nbFaces = _downArray[vtkType]->getNumberOfUpCells(downId);
const int *upCells = _downArray[vtkType]->getUpCells(downId);
const unsigned char* upTypes = _downArray[vtkType]->getUpTypes(downId);
nbFaces = _downArray[vtkType]->getNumberOfUpCells(downId);
const int *upCells = _downArray[vtkType]->getUpCells(downId);
const unsigned char* upTypes = _downArray[vtkType]->getUpTypes(downId);