137          gp_Vec2d Vect11;  in Value()  local
141          InitDerivative(X,Point1,Point2,Vect11,Vect21,Vect12,Vect22);  in Value()
142          Standard_Real NormeD11 = Vect11.Magnitude();  in Value()
146          Fval(1) = TheDirection.Crossed(Vect11)/(NormeD11*squaredir);  in Value()
147          Fval(2) = Vect11.Crossed(Vect21)/(NormeD11*NormeD21);  in Value()
156                gp_Vec2d Vect11;  in Derivatives()  local
160                InitDerivative(X,Point1,Point2,Vect11,Vect21,Vect12,Vect22);  in Derivatives()
161                Standard_Real NormeD11 = Vect11.Magnitude();  in Derivatives()
164                gp_Vec2d V2V1(Vect11.XY(),Vect21.XY());  in Derivatives()
166                Vect11.XY();  in Derivatives()
172                  (TheDirection.Crossed(Vect11)*NormeD11*NormeD11*Vect11.Dot(TheDirection))/  in Derivatives()
174                Deriv(1,2) = Vect21.Crossed(Vect11)/(NormeD11*squaredir)-  in Derivatives()
175                  (TheDirection.Crossed(Vect11)*NormeD11*NormeD11*Vect21.Dot(TheDirection))/  in Derivatives()
178                  (Vect11.Crossed(Vect21))*(Vect12.Dot(Vect11))*NormeD21*NormeD21/  in Derivatives()
180                Deriv(2,2)=(Vect11.Crossed(Vect22))/(NormeD11*NormeD21)-  in Derivatives()
181                  (Vect11.Crossed(Vect21))*(Vect22.Dot(Vect21))*NormeD11*NormeD11/  in Derivatives()
192           gp_Vec2d Vect11;  in Values()  local
196           InitDerivative(X,Point1,Point2,Vect11,Vect21,Vect12,Vect22);  in Values()
197           Standard_Real NormeD11 = Vect11.Magnitude();  in Values()
200           gp_Vec2d V2V1(Vect11.XY(),Vect21.XY());  in Values()
202           Vect11.XY();  in Values()
207           Fval(1) = TheDirection.Crossed(Vect11)/(NormeD11*squaredir);  in Values()
208           Fval(2) = Vect11.Crossed(Vect21)/(NormeD11*NormeD21);  in Values()
210             (TheDirection.Crossed(Vect11)*NormeD11*NormeD11*Vect11.Dot(TheDirection))/  in Values()
212           Deriv(1,2) = Vect21.Crossed(Vect11)/(NormeD11*squaredir)-  in Values()
213             (TheDirection.Crossed(Vect11)*NormeD11*NormeD11*Vect21.Dot(TheDirection))/  in Values()
216             (Vect11.Crossed(Vect21))*(Vect12.Dot(Vect11))*NormeD21*NormeD21/  in Values()
218           Deriv(2,2)=(Vect11.Crossed(Vect22))/(NormeD11*NormeD21)-  in Values()
219             (Vect11.Crossed(Vect21))*(Vect22.Dot(Vect21))*NormeD11*NormeD11/  in Values()