MAP DISPLAY DEVICE, MAP DISPLAY METHOD, AND COMPUTER PROGRAM USED IN MAP DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a map display device allowing a driver to precisely grasp the map information displayed on a screen in a short time. SOLUTION: In this map display device 10, a curved surface generation part 150 successively generates first to second curved surfaces having forms according to the arrangement of an enlarged part or contracted part designated on a map by a user, respectively, which are gradually deformed via the intermediate shape between the both, a mapping part 150 maps a map stored in a map memory part 110 on each generated curved surface to generate mapped images, and a projection part 170 successively displays projection images of the mapped images projected onto a flat virtual screen. The map display device 10 thus displays a map partially enlarged or contracted while keeping the connecting relation of roads, which is gradually deformed between two display forms.