[Paraview] [EXTERNAL] Decode a vtu file

[Moreland, Kenneth]

Documentation for vtu file format (and several other standard VTK formats) is here:

http://www.vtk.org/VTK/img/file-formats.pdf

-Ken

From: ParaView [mailto:paraview-bounces at paraview.org] On Behalf Of Andi Hartarto
Sent: Thursday, January 12, 2017 7:54 PM
To: paraview at paraview.org
Subject: [EXTERNAL] [Paraview] Decode a vtu file

Hello all,

Can I please have guidance/help in decoding a vtu file?

My file is a
<?xml version="1.0"?>
<VTKFile type="UnstructuredGrid" version="0.1" byte_order="LittleEndian" compressor="vtkZLibDataCompressor">
  <UnstructuredGrid>
    <Piece NumberOfPoints="116"                  NumberOfCells="1052"                >
      <PointData>
      </PointData>
      <CellData>
        <DataArray type="Int32" Name="TetrahedraRank" format="appended" RangeMin="1"                    RangeMax="2"                    offset="0"                   />
        <DataArray type="Int32" Name="TetrahedraNo" format="appended" RangeMin="0"                    RangeMax="262"                  offset="188"                 />
      </CellData>
      <Points>
        <DataArray type="Float32" Name="Points" NumberOfComponents="3" format="appended" RangeMin="2003013.3465"         RangeMax="2003224.1668"         offset="812"                 />
      </Points>
      <Cells>
        <DataArray type="Int64" Name="connectivity" format="appended" RangeMin=""                     RangeMax=""                     offset="1680"                />
        <DataArray type="Int64" Name="offsets" format="appended" RangeMin=""                     RangeMax=""                     offset="5892"                />
        <DataArray type="UInt8" Name="types" format="appended" RangeMin=""                     RangeMax=""                     offset="8116"                />
      </Cells>
    </Piece>
  </UnstructuredGrid>
  <AppendedData encoding="base64">
  (data long list)

The file can be found in this link:
https://drive.google.com/open?id=0BzmZiSDoM7l3U2poYWNTbUhBWVU

I don't understand how to decode a vtk file and couldn't find anything in google. I've tried using some scripts in python for base64 but it didn't work..

The reason why I need to decode this is because somehow this vtk file which load in paraview perfectly becomes a 2d file in another software "MOOSE" .. So I think somehow in the encoded data is telling the other software "only display the 2D intersection of blocks". But I want a 3D cube not a 2D surface. If someone knows about this please tell me .

Thank you,
Andi
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