Re: Interpolation on irregular grid
- To: mathgroup at smc.vnet.net
- Subject: [mg8360] Re: Interpolation on irregular grid
- From: newsmgr at merrimack.edu
- Date: Tue, 26 Aug 1997 02:22:57 -0400
- Sender: owner-wri-mathgroup at wolfram.com
Relay-Version: ANU News - V6.2.0 06/23/97 OpenVMS AXP V6.2; site chasm
Subject: [mg8360] Re: Interpolation on irregular grid
From: flip at tvl.psy.ohio-state.edu ("flip phillips (at home)")
To: mathgroup at smc.vnet.net
Organization: the ohio state university, the vision laboratories
Use a Delaunay triangulation and re-interpolate at a regular interval.
Also, Tom Wickham-Jones has a very nice MathLink program that does this
making a class of InterpolationFunction that does just what you need. It's
from the 'ExtendGraphics' library of stuff that is part of his book on MMa
Graphics.
good luck
In article <5tbe9f$j90 at smc.vnet.net>, elsner at avalon.msfc.nasa.gov (Ron
Elsner) wrote:
>I have data {x_i,y_i,f_i} and I wish to interpolate
>between the grid points. But the x's and y's are on
>an irregular grid. Is there a function to do this
>in Mma 3.0?
>
>--Ron Elsner
>NASA MSFC