| Electronic map is the new-typed map integrated in “Text, Voice, Graph, andAnimation†and to embody the map content by digit. It is with the features ondynamic, mutual and multimedia etc. and could realize the mutual browsing,searching of spatial data, embody various information related with geographicenvironment from different angles. This thesis analyzed out the disadvantages ofelectronic map in public transport query according to the research the electronic mapsof the home and abroad, for example: some has the query station but no mapinformation, it cannot enable people to learn the routes; some showed the transportroute but lack of the text introduction; some are with words and photographsexplanation, but the loading speed is very slow. This thesis took use of GIS developmodes, combined Visual Programming Language Design and Implementation VB withMapObjects components, takes Donghu District of Nanchang City as an example, toexplain some theoretic methods in the process of system development and some keytechnology during the design, such as: GIS, map–digitizing, GIS secondarydevelopment, COM etc. This thesis also researched the generation, processing andrelative key technology and data organization of electronic map, realized its variousfunctions, such as map enlarging, reducing, roaming, eagle eye, labeling and busroutes query, bus stations query and bus transfer query. |
