Technology Research, Published Xml-based Map Network

With the great development and extensive application of Internet Technology, WWW is becoming an efficient way to publish information, and provide a new and effective media for delivery and publishing of geographic information. It is a focus that the research of map web publishing. But map web publishing is facing to new challenges for further development, which can solve the opening problem about map web publishing. As a new web technology, XML bring new opportunity for web map publishing.At first, this paper analyzes the difficulties and problems of map web publishing technique, and then puts forward the solution of map web publishing and discusses the main problems needed to be solved. Second this paper puts great emphasis on the application of the new web technique in the field of geographic information, and studies deeply on the XML-based map web publishing technique, then puts forward the model of GML-based multi-source spatial data integration, and designs the data translation engine which can solve the problems about multi-source spatial data integration and sharing. Lastly this paper puts forward the SVG-based display project of map at web client, and represents the method to describe map symbols, so it would solve the problems about multi-display and inter-operation of map at web client.The model of XML-based map web publishing, the model of GML-based multi-source spatial data integration and the method of SVG-based map symbols describing and the visualization of map data are put forward in this paper have many signification to the map web publishing technology.