新型基础测绘体系下城市1∶500 DLG更新入库方法探索  

Exploration a Updating and Warehousing Method of Urban 1∶500 DLG in the System of New Basic Surveying and Mapping

作　　者：覃会玲[1] 喻燕萍[1] Qin Huiling;Yu Yanping(Chengdu Institute of Survey and Investigation,Chengdu 610081,China)

机构地区：[1]成都市勘察测绘研究院,四川成都610081

出　　处：《城市勘测》2022年第3期53-55,59,共4页Urban Geotechnical Investigation & Surveying

摘　　要：努力提高基础测绘的服务水平是促进城市勘测单位转型和发展的有效保障。本文以新型基础测绘为导向,以院落为数据更新的最小格网单元,从新增要素的实体化改造方法、数据格式转换、数据质量控制等方面入手,探索城市1∶500 DLG更新入库方法,逐步形成数据管理去冗余化、图库建设一体化、实体应用社会化为特征的城市大比例尺地形图更新机制。Improving the service level of basic surveying and mapping is an effective guarantee to promote the transformation and development of the departments about urban surveying and mapping.Guided by the new basic surveying and mapping,and taking the courtyard as the minimum grid unit of the data updating,this paper explores a kind of urban 1∶500 DLG updating and warehousing mode from the aspects of the new elements'entity transformation method,the data format conversion,the data quality control,etc.The results gradually form a large-scale topographic map updating mechanism by the de redundancy of data management,the integration of map database construction and the socialization of entity application.

关 键 词：新型基础测绘 城市大比例尺地形图更新 

分 类 号：P208.1[天文地球—地图制图学与地理信息工程]