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Re: Plotting vectors [message #50493 is a reply to message #12249]

Thu, 05 October 2006 19:57

Chris[2]
Messages: 39
Registered: August 2003

Member

Why not try using iVector, which was added in IDL6.3?
You can do:

iMap, map_projection='Stereographic' ; or whatever projection you want
iVector, U, V, X, Y, /OVERPLOT

Look up iMap and iVector in the docs for all of the available keywords.

-Chris
ITTVIS

"maki" <chagirard@yahoo.com> wrote in message
news:1160040976.089616.240440@b28g2000cwb.googlegroups.com.. .
> Hi all,
> I have a set of geographic locations at which I would like to plot
> velocity vectors. I looked at previous messages on that topic but did
> not find an easy way to do it. VELOVECT seems to plot a 2D-velocity
> field but my data are not gridded (nor randomly distributed). I also
> looked at the ARROW procedure but it looks not easy, as we need to
> specify the cordinates of the tail and arrowhead of each vector (I have
> the Xi,Yi coordinates of each arrow tail, and the corresponding Ui and
> Vi components, in a different unit than the map).
> Thanks for your help !
>

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[Message index]

		Plotting vectors By: Vap User on Fri, 24 July 1998 00:00
		Re: Plotting vectors By: Chris[2] on Thu, 05 October 2006 19:57
		Re: Plotting vectors By: Andy Heaps on Thu, 05 October 2006 02:56

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