G(1) CONTINUITY OF B-SPLINE SURFACE PATCHES IN REVERSE ENGINEERING

被引：93
作者：
MILROY, MJ
BRADLEY, C
VICKERS, GW
WEIR, DJ
机构：
[1] Department of Mechanical Engineering, University of Victoria, Victoria, BC V8W 3P6
来源：
COMPUTER-AIDED DESIGN | 1995年 / 27卷 / 06期
基金：
加拿大自然科学与工程研究理事会;
关键词：
STITCHING; SURFACE SMOOTHING; REVERSE ENGINEERING;
D O I：
10.1016/0010-4485(95)00020-R
中图分类号：
TP31 [计算机软件];
学科分类号：
081202 ; 0835 ;
摘要：
When a clay model or industrial part is reverse engineered, B-spline surfaces are typically fitted to surface data points collected by a coordinate measuring machine, or, in more recent times, a laser scanner. The surface fitting procedure results in a patchwork of B-spline surfaces. Some of these patches may be required to blend smoothly with their neighbours to a specified degree of continuity. Past research on surface patch continuity has focused on Bezier surfaces. In the paper, some of those techniques are modified and applied to B-spline surfaces. An optimization method is presented which can achieve an approximate global G(1) continuity of a given patchwork of B-spline surfaces. The method is illustrated by a complex physical model, which is digitized by a 3D laser scanner, and reverse engineered to create a smooth CAD model.
引用
收藏
页码：471 / 478
页数：8
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