-- Created on: 1992-03-26 -- Created by: Herve LEGRAND -- Copyright (c) 1992-1999 Matra Datavision -- Copyright (c) 1999-2014 OPEN CASCADE SAS -- -- This file is part of Open CASCADE Technology software library. -- -- This library is free software; you can redistribute it and / or modify it -- under the terms of the GNU Lesser General Public version 2.1 as published -- by the Free Software Foundation, with special exception defined in the file -- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT -- distribution for complete text of the license and disclaimer of any warranty. -- -- Alternatively, this file may be used under the terms of Open CASCADE -- commercial license or contractual agreement. class Curve2dTool from Geom2dLProp uses Vec2d from gp, Pnt2d from gp, Dir2d from gp, Curve from Geom2d is Value(myclass; C : Curve from Geom2d; U : Real; P : out Pnt2d); ---Purpose: Computes the point

of parameter on the curve . D1 (myclass; C : Curve from Geom2d; U : Real; P : out Pnt2d; V1 : out Vec2d); ---Purpose: Computes the point

and first derivative of -- parameter on the curve . D2 (myclass; C : Curve from Geom2d; U : Real; P : out Pnt2d; V1, V2 : out Vec2d); ---Purpose: Computes the point

, the first derivative and second -- derivative of parameter on the curve . D3 (myclass; C : Curve from Geom2d; U : Real; P : out Pnt2d; V1, V2, V3 : out Vec2d); ---Purpose: Computes the point

, the first derivative , the -- second derivative and third derivative of -- parameter on the curve . Continuity(myclass; C : Curve from Geom2d) returns Integer; ---Purpose: returns the order of continuity of the curve . -- returns 1 : first derivative only is computable -- returns 2 : first and second derivative only are computable. -- returns 3 : first, second and third are computable. FirstParameter(myclass; C : Curve from Geom2d) returns Real; ---Purpose: returns the first parameter bound of the curve. -- LastParameter(myclass; C : Curve from Geom2d) returns Real; ---Purpose: returns the last parameter bound of the curve. -- FirstParameter must be less than LastParameter. end Curve2dTool;