摘要
本文分析了地理空间数据源的异构性以及GML模式的异构性;提出以GML模式对地理空间要素进行建模,构建适合空间信息共享的GML基本地物规范模式;通过应用模式的结构去屏蔽不同数据源结构的异构性,通过对应物属性去屏蔽编码语义的异构性,使空间信息的共享与互操作有统一的语义基础。
This paper analyzed the heterogeneity of spatial data sources and GML schema,the modeling method based on GML schema was proposed to model geography spatial features and construct basic feature criterion schema for spatial information share;application schema structure was used to shield the structural heterogeneity of different data sources,counterpart attributes were used to shield the heterogeneity of GML schema,therefore the semantic foundation for spatial information share and interoperation could be achieved.
出处
《测绘科学》
CSCD
北大核心
2012年第1期38-41,共4页
Science of Surveying and Mapping
基金
精密工程与工业测量国家测绘局重点实验室基金项目
