[petsc-users] HDF5 and ParaView

[Matthew Knepley]

On Thu, Jul 9, 2020 at 2:51 PM David Scott <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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