+//=================================================================================================
+GeomAPI_Circ::GeomAPI_Circ(const GeomCurvePtr& theCurve)
+{
+ Handle(Geom_Curve) aCurve = theCurve->impl<Handle(Geom_Curve)>();
+ Handle(Geom_Circle) aCirc = Handle(Geom_Circle)::DownCast(aCurve);
+ if (aCirc.IsNull())
+ throw Standard_ConstructionError("GeomAPI_Circ: Curve is not a circle");
+ setImpl(new gp_Circ(aCirc->Circ()));
+}
+