摘要
讨论目前常用的几种Ｂ样条插值问题的边界条件，并提出一种新的边界条件构造法─—构造曲率法，由于在该方法中引入了曲率参数Ｋ，使得设计者可通过对Ｋ值的调节来改变插值曲线端部形状，以满足不同的设计要求。文章最后，给出了由端点切矢方向确定Ｋ值的方法。
This paper discusses the boundary condititons used currently for B-spline interpolation and provides a new method to structure boundary conditition, which is called“Structuring-Curvature Method”. Using this method, the shape of curve at end parts can be changed easily at designers’desire by adjusting the“curvature coefficient”K. A method is given at last which gets the value of“curvature coefficient”K through the tangent direction at end points.
出处
《计算机工程与设计》
CSCD
北大核心
1996年第1期47-53,共7页
Computer Engineering and Design
关键词
样条函数
构造曲率法
曲线
设计
CAD
CAM
pline function interpolation
Boundaiy condition
Structuring-curvature method
Fairness
