How to save scope to an image file without using plot?

Question

This condition is very important, because plot stretches my graph in an unacceptable manner.

Answer 1

As the answer of gnovice is outdated (at least since R2013), and the new builtin function is rather inconvenient to use, I'd like to suggest my little script.

set(0,'ShowHiddenHandles','On')
set(gcf,'Units','centimeters','PaperUnits','centimeters')
pos = get(gcf,'Position');
set(gcf,'PaperPosition',[0 0 pos(3) pos(4)],'Papersize',[ pos(3),pos(4) ]);
set(gcf,'InvertHardcopy','off','Renderer','painters')
saveas(gcf,'scope.pdf')

Which gives you a vector graphic in exactly the same size and look, like the last opened scope window. Of course you can modify additional properties and also print it as jpeg with a certain resolution. But then you should rather use print:

...
set(gcf,'Renderer','zbuffer')
print(gcf,'scope.jpg','-djpeg','-r600')

results into a 600dpi Jpeg file. The units doesn't really matter, as long as they are consistent between figure and paper.