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GETIING ACQUAINTED
USING THE ZOOM FUNCTION
You can increase or decrease the size of the framing box to select how much of the
image you want to be displayed. The larger you make the framing
box,
the farther
away the image appears - more of the image is
visible,
but with less detail. The
smaller you make the framing box
,
the closer the image appears - less of the
image is visible
,
but with more detail.
Try exploring some of the uses of the framing box to zoom in and zoom out on
displayed
graphics:
Press on the top or on the right of the
Joydisk.
The framing box decreases in size
.
Press on the bottom or on the left of the
Joydisk.
The framing box increases in size.
Use the Joydisk to decrease the framing box until it includes only part of
the box and
star.
Press F3 to update the view
.
The terminal redraws the image that was in the framing box, expanding it to fill the
entire graphics area (Figure 2-13)
.
Note that the framing box once again surrounds
the entire graphics area. If you can 't see the framing box
,
turn up the brightness
(use the BRIGHTNESS knob).
Now,
press on the left or bottom of the Joydisk to increase the size of the
framing box
.
The dotted border disappears
,
and the pair of dotted brackets expands until most
of the screen is included
.
Press F3 again to display the image in the zoomed-out larger
window.
Figure 2-13
.
Display
After Zooming and Updating the View.
4106/4107/4109 OPERATORS
2-31
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