Research And Development On The Graphics-aided System For Examination And Approval Of Construction Land Based On ArcGIS Server The Technique

With the more and more heavier demands for construction land, the task of top priority emerges to establish WebGIS system for the examination and approval of construction land. This paper servers the purpose of resolving the problems exposed in the current system such as each doing things in its own way, lack of intercommunion, repeated construction, weak information resources sharing and cross platform sharing.By means of a thorough study of status in quo of system based on WebGIS for the examination and approval of construction land at home and abroad combined with an analysis of the data organization, supporting techniques and research procedure that relate to the system, we fix on proper system platform, functional modules and meshwork topology and choose ArcGIS Server as developer platform in combination with Visual Studio .NET, a new generation compiler launched by Microsoft corporation which provides integrated development environment (IDE) for its users, and adopt the technique of ASP.NET.An in-depth study is made in this paper on the establishment of the graphics-aided system for examination and approval of construction land based on ArcGIS Server and we complete the design of skeletal system, web model, database system, platform establishment and functional module. The client subsystem preliminarily realizes the issuance of digital maps and the staff can perform some basic manipulation on maps via the browser, for instance, construction land information query between graphical features and attribute tables and other interrelated functions; The system implements the following spatial analysis functions: basic farmland analysis, construction land conflict analysis, construction land layout analysis, buffer analysis and so on. It is of great practical value.