Part recognition–based simplification of triangular mesh models for ships and plants
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Among the methods of expressing the shapes of components in ships and plants, the triangular mesh model provides a simple structure and convenient visualization, supports numerous support tools, and can be used in various engineering tasks. Recently, there have been efforts to visualize entire ships and plants for design review, interference checks, process monitoring, and establishing maintenance space; however, because such triangular mesh models are very large, they require high-performance computing resources and are time-consuming. In order to resolve such issues, a method of triangular mesh model simplification is proposed considering the features of large-capacity ship and plant structures. This method generates B-rep models for each part that constitutes the triangular mesh model. Also, the part types including beams, shells, and small parts are recognized from the B-rep model. Finally, mesh simplification corresponding to the recognized part type is carried out. Application of the proposed mesh simplification method enables rapid generation of a low level of detail (LOD) version of the large-scale triangular mesh model.
KeywordsLarge-scale data Model simplification Part recognition Ships and plants Triangular mesh
This study was supported by the Industry Core Technology Development Program (Project ID: 10080662) funded by the MOTIE and by Institute of Information & communications Technology Planning & Evaluation (IITP) grant (Project ID: 2019-0-01304) funded by the MSIT of the Korean government.
- 2.Ball A, Ding L, Patel M (2007) Lightweight formats for product model data exchange and preservation, PV 2007 Conference, Oberpfaffenhofen, Germany, October 2007Google Scholar
- 3.Toriya H (2008) Benefits of lightweight 3D data. 3D manufacturing innovation, revolutionary change in Japanese manufacturing with digital data. Springer, London, pp 33–50Google Scholar
- 4.Kwon KY (2019) Design point generation method from lightweight model for dimensional quality management in shipbuilding. J Ship Prod Des. https://doi.org/10.5957/JSPD.08170042
- 5.Veron P, Leon JC (1998) Shape preserving polyhedral simplification with bounded error. 22(5):565–585Google Scholar
- 19.Hoppe H (1996) Progressive meshes. In: Proceedings of the 23rd annual conference on computer graphics and interactive techniques, pp 99–108Google Scholar
- 20.Rossignac J, Borrel P (1993) Multi-resolution 3D approximations for rendering complex scenes, modeling in computer graphics. Springer, Berlin, Heidelber, pp 455–465Google Scholar
- 22.JT Open Toolkit (2019) https://www.plm.automation.siemens.com/global/en/products/plm-components/jt-open-toolkit.html. Accessed 24 June 2019