How to display figure in full-screen mode programmatically and save as a high resolution image?

I need to save a figure in fullscreen mode and also save it as high resolution image. I have used following commands, but still can't achive the requirement.

FigH = figure('Position', get(0, 'Screensize'));
trisurf(tri(:,2:4),x,y,J)              
axis equal 
view(0,90);shading interp;               
colormap(jet);
colorbar;
caxis([0 max(max_J)]);

print(FigH,'J.png','-dpng','-r300')
savefig(FigH,'J.fig')

Also modified with the following command, but didn't satisfy the required level of resolution.

F    = getframe(FigH);
imwrite(F.cdata, 'J.tiff', 'TIFF','Resolution',[1360 768]);

Can anyone help me to solve this issue?

Thank you.

Answer 1

[Bjorn Gustavsson]

To save as high-resolution, I regularly use:

print('-depsc2','-painters','J.eps')

If you desperately want the image as a png-image at full resolution you can always go to the File->Pint Preview menu and set the print preference to print to actual screen-size.

HTH