[Paraview] Paraview crashing when clipping an openfoam solution

[Joachim Pouderoux]

Carlos,

OpenFOAM can produce cells with non planar faces which is not handled by
VTK/ParaView. Moreover it appears that current reader implementation can
also produce incorrect cells when reading wedge cells.
Thanks to a recent rewriting of the polydron clipping algorithm, the
clipping/slicing of polyhedron should no more lead to crashes. However,the
problems
of non planar faces might produce some holes in the result.
We are currently working on a patch to better handle this case in the
reader.
If you want to try the new polyhedron  clipping algorithm, you will have to
use ParaView >= 5.5 RC1.

Best regards,
Joachim


*Joachim Pouderoux*, PhD

*Technical Expert - Scientific Computing Team*
*Kitware SAS <http://www.kitware.fr>*


2018-03-26 14:29 GMT-04:00 Carlos E Manglano-Villamarin <
carlosemanglanov at gmail.com>:

> It's me again, I'm sorry,
>
> Problem NOT solved!!! ... Hardware looks ok, software and system handling
> memory looks good too.
>
> ParaView shuts down if I try to generate a clip with the "VTK Polyhedron"
> option selected, before and after clipping ...
>
> possible bug??
>
> C.
>
> 2018-03-26 16:51 GMT+02:00 Shawn Waldon <shawn.waldon at kitware.com>:
>
>> Hi Carlos,
>>
>> That error message means that an exception was thrown from a Qt event
>> handler.  The message about reimplementing QApplication::notify() is just
>> to tell you how to catch the exception if you wanted to.  The real problem
>> is the exception.
>>
>> A std::bad_alloc exception happens when the program tries to allocate
>> memory and fails.  So you need to figure out why you are running out of
>> memory (that is the most likely cause of the error).
>>
>> HTH,
>> Shawn
>>
>> On Mon, Mar 26, 2018 at 10:47 AM, Carlos E Manglano-Villamarin <
>> carlosemanglanov at gmail.com> wrote:
>>
>>> Hi everyone!
>>>
>>> When I postprocess some simulations, less than 900,000 cells, from
>>> openfoam, either opening paraview directly or using the parafoam tool, the
>>> program crashes giving me the following error message:
>>>
>>> I/O    : uncollated
>>> terminate called after throwing an instance of 'std::bad_alloc'
>>>   what():  std::bad_alloc
>>> Qt has caught an exception thrown from an event handler. Throwing
>>> exceptions from an event handler is not supported in Qt. You must
>>> reimplement QApplication::notify() and catch all exceptions there.
>>>
>>> My OS is Ubuntu 16.04, freshly installed. I was getting the same error
>>> with Ubuntu 17.10 which I had installed until last night.
>>>
>>> I am looking for info about "reimplementing QApplication" with no luck.
>>>
>>> Any suggestions, please?
>>> Carlos
>>>
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the ParaView Wiki at:
>>> http://paraview.org/Wiki/ParaView
>>>
>>> Search the list archives at: http://markmail.org/search/?q=ParaView
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> https://public.kitware.com/mailman/listinfo/paraview
>>>
>>>
>>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the ParaView Wiki at:
> http://paraview.org/Wiki/ParaView
>
> Search the list archives at: http://markmail.org/search/?q=ParaView
>
> Follow this link to subscribe/unsubscribe:
> https://public.kitware.com/mailman/listinfo/paraview
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://public.kitware.com/pipermail/paraview/attachments/20180326/4ac92a90/attachment.html>