一种有效的GML空间数据存储方式  

An Effective Storage Mode for GML Spatial

作　　者：龙文星[1] 胡川[1] 

机构地区：[1]四川建筑职业技术学院交通系,四川德阳618000

出　　处：《城市勘测》2009年第6期31-35,41,共6页Urban Geotechnical Investigation & Surveying

摘　　要：Internet的出现使GIS发生了巨大的变化,通过网络技术的支持,把原来相互独立的GIS数据与操作功能变成了共享性型GIS,这迫切需要解决好GIS的共享问题。GML也正是出于对数据的共享由OGC在上世纪90年代提出的一种空间数据规范。它能很好地解决GIS的数据共享问题。大量的GML数据的产生,如何高效管理、存储、分析以及查询这些数据成为研究的重点、热点。本文在分析当前的研究现状以及GML数据结构、模型、模式的基础上,通过对本原XML数据库(NXD)研究,提出了GML空间数据的本原模式聚合存储方式,通过扩展NXD给予实现。At present, GIS have a huge change under the emergence of Internet,These independent of each other GIS data and operation had become the shared GIS through the support of net technology. Therefore we should to resolve the issue of sharing for the GIS. Geography Markup Language is an XML grammar written in XML Schema（World Wide Web Consortium,2003） for the modelling,transport,and storage of geographic information. So GML was the best choice to resolve the sharing question. A large number of GML data generated the efficient management, storage,analysis and query for these to become the focus of the study, as well as hot spots. In this paper we analysis the current status of study and GML data structure,model, schema, to research the native xml database proposed to native GML database to store this GML data and to practiced it extent the native xml database.

关 键 词：数据库 GML GIS 本原 存储 

分 类 号：P208[天文地球—地图制图学与地理信息工程]