Looking for triangulator/interpolator

[Scott David Daniels]

Grant Edwards wrote:
> I need to interpolate an irregularly spaced set of sampled
> points: Given a set of x,y,z points, I need to interpolate z
> values for a much finer x,y grid.
> 
> I tried using the scipy sandbox delaunay module, but the
> interpolators don't work: the natural neighbor interpolator
> produces a surface with "holes" in it: the interpolator returns
> NaNs for no reason for certain regions within the convex hull
> (the convex hull looks right, and the input Z values in that
> region don't look any different that regions that work).  

Sounds like a great opportunity for you to contribute.  The easiest
contribution would be to find as small a case as you can that
demonstrates the problem, fixing it and add a test case would be,
obviously, a greater contribution.

--Scott David Daniels
scott.daniels at acm.org