摘要
地理信息系统的迅速发展和广泛应用积累了大量数据资源,它们存储的数据格式互不相同,导致了空间数据多源性的产生,给数据综合利用和数据共享带来不便。本文阐述了多源空间数据的产生、表现并对多源数据的集成方法进行了探讨,给出了实现多源数据集成的数据格式转换、数据互操作和直接数据访问方法。最后展望了多源数据集成的发展方向。
GIS has accumulated a number of data resource in quick development and extensive application. Its data format is different from each other,so the multi -source spatial data comes out and inconvenience is appeared in synthetically exploiting and sharing. This article elaborates the production and performance of multi - source spatial data and discusses multi - source data integration meth- ods. It described three means to realize data integration： data format exchange, data interoperability, direct data access. At last, the developmental direction of the integration module of multi - source spatial data is emphasized and expected.
出处
《测绘与空间地理信息》
2009年第1期102-106,110,共6页
Geomatics & Spatial Information Technology
