B&G Zeus Touch 12 - Manual (Page 18)

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Charts | Zeus Touch Operator Manual
Laylines
When navigating to a waypoint you can configure laylines on the chart to aid navigation.
These lines can be set from the vessel, waypoint or both. The laylines convey the vessels
present laylines varying with wind, tide and tacking angle.
To configure the laylines go to the laylines dialog.
Laylines
Layline Options
Boat Layline from vessel. The length can be set to 1, 10 or 100 miles.
Mark Layline from mark/waypoint. The length can be set at 1, 10 or
100 miles.
Tidal Flow Correction Tidal flow correction will calculate the tidal flow and offset the
laylines accordingly.
Overlapped When selected the laylines will extend beyond the tack/gybe
intersection.
True Wind Angle There are 3 sources available for true wind angle (TWA). You can
choose between Polar, Actual or Manual.
Polar Takes the target TWA from your polar table. (Polar table is
available in Hercules Performance and Hercules Performance
Motion only).
Actual Takes the current value of true wind angle (TWA).
Manual Manually input the upwind and downwind numbers into the
dialogue boxes.
Limits When selected will show a dotted line indicating the minimum
and maximum tack/gybe time period either side of the layline.
This can be set from 5 to 30 minutes.
Synchronize 2D/3D chart
Links the position shown on one chart with the position shown on the other chart when a 2D
and a 3D chart are shown side by side.
Pop-up information
Selects whether basic information for chart items shall be displayed
when you tap the item.
Grid lines
Turns on/off viewing of longitude and latitude grid lines on the
chart.
Course Highway
Turn course highway on/off
Waypoints, Routes, Tracks
Turns on/off displaying of these items on chart panels.