// Created on: 1991-10-10 // Created by: Jean Claude VAUTHIER // Copyright (c) 1991-1999 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 License 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. #ifndef _Convert_HyperbolaToBSplineCurve_HeaderFile #define _Convert_HyperbolaToBSplineCurve_HeaderFile #include #include #include #include #include class gp_Hypr2d; //! This algorithm converts a hyperbola into a rational B-spline curve. //! The hyperbola is an Hypr2d from package gp with the //! parametrization : //! P (U) = //! Loc + (MajorRadius * Cosh(U) * Xdir + MinorRadius * Sinh(U) * Ydir) //! where Loc is the location point of the hyperbola, Xdir and Ydir are //! the normalized directions of the local cartesian coordinate system //! of the hyperbola. //! KeyWords : //! Convert, Hyperbola, BSplineCurve, 2D . class Convert_HyperbolaToBSplineCurve : public Convert_ConicToBSplineCurve { public: DEFINE_STANDARD_ALLOC //! The hyperbola H is limited between the parametric values U1, U2 //! and the equivalent B-spline curve has the same orientation as the //! hyperbola. Standard_EXPORT Convert_HyperbolaToBSplineCurve(const gp_Hypr2d& H, const Standard_Real U1, const Standard_Real U2); protected: private: }; #endif // _Convert_HyperbolaToBSplineCurve_HeaderFile