Non-manifold boundary representations have become very popular in recent years and various representation schemes have been proposed, as they represent a wider range of objects, for various applications, than conventional manifold representations. As these schemes mainly focus on describing sufficient adjacency relationships of topological entities, the models represented in these schemes occupy storage space redundantly, although they are very efficient in answering queries on topological adjacency relationships. To solve this problem, in this paper, we propose a compact as well as fast non-manifold boundary representation, called the partial entity structure. This representation reduces the storage size to half that of the radial edge structure, which is one of the most popular and efficient of existing data structures, while allowing full topological adjacency relationships to be derived without loss of efficiency. In order to verify the time and storage efficiency of the partial entity structure, the time complexity of basic query procedures and the storage requirement for typical geometric models are derived and compared with those of existing schemes.
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December 2001
Technical Papers
Partial Entity Structure: A Compact Boundary Representation for Non-Manifold Geometric Modeling
Sang Hun Lee,
Sang Hun Lee
Graduate School of Automotive Engineering, Kookmin University, Korea
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Kunwoo Lee, Mem. ASME
Kunwoo Lee, Mem. ASME
School of Mechanical and Aerospace Engineering, Seoul National University, Korea
Search for other works by this author on:
Sang Hun Lee
Graduate School of Automotive Engineering, Kookmin University, Korea
Kunwoo Lee, Mem. ASME
School of Mechanical and Aerospace Engineering, Seoul National University, Korea
Contributed by the Computer Aided Product Development (CAPD) Committee for publication in the JOURNAL OF COMPUTING AND INFORMATION SCIENCE IN ENGINEERING. Manuscript received Aug. 2001; revised manuscript received Nov. 2001. Associate Editor: D. Anderson, K. Lee.
J. Comput. Inf. Sci. Eng. Dec 2001, 1(4): 356-365 (10 pages)
Published Online: November 1, 2001
Article history
Received:
August 1, 2001
Revised:
November 1, 2001
Citation
Lee, S. H., and Lee, K. (November 1, 2001). "Partial Entity Structure: A Compact Boundary Representation for Non-Manifold Geometric Modeling ." ASME. J. Comput. Inf. Sci. Eng. December 2001; 1(4): 356–365. https://doi.org/10.1115/1.1433486
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