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《Acta Geodaetica Et Cartographic Sinica》 2001-01
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Design of Three-Dimensional Spatial Data Model and Its Data Structure in Geological Exploration Engineering

CHENG Peng-gen 1,2,GONG Jian-ya1 (1.Wuhan Technical University of surveying and Mapping Wuhan 430079,China; 2. Department of surveying, East China Geologic Institute,Linchuan 344000,China)  
With the differences of 3D study fields, the ways to describe spatial entities are different. It is difficult to design a single data model that is suitable for different 3D application cases. We should design a special 3D spatial data model based on the distributing features of spatial entities in the study fields. In this paper, analyzing the traditional 3D data models and taking the three-dimensional spatial phenomena in geological exploration engineering as the research background, we propose an object-oriented 3D blended data model with integrated vector and raster. This model is suitable for geological exploration engineering. By using logic relationship of the complex objects, bodies, surface, line and point objects to create topologic relationship among the objects. Some spatial entities data structures have been designed and their description were given with the help of an example of a volcano type iron field.
【Fund】: 国家杰出青年科学基金! (495 2 5 10 1) ;; 测绘遥感信息工程国家重点实验室开放基金! (WKL (96 ) 0 30 2 )
【CateGory Index】: P208
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