基于MapGIS数据中心构建基础地理信息地图集模型

Building Basic Geographic Information Mapset Model Based on MapGIS Data Center

分析国家基础地理信息的数据内容及组成,基于MapGIS面向实体的空间数据模型,采用MapGIS数据中心的思想,类比主流数据库的数据模型,建立地图集模型,并对该模型的特征进行研究.描述了基于模型的空间数据建库、库一体化管理与表现和数据库的安全控制与维护等基本操作,并将此模型应用在国家基础地理信息数据库系统建设中.

In order to manage huge data of basic national geographic information,analyze data contents and composites of national basic geographic information,we build a mapset model based on entity-oriented spatial data model of MapGIS,adopting the ideas of MapGIS data center,and making an analogy of the mainstream data model of database.A study is carried out on the model,including probing into its characters,introducing its basic operators,such as building spatial database,integrated management and performance of spatial database,security control and maintenance of spatial database based on mapset model,and applying the mapset model in building national basic geographic information database system.The result shows the model has potential impact on all geographic information system（GIS） applications.