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

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