[SciPy-User] interpolation with CloughTocher2DInterpolator

[Evan Mason]

Hi, first I'd like to say thank you to the developers for the new 
interpolation options in scipy 0.9.0 (griddata, CloughTocher2DInterpolator).

I have a question however about functionality.  Using matplotlib's delaunay 
I can do:

tri = delaunay.Triangulation(x, y)
zi  = tri.nn_interpolator(z)

Once I have computed 'tri', I can then reuse it for successive 
interpolations of a changing z.  This saves a lot of time as I 
have sequences of z in the hundreds. 

But this approach doesn't seem to be possible with 
CloughTocher2DInterpolator, as every call needs x, y, z:

CloughTocher2DInterpolator(points, values, tol=1e-6)

My question is whether this functionality could be built into 
future releases of CloughTocher2DInterpolator?

Thanks a lot,

Evan