Attempting to find all blocks in a subsystem that conform to external criteria.

I'm attempting to find all blocks in a simulink subsytem that have positions within bounds determined by another block's position. When I run the code below. I see this error:

Error using Simulink.findBlocks Option 'MatchFilter' must be a valid MATLAB function handle.

Code will run fine without the second input to 'below_current'.

Is there a way to use FindOptions and MatchFilter with a function using additional inputs?

blk_copy_pos = get_param(gcbh,'Position');
blk_hndls = Simulink.findBlocks(base_block,Simulink.FindOptions('MatchFilter', {@below_current,blk_copy_pos},'SearchDepth',1));

function match = below_current(blk,blk_copy_pos)
match = false;
blk_pos = get_param(blk,'Position');
if blk_pos(4) > blk_copy_pos(2) && blk_pos(3)  >= blk_copy_pos(1) && blk_pos(1) <= blk_copy_pos(3)
     match = true;
end
end

Answer 1

[SAI SRUJAN]

Hi Brandon Emch,

I understand that you are attempting to find all the blocks in a simulink subsystem that have positions within the bounds determined by another block's position.However you are facing an issue with Simulink.findBlocks and 'MatchFilter' option.

I can see that you are trying to pass arguments to the function handle as a Value pair to the option 'MatchFilter',which is leading to an error.The following code is an example on how to pass the arguments to the function.

myVariable=2;
function myFunction()
    % Access a variable from the base workspace
    myVariable = evalin('base', 'myVariable');
    % Use the variable in your function
    disp(myVariable);
end

You can use the evalin function to solve the problem that you are facing.For further insights, I have provided links to relevant documentation.

Find blocks in Simulink models - MATLAB Simulink.findBlocks - MathWorks India

Specify options for finding blocks in models and subsystems - MATLAB - MathWorks India