How to highlight a connection in stateflow?

To point out the new updates made on a model I looking for a means to highlight the connections and states on a stateflow. On a simulink model it can be done by changing the foreground color.

Answer 1

[Vedant Shah]

Hi @Aditya Kaki,

InStateflow, unlike Simulink, there is no direct built-in method to change the foreground color of transitions or connections either through the GUI or programmatically. However, there are several effective workarounds to highlight transitions and states.

One approach is to addlabels or annotationsnear the transitions to indicate updates. These can also be created and managed programmatically using the‘Stateflow.Annotation’object.

Additionally, transitions and states can behighlighted temporarilyusing thehighlightmethod provided by the Stateflow API. This method visually emphasizes the selected element in the Stateflow Editor by making it appear bolder than others. Please note that this highlighting is temporary and does not persist after the session ends.

Here is a sample code snippet demonstrating how to highlight a transition:

rt = sfroot; 
chart = rt.find('-isa','Stateflow.Chart','-and','Path', ‘Your_model_path’); 

transitions = chart.find('-isa','Stateflow.Transition'); 
transitions(1).highlight; 

States can be highlighted in a similar manner using the same method.

For more information, please refer to the documentation using the following commands in the MATLAB command line:

web(fullfile(docroot, " /stateflow/ref/sfroot.html ")); 
web(fullfile(docroot, "/matlab/ref/find.html ")); 
web(fullfile(docroot, "/stateflow/api/stateflow.state.highlight.html "));