How to set Stateflow properties in Stateflow Model Explorer using matlab script?

Hi all, I know that in Simulink Block Properties / Handles can be called and set using the set_param and get_param commands, respectively. How to do so for Stateflow Model Explorer Properties using matlab script?

>> Example: I have a model called “TestModel.mdl” which contains a Stateflow Chart “MyChart” at a deeper level: ‘TestModel/SubSystem_A/MyChart’. I would like to Add Data in the Model Explorer by means of a command in a m-file, with example properties;

Name: "PresParam_A"

Scope: Parameter

Size: <empty>

Complexity: Off

Type: Double

Answer 1

[Fangjun Jiang]

See Create and Destroy Stateflow API Objects

clear;close all;
sfnew;
rt=sfroot;
ch=rt.find('-isa','Stateflow.Chart');
d1=Stateflow.Data(ch)

then specify the properties of the data

[Shady Nada]

Hi Fangjun,

This helps me to create Statflow objects, such as States, Transitions and their corresponding properties (e.g. position). Yet, I am still struggling to acces the Model Explorer by script and add data (e.g. input, Local etc).

A direct example or a web-link with direct examples would be usefull.

[Fangjun Jiang]

see samples added in the Answer

[Shady Nada]

Thanks Fangjun!

It still took a while to figure out how to specify the properties, yet your answer helped me in searching.

For all others who might benefit from this, below the exact solution:

% obtain a handle to the Root object

rt = sfroot;

% Use the handle to the Root object, rt, to find the Model object and assign it a handle as follows

m = rt.find('-isa', 'Simulink.BlockDiagram')

% Access the new Chart object and assign it to the workspace variable as follows

ch = m.find('-isa','Stateflow.Chart');

% Specify Properties

d1 = Stateflow.Data(ch); %add Data

d1.name = 'chm_e_actu_test_state'; %set Name

d1.scope = 'Parameter'; %set Scope

d1.datatype = 'Inherit: Same as Simulink'; %set DataType

% I was not able to speciy 'Complexity' or 'Size'. Be default this is 'Off' and '-1', respectivly.

Also see: https://de.mathworks.com/matlabcentral/answers/92202-how-do-i-access-stateflow-data-parameters-from-the-command-line-in-stateflow-7-8-r2011b