| natural neighbor interpolation [message #13911] |
Thu, 31 December 1998 00:00  |
manizade
Messages: 9
Registered: October 1993
|
Junior Member |
|
|
I would like to improve upon IDL TRIGRID's interpolation method
by using a weighted average, natural neighbor approach as
is implemented in Dave Watson's nngridr package. I found
that NCAR has adapted nngridr into a library of C and FORTRAN
code called Natgrid. I suppose I could use that via a set of IDL
wrappers and CALL_EXTERNAL routines. First, however, I would like
to know if anyone has already adapted these or similar routines
for IDL (either a direct port or a set of wrappers).
Thanks.
----
Serdar S. Manizade/EG&G
Airborne Topographic Mapper Project
NASA/GSFC/Wallops Flight Facility, Wallops Island, VA
http://aol.wff.nasa.gov/~manizade
|
|
|
|
|
|
| Re: Natural Neighbor Interpolation [message #51542 is a reply to message #13911] |
Tue, 28 November 2006 10:50  |
Haje Korth
Messages: 651
Registered: May 1997
|
Senior Member |
|
|
...and I volunteer to proof read... :) Haje
David Fanning wrote:
> Jeff Hester writes:
>
>> I'm not sure how I missed it. Thanks. - Jeff
>
> Well, finding it and understanding it once you have found
> it are two completely different things, it seems to me.
> I'm convinced GRIDDATA must be a powerful routine, but the
> documentation doesn't give me a clue how to use it. Does
> anyone understand enough about the various gridding methods
> available in GRIDDATA to write a decent article about it?
>
> 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.")
|
|
|
|
| Re: Natural Neighbor Interpolation [message #51557 is a reply to message #13911] |
Tue, 28 November 2006 08:50 |
David Fanning
Messages: 11724
Registered: August 2001
|
Senior Member |
|
|
Jonathan Dursi writes:
> In fairness, for some strange reason `natural neighbors' isn't in the
> index, so unless you know where to look you wouldn't see it.
No, clearly ITTVIS is trying to keep this excellent routine
under wraps. For what purpose, I really don't know. Possibly
because their technical support team has no more clue how or
when to use it then the rest of us.
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.")
|
|
|
|
|
|
| Re: Natural Neighbor Interpolation [message #51566 is a reply to message #13911] |
Mon, 27 November 2006 18:24 |
David Fanning
Messages: 11724
Registered: August 2001
|
Senior Member |
|
|
Jeff Hester writes:
> I'm not sure how I missed it. Thanks. - Jeff
Well, finding it and understanding it once you have found
it are two completely different things, it seems to me.
I'm convinced GRIDDATA must be a powerful routine, but the
documentation doesn't give me a clue how to use it. Does
anyone understand enough about the various gridding methods
available in GRIDDATA to write a decent article about it?
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.")
|
|
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
