MATLAB: Propagate Library block UserData to linked blocks

librarysimulinkuserdata

Hi,

I have come across a situation where I need to propagate the UserData of a library block downstream to the linked blocks when the library is updated.

I dont think it happens automatically since I can see a discrepancy between my updated library block and the linked block when i use get_param.

Help appreciated, thanks!

MATLAB 2017b.

Best Answer

Solved this by adding a callback that copies over 'UserData' to linked blokc from a library.

Related Solutions

MATLAB: Copying a simulink library block without its link

If you have masked your block then it is easy to disable the link of block every time block is added in the model from library. In initialization pane of Mask Editor dialog box enter below command.

set_param(gcb,'LinkStatus','none');

If you are using block without masking, then in PreSaveFcn or PostSaveFcn callback function of your model, write code to find all your library blocks using find_system() and set their 'LinkStatus' to 'none'. In this way, when your model will be saved, library link will be disabled.

MATLAB: UserData goes empty when I use restore link

Does the note on associating-user-data-with-blocks solve your problem?

Setting UserDataPersitent does:

 The following command saves the user data associated with a block in the model file of the model containing the block.

Does this mean, that you have to save the block to store the user data also? If so, did you save the block after setting the UserData?

Best Answer

Related Solutions

MATLAB: Copying a simulink library block without its link

MATLAB: UserData goes empty when I use restore link

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