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MathGroup Archive 1997

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Re: 2d-interpolation on non-equidistant data grid ?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg7800] Re: 2d-interpolation on non-equidistant data grid ?
  • From: Paul Abbott <paul at physics.uwa.edu.au>
  • Date: Tue, 8 Jul 1997 22:41:13 -0400
  • Organization: University of Western Australia
  • Sender: owner-wri-mathgroup at wolfram.com

Ralph Kimmlingen wrote:

> does anyone know of a piece of code which allows for 2d-interpolation on
> a non-equidistant data grid (or an arbitrary array of vectors) ?
> 
> (e.g.: numericalData = { {0, 0, 100}, {2, 0, 101}, {2.5, 0, 105},
>                          {1, 1, 120}, {2, 2, 110}              }    )
>                           |  |  |
>                           x  y  f(x,y)
> 
> ( Interpolation[] doesn't like this )

In the book "Mathematica Graphics" by Tom Wickham-Jones there is code
for TriangularInterpolate which generates a function for approximating
irregular data.

Cheers,
	Paul 
____________________________________________________________________ 
Paul Abbott                                   Phone: +61-8-9380-2734
Department of Physics                           Fax: +61-8-9380-1014
The University of Western Australia           
Nedlands WA  6907                     mailto:paul at physics.uwa.edu.au 
AUSTRALIA                              http://www.pd.uwa.edu.au/Paul

            God IS a weakly left-handed dice player
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