comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » GridData Conundrum

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: GridData Conundrum [message #70614 is a reply to message #70555]

Wed, 21 April 2010 12:23

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning writes:

> Just one more surprise to report. If I use the GridData
> Natural Neighbor method (instead of the Nearest Neighbor
> method), the result is indistiguishable from the Contour
> method!
>
> I've updated my web page to report the new results:
>
> http://www.dfanning.com/code_tips/usegriddata.html

Having GridData working is like living in the land of
milk and honey. But there is one disturbing fact that
lurks like a snake in the garden. I get different
results from GridData depending upon what machine
I run the identical code on. :-(

In particular, the Modifed Shepard's algorithm blows
up (no other way to describe it) on my Windows 64-bit
machine, while it seems to work reasonably well on
my 32-bit LINUX machine.

Can anyone think of any reasonable explanation for this?
I show some results at the end of this article:

http://www.dfanning.com/code_tips/usegriddata.html

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.")

Report message to a moderator

[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

Previous Topic:	dilate
Next Topic:	image contrast, bias a la DS9

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Tue Dec 02 09:01:16 PST 2025

Total time taken to generate the page: 0.88885 seconds