摘要
地理信息系统的一项主要任务就是对海量的地理信息进行优化处理。本文对空间元数据进行了概念阐述,结合信息技术的新发展,建立了一种基于元数据的地理信息系统数据集成平台。针对地理信息系统数据平台要存储海量数据的特点,以及矢量地图数据的3种基本拓扑元素,给出了拓扑关系进行局部更新的方法。而且可以通过对基本拓扑更新方式以组合的方法实现复杂编辑操作的拓扑更新。
A major task of the geographic information system was to optimize large geographical information. This paper expounded the concept of spatial metadata, with the new development of information technology, established a geographic information system data integration platform that based on metadata. According to the characteristics of store massive data of geographic information system data platform, and the three basic topological elements of vector map data, topological relations for the partial update modes were given. But also through the basic topology update modes with combination method to achieve topology update of the complex edit.
出处
《科技通报》
北大核心
2013年第8期85-87,共3页
Bulletin of Science and Technology
关键词
地理信息系统
空间元数据
数据集成平台
拓扑关系
geographic information system
spatial metadata
data integration platform
topological relations
