Principle And Application Of Web GIS Based On The Open Source Platform

With the continuous development of Internet technology and geographic information systems(GIS) applications continue to increased demand,the use of web publishing of spatial data,real-time professional for the general and specific types of users with basic requirements or thematic categories of spatial data browsing,query and analysis services,that has become GIS's main task of development and an inevitable trend.Came into being for the Web GIS geographic information and the web publishing service providers based on a realistic platform.In the Web based on,GIS can be a strong function of the expansion and extension, GIS into the tens of thousands of households through the network era has arrived.This article introduced the first system,the concept of Web and the basic knowledge involved in,Web GIS analysis of physical composition,the basic principles and at this stage of Web GIS in several ways to achieve.And reality in the feasibility of multi-argument based on the comparison,Several of the more popular among domestic commercial Web GIS platform, especially its core technology for evaluation of the strengths and weaknesses,in order to determine the work of Web GIS applications and solutions envisaged in this paper.According to CSTIND the "nuclear power plant engineering geological database and information system" project specific needs,Web-based platform for open source(Apache + Tomcat) with ArcIMS module,design,production and set up a nuclear power plant released feature information-based Web GIS Application System,intranet based on the initial realization of the nuclear power plant map data network publishing and retrieval,basic functions such as query,Web GIS platform of thematic geographic information system development,especially in information publishing,technology operation has done a useful exploration.The entire project in research and thesis writing process to obtain the following main results and harvest:1)Comprehensive learning and skills development of the WebGIS the basic theories and methods;2)According to the demand of project and the development of WebGIS,contrary to Project thematic information,identified realistic release,retrieval,query package solution;3)Based on Open-source Web platform,with ArcIMS Module,the formation of information release platform of Web GIS,realization development and application of the Web GIS;4)Based on Java development platform,according to the demand of project for Nuclear Engineering Investigation Institute,design,produced a nuclear power plant online version of pages of documents and online version of map data;5)In the formation of open-source Web-based platform for the WebGIS system,published information on the nuclear power plant projects,the demand for the realization of this project information,retrieval,query and other basic functions;6)In the Web GIS platform,implementation of a wide range of data(Shapefile,image data format) of information.