Patent ID: 7920966

Claim:
A navigation apparatus for guiding a vehicle along a driving route, comprising: a memory that stores three-dimensional map data; and a controller configured to: set a first reference point on the driving route; set a second reference point on the driving route, the second reference point being prior to the first reference point along the driving route; set a third reference point on the driving route, the third reference point being after the first reference point along the driving route; set a triangular area having vertices corresponding to the first reference point, the second reference point, and the third reference point; obtain three-dimensional map data of the vicinity of the first reference point; generate a moving three-dimensional image for the vicinity of the first reference point using the obtained three-dimensional map data; display the generated moving three-dimensional motion-image; identify a structure in the obtained three-dimensional map data that is included in the triangular area; set a predetermined translucent ratio for the identified structure; perform translucent processing on the identified structure based on the set predetermined translucent ration to make the identified structure translucent; and overlap the driving route with the translucent structure.