基于空间数据库的多媒体图形查询信息系统研究——以苏州河环境综合整治为例

本文介绍作者自行开发的GIS软件系统———基于空间数据库的多媒体图形查询信息系统的内容、结构和功能 ,以及在环境规划管理方面的应用。阐明了系统可满足决策管理层和公共信息发布层等不同层次的应用需求 ,对环境工程项目的规划管理可作为示范和借鉴。说明本系统除具有一般GIS系统所具有的功能外 ,还把现代多媒体技术和GIS空间数据库技术结合起来 ,实现了在空间数据基础上的多媒体信息查询 ,丰富了GIS中属性数据查询的内容 ,提高了地图的可视性。详细介绍了一种地理信息系统的空间分析方法———包含分析的算法和在本系统中的具体应用———按多边形区域进行空间相关性关系查询。

Research on multimedia graphics information system based on spatial database: a case study on the integrated environmental management of Suzhou River

This paper introduces a self made GIS software system a multimedia graphics query information system based on spatial database, including its structure, function and application in environmental planning and management It presents that this system can meet the needs for applications in decisional management level and public information release level and can be used as a valuable example for planning and managing the environmental projects Besides some common functions of GIS system, the system we made also integrated modern multimedia technology with traditional spatial database, hence the multimedia information query based on the spatial database came true This function not only enriched the query content of attribute database, but also improved the visualization of map information In this paper, we specially focus on the details of the spatial analysis method including the algorithms and their actual implementation in this system queries according to the rectangle, ellipse(circle), arbitrary region and spatial co relation