Method WriteDataSet

IO/ParallelXML/vtkXMLCompositeDataSetWriterHelper.cxx:27–67

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//----------------------------------------------------------------------------
std::string vtkXMLCompositeDataSetWriterHelper::WriteDataSet(
  const std::string& path, const std::string& prefix, vtkDataObject* data)
{
  if (!data)
  {
    return {};
  }

  bool isEmpty = true;
  for (int attrType = vtkDataObject::POINT;
       attrType < vtkDataObject::NUMBER_OF_ATTRIBUTE_TYPES && isEmpty; ++attrType)
  {
    isEmpty = (data->GetNumberOfElements(attrType) == 0);
  }

  if (auto* statModel = vtkStatisticalModel::SafeDownCast(data))
  {
    isEmpty &= statModel->IsEmpty();
  }

  if (isEmpty)
  {
    return {};
  }

  auto writer = this->GetWriter(data->GetDataObjectType());
  if (!writer)
  {
    vtkLogF(WARNING, "skipping dataset of unsupported type '%s'.", data->GetClassName());
    return {};
  }

  std::string fname = prefix + "." + writer->GetDefaultFileExtension();
  writer->SetInputDataObject(data);
  writer->SetFileName(path.empty() ? fname.c_str() : (path + "/" + fname).c_str());
  writer->Write();
  writer->SetInputDataObject(nullptr);

  vtkLogF(TRACE, "wrote leaf %s", fname.c_str());
  return fname;
}

//----------------------------------------------------------------------------
vtkXMLWriterBase* vtkXMLCompositeDataSetWriterHelper::GetWriter(int dataType)