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List:       paraview
Subject:    Re: [Paraview] VTK grid writing over time using offsets
From:       Samuel Key <samuelkey () bresnan ! net>
Date:       2018-08-06 13:32:10
Message-ID: a5c7023b-59e2-a993-3637-acd132874224 () bresnan ! net
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Arno,

If your mesh is truly rigid, that is, the mesh is fixed in space and 
time, the following would likely work. ParaView will accept more than 
one   datum set (even in different formats). Write your rigid mesh out as 
a separate datum set in any format you like.

Load both your time varying results and non-time varying mesh. (You may 
have to use one the ParaView temporal filters to assign all time steps 
to the fixed mesh datum set?)

Hope this helps.

Sam


On 8/6/2018 1:32 AM, Arno Mayrhofer wrote:
> Hi all,
>
> I am currently investigating the possibility to reduce the output 
> written by our DEM software. One case we often have is that a PolyData 
> object is written every n time steps and we are not interested in any 
> fields on this rigid mesh object only the current location of this 
> object. The naive approach is to write the full information of this 
> object using the vtkXMLPolyDataWriter during each output step. 
> However, since the mesh is rigid and we have no active fields on this 
> mesh it would be sufficient to save this full information at time 0. 
> Then at each successive output all information we need would be the 
> offset and rotation with respect to this initial object.
>
> Is something like this possible with VTK?
>
> Kind regards,
> Arno
>
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