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《Science of Surveying and Mapping》 2007-02
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Research on realizable system structure for spatial data manipulation language

XU Cui-ling,CUI Jian-jun,LI Jian-wu(School of Earth Sciences and Resources Management,Chang'an University,Xi'an 71005,China;School of Geology engineering and Geomat-ics,Chang'an University,Xi'an 71005,China;Henan General Institute of Surveying and Mapping of Geology,Zhengzhou 450006,China)  
On the basis of analyzing object-relational data model and referencing OpenGIS criterion,the authors in this paper,through reference SQL2,using middle-layer for media,and aiming at data manipulation and user interface,put forward a realizable system structure for data manipulation language.Then they explain the process to spatial data manipulation by example of data.By encapsulation of spatial data operation and insertion spatial data operation into GIS application and RDBMS as a middle ware,they realize the expression of spatial data manipulation with SQL.
【CateGory Index】: TP311.13
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