jules@sri.UUCP (Rod Steindl) (06/16/84)
We have a CAT-400 Graphics Imaging System with digitizing frame grabber
as put out by DIGITAL GRAPHIC SYSTEMS, Palo Alto, CA.
However the lightpen which is supposed to provide a dynamic interaction
with the displayed image is not interacting as it should. The lightpen is
being correctly identified in eight narrow horizontal bands. There are an
equal number of bands where the coordinates calculated from the byte- and
bit-pointers are incorrect and yet another equal number of interspersed bands
where the lightpen is not seen at all.
Has anyone had any experience with this package and/or this problem
or can offer any suggestions. All correspondence to DIGITAL GRAPHIC SYSTEMS
seems to have been ignored.
I have had only limited experience in this field and thus the problem
may be easily overcome by someone in the know.
For anyone with this particular package, has there been any useful
software updates in the past two years? Please mail any replies to jules@sri
Regards,
Rod Steindl.
Sugar Research Institute,
P.O. Box 689,
Mackay. 4740.
Qld., Australia.
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