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how to delete (all) Requirement Traceability links of Stateflow transition-lines by command

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Leo Zhai
Leo Zhai on 21 May 2020
Commented: Leo Zhai on 29 May 2020
Hello,
I want to delete all Requirement Traceabilities of the stateflow transition-lines by command (they are too many, it so suffering to delete one by one manually)
all my efforts only reach bellows
1. % remove the Requirement-links
set_param(#Targtet#, 'RequirementInfo', '');
2. % get all stateflow transitions
S = sfroot;
myModel = S.find('-isa', 'Simulink.BlockDiagram', '-and', 'Name', bdroot);
charts = myModel.find('-isa', 'Stateflow.Chart');
charts.find('-isa', 'Stateflow.Transition') % ans = Stateflow.Transition: 55-by-1
BTW: I know I could select several lines and delete at once, while it helps few for my very-complicated model.
Thanks to all reviewing/answering it.

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Accepted Answer

Gautam
Gautam on 22 May 2020
I'm assuming that you have your 55x1 array of transition objects with you. Post that you can use 'rmi' API to programmatically handle requirements. Here's a doc link: https://www.mathworks.com/help/slrequirements/ref/rmi.html#d120e5121
Continuing your code, assuming all 55x1 transitions are in a variable tr:
tr = charts.find('-isa', 'Stateflow.Transition') % ans = Stateflow.Transition: 55-by-1
for i=1:length(tr)
current_object = tr(i);
if(rmi('count',current_object)~=0) %Check if no of requirements linked to the transition is nonzero
rmi('clearAll', current_object,'noprompt') % Delete the requirements without throwing a dialog prompt
end
end
You can use rmi and automate this process for other stateflow objects like states as well.

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