[LON-CAPA-users] Printing with version 2.11.1

Thu Jun 25 22:36:24 EDT 2015

Throwing in my two cents with a few things that might or might not be pertinent.

Older versions of Centos had versions of ImageMagick that would not convert png
files gracefully. This is the kind of thing that would be machine-dependent. I think
it was Centos 5 that was the culprit, but 6 and 7 are fine.

On another note, I like using Inkscape, but I’ve found that the eps file produced messes
up the pdf file: the column is skipped right after one of the eps files is used.
I can modify the eps file by hand in a way that fixes this.

Mark

On Jun 25, 2015, at 9:12 AM, Rex Abert <ABERTR at tcc.fl.edu> wrote:

> 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-bounces at mail.lon-capa.org [lon-capa-users-bounces at mail.lon-capa.org] on behalf of Rex Abert [ABERTR at 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-bounces at mail.lon-capa.org [lon-capa-users-bounces at mail.lon-capa.org] on behalf of Stuart Raeburn [raeburn at msu.edu]
> Sent: Wednesday, June 24, 2015 8:49 AM
> To: lon-capa-users at 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 <ABERTR at 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 at mail.lon-capa.org
>> http://mail.lon-capa.org/mailman/listinfo/lon-capa-users
> 
> _______________________________________________
> LON-CAPA-users mailing list
> LON-CAPA-users at mail.lon-capa.org
> http://mail.lon-capa.org/mailman/listinfo/lon-capa-users
> _______________________________________________
> LON-CAPA-users mailing list
> LON-CAPA-users at mail.lon-capa.org
> http://mail.lon-capa.org/mailman/listinfo/lon-capa-users
> _______________________________________________
> LON-CAPA-users mailing list
> LON-CAPA-users at mail.lon-capa.org
> http://mail.lon-capa.org/mailman/listinfo/lon-capa-users

-- 
Mark Lucas 								email: lucasm at ohiou.edu
252D Clippinger Lab						phone: (740)597-2984
Department of Physics and Astronomy		fax: (740)593-0433
Ohio University
Athens, OH 45701