57Button Descriptionx Building Visibility: Full 3D city building data that representsactual building size and position on the map. Building data islimited to the city centres of major cities in the US and Europe.x Terrain Detail Level: 3D terrain map data shows changes interrain, elevations or depressions in the land when you view themap, and use it to plot the route map in 3D when you navigate.Colour Profiles ZENEC Navigation Software is able to show the map and the menusin different colours during the day and during the night. Select thecolour profiles to be used in each mode, and select the automatic ormanual switching between the daytime and night colour profiles.Elevation on 2D Map 2D maps can also display 3D information. These top-down maps candisplay elevation by colours and shading.Show Street Names Street names and POI icons can be disturbing on the map duringnavigation. With this switch you can suppress these map elementswhen ZENEC Navigation Software is following your position on themap. If you move the map, both the street names and POI iconsreappear immediately.Lane Information Some maps contain lane information to help you position your car inthe upcoming intersection. This setting tells ZENEC NavigationSoftware whether to display this information at the top or at the bottomof the map.4.5.2 Navigation settingsYou can control how ZENEC Navigation Software behaves during navigation. Tap the followingbuttons: , , .Button DescriptionKeep Position on Road This feature allows car drivers to always correct GPS position errorsby matching the vehicle position to the road network.By turning off this feature you also turn off the GPS position errorfiltering. The position shown on the map will be subject to all positionerrors and position fluctuations.Off-route Recalculation This switch tells ZENEC Navigation Software whether to automaticallyrecalculate the route when you deviate from it. If this feature is turnedoff, you need to initiate route recalculation manually otherwisenavigation will be stopped until you return to the originallyrecommended route.Setting another point than the current GPS position as the start pointof the active route will automatically disable this feature.Restore Lock-to-Position If you have moved or rotated the map during navigation, this featuremoves the map back to your current GPS position and re-enablesautomatic map rotation after the given period of inactivity.