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《Journal of Wuhan University of Hydraulic and Electric Engineering》 2003-03
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Key issues for data transformation from CAD to GIS

GONG Jun, ZHU Qing, SUI Hai-gang, SONG Cheng-fang (State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China)  
As an important data source of CyberCity GIS, 3D CAD model data is widely available in design and planning departments. Especially b ecause GIS cannot meet the increasing demand in 3D modeling and editing, CAD mo deling method and its production will be continually adopted. In this paper, the differences and correlation in 3D data models between CAD and GIS are discussed . In addition, the solution is put forward to decide how CAD model data is effic iently integrated into CyberCity GIS. Most important, this paper places a strong emphasis on data representation, data structure and data translation. At last, the experimental results prove that the solution presented in the paper can meet the requirements of CyberCity GIS for data processing and measurable realistic representation with high efficiency.
【Fund】: 国家自然科学基金资助项目 (编号 :4 0 0 0 10 17) ;; 973计划资助项目 (2 0 0 2CB312 10 1)
【CateGory Index】: P208;TP391.72
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