Spatial data management for WebGIS  

作　　者：ZhongZhinong JingNing ChenLuo WuQiuyun 

机构地区：[1]CollegeofElectronicScienceandEngineering,NationalUniversityofDefenseTechnology,Changsha410073,P.R.China

出　　处：《Journal of Systems Engineering and Electronics》2004年第4期760-765,共6页系统工程与电子技术（英文版）

摘　　要：Spatial data management is an important factor that affects the performance of WebGIS. In this paper, spatial data management for WebGIS is discussed from two aspects: spatial data model and data storage. Can'rent data models and storage methods are analyzed and compared. According to the requirments of spatial data management for WebGIS, a spatial data model is proposed, which organizes spatial data in four levels: geometry, feature, layer and map. Based on this model, spatial data are managed and stored in object-relational database management system (ORDBMS).

关 键 词：WEBGIS 空间数据管理 空间数据库 ORDBMS 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论] P208[自动化与计算机技术—计算机科学与技术]