Load Sfit data in Simulink

Question

Miroslaw Faes 2023-5-1

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1956004-load-sfit-data-in-simulink

回答： Sachin 2023-5-11

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?

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Answer 1

Sachin 2023-5-11

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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