城市基础地理信息系统建立的几个问题

On the Establishment of Urban Fundamental Geographical Information Systems

从城市基础地理信息的数据内容、地图比例尺、位置精度、空间数据的拓扑关系及数据更新等方面 ,讨论城市基础地理信息系统的建立。

This paper discusses the establishment of urban fundamental GIS through introducing the data connotation of urban base geographic information,map scale,positioning precision,spatial topology relation,data revision and so on.