双三次B样条曲面与费格森曲面和双三次贝齐尔曲面的等价关系式

Equivalent Relations Between Bi-cubic B-Spline Surface and Two Surfaces(Ferguson Surface and Bi-cubic Bezier Surface)

就双三次 B 样条曲面与费格森曲面、双三次贝齐尔曲面的等价性,提出了各曲面之间几何信息转换的关系式及矢量作图方法。

According to equivalent relationship between bi-cubic B-spline surface and two surfaces(Ferguson surface and bi-cubic Bezier surface),some relative expressions are pre- sented which can be used to transfer the informations of geometric among those surfaces.A drawing method of vector graph is also developed.