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| Re: axis-system variable for surface? [message #23177 is a reply to message #23176] |
Sat, 13 January 2001 08:12  |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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Harald von der Osten-Woldenburg (hvdosten@lb.netic.de) writes:
> my question is a rather silly one, but I am looking and looking and
> looking for hours in the documentation for the system variables and
> can't find it:
>
> I had to rotate a 3D-plot for more than 180 degrees and would like to
> know how to correct now the position of the axis, as well to change the
> orientation of the labels (I was just able to change the direction of
> the ticks by changing the sign....)
>
> Thanks a lot for every smallest hint
I presume you are using direct graphics (I.e., the SURFACE command
or something like it to set up the 3D coordinate system)
here. Then my very smallest hint would be "hopeless". :-)
I really don't think you have much of a chance.
You would have more of a chance with object graphics,
but even there it would not be a trivial solution.
It would involve putting each axis label in its own
rotating model, and then counter-rotating the model to
counteract the rotation of the axis itself.
Do-able, maybe, but you would have to become more intimate
with transformation matrices than I've ever managed
to become. That's just a women who don't love me. :-(
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
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