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15Three-Dimensional Transformation Operations
Chapter 11 DME Operations
You can magnify and shrink the image with the Z-ring. Rotate
counterclockwise to shrink, and clockwise to magnify.
To change the aspect ratio of the image: With the [SRC] button selected
in step 2, press the [ASP PERS] button, turning it on.
You can change the aspect ratio independently on the x- and y-axes
with the trackball, and change it simultaneously on both the x- and y-
axes with the Z-ring.
To change the perspective on the image: With the [TRGT] button
selected in step 2, press the [ASP PERS] button, turning it on.
You can change the perspective of the image on the x- and y-axes with
the trackball, and change the distance to the view point with the Z-
ring.
To change the skew of the image: With the [SRC] button selected in step
2, press the [ASP PERS] button, turning it on, while holding down the
[SHIFT] button.
You can change the skew of the image along the x- and y-axes with
the trackball.
4
Depending on the axis of the change, operate the trackball and Z-ring as
follows.
• To change on the x-axis, rotate the trackball horizontally.
Parameter values increase as you rotate to the right, and decrease as you
rotate to the left.
• To change on the y-axis, rotate the trackball vertically.
Parameter values increase as you rotate upward, and decrease as you
rotate downward.