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Re: Is someone working on 2d interpolation?
- From: Brian Gough <bjg at network-theory dot co dot uk>
- To: Achim Gädke <Achim dot Gaedke at physik dot tu-darmstadt dot de>
- Cc: gsl-discuss at sources dot redhat dot com
- Date: Wed, 25 Jun 2003 14:20:53 +0100
- Subject: Re: Is someone working on 2d interpolation?
- References: <3EF89E7D.6040509@physik.tu-darmstadt.de>
=?ISO-8859-15?Q?Achim_G=E4dke?= writes:
> For graphical evaluation, I need to interpolate these values.
> Furthermore I plot isolines for H. I've already implemented an
> interpolation formula for rectangular sample values (0,0),
> (0,1),(1,0),(1,1) . Inside this square I use the interpolation
> H=a*x+b*y+c*x*y+d with a=H(1,0)-H(0,0), b=H(0,1)-H(0,0),
> c=H(1,1)+H(0,0)-H(0,1)-H(1,0), d=H(0,0)
> This results in a continuous surface with hyperbola isolines.
>
> But I'd like to have a smoother solution. Is anyone working on such code?
Not to my knowledge. I think there must be some GPL or public domain
contour plotting rouines availble somewhere though.
Brian