How can I change fsurf color according to a third function

Hi,I'm looking for a way to change the color of "fsurf" surfaces according to another function (that's not the one that gives ZData). What I'd like to do is plotting a 3D graph of the absolute value of a complex function and painting it with it's phase.

With "surf" is simple 'cause I can specify the "C" field (Color for each vertex) after the axes functions: I'd define a grid of x and y and then

z = complex(x,y);
fz = some function of z
surf(x,y,abs(fz),angle(fz),'EdgeColor','none');
colormap(hsv)
...

Is there something like this for "fsurf"? Thank you,Andrea.

[KSSV]

What is fsurf ?

[Stephen23]

@KSSV: MATLAB has a set of functions that plot function handles (such as fsurf, which creates a surface like surf does with numeric data, fmesh, fplot, fplot3, etc). These functions automagically generate an appropriate set of independent data points to plot the function over, such that the main details of the plot are shown. See more of these functions here:

https://www.mathworks.com/help/matlab/surface-and-mesh-plots-1.html

https://www.mathworks.com/help/matlab/line-plots.html

[KSSV]

Okay introduced in 2016a....I am using a lower version.