Bug#805295: [Pkg-octave-devel] Bug#805295: Bug#805295: octave: Plot to file without X display does not work
Control: tags -1 fixed-upstream * Rafael Laboissiere [2015-11-18 17:38]: Control: tags -1 confirmed upstream * Mike Miller [2015-11-18 05:24]: [snip] Upstream bug report for fixing interaction with gnuplot v5 is at https://savannah.gnu.org/bugs/?42838. This bug is fixed upstream: http://hg.savannah.gnu.org/hgweb/octave/rev/c7d881aec36c Rafael
Bug#805295: [Pkg-octave-devel] Bug#805295: octave: Plot to file without X display does not work
Control: tags -1 confirmed upstream
* Mike Miller [2015-11-18 05:24]:
On Mon, Nov 16, 2015 at 18:43:46 +0100, Djalil Chafai wrote:
consider the following code stored in file plotest.m
# begin
graphics_toolkit('gnuplot')
set(0, 'defaultfigurevisible', 'off');
plot(sin(1:100));
print("plotest.jpg", "-djpg")
# end
bash> export DISPLAY=
bash> octave plotest.m
The image file plotest.jpg contains a fully black figure. It should not.
Agreed, this is due to an interaction between Octave and gnuplot v5.
[snip]
Upstream bug report for fixing interaction with gnuplot v5 is at
https://savannah.gnu.org/bugs/?42838.
Thanks for the replay, Mike. I am hereby tagging this bug report
accordingly.
Rafael
Bug#805295: octave: Plot to file without X display does not work
On Mon, Nov 16, 2015 at 18:43:46 +0100, Djalil Chafai wrote:
> consider the following code stored in file plotest.m
>
> # begin
> graphics_toolkit('gnuplot')
> set(0, 'defaultfigurevisible', 'off');
> plot(sin(1:100));
> print("plotest.jpg", "-djpg")
> # end
>
> bash> export DISPLAY=
> bash> octave plotest.m
>
> The image file plotest.jpg contains a fully black figure. It should not.
Agreed, this is due to an interaction between Octave and gnuplot v5.
Something different about gnuplot 5 causes the black fill area to be
drawn over all figures.
Since gnuplot is the only available toolkit when DISPLAY is not set,
there are a couple of (Debian-specific) workarounds to use gnuplot v4:
* uninstall gnuplot5, gnuplot5-qt, etc. packages
* use update-alternatives to set default gnuplot to be gnuplot v4
* add "gnuplot_binary('gnuplot4')" to plotest.m
Another alternative is to use an X display, even a fake one if
necessary, with Xvnc or Xvfb for example.
$ sed -i /graphics_toolkit/d plotest.m
$ xvfb-run octave plotest.m
Upstream bug report for fixing interaction with gnuplot v5 is at
https://savannah.gnu.org/bugs/?42838.
--
mike
Bug#805295: octave: Plot to file without X display does not work
Package: octave
Version: 4.0.0-5+b1
Severity: normal
Dear Maintainer,
consider the following code stored in file plotest.m
# begin
graphics_toolkit('gnuplot')
set(0, 'defaultfigurevisible', 'off');
plot(sin(1:100));
print("plotest.jpg", "-djpg")
# end
bash> export DISPLAY=
bash> octave plotest.m
The image file plotest.jpg contains a fully black figure. It should not.
Best wishes.
-- System Information:
Debian Release: 8.1
APT prefers stable
APT policy: (990, 'stable'), (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages octave depends on:
ii libamd2.3.11:4.2.1-3
ii libarpack2 3.1.5-3
ii libasound2 1.0.28-1
ii libblas3 [libblas.so.3]1.2.20110419-10
ii libc6 2.19-18
ii libcamd2.3.1 1:4.2.1-3
ii libccolamd2.8.01:4.2.1-3
ii libcholmod2.1.21:4.2.1-3
ii libcolamd2.8.0 1:4.2.1-3
ii libcxsparse3.1.2 1:4.2.1-3
ii libfftw3-double3 3.3.4-2
ii libfftw3-single3 3.3.4-2
ii libfltk-gl1.3 1.3.3-3
ii libfltk1.3 1.3.3-3
ii libfontconfig1 2.11.0-6.3
ii libfreetype6 2.5.2-3
ii libgcc11:4.9.2-10
ii libgl1-mesa-glx [libgl1] 10.6.3-1
ii libglpk36 4.55-1
ii libglu1-mesa [libglu1] 9.0.0-2
ii libgomp1 4.9.2-10
ii libgraphicsmagick++-q16-12 1.3.23-1
ii libgraphicsmagick-q16-31.3.21-4
ii liblapack3 [liblapack.so.3]3.5.0-4
ii liboctave3v5 4.0.0-5+b1
ii libopenblas-base [liblapack.so.3] 0.2.12-1
ii libosmesa6 10.6.3-1
ii libportaudio2 19+svn20140130-1
ii libqhull6 2012.1-5
ii libqrupdate1 1.1.2-1
ii libqscintilla2-12v52.9+dfsg-9
ii libqt4-network 4:4.8.6+git64-g5dc8b2b+dfsg-3+deb8u1
ii libqt4-opengl 4:4.8.6+git64-g5dc8b2b+dfsg-3+deb8u1
ii libqtcore4 4:4.8.6+git64-g5dc8b2b+dfsg-3+deb8u1
ii libqtgui4 4:4.8.6+git64-g5dc8b2b+dfsg-3+deb8u1
ii libsndfile11.0.25-9.1
ii libstdc++6 5.2.1-22
ii libumfpack5.6.21:4.2.1-3
ii libx11-6 2:1.6.2-3
ii octave-common 4.0.0-5
ii texinfo5.2.0.dfsg.1-6
Versions of packages octave recommends:
ii default-jre-headless 2:1.7-52
ii gnuplot-x11 4.6.6-2
ii libopenblas-base 0.2.12-1
ii octave-info 3.8.2-4
ii pstoedit 3.62-2+b1
Versions of packages octave suggests:
ii octave-doc 3.8.2-4
pn octave-htmldoc
-- no debconf information
