How to get list of constant blocks in model and its default value in Matlab?

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Vamsee Nama 2018-8-30

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回答： Akhlaq Ahmad 2022-4-17

I would like to see the names of all the constant blocks in my model along with its default values, is there any way to get it?

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Answer 1

Stephen 2018-8-30

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I would recommend you investigate the "find_system" function in the help files.

The first command you need is likely some variant of:

constantBlocks = find_system(bdroot,'LookUnderMasks','all','BlockType','Constant');

I'm not certain what you mean by the "default" values of the constant blocks. But the find_system command will give you a list of constant blocks, which you can cycle through access the strings in the "Value" parameter on each block, if that's what you're looking for.

numConstant = size(constantBlocks,1);
blockValues = cell(numConstant,1);
for ptr = 1:numConstant 
blockValues{ptr} = get_param(constantBlocks{ptr},'Value');
end

From there, you should be able to see the value, or evaluate the parameter assigned to the value.

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Vamsee Nama 2018-8-30

Thanks, I was using third party Block sets where the constant blocks have a parameter called default value, I was able to extract the values also by modifying a bit of your code.

Mahalakshmi Sivakumar 2021-3-2