How to publish text and pictures in a loop

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I want to make a simple catalog over screen clips, which I captured with the Windows 7 Snipping Tool. That's simple with a for-loop, I thought. That would output text, picture, text, picture, etc. However, the script below produces a block of text followed by the pictures. (R2012a).
Next, I included the text in the figure with the function, title. However, I have set a max width as an publish option. In many cases that made the text unreadable small.
Using the errordlg to show the text is not attractive.
Have I missed an option in publish?
Is there a simple work around?
%%Snipping Tool clips
file_spec = fullfile( folder_spec, '*.png' );
sad = transpose( dir( file_spec ) );
for sa = sad
fprintf( '%s | %8u | %s\n', datestr(sa.datenum,31), sa.bytes, sa.name )
... create a figure with an axes
pic = imread( fullfile( folder_spec, sa.name ), 'png' );
imagesc( pic )
end

Accepted Answer

Sean de Wolski
Sean de Wolski on 29 Jul 2013
is a code secton break. You can find more information on it here:
You may also be interested in snapnow() to force publish to take a snapshot.
doc snapnow
  1 Comment
jfaulhab
jfaulhab on 13 Dec 2018
Is there also a way to publish picture, text, picture, text... inside a loop? Normally with snapnow, the figure is placed at the bottom of the section. Any idea how to accomplish this?
Many thanks in advance!

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More Answers (1)

per isakson
per isakson on 8 Jul 2012
Edited: per isakson on 8 Aug 2013
I've found the answer, which raises a new question. How come I missed the importance the position of "%%" relative to the loop?
A "%%" need to be inside the loop to "flush the output buffer". The code below does it.
%%Snipping Tool clips
file_spec = fullfile( folder_spec, '*.png' );
sad = transpose( dir( file_spec ) );
for sa = sad
fprintf( '%s | %8u | %s\n', datestr(sa.datenum,31), sa.bytes, sa.name )
... create a figure with an axes
pic = imread( fullfile( folder_spec, sa.name ), 'png' );
imagesc( pic )
end
.
Cont.
The code below illustrates the role of cell break, %%, inside the loop. Only Test 1 produces the result
  • text,picture, text,picture, text,picture
rgb = imread('ngc6543a.jpg');
%
%%Test 1
for ii = 1 : 3
fprintf( 'Picture: %u', ii )
image(rgb);
end
%%Test 2
for ii = 1 : 3
fprintf( 'Picture: %u\n', ii )
image(rgb);
end
%%Test 3
for ii = 1 : 3
fprintf( 'Picture: %u\n', ii )
figure, image(rgb);
end
%%Test 4
for ii = 1 : 3
fprintf( 'Picture: %u\n', ii )
figure, image(rgb);
drawnow()
end
.
2013-08-08: With R2013a and snapnow, this example produces the desired result
  • text,picture, text,picture, text,picture
%%Test with snapnow
for ii = 1 : 3
fprintf( 'Picture: %u\n', ii )
figure, image(rgb);
snapnow()
end
Since when has snapnow been around? Sean, thanks for making me aware of it.
  8 Comments
francesco
francesco on 22 Jul 2013
Yes, I think this is the only to overcome the problem. Thank you very much for your help ! Best regards
Peter
Peter on 29 Jul 2013
And something else to watch out for: Following this answer I discovered (2012b) that a try catch block around the section ment to flush the figures is a problem. For me, I had to remove the try catch, otherwise the %% had no effect in within the loop.

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