3D input
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Tue Feb 21 18:38:09 AEST 1989
In article <39:doelz at urz.unibas.ch> doelz at urz.unibas.ch (Reinhard Doelz) writes:
>>We have a ``Dimension-6'' -- a steering ball that senses rotation and
>>translation in 3 dimensions.
>I'd like to know whether you could give me the adress of the company
>and how you managed to write a driver!
Ok, to get a Dimension-6 I think you should contact:
CIS Graphik und Bildverarbeitung GmbH
Helmholtzstrasse 21
Postfach 10 01 80
D-4060 Viersen 1
B. R. D.
Phone: +49 2162 - 3 00 11
Telex: 8 518 835 cis d
Fax: +49 2162 - 142 87
Not too far away from you! We have an early version of the steering ball,
which has worked flawlessly; looking at the sales glossy, it looks like
they have improved the design considerably, e.g., added a wrist rest.
The ``driver'' is very simple: The ball is connected to a RS-232 port.
My initialization routine sets up the serial port in ``RAW'' mode, and
the reading routine does the following:
1. Send request code to ball.
2. Read serial port.
3. Compute checksum.
4. Return a structure with data.
The version we have now sends the request after reading the port, so
data will (hopefully) be available the next time the reading routine
is called. I can mail the code to anyone interested.
The flight program requires some minor modifications, but I cannot
recall exactly what. I could have a look...
Just to widen the discussion on flight: Have you heard any comments from
people with real experience of the planes in flight? I think the visual
feedback is very powerful, but would a real F-15 pilot be annoyed by
significant differences in plane characteristics? Philosophical
outgrowth: when modelling a real-world system, how can we (as computer
specialists, not application specialists) determine what are the
significant attributes of the system? For example, how important is
feedback of G-forces in a flight simulator?
Dag M. Bruck
--
Department of Automatic Control Internet: dag at control.lth.se
Lund Institute of Technology
P. O. Box 118 Phone: +46 46-108779
S-221 00 Lund, SWEDEN Fax: +46 46-138118
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