[SciPy-user] 2D interpolation from a set of irregularly spaced positions in python?
Robert Kern
rkern at ucsd.edu
Tue Jul 19 10:43:21 EDT 2005
Eric Emsellem wrote:
> Hi,
>
> I have a very simple problem which I am not able to solve with my
> current knowledge of scipy/python/...
>
> I have a set of positions X, Y, and intensities Z provided in 1D arrays.
> The positions are NOT at all on a regular grid.
>
> Now for a new position Xnew, Ynew I would like to get the *interpolated*
> Znew value, and if possible trying different schemes such as "bilinear",
> "cubic", etc... I also would like to know if my point is EXTRApolated or
> not so I can decide what to do (either take the extrapolated value or
> exclude it).
Look at Scientific.Functions.Interpolation . It's only one scheme, but
it does the job.
http://starship.python.net/~hinsen/ScientificPython/
--
Robert Kern
rkern at ucsd.edu
"In the fields of hell where the grass grows high
Are the graves of dreams allowed to die."
-- Richard Harter
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