9. Raster Chart Material
9-40
Symbol Display
Tracking page
Past tracks
• Ship System: Plot own ship's tracks using system-fed position.
• Ship Primary: Plot own ship's past track with position fed from the primary
sensor.
• Ship Secondary: Plot own ship's past track with position fed from a secondary
sensor.
• Style: Set time stamp position for past track (indicated by Tick or Point)
• Length: Set length of past track.
• Labels: Set label interval.
Target past positions
• Density: Select density of past position of points.
• Style: Select style of presentation of target's past position.
Events
These marks are based on voyage log records. See section 24.4 "Voyage Log".
• User Event: Display event symbols on ECDIS, where the system has recorded
an event based on conditions you have set (Type: User and Auto).
• Auto Event: Display automatically entered event symbols, where the system
has recorded an event based on conditions you have set (Type: Ship and
Alarm).
• Positions display the latitude and longitude of an event.
Note 1: MOB event is always visible.
Note 2: You can select period of time to display event marks in the "Show" list box.
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