| QTPV Data Model and Algorithm and Its Application to Geological Exploration Engineering |
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| 引用本文： | CHENGPenggen SHIWenzhong GONGJianya ZHOUGuoqing. QTPV Data Model and Algorithm and Its Application to Geological Exploration Engineering[J]. 地球空间信息科学学报, 2005, 8(1): 64-71. DOI: 10.1007/BF02826995 |
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| 作者姓名： | CHENGPenggen SHIWenzhong GONGJianya ZHOUGuoqing |
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| 作者单位： | [1]不详 [2]professor,Dept.ofSurveying,EastChinaInstituteofTechnology,Fuzhou,Jiangxi344000,China. |
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| 基金项目： | Funded by the Hong Kong Polytechnic University ASD research fund，Open Research Fund Program of LIESMARS，国家自然科学基金 |
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| 摘 要： | 3D spatial data model and simulating are the core of 3D GIS can be adopted in different domains. A data model based on Quasi Tri-Prism Volume (QTPV) has been proposed. QTPV definition and its special cases have been discussed. Using QTPV and its special cases, irregular natural geological bodies and regular subsurface engineering can be described efficiently. The proposed model is composed of five primitives and six objects. Data structures and topological relationship of the fives primitives and three objects describing stratigraphy are designed in detail Some schemes are designed for the QTPV modelling of stratigraphy and subsurface engineering according to modelling data. The model manipulation method of QTPV cutting by an arbitrary plane is discussed. Using VC 6.0 programming language integrated with SQL database and OpenGL graphic library under windows environment, a system prototype 3DGeoMV has been developed. The experiment result shows that the QTPV model is feasible and efficient in modelling subsurface engineering.
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| 关 键 词： | 准三棱镜体积 数据模型 虚拟算法 地理信息系统 地下工程 |
| 收稿时间： | 2004-10-18 |
QTPV data model and algorithm and its application to geological exploration engineering |
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| Cheng Penggen,Shi Wenzhong,Gong Jianya,Zhou Guoqing. QTPV data model and algorithm and its application to geological exploration engineering[J]. Geo-Spatial Information Science, 2005, 8(1): 64-71. DOI: 10.1007/BF02826995 |
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| Authors: | Cheng Penggen Shi Wenzhong Gong Jianya Zhou Guoqing |
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| Affiliation: | (1) Dept. of Surveying, East China Institute of Technology, 344000 Fuzhou, Jiangxi, China |
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| Abstract: | 3D spatial data model and simulating are the core of 3D GIS can be adopted in different domains. A data model based on Quasi Tri-Prism Volume (QTPV) has been proposed. QTPV definition and its special cases have been discussed. Using QTPV and its special cases, irregular natural geological bodies and regular subsurface engineering can be described efficiently. The proposed model is composed of five primitives and six objects. Data structures and topological relationship of the fives primitives and three objects describing stratigraphy are designed in detail. Some schemes are designed for the QTPV modelling of stratigraphy and subsurface engineering according to modelling data. The model manipulation method of QTPV cutting by an arbitrary plane is discussed. Using VC 6.0 programming language integrated with SQL database and OpenGL graphic library under windows environment, a system prototype 3DGeoMV has been developed. The experiment result shows that the QTPV model is feasible and efficient in modelling subsurface engineering. |
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| Keywords: | GIS QTPV data model algorithms visualization subsurface engineering |
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