Query regarding reading comments inserted into .VTU files

ParaView Support
1

Hi, I’m working with xml .VTU files and I’d like to add a comment in the top line xml header that para-view won’t interpret or throw an error with and I’m unsure what specific text is safe here.

Something along the lines of:

<VTKFile type="UnstructuredGrid" version="1.0" comment="comment text" byte_order="LittleEndian" header_type="UInt32">

Where comment is arbitrary data that para-view doesn’t care about.

I know I can add extra data further down the file itself however this is for a CFD research flow solver and it works out easier to maintain my codebase keeping stuff on the first line of the file if I can.

For completeness of the question my exact file structure is as follows:

<VTKFile type="UnstructuredGrid" version="1.0" byte_order="LittleEndian" header_type="UInt32">
  <UnstructuredGrid>
    <Piece NumberOfPoints="" NumberOfCells="">
      <Points>
        <DataArray> [Coordinates] </DataArray>
      </Points>
      <Cells>
        <DataArray> [MESHDATA] </DataArray>
      </Cells>
      <PointData>
        <DataArray> [POINTDATA] </DataArray>
      </PointData>
    </Piece>
  </UnstructuredGrid>

  <AppendedData encoding="raw">_
    [appended raw binary data] 
  </AppendedData>
</VTKFile>

(Yes I know raw binary is technically a violation of xml format but I’ve never worked with xmls prior to this project so the xml police can fight me for it.)