Feature request: Sample grid points support

[FlorianWolters]

First of all: This project is awesome.

I would like to see support for the X, Y and Z arguments of MATLABs interp[n] functions (I am mainly interested in interp2). The splinterp documentation states the following:

Note that splinterp assumes the coordinates of the data are an integer grid and thus does not support the X, Y, Z parameters to the MATLAB equivalents.

Can you add this functionality maybe?

[Mark91P]

Thank you for this awesome project!!

I would like to ask, like the issue comment before, the support to the MATLAB notation
interped_value = interp3(X,Y,Z,V,XQ,YQ,ZQ)
with the grid that can be a non integer argument (i.e. x=0.1:0.1:100)

thank you again!

[apryor6]

Thanks for the feature request and support. I've been quite busy lately, and so have been slow to act on this particular project, but I will eventually get around to adding this.

For a hack solution, you can convert a regularly-spaced, non integer grid into an integer-grid that can be fed to the code by dividing the vector by the interval size and shifting the origin like so

x = linspace(-2,2,20)
dx = x(2)-x(1)
new_x = 1 + (x-min(x))/dx