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Re: GridData Conundrum [message #70597 is a reply to message #70476]

Thu, 22 April 2010 06:07

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

ben.bighair writes:

> It doesn't look to me like you are running the coordinates through
> GRID_INPUT before passing them to GRIDDATA. In the past I found that
> (generally) removed all subsequent potholes from the GRIDDATA process.

Well, I tried this:

Grid_Input, x, y, air, x1, y1, air1
Triangulate, x1, y1, triangles1, TOLERANCE=1.0
griddedData = GRIDDATA(x1, y1, air1, $
/SHEPARDS, DELTA=[25000.,25000.], TRIANGLES=triangles1, $
DIMENSION=[304,448], START=[-3850000., -5350000.])

Now the Shepard's plot "blows up", but in a more orderly
fashion, with straight lines. :-)

Still works on my LINUX box, though, which I find most
disconcerting.

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]

		GridData Conundrum By: David Fanning on Sat, 17 April 2010 10:19
		Re: GridData Conundrum By: David Fanning on Mon, 19 April 2010 13:46
		Re: GridData Conundrum By: David Fanning on Wed, 21 April 2010 12:23
		Re: GridData Conundrum By: David Fanning on Mon, 19 April 2010 11:52
		Re: GridData Conundrum By: Klemen on Mon, 19 April 2010 07:44
		Re: GridData Conundrum By: David Fanning on Mon, 19 April 2010 07:03
		Re: GridData Conundrum By: David Fanning on Thu, 22 April 2010 06:07
		Re: GridData Conundrum By: ben.bighair on Thu, 22 April 2010 05:35

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