Source Coordinate Frame And Target Coordinate Frame - Sony BZDM-7020 User Manual

Source Coordinate Frame and Target Coordinate Frame

5
Operate the trackball or Z-ring to make the transformation, as
follows.
• To make an arbitrary two-dimensional movement, use the
trackball.
• To move along the x-axis only, move the trackball to left or
right.
• To move along the y-axis only, move the trackball up or
down.
• To move along the z-axis, turn the Z-ring.
• To continue a transformation at a constant speed, hold down
the VELO HOLD button.
• To make fine adjustments to the transformation, hold down
the SEL/FINE button.
It is also possible to make a transformation without using the
trackball or Z-ring, by entering x, y and z values from the
numeric keypad. (See page 3-5.)
All three-dimensional manipulations of a video image take place in
either the source coordinate frame or the target coordinate frame.
• The source coordinate frame is with respect to the original input
video image. That is, as the video image is rotated, for example,
the coordinates rotate with respect to the output video space.
• The target coordinate frame is with respect to the output video
space. These coordinates are thus fixed independently of
manipulation of the video image.
Z
Y
X
Source coordinate frame
Source coordinate frame and target coordinate frame
Y
Z
Target coordinate frame
Chapter 3 Three-Dimensional Transformation
X
3-3