Copy contents of subsystem to empty block diagram
Simulink.SubSystem.copyContentsToBlockDiagram(subsys, bdiag) copies the contents of the subsystem subsys to the block diagram bdiag. The subsystem and block diagram must have already been loaded. The subsystem cannot be part of the block diagram. The function affects only blocks, lines, and annotations; it does not affect nongraphical information such as configuration sets.
This function cannot be used if the destination block diagram contains any blocks or signals. Other types of information can exist in the destination block diagram and are unaffected by the function. Use Simulink.BlockDiagram.deleteContents if necessary to empty the block diagram before using Simulink.SubSystem.copyContentsToBlockDiagram.
Copy the graphical contents of f14/Controller, including all nested subsystems, to a new block diagram:
% open f14 open_system('f14'); % create a new model newbd = new_system; open_system(newbd); % copy the subsystem Simulink.SubSystem.copyContentsToBlockDiagram('f14/Controller', newbd); % close f14 and the new model close_system('f14', 0); close_system(newbd, 0);