[Paraview] How to do show geometry boundaries?

Fri Mar 28 16:37:20 EDT 2008

ParaView is very flexible and the final result depends solely on which 
filter are used and how you associate them to modify the visualization 
pipeline. "It's like play with Lego ;o)". Thus, you have several ways to 
get equivalent results, for example:

(DS0,DS1,DS2,DS3) --> Append Datasets --> Clean to grid  (***) --> 
Extract surface --> clip (ok, it's already done...)

Now, select the clean to grid dataset and build a second pipeline like this:

(***) Clean to grid --> Glyph (it'll give you the glyphs inside the 
domain) --> clip (use a 2nd. clip to select what portion of the domain 
should stay visible)

Of course, you could also apply the clip before the glyph filter that 
the final result should be the same (I guess, since I'm not testing it). 
Note also that you will be branching the pipeline, which is very common 
in VTK and ParaView as well.

You only should keep in mind what each filter gets as input and what 
they produce as output to go further deriving the way the data is 
visualized.

Hope it helps you with what you want.

Regards

Renato N. Elias
================================
Researcher - http://www.nacad.ufrj.br/~rnelias
High Performance Computing Center (NACAD)
Rio de Janeiro, Brazil

Hsieh, Pei-Ying (MED US) wrote:
> Hi, Renato,
>
> WOW, this worked really well.  Now I got the fluid/solid boundaries with
> parallel interfaces removed.  But, when I applied Glyph to show the
> velocity vector "inside" the domain, I only got velocity vectors drwan
> on the surfaces (this is after clip).  If I selected the original
> dataset and do Glyph, then, I got velcity vectors both inside and
> outside of the clip.  Any suggestion?
>
> I have attached what I got from your steps.  How can I add vecity vector
> to only the inside of the clip?
>
> Thanks!
>
> Pei
>  
>
> -----Original Message-----
> From: rnelias at nacad.ufrj.br [mailto:rnelias at nacad.ufrj.br] 
> Sent: Friday, March 28, 2008 2:38 PM
> To: Hsieh, Pei-Ying (MED US)
> Cc: paraview at paraview.org
> Subject: RE: [Paraview] How to do show geometry boundaries?
>
>
> If your data is not a multigroup dataset you can try the "append
> datasets"
> filter associated with the  "clean to grid" before the procedure I
> described in
> my last email. So, your pipeline should look like:
>
> (DS0,DS1,DS2,DS3) --> Append Datasets (join the parallel pieces) -->
> Clean to
> grid (it removes the parallel interface) --> Extract surface (to get
> only the
> boundary surfaces) --> Clip (to cut out the boundaries)
>
> In the pipeline above "DS" means Dataset (a pv file in your case)
>
> Cheers
>
> Renato.
>
> Quoting "Hsieh, Pei-Ying (MED US)" <pei-ying.hsieh at siemens.com>:
>
>   
>> Hi, Renato,
>>
>> Thanks a lot for the tip.  This is closer to what I am looking for.  I
>> still have to work on two more things:
>>
>> 1. There are 4 paritions in this dataset.  When I extract by surface,
>>     
> it
>   
>> also shows the the surfaces of the partitions.  Is there a way to get
>> ride of these "ghost cells"?
>> 2. After extract by surface, I did a clip is show interior of the
>> domain, then, it showed the solid/fluid boundaries.  But, I need to
>>     
> plot
>   
>> velocity vector inside this domain.  PV seems to only plot the
>>     
> veclocity
>   
>> vector on the surfaces and not interior of the domain together with
>>     
> the
>   
>> soild/fluid boundaries.
>>
>> Any suggestion?
>>
>> Pei
>>
>> -----Original Message-----
>> From: rnelias at nacad.ufrj.br [mailto:rnelias at nacad.ufrj.br]
>> Sent: Friday, March 28, 2008 12:56 PM
>> To: Hsieh, Pei-Ying (MED US)
>> Cc: paraview at paraview.org
>> Subject: Re: [Paraview] How to do show geometry boundaries?
>>
>>
>> I'm not sure if I understood your question completely, but you can
>> filter out
>> the boundaries and see the solid region inside the domain by using the
>> "extract
>> surface" filter combined with the "clip" filter to hide the
>>     
> boundaries.
>   
>> Regards
>>
>> Renato.
>>
>> Quoting "Hsieh, Pei-Ying (MED US)" <pei-ying.hsieh at siemens.com>:
>>
>>     
>>> Dear PV group:
>>>
>>> I completed a transient conjugate heat transfer analysis which
>>>       
>> contains
>>     
>>> solid regions and fluid regions.  Data were save in pvtu format.  It
>>> contains temperature field and velocity field.
>>>
>>> Is it possible to somehow plot the fluid/solid boundaries?  Also, is
>>>       
>> it
>>     
>>> possible to plot the velocity field without the solid regions (maybe
>>> still show the walls of the solid regions with temperature)?
>>>
>>> Thanks!
>>>
>>> Pei
>>>
>>>
>>> -------------------------------------
>>> Pei-Ying Hsieh, Ph.D.
>>> Staff Product Engineer
>>> Siemens Healthcare Diagnostics Inc.
>>> 511 Benedict Ave., MS 32
>>> Tarrytown, NY 10591
>>> USA
>>> Phone: (914)524-3146
>>> fax:   (914)524-2580
>>> email: Pei-Ying.Hsieh at siemens.com
>>> www.siemens.com/diagnostics
>>>
>>>
>>>       
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