Adaptive gregory patch approximation to z-map data
SCIE
SCOPUS
- Title
- Adaptive gregory patch approximation to z-map data
- Authors
- Jang, D; Kim, K; Jeong, J
- Date Issued
- 1999-01
- Publisher
- SPRINGER-VERLAG LONDON LTD
- Abstract
- A method is proposed for Gregory surface approximation to 3D array data points. Surface approximation is the process of constructing a compact representation to model an object surface based on a fairly large number of measured 3D data points. Based an an adaptive subdivision technique, the proposed method begins with a rough initialisation of the surface and progressively refines it in successive steps in the regions where the data is poorly approximated. The method has been implemented using piecewise bicubic Gregory patches with G(I) continuity. An advantage of this approach is that the refinement is essentially local, reducing the computational requirements that permit the processing of a large number of data points. This method, combined with the inverse offsetting method can be used to obtain an offset surface without self-interference. The offset surface can be used to generate gauging-free CL tool paths far machining compound surfaces on milling machines.
- Keywords
- adaptive subdivision; Gregory patch; offset surface; surface approximation; SURFACE APPROXIMATION; POINTS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/20427
- DOI
- 10.1007/s001700050058
- ISSN
- 0268-3768
- Article Type
- Article
- Citation
- INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, vol. 15, no. 3, page. 210 - 216, 1999-01
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