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[Octave-bug-tracker] [bug #44915] Random error when printing Qt/fltk fig


From: John W. Eaton
Subject: [Octave-bug-tracker] [bug #44915] Random error when printing Qt/fltk figures
Date: Wed, 13 May 2015 16:14:04 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0 Iceweasel/31.2.0

Follow-up Comment #9, bug #44915 (project octave):

Michael (or anyone who is able to reproduce some plotting or graphics printing
problems):

Could you test the following on your system for qt and fltk graphics using no
LIBGL_XX environment variable, LIBGL_ALWAYS_INDIRECT=1, and
LIBGL_ALWAYS_SOFTWARE=1?


plot (1:10);
print -depsc foo.eps


and see whether the printed version of the plot is correct?  I have other
people reporting that the EPS file is not right.  Instead of a line running
from (1,1) to (10,10), the line starts at either (2,2) or (3,3), possibly
randomly and forcing indirect or software rendering doesn't seem to be
helping.  At least this is a problem with the qt widgets, I'm not sure about
fltk.  And they say it works properly with an older 3.8.2 build.  Gah!

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  <http://savannah.gnu.org/bugs/?44915>

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