matlab app designer axes buttondownfcn

The ButtonDownFcn property in MATLAB App Designer allows you to specify a callback function that executes when a user clicks on an axes object. Here's an example of how you can use it:

function app = MyApp
    % Create the app
    app = matlab.apps.AppBase;

    % Create the axes
    app.UIAxes = uiaxes(app);

    % Set the ButtonDownFcn property
    app.UIAxes.ButtonDownFcn = @axesClicked;

    % Callback function for when the axes is clicked
    function axesClicked(src, event)
        disp('Axes clicked!');
        disp(src);
        disp(event);
    end
end

In this example, the ButtonDownFcn property of the UIAxes object is set to the axesClicked function. When the user clicks on the axes, the axesClicked function is executed. The function displays a message indicating that the axes was clicked, as well as information about the source and event objects.

Please let me know if you need any further assistance!