MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Uživatelský manuál stáhnout pdf (Strana 116)

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101

6 Lay Out a UI Using GUIDE

6-30

To display the & character in a label, use two & characters in the string. The words

remove, default, and factory (case sensitive) are reserved. To use one of these as a

label, prepend a backslash (\) to the string. For example, \remove yields remove.

The radio button accommodates only a single line of text. If you specify more than

one line, only the first line is shown. If you create a radio button that is too narrow to

accommodate the specified String, MATLAB software truncates the string with an

ellipsis.

• Create the radio button with the button selected by setting its Value property to the

value of its Max property (default is 1). Set Value to Min (default is 0) to leave the

radio button unselected. Correspondingly, when the user selects the radio button, the

software sets Value to Max, and to Min when the user deselects it.

• If you want to set the position or size of the component to an exact value, then modify

its Position property. See “Locate and Move Components” on page 6-74 and

“Resize GUIDE UI Components” on page 6-67 for details.

• To add an image to a radio button, assign the button's CData property an m-

by-n-by-3 array of RGB values that defines a truecolor image. You must do this

programmatically in the opening function of the UI code file. For example, the array

img defines a 16-by-24-by-3 truecolor image using random values between 0 and 1

(generated by rand).

img = rand(16,24,3);

set(handles.radiobutton1,'CData',img);

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