Transcript Introduction to Matlab & Data Analysis 2015 In this tutorial we will: • Build a practical application using GUIDE • Learn more about.

Introduction to Matlab & Data Analysis 2015
In this tutorial we will:
• Build a practical application using GUIDE
• Learn more about graphical user interface components
• Practice building callback functions that display data and manipulate
the GUI
• This will be a step-by-step design procedure
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GUIDE Tutorial
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Open a blank template in GUIDE
Open the Preferences dialog and toggle the “Show names” option
GUIDE Tutorial
3. Add a push button
4. Duplicate this button 2 times to create 3 buttons
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GUIDE Tutorial
5. Add a panel to contain our buttons. Move the buttons on to the panel.
6. Add an axis for the surface plot
Adjust the window size by
moving this corner
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GUIDE Tutorial
7. You can align and distribute components
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GUIDE Tutorial
8. Open the Properties Inspector of each push button and change the String and
the Tag
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GUIDE Tutorial
9. Using the Properties Inspector, edit the options string for the pop-up menu
10. At this point you can activate the GUI , this will generate an *.m file and a
*.fig file
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GUIDE Tutorial
11. We will now go to the opening function which is called when the GUI starts
* To share data between the GUI objects we use the handles structure which is
passed between functions
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GUIDE Tutorial
12. Here we will define three datasets and create and initial plot
* To share data between the GUI objects we use the handles structure which is
passed between functions
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GUIDE Tutorial
13. Now we will edit the callback functions of the pushbuttons to update the
2D plotting method
handles.current_data
stores our current dataset
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GUIDE Tutorial
14. And finally we need to update the callback of the pop-up menu to update
the right dataset
Don’t forget to
update the handles
structure using the
function guidata()
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GUIDE Tutorial
15. Now your GUI should be fully functional. You can activate it from the editor,
layout editor or the command line
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GUIDE Tutorial
1. Create a new GUI layout called ‘slider’ . This GUI will slide to the right
MRI slice
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GUIDE Tutorial
2. In the opening function, load the MRI data and display the first slice
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GUIDE Tutorial
3. In the slider callback function we shall calculate the requested frame
number and display it
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GUIDE Tutorial
4. Try to slide through the axial slices of the dataset
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GUIDE Tutorial
5. Now let’s display the current slice number in the static text
set(handles.frame_num,'string',num2str(handles.current_frame));
guidata(hObject, handles);
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GUIDE Tutorial