Rose Electronics UltraVista Plus - Manual (Page 10)

6 UltraVista Plus Installation and Operations Manual
Selecting the Regions to Be Displayed
Each output of the UltraVista Plus can take its display data from any
arbitrary rectangular region of the captured input image. The factory default
for these cropping rectangles configures the four monitors to display a
quarter of the input as a 2x2 array, and these proportions are maintained
across different input resolutions.
For a 1080p input, this means that 960x540 pixels from the input image
would be up-scaled by a factor of 2 in each direction if the selected output
resolution was 1080p.
However if the input resolution were to change to 1600x1200, then for the
same output monitor the UltraVista Plus would upscale from an 800x600
region and would reprogram its scale factors to 2.4 horizontally and 1.8
vertically to support the same 1080p monitor.
The cropping regions can be assigned arbitrarily and can overlap, the only
restriction being that the resulting scale factor must be greater than 1.0 (ie
1:1 or up-scaled) in either direction. As an example it is possible to use the
UltraVista Plus to output four identical copies of the input signal (providing
the resulting output timings remain within the capabilities of the single-link
DVI outputs).
The regions of the input image to be displayed on a given output monitor
can be programmed via USB by using the UltraVista Plus configuration
application.
In order to support portrait orientation of monitors, the source data can be
rotated by 90º, 180º or 270º as it is output to the monitor.