Stateflow User's Guide

Using Functions to Extend Actions

A function in Stateflow is an extension of Stateflow actions. You define a program once in a function, but call it as many times as you need in Stateflow action language. This provides convenience and power to Stateflow action language.

Stateflow defines three types of functions: graphical, truth table, and embedded MATLAB. Truth tables are described in Truth Table Functions and embedded MATLAB functions are described in Using Embedded MATLAB Functions. This section describes graphical functions.

Learn how to create and use a functions in Stateflow diagrams in the following topics:

• Creating a Function -- Shows you how to create a graphical function and describes the significance of its location.
• Programming Functions -- Introduces you to the programming concepts for each type of function: graphical, truth table, and embedded MATLAB.
• Calling Functions in Stateflow -- Shows you where and how graphical functions are called.
• Exporting Functions -- Shows you how to share the graphical function of one Stateflow chart with all the charts in a model.
• Specifying Function Properties -- Shows you how to access and set properties for graphical functions.

What Nonsmart Transitions Do

Creating a Function

© 1994-2005 The MathWorks, Inc.