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《Geomatics World》 2017-04
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Research on Database Building of New 3D Mapping Geographic Information Products

CHEN Liangchao;CHEN Guang;XUE Mei;Chongqing Survey Institute;  
With the upgrading of surveying and mapping technology,various types of new 3D mapping geographic information products continue to emerge.In promoting the construction of a smart city,the application of spatial data resources in many industries tends tointersec and collaborte,and the requirements of data service supportting capacity are getting higher.This paper assesses the characteristics of large scale 3D digital city model,such as the complexity,mass and the fine degree.Then a new technology system for the integration of 3D mapping geographic information products is presented,which includes spatial grid partition,geographic entity coding,database design and data update and release mechanism.Finally,the application of 3D city database in planning,design,project review and construction management are discussed.
【Key Words】: surveying and mapping geographic information 3D digital city data integration geographic entity coding database
【Fund】: 地理空间信息工程国家测绘地理信息局重点实验室项目(201615);; 重庆市社会民生科技创新专项(cstc2016shmszx120005);; 国家自然科学基金项目(41471354)资助
【CateGory Index】: P208
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