convert fit data to matrix

So I created a table of x, y and z values and input them into fit using

f = fit([T.x, T.y],T.z,'cubicinterp')

they create the plot I would like but f is not a matrix for further processing.

Is there any way of getting z values for the fit object? I would like the output to be a 512x512 matrix

Sorry pretty new to matlab

Answer 1

[Sanket Karnik]

I understand that you want to fetch the z values from the fit object. Please refer to the following link which speaks about obtaining y values from the curve fitting tool: Get Y values from Curve Fitting Tool

You can use use the same method to obtain z values from fit object.

[David Pitcher]

Thanks Sanket I used the below code which seems to have worked too

[x2,y2] = meshgrid(1:512,1:512);
f2 = [f(x2,y2)];