3-DIMENSIONAL MAP VIEW WITH BACKGROUND IMAGES

摘要

Techniques for generating a 3-dimensional map view of a navigation system are disclosed. A position module determines a position of a user to which the 3-dimensional map view is to be displayed, a viewing direction and elevation for the user. A map viewer generates the 3-dimensional map view of the map data, wherein for objects located within a predefined distance to the position of the user the position and the representation of each object is calculated taking into account the viewing direction and the elevation, wherein for objects located outside the predefined distance at least one group of objects, to which the objects belong, is identified, and for each identified group the background image is selected and displayed in which the 3-dimensional objects of the identified group are shown from the determined viewing direction and elevation. A display device displays the generated map view.

主权项

1. A method for generating a 3-dimensional map view of a navigation system, the method comprising:
determining a position, a viewing direction, and an elevation to which the 3-dimensional map view is to be displayed; for each object in a plurality of objects:
determining whether the object is within a predefined distance relative to the position, andif the object is within a predefined distance relative to the position, then calculating a representation of each object based at least in part on the viewing direction and the elevation, orif the object is not within a predefined distance relative to the position, then
identifying an object group in a plurality of object groups to which the object belongs, andselecting a background image from a plurality of background images associated with the object group based at least in part on the viewing direction and the elevation; generating the 3-dimensional map view based on at least one calculated representation and at least one selected background image; and displaying the generated 3-dimensional map view.