面向对象的基础地理数据库系统的设计与实现

Design and Realization of Fundamental Geographic Information Management System

由于地形图与GIS数据所依据的数据模型的差异,基于地形图建立的基础地理数据库系统往往不能同时满足地形图和GIS数据的服务要求。另外,直接面向图层的数据管理模式,割裂了地理要素之间的自然联系,给数据的管理应用带来了不便。针对以上问题,本文提出了面向对象的基础数据库系统的实现思路,阐述了相关设计及实际应用。

Because of the difference between DLG and GIS data, the fundamental geographic information database based DLG can＇ t satisfy the need of DLG and GIS data at the same time. In addition,the data management method di- rectly face the data layer divides the nature relation of the geographic features and is not convenient to apply. Aim at the problems above, this paper provides the way to realize the object-oriented fundamental geographic information database, and describes the relative design and application.