scaling of PoleFigures, implements pf1 * b and a * pf2
overload the * operator, i.e. one can now write x * pf in order to scale the PoleFigure pf by the factor x
scaling of PoleFigures, implements pf1 * b and a * pf2
overload the * operator, i.e. one can now write x * pf in order to scale the PoleFigure pf by the factor x