Method GetNodeFields

IO/IOSS/vtkIOSSReaderInternal.cxx:2316–2353

}

bool vtkIOSSReaderInternal::GetNodeFields(vtkDataSetAttributes* dsa,
  vtkDataArraySelection* selection, Ioss::Region* region, Ioss::GroupingEntity* group_entity,
  const DatabaseHandle& handle, int timestep, bool read_ioss_ids, bool mergeExodusEntityBlocks)
{
  if (group_entity->type() == Ioss::EntityType::STRUCTUREDBLOCK)
  {
    // CGNS
    // node fields are stored under nested node block. So use that.
    auto sb = dynamic_cast<Ioss::StructuredBlock*>(group_entity);
    auto& nodeBlock = sb->get_node_block();
    if (!this->GetFields(
          dsa, selection, region, &nodeBlock, handle, timestep, /*read_ioss_ids=*/false))
    {
      return false;
    }

    // for STRUCTUREDBLOCK, the node ids are read from the SB itself, and not
    // the nested nodeBlock.
    return read_ioss_ids
      ? this->GetFields(dsa, nullptr, region, sb, handle, timestep, /*read_ioss_ids=*/true)
      : true;
  }
  else
  {
    // Exodus
    const auto& blockname = group_entity->name();
    auto& cache = this->Cache;
    vtkIdTypeArray* vtk_raw_ids_array = !mergeExodusEntityBlocks
      ? vtkIdTypeArray::SafeDownCast(cache.Find(group_entity, "__vtk_mesh_original_pt_ids__"))
      : nullptr;
    const std::string cache_key_suffix = vtk_raw_ids_array != nullptr ? blockname : std::string();

    auto nodeblock = GetNodeBlock(region, "nodeblock_1");

    return this->GetFields(dsa, selection, region, nodeblock, handle, timestep, read_ioss_ids,
      vtk_raw_ids_array, cache_key_suffix);
  }
}

bool vtkIOSSReaderInternal::GenerateFileId(vtkDataSetAttributes* cellData, vtkIdType numberOfCells,
  Ioss::GroupingEntity* group_entity, const DatabaseHandle& handle)