[Paraview] [vtkusers] Paraview bug found in pvtu files containing polyhedrons

[Andy Bauer]

Hi Andy,

Please keep the conversations on the mailing list so that everyone can
follow along (also it won't get lost in my inbox that way either).

This fix will be in the PV 5.1 release. For now you should be able to get
an installer at  https://open.cdash.org/index.php?project=ParaView&date=
under the latest-packages or master-packages section. Click on the yellow
box of the OS that you want to download an installer. Note tha tthe Build
Name gives a description of how ParaView as built.

Cheers,
Andy

On Fri, Mar 11, 2016 at 9:07 AM, Andrew Parker <
andy.john.parker at googlemail.com> wrote:

> Hi Andy,
>
> Could I ask, where would I go about downloading a pre-build that includes
> this? Which formal release will it make it into?  Should I download
> paraview-latest etc?  Not done that before, only every built from source or
> downloaded tags.  Don’t have time to build from source at the moment and
> wondered whether these changes are in fact already being built within a
> pre-built binary that I could use until this makes it into a tag?
>
> Thanks again
> Andy
>
> On 3 Mar 2016, at 22:08, Dr Andrew Parker <andy.john.parker at googlemail.com>
> wrote:
>
> Hi,
> Many thanks for this I shall test this and get back to you asap.
>
> Best
> Andy
>
> Sent from my iPhone
>
> On 3 Mar 2016, at 19:43, Andy Bauer <andy.bauer at kitware.com> wrote:
>
> Hi,
>
> Thanks for the bug report. I have a fix for this that's going through
> testing right now. It's at
> https://gitlab.kitware.com/vtk/vtk/merge_requests/1300 if you want to
> take a look and test it out as well. I only tested it with your input so it
> could certainly use a bit more testing with other data sets. If you do
> that, please let us know how it works.
>
> Best,
> Andy
>
> On Mon, Feb 29, 2016 at 11:03 AM, Andrew Parker via vtkusers <
> vtkusers at vtk.org> wrote:
>
>> Dear All,
>>
>> I have recently been having problems reading pvtu files in paraview when
>> those files contain arbitrary polyhedrons: this is from the output of a
>> large scale code that runs in parallel via mpi.  To show the problem, I
>> have written a very small sample code, attached, that runs in serial but
>> reproduces the salient issues experienced by my larger code when run in
>> parallel.  It is clear, via the toggling a boolean, that the problem
>> happens when vtk_polyhedrons types are used.  There is a short description
>> at the top of the bug.cxx file, followed by instructions.  I use stock
>> versions of paraview here, although self compiled ones show no difference.
>>
>> In short compile the code, run it, and open the pvtu file in paraview.
>> You should see 4 cells.
>> Switch the “bug” bool to true, recompile, re-run it, and reopen the pvtu
>> file.  The screen will be blank.
>>
>> The only difference is that cells are added to the unstructured grid
>> explicitly as vtk_polyhedrons using a face-stream, rather than as hexs.  I
>> cannot do this in the real code!  The rest of the code is just there to
>> produce the “serial” mesh, and threshold this mesh to produce two
>> “parallel-partition” meshes.  I use the new ghost type framework as this is
>> consistent with the real code, and this runs and compiles on OS X and gcc.
>> Likewise it has been build against vtk 6.3 and the bug manifests itself in
>> paraview 4.4 and 5.0.  Visit 2.10 does not have this bug and can correctly
>> open the pvtu containing polyhedrons: this is my current workaround.
>>
>> Can any of the developers shed light on this?  Is a fix known, if so when
>> will it be released?  Do others have this problem [1, 2, 3] outside of
>> those long reported? Does anyone else have workarounds?
>>
>> Any help really appreciated,
>> Andy
>>
>> [1] http://public.kitware.com/pipermail/vtkusers/2015-May/090835.html
>> [2] https://cmake.org/pipermail/paraview/2012-October/026456.html
>> [3] https://cmake.org/pipermail/paraview/2015-January/032950.html
>>
>>
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