摘要
随着WebGIS和相关技术的发展,WebGIS中多源数据的融合已成为迫切需要解决的问题。分析了WebGIS数据融合的难点,介绍了开放技术GML。设计了以GML为框架的WebGIS数据融合系统,介绍了系统中4大模块即分布式异构空间数据源、WebGIS元数据服务、GML数据服务和WebGIS数据融合管理的功能,讨论了WebGIS数据融合的工作流程。此设计为解决WebGIS数据融合的难题提供了一条可行之道,对促进WebGIS的发展具有积极的意义。
With the development of WebGIS and its relative technology, how to fuse the WebGIS data in different formats from various sources has become a problem to be solved urgently. At first, the difficulties of WebGIS data fusion are analysed, and then the open technology of GML isintroduced. Based on the above, a WebGIS data fusion system under GML framework is designedand thefunction of four modules is detailedly discussed including distributed heterogeneous spatial data source、WebGIS metadata service、GML data service and WebGIS data fusion management. The working processing of WebGIS data fusion are explored. An executable way for the difficulties of WebGIS data fusion is provided, which has an active meaning for promoting the development of WebGIS.
出处
《计算机工程与设计》
CSCD
北大核心
2005年第5期1166-1169,共4页
Computer Engineering and Design
基金
湖南省自然科学基金项目(00JJY2059)
湖南省教育厅省属高校科研基金项目(02C089)
