Method AppendFieldDataArrays

IO/HDF/vtkHDFWriter.cxx:1245–1365

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//------------------------------------------------------------------------------
bool vtkHDFWriter::AppendFieldDataArrays(hid_t baseGroup, vtkDataObject* input, unsigned int partId)
{
  vtkFieldData* attributes = input->GetFieldData();
  if (attributes == nullptr)
  {
    return true;
  }

  int nArrays = attributes->GetNumberOfArrays();
  if (nArrays <= 0)
  {
    return true;
  }

  // Create the group corresponding to field data
  std::string groupName = "FieldData";
  const std::string offsetsGroupName = groupName + "Offsets";
  std::string fieldDataSizeName = "FieldDataSizes";

  if (this->CurrentTimeIndex == 0 && partId == 0)
  {
    vtkHDFUtilities::MakeObjectNameValid(groupName);
    vtkHDF::ScopedH5GHandle group{ H5Gcreate(
      baseGroup, groupName.c_str(), H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT) };
    if (group == H5I_INVALID_HID)
    {
      vtkErrorMacro(<< "Could not create " << groupName
                    << " group when creating: " << this->FileName);
      return false;
    }

    // Create the offsets and the sizes group in the steps group for temporal data
    if (this->IsTemporal)
    {
      vtkHDF::ScopedH5GHandle offsetsGroup = H5Gcreate(this->Impl->GetStepsGroup(baseGroup),
        offsetsGroupName.c_str(), H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
      if (offsetsGroup == H5I_INVALID_HID)
      {
        vtkErrorMacro(<< "Could not create " << offsetsGroupName
                      << " group when creating: " << this->FileName);
        return false;
      }

      vtkHDF::ScopedH5GHandle sizesGroup = H5Gcreate(this->Impl->GetStepsGroup(baseGroup),
        fieldDataSizeName.c_str(), H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
      if (offsetsGroup == H5I_INVALID_HID)
      {
        vtkErrorMacro(<< "Could not create " << fieldDataSizeName
                      << " group when creating: " << this->FileName);
        return false;
      }
    }
  }

  vtkHDF::ScopedH5GHandle fieldDataGroup = H5Gopen(baseGroup, groupName.c_str(), H5P_DEFAULT);

  // Add the arrays data in the group
  for (int iArray = 0; iArray < nArrays; ++iArray)