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    Matt,<br>
    <br>
    I'll have a go at writing Xdmf files.<br>
    <br>
    Am I right in thinking that VTK files are written sequentially?<br>
    <br>
    Thanks,<br>
    <br>
    David<br>
    <br>
    <div class="moz-cite-prefix">On 09/07/2020 20:17, Matthew Knepley
      wrote:<br>
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        <div dir="ltr">On Thu, Jul 9, 2020 at 2:51 PM David Scott <<a href="mailto:d.scott@epcc.ed.ac.uk" moz-do-not-send="true">d.scott@epcc.ed.ac.uk</a>>
          wrote:<br>
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          <blockquote class="gmail_quote" style="margin:0px 0px 0px
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            rgb(204,204,204);padding-left:1ex">Hello,<br>
            <br>
            I have written out a Vec using the (Fortran) HDF5 routines
            provided by<br>
            PETSc.<br>
            I now want to import the data into ParaView 5.8.0 and
            display a contour.<br>
            I can read the data in using VisItPixieReader but the
            contour tool is<br>
            not available. Can I use the HDF5 files produced by PETSc
            13.3.3 with<br>
            ParaView and, if so, how?<br>
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          <div>When you call VecView(), it just writes an array of real
            numbers to the HDF5 file. If Paraview can use an array</div>
          <div>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</div>
          <div>Xdmf file that points to the HDF5 file for the data and
            specifies the mesh using XML. Note  that you can have</div>
          <div>a DMDA or DMPlex write VTK files, which Paraview can read
            directly.</div>
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          <div>  Thanks,</div>
          <div><br>
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          <div>     Matt</div>
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            David<br>
            <br>
            <br>
            <br>
            The University of Edinburgh is a charitable body, registered
            in Scotland, with registration number SC005336.<br>
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        -- <br>
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                    <div>What most experimenters take for granted before
                      they begin their experiments is infinitely more
                      interesting than any results to which their
                      experiments lead.<br>
                      -- Norbert Wiener</div>
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                    <div><a href="http://www.cse.buffalo.edu/~knepley/" target="_blank" moz-do-not-send="true">https://www.cse.buffalo.edu/~knepley/</a><br>
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