44 GPSMAP 640 Owner’s Manual
Marine Mode: Advanced Conguration
Style—(Mariner’s Eye 3D only) select how chart data is
displayed over 3D terrain.
Hazard Colors—(Mariner’s Eye 3D only) turn hazard colors
on or off.
On
setting indicates shallow water and land with a color
scale. Blue indicates deep water, yellow is shallow water,
and red is very shallow water.
Off
setting shows the land as seen from the water.
Range Rings—toggle the range rings on or off.
Safe Depth—(Mariner’s Eye 3D only) adjust the depth at which
red indicates shallow water.
Lane Width—adjust the width of the course line drawn when
navigating. This setting affects direct navigation (Go To) and
routes (Route To), but does not affect automatic guidance
(Guide To).
Fish Eye 3D Settings
From the Fish Eye 3D screen, touch Menu.
View—change the viewpoint. Choose the direction you want the
camera to point. For example, if you touch Port, the view places
the camera to starboard, looking across the boat to port.
Tracks
—toggle tracks on or off.
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Data Bars—control how charting numbers appear on the screen, as
on the Navigation chart. See page 40.
Fishing Chart Settings
From the Fishing chart, touch Menu.
Waypoint and Tracks
—access shortcuts to waypoint and track
information, as on the Navigation chart. See page 39.
Other Vessels
—access AIS and DSC shortcuts, as well as chart-
specic AIS display settings, as on the Navigation chart. See
page 39.
Navaids—toggle all navaids, such as lights and buoys, on or off.
From the Fishing chart, touch Menu > Fishing Chart Setup.
Roses—enable information roses around the boat icon, as on the
Navigation chart. See page 40.
Data Bars—control how charting numbers appear on the screen,
as on the Navigation chart. See page 40. You can also turn the
compass tape on or off (see page 41).
