How to change all the block and signal names in Simulink to lower case in one instant?

I want to change all the signal names and block names in the Simulink model to lower case in one instant. How to achieve this?

Answer 1

[MathWorks Support Team]

As of MATLAB R2024a, you will need to manually change all the names to lowercase or write a custom script to achieve this. To convert all block names in your Simulink model to lowercase, you can follow these steps to create a custom script:

1. Obtain the names of all the blocks in your Simulink model using the "get_param" method.
2. Convert these names to lowercase using the "lower(str)" function.
3. Update the block names by applying the "set_param" method.

Below is an example script to convert all block names to lowercase:

% Open your Simulink model
modelName = 'your_model_name'; % Replace with your model name
open_system(modelName);

% Get all block handles in the model
blocks = find_system(modelName, 'Type', 'Block');

% Loop through each block to process names
for i = 1:length(blocks)
    % Get the current block's name
    currentBlock = blocks{i};
    blockName = get_param(currentBlock, 'Name');
    
    % Convert the block name to lower case
    newBlockName = lower(blockName);
    
    % Change the block name using set_param if the name has changed
    if ~strcmp(blockName, newBlockName)
        set_param(currentBlock, 'Name', newBlockName);
    end
end

% Save and close the model
save_system(modelName);
close_system(modelName);