Patent ID: 6895331

Claim:
A navigation device comprising: map drawing means for drawing a map image in one of a plurality of predetermined reduced scales; a display unit for displaying the map image drawn by said map drawing means; designation means for designating an arbitrary road which is included in said map image displayed by the display unit in accordance with a user's operation; and road selection means for variably setting a section of the road designated by said designation means in accordance with said reduced scale to select said set section of the road; wherein when a first map image in one of the reduced scales is displayed, the user can designate a section of a road included in the first map image, and if the designated road section is not set by the user using the road selection means, a second map image in a larger reduced scale is displayed and includes said designated road section, thereby allowing the user to designate a smaller portion of the road section than was designated in the first map image.