cheng,SONG Lai-zhong,ZHANG Ming-wang. Expression and application of QCT-Coons patch[J]. Computer Engineering and Applications, 2007, 43(21): 87-89.
李军成,宋来忠,张明望. QCT-Coons曲面片及其应用[J]. 计算机工程与应用, 2007, 43(21): 87-89.
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