【作者】 舒红； 陈军； 许云涛；

【Author】 Hong Shu~1,Jun Chen~2,Yuntao Xu~3 (13 LIESMARS at Wuhan Technical University of Surveying and Mapping,Luayu Rd.39,Wuhan 430070) (2 National Geomatics Center of China,Baisheng Village 1,Zizhu yuan,Beijing 100044)

【机构】 武汉测绘科技大学测绘遥感信息工程国家重点实验室； 国家基础地理信息中心；

【摘要】 传统的时空复合数据模型,以复合节点、弧段构造复合点、线、面图形单元来组织时空数据,它分解了地理实体的空间完整性,属一种附有时变属性序列值的空间场概念模型。结合空间对象模型SDTS,本文使用复合节点、弧段构造点、线、面地理实体对象来进行时空数据建模,这种模型吸收了时空复合模型节省存储空间的优点,同时在高层次上维持了地理实体的空间完整性,称为地理实体与复合弧段结合的时空对象模型。更多还原

【Abstract】 Traditional spatio-temporal composite data model,which organizes spatio-temporal data into composite point、line and area graphical units constructed of composite nodes、composite arcs, divided integrity of the geographical entity,it is a conceptual space model with many space fields with a sequence of time varying attributes.In this paper,we suggest constructing geographical entities with composite nodes、composite arcs,it doesn’t only make use of advantages of saving storage space in spatio-temporal model at low level,but also maintains space integrity of the geographical entity at high level,here it is called a spatio-temporal object model based on geographical entities and composite arcs.更多还原