Bug#894462: paraview: edges are blotted [regression]

[Anton Gladky]

Hi Francesco,

thanks for bugreport. The problem with paraview now is that it does
not actually have any active maintainer [1]. I am not using it any more
and the Gert (thanks to him!) is doing some technical uploads.

If you really want it to be fixed (as well as export to AVI), feel free
to join our team and provide some patches. Or at least the communication
with upstream would be very helpful. Otherwise paraview is the good
candidate to be dropped from the next release.

[1] https://tracker.debian.org/pkg/paraview

Best regards

Anton


2018-03-30 18:01 GMT+02:00 Francesco Poli (wintermute)
<invernomuto at paranoici.org>:
> Package: paraview
> Version: 5.4.1+dfsg4-2
> Severity: grave
> Justification: renders package unusable
>
> Hello paraview Debian package maintainers,
> thanks for uploading a Debian revision that uses Qt5 rather than Qt4!
>
> I've just upgraded to it on my Debian testing box, but I found a bad
> regression that renders the package unusable to create beautiful and
> clear visualizations (this may be considered as basically the main
> purpose of paraview!).
>
>
> The attached test case is based on one of the data files generated
> by the little program included in the test case sent for bug #892293.
> The program source (written in Fortran) is included again for
> completeness' sake.
>
> Steps to reproduce the regression:
>
>   0) start paraview
>
>      $ paraview
>
>   1) click on the "Open" button and open "wave0001.xyz"
>
>   2) specify "PLOT3D Files" in the "Open Data With..." dialog window
>
>   3) click on the "Apply" button
>
>   4) change the representation from "Outline" to "Surface With Edges"
>
>   5) from the File menu, select Save State...
>
>   6) save the state as "wave_PARAVIEW-VERSION.pvsm"
>
>   7) from the File menu, select Save Screenshot...
>
>   8) save the screenshot as "wave_PARAVIEW-VERSION.png"
>
>
> By performing these steps with paraview/5.4.1+dfsg3-2 and
> with paraview/5.4.1+dfsg4-2, I obtained the two attached
> screenshots.
>
> In paraview/5.4.1+dfsg4-2 there seems to be a commendable attempt
> to apply some antialiasing to all the lines (including the edges
> on surfaces, the wireframe edges, but also the lines of the orientation
> axes, and so forth...).
> Unfortunately this new feature creates unsightly images, whenever
> the edges are shown from a distance. Please take a look yourself
> at the wave_5.4.1+dfsg4-2.png screenshot: all the intersections
> between edges seem to be somehow "blotted" and unpleasant to look at.
>
>
> Please fix this regression, as it makes paraview unusable.
>
> Thanks for your time!
> Bye.
>
>
> -- System Information:
> Debian Release: buster/sid
>   APT prefers testing
>   APT policy: (800, 'testing'), (500, 'unstable')
> Architecture: amd64 (x86_64)
>
> Kernel: Linux 4.15.0-2-amd64 (SMP w/4 CPU cores)
> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
> Init: systemd (via /run/systemd/system)
> LSM: AppArmor: enabled
>
> Versions of packages paraview depends on:
> ii  libavcodec57       7:3.4.2-1+b1
> ii  libavformat57      7:3.4.2-1+b1
> ii  libavutil55        7:3.4.2-1+b1
> ii  libc6              2.27-2
> ii  libcgns3.3         3.3.0-6
> ii  libexpat1          2.2.5-3
> ii  libfreetype6       2.8.1-2
> ii  libgcc1            1:8-20180321-1
> ii  libgl1             1.0.0-2
> ii  libgl2ps1.4        1.4.0+dfsg1-2
> ii  libglew2.0         2.0.0-5
> ii  libhdf5-100        1.10.0-patch1+docs-4
> ii  libjpeg62-turbo    1:1.5.2-2+b1
> ii  libjsoncpp1        1.7.4-3
> ii  libnetcdf13        1:4.6.1-1
> ii  libogg0            1.3.2-1+b1
> ii  libopenmpi2        2.1.1-8
> ii  libpng16-16        1.6.34-1
> ii  libprotobuf10      3.0.0-9.1
> ii  libpython2.7       2.7.14-7
> ii  libqt5core5a       5.9.2+dfsg-12
> ii  libqt5gui5         5.9.2+dfsg-12
> ii  libqt5help5        5.9.2-6
> ii  libqt5network5     5.9.2+dfsg-12
> ii  libqt5widgets5     5.9.2+dfsg-12
> ii  libqt5x11extras5   5.9.2-1
> ii  libstdc++6         8-20180321-1
> ii  libswscale4        7:3.4.2-1+b1
> ii  libtheora0         1.1.1+dfsg.1-14+b1
> ii  libtiff5           4.0.9-4
> ii  libx11-6           2:1.6.5-1
> ii  libxml2            2.9.4+dfsg1-6.1
> ii  libxt6             1:1.1.5-1
> ii  python-autobahn    17.10.1+dfsg1-2
> ii  python-matplotlib  2.1.1-2
> ii  python-mpi4py      2.0.0-3
> ii  python-six         1.11.0-2
> ii  python-twisted     17.9.0-1
> ii  tcl [tclsh]        8.6.0+9
> ii  zlib1g             1:1.2.8.dfsg-5
>
> Versions of packages paraview recommends:
> ii  mpi-default-bin  1.10
> ii  paraview-doc     5.4.1+dfsg4-2
> ii  paraview-python  5.4.1+dfsg4-2
>
> Versions of packages paraview suggests:
> pn  h5utils     <none>
> pn  hdf5-tools  <none>
>
> -- no debconf information
>
> --
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