I have forwarded the information to our IT guy. I'll keep you posted. Rex Abert Associate Professor of Mathematics Tallahassee Community College ________________________________________ From: lon-capa-users-boun...@mail.lon-capa.org [lon-capa-users-boun...@mail.lon-capa.org] on behalf of Stuart Raeburn [raeb...@msu.edu] Sent: Thursday, June 25, 2015 10:58 AM To: lon-capa-users@mail.lon-capa.org Subject: Re: [LON-CAPA-users] Printing with version 2.11.1
Rex, > So that leaves us with the following options ... There is another option: Ask your server administrator to run: yum update to install newer versions of ImageMagick and ImageMagick-perl on loncapa.tcc.fl.edu I have now added newer ImageMagick and ImageMagick-perl rpms (6.8.9-7.centos6.lc) to the LON-CAPA CentOS 6 repository for 32 bit and 64 bit architectures: http://install.loncapa.org/centos/loncapa/6/x86_64/ http://install.loncapa.org/centos/loncapa/6/i386/ I tested printout generation of: /res/msu/kortemey/physicsprecourse/geometry/arclength.problem and it worked without error (i.e., created a non-blank PDF), after I updated a CentOS 6 VM to use these newer versions of ImageMagick to convert the arc.jpg image to arc.jpg.eps, and then reloaded the Apache web server: /etc/init.d/httpd reload Stuart Raeburn LON-CAPA Academic Consortium Quoting Rex Abert <abe...@tcc.fl.edu>: > Stuart & Gerd- > > Here is what I've found. > > 1) The TeX file looks OK. > 2) The dvi file looks OK, with placeholders for the images to come later. > 3) The .ps file mostly displays OK, but with errors on the resources > that contain images from Gerd, and no corresponding eps file for > the image. Pages that do not contain such an image have no issues. > 4) The conversion to pdf gives up upon reaching the first image > without a corresponding eps file. > > So that leaves us with the following options: Gerd: Would you be > willing to drop in some eps files for the images in your resources? > (If needed, I could snag the jpegs and convert them in GIMP and > email them back to you.) I would like to use the few problems > relating to Trigonometry in the same folder as the problem listed > below. If not, I could reproduce the problem in my own directory. > > Thanks! > > Rex Abert > Associate Professor of Mathematics > Tallahassee Community College > ________________________________________ > From: lon-capa-users-boun...@mail.lon-capa.org > [lon-capa-users-boun...@mail.lon-capa.org] on behalf of Rex Abert > [abe...@tcc.fl.edu] > Sent: Thursday, June 25, 2015 8:41 AM > To: Discussion list for LON-CAPA users > Subject: Re: [LON-CAPA-users] Printing with version 2.11.1 > > I'll look into this some more. The problem cited is the third one > in a homework folder. When printing all problems in the folder, I > get a pdf containing the first two problems, and nothing else. Your > tips should help me troubleshoot exactly where the issue is---it > could be in the second problem, perhaps. > > Anyway, thanks for the tips and I'll see what I find. > > Rex Abert > Associate Professor of Mathematics > Tallahassee Community College > ________________________________________ > From: lon-capa-users-boun...@mail.lon-capa.org > [lon-capa-users-boun...@mail.lon-capa.org] on behalf of Stuart > Raeburn [raeb...@msu.edu] > Sent: Wednesday, June 24, 2015 8:49 AM > To: lon-capa-users@mail.lon-capa.org > Subject: Re: [LON-CAPA-users] Printing with version 2.11.1 > > Hi Rex, > > For this resource: > > /res/msu/kortemey/physicsprecourse/geometry/arclength.problem > > the print utility in LON-CAPA generates a non-blank PDF when using any > of the servers in the msu domain, or any of the *educog.com servers > (all running LON-CAPA 2.11.1). > > I switched my web session to a number of other servers in the network > currently running 2.11.1 and found that a non-blank PDF was also > generated on servers in other domains where the Linux distro was > CentOS 5 or 7, or Ubuntu 12 or 14. However, a blank PDF was the > result on some (but not all) servers running CentOS 6. > >> ... Now, I just get a link to the pdf file and nothing else. Is >> there a way to find the log and TeX files with 2.11.1? > > There has not been a change in the display of links to the .log and > .tex files in 2.11.1 as compared with earlier LON-CAPA versions. > > Those links are displayed to "advanced users" (e.g., Course > Coordinators, Authors/Co-authors etc.) when an "Emergency stop" is > found in the log file. > > If printout generation is successful and the various stages of the > process are completed (i.e., calls to latex, dvips, ps2pdf13 complete > etc.) then the corresponding files with extensions .log, .tex, .ps > and .pdf will remain in the prtspool directory, until the nightly > clean-up by cleanup_file_caches.pl. > > You can access the .log, .tex etc. files by replacing the .pdf > extension, with the extension for the desired file in your browser's > address box. If you right click (or ctrl-click for Mac) on the link: > "Your PDF file" in the text: > > <Name> - Your PDF file is ready for download, in the final printout > generation screen then you can copy the link location, which will be > of the form: > http://loncapa.tcc.fl.edu/prtspool/<user>_<domain>_<identifier>.pdf > > Comparing sizes for the various files generated when printing > /res/msu/kortemey/physicsprecourse/geometry/arclength.problem > (imported into a course) in the same course for the same user on msua4 > (i.e., s4.lite.msu.edu) versus tccfll1 (i.e., loncapa.tcc.fl.edu) I > find: > > 2412 msua4.dvi > 26010 msua4.log > 30978 msua4.pdf > 999358 msua4.ps > 3740 msua4.tex > 1001384 msua4temporar.ps > > 2408 tccfll1.dvi > 26010 tccfll1.log > 9360 tccfll1.pdf > 1003401 tccfll1.ps > 3740 tccfll1.tex > 1005427 tccfll1temporar.ps > > A diff of tccfll1.tex and msua4.tex reports no differences. > > However the .dvi files are different, and in addition the .ps file > generated on loncapa.tcc.fl.edu cannot be displayed with a postscript > viewer. > > The issue would seem to be in the generation of the .dvi file within > cgi-bin/printout.pl from the command: > > "latex filename.tex 1>/dev/null 2>/dev/null" > > where filename is the name of the .tex file. > > Note: loncapa.tcc.fl.edu and s4.lite.msu.edu have the same Linux > distro, and architecture. > > > Stuart Raeburn > LON-CAPA Academic Consortium > > > Quoting Rex Abert <abe...@tcc.fl.edu>: > >> I'm having difficulty printing some resources after our system was >> upgraded to 2.11.1. Previously, if there was a TeX error, Lon-Capa >> would provide links to the log file and the original TeX file to >> assist in troubleshooting. Now, I just get a link to the pdf file >> and nothing else. Is there a way to find the log and TeX files with >> 2.11.1? >> >> For what it's worth, the resource that is causing the error is >> >> /res/msu/kortemey/physicsprecourse/geometry/arclength.problem >> >> (Sorry, Gerd!) >> >> Rex Abert >> Associate Professor of Mathematics >> Tallahassee Community College >> _______________________________________________ >> LON-CAPA-users mailing list >> LON-CAPA-users@mail.lon-capa.org >> http://mail.lon-capa.org/mailman/listinfo/lon-capa-users _______________________________________________ LON-CAPA-users mailing list LON-CAPA-users@mail.lon-capa.org http://mail.lon-capa.org/mailman/listinfo/lon-capa-users _______________________________________________ LON-CAPA-users mailing list LON-CAPA-users@mail.lon-capa.org http://mail.lon-capa.org/mailman/listinfo/lon-capa-users
