How to pass mask parameters in a child Matlab function ?
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Alexandre SAULNIER
2022 年 6 月 9 日
コメント済み: Alexandre SAULNIER
2022 年 6 月 10 日
Hello everyone,
In my model, I created a masked subsystem with many parameters (around 90 parameters). In this subsystem, I introduced a Matlab function and I need to use the parameters I defined earlier in the parent-subsystem mask to resolve equations.
The content of the parent masked-subsystem is represented in the screenshot below :
The yellow blocks correspond to blocks which use a parameter from the mask upper in the block hierarchy and these parameters are recognized. However, they're not in the Matlab function.
I looked on the help center but no topics correspond to the issue I'm encountering. I don't want to create a mask for the Matlab function with the same parameters or to add around 90 constant blocks grouped by a bus to send it to the Matlab function.
So, here is my question : why does Matlab function not recognize the mask parameters ?
I kindly thank you in advance for your answers,
Best regards
AS
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Fangjun Jiang
2022 年 6 月 9 日
For those yellow blocks or any of the typical Simulink blocks, there is a block parameter dialog, where you can specify a variable for a parameter. This variable is usually defined in workspace, but you can mask it and provide its value through mask dialog. This is how mask works.
So you need to add a "parameter" to the MATLAB Function. Click "edit data" button at the Editor, add a data and specify it as "parameter".
3 件のコメント
Fangjun Jiang
2022 年 6 月 9 日
If the MATLAB Function block has 80 parameters, then those parameters need to be defined by the MATLAB Function itself, to achieve the intended behavior.
If those 80 parameters need to appear in the mask dialog, then you need to mask them. There is no other way. This is already the simpliest way without the need for extra work (such as creating 80 Constant blocks and feeding them as inputs to the MATLAB Function block).
Regarding parent subsystem, you can mask a parameter that is located several levels of subsystems inside. I am not sure whether there is a constraint on non-virtual subsystems.
To mask 90 parameters is not a good UI. There is not enough screen space (even with table). I suggest using a file. The user can modify the file. The file is read in during initilization to set the parameter values.
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