Stateflow User's Guide

Executing a Transition

Transitions play a large role in defining the animation or execution of a system. If your chart has exclusive (OR) states, its execution begins with the default transitions that point to the first active states in your chart.

Transitions have sources and destinations; thus, any actions associated with the sources or destinations are related to the transition that joins them. The type of the source and destination is equally important to define the semantics.

See the following topics:

• Transition Flow Graph Types -- Defines the groups used for ordering transitions in order to select a valid transition for execution.

• Outgoing transitions from an active state are first grouped according to their flow graph type.

• Executing a Set of Flow Graphs -- Describes the process of selecting a valid transition from a group.

• The transitions in each flow graph group are checked for a valid, executable transition, starting with the highest priority group, and ending with the lowest priority group, until a valid transition is found.

• Transition Testing Order -- Describes the process through which transitions with the same source are ordered before selecting a valid transition for execution.

Executing a Chart

Transition Flow Graph Types

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