Design And Implementation Of Spatial Data Management System

The development of computer hardware and network technology makes the storage and transmission of large-capacity image, audio and video possible. In support of this technology, the3D digital city, a large volume of orthophoto map, massive images to are applied in people’s production and life more frequently. And similar information management systems are constantly developed to improve the efficiency of managing the massive data. Based on this irresistible trend, this dissertation tries to build a system for better use and management of spatial data.On the basis of UML software development theory, this dissertation uses sophisticated NET technology, C/S mode, and object-oriented method to build a set of spatial data management system, mixing various spatial data, like DOM(Digital Orthophoto Map), DEM(Digital Elevation Model), MAX model, DLG(Digital Line Graphic), traditional image, and digital data together, which can overcome the shortcomings that data could not be superimposed display, to show the reality more abundantly and intuitively.This dissertation first summarizes the researches of similar systems done by domestic and foreign scholars. Then it analyzes the current situation of this system, the technological problems that have to be solved, the existing technology level, feasibility of development of this system, and the forecast of the economic benefit generated by the system. Next, from the need of application, this dissertation determines the users, data types, and the function of the system, deriving the whole structure of the system. Finally, this dissertation would introduce the interface and some pseudo-code in the NET environment. This system is not only a powerful exploitation of management of spatial data, but a meaningful attempt of improvement of processing efficiency of massive data.