Create a plot of random data. Capture the axes and return the image data.getframecaptures the interior of the axes and the axes outline. It does not capture content that extends beyond the axes outline.

plot(rand(5)) F = getframe;

Fis a structure with the fieldcdatathat contains the captured image data.

Display the captured image data usingimshow.

无花果ure imshow(F.cdata)

Create a surface plot. Capture the interior of the figure window, excluding the menu and tool bars.

surf(peaks) F = getframe(gcf);

Fis a structure with the fieldcdatathat contains the captured image data.

Display the captured image data in a figure with a darker background usingimshow, so you can see captured area.

无花果ure('Color',[0.5 0.5 0.5]) imshow(F.cdata)

Create a plot of random data.

plot(rand(5))

Change the axes units to pixels and return the current axes position. The third and fourth elements of the position vector specify the axes width and height in pixels.

drawnow ax = gca; ax.Units ='pixels'; pos = ax.Position

pos = 73.8000 47.2000 434.0000 342.3000

Create a four-element vector,rect, that defines a rectangular area covering the axes plus the desired margin. The first two elements ofrectspecify the lower left corner of the rectangle relative to the lower left corner of the axes. The last two elements ofrectspecify the width and height of the rectangle. Reset the axes units to the default value of'normalized'.

marg = 30; rect = [-marg, -marg, pos(3)+2*marg, pos(4)+2*marg]; F = getframe(gca,rect); ax.Units ='normalized';

Display the captured image data in a figure with a darker background usingimshow, so you can see captured area.

无花果ure('Color',[0.5 0.5 0.5]) imshow(F.cdata)

Create a plot with a title and anx-axis label.

情节(兰德(5))包含('x values') title('Plot of Random Data')

Change the axes units to pixels and store thePositionandTightInsetproperty values for the axes. TheTighInsetproperty is a four-element vector of the form[left bottom right top]. The values are the margins used around the axes for the tick values and text labels.

drawnow ax = gca; ax.Units ='pixels'; pos = ax.Position; ti = ax.TightInset;

Create a four-element vector,rect, that defines a rectangular area covering the axes plus the automatically calculated margin. The first two elements ofrectspecify the lower left corner of the rectangle relative to the lower left corner of the axes. The last two elements ofrectspecify the width and height of the rectangle.

rect = [-ti(1), -ti(2), pos(3)+ti(1)+ti(3), pos(4)+ti(2)+ti(4)]; F = getframe(ax,rect);

Display the captured image data in a figure with a darker background usingimshow, so you can see captured area.

无花果ure('Color',[0.5 0.5 0.5]) imshow(F.cdata)

Starting in R2019b, you can display a tiling of plots using thetiledlayoutandnexttilefunctions. Call thetiledlayoutfunction to create a 2-by-1 tiled chart layout. Call thenexttilefunction to create the axes objectsax1andax2. Plot a line in each axes.

tiledlayout(2,1) ax1 = nexttile; plot(1:10,'b') ax2 = nexttile; plot(1:10,'r')

Capture the contents of the lower axes.getframecaptures the interior and border of the plot. It does not capture tick values or labels that extend beyond the outline of the plot.

F = getframe(ax2);

Display the captured image data usingimshow.

无花果ure imshow(F.cdata)

Record frames of thepeaksfunction vibrating by usinggetframein a loop. Preallocate an array to store the movie frames.

Z = peaks; surf(Z) axistightmanualax = gca; ax.NextPlot ='replaceChildren'; loops = 40; F(loops) = struct('cdata',[],'colormap',[]);forj = 1:loops X = sin(j*pi/10)*Z; surf(X,Z) drawnow F(j) = getframe(gcf);end

Playback the movie two times.

无花果= figure; movie(fig,F,2)