摘要
介绍了当前网络型GIS的空间地理数据的传输方法,并在介绍网格GIS特点的基础上分析了其优缺点。由此引入GML(Geography Markup Language),分析其在网格GIS应用中所特有的优越性,进而探讨了如何在网格GIS中应用GML描述空间地理数据,设计网格GIS通信机制,以解决网格GIS中空间地理数据的存储和传输的问题。
This paper introduces the spatial data encoding and transfer methods on the present network-based GIS, analyses the shortcoming of them according to the characteristic of the Grid GIS and subsequently proposes a new methold,that use GML to store and transfer spatial data. Finally it discusses emphatically how to use GML to encode spatial data,and design the communication mechanism of Grid GIS.
出处
《计算机工程》
CAS
CSCD
北大核心
2004年第10期49-50,174,共3页
Computer Engineering
基金
国家"863"计划基金资助项目(2002AA135230)
国家自然科学基金资助项目(40101021)