CURVE AND SURFACE CONSTRUCTIONS USING RATIONAL B-SPLINES

被引：172

作者：

PIEGL, L ^{[1
]}

TILLER, W ^{[1
]}

机构：

[1] STRUCT DYNAM RES CORP,MILFORD,OH 45150

来源：

COMPUTER-AIDED DESIGN | 1987年 / 19卷 / 09期

关键词：

COMPUTER AIDED MANUFACTURING - COMPUTER GRAPHICS;

D O I：

10.1016/0010-4485(87)90234-X

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

This paper presents the non-uniform rational B-spline approximation form as a unified approach to representing free-form as well as standard analytic curves and surfaces commonly used in CADCAM. The emphasis is on geometric constructions, not on the underlying mathematical theory. A description is also given of how to represent conic and circular arcs as rational quadratic Bezier curves and how to piece together several circular arcs to form a NURB representation of the full circle.

引用

页码：485 / 498

页数：14

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