Sony DVS-9000 System User Manual page 239

At the first transition completion point, if you move the image with the
positioner, the transition appears as in the following figure.
Transition start
Transition mode "frame in-out H"
This mode is specified when creating a transition effect in the horizontal
direction.
In this mode, when the first transition has completed, you can move the image
with the positioner in both horizontal and vertical directions. The image at the
transition start point and end point also moves.
The description is of an example of creating an effect such as the following.
Transition start
At the first transition completion point, if you move the image with the
positioner, the transition appears as in the following figure.
First transition
completion point Transition end
Effect execution
First transition
completion point Transition end
Effect execution
Image created
by interpolation
Background A
Background B
State before
modification
Image created
by interpolation
Background A
Background B
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Overview