Crestron UPX-2 Reference Manual page 19

Crestron UPX-2
Aspect Ratios
Reference Guide - DOC. 6286A
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Analog Feedback Join - Top adjusts the vertical position of the
video.
The minimum analog top value assigned in the SIMPL Windows
program is zero. An analog value of zero places the video image
on the top edge of the display. The maximum analog value is the
vertical resolution minus the vertical size of the image displayed.
As you move the image past the bottom edge of the display, the
UPX-2 rescales the image to fit the new size and does not allow
the image to move off the screen. You cannot have a value less
than zero.
NOTE: The video size must fit within the horizontal and vertical
position. If, for example, you set the video image value to full
screen, but set a horizontal and vertical offset value of ten, the
video image on the screen will not be full screen.
The UPX-2 moves the image ten pixels down and ten pixels to the
right. Then the UPX-2 scales the image to fit on the reminder of
the screen. In this case, set the horizontal and vertical offset to
zero.
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Analog Feedback Join - Width adjusts the horizontal size of the
video.
The UPX-2 will not display the video if you enter an analog value
of zero. The maximum value assigned to width is the horizontal
resolution of the UPX-2 output, not the input resolution.
When you assign an analog value to height and width, you must
also assign an analog initialize value to that analog join number in
SIMPL Windows. Without an analog initialize value, video will
not be present when you do a page flip or subpage.
An analog value of zero has an image size of zero pixels for height
and width.
If you also want the video to appear in a particular position on the
screen, you must set the top and left position values in an analog
initialize. If no analog value is assigned, the UPX-2 defaults to the
upper left corner of the screen, regardless of where you have drawn
the window location in VT Pro-e. For additional software
information, consult the VT Pro-e help file.
Maintain the proper aspect ratio when setting the analog values. Refer to the latest
version of the Crestron UPX-2 Operations Guide (Doc. 6276), available from the
Crestron website for additional information on aspect ratios.
1. To maintain a 4 X 3 aspect ratio, multiply the height by 1.33 to get the
width.
2. To maintain a 16 X 9 aspect ratio, multiply the height by 1.78 to get the
width.
Example: Assuming the height is 100
Aspect Ratio
4 X 3
16 X 9
Universal Presentation Processor
Height Width
100 133
100 178
Universal Presentation Processor: UPX-2 • 15