一个基于对象代理模型的多表现地理信息系统  

Multi-representation geographic information system based on object deputy model

作　　者：彭智勇[1] 彭煜玮[1] 翟博譞[2] 

机构地区：[1]武汉大学软件工程国家重点实验室,湖北武汉430072 [2]武汉大学计算机学院,湖北武汉430072

出　　处：《计算机应用》2006年第9期2016-2019,2023,共5页journal of Computer Applications

基　　金：国家自然科学基金资助项目(60573095);教育部新世纪优秀人才计划资助项目(NCET-04-0675);教育部博士点基金资助项目(20050486024);软件工程国家重点实验室开放基金资助项目(SKLSE05-01)

摘　　要：文中提出了一种基于对象代理模型的实现多表现GIS的新方法。通过地理对象的代理对象来定义多表现,因此代理对象可以用来表示对象的视角多样性和角色多样性。通过对象更新迁移可以支持动态分类和系统一致性维护。另外,对象及其代理对象之间的双向指针使得跨类查询变得非常容易,从而可以扩展查询的范围。文中实现了一个基于对象代理模型的多表现GIS原型,性能测试表明该方法比传统的方法更加有效。A new approach to realize multi-representation GIS（Geographic Information System） based on object deputy model was proposed. It allows geographic object to have multiple deputy objects which can be defined as its multiple representations since deputy objects can be used to represent object views and role multiplicity. Through object update propagation, this approach can support dynamic classification and maintain system consistency. In addition, bilateral links between objects and their deputy objects facilitate cross-representation query. A multi-representation GIS based on object deputy model had been implemented. The experiment shows our approach is more efficient than the traditional one.

关 键 词：多表现 地理信息系统 对象代理模型 

分 类 号：TP311.132[自动化与计算机技术—计算机软件与理论]