MATLAB Central Newsreader - figure size in pixels?

figure size in pixels?

David Doria — Sat, 19 Apr 2008 14:32:02 -0400

I want to save a figure to a file with a particular size in
pixels. I do this:

figure('units','pixels','outerposition',[0 0 800 450]);
set(gcf,'PaperPositionMode','auto');
print('-djpeg', filename);

but the resulting file is 1237x575!!

What have I done wrong?

Thanks,

Dave

Re: figure size in pixels?

French Caro — Sat, 19 Apr 2008 14:49:02 -0400

"David Doria" <daviddoria@gmail.com> wrote in message
<fucvp1$4rl$1@fred.mathworks.com>...
> I want to save a figure to a file with a particular size in
> pixels. I do this:
>
> figure('units','pixels','outerposition',[0 0 800 450]);
> set(gcf,'PaperPositionMode','auto');
> print('-djpeg', filename);
>
> but the resulting file is 1237x575!!
>
> What have I done wrong?
>
> Thanks,
>
> Dave
HI
I think you should use Position property no Outerposition
(which is an axes property at least, I can't find it in
figure properties)

Re: figure size in pixels?

David Doria — Sat, 19 Apr 2008 15:30:05 -0400

figure('units','pixels','Position',[100 100 800 450]);
%[left bottom width height]

%subplot position is relative to the figure and hence
doesn't change anything about the previous command, correct?
LeftPlot = subplot('Position', [0 .1 .5 .8]); %[left bottom
width height]

set(gcf,'PaperPositionMode','auto');
print('-djpeg', filename);

the files produced are now 1249x704!! what the heck??

Thanks,

Dave

Re: figure size in pixels?

David Doria — Sat, 19 Apr 2008 16:38:02 -0400

Turns out there is an m file on the file exchange called

saveSameSize.m that does exactly what I needed.

If anyone still has a simple explanation of why it didn't
work the way I did it I'll still take it haha!

Re: figure size in pixels?

Joaquim Luis — Sat, 19 Apr 2008 17:24:02 -0400

"David Doria" <daviddoria@gmail.com> wrote in message
<fud75a$onq$1@fred.mathworks.com>...
> Turns out there is an m file on the file exchange called
>
> saveSameSize.m that does exactly what I needed.
>
> If anyone still has a simple explanation of why it didn't
> work the way I did it I'll still take it haha!

Maybe you want to read the comments inside my imcapture.m
which likely would have done the job as well.

http://www.mathworks.com/matlabcentral/fileexchange/
loadFile.do?objectId=13355&objectType=FILE

J. Luis

Re: figure size in pixels?

Dan Haeg — Sun, 20 Apr 2008 17:22:01 -0400

"Joaquim Luis" <jluis@--ualg--.pt> wrote in message
<fud9ri$d1h$1@fred.mathworks.com>...
> "David Doria" <daviddoria@gmail.com> wrote in message
> <fud75a$onq$1@fred.mathworks.com>...
> > Turns out there is an m file on the file exchange called
> >
> > saveSameSize.m that does exactly what I needed.
> >
> > If anyone still has a simple explanation of why it didn't
> > work the way I did it I'll still take it haha!
>
> Maybe you want to read the comments inside my imcapture.m
> which likely would have done the job as well.
>
> http://www.mathworks.com/matlabcentral/fileexchange/
> loadFile.do?objectId=13355&objectType=FILE
>
> J. Luis

Joaquim,
I think your program will help me also. Unfortunately I get
the following error when trying to run your example:

??? Error using ==> imcapture at 191
Error using ==> hardcopy
Unknown device 'none' for hardcopy.

Do you have any idea how to fix it? I am using r2007A on
windows.

Dan