Research on Imitating a Forewarning System of Shipping Navigation based on MapBasic and Visual C

MapInfo Professional is the famous top of a table GIS software of the whole world, and is used very simply. As a secondary exploitation tool of MapInfo Professional. MapBasci has the strong ability to judge topological relation of graphs and the list processing function, and it can stride the terrace to be mixed compile with VB and VC. Imitating a forewarning system of shipping navigation, MapBasic can solve problems of judging topological relation of graphs, displaying graph, the renewal of graph and etc, then it can transfer the file of dynamic link libraries compiled by Visual C++ at MapBasic to broadcast forewarning sound.