Is there a way to get MATLAB Function name defined in Simulink block programmatically ?

2023 2 1
2 个回答
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更新时间：2023 2 2
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0 个投票

  • I would like to know whether the MATLAB Function block created in Simulink can be programatically check or parameters of the function can be obtained.
  • For example
y = fcn(u) or y = FunctionName(u)
I would like to get the function name fcn or FunctionName

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 采纳的回答

Paul
Paul 2023-2-2
Ran in:

1 个投票

Ran in:
Finding the function line is easy because it's the first line that starts with "function". Just need to deal with the different possibilities for the function signature.
For example, to find the function line
config = get_param(gcb,'MatlabFunctionConfiguration');
fline = strip(split(string(config.FunctionScript),newline));
fline = fline(startsWith(fline,"function"))
fline = fline(1);
fline =
"function img = fcn(lambd,m,n)"
% assign to fline here to see rest of processing to find the function name
fline = "function img = fcn(lambd,m,n)";
% this logic for typical signature: function (outputlist) = fcn (inputlist)
if contains(fline,"=")
fline = extractAfter(fline,"=")
if contains(fline,"(")
function_name = strip(extractBefore(fline,"("))
end
end
fline = " fcn(lambd,m,n)"
function_name = "fcn"
Would need to implement logic for all possible function signatures.

更多回答（1 个）

Fangjun Jiang
Fangjun Jiang 2023-2-1

1 个投票

myconfig = get_param(gcb, 'MATLABFunctionConfiguration') and parse the text, you might be able to get it.
web(fullfile(docroot, 'simulink/slref/simulink.matlabfunction.matlabfunctionconfiguration.html'))

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Shiva Haresh
Shiva Haresh 2023-2-1
I tried this already but I couldn't get the function name as output.
for example,
  • system = load_system('sacv.slx');
  • x = get_param(gcb, 'MATLABFunctionConfiguration');
Did I miss another step here?
Fangjun Jiang
Fangjun Jiang 2023-2-1
编辑：Fangjun Jiang 2023-2-1
You need to parse x.FunctionScript
The function name shows up on the icon and it changes as the user changes the function name. So I think it's already been parsed but I couldn't find it through block properties or 'MATLABFunctionConfiguration'
Shiva Haresh
Shiva Haresh 2023-2-1
But this FunctionScript has the entire input and output along with the function name.

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