Picture Control Menu
Adjusting the image size and position alters the image within the output raster. Image
adjustments are relative to the top left corner of the output raster.
The
Picture
Control
menu positions an image (up to 1920x1080) within a virtual pixel
space with a horizontal range of -1920 to 1920, and a vertical range of -1080 to 1080. This
allows positioning of the image so that a portion of it is displayed within the constraints of
the output raster (output resolution), or off the screen entirely.
NOTES:
•
The available range of the image position depends on the horizontal and vertical
USB output resolution. The image can be shifted off screen only by the amount of
the horizontal and vertical streaming resolution.
•
Size and position values must be divisible by 8 (horizontal) or 2 (vertical).
below shows the line and pixel coordinates at which the image can be positioned.
In this chart:
x
= Horizontal streaming resolution
y = Vertical streaming resolution
Virtual Pixel Space
(-x, -y)
(0, -y)
(x, -y)
(-x, 0)
(0, 0)
The video within
this center section
is viewable on the
output.
(x, 0)
(-x, y)
(0, y)
(x, y)
Figure 68.
Image Positioning Space
When the aspect ratio changes, the horizontal size and position values are updated
accordingly.
figure 68.
Image Positioning Space
MediaPort 200 • Front Panel Operation
68
