Is there a 'find and replace' functionality for Simulink block parameters?
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MathWorks Support Team
on 7 May 2018
Answered: Song-Hyun Ji
on 12 Jul 2023
I have a model with many blocks which use the same variable as the values for block parameters. Now I would like to change the variable name, but do not want to manually update each block parameter. Is there any way to find and replace all of these block parameters with the updated variable name?
Accepted Answer
MathWorks Support Team
on 19 Apr 2023
Edited: MathWorks Support Team
on 19 Apr 2023
Please use the documented workflow in the GUI:
https://in.mathworks.com/help/releases/R2022b/simulink/ug/workspace-variables-in-model-explorer.html
If you need a programmatic way, you can use the Simulink API to create a function doing it.
An example implementation can be found in the following:
function [replacedBlks,replacedProperties] = findReplaceParamInMdl(mdl,oldParamName,newParamName)
arguments
mdl (1,:) char {mustBeText}
oldParamName (1,:) char {mustBeText}
newParamName (1,:) char {mustBeText}
end
replacedProperties = cell.empty(0,1);
%Can be used to specify where the search needs to be done, etc.
opts = Simulink.FindOptions("FollowLinks",false);
replacedBlksH = Simulink.findBlocks(mdl,'BlockDialogParams',oldParamName,opts);
for idxBlockToReplace = 1:length(replacedBlksH)
tempBlock = replacedBlksH(idxBlockToReplace);
dlgParamsStruct = get_param(tempBlock,'DialogParameters');
dlgParams = fieldnames(dlgParamsStruct);
replacedPropertiesBlk = string.empty(0,1);
for j = 1:length(dlgParams)
if strcmp(get_param(tempBlock,dlgParams{j}),oldParamName)
set_param(tempBlock,dlgParams{j},newParamName)
replacedPropertiesBlk = [replacedPropertiesBlk; string(dlgParams{j})];
end
end
replacedProperties = [replacedProperties;{replacedPropertiesBlk}];
end
replacedBlks = getfullname(replacedBlksH);
end
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More Answers (1)
Song-Hyun Ji
on 12 Jul 2023
Since R2021a, you can use "Find and Replace Text" to replace the found text at once in Finder as in the below-captured image.
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