Simulink.io.ModelWorkspace Class

Namespace: Simulink.io

Read data in format used by model workspace

Since R2021b

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Description

Simulink.io.ModelWorkspace inherits from the Simulink.io.FileType base class. It reads data formatted in a format used by the model workspace. Use model workspace file types to move data to and from the model workspace to a function, an automated process, or a user interface. To import data from the model workspace, use this command.

classdef ModelWorkspace < Simulink.io.FileType

The Simulink.io.ModelWorkspace class is a handle class.

Class Attributes

Abstract
false
HandleCompatible
true

For information on class attributes, see Class Attributes.

Properties

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Source for initializing the variables in the model workspace, specified as one of these character vectors:

  • 'Model File' — The variables are stored in the model file. When you save the model, you also save the variables.

  • 'MATLAB Code' — The variables are created by MATLAB® code that you write and store in the model file.

  • 'MAT-File' — The variables are stored in a MAT-file, which you can manage and manipulate separately from the model file.

  • 'MATLAB File' — The variables are created by MATLAB code in a script file, which you can manage and manipulate separately from the model file.

Attributes:

GetAccess
public
SetAccess
public

Data Types: char | string

Name of the external file that stores or creates variables, specified as a character vector. To enable this property, set DataSource to 'MAT-File' or 'MATLAB File'.

Attributes:

GetAccess
public
SetAccess
public

Data Types: char | string

MATLAB code for initializing variables, specified as a character vector. To enable this property, set DataSource to 'MATLAB Code'.

Attributes:

GetAccess
public
SetAccess
public

Data Types: char | string

Methods

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Examples

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Set up myExample to use with the model workspace and perform basic operations.

Set up the model workspace for the myExample. Assign timeseries([1;3]) as the value of aSignal.

myExample;
        
 mWS = get_param('myExample','ModelWorkspace');
 assignin( mWS, 'aSignal', timeseries([1;3]));

Determine the contents of the MAT-file aFileType associated with the Simulink.io.ModelWorkspace object.

aFileType = Simulink.io.ModelWorkspace( 'myExample.slx' );

%whos on file
out = whos( aFileType )

out = 

  struct with fields:

    name: 'aSignal'
    type: 'Signal'

Load signal names from the aFileType of the myExample model workspace.

aFileType = Simulink.io.ModelWorkspace( 'myExample.slx' );
%load
out = load( aFileType )

out = 

  struct with fields:

    aSignal: [1×1 timeseries]
aFileType = Simulink.io.ModelWorkspace( 'myExample.slx' );
%import all
out = import( aFileType )

out = 

  struct with fields:

     Data: {[1×1 timeseries]}
    Names: {'aSignal'}

out = 

  struct with fields:

     Data: {[1×1 timeseries]}
    Names: {'aSignal'}

Import the specified variable aSignal from the model workspace.

aFileType = Simulink.io.ModelWorkspace( 'myExample.slx' );
var = importAVariable( aFileType, 'aSignal')
timeseries

  Common Properties:
            Name: 'unnamed'
            Time: [2x1 double]
        TimeInfo: [1x1 tsdata.timemetadata]
            Data: [2x1 double]
        DataInfo: [1x1 tsdata.datametadata]

  More properties, Methods

Write a structure of signals to a MAT-file.

ts = timeseries([11112;36532415]);
aFileType = Simulink.io.ModelWorkspace('minportsOnly_withOutputs.slx');
[didWrite, errMsg ] = export(...
                          aFileType,'minportsOnly_withOutputs.slx',...
                           {'ts'},{ts},false)

didWrite =

  logical

   1

errMsg =

  0×0 empty char array

Version History

Introduced in R2021b

See Also

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