Then, the principles, types and methods of data partition are given in the context of the distributed spatial databases.
给出分布式空间数据库的空间数据划分原则、分布式空间数据分段的类型和空间数据关系的分段操作方法。
Spatial data is distributed essentially. There are much more researches in integrated spatial data model but fewer in distributed spatial data.
空间数据本质上是分布的，目前对集中式空间数据模型进行了大量的研究，而在分布式空间数据的研究方面尚处于起步阶段。
Since distributed spatial database will be the main data source of Internet GIS, we have to cope with the intercommunication between heterogeneous databases and systems.
随着空间数据获取能力的飞速发展，分布式存储管理的空间数据库将成为网络GIS的主要数据源。
The distributed spatial data registration container is one of the most important spatial data discovery mechanisms in the platform of National Geological spatial Information Grid (NGSIG).
分布式空间数据注册容器是国家地质空间信息网格(NGSIG)平台内一种重要的数据发现机制。
Spatial data managing grid can integrate all distributed data into a super-large, virtual spatial DB, it can realize to manage magnanimity spatial data of the whole country or global.
空间数据管理网格将物理分布的空间数据在逻辑上组成一个超大虚拟的空间数据库，实现全国乃至全球的海量空间数据的管理。
Based on the unified data modeling, this resolution realizes the uniform request service to distributed heterogeneous spatial data by metadata and multi-database system.
该解决方案通过建立统一的数据模型，使用元数据与多数据库系统实现了对分布的异构的空间数据的统一访问请求服务。
Distributed geographic information is analyzed and data model of geographic spatial information is proposed.
论文对分布式地理信息进行分析，提出了地理空间信息的数据模型。
However, the theory and the practice of distributed GIS need further improvement in virtue of problems brought by the spatial data.
在地理信息系统领域，由于空间数据的特点，分布式地理信息系统的理论和实践还有待完善。
However, the theory and the practice of distributed GIS need further improvement in virtue of problems brought by the spatial data.
在地理信息系统领域，由于空间数据的特点，分布式地理信息系统的理论和实践还有待完善。
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