i am trying to display the dialog parameters of all blocks in a simulink model. But i am not getting the exact result. Can anyone help me in this?

i am trying the following program to display the dialog parameters of all blocks using get_param. but this is not showing any result. is there any mistake in the below program?

modelname = 'model1';

load_system(modelname);

blocks = find_system(modelname, 'LookUnderMasks', 'all', 'FollowLinks', 'on', 'Type', 'Block');

% Display the dialog parameters of each block

disp('Block Dialog Parameters:');

for i = 1:numel(blocks)

blockPath = blocks{i};

disp('---');

disp(['Block Path: ', blockPath]);

dialogParams = get_param(blockPath, 'DialogParameters');

if isempty(dialogParams)

disp('No dialog parameters in the block.');

else

disp('Parameters:');

paramNames = fieldnames(dialogParams);

for j = 1:numel(paramNames)

paramName = paramNames{j};

paramValue = dialogParams.(paramName);

% Display the parameter name and value based on the data type

if isnumeric(paramValue)

disp([paramName, ' = ', num2str(paramValue)]);

elseif ischar(paramValue)

disp([paramName, ' = ', paramValue]);

else

disp([paramName, ' = ', class(paramValue)]);

end

end

end

end

[Fangjun Jiang]

Use the built-in diff tool, visdiff()

https://www.mathworks.com/help/simulink/ug/compare-simulink-model-files.html

[Malu]

iam trying to compare 2 models programmatically. Thats why

[Malu]

is there any way to display dialog parameters of all blocks ?

[Fangjun Jiang]

visdiff() is the one to use. Check the doc to see its output.

https://www.mathworks.com/help/simulink/model-comparison.html

[Malu]

i am trying to display only the functional changes between both versions programmatically. i have tried visdiff. but customising a filter to show functional changes only is not working for me. so trying to do in this way

Answer 1

[Fangjun Jiang]

"paramValue" turns to be a struct. All its field values are struct, so your code ends up running this line for all iterations.

else
    disp([paramName, ' = ', class(paramValue)]);
    end
    

Using struct2cell(paramValue) and celldisp() might help but I wonder what is the purpose. There are so many dialog parameters for each block and usually there are many blocks in a model.

[Malu]

My intention is to compare two versions of a simulink model programmatically by comparing all its dialog parameters between respective blocks and see the differences between them. So as a first step i am trying to see the dialog parameters

[Malu]

Above suggestion didnt work for me. It is not displaying any dialog parameters but only displays the blockpath of all specified blocks.

modelname = 'model1';

load_system(modelname);

% Find all MinMax blocks in the model

minmaxBlocks = find_system(modelname, 'BlockType', 'MinMax');

% Display the dialog parameters of each MinMax block

disp('MinMax Blocks and their Dialog Parameters:');

for i = 1:numel(minmaxBlocks)

blockPath = minmaxBlocks{i};

disp('---');

disp(['Block Path: ', blockPath]);

dialogParams = get_param(blockPath, 'DialogParameters');

dialogParams1 = struct2cell(dialogParams);

celldisp(dialogParams1);

end