10.9.4 curve2Cone



  \begin{texgraph}[name=curve2Cone,export=pgf]
  Marges(0,0,0,0), size(7.5), NbPoints:=100,
  C:=curve2Cone( [cos(2*t)*exp(i*t)*5,-3],
                 -pi,pi,[0,0],-1),
  FillOpacity:=0.7,
  DrawFlatFacet(C,[color:=darkseagreen])
  \end{texgraph}

 PIC



curve2Cone