Development of a hybrid model for three-dimensional GIS |
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Authors: | Shi Wenzhong |
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Institution: | SHI Wenzhong |
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Abstract: | This paper presents a hybrid model for three_dimensional Geographical Information Systems which is an integration of surface_ and volume_based models.The Triangulated Irregular Network (TIN) and octree models are integrated in this hybrid model.The TIN model works as a surface_based model which mainly serves for surface presentation and visualization.On the other hand,the octree encoding supports volumetric analysis.The designed data structure brings a major advantage in the three_dimensional selective retrieval.This technique increases the efficiency of three_dimensional data operation. |
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Keywords: | hybrid three_dimensional model TIN model octree model GIS |
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