[Dune] Multilinear interpolation in Dune?

Aleksejs Fomins aleksejs.fomins at lspr.ch
Tue Jun 2 12:23:27 CEST 2015


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Dear Atgeirr,

If I understand correctly, you want to find a linear function for 5d coordinate, given 6 example mappings.

I suppose that such functionality should be provided by dune-geometry module, specifically multilinear geometry.

If for some reason this does not work, you can also simply stack all of your sample coordinates into a Dune::FieldMatrix and invert it, that would be your interpolatory mapping.

Hope this helps,
Aleksejs



On 02/06/15 11:51, Atgeirr Rasmussen wrote:
> Dear Dune!
> 
> We have a need for multilinear interpolation (5d), and I thought perhaps it already exists in Dune,
> however I could not find any such feature (I looked briefly in dune-common). If this exists already
> we would prefer to use it, otherwise we are considering the following library:
> 
> http://rncarpio.github.io/linterp/
> 
> So have I missed something, perhaps in a different module than dune-common?
> 
> Yours,
> Atgeirr Flø Rasmussen
> 
> 
> _______________________________________________
> Dune mailing list
> Dune at dune-project.org
> http://lists.dune-project.org/mailman/listinfo/dune
> 
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