Howtouse gui _sinmatlab

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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!