基于开源软件的WebGIS框架设计

Design of WebGIS framework based on open source software

WebGIS网络地理信息系统是Internet技术应用于GIS地理信息系统开发的产物。在互联网环境下,以Web页面作为GIS软件的用户界面,把Internet和GIS技术结合在一起,可为各种地理信息应用提供GIS功能,以提高系统性能,使用户共享互联网资源。为此,在开源软件的基础上,通过使用GeoServer、PostGIS数据库和OpenLayers实现了WebGIS的展示层、处理层和数据层三层体系框架。

WebGIS Intemet geographical information system is the product of the Internet technology applied to GIS. Based on Intemet environment, taking the web page as the user interface of GIS software, combining the Internet with GIS technology, GIS function is offered for various geographic information applications, in order to improve performance, satisfy users＇ needs and share the Internet resources. A three-layer framework （presentation layers, processing layers, data layers） about WebGIS on the basis of open source software such as GeoServer, PostGIS and OpenLayers is implemented.