To create GUIs in MATLAB, one can use the Graphical User Interface Development Environment (GUIDE) tool. GUIDE allows users to drag and drop GUI components like buttons and sliders. It generates code to control the GUI. Key aspects of GUIs include components, figures to contain components, and callback functions that specify what happens when a component is selected. Well-designed GUIs help users know where they are and where to go next within the program.

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How to create GUI's inHow to create GUI's in
MatLABMatLAB
Rigo Dicochea

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IntroductionIntroduction
 Graphical User Interface (GUI)
 MatLab provides Graphical User Interface
Development Environment(GUIDE)
 A MatLab tool used to create GUI’s
 Decide between using GUIDE or writing the
code from scratch
 GUI’s give the user a simplified experience
running a program
 Associates a “function(s)” with components of
the GUI

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Graphical User InterfaceGraphical User Interface
 GUI should be consistent and easily understood.
 Provide the user with the ability to use a program
without having to worry about commands to run
the actual program
 Possible components of a GUI
– Pushbuttons
– Sliders
– List boxes
– Menus….etc
Sample GUI

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3 Essential Characteristics3 Essential Characteristics
 Components –
– Graphical Components
 pushbuttons, edit boxes, sliders, labels, menus, etc…
– Static Components
 Frames, text strings,…
– Both are created using the function uicontrol
 Figures – components are contained in figures
 Callbacks – The functions which perform the
required action when a component is pushed

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GUIDE PropertiesGUIDE Properties
 Allows the user to drag and drop components
that he/she wants in the “layout” area of the GUI
 All “guide” GUI’s start with an opening function
– Callback is performed before user has access to GUI
 Saving automatically generates an .m file and .fig
file
 .fig contains the binary GUI layout and .m
contains the code that controls the GUI

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Assessing the Value of Your GUIAssessing the Value of Your GUI
 Ask yourself two basic questions when designing
your GUI.
– Do the users always know where they are?
– Do they always know where to go next?
 Constantly answering these two questions will
help you keep in perspective the goal of your
GUI.

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Callback EditorCallback Editor
The “meat” of the GUI process
Opening function is first callback in every
“guide” generated GUI
Usually used to generate data used in GUI
Callbacks define what will happen when a
figure component is selected
Must write CODE!!!!

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GUI EXAMPLEGUI EXAMPLE
 Utilize functions
– Surf, Mesh, Contour
 Types of plots performed on data in example
– Peaks
 peaks is a function of two variables, obtained by translating
and scaling Gaussian distributions
– Membrane
– Sinc
 sinc computes the sinc function of an input vector or array,
where the sinc function is

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SummarySummary
 At command prompt type “guide”
 After laying out your GUI in the layour editor
 Define data in Opening Function
 Edit/Align your components using
– Tools Menu
 Align
– View menu
 Property Inspector
 Write the Callbacks
– This is the most difficult aspect when creating GUI’s

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Where to Get More InformationWhere to Get More Information
 http://www.mathworks.com/products/matlab/
 www.google.com
 http://www.mathworks.com/access/helpdesk/help/techdo
 http://www.mathworks.com/matlabcentral/fileexchange/
 http://www.mathworks.com/access/helpdesk/hel
p/techdoc/creating_guis/creating_guis.html?
BB=1
 Daniel Keller – thanks for taking time to help!