//function : ParametersOfNearestPointOnSurface
//purpose :
//=======================================================================
-static Standard_Boolean ParametersOfNearestPointOnSurface(const Extrema_ExtPS theExtr,
+static Standard_Boolean ParametersOfNearestPointOnSurface(const Extrema_ExtPS& theExtr,
Standard_Real& theU,
Standard_Real& theV)
{