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Proceedings Paper

Visualization analysis based on cell complex for 3D GIS
Author(s): Liangchen Zhou; Guonian Lu; Yehua Sheng; Hongbo Xu; Yongzhi Wang; Jieyu Zhou
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Paper Abstract

As the theory and application requirement of 3d GIS are developing dramatically, 3D geological simulation is not only limited in the capability of visualizing spatial objects, and it has a deeper demand on three dimensions spatial analysis for geographic objects or phenomenon. Therefore, a lot of visualized analysis functions for practical projects are proposed by researchers. However, these researches usually come up with corresponding algorithms based on certain data model or data structure which is without a powerful portability. And the algorithms are often limited to specific requirement which has little expansibility. To solve this problem, a new 3D GIS data model for 3D geological simulation is advanced based on cell complex theory and correlative research results in the field of non-manifold geometric modeling. And a series of 3D set operators are defined to carry out virtual drilling, virtual cutting, virtual digging and virtual tunnel excavation analysis and so on. Compared with existing implementations, the new presented 3D GIS data model unifies the expression of wire frame, facial and volumetric model, which ensures the portability of algorithm. Set operators based on non-manifold geometric modeling possessing mathematical completeness have the ability to implement arbitrary geometric object operation, which can insure the expansibility of the algorithm.

Paper Details

Date Published: 3 November 2008
PDF: 10 pages
Proc. SPIE 7143, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 71433H (3 November 2008); doi: 10.1117/12.812660
Show Author Affiliations
Liangchen Zhou, Nanjing Normal Univ. (China)
Guonian Lu, Nanjing Normal Univ. (China)
Yehua Sheng, Nanjing Normal Univ. (China)
Hongbo Xu, Nanjing Normal Univ. (China)
Yongzhi Wang, Nanjing Normal Univ. (China)
Jieyu Zhou, Nanjing Normal Univ. (China)

Published in SPIE Proceedings Vol. 7143:
Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments
Lin Liu; Xia Li; Kai Liu; Xinchang Zhang; Aijun Chen, Editor(s)

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