Garmin 521 用户手册

Using Charts 

  From the Home screen, select 

 > 

 > 

 > 

 > 

 

.

Orientation—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 appears vertically on the screen if 

shown.

detail—adjusts the amount of detail shown on the map at different 

zoom levels.

Heading Line—draws an extension line from the bow of the boat in 

the direction of travel.

Off—turns the heading line off.
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 a basic world map or satellite imagery (when 

full world Map is selected).