Avoid searching the commented out logic seach in Stateflow API.

I'm using a script to find all the parameters used in Stateflow logic of the model.

rt = sfroot;

m= rt.find('-isa','Stateflow.Chart'); % If not used in Simulink , Check in stateflow

params_sf = m.find('-isa', 'Stateflow.Data','Name',c_name);

*c_name - has the parameter name

But the only issue in this finds the parameters which are involved also in commented out statecharts.

How can i avoid searching in Commented out statecharts ??

Answer 1

[Uday Pradhan]

Hi Arjun,

According to my understanding, you want ignore the charts that are commented in the Stateflow logic of your model. To do this, you can create a custom filtering function to be used along with "find". Example:

f = @(h) (strcmp(get_param(h.path,'Commented'),'off')); %for the chart, return true if it is not commented
m = rt.find('-isa','Stateflow.Chart','-and','-function',f); %only returns those charts which are uncommented

I hope this helps!

[Arjunkrishna Mitta]

I tried the above but its not working .. The variable f doesnt have any value stored after evaluation.

[Uday Pradhan]

Hi Arjun, Please elaborate. Is it not filtering commented charts?

[Arjunkrishna Mitta]

Sorry its my mistake its working now. I had used rt.path which was NULL ... But changing it to just rt solved the issue. Its working as expected Thank you

[Uday Pradhan]

That's nice to hear, Arjun!

[Arjunkrishna Mitta]

Hello Uday can you cross check the syntax. Because its also finding parameters in stateflow which are not commented as well.

        rt = sfroot;
        f = @(rt)(strcmp(get_param(rt,'Commented'),'off'));%for the chart, return true if it is not commented
        m = rt.find('-isa','Stateflow.Chart','-and','-function',f); 
        params_sf = m.find('-isa', 'Stateflow.Data','Name',c_name);

[Arjunkrishna Mitta]

I'm unable to find documentation as well for the custom filter you mentioned. even the link to documentation helps

[Uday Pradhan]

get_param(blockName,'Commented') returns 'on' or 'off' according to if the block is commneted or not. So I used this property to check if a chart if commented or not. In its present form:

  f = @(rt)(strcmp(get_param(rt,'Commented'),'off'));%for the chart, return true if it is not commented
  m = rt.find('-isa','Stateflow.Chart','-and','-function',f); 

Should give charts that are NOT commented. I assume that is what you originally asked for. Here are the documentation pages I followed: find (check example section) and get_param.