The Design and Implementation of GML Data Management Information System Based on PostgreSQL

摘要：

GML expresses geographic information in text,and it provides an extensible and standard way of spatial information encoding.At the present time,the management of GML data is in terms of document.By this way,the inquiry and update of GML data is inefficient,and it demands high memory when the document is comparatively large.In this respect,the paper put forward a data management of GML based on PostgreSQL.It designs four kinds of inquiries,which are inquiry of metadata,inquiry of geometry based on property,inquiry of property based on spatial information,and inquiry of spatial data based on location.At the same time,it designs and implements the visualization of the inquired WKT data.

关键词： PostgreSQL GML WKT inquiry visualization

作者: ZHANG Aiguo WU Qunyong XU Qifeng

作者单位: Spatial Information Research Center of Fujian Province,Key lab of Data Mining and Information sharin Spatial Information Research Center of Fujian Province,Key lab of Data Mining and Information sharin

会议类型: 国际会议

会议名称: 第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-06-28（万方平台首次上网日期，不代表论文的发表时间）