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HD2200
SECTION 4
HD22 14/03/01 Version 1 Issue 2
4.10
VAR
Allows the picture size, shape and position to be
adjusted to meet custom requirements.
The options are:
Size
Adjusts the size of the whole image. Both
vertical and horizontal size change
together while maintaining the aspect ratio
of the image.
Asp
Adjusts the horizontal size of the image,
allowing the shape (aspect ratio) of the
output image to be changed.
Pan
Adjusts the horizontal position of the output
image.
Tilt
Adjusts the vertical position of the output
image.
SLEW
Controls the method and the timing of a picture
size change
If Slew is not zero and there is no trigger, when a
change of aspect ratio is made it will slew from
one to another with the specified profile and
duration. This will also occur if another memory is
selected, which has a different aspect ratio.
TRANSITION TYPE
Selects the type of transition that will be
performed. Options are:
Immediate
Transition from one picture size to
another is instantaneous.
Slew
Transition from one picture size to
the next occurs at a speed set by
the DISPLAY-SLEW-DURATION
menu and follows a profile set by
the DISPLAY-SLEW-PROFILE
menu.
Trigger
Transition from one picture size to
the next only occurs when a trigger
command is sent down one of the
remote control channels. Multiple
picture parameters can be set in
advance and then activated using
a single trigger command. Note
that if trigger mode is selected then
adjusting the picture size, shape or
position from the front or remote
control panel will have no effect
unless a trigger command is
received. Trigger mode causes an
immediate transition to the next
picture size.
Not yet implemented
.
Trigger Slew
Trigger Slew works the same as
Trigger mode (above) but, instead
of an immediate transition to the
next picture size the transition is
slewed at a speed set by the
DISPLAY-SLEW-DURATION
menu.
Not yet implemented
PROFILE
Selects the “shape” of the transition.
The options are:
Linear
The rate of change of the picture
parameters is constant throughout
the transition.
Accelerate
The rate of change of the picture
parameters increases throughout the
transition.
Decelerate
The rate of change of the picture
parameters decreases throughout
the transition.
S-Curve
The rate of change increases and
then decreases as the transition
progresses.
DURATION
Sets the duration of the transition in fields or
frames. If the output is of interlaced or segmented
frame type the duration is in fields if the DISPLAY-
SLEW-UPDATE menu has been set to F1 and F2
and in frames if the update has been set to frame
rate.
Note that if the output standard is truly progressive
then the DISPLAY-SLEW-UPDATE menu should
be left on F1 and F2 and the duration will then be
in frames.