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GIS时空数据模型是描述空间实体的时间特性和空间特性的有机体,是GIS存储、再现、分析动态的现实世界的基础。该文采用面向对象的思想将地理实体抽象为空间对象,对空间对象的空间几何信息、属性信息、时间信息进行封装,提出了基于对象的GIS时空数据模型的构建方法。重点探讨了基于对象的地理实体描述方法、空间对象的时态特征和时态数据的存储方法,为时空信息的有机集成、共享管理、决策分析与应用提供了关于时空数据组织与管理模式的新思路。 更多还原

【Abstract】 GIS spatio-temporal data model is the organism which is used to describe the temporal and the spatial characteristics of spatial entities.It is also the foundation for GIS storage,reproduction,analysis of the dynamic real-world.The study presents the building process of GIS spatio-temporal data model based on object by adopting the object-oriented principle that geo-entities were abstracted as spatial objects whose geometric information,property information and temporal information were encapsul...