Phytec eGrabber-4plus, Hardware Manual

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Driver Software
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PHYTEC Meßtechnik GmbH 2004 L-608e_4
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Caution:
l
The area of the window defined by hsize and vsize and with
the position hpos and vpos should never abandon the region of
the digitized image defined by ppl and lines :
hpos=100, hsize=200, ppl=200 : not admissible since last
100 pixels are not defined
hpos=1, hsize=200, ppl=202 : admissible all pixels are in
the image
hpos=100, hsize=100, ppl=200 : admissible
hpos=100, hsize=200, ppl=300 : admissible
hpos=300, hsize=300, ppl=800 : not admissible: image has
more pixels than the
TV-standard provides
(correspondingly in Y-direction)
l
All parameters in horizontal direction must have even values.
(ppl=123 is not admissible, ppl=124 is admissible.)
l
If all parameters, which influence the size of the image, are set
to 0, then no field is produced.
Figure 51: Example of Scaling: Only the ppl Value is Different