基于对象的国土基础信息标准研究

国土基础信息是GIS管理、处理、分析、交换的主要信息内容之一 ,因此 ,国土基础信息标准对GIS理论研究、系统软件开发、应用软件开发及信息采集与应用具有重要的指导作用 ,目前关于国土基础信息的标准沿用传统的规范、图式、编码 ,较适应于计算机绘图或传统的制图 ,没有从空间数据库的角度提出实体及其关系、模式 ,因而 ,使得国土基础信息在交换过程中在图形级别上得到兼容 ,以此为标准交换信息在各个系统之间要丢失有用的信息 ,增加了作为空间信息为主题的GIS的标准的不统一 ,重复工作量加大 ,应用受到限制。针对这一问题 ,提出了国土基础信息的标准模式 ,按照这一模式建立空间数据标准 ,不仅可延续现有的传统标准 ,同时 ,能完整地体现地理对象的内涵及关系 ,试图为GIS的数据采集、交换、统计、空间分析提供一个统一的模式。

RESEARCH OF THE STANDARD FOR RESOURCE AND ENVIRONMENTAL INFORMATION BASED ON OBJECT

Resource and environmental information is a major object that GIS manages, processes ,analyzes and exchanges, therefore , the standardization of resource and environmental information plays an important role in GIS theoretical study, application software development,and information capture and application.Today's standardization which adopts traditional specifications and codes only suits computer air mapping or traditional mapping ,does not represent spatial entity and their relational pattern , therefore, the state makes resource and environmental information incompatibily , unconsistent ,losses in the exchange course between different systems.Aiming at the problem ,this article proposes a kind of standardization mode, the study showes that the mode not only expands traditional specification but also completely represents mode properly and relation in order to provide a consistent specification for GIS data's capture ,exchange and spatial analysis.