Load Sfit data in Simulink

I try to implement fitted surface data of type sfit in simulink such that it can be used as a lookup table z = f(x,y). However, there does not seem a clear method to apply this. With the Matlab function block, the variable cannot be loaded from memory and cannot be called using global variables. Is there a way to load the surface fit or is there another method to implement this?

Answer 1

[Sachin]

Hi

I understand that you want to load sfit data in Simulink.

I suggest you to first load the sfit data from the memory by following “load” function. After loading the data evaluate the data using “z = fevel(data,x,y)” . Then try using the output in the MATLAB function block in Simulink.

Refer the below MATLAB documentation to know more about “fevel” function :

https://in.mathworks.com/help/matlab/ref/feval.html

Refer to this MATLAB Answer for more information about using fitted data in Simulink.

https://in.mathworks.com/matlabcentral/answers/514162-how-to-use-cfit-objects-in-simulink?s_tid=srchtitle

Hope this helps you