B_3样条曲线曲面拟合法及其在拱坝形体设计中的应用

B3SPLINE METHOD AND APPLICATION TO THE ARCHDAM MODELING

本文提出了一种基于Ｂ３样条的自由曲线、曲面拟合方法．该方法除具有Ｂ样条拟合的主要优点外，还具有拟合曲线、曲面，通过所有型值点的特点．结合拱坝形体设计实例。

Polynomial is often used to approach curve surface as a kernel function on the computer aided geometric design. Bspline method of approaching curve surface is proposed on the analysis of some curves to be formed. The method is as good as B3spline at least and all controlling points are passed. In addition, some examples of the archdam modeling are given in this paper.