参数有理三次B样条曲线的一种反求顶点技术及在CAGD中的应用举例

A TECHNIQUE OF DEFINING CUBIC RATIONAL B-SPLIMES CURVES WITH PARAMETER THROUGH COMPUTING VERTEXES OF CONTROL POLYGON AND THE EXAMPLE ABOUT ITS APPLICATION IN CAGD

本文给出了一种利用给出的型值点反求参数有理三次B校条曲线特征多边形的顶点，进而求出通过给定型值点的参数有理三次B样条曲线的技术．并对在计算机辅助几何设计（CAGD）中如何应用此技术给出了举例说明．

This paper gives an utility technique of defining cubic rational B-splines curves with parameter through computing vertexes of control polygon and gives a application example to explain how to use the technique in CAGD.