摘要:
A navigation apparatus (S) displays a map so as to support a travel of a movable body. A map information displaying apparatus in the navigation apparatus is provided with: a character data extracting device (4, 6) for extracting character data corresponding to characters from map data corresponding to the map; a map data converting device (4, 6) for converting the map data, which does not include the character data, to a bird's-eye view which is a one-point perspective projection view in which a topography corresponding to the map data is seen from one point in a sky, and outputting bird's-eye view map data indicating the bird's-eye view of the converted map data; a character data converting device (4, 6) for converting the extracted character data to the bird's-eye view, and outputting bird's-eye view character data indicating the bird's-eye view of the converted character data; a synthesizing device (13, 14) for synthesizing the outputted bird's-eye view character data and the outputted bird's-eye view map data corresponding to the bird's-eye view character data with each other, and generating the synthesized bird's-eye view character and map data; and a displaying device (15, 16) for displaying a synthesized bird's-eye view corresponding to the synthesized bird's-eye view character and map data generated by the synthesizing device.
摘要:
A map information displaying device (4, 12) for use in a vehicle navigation apparatus, includes: a data converting means (6) for capturing points (A) of map data corresponding to a map from a view point (E) through a viewing line (EY) which starts from the view point and has a depression angle (θ) with respect to the plane (XY) of the map and for perspectively projecting the points of map data onto a viewing plane (S) which is prescribed perpendicularly to the viewing line and has a predetermined distance (d) from the view point to produce map display data, said converting means using the depression angle of 90 degrees to produce two dimensional map display data and using the depression angle of an acute angle to produce three dimensional map display data; and a display means (12) for displaying the two dimensional map display data on a first display area (32) of a display plane and the three dimensional map display data on a second display area (30) of the display plane neighboring to the first display area.