MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Manual do Utilizador descarregar pdf (Página 299)

100

101

GUI with Axes, Menu, and Toolbar

12-21

if strcmp(selection,'No')

return;

end

delete(hMainFigure);

end

The hCloseMenuitemCallback function calls the questdlg function to create

and open the question dialog box shown in the following figure.

If the user clicks the

No button, the callback returns. If the user clicks the Yes

button, the callback deletes the GUI.

See “Helper Function: Plotting the Plot Types” on page 12-21 for a description

of the

localUpdatePlot function.

Helper Function: Plotting the Plot Types

The example defines the localUpdatePlot function at the same level as the

callback functions. Because of this,

localUpdatePlot has access to the same

data and component handles.

function localUpdatePlot

% Helper function for plotting the selected plot type

mPlotTypes{get(hPlotsPopupmenu, 'Value'), 2}(hPlotAxes);

end

The localUpdatePlot function uses the pop-up menu Value property to

identify the selected menu item from the first column of the

mPlotTypes 5-by-2

cell array, then calls the corresponding anonymous function from column two

of the cell array to create the plot in the axes.

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