"Christoph Hormann" <chr### [at] gmxde> wrote in message
news:3EB6C119.CDCD35AA@gmx.de...
>
>
> Thorsten Froehlich wrote:
> >
> > > Since the whole thing seems to be about 3D arrays it will probably be more
> > > convenient to use df3 density files.
> >
> > Why?  A one dimensional array is used to represent arrays of any dimension
> > in every computer system anyway.
>
> Well, you see it from the theoretical point of view, i from the practical
> side... :-)
>
> Christoph

This seems a good solution too Christoph. I've downloaded the patch and give it a
try.
Tri-cubic may be enough for the interpolation. I can always fall back at Thorstens
solution, although I've to figure out how to extract one value out off a
PPM-image.

Thanks for this solution!

Jaap Frank

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