摘要
在.NET环境下运用面向对象技术对地理空间数据进行合理组织,根据地物分类编码和制图综合知识对数据进行显示等级界定,从而在一定程度上解决地理空间数据多尺度表达的问题;将空间数据和属性数据同时存储,解决了数据在一致性维护、并发控制以及海量空间数据存储管理上的缺陷;根据图幅和分层来建立R树索引,提高了索引的速度。
With using OOP to organize Geo-Spatial data rationally based on. NET and setting the showing rank of data according to object code and knowledge of cartography integration, to some extent, it solves the problem of how to display multi-scale Geo-Spatial data; The spatial data and attribute data are stored at same time, that settles the limitation in data management and maintenance;R-Tree index is established to improve the query speed according to maps and layers.
出处
《测绘工程》
CSCD
2008年第4期25-27,共3页
Engineering of Surveying and Mapping
