Stateflow.SimulinkBasedState

Simulink based state in chart, state, or box

Description

Use Stateflow.SimulinkBasedState objects to create Simulink^® subsystems within a Stateflow^® state. With Simulink based states, you can model hybrid dynamic systems or systems that switch between periodic and continuous time dynamics. For more information, see Simulink Subsystems as States.

Creation

Syntax

simulinkBasedState = Stateflow.SimulinkBasedState(parent)

Description

simulinkBasedState = Stateflow.SimulinkBasedState(parent) creates a Stateflow.SimulinkBasedState object in a parent chart, state, or box.

Input Arguments

parent — Parent for new Simulink based state

Stateflow.Chart object | Stateflow.State object | Stateflow.Box object

Parent for the new Simulink based state, specified as a Stateflow API object of one of these types:

• Stateflow.Box

• Stateflow.Chart

• Stateflow.State

Properties

Stateflow API objects have properties that correspond to the values you set in the Stateflow Editor. To access or modify a property, use dot notation. To access or modify multiple properties for multiple API objects, use the get and set functions, respectively. For more information, see Modify Properties and Call Functions of Stateflow Objects.

Content

Name — Name of Simulink based state

"" (default) | string scalar | character vector

Name of the Simulink based state, specified as a string scalar or character vector.

IsExplicitlyCommented — Whether to comment out Simulink based state

false or 0 (default) | true or 1

Whether to comment out the Simulink based state, specified as a numeric or logical 1 (true) or 0 (false). Setting this property to true is equivalent to right-clicking the Simulink based state and selecting Comment Out. For more information, see Comment Out Objects in a Stateflow Chart.

IsImplicitlyCommented — Whether Simulink based state is implicitly commented out

true or 1 | false or 0

This property is read-only.

Whether the Simulink based state is implicitly commented out, specified as a numeric or logical 1 (true) or 0 (false). The Simulink based state is implicitly commented out when you explicitly comment out an object that contains it. If the Simulink based state is contained in an atomic subchart, this property is false unless the explicitly commented object is also contained in the atomic subchart.

IsCommented — Whether Simulink based state is commented out

true or 1 | false or 0

Since R2023a

This property is read-only.

Whether the Simulink based state is commented out, specified as a numeric or logical 1 (true) or 0 (false). This property is true when either IsExplicitlyCommented or IsImplicitlyCommented is true.

CommentText — Comment text

"" (default) | string scalar | character vector

Comment text added to the Simulink based state, specified as a string scalar or character vector. This property applies only when the IsExplicitlyCommented property is true. In the Stateflow Editor, when you point to the comment badge on the Simulink based state, the text appears as a tooltip. When you set the IsExplicitlyCommented property to false, the value of CommentText reverts to "".

Graphical Appearance

Position — Position and size of Simulink based state

[0 0 90 60] (default) | [left top width height]

Position and size of the Simulink based state, specified as a four-element numeric vector of the form [left top width height].

BadIntersection — Whether Simulink based state intersects a box, state, or function

true or 1 | false or 0

This property is read-only.

Whether the Simulink based state graphically intersects a box, state, or function, specified as a numeric or logical 1 (true) or 0 (false).

ContentPreviewEnabled — Whether to display preview of Simulink based state contents

true or 1 (default) | false or 0

Whether to display a preview of the Simulink based state contents, specified as a numeric or logical 1 (true) or 0 (false).

ArrowSize — Size of incoming transition arrows

8 (default) | scalar

Size of incoming transition arrows, specified as a scalar.

FontSize — Font size for Simulink based state label

scalar

Font size for the Simulink based state label, specified as a scalar. The StateFont.Size property of the chart that contains the Simulink based state sets the initial value of this property.

State Decomposition

Type — Decomposition of sibling states

'AND' | 'OR'

This property is read-only.

Decomposition of sibling states, specified as 'AND' or 'OR'. The Simulink based state inherits this property from the Decomposition property of its parent state or chart.

ExecutionOrder — Execution order in parallel (AND) decomposition

scalar

Execution order for the Simulink based state in parallel (AND) decomposition, specified as an integer scalar. This property applies only when both of these conditions are satisfied:

• The Type property of the Simulink based state is "AND".

• The UserSpecifiedStateTransitionExecutionOrder property of the chart that contains the Simulink based state is true.

Active State Output

HasOutputData — Whether to create active state data output

false or 0 (default) | true or 1

Whether to create an active state data output port for the Simulink based state, specified as a numeric or logical 1 (true) or 0 (false). For more information, see Monitor State Activity Through Active State Data.

OutputData — Active state data object

Stateflow.Data object

This property is read-only.

Active state data object for the Simulink based state, specified as a Stateflow.Data object. This property applies only when the HasOutputData property for the Simulink based state is true.

OutputPortName — Name of active state data object

string scalar | character vector

Name of the active state data object for the Simulink based state, specified as a string scalar or character vector. This property applies only when the HasOutputData property for the Simulink based state is true.

OutputMonitoringMode — Monitoring mode for active state output

"SelfActivity"

Monitoring mode for the active state output data, specified as a string scalar or character vector. For Simulink based states, the only option is "SelfActivity".

Signal Logging and Test Point Monitoring

LoggingInfo — Signal logging properties

Stateflow.SigLoggingInfo object

Signal logging properties for the Simulink based state, specified as a Stateflow.SigLoggingInfo object with these properties:

• DataLogging — Whether to enable signal logging, specified as a numeric or logical 1 (true) or 0 (false).

• DecimateData — Whether to limit the amount of logged data, specified as a numeric or logical 1 (true) or 0 (false).

• Decimation — Decimation interval, specified as an integer scalar. This property applies only when the DecimateData property is true.

• LimitDataPoints — Whether to limit the number of data points to log, specified as a numeric or logical 1 (true) or 0 (false).

• MaxPoints — Maximum number of data points to log, specified as an integer scalar. This property applies only when the LimitDataPoints property is true.

• NameMode — Source of the signal name, specified as "SignalName" or "Custom".

• LoggingName — Custom signal name, specified as a string scalar or character vector. This property applies only when the NameMode property is "Custom".

Signal logging saves the self activity of the Simulink based state to the MATLAB^® workspace during simulation. For more information, see Log Simulation Output for States and Data.

Example: state.LoggingInfo.DataLogging = true;

TestPoint — Whether to set Simulink based state as test point

false or 0 (default) | true or 1

Whether to set the Simulink based state as a test point, specified as a numeric or logical 1 (true) or 0 (false). You can monitor testpoints with a floating scope during simulation. You can also log test point values to the MATLAB workspace. For more information, see Monitor Test Points in Stateflow Charts.

Debugging

Debug — Debugger properties

Stateflow.StateDebug object

Debugger properties for the Simulink based state, specified as a Stateflow.StateDebug object with these properties:

• OnEntry — Whether to set the On State Entry breakpoint, specified as a numeric or logical 1 (true) or 0 (false).

• OnDuring — Whether to set the During State breakpoint, specified as a numeric or logical 1 (true) or 0 (false).

• OnExit — Whether to set the On State Exit breakpoint, specified as a numeric or logical 1 (true) or 0 (false).

For more information, see Set Breakpoints to Debug Charts.

Example: simulinkBasedState.Debug.Breakpoints.OnEntry = true;

Example: simulinkBasedState.Debug.Breakpoints.OnDuring = true;

Example: simulinkBasedState.Debug.Breakpoints.OnExit = true;

Hierarchy

Chart — Chart that contains Simulink based state

Stateflow.Chart object

This property is read-only.

Chart that contains the Simulink based state, specified as a Stateflow.Chart object.

Subviewer — Subviewer for Simulink based state

Stateflow.Chart object | Stateflow.State object | Stateflow.Box object

This property is read-only.

Subviewer for the Simulink based state, specified as a Stateflow.Chart, Stateflow.State, or Stateflow.Box object. The subviewer is the chart or subchart where you can graphically view the Simulink based state.

Machine — Machine that contains Simulink based state

Stateflow.Machine object

This property is read-only.

Machine that contains the Simulink based state, specified as a Stateflow.Machine object.

Path — Location of parent in model hierarchy

character vector

This property is read-only.

Location of the parent of the Simulink based state in the model hierarchy, specified as a character vector.

Identification

Description — Description

"" (default) | string scalar | character vector

Description for the Simulink based state, specified as a string scalar or character vector.

Document — Document link

"" (default) | string scalar | character vector

Document link for the Simulink based state, specified as a string scalar or character vector.

Tag — User-defined tag

[] (default) | any data type

User-defined tag for the Simulink based state, specified as data of any type.

SSIdNumber — Session-independent identifier

scalar

This property is read-only.

Session-independent identifier, specified as an integer scalar. Use this property to distinguish the Simulink based state from other objects in the model.

Id — Unique identifier

scalar

This property is read-only.

Unique identifier, specified as an integer scalar. Unlike SSIdNumber, the value of this property is reassigned every time you start a new MATLAB session and may be recycled after an object is deleted.

Object Functions

getParent	Identify parent of object
getReferences	Identify references to symbol name
renameReferences	Rename symbol and update references to symbol name
commentedBy	Identify objects that implicitly comment out a graphical object
getMappingForSymbol	Get mapping for symbol in atomic subchart, atomic box, or Simulink based state
setMappingForSymbol	Set mapping for symbol in atomic subchart, atomic box, or Simulink based state
clearMappingForSymbol	Clear mapping for symbol in atomic subchart, atomic box, or Simulink based state
dialog	Open properties dialog box
view	Display object in editing environment
highlight	Highlight graphical object
fitToView	Zoom in on graphical object

Examples

Add Simulink Based State to Chart

Add a Simulink based state in the chart ch. Set its name to A.

simulinkBasedState = Stateflow.SimulinkBasedState(ch);
simulinkBasedState.Name = "A";

Map Variables in Simulink Based State

Since R2023a

In a Simulink based state called Locked, modify the mapping for the output we.

Open the model sf_clutch.slx.

open_system("sf_clutch.slx")

Access the Stateflow.SimulinkBasedState object for the Simulink based state Locked.

subsystem = find(sfroot,"-isa","Stateflow.SimulinkBasedState",  ...
    Name="Locked");

Check the mapping for Simulink based state output we.

getMappingForSymbol(subsystem,"we").Name

ans = 
'we'

Map the Simulink based state output we to chart output wv.

setMappingForSymbol(subsystem,"we","wv")
getMappingForSymbol(subsystem,"we").Name

ans = 
'wv'

Clear the mapping for Simulink based state output we.

clearMappingForSymbol(subsystem,"we")
getMappingForSymbol(subsystem,"we").Name

ans = 
'we'

Version History

Introduced in R2017b

R2023a: New object functions and properties

Stateflow.SimulinkBasedState objects have new object functions and properties:

• The object function setMappingForSymbol maps a Simulink based state symbol to a main chart symbol.

• The object function clearMappingForSymbol clears the mapping for a Simulink based state symbol.

• The object function getMappingForSymbol returns the main chart symbol that a Simulink based state symbol maps to.

• The object function getReferences returns the locations where a chart refers to the name of a Simulink based state.

• The object function renameReferences renames a Simulink based state and updates all references to the name of the Simulink based state in the chart.

• The object function commentedBy identifies the explicitly commented objects that cause a Simulink based state to be commented out.

• The property IsCommented indicates whether a Simulink based state is commented out. This property replaces the object function isCommented.