3─80 
3 
3.8  DISPLAY NAVIGATION INFORMATION
y
y y
 
4    Deleting a continuous line or mark (Delete) 
 
 
 Procedures   1  Press [4] key while the Edit User Map Menu is open. 
 
The navigation information deletion mode will be activated. 
  Delete    will appear in the    CURSOR    mode field at the radar display button
 
19
. 
 
2  Use the trackball to move the pointer to the vertex in a line or the mark 
to be deleted, and press [ENT] key. 
 
The selected line or mark will be deleted. 
 
Note:  A line drawn by joining two points is all deleted. 
 
3  To delete another line or mark, repeat step 2. 
 
4  Press [0] key when finishing the deletion of lines and marks. 
 
The    CURSOR    mode at the upper right of the radar display will change to the general 
operation mode, terminating the navigation information deletion mode. 
 
(Example)    Deletion of a vertex from a line