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《Developments In Surveying and Mapping》 2001-04
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The Research of Some Technologies About 3D-GIS

LI Yong,HAO Xiang-yang,XI Qin(Insititute of Surveying and Mapping of Information Engineering University,Zhengzhou 450052,China)  
D-GIS has been a pop field of geo-information research. This paper study 3D-GIS more deeply. A new data structure is presented based on spatial-cognitive-methodology and open-to-object thoughts, which agrees with popular human thought, can storage and manage spatial data conveniently, and is avail of spatial analysis and display of 3D-object. This paper also represent a method translating searching in 3D space to searching in 2D space plus in 1D Space, which can increase the rate in 3D space search.
【CateGory Index】: P208
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