GPSMAP 4000 Series Owner’s Manual Using ChartsUSinGChartSWind VMG is displayed under the following conditions:The Sailing data bar displays Wind VMG when you are not navigating a route or an automaticguidance line.The Sailing data bar displays Wind VMG when the Route Leg data bar is on and you arenavigating a route.Changing the Chart AppearanceFrom the Home screen, select Charts > Navigation Chart > Menu > Chart Setup > ChartAppearance.Heading lineTrackChart borderOrientation—changes the perspective of the map display.North Up—sets the top of the map display to a north heading.Head Up—sets the map display to the current track heading.Course Up—sets the map so the direction of navigation is always up. The heading line appearsvertically on the screen if shown.Detail—adjusts the amount of detail shown on the map at different zoom levels.Heading Line—draws an extension from the bow of the boat in the direction of travel.Off—turns off the heading line.Distance—sets the distance to the end of the heading line.Time—sets the amount of time until you reach the end of the heading line.World Map—displays either a basic world map or displays satellite imagery (when you select FullWorld Map).Inset Map—turns the inset map on or off when panning away (page 8). Select Auto to turn on theinset map only when the boat symbol no longer is visible.Spot Depths—turns spot soundings on or off and sets a dangerous depth.Safety Shading (with supported BlueChart g2 Vision cards)—Areas with depths shallower thanthe specified value are shaded in blue, while areas with depths greater than the specified value areshaded in white. The contour is always drawn at or deeper than the selected depth.Symbols—changes symbol preferences.Navaid Size—adjusts the size of the navaid symbols shown on the map.Navaid Type—selects the navaid symbol set (NOAA or IALA).Land POis—turns the display of land POIs (points of interest) on or off.Light Sectors—turns the sector in which a navigational light is visible on or off. Selecting Onfilters out light sectors depending on the zoom level.••••••••••••