Create Default Transition Objects

Default transitions differ from normal transitions in not having a source object. You can create a default transition with these steps:

  1. Create a transition.

  2. Attach the destination end of the transition to an object.

  3. Position the source endpoint for the transition.

If you assume that the variable sA is a handle to state A, these commands create a default transition and position the source 25 pixels above and 15 pixels to the left of the top midpoint of state A:

dt = Stateflow.Transition(sA);
dt.Destination = sA;
dt.DestinationOClock = 0;
xsource = sA.Position(1)+sA.Position(3)/2;
ysource = sA.Position(2)-30;
dt.SourceEndPoint = [xsource ysource];
dt.MidPoint = [xsource ysource+15];

The created default transition looks like this:

Stateflow chart with a default transition leading to a state.

This method is also used for adding the default transitions toward the end of the example chart constructed in Create Charts by Using the Stateflow API.

Related Topics

Stateflow Documentation

Support