Geographic Information System Software Design, Research And Application

The Geographic Information System Database is an important part of high speed three dimensions topography display system, which is mainly focused on the store and administration of map and entities. Like many other map objectives, the attribute values of map and entities is not fixed, leveled and multiplied, so they are hard to express by the simple data structures.This paper makes the study of data organization and progress tech of CIS, on the basis of thoroughly study of CIS data structures ana data models, arguments the method of combining vector data, grid data to the same database, and tries to design the complete integration of graphics, images, data values, topology data database and puts forward a series of relational database and object oriented database design model. This paper also uses the application example SEIGIS under the flat tool of software Delphi to validate it' s realize method.