| 主权项 |
1. A navigation apparatus to be mounted on or used in a vehicle that runs on electricity charged in a battery, said navigation apparatus comprising:
an information storage that stores map information; a current position detector that detects a current position of said vehicle; an instruction receiver that receives a setting of a destination; a vehicle information receiver that receives information on a remaining amount of said electricity charged; and a processing circuitry that retrieves a route to said destination from said map information and calculates a first travelable range in which said vehicle is allowed to travel from said current position through at least a part of said route on the basis of said route, the remaining amount of said electricity charged, said current position, and said map information to cause a display to display said first travelable range, wherein said processing circuitry, calculates, regardless of whether said destination is set, a second travelable range in which said vehicle is allowed to travel from said current position through a given route on the basis of the remaining amount of said electricity charged, said current position, and said map information to cause said display to display said second travelable range, and switches, depending on whether said destination is set, one of displays of said first and second travelable ranges and a display of said second travelable range to the other. |
