Stateflow User's Guide

Using Boxes in Stateflow

Once you create a box you can use it in one of the following ways:

• You can move or draw objects inside of a box to organize your diagram.

• You can draw the box first as a state around the objects you want inside it and then convert it to a box.

• You can add data to a box so that all the elements in the box can share the same data.
• You can group a box and its contents into a single graphical element .

• See Grouping States.

• You subchart a box to hide its elements.

• See Using Subcharts to Extend Charts for more information.

For the most part, boxes do not contribute to the semantics of a Stateflow diagram. They do, however, affect the activation order of a diagram's parallel states. A box wakes up before any parallel states or boxes that are lower or to the right of it in a Stateflow diagram. Within a box, parallel states still wake up in top-down, left to right order.

Changing a State to a Box

Using Notes to Extend Chart Diagrams

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