[petsc-users] HDF5 and ParaView

[David Scott]

Matt,

I'll have a go at writing Xdmf files.

Am I right in thinking that VTK files are written sequentially?

Thanks,

David

On 09/07/2020 20:17, Matthew Knepley wrote:
> On Thu, Jul 9, 2020 at 2:51 PM David Scott <d.scott at epcc.ed.ac.uk 
> <mailto:d.scott at epcc.ed.ac.uk>> wrote:
>
>     Hello,
>
>     I have written out a Vec using the (Fortran) HDF5 routines provided by
>     PETSc.
>     I now want to import the data into ParaView 5.8.0 and display a
>     contour.
>     I can read the data in using VisItPixieReader but the contour tool is
>     not available. Can I use the HDF5 files produced by PETSc 13.3.3 with
>     ParaView and, if so, how?
>
>
> When you call VecView(), it just writes an array of real numbers to 
> the HDF5 file. If Paraview can use an array
> of real numbers, then you are all set. I don't know how to make 
> Paraview do that. What I do is to write an
> Xdmf file that points to the HDF5 file for the data and specifies the 
> mesh using XML. Note  that you can have
> a DMDA or DMPlex write VTK files, which Paraview can read directly.
>
>   Thanks,
>
>      Matt
>
>     David
>
>
>
>     The University of Edinburgh is a charitable body, registered in
>     Scotland, with registration number SC005336.
>
>
>
> -- 
> What most experimenters take for granted before they begin their 
> experiments is infinitely more interesting than any results to which 
> their experiments lead.
> -- Norbert Wiener
>
> https://www.cse.buffalo.edu/~knepley/ 
> <http://www.cse.buffalo.edu/~knepley/>

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