【摘要】 该文简介关于ArcSDE数据库在地理信息系统中的重要应用及支持存储栅格数据的ESRIArcSDE产品。重点讨论ArcSDE存储栅格数据的原理及应用。在“数字清江”项目的研究开发中 ,尝试了应用ArcSDE和ORACLE关系数据库对清江流域空间数据和属性数据的统一管理。水文水情空间数据查询显示和流域虚拟现实及水情可视化仿真作为该系统的应用功能 ,都以上述空间数据库为基础。达到了管理方便 ,实时数据采集效率高 ,为系统仿真运行提供了优良的数据平台。更多还原

【Abstract】 This article introduces the important usage of ArcSDE database in Gis and gives a brief introduction about ESRI ArcSDE. Here we focus on discussing the storage theory of Raster data used by ArcSDE and its application .This arcticle gives an example to show its powerful functions.In project Digital Qingjiang we use it to store and manage spatial data in a chosen DBMS Oracle,As a high-performance application server to deliver spatial data to many applications, ArcSDE plays a fundamental role in such project which makes it easy to manage spatial data in the unique Oracle database and powerfully to deliver realtime data to our query system and simulation system.更多还原