Providing navigation instructions in a three-dimension map environment having settable object transparency levels

摘要

A method in a device for providing navigation instructions in a three-dimensional map environment comprises receiving a start and end positions, determining a route, determining graphical two-dimensional map data, generating navigation instructions comprising setting a transparency level and transmitting the navigation instructions to a display. Corresponding device and computer program product are also provided.

主权项

1. A method performed in a device for providing navigation instructions in a three-dimensional map environment, comprising:
receiving a start position and an end position; determining a route from said start position to said end position; determining, for a position on said route, graphical two-dimensional map data related to said position; retrieving said graphical two-dimensional map data; generating, for said position of said route, navigation instructions by:
projecting said graphical two-dimensional map data on a plane in a three-dimensional map environment and adding a representation of said route;adding graphical three-dimensional map objects to said projected graphical two-dimensional map data by utilising data of said graphical three-dimensional map objects;receiving information pertaining to a current position on the route;determining object-distance information pertaining to current individual distances between said current position and each one of said graphical three-dimensional map objects;receiving transportation-mode information pertaining to a mode of transportation for said device;setting a transparency level of each one of said graphical three-dimensional map objects, wherein the transparency level is set at a level between, and including, an opaque image and an image shown only in outline, and wherein the transparency level of each one of said graphical three-dimensional map objects is dynamically adjusted during travel along the route based on use of both the transportation-mode information and the object-distance information, the object-distance information being used to display a first group of graphical three-dimensional objects with a first transparency level that is different from a second transparency level of a second group of graphical three-dimensional objects different from the first group, and the transportation-mode information being used to display both the first and the second groups of graphical three-dimensional objects at a higher transparency level that corresponds to a first mode of transportation as compared to a lower transparency level that corresponds to a second mode of transportation lower than the first mode of transportation; and transmitting said navigation instructions to a display.