[1]慈瑞梅,李东波.逆向工程中NURBS曲面重构技术研究[J].南京理工大学学报(自然科学版),2004,(04):390-394.
 CI Rui mei,LI Dong bo.NURBS Surface Reconstruction in Reverse Engineering[J].Journal of Nanjing University of Science and Technology,2004,(04):390-394.
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逆向工程中NURBS曲面重构技术研究()
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2004年04期
页码:
390-394
栏目:
出版日期:
2004-08-30

文章信息/Info

Title:
NURBS Surface Reconstruction in Reverse Engineering
作者:
慈瑞梅李东波
南京理工大学机械工程学院, 江苏南京210094
Author(s):
CI Rui meiLI Dong bo
School of Mechanical Engineering,NUST,Nanjing 210094,China
关键词:
逆向工程 非均匀有理B 样条 曲面插值
Keywords:
reverse eng ineering non-uniform rat ional B-spline surface interpolation
分类号:
TP391.7
摘要:
该文提出一种利用数据点特征的非均匀有理B样条 (NURBS)曲面重构方法。针对三坐标测量机测得数据点的特点 ,自动建立散乱点的拓扑信息 ,简化繁琐的数据前期处理工作。在曲面重构方法上 ,采用NURBS曲面插值方法 ,针对数据点的分布不均匀性 ,通过累积弦长法构造非均匀节点矢量 ,保证曲面的插值精度。B样条求值的快速算法 ,利用临时多项式替代递归调用 ,能提高运算效率。
Abstract:
A procedure is proposed that reconst ructs Non-uniform Rat ional B-Spline ( NU RBS) surface w ith features of measured data. With characteristics of measured points taken into considerat ion, topolog y information can be automatically ext racted and it simplifies previous data process. The method of NURBS surface interpolat ion is applied for reconst ruct ion. With nonuniform data points, a method of accumulat ing chord length is presented to create non-uniform knot s vector and guarantees the precision of the surface. An optimal algorithm for B-spline evaluat ion subst itutes temporary polynomial expressions for the iterat ive applicat ion and enhances the comput ing eff iciency.

参考文献/References:

[ 1] 朱心雄. 自由曲线曲面造型技术[M] . 北京: 科学出版社, 2000. 88~ 196.
[ 2] Ma Weiy in, Kruth Jean- Pierre. NURBS cur ve and surface fitting for r ev erse engineering[ J] . I nternat ional Journal of Advanced Manufacturing Technology, 1998, 14( 12) : 918~ 927.
[ 3] Ko nno Kouichi, Tokuyama Yoshimasa, Chiyokur a Hiroaki. A G’ connect ion around complicated curv e meshes using C‘ NURBS Boundary Gregor y Patches[ J] . Computer- aided Design, 2001, 33 : 293~ 306.
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[ 6] 来新民, 黄田, 曾子平, 等. 基于NURBS 的散乱数据点自由曲面重构[ J] . 计算机辅助设计与图形学学报, 1999, 11( 5) : 433~ 436.
[ 7] 施法中. 计算机辅助几何设计与非均匀有理B 样条[M] . 北京: 北京航空航天大学出版社, 1994. 319 ~ 465.

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备注/Memo

备注/Memo:
作者简介: 慈瑞梅( 1975- ) , 女, 山东潍坊人, 博士生, 主要研究方向: 逆向工程, E-mail: cir uimei@ eyou.com。
更新日期/Last Update: 2013-03-11