[Paraview] PVD file format?

[Dan Goldstein]

Hi Dan,
   You can just use a real value for the timestep.
Here is a sniped of one of my pvd files. "part" can be used to specify  
multiple parts of a mesh for a given time  step.
For instance I use this to write out data from separate processes in a  
given time step in a mpi job.

<?xml version="1.0"?>
<VTKFile type="Collection" version="0.1" byte_order="LittleEndian">
<Collection>
<DataSet timestep="296.8545" group="" part="0"  
file="rns157_Natfreq_slc01_Vtp_nid0000_fld0122.vtu"/>
<DataSet timestep="300.1596" group="" part="0"  
file="rns157_Natfreq_slc01_Vtp_nid0000_fld0123.vtu"/>
<DataSet timestep="303.7438" group="" part="0"  
file="rns157_Natfreq_slc01_Vtp_nid0000_fld0124.vtu"/>
.
.
.
<DataSet timestep="11114.6504" group="" part="0"  
file="rnj157_Natfreq_slc01_XVpt_nid0000_fld1866.vtu"/>
</Collection>
</VTKFile>


Dan

On Aug 12, 2008, at 9:26 AM, daniel.lenski at seagate.com wrote:

>
> Hi all,
> I am using Paraview to visualize large time-series of data from  
> materials simulations.  I've used the file-formats.pdf documentation  
> to convert our simulator's file format to ParaView's .VTU  
> unstructured grid format, which has been very successful.
>
> I'm having trouble finding information on the PVD file format used  
> to make time-series.  It doesn't seem to be documented anywhere.   
> All I have is a few ad-hoc snippets of the file format to go off of:
>
> <VTKFile type="Collection">
>   <Collection>
>     <DataSet timestep="0000" file="combined.0001.vtu"/>
>     <DataSet timestep="0001" file="combined.0002.vtu"/>
>     <DataSet timestep="0002" file="combined.0003.vtu"/>
>     <DataSet timestep="0003" file="combined.0004.vtu"/>
>     <DataSet timestep="0004" file="combined.0005.vtu"/>
>     <DataSet timestep="0005" file="combined.0006.vtu"/>
>     ...
>     ...
>   </Collection>
> </VTKFile>
>
> Is there any documentation available on this file format?  What I'm  
> most interested in is doing non-unit timesteps so that I can produce  
> an animation with Paraview with a timescale proportional to the real  
> time-scale of the simulation.
>
> Thanks for any advice!
>
> Dan_______________________________________________
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> ParaView at paraview.org
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