This can be done using the GETFRAME and IMWRITE functions, as illustrated in the following example.
Although this technique may be most useful when working with images, this example will plot a simple line and a legend to illustrate the fact that this technique is a true screen capture of the axes.
1. Create the following line and insert a legend in the plot.
plot(1:10)
legend('text')
2. Now grab the contents of the current axes using GETFRAME
f=getframe(gca)
The structure, f, contains two fields: "cdata", and "colormap". In this case, "colormap" is empty because "cdata" is not an indexed image.
3. Use IMWRITE to write the contents of "cdata" to a bitmap image.
imwrite(f.cdata,'img.bmp','bmp');
