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Re: Overlay Point Sources on Maps [message #51683 is a reply to message #51456]

Tue, 28 November 2006 11:45

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

greg michael writes:

> I spent a while messing around with griddata() before I realised you
> could do this:
>
> restore,"ptsource_carbon.sav"
> device,decomposed=0
> loadct,39
> grid=fltarr(360,180)
> grid[lon+180,lat+90]=soilc
> tvscl, grid
>
> This particular dataset is simpler than I first thought - the points
> are already gridded at 1x1 degree. The odd thing is that many points
> are repeated (up to 8 times). The values, though, seem to be the same
> in these cases. In general I think a gridding approach is more robust
> for this type of problem.

Humm. Guess I should have realized this is possible, too.
It makes using the land mask a bit different.

Well, there are often several ways to skin this cat.

Cheers,

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

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[Message index]

		Overlay Point Sources on Maps By: David Fanning on Sat, 25 November 2006 09:49
		Re: Overlay Point Sources on Maps By: David Fanning on Mon, 27 November 2006 17:14
		Re: Overlay Point Sources on Maps By: David Fanning on Mon, 27 November 2006 16:58
		Re: Overlay Point Sources on Maps By: zhangxiangkun on Mon, 27 November 2006 16:32
		Re: Overlay Point Sources on Maps By: David Fanning on Tue, 28 November 2006 11:45
		Re: Overlay Point Sources on Maps By: greg michael on Tue, 28 November 2006 11:37

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