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CLC number: TP391

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Received: 2008-03-31

Revision Accepted: 2008-06-24

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Journal of Zhejiang University SCIENCE A 2008 Vol.9 No.9 P.1214-1228


Deformation-based freeform feature reconstruction in reverse engineering

Author(s):  Qing WANG, Jiang-xiong LI, Ying-lin KE

Affiliation(s):  State Key Lab of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   uphover@163.com, ljxiong@zju.edu.cn

Key Words:  Freeform feature, Surface deformation, Fishbone structure, Character line, Limiting line, Reverse engineering

Qing WANG, Jiang-xiong LI, Ying-lin KE. Deformation-based freeform feature reconstruction in reverse engineering[J]. Journal of Zhejiang University Science A, 2008, 9(9): 1214-1228.

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author="Qing WANG, Jiang-xiong LI, Ying-lin KE",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Deformation-based freeform feature reconstruction in reverse engineering
%A Qing WANG
%A Jiang-xiong LI
%A Ying-lin KE
%J Journal of Zhejiang University SCIENCE A
%V 9
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0820244

T1 - Deformation-based freeform feature reconstruction in reverse engineering
A1 - Qing WANG
A1 - Jiang-xiong LI
A1 - Ying-lin KE
J0 - Journal of Zhejiang University Science A
VL - 9
IS - 9
SP - 1214
EP - 1228
%@ 1673-565X
Y1 - 2008
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A0820244

For reconstructing a freeform feature from point cloud, a deformation-based method is proposed in this paper. The freeform feature consists of a secondary surface and a blending surface. The secondary surface plays a role in substituting a local region of a given primary surface. The blending surface acts as a bridge to smoothly connect the unchanged region of the primary surface with the secondary surface. The secondary surface is generated by surface deformation subjected to line constraints, i.e., character lines and limiting lines, not designed by conventional methods. The lines are used to represent the underlying information of the freeform feature in point cloud, where the character lines depict the feature’s shape, and the limiting lines determine its location and orientation. The configuration of the character lines and the extraction of the limiting lines are discussed in detail. The blending surface is designed by the traditional modeling method, whose intrinsic parameters are recovered from point cloud through a series of steps, namely, point cloud slicing, circle fitting and regression analysis. The proposed method is used not only to effectively and efficiently reconstruct the freeform feature, but also to modify it by manipulating the line constraints. Typical examples are given to verify our method.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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