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GETTING ACQUAINTED
USING THE PAN FUNCTION
The Pan function lets you
"
roam around
"
in your image and locate the portion you
want to
display.
In contrast to Zoom
,
which changes the size of the
window,
Pan
changes the location of the window in which your graphics
appear.
To change the location of the
window,
you 'll use the Joydisk to move the location of
the framing box. To move the framing box
,
you must reduce the
its
size while in
Zoom - you just did this
.
Now activate Pan
:
Press F2
.
Note that the dotted brackets displayed during Zoom have been replaced by a
cross
,
and that the word PAN in the menu is displayed
.
Experiment with moving the
framing box around
:
Press the top of the Joydisk to move the framing box
up.
Press the right of the Joydisk to move the framing box to the right.
Press the left of the Joydisk to move the framing box
left.
Press the bottom of the Joydisk to move the fram ing box down
.
Now move the framing box and redraw the
display:
Press the Joydisk to position the framing box over the star (Figure
2-15a).
Press F3 to redraw the display (Figure 2-15b)
.
When you pressed
F3,
the part of the image inside the framing box filled the entire
screen
(Figure
2-15b)
.
If you move the cross around and press F3 again
,
you
will
see a different part of the
image
,
but the framing box and image size do not
change
.
Move the framing box to the right and press F3 again
.
USING OTHER
ZOOM/
PAN FUNCTIONS
In addition to zooming and panning
,
the Zoom/Pan function offers other features
useful for viewing
graphics.
Saving and Restoring Previous Frames
While in Zoom/Pan
,
the terminal remembers the display of the original
image
as
well as the three most recent displays created by pressing F3
(VIEW).
These
displays, which include the framing box, are called frames
.
You have already
created several frames as you worked with Zoom/Pan in the preceding steps
.
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OPERATORS
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