I wrote a C S function which has a variable number of states depending on one parameter, which is passed to it (I'm using computational fluid dynamics and the parameter is the number of cells). I want to output a bus object from my S function that contains a temperature profile. Problem is I don't know the length of the output when I create the bus object in Simulink (in Bus Editor). Is there a way to dynamically set the size of the bus object from the C S function?
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I think you can set the
DimensionsModeproperty to "variable" instead of "fixed" (the default). SeeSimulink.BusElementand Variable-Size Signal Basics in the documentation for more details. Not sure how to code this in the S-function though.