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Re: plotting vectors in 3D [message #22364 is a reply to message #22277]

Mon, 06 November 2000 00:00

Martin Schultz
Messages: 515
Registered: August 1997

Senior Member

David Fanning wrote:
>
> M Carmen Gonzalez (mcgonzal@uv.es) writes:
>
>> am new in IDL programming and I'm still a bit lost, so may be some of you
>> can help me...
>>
>> I am trying to plot the measured wind speed (2 components) by a balloon in
>> vertical ascension. At each point of the trajectory i want to plot a vector
>> indicating the wind direction at that point.
>>
>> Does someone know how could I do it?
>
> Oh, oh. I think there are probably a number of us
> would know *how* to do this. The problem comes about
> in trying to convey that information to a novice
> IDL programmer in 10,000 words or less. :-)
>
Oh, come on, David, Haloween is over and you don't have to scare
people any longer ;-) As far as I can see, you can already get a
decent visualization of that data with a 2-D plot - either longitude
vs. latitude, neglecting the altitude, or e.g. altitude vs. time
neglecting lon and lat (or conveying this information in the form of
an additional x axis). Then, the problem is really as simple as using
the arrow procedure and figuring out how to position and scale the
arrows correctly.

Cheers,
Martin

PS: But if you really want to have everything in 3D and illuminated
from within, it might be easier to fly this balloon again, attach some
nice colored stripes to it and take pictures ;-)

--
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[[ Dr. Martin Schultz Max-Planck-Institut fuer Meteorologie [[
[[ Bundesstr. 55, 20146 Hamburg [[
[[ phone: +49 40 41173-308 [[
[[ fax: +49 40 41173-298 [[
[[ martin.schultz@dkrz.de [[
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[Message index]

		plotting vectors in 3D By: M Carmen Gonzalez on Fri, 03 November 2000 04:05
		Re: plotting vectors in 3D By: Mark Hadfield on Mon, 06 November 2000 13:15
		Re: plotting vectors in 3D By: Pavel A. Romashkin on Mon, 06 November 2000 00:00
		RE: plotting vectors in 3D By: davidf on Mon, 06 November 2000 00:00
		RE: plotting vectors in 3D By: M Carmen Gonzalez on Mon, 06 November 2000 00:00
		Re: plotting vectors in 3D By: davidf on Mon, 06 November 2000 00:00
		Re: plotting vectors in 3D By: John Boccio on Mon, 06 November 2000 00:00
		Re: plotting vectors in 3D By: John-David T. Smith on Mon, 06 November 2000 00:00
		Re: plotting vectors in 3D By: Martin Schultz on Mon, 06 November 2000 00:00
		Re: plotting vectors in 3D By: davidf on Mon, 06 November 2000 00:00

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