MATLAB: How to convert a struct into a bus

Question

Hi

I need to create a bus for simulink, and to avoid to do it manually i generated a struct usingi different for cycles

Now i have a struct that conains simple values and other struct.

es=

car.id=1

car.engine.pistons.compression_ring.maintenance_time

car.engine.pistons.compression_ring.maintenance_cost

car.engine.pistons.oil_control_ring

car.engine.bearings

car.body.door

ecc…

Now i need to trasform this struct into a bus object but i really can't find how

I find a lot of solution on matlab like:

struct2bus and others like Simulink.Bus.cellToObject(busCell) without any luck

or also this one:

https://it.mathworks.com/matlabcentral/answers/98993-how-do-i-create-a-bus-object-from-a-struct-in-my-workspace-using-simulink-7-4-r2009b

thanks

Answer 1

I use the function Simulink.Bus.createObject(struct)

For your problem use the following lines:

% Create Model Struct
car.id = 1;
car.engine.pistons.compression_ring.maintenance_time = 2;
car.engine.pistons.compression_ring.maintenance_cost = 3;
car.engine.pistons.oil_control_ring = 4;
car.engine.bearings = 5;
car.body.door = 6;
% Create Estimation Data Bus for Simulink Model
car_bus_info = Simulink.Bus.createObject(car);
car_bus = evalin('base', car_bus_info.busName);

In Simulink use a constant block and define the constant value as car. Under Signal Attributes --> Output data dype define Bus: car_bus.

I hope that solves your problem