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Running the Completed GUI

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The Final Code File Running the GUI

The Final Code File

This is what your code file should now look like:

function simple_gui2
% SIMPLE_GUI2 Select a data set from the pop-up menu, then
% click one of the plot-type push buttons. Clicking the button
% plots the selected data in the axes.
 
   %  Create and then hide the GUI as it is being constructed.
   f = figure('Visible','off','Position',[360,500,450,285]);
 
   %  Construct the components.
   hsurf = uicontrol('Style','pushbutton','String','Surf',...
          'Position',[315,220,70,25],...
          'Callback',{@surfbutton_Callback});
   hmesh = uicontrol('Style','pushbutton','String','Mesh',...
          'Position',[315,180,70,25],...
          'Callback',{@meshbutton_Callback});
   hcontour = uicontrol('Style','pushbutton',...
          'String','Countour',...
          'Position',[315,135,70,25],...
          'Callback',{@contourbutton_Callback}); 
   htext = uicontrol('Style','text','String','Select Data',...
          'Position',[325,90,60,15]);
   hpopup = uicontrol('Style','popupmenu',...
          'String',{'Peaks','Membrane','Sinc'},...
          'Position',[300,50,100,25],...
          'Callback',{@popup_menu_Callback});
   ha = axes('Units','Pixels','Position',[50,60,200,185]); 
   align([hsurf,hmesh,hcontour,htext,hpopup],'Center','None');
   
   % Create the data to plot.
   peaks_data = peaks(35);
   membrane_data = membrane;
   [x,y] = meshgrid(-8:.5:8);
   r = sqrt(x.^2+y.^2) + eps;
   sinc_data = sin(r)./r;
   
   % Initialize the GUI.
   % Change units to normalized so components resize 
   % automatically.
   set([f,ha,hsurf,hmesh,hcontour,htext,hpopup],...
   'Units','normalized');
   %Create a plot in the axes.
   current_data = peaks_data;
   surf(current_data);
   % Assign the GUI a name to appear in the window title.
   set(f,'Name','Simple GUI')
   % Move the GUI to the center of the screen.
   movegui(f,'center')
   % Make the GUI visible.
   set(f,'Visible','on');
 
   %  Callbacks for simple_gui2. These callbacks automatically
   %  have access to component handles and initialized data 
   %  because they are nested at a lower level.
 
   %  Pop-up menu callback. Read the pop-up menu Value property
   %  to determine which item is currently displayed and make it
   %  the current data.
      function popup_menu_Callback(source,eventdata) 
         % Determine the selected data set.
         str = get(source, 'String');
         val = get(source,'Value');
         % Set current data to the selected data set.
         switch str{val};
         case 'Peaks' % User selects Peaks.
            current_data = peaks_data;
         case 'Membrane' % User selects Membrane.
            current_data = membrane_data;
         case 'Sinc' % User selects Sinc.
            current_data = sinc_data;
         end
      end
  
   % Push button callbacks. Each callback plots current_data in
   % the specified plot type.
 
   function surfbutton_Callback(source,eventdata) 
   % Display surf plot of the currently selected data.
      surf(current_data);
   end
 
   function meshbutton_Callback(source,eventdata) 
   % Display mesh plot of the currently selected data.
      mesh(current_data);
   end
 
   function contourbutton_Callback(source,eventdata) 
   % Display contour plot of the currently selected data.
      contour(current_data);
   end 
 
end 

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Running the GUI

1. Run the GUI by typing the name of the code file at the command line.

   simple_gui2

   

2. In the pop-up menu, select Membrane, and then click the Mesh button. The GUI displays a mesh plot of the MATLAB logo.

   

3. Try other combinations before closing the GUI.

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Programming the GUI

Creating GUIs with GUIDE

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