code: def marching_cubes(self):
          
          meshed = matrix_to_marching_cubes(matrix=self.matrix,
                                            pitch=self.pitch,
                                            origin=self.origin)
          return meshed
docs: A marching cubes Trimesh representation of the voxels.
  
          No effort was made to clean or smooth the result in any way;
          it is merely the result of applying the scikit-image
          measure.marching_cubes function to self.matrix.
  
          Returns
          ---------
          meshed: Trimesh object representing the current voxel
                          object, as returned by marching cubes algorithm.