递归算法在改进基态修正时空数据模型多级历史回溯中的应用  

Application of Recursion Algorithm in Multilevel Historical Review Based on the Improved Spatial-Temporal Data Models of Base State with Amendments

作　　者：王履华 孙在宏[1,2] 吴长彬[1,2] 狄晓涛[1,3] 

机构地区：[1]南京市地理信息应用工程技术研究中心,江苏南京210036 [2]南京师范大学地理科学学院,江苏南京210097 [3]南京大学地理与海洋科学学院,江苏南京210046

出　　处：《地理与地理信息科学》2013年第3期26-29,共4页Geography and Geo-Information Science

基　　金：国家自然科学基金项目(41101350);江苏高校优势学科建设工程资助项目

摘　　要：在对基态修正时空数据模型研究现状和存在问题分析的基础上,以单个GIS空间对象的全生命周期管理为主线,解决其多级历史回溯过程中的效率和展现问题。提出一种改进基态修正时空数据模型的表述方式,并设计双向递归算法,实现空间数据在频繁变化下历史关系的高效检索。使用GIS时态播放器,以动画形式描述变更过程,直观展示空间对象的历史演变关系。最后,以地籍管理中的宗地变更为典型实例,建立应用系统,实现了宗地数据历史关系的有效管理。Temporal GIS is one of the most important parts in GIS research. According to existing problems of several typical spatial-temporal data models of base state with amendments,this paper proposed a new method based on the life cycle management of single GIS element to solve the efficiency and display problems of multilevel historic review. In the study,a new presentation of improved spatial-temporal data model of base state with amendments was applied. A recursive algorithm was designed to improve the efficiency of history data query under the frequent changes situation. In addition,a TGIS player was proposed to display lhe historical evolution process of GIS elements. In order to validate and evaluate the practicability of the model, the study took the cadastral management for example at last.

关 键 词：时空数据模型 多级历史回溯 生命周期管理 时态GIS播放器 宗地变更 

分 类 号：P208[天文地球—地图制图学与地理信息工程]