GIS Park

Traditional geographic information service platform can’t afford a good way to solve the problem of heterogeneous and interoperability well, which exist in spatial data and operating systems. With the rapid development of WebGIS and the utilization of Web Services technology in GIS, the new generation of WebGIS technology framework spatial Web Services platform come to use.The framework embodies new concept as“service is software and software is service”. The user experience of interface is also essential to WebGIS applications, in addition to high quality of service. The emergence of Ajax technology makes it possible update the whole web page dynamically, or that will take bad feelings to users.In this dissertation, systematic research is done on combination applications of spatial Web Services platform (ArcGIS Server) and Ajax technology. Main work completed is as follows:(1) Based on the concept and implementation technologies of WebGIS, this dissertation elaborate the new generation of WebGIS service platform detailedly, as well as the status quo of spatial Web Services platform at home and abroad.Meanwhile, the content and significance of the research are clarified.(2) The dissertation focused on the basic architecture, management and development methods of ArcGIS Server, which is the platform framework of spatial Web Services. Based on ArcGIS Server, the composition and implementation mechanism of Ajax framework are analyzed, also the basic elements and implementation principles of Ajax technology are introduced.Futher more, this dissertation analyze the framework of ArcGIS Server Ajax on the basis of Asp.Net Ajax.(3) A query system of urban transportation has been accomplished base on ArcGIS Server and Ajax. This dissertation introduces the requirement analysis, overall design, database design and function achievement of the system.For the moment, the solutions and prototype system to build spatial Web Services based on ArcGIS Server and Ajax have been applied to the project named“Anhui Map”, which is a query system of urban transportation.Up to now, the system have achieved user good appraise.