1T-C2-750 & 1T-C2-760 O
PERATION
M
ANUAL
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Color is not shown as its layer position can not be altered – it will always be the
background.
8.4.1
Extended scaling controls
The ‘Aspect adjust’ parameter is used to change the way that scaling of windows is
controlled. By default it is set to ‘Simple’ which allows basic control of the window
zoom and shrink sizes and positions – enough for simple tasks.
In ‘Advanced’ mode, it allows the horizontal (H) and vertical (V) components of the
Zoom and Shrink functions to be adjusted independently, thus allowing custom
aspect ratios to be created, or to convert from one aspect ratio to another.
In ‘Pixel’ mode, the user has direct access to pixel and line-accurate scaling
functions. This lets the user specify the exact co-ordinates and size of the source
image (within the video source), and the position and size of where this is placed in
the output video signal.
The table below summarizes the different menu items in the different modes – the
‘Simple’ items have already been described earlier in this section, so only the
‘Advanced’ and ‘Pixel’ ones that are different (highlighted in bold) will be detailed
here.
Simple
Advanced
Pixel
Zoom level % [100]
Zoom H/V [100]100 1.333:1 In [ 0],0 640,480
H/V zoom pan% [50] 50
H/V zoom pan% [50] 50
Out [ 0],0 640,480
H/V crop % [ 0] 0
H/V crop % [ 0] 0
Shrink level % [50] Off
ShrnkH/V [50] 50 1.333:1
H/V position % [50] 50
H/V position % [50] 50
8.4.2
‘Aspect adjust’ = ‘Advanced’
This item allows the independent setting of the horizontal and vertical zoom values.
The third number (1.333 in the example) is the Aspect Ratio resulting from the
adjustments, which is automatically calculated for you based on the incoming
resolution and the H & V Zoom values.
Most resolutions are 4:3 ratio, thus the third number will be 1.333 (4 divided by 3).
Another common aspect ratio is 16:9 (16 divided by 9 = 1.777). PAL and NTSC
inputs are physically 4:3 on your video monitor, but their actual pixel/line ratios are
different and so will not display as 1.333.
Adjust windows
Shrink H/V % [100] [100] 1.333
Adjust windows
H/V zoom % [100] [100]1.333:1
