Hi @Gareth
I understand that you need to intact the mask parameters when converting a library block to a referenced subsystem and using Simulink.BlockDiagram.refreshBlocks(). You may use the following steps to ensure that the set mask parameters of the newly converted reference block are kept in each instance within the model and are not reverted back to their default values:
- Use Mask initialization and storing the mask parameters:
% Mask Initialization Callback of the referenced subsystem block
function setupMask(block)
% Store mask parameters in the model workspace or data dictionary
set_param(block, 'UserData', get_param(block, 'MaskValues'));
end
- Restore Mask Parameters: After running Simulink.BlockDiagram.refreshBlocks(), use a post-refresh callback to retrieve the stored mask parameters and reapply them to the updated instances of the referenced subsystem blocks.
% Post-Refresh Callback to restore mask parameters
function restoreMaskParameters(model)
blocks = find_system(model, 'BlockType', 'SubSystem', 'ReferenceBlock', 'myReferencedSubsystem');
for i = 1:length(blocks)
storedMaskValues = get_param(blocks{i}, 'UserData');
if ~isempty(storedMaskValues)
set_param(blocks{i}, 'MaskValues', storedMaskValues);
end
end
end
Documentation for:
- Associating User Data with Blocks: https://www.mathworks.com/help/simulink/ug/associating-user-data-with-blocks.html
- find_system: https://www.mathworks.com/help/simulink/slref/find_system.html#bu32w05-2
Thank you,
Ayush Jaiswal
