| 摘要 |
A map display device includes a map polygonal part (5) for converting map data before and after a display is changed over to polygons having the same phase structure as each other, a triangulating part (6) for triangulating the polygon into triangles with equal connection relations of corresponding points between maps before and after the display changeover, and a morphing part (7) for generating map data of an intermediate map having the equal phase structure to those of the respective maps before and after the display changeover when morphing the map display for changeover. |
