Design And Implementation Of The Navigation Software Based On MapX Control

With the continuing development of the social economy and science, most countries in the world have built intense transportation nets. Since the increasing complexity and congestion of the transportation system, Route Planning System and Geography Information System have become so important and necessary. Some developed countries in Europe have taken advantage in the field of Route Planning and Digital City. Although our country got involved in this area during recent decades, we have gained huge successes and experience. Some megalopolises have possessed the advanced technologies, which developed countries have.Firstly, this paper introduces the significant role of Digital Map in GIS, the features and two classic kinds of the topology model about Digital Map. Secondly, introduce the MapInfo Professional, which used to make the digital map, it expatiates the data structure of the map and the knowledge, which seemed necessary in making a digital map, and display the process how to use the MapInfo Professional to make a digital map. Thirdly, analyses the merits and functions of the MapX that used in this paper, show the relationship between MapX and MapInfo Professional. Later, describe the model of road in digital map, then figure out the problem of directions of roads, explain the static Route Planning Algorithms: Dijkstra, A*. According to problems encountered in the actual situation, improve the methods proposed. Lastly, use the navigation software to demonstrate Dijkstra algorithm and the application of the digital map, compare the different result of route planning for some situations of roads, the software accomplish these map function: browse, edit, control layer of the map.The purpose of the paper is using MapX and VB language to develop a navigation software based on theoretical knowledge of GIS and Route Planning Algorithms. Resolving these problems encountered in developing procedure, So that theoretical knowledge and practical application have effective integrated. The paper implements the static navigation, in the future the realization of further development of wireless capability can solve the real-time dynamic navigation function.