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Re: Satellite projection contour plots [message #75591 is a reply to message #75578]

Wed, 30 March 2011 09:37

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Matt writes:

> I'm trying to create a few contour plots on a satellite map
> projection. Mostly they look great, but from some viewing angles (the
> lon/lat that the 'satellite' is over), there seems to be some strange
> artifacts in my eps and png output. For example, I've put a plot up
> here (http://dl.dropbox.com/u/13779929/h00200.png) which looks good in
> the tropics, but goes a little crazy at the high-latitudes.

This might be the best you can do these older graphics
commands. They often go a little crazy at high latitudes,
where the math jumbles up at the singularity of the pole.
I'll be interested to see if the new IDL 8 mapping functions
are any better at this.

I note that there is a seminar on this topic at the
IDL user group meeting in Washington, D.C. in a couple
of weeks. I'll see if I can takes some notes.

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: Satellite projection contour plots By: David Fanning on Thu, 31 March 2011 12:08
		Re: Satellite projection contour plots By: Matt[3] on Thu, 31 March 2011 11:56
		Re: Satellite projection contour plots By: David Fanning on Wed, 30 March 2011 09:37
		Re: Satellite projection contour plots By: Matt[3] on Mon, 04 April 2011 16:29

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