[Paraview] Re: Display of time dependent unstructured grid separating the pointdata and the grid definition?

[Alessandro Bellina]

I'd be really interested to incorporate those changes into my copy of
paraview. Berk, is this something pretty simple to implement?

Alessandro

On Fri, Feb 22, 2008 at 10:09 AM, Antoine Dechaume <boolegue at gmail.com> wrote:
> I am interested too in the capability of storing the mesh once only,
>  and all time dependent data in separate files, and in one of the vtk
>  format.
>  I asked about this 1 month ago at vtkusers mailling list, Berk posted
>  the trick to save data in individual vtk files as vtkDataObject and
>  then merge the attributes with the geometry using
>  vtkMergeDataObjectFilter. But unfortunately Paraview can't load such
>  vtkDataObject files.
>
>  Boolegue.
>
>
>
>
>  On 22-Feb-08, at 7:36 AM, Berk Geveci wrote:
>
>  > It actually is (sort of :-). First of all, the vtu format supports
>  > multiple time steps in the same file. Unfortunately, this feature is
>  > not well documented. Mathieu is the original author, maybe he'll
>  > remember how it works.
>  > Second, Kent has modifications to the paraview source that allows vtu
>  > files to share the mesh when loading pvd files. I didn't have the time
>  > to look at his patch and incorporate it into paraview yet.
>  >
>  > -berk
>  >
>  > On 2/21/08, Alessandro Bellina <bellina at uiuc.edu> wrote:
>  >> Hi,
>  >> So basically the VTU format is not capable of this method?
>  >>
>  >> Thanks for your reply
>  >>
>  >>
>  >> Alessandro
>  >>
>  >>
>  >> On Thu, Feb 21, 2008 at 2:33 PM, montesino
>  >> <Stephane.Montesino at hmg.inpg.fr> wrote:
>  >>> Try the Ensight Gold File format, the mesh and the data are in 2
>  >>> different
>  >>> files and an ascii file (.case) the name of the files and the
>  >>> variable
>  >>>
>  >>> FORMAT
>  >>> type: ensight gold
>  >>>
>  >>> GEOMETRY
>  >>> model:     Electrodes-channel-**********.geo
>  >>>
>  >>> VARIABLE
>  >>> scalar per element: Electric_Polarity
>  >>> Electric_Polarity-Electrodes-channel-001-**********.scl
>  >>>
>  >>> TIME
>  >>> time set: 1
>  >>> number of steps:     8
>  >>> filename start number:         1
>  >>> filename increment:   1
>  >>> time values:
>  >>>          1.000
>  >>>          2.000
>  >>>          3.000
>  >>>          4.000
>  >>>          5.000
>  >>>          6.000
>  >>>          7.000
>  >>>          8.000
>  >>>
>  >>> Stéphane Montesino
>  >>>
>  >>>
>  >>> hello all,
>  >>> First of all, I have been using ParaView this year for grad work and
>  >>> it has really sped things up for me. Great tool!
>  >>>
>  >>> I am trying to visualize about 200 timesteps (using pvd
>  >>> collection) of
>  >>> a 50,000 node unstructure grid FEM.  As far I as I understand it, I
>  >>> need to include in every vtu file (each timestep) both the mesh
>  >>> definition (i.e. node coords, connectivity, offsets, etc) and
>  >>> obviously the actual pointdata for that timestep. Now, this is
>  >>> taking
>  >>> a little bit of time and was wondering if I could simplify this by
>  >>> breaking the mesh definition and point data into two different files
>  >>> somehow. I need my model to grow to millions of nodes!
>  >>>
>  >>> Thank you,
>  >>>
>  >>> Alessandro
>  >>>
>  >>>
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