MATLAB: How to programmatically determine which of the Stateflow symbols have a “local” scope

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Is it possible to use the Stateflow API to determine which of my Stateflow symbols have a local scope?

Best Answer

First, enter the following commands in the MATLAB command window to grab all Stateflow symbol data:

>> rt = sfroot;
>> m = rt.find('-isa','Simulink.BlockDiagram');
>> symbols = m.find('-isa','Stateflow.Data')

You can then index into the "symbols" variable to see all the elements of that symbol that can be programmatically accessed. For example, if running the above commands returned a "Stateflow.Data: 3-by-1", then you can see the details for the first element using the following MATLAB command:

>> symbols(1)

You could directly access any of the properties displayed, such as the scope, using the following command:

>> symbols(1).Scope

Related Solutions

MATLAB: How can the handle to the currently visible Stateflow.Box object be obtained

The command returns an empty handle because the Stateflow.Box constructor does not have a 'Visible' method. Hence, it would not be possible to programmatically query the currently visible Box object similar to how a Chart object is queried.

There are two possible ways in which this can be achieved:

1. If you are interested in programmatically querying and obtaining a handle to a currently visible Stateflow Object (chart, box, state etc.), click on the object-of-interest* *and then *u*se the 'sfgco' command. Documentation here:

http://www.mathworks.com/help/stateflow/ref/sfgco.html

2. If you are already aware about the names of the objects to be queried, then it is possible to directly filter these objects out by using their names:

>> c = s.find('-isa', 'Stateflow.Chart', '-and', 'Name', 'chart_name');
>> b = s.find('-isa', 'Stateflow.Box', '-and', 'Name', 'box_name');

Using the 'Name' property would return the handles to the required objects directly.

MATLAB: How to get the initial value of a output variable of a Stateflow chart programmatically

Below is the typical steps of getting/changing the initial value of an output variable of a Stateflow chart:

>> b_obj = get_param('path/to/chart', 'Object');
>> c_obj = b_obj.find('-isa','Stateflow.Chart');
>> c_data = c_obj.find('-isa','Stateflow.Data');
>> iniValue = c_data(2).Props.InitialValue; % assuming the output is the second data entry
>> c_data(2).Props.InitialValue = '[1 0 2]';

Best Answer

Related Solutions

MATLAB: How can the handle to the currently visible Stateflow.Box object be obtained

MATLAB: How to get the initial value of a output variable of a Stateflow chart programmatically

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