MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Guida Utente Scaricare il pdf (Pagina 617)

100

101

Examples: Program GUI C omponents

Program Axes

Axes components enable your GUI to display graphics, such as graphs and

images. This topic briefly tells you how to plot to an axes in your GUI.

In most cases, you create a plot in an axes from a callback that belongs to

some other compo ne nt in the GUI. For example, pressing a button might

trigger the plotting of a graph to an axes. In this case, the button’s

Callback

callback contains the code that generates the plot.

The follo wing example contains two axes and two push buttons. Clicking the

first button generates a

contour plot in one axes a nd clicking the other button

generates a

surf plot in the other axes. The example generates data for the

plots using the

peaks function, w hich returns a square matrix obtained by

translating and scaling Gaussian distributions.

1 Save this code in a f ile named two_axes.m.

function two_ax es

fh = figure;

bh1 = uicontrol(fh,'Position',[ 20 290 60 30],...

'String','Plot 1',...

'Callback',@button1_plot);

bh2 = uicontrol(fh,'Position',[ 20 100 60 30],...

'String','Plot 2',...

'Callback',@button2_plot);

ah1 = axes('Parent',fh,'units', 'pixels',...

'Position',[120 220 170 170]);

ah2 = axes('Parent',fh,'units', 'pixels',...

'Position',[120 30 170 170]);

%----------------------------------- -------------

function but ton1 _plot(hObject,eventdata )

contour(ah1,peaks(35));

end

%----------------------------------- -------------

function but ton2 _plot(hObject,eventdata )

surf(ah2,peaks(35));

end

12-31

1 2 ... 612 613 614 615 616 617 618 619 620 621 622 ... 758 759

Commenti su questo manuale

Nessun commento

MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Guida Utente Pagina 617

Commenti su questo manuale

Prodotti e manuali riguardandi Software MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE