Function GetCellsOfType

Common/DataModel/vtkCellGrid.h:245–253

   */
  template <typename CellType>
  const CellType* GetCellsOfType() const
  {
    auto it = this->Cells.find(vtkStringToken(vtk::TypeName<CellType>()).GetId());
    if (it == this->Cells.end())
    {
      return nullptr;
    }
    return static_cast<const CellType*>(it->second.GetPointer());
  }
  template <typename CellType>
  CellType* GetCellsOfType()
  {