4. HOW TO CONTROL CHART OBJECTS
4-9
4.3.3 Route page
The [Route] page selects the route parts of the monitored and planned routes to show
on the ECDIS.
XTD Limit: The distance from the
centerline to one side of the nav lane.
Safety Margin: The distance from
one side of the channel limit to the
safety margin distance.
Leg Marks: Indications of waypoint
no. and range and bearing to next
waypoint. (True: Reference to North;
Relative: Reference to heading)
Wheel Over Line: The location
where the ship turns toward new
course. A parallel line appears at the
next location.
WPT1
124.8°
0.8NM
WPT2
87.9°
1.2NM
Wheel over
line*
XTD
limit
WOLWOL
Direction of
movement
Vertical WOL for the current interval
WOL for next section
Safety
margin
㼃㻼㼀㻟
Case 1: Normal Case 2: Angle for next section is narrow (Not 20 deg)
Leg mark
* Wheel over line (WOL)
Direction of
movement