PURPOSE: To explicate the operations at the time of retrieval and edition and to improve man-machine characteristics by adding shape change processing to the drawing information having a corresponding relation with a display element from the map displayed on a screen so as to completely superpose this information on the corresponding position on the screen and making display.
CONSTITUTION: A map data retrieval section 104 retrieves the map data of the corresponding area from the map database of 101 and converts this data to data for display. A room planning data retrieval section 105 retrieves the room planning data corresponding to the map element of the map data retrieved in the map data retrieval section 104 from the room planning database of 102 and adds such type change processing as to completely superpose this room planning data on the corresponding map element by a room planning type conversion section 107. An attribute data retrieval section 106 retrieves the ternary attribute data having a correspondence relation with the retrieved map data and room planning data from an attribute data base 103 and converts this data to the data type which can correspond to the map data and room planning data already retrieved by the attribute data type conversion section 108. The functional characteristics for use in the user's system is exceedingly improved in this way.
KAWAMURA FUMIO
CHIKADA NOBUYUKI
TOKYO ELECTRIC POWER CO