摘要
构造了带形状参数λ的2m+2次Ball基和Ball曲线,它具有Said-Ball型广义基所具有的基本性质,通过调整参数达到控制曲线的目的。当λ=0时,2m+2次Ball基退化为2m+1次Said-Ball型广义基。最后,4个实例说明在不改变控制点的情况下,通过调整带形状参数λ可以很好地调整曲线形状。
2m＋2 Ball bases and Ball curves with shape parameter λ are constructed. They have the same properties as the Said-Ball bases, and can control curve by adjusting the shape parameter 2. As 2=0, the 2m＋2 Ball bases degenerate to the 2m＋1 Said-Ball bases. Four examples show that Ball curve shapes can be adjusted by changing shape parameters but keeping the control points unchanged.
出处
《工程图学学报》
CSCD
北大核心
2009年第5期69-79,共11页
Journal of Engineering Graphics
基金
安徽省教育厅自然科学重点资助项目(2005KJ096)
