基于ArcIMS的公路地理信息系统——以广东公路地理信息系统为例

The Road Web Geographical Information System Based On ArcIMS——Taking the Road Web Geographical Information System of Guangdong Province for Example

WebGIS是GIS与国际互联网的有机结合,是GIS在广域网环境下的一种应用,是以实现空间信息的网络化为最终目标,以便以地图形式向广大网络用户提供定性和定量查询信息的计算机信息系统.本文以广东公路地理信息系统为例,对WebGIS、地理标记语言以及基础地图数据的处理做了相关介绍,并对系统的的三层构架(表示层、业务层和数据层)进行了详细分析,系统利用ArcIMS的ArcMapServer地图服务,通过ArcSDE中间件和SQL Server2000数据库存储和管理影像和地图数据,利用ArcIMS定制HTML Viewer的开发方式实现了WebGIS.

WebGIS is an organic combination of GIS and the World Wide Web. It is an application of GIS under the Wide Area Network. The final target of it is to achieve the networking of spatial information. It is an Computer Information System which can provide polling messages with particular property or amount, so it is convenient to vast net users. Taking the Road Web Geographical Information System of Guangdong Province for example, this topic has presented interrelated introduction about WebGIS, Geography Markup Language and the procession of basic map data. Also, it makes a detailed analysis of three-layer structure of the system. This system takes advantage of the map service about ArcMap Server of ArcIMS, middleware of ArcSDE, database of SQL Server2000 to store and manage image data and map data. By using HTML Viewer under ArcIMS, WebGIS is achieved.