测绘科学技术学报2013，Vol.30Issue(3)：284-287,4.DOI:10.3969/j.issn.1673-6338.2013.03.015
基于全球剖分网格的空间数据编码方法
Spatial Data Coding Method Based on Global Subdivision Grid
摘要
Abstract
The coding rules of spatial data from different sources usually differ from each other,which is difficult for spatial retrieval.In order to solve this problem,a coding method for spatial data based on GeoSOT global subdivision grid was proposed,its characteristics and advantages were discussed,and the efficiency of code generation and spatial retrieval were tested.The result showed that the coding algorithm based on GeoSOT was with high efficiency; the spatial retrieval in rational database based on GeoSOT was more efficient than that based on latitude and longitude coordinates and R-tree index,and the smaller of the query region the better of the performance.关键词
全球剖分/全球剖分网格/空间数据/GeoSOT网格/空间编码/空间检索Key words
global subdivision/ GSG/ spatial data/ GeoSOT/ spatial code/ spatial retrieval分类
天文与地球科学引用本文复制引用
金安,程承旗..基于全球剖分网格的空间数据编码方法[J].测绘科学技术学报,2013,30(3):284-287,4.基金项目
国家重点基础研究发展计划(61399). （61399）
