[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: 3D interpolation on an irregular grid
- Subject: Re: 3D interpolation on an irregular grid
- From: Wayne Landsman <landsman(at)mpb.gsfc.nasa.gov>
- Date: Wed, 09 May 2001 11:57:46 -0400
- Newsgroups: comp.lang.idl-pvwave
- Organization: Raytheon ITSS
- References: <3AF92732.A8D0C6CC@met.ed.ac.uk>
- Xref: news.doit.wisc.edu comp.lang.idl-pvwave:24882
"John Marsham (cm)" wrote:
> There seems to be no IDL function that will interpolate in 3D on an
> irregular grid. Am I wrong? Or does someone have one?
>
You might want to try the routines for 1-d, 2-d, or 3-d interpolation
written by Joop Schaye at
http://idlastro.gsfc.nasa.gov/ftp/pro/math/
ngp.pro - "Nearest Grid Point" interpolation (lowest order)
cic.pro - "Cloud in Cell" interpolation (higher order)
tsc.pro - "Triangular Shaped Cloud" interpolation (highest order)
--Wayne Landsman
landsman@mpb.gsfc.nasa.gov