Closed surface modeling with helical line measurement data

2007, Volume 2, Issue 1

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Frontiers of Mechanical Engineering >> 2007, Volume 2, Issue 1 doi: 10.1007/s11465-007-0012-z

Closed surface modeling with helical line measurement data

1.School of Machinery and Electronics, Shanghai Normal University, Shanghai 201418, China; 2.School of Machinery and Dynamic, Shanghai Jiaotong University, Shanghai 200030, China;

Available online: 2007-03-05

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Abstract

Models for surface modeling of free-form surface and massive data points are becoming an important feature in commercial computer aided design/computer-aided manufacturing software. However, there are many problems to be solved in this area, especially for closed free-form surface modeling. This article presents an effective method for cloud data closed surface modeling from asynchronous profile modeling measurement. It includes three steps: first, the cloud data are preprocessed for smoothing; second, a helical line is segmented to form triangle meshes; and third, Bezier surface patches are created over a triangle mesh and trimmed to shape on an entire surface. In the end, an illustrative example of shoe last surface modeling is given to show the availability of this method.

Keywords

free-form surface ; helical ; triangle ; design/computer-aided manufacturing ; effective

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