摘要
针对全球海量多源空间信息之间关联关系建立困难的问题,提出了基于全球剖分框架的多源空间信息区位关联模型解决方案。首先,采用GeoSOT剖分框架对多源空间信息进行统一组织与管理;然后,根据提出的"对象-面片-数据"空间信息三层组织机理概念模型,设计并实现了基于全球剖分框架的多源空间信息区位关联模型;最后,进行了多源空间信息区位关联模型的综合表达应用实验。实验结果表明:本模型可以有效地建立起地理对象与多源空间信息之间的区位关联关系,可有效提升海量多源空间信息的空间关联与表达应用效能。
Traditional GIS lacks the ability to establish the relationship between geographic object and its related global massive multi-source spatial information. GeoSOT subdivision framework was used to organize and manage multi-source spatial information in a unified manner, and ＂Object-Mesh-Data＂ three-layer spatial information organizational mecha- nism was put forward. Based on this mechanism, multi-source spatial information area-location association model was designed to support association and query of spatial information. In order to validate this model, multi-source spatial in- formation comprehensive expression experiment was carried out. The experiment result proves the effectiveness of this model, which can improve the application performance of massive multi-source spatial information.
出处
《计算机科学》
CSCD
北大核心
2013年第5期8-10,共3页
Computer Science
基金
国家973计划项目(61399)资助
关键词
地球剖分
GeoSOT剖分框架
多源空间信息
区位关联
综合表达
Global subdivision
GeoSOT subdivision framework
Multi-source spatial information
Area-location associa- tion
Comprehensive expression
