The Study And Application Of The Data Sharing In WebGIS Based On XML

Before,GIS,SCADA,MIS is a mutual system of independent existence.Most of these data resources consist in various systems and isolate.If these systems integrate with each other,and shares each other's data,make SCADA's data and MIS's data are more visual showed on the GIS map,this is a major development trend of Distribution network.According to the disadvantage of WebGIS of dealing with a large sum of data,this paper put forward a valid way to store and use the distributed data,introduces the technique of maping and transforming between XML data structure and relation-database data structure,describes the query and visualized technology of XML in WebGIS.At last,it uses ArcIMS to construct a distribution network GIS system,realizes parts of key function,and puts this system on the Internet to prove the system's feasibility.