摘要： 阐述了非均匀有理样条曲面造型的发展背景及三维物体的几何特性计算原理,结合 B(NURBS: Non-Uniform Rational B-Spline)Gauss定理及参数曲面积分方法,给出了基于曲面的自由曲面体的几何特性计算原理与方法,并进行了实际应用。NURBS

关键词: 非均匀有理样条, 自由曲面, 几何特性, 计算机辅助设计B

Abstract: The paper describes the development of free-form surface modeling based on NURBS and the calculation of geometric properties three-dimensionally. According to Gauss theorem and parametric surface integral theory, a method is developed to compute geometrical properties of free-form surface based on NURBS and formulae are presented. The results of the example have proved practicality of the method. ;

中图分类号: 

• TP391.7