[Paraview] VTK grid writing over time using offsets

[Arno Mayrhofer]

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