Patent Document ID: 9019173
Application ID: 13141830
Patent Flag: 1

Claim One:
1. A method of controlling a navigation device to generate a navigation manoeuvre graphics for a road junction manoeuvre, the method comprising the following steps performed by the navigation device: providing a plurality of pre-defined graphical junction elements in a vector graphics format, the pre-defined graphical junction elements comprising at least one of junction-type-related graphical elements, road-related graphical elements and lane-related graphical elements in the vector graphics format; receiving, from a routing module of the navigation device, routing information pertaining to a scheduled route, the scheduled route comprising a road junction; retrieving, from a map database, road data pertaining to the road junction, wherein the retrieved road data comprises lane information for the road junction; analysing the road data to determine one or more junction geometry parameters of the road junction, wherein at least one of the determined junction geometry parameters relates to the lane information; composing, based on the junction geometry parameters and from the plurality of pre-defined graphical junction elements, junction graphics data representative of the road junction and the lane information; generating, from the routing information and the junction geometry parameters, manoeuvre indication graphics data representative of a lane based junction manoeuvre; and generating a navigation manoeuvre graphics based on the junction graphics data and the manoeuvre indication graphics data.