8.1.11 Label



  \begin{texgraph}[name=Label,export=pgf,
                preload="PolyedresII.mac"]
  view(-5,5,-5,5),Marges(0,0,0,0),
  size(7.5,0),
  C:=Cube(Origin, M(3,3,0)),
  S:=Sommets(C), Point3D(S),
  DrawPoly(C,0), k:=0,
  for Z in S by 2 do
   Inc(k,1),
   Label(Proj3D(Z)+
    if k>4 then 0.5*i else -0.5*i fi,
       ["$S_",k,"$"])
  od
  \end{texgraph}

 PIC



point label