[Paraview] [newbie] show grid in paraview - wireframe shows triangles instead of quads...

[Moreland, Kenneth]

No, I'm pretty sure the problem has nothing to do with your graphics card.
 It has to do with you running in multi-core mode (Settings -> General ->
Use Multi-Core) and using quadratic elements (the 20-element hexahedra).
You have not stated, but I'm betting that it works when the Use Multi-Core
feature is off but does not work when the feature is on.

It is only fairly recently that the wireframe displays correctly for
quadratic elements, and there is a corner case where it still does not
work.  This happens to be the case when using the multi-core feature.

So in short, correct wireframes for quadratic elements in multi-core mode
is not supported.  I raised a suggestion to fix it on ParaView UserVoice.
If you want the feature fixed, go vote for it.

http://paraview.uservoice.com/forums/11350-general/suggestions/2238657-corr
ect-wireframe-for-quadratic-elements-in-multi-

-Ken

   ****      Kenneth Moreland
    ***      Sandia National Laboratories
***********  
*** *** ***  email: kmorel at sandia.gov
**  ***  **  phone: (505) 844-8919
    ***      web:   http://www.cs.unm.edu/~kmorel




On 9/9/11 9:34 AM, "newsboost" <newsboost at gmail.com> wrote:

>Ok - I think I know what the problem is...
>
>Anyone with ATI graphics card here who can reproduce my problem? I'm
>pretty sure that if you have an ATI graphics card, you'll have the same
>problem as me...
>
>I guess whoever the vtk-file works for, is using NVIDIA graphics cards
>(or something other than ATI) - am I right, Utkarsh?
>
>So I'm completely sure the problem is related to the graphics card
>drivers. Can somebody here confirm my theory?
>
>
>On 2011-09-08 15:40, Utkarsh Ayachit wrote:
>> No luck reproducing the problem here (see attached image). Try running
>> with "-dr" command line option. Wondering is some setting got changed
>> inadvertently that's causing this problem.
>>
>> Utkarsh
>>
>> On Thu, Sep 8, 2011 at 9:22 AM, newsboost<newsboost at gmail.com>  wrote:
>>> Dear all,
>>>
>>> Ok - my problem was/is related to a 20-node element - please see this
>>>simple
>>> vtk-file and then change to "wireframe" and *pplease* tell me why I
>>>cannot
>>> see the true grid/mesh, but these annoying triangles that make up the
>>> element...
>>>
>>>
>>> http://www.filedropper.com/omega001
>>>
>>>
>>> Please advice (somebody more clever than me) and perhaps suggest a
>>>solution
>>> so I can see the true mesh/grid for a 20-node element like I uploaded!
>>>:-)
>>>
>>>
>>>
>>>
>>> On 2011-09-06 21:13, Scott, W Alan wrote:
>>>> Could you post an example dataset, or show us how to replicate this
>>>>with a
>>>> sources/... source?  Also, what version of ParaView?  Local server?
>>>>
>>>> Thanks,
>>>>
>>>> Alan
>>>>
>>>> -----Original Message-----
>>>> From:paraview-bounces at paraview.org
>>>>[mailto:paraview-bounces at paraview.org]
>>>> On Behalf Of newsboost
>>>> Sent: Tuesday, September 06, 2011 5:19 AM
>>>> To:paraview at paraview.org
>>>> Subject: [Paraview] [newbie] show grid in paraview - wireframe shows
>>>> triangles instead of quads...
>>>>
>>>> Hi all,
>>>>
>>>> [newbie question]: I want to show my mesh/grid in paraview and turn on
>>>> "wireframe" mode. But this shows triangles instead of quads... I
>>>> colleague of mine says that on his windows pc the correct quad mesh is
>>>> shown but on my linux pc, I only see triangles...
>>>>
>>>> Please help me understand how to see the true grid instead of the
>>>> triangles...
>>>>
>>>> Thanks.
>>>>
>>>> _______________________________________________
>>>> Powered bywww.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
>>>>
>>>> Follow this link to subscribe/unsubscribe:
>>>> http://www.paraview.org/mailman/listinfo/paraview
>>>>
>>>>
>>> _______________________________________________
>>> Powered bywww.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
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> http://www.paraview.org/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
>
>Follow this link to subscribe/unsubscribe:
>http://www.paraview.org/mailman/listinfo/paraview
>