code: def addScalarBar3D(
          self,
          pos=(0, 0, 0),
          normal=(0, 0, 1),
          sx=0.1,
          sy=2,
          nlabels=9,
          ncols=256,
          cmap=None,
          c="k",
          alpha=1,
      ):
          
          # book it, it will be created by Plotter.show() later
          self.scalarbar = [pos, normal, sx, sy, nlabels, ncols, cmap, c, alpha]
          return self
docs: Draw a 3D scalar bar to actor.
  
          .. hint:: |mesh_coloring| |mesh_coloring.py|_