21
0 Macintosh
User's
Handbook
An alternate method of selecting the Undo command
is
the use
of
the ' key on the keyboard. The Backspace key can be
used
to
erase images which appear within a selected portion
of
the drawing surface.
STRETCHING AND SHRINKING IMAGES
The dimensions
of
a selected portion
of
a Mac Paint doc-
ument can be altered using the Command key.
We
will illus-
trate this technique by altering the size
of
the picnic table.
Use
the hand
to
move the scene
up
on the drawing surface so as
to
free space for maneuvering.
Don't
move the table off the
drawing surface.
If
you are unable to move the images up far
enough, the problem may be that the drawing surface lies
at
the
lower limit
of
the page. Execute the Show Page command and
maneuver the images and the drawing surface as desired.
Select the table and move a copy
of
it
to
the cleared area.
Now, move the rest
of
the images off the surface
and
center the
copy
of
the table. Place the pointer in the selection rectangle
and
drag while pressing the Command key. The image
stretches and shrinks with the movement. The alterations are
delayed a split second while the Mac recomputes the dimensions.
The placement
of
the arrow within the selection rectangle
plays a crucial role in determining the direction of movement.
Placing the pointer near the middle
of
the right
or
left side
of
the rectangle will constrain the alteration
to
horizontal move-
ment. The opposite sides remain anchored. Similarly, place-
ment near the top
or
bottom constrains the movement to the
vertical direction.
If
the pointer
is
in a corner, the image
stretches in
both
directions. Notice
that
the image can be
reversed across the anchored point. The image can be stretched
off the surface, but if the mouse
is
released, the portion will be
lost unless
Undo
is
selected. A possible stretch
of
the picnic
table appears in figure 6.36.
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