[Paraview] Adding time steps to a data set

[Moreland, Kenneth]

Miguel,

As suggested by Sam, ParaView relies on the time code in the Exodus files to determine which time is valid. You can use the file sequence naming convention you state to load a time series of files (to, for example, support a changing mesh). However, each file must have a unique time value or else the reader will discard all but one as duplicates. There is an open bug (http://www.paraview.org/Bug/view.php?id=15967) to add an option to ignore the time value in an Exodus file.

-Ken


From: ParaView <paraview-bounces at paraview.org<mailto:paraview-bounces at paraview.org>> on behalf of Samuel Key <samuelkey at bresnan.net<mailto:samuelkey at bresnan.net>>
Date: Wednesday, February 10, 2016 at 6:48 PM
To: paraview <paraview at paraview.org<mailto:paraview at paraview.org>>
Subject: [EXTERNAL] Re: [Paraview] Adding time steps to a data set

Miguel,

The ExodusI/ExodusII database has from its beginning supported multiple time steps. However, it is structured with a one-time write of the time=0.0 mesh data, and then successive point, cell and global (aka 'domain') datum sets written time step after time step. If in the optimization, the structure for the mesh has been altered, then the approach you used up to now may be your only answer.

If the mesh structure has stayed the same from optimization step to optimization step and you have saved the optimization changes as point displacements, and if you have access to source coding, you might be able to repeat the optimization steps and write out into a single ExodusI/ExodusII database the sequence of optimization steps as time steps appended to the to the database. I am not in a position to tell you the subroutine calls needed to successively close and open an ExodusI/ExodusII database. You might find that information here:

http://gsjaardema.github.io/seacas/html/index.html

Sam Key


On 2/10/2016 11:50 AM, Salazar De Troya, Miguel wrote:
Hello

I have several exodus files which are snapshots of an optimization history. Each snapshot reflects a design change and how it is gradually being improved and more optimal. I want to make a movie showing this optimization history.

What I have done so far is to add all the files in the pipeline showing the design field, add each file to the Animation View as a frame and play with the Opacity and the time intervals to show the design transitions. This looks alright, but I what I think that would look better is to use a Temporal Interpolator filter. For that I would need to have a time series. I tried modifying the file names and adjust them to the convention filename.e-s.001, filename.e-s.002, etc, but this doesn't do anything. I think the reason is because the exodus files do not contain anything related to time. Is this correct? How could I add time to my exodus files within paraview?

Thanks
Miguel




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