| 摘要 |
PURPOSE:To derect the position of an individual ship easily and quickly by a method wherein a highly accurate clear map is placed on an image of a radar indication device to display the position. CONSTITUTION:When the position of an individual ship and data on the distance displayed by a radar indication device 9 are set using a map position regulating unit 11, a map information controlling unit 12 allows the map information to be read out of a memory device 10, based on the map display position set by the map position regulating unit 11 and the data on the distance displayed by the radar indication device 9. This map information is displayed on the radar indication device 9 via the map information controlling unit 12. |
