The The Of Jinan Urban Areas Webgis System Design And Realization

For the information times today, information has grown into the first precious wealth. How to make full use of information resources is the key issue for IT research. The information, which is directly or indirectly related geography space, is about 80% of all informations. GIS (Geography Information System) is one that utilizes spatial data resources. It combines spatial data with property data and realizes the visualization for information. So Geography information has developed into a tremendous industry.In fact WebGIS brings forth its GIS function on the basis of Web. It is a network geography information system that bases on the technology standard and communication agreement of Internet .GIS broadens itself by the function of WWW and really grows into a tool used by the masses. WebGIS not only cultivates new field of geography information system utilization, but also provides the possibility for highly socialized share in GIS.Being the main technology support in the earth of data, WebGIS has become a very important research direction in the field of IT.The paper mainly centers on the research and realization of"WebGIS system on the basis of GeoMedia Webmap". Starting from the general concept, this paper further discusses the character of WebGIS and realization technology .The emphasized part is the study of information platform and realization technology in WebGIS system by using GeoMedia WebMap.The paper comes from the achievements of WebGIS prototype system based on GeoMedia WebMap.On the basis of that system, I have the following creative ideas:1,Finished the dynamic vector of spatial information.2,Designed and accomplished a complete set of spatial database for Jinan city.3,Realized the making of flexibly special topic map.4,Favored telecommuting edition of geometry.The paper ends with the saying that as stage achievements, the system has accomplished most of expected aims. There are still more to be further studied and cultivated.