Demo Discussion
Forum Config Examples Contributions Vulnerabilities
  Discussion forum about ELOG  Not logged in ELOG logo
icon5.gif   elog's image manipulation of .png file generated from a pdf/jpg, posted by David Pilgram on Thu Nov 22 16:23:08 2012 
    icon2.gif   Re: elog's image manipulation of .png file generated from a pdf/jpg, posted by Stefan Ritt on Wed Feb 6 13:25:33 2013 
       icon2.gif   Re: elog's image manipulation of .png file generated from a pdf/jpg, posted by David Pilgram on Sat Feb 9 15:11:19 2013 
          icon2.gif   Re: elog's image manipulation of .png file generated from a pdf/jpg, posted by Stefan Ritt on Mon Feb 11 14:21:05 2013 
             icon2.gif   Re: elog's image manipulation of .png file generated from a pdf/jpg, posted by Martin Rongen on Tue Jul 16 15:42:30 2013 
                icon2.gif   Re: elog's image manipulation of .png file generated from a pdf/jpg, posted by Stefan Ritt on Tue Jul 16 16:35:01 2013 psi.png
                   icon6.gif   Re: elog's image manipulation of .png file generated from a pdf/jpg, posted by Andreas Luedeke on Fri Jul 19 14:03:29 2013 psi.pdf
                      icon2.gif   Re: elog's image manipulation of .png file generated from a pdf/jpg, posted by Martin Rongen on Mon Jul 22 14:05:48 2013 
Message ID: 67432     Entry time: Sat Feb 9 15:11:19 2013     In reply to: 67430     Reply to this: 67433
Icon: Reply  Author: David Pilgram  Author Email: David.Pilgram@epost.org.uk 
Category: Question  OS: Linux  ELOG Version: 2.9.2-2475 
Subject: Re: elog's image manipulation of .png file generated from a pdf/jpg 
> > Hi all, 
> > 
> > Is it just my system or do others have this odd issue.
> > 
> > I have a pdf file which is 'upside-down', I attached it to an elog entry, and the .png image thumbnail was
> > generated.  Now this too was upside-down, so I tried to use the left (or right) rotation buttons along the top
> > of the image in elog to do a 180 degree rotation.
> > The first 90 degree rotation was fine, but the second attempt just made a smaller image.  
> > It happens with various pdf files generated by various software (in case).
> > I also tried it with a jpg file, in that case the second attempt enlarged the image.
> > 
> > I could not find any way to actually invert the .png image using elog; but I was surprised that a second
> > rotation ddid something different (change magnification) rather than nothing at all if it could only cope with a
> > 90 degree rotation.
> > 
> > It's not a vital fix for me, but I have found the thumbnail (png) manipulation functions have a few rough edges,
> > so when necessary I use xv or gimp on the .png file to get what I want.
> > 
> > Or is this just my system?
> 
> I just tried on the demo logbook:
> 
> https://midas.psi.ch/elogs/Linux+Demo/14
> 
> and it worked fine in rotating the image twice. Can you try yourself and find out if it's related to your installation if ImageMagic, or the actual image file?
> 
> /Stefan

Hi Stefan,

Well I didn't crash the server this time, and I could invert the image in the demo logbook by doing two rotations.
But, this is elog v2.9.0-2435, and I am using v2.9.2-2475.  And I remember there was a recent issue about the image manipulation at some point, so I went to the
download section to read the subversion listing to find where this occurred.  But you've changed subversion!  I couldn't find my way around it, so I not only could
I find the changefile that showed what happened for each subversion issue, but even how I could download the current (or indeed any past) subversion issue.

As far as I can recall, you made a change, I reported an issue, and you undid the change, or partially undid it.  Do you know when this was?  Could it be relivent?
ELOG V3.1.5-3fb85fa6