MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Manuale Utente Scaricare il pdf (Pagina 86)

5 Preferences and Options

5-10

• Non-resizable — Users cannot change the window size (default).

•

Proportional — MATLAB automatically rescales the components in the

GUI in proportion to the new figure window size.

•

Other (Use ResizeFcn) — Program the GUI to behave in a certain way

when users resize the figure window.

The first two approaches simply set properties appropriately and require no

other action.

Other (Use ResizeFcn) requires you to write a callback routine

that recalculates sizes and positions of the components based on the new figure

size.

Command-Line Accessibility

You can restrict access to a GUI figure from the command line by using the

GUIDE

Command-line accessibility options.

Many commands, such as

plot, alter the current figure, i.e., the figure specified

by the root

CurrentFigure property. The current figure is usually the figure

that is most recently created or clicked in. However, a figure can also become

the current figure with the statement

figure(h)

or by setting the CurrentFigure property to the figure’s handle.

For a GUI created in GUIDE set the

Command-line accessibility options to

prevent users from inadvertently changing the appearance of a GUI by

entering commands at the command line, such as

plot, that alter the current

figure.

The following table briefly describes the four options for

Command-line

accessibility

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MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Manuale Utente Pagina 86