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Re: GRIDDATA woes [message #59115 is a reply to message #59063]

Tue, 04 March 2008 15:58

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Bill Gallery writes:

> On the other hand, I don't understand the implications of the /sphere
> option: without it, you appear to be interpolating on a flat surface.
> What happens near the poles? What about crossing the meridian from 359
> deg to 0 deg? I never investigated these question. Perhaps you can
> elucidate them in your white paper.

Yes, exactly my plan, but at the moment it looks like I will have to
re-write GRIDDATA from scratch in order to understand it. :-(

I always get an ominous feeling when I've asked the same
question three or four times and get nothing but silence
back. An obvious topic for a Ph.D. thesis, is my first
thought. In this case, I was hoping the author might be
listening in and could tell us why he added the darn
SPHERE keyword in the first place. Surely he had something
other than confounding users in mind. :-)

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 woes By: ben.bighair on Sun, 02 March 2008 18:57
		Re: GRIDDATA woes By: Kenneth Bowman on Wed, 05 March 2008 08:05
		Re: GRIDDATA woes By: David Fanning on Wed, 05 March 2008 06:57
		Re: GRIDDATA woes By: Kenneth P. Bowman on Wed, 05 March 2008 05:46
		Re: GRIDDATA woes By: jameskuyper on Wed, 05 March 2008 03:38
		Re: GRIDDATA woes By: David Fanning on Tue, 04 March 2008 21:10
		Re: GRIDDATA woes By: David Fanning on Tue, 04 March 2008 21:04
		Re: GRIDDATA woes By: ben.bighair on Tue, 04 March 2008 19:14
		Re: GRIDDATA woes By: David Fanning on Tue, 04 March 2008 15:58

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