Gis System Developed In The Gps Car Navigation Applications

Some important problems emerged in the development of the GIS/GPS are seriously considered in this paper. Related theoretical analysis and calculation are presented,and special schemes are proposed. Flow charts of system data processing are given. Digital communication and digital map match are discussed in this paper. Some key points in GIS design,including vector graphics system,DBMS join between vector graphics system and DBMS,are given.One of the peculiarities in this software is the link between GIS and GPS. Because the digital map is used as the background for navigation,we can rectify the digital map by the trace of the navigation vehicle and reduce the cost price of map.this software is developed with international OOP software engineering and advanced development tool-VC++ 6.0. It provides users from different special fields with very powerful GIS functions.