How can I bring values from components of app designer into a matlab script that configures simulink models and is started by app designer?

Hello,

my aim is to design an app as a GUI in app designer that can be used to configure and start some matlab scripts to run and evaluate a simulink model. Because I want to have the possibility to change parameters that are used in the script/simulink model via GUI (graphic user interface designed in app designer), I have to bring these values from the app designer components into the matlab script. I already tested to implement that with properties (access = public), but it didn't work.

Does anyone have an idea how to do this as smartly as possible?

Answer 1

[Divyanshu]

I have created a demo App using AppDesigner and a demo model in Simulink whose block parameters I am updating from the App itself. Here is the Code View of App->

methods (Access = private)

    % Code that executes after component creation
    function init(app)
        app.a = 5;
    end

    % Button pushed function: LaunchModelButton
    function launchModel(app, event)
        launchModel(app.a);
    end

    % Value changed function: Gain_ParamEditField
    function update_prop_a(app, event)
        value = app.Gain_ParamEditField.Value;
        app.a = value;
    end
end       

Here is the MATLAB script ‘launchModel’->

function launchModel(a)
    k = int2str(a);
    open_system('demoModel1');
    set_param('demoModel1/Gain','Gain',k);
    open_system('demoModel1/Scope');
    sim('demoModel1');
end

Here is the model 'demoModel1'->