Stateflow

Labeling Transitions

The ? character is the default empty label for transitions. Transitions and default transitions follow the same labeling format. Select the transition to display the ? character. Click on the ? to edit the label.

Transition labels have this general format.

event [condition]{condition_action}/transition_action

Specify, as appropriate, relevant names for event, condition, condition_action, and transition_action. Transitions do not have to have labels. You can specify some, all, or none of the parts of the label.

Label Field	Description
event	Event that causes the transition to be evaluated.
condition	Defines what, if anything, has to be true for the condition action and transition to take place.
condition_action	If the condition is true, the action specified executes and completes.
transition_action	After a valid destination is found and the transition is taken, this action executes and completes.

To apply and exit the edit, deselect the object.

See these sections in Chapter 7, Notations for more information:

• Transitions
• Action Language

Editing Transition Attach Points

Valid Labels