text: def data2mesh(data):
      """
      Extracts from a given torch_geometric Data object the mesh elements
  
      Parameters
      ----------
      data : Data
          a torch_geometric Data object
  
      Returns
      -------
      (Tensor,LongTensor,Tensor)
          the points set, the topology and the vertex normals tensor
      """
  
      return data.pos, data.face, data.norm
  