摘要 |
TO PROVIDE A METHOD AND .DEVICE FOR DISPLAYING MAP DATA AND RELATED DATA PERMITTING EASY ENLARGEMENT OF THE SCOPE OF APPLICATION OF MAP-BASED DATA SERVICES.ADDITIONAL DRAWING DATA FOR SUPERPOSING ON A MAP DISPLAYED ON A SCREEN, AND SETTING DATA FOR SPECIFYING A MAP DISPLAY, ARE SENT AND RECEIVED BETWEEN DIFFERENT APPLICATION PROGRAMS USING INTER-APPLICATION EXCHANGE IN A STANDARD DATA FORMAT. REQUIRED MAP DATA AND RELATED DATA ARE DISPLAYED ON THE SCREEN USING A FIRST APPLICATION PROGRAM HAVING A FUNCTION FOR CONVERTING RECEIVED ADDITIONAL DRAWING DATA AND SETTING DATA TO THE AFORESAID DATA FORMAT AND TRANSMITTING IT BY INTER-APPLICATION EXCHANGE, THEN USING A SECOND APPLICATION PROGRAM MPAPLN WHICH DISPLAYS A MAP ON THE DISPLAY SCREEN ACCORDING TO THE SETTING DATA TRANSMITTED BY THE FIRST APPLICATION PROGRAM AND DISPLAYS ADDITIONAL DATA ON THE SCREEN MAP CORRESPONDING TO THE ADDITIONAL DRAWING DATA. (FIG. 7)
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