Method WriteHeader

IO/Legacy/vtkDataWriter.cxx:205–248

------------------------------------------------------------------------------ Write the header of a vtk data file. Returns 0 if error.

//------------------------------------------------------------------------------
// Write the header of a vtk data file. Returns 0 if error.
int vtkDataWriter::WriteHeader(ostream* fp)
{
  vtkDebugMacro(<< "Writing header...");

  // This code will update as the compile time
  // major and minor versions are updated.
  int majVersion, minVersion;
  if (this->FileVersion == VTK_LEGACY_READER_VERSION_4_2)
  {
    majVersion = 4;
    minVersion = 2;
  }
  else if (this->FileVersion == VTK_LEGACY_READER_VERSION_5_1)
  {
    majVersion = 5;
    minVersion = 1;
  }
  else // future?
  {
    majVersion = vtkLegacyReaderMajorVersion;
    minVersion = vtkLegacyReaderMinorVersion;
  }

  *fp << "# vtk DataFile Version " << majVersion << "." << minVersion << "\n";
  *fp << this->Header << "\n";

  if (this->FileType == VTK_ASCII)
  {
    *fp << "ASCII\n";
  }
  else
  {
    *fp << "BINARY\n";
  }

  fp->flush();
  if (fp->fail())
  {
    this->SetErrorCode(vtkErrorCode::OutOfDiskSpaceError);
    return 0;
  }

  return 1;
}

//------------------------------------------------------------------------------
// Write the cell data (e.g., scalars, vectors, ...) of a vtk dataset.