摘要
空间数据管理是GIS系统的核心。对于选择ArcSDE实现分布式空间数据管理的系统,如何与ArcSDE交互,实现空间数据的存储和发布是系统必须解决的关键问题。ArcSDE提供多种访问机制,但是这些机制都无法满足"青藏铁路地理信息系统与数字路基"系统的需要,因此,提出了以.Net平台支持的"托管"代码形式封装ArcSDE的客户端C语言API的方法:不仅为解决系统对空间数据的访问和管理等问题提供了一个实现平台;而且以面向对象的方式提供功能访问接口,易于理解和使用。此外,还探讨了封装类的组成、类之间的相互关系以及封装过程中需要解决的技术要点。
Spatial data Management plays a very important role in GIS system; thereby how to interact with ArcSDE is a key technique of storing and access spatial data for which using ArcSDE to implement the management of spatial data. There are several ways can be used to connect ArcSDE, but none can meet the need of spatial information storage and management in the GIS and Digital Roadbed of the Qinghai-Tibet Railroad System. Therefore, this paper explained the approach of encapsulating the ArcSDE Client API for C programmers into the form of managed code, it not only provides a platform to resolve the issues of spatial data management, but also bring forward an interface which followed the principle of OOP. The framework and relationship of the classes, as well as the key techniques in our work is also discussed.
出处
《遥感技术与应用》
CSCD
2004年第5期368-373,共6页
Remote Sensing Technology and Application
基金
中国科学院知识创新工程重大项目(KZCXl-SW-04)
中国科学院寒区旱区环境与工程研究所知识创新工程项目(220014-06A)资助。
关键词
空间数据库引擎
系统封装
.Net青藏铁路
Spatial database engine, System encapsulation, .Net, Qinghai-Tibet railway
