Plot resolution and size

Question

Adam Cervenka 2018-8-23

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https://ww2.mathworks.cn/matlabcentral/answers/415952-plot-resolution-and-size

评论： Youran Li 2021-6-20

Hello,

I need to save my plot - extended in one direction (width) and in 8K resolution. How can I do that? I have only this

But it is unreable. What should I do now?

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Adam Cervenka 2018-8-23

Do not work with subplot.

Claudio Iturra 2018-8-26

编辑：Claudio Iturra 2018-8-27

Hello, I had a similar problem some time ago, The solution for me was saving the figure in EPS format, and then with illustrator force the resolution that I needed.

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Answer 1

Robert U 2018-8-27

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Hello Adam Cervenka,

since Matlab is saving figures according to "PaperPosition", "PaperPositionMode" and "resolution", these values have to be adjusted accordingly to produce figures with specific pixel-sizes:

 close all;
 clear
 % create some random data
 Data = rand(20,100);
 % open figure and plot results into subfigures
 fh = figure;
 for ik = 1:size(Data,1)
    sh(ik) = subplot(4,5,ik,'Parent',fh);
    ph(ik) = plot(sh(ik),1:size(Data,2),Data(ik,:));
    sh(ik).Title.String = sprintf('Longer Title No. %d',ik);
 end
 % set all units inside figure to normalized so that everything is scaling accordingly
 set(findall(fh,'Units','pixels'),'Units','normalized');
 % do not show figure on screen
 set(fh, 'visible', 'off')
 % set figure units to pixels & adjust figure size
 fh.Units = 'pixels';
 fh.OuterPosition = [0 0 7680 4320];
 % define resolution figure to be saved in dpi
 res = 420;
 % recalculate figure size to be saved
 set(fh,'PaperPositionMode','manual')
 fh.PaperUnits = 'inches';
 fh.PaperPosition = [0 0 7680 4320]/res;
 % save figure
 print(fh,'TestFigure','-dpng',sprintf('-r%d',res))

Kind regards,

Robert

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Youran Li 2021-6-20

Hi This is very useful! I tried to make an animation by stacking all the figures. Matlab somehow made the pixel length and width slightly different though I use the same code to make the figures. Your method works out in forcing the pixel length and width. Thanks!

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