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Name to display as block icon


icon = getIconImpl(obj)


icon = getIconImpl(obj) specifies the text or image to display on the block icon of the MATLAB System block. If you do not specify the getIconImpl method, the block displays the class name of the System object™ as the block icon. For example, if you specify pkg.MyObject in the MATLAB System block, the default icon is labeled MyObject

Run-Time Details

getIconImpl is called by the MATLAB System block during Simulink® model compilation.

Method Authoring Tips

You must set Access = protected for this method.

Input Arguments

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System object handle used to access properties, states, and methods specific to the object. If your getIconImpl method does not use the object, you can replace this input with ~.

Output Arguments

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The text or image to display as the block icon. Each cell is displayed as a separate line.


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Specify in your class definition file the name of the block icon as 'Enhanced Counter' using two lines.

methods (Access = protected)
   function icon = getIconImpl(~)
      icon = {'Enhanced','Counter'};

Define an image in your class definition file.

    methods(Access = protected)
        function icon = getIconImpl(~)
            % Define icon for System block
            icon = matlab.system.display.Icon('my_icon.png');

The image now appears on the System block icon.

Version History

Introduced in R2017a