Stateflow and Stateflow Coder Release Notes

Chapter 2
Stateflow 4.1 and Stateflow Coder 4.1 Release Notes

New Features

This section introduces new features and enhancements added in Stateflow 4.1 and Stateflow Coder 4.1 (Release 12.1) since the Web-downloadable release of Stateflow 4.0.2 (Release 12).

For information about the features of Stateflow 4.1 added since the release of Stateflow 4.0 (Release 12) and prior versions, see New Features or the "What's New" link from the Stateflow product page at www.mathworks.com.

Stateflow New Features

Smart Transitions

Stateflow charts now include the graphical innovation of smart transitions whose ends slide around the surfaces of states and junctions. When the source and/or destination objects are moved and resized in the Stateflow chart, these transitions use sliding and other behaviors to enable users to produce an aesthetically pleasing diagram.

This feature is fully documented in Setting Smart Behavior in Transitions in the Stateflow documentation and Stateflow online help.

Note    Transitions are automatically created with smart behavior on the assumption that this behavior is almost always desirable. However, self-loop transitions, must be created without smart transition behavior. See the section Creating Self-Loop Transitions in online Help for instructions.

Search & Replace Tool Enhancements

The Stateflow Search & Replace tool has been modified with the following enhancements:

• Regular expression tokenized replacements

• Allows you to dynamically choose replacement text based on matched text.

• Case insensitivity/case preservation

• Replaces text with different sensitivities to the use of upper or lower case characters in the found text.

• Addition of a Search in: field

• Now you can select any Stateflow chart in your Simulink model or select the entire Stateflow machine.

These enhancements are fully documented in Searching and Replacing in Charts in the Stateflow documentation and Stateflow online help.

Stateflow Chart Notes

You can now enter annotations to your Stateflow charts that are similar to annotations in Simulink.

This feature is introduced in Stateflow 4.1 and is fully documented in Entering Chart Notes in the Stateflow documentation and Stateflow online help.

Model Coverage Tool

The Simulink Model Coverage tool has been modified to perform model coverage calculations for decisions and conditions of decision in the Stateflow machine and its charts, states, and transitions. This includes Condition and MCDC coverage.

This enhancement is introduced in Stateflow 4.1 and is fully documented in Stateflow Chart Model Coveragein the Stateflow documentation and Stateflow online help.

Compound Assignment Operators with Fixed-Point Data Can Produce Incorrect Results

Stateflow Coder New Features