Digital cartographical system based on fundamental geographic information

Automatic mapping based on national fundamental geographic information is one of the most pivotal questions at present.According to the representative specifications of map schemas,this article establishes corresponding symbol databases.It not only realizes the symbolization of maps,but also processes successfully the various relationships among features during the symbol deployment by the method of automatization or semi-automatization.Moreover,automatic deployment and locomotive process of point,line and area annotations are also accomplished.As a result,we can easily deploy and display a map,and then basically realizes the automatic mapping of a common map turning to computer.