2-6
Raynav 300 GPS Plotter
2.4 Plotter Display Control Functions
You will normally operate the GPS Plotter with the display showing one
of the Navigation Data pages.
The range of pages is listed in
Selecting the Display Mode
on
page 2-4
and illustrated in
Figure 2-5
. The complete range of pages is described
fully in
Data Display Pages
on
page 3-2
.
Moving Around the Plotter Screen
When using the plotter screen, the default orientation is North-Up, where
the vessel moves across the screen. You will need to pan the display if
your vessel moves out of the current area, or if you wish to examine or
place waypoints in another area. Alternatively, you can
home
the cursor
onto the vessel using
FIND SHIP
.
There are four ways in which you can move around the display:
•
Use the trackpad to pan the display.
•
Automatically home (re-center) the vessel using the
FIND SHIP
soft
key.
•
Use the context-sensitive cursor to change the display center.
•
Change the display scale to zoom out and in to a new area centered on
the cursor position. This method is useful if the area you wish to see is
a long distance away.
Panning the Display
Panning the display is useful if the area you wish to see is only just off the
screen.
➤
Use the trackpad to move the cursor to the edge of the display; the display
will pan across.
Using FIND SHIP
FIND SHIP
is used to center the vessel on the screen, even if it is currently
off screen:
➤
Press the
FIND SHIP
soft key; the following actions occur:
•
The display is re-drawn with the vessel’s position in the center.
•
The cursor is homed (locked) to the vessel’s position and moves with
it.
•
When the vessel moves near the edge of the screen, the display is
redrawn to place the vessel and cursor at the center.
•
Whilst homed, the status bar indicates vessel position, speed and
course over ground.
81171_4.BOOK Page 6 Thursday, November 29, 2001 11:34 AM
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