| 一种基于似三棱柱体元的地质三维建模方法研究 |
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| 引用本文： | 程朋根,刘学斌,史文中,王伟.一种基于似三棱柱体元的地质三维建模方法研究[J].华东地质学院学报,2004,27(1):73-79. |
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| 作者姓名： | 程朋根 刘学斌 史文中 王伟 |
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| 作者单位： | [1]东华理工学院测量系，江西抚州344000 [2]江西省交通设计院,江西南昌330002 [3]香港理工大学土地测量与地理资讯学系，香港九龙,江西南昌330002 [4]武汉大学测绘与遥感信息工程国家重点实验室，湖北武汉430079,江西南昌330002 |
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| 基金项目： | 测绘遥感信息工程国家重点实验室开放研究基金(WKL(01)0302);香港理工大学战略发展研究基金(1.31.A222);国家973资助项目(G2000077904) |
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| 摘 要： | 三堆空间建模方法是三堆地劫工程GIS研究的核心问题之一。提出一种基于似三棱柱体元的三堆数据模型，模型包含顶点、线段(棱边、三角形边)、三角形、侧面四边形、三棱柱体元5个基本元素。和点对象、线对象、面对象、体对象、复杂对象、空间对象等6个对象。设计了5个基本元素和3种地质对象的数据结构和它们之间的拓扑关系。以岩体和巷道为例。给出了似三棱柱体建模思路和算法。利用内蒙古某矿区实际钻孔资料和模拟巷道数据对所开发的系统原型进行验证。研究表明。基于似三棱柱体元的数据模型的优势在于可以表示空间对象的表面和内部结构。便于建模和节省存储空间，同时便于不规劓的自然地质体和规则勘探工程建模。
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| 关 键 词： | 似三棱柱体元 地质勘察 数据模型 三维建模 地理信息系统 |
| 文章编号： | 1001-2251(2004)01-073-07 |
| 修稿时间： | 2004年2月9日 |
A Method of 3D Modeling Based on QTPV in Subsurface Rock Bedding |
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| CHENG Peng-gen.A Method of 3D Modeling Based on QTPV in Subsurface Rock Bedding[J].Journal of East China Geological Institute,2004,27(1):73-79. |
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| Authors: | CHENG Peng-gen |
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| Institution: | CHENG Peng-gen~ |
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| Abstract: | The method of 3D spatial modeling is one of the core problems for construction 3D Geological Exploration Engineering (GEE) GIS. In this paper, A method of 3D modeling based on Quasi Tri-Prism Volume (QTPV) is proposed. The proposed model is composed of five primitives and six objects. The primitives are vertex, segment (edge, triangle side), triangle, side quadrilateral and QTPV), and the objects are point, line, face, solid, complex and spatial object. Data structures and topology relationship of the five primitives and three geological objects are designed in detail. Taking the rock bedding band laneway as research objects, QTPV modelling methods and algorithms are designed. A set of real borehole sample data, which come from Inner Mongolia China, and a set of simulation laneway data are used to verify the prototype system developed in VC++ program language. The research results show that QTPV-based model has some advantages, for instance, it can be used to describe the surface and interior of spatial objects, it is convenient to modeling spatial objects and save memory, and it is suitable for modeling irregular natural geological bodies and regular GEE at the same time. |
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| Keywords: | Quasi Tri-Prism Volume Data model Modelling Algorithm geology |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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