// Created on: 1992-08-26 // Created by: Remi GILET // 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 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 _gce_MakeHypr2d_HeaderFile #define _gce_MakeHypr2d_HeaderFile #include #include #include #include #include #include #include class StdFail_NotDone; class gp_Pnt2d; class gp_Ax2d; class gp_Ax22d; class gp_Hypr2d; //! This class implements the following algorithms used to //! create a 2d Hyperbola from gp. //! * Create a 2d Hyperbola from its center and two points: //! one on its axis of symmetry giving the major radius, the //! other giving the value of the small radius. //! * Create a 2d Hyperbola from its major axis and its major //! radius and its minor radius. //! //! ^YAxis //! | //! FirstConjugateBranch //! | //! Other | Main //! --------------------- C ------------------------------>XAxis //! Branch | Branch //! | //! | //! SecondConjugateBranch //! | //! //! An axis placement (one axis) is associated with the hyperbola. //! This axis is the "XAxis" or major axis of the hyperbola. It is //! the symmetry axis of the main branch of hyperbola. //! The "YAxis" is normal to this axis and pass throught its location //! point. It is the minor axis. //! //! The major radius is the distance between the Location point //! of the hyperbola C and the vertex of the Main Branch (or the //! Other branch). The minor radius is the distance between the //! Location point of the hyperbola C and the vertex of the First //! (or Second) Conjugate branch. //! The major radius can be lower than the minor radius. class gce_MakeHypr2d : public gce_Root { public: DEFINE_STANDARD_ALLOC //! Constructs a hyperbola //! centered on the point Center, where: //! - the major axis of the hyperbola is defined by Center and point S1, //! - the major radius is the distance between Center and S1, and //! - the minor radius is the distance between point S2 and the major axis. Standard_EXPORT gce_MakeHypr2d(const gp_Pnt2d& S1, const gp_Pnt2d& S2, const gp_Pnt2d& Center); //! Constructs a hyperbola with major and minor radii MajorRadius and //! MinorRadius, where: //! - the center of the hyperbola is the origin of the axis MajorAxis, and //! - the major axis is defined by MajorAxis if Sense //! is true, or the opposite axis to MajorAxis if Sense is false; or //! - centered on the origin of the coordinate system //! A, with major and minor radii MajorRadius and //! MinorRadius, where its major axis is the "X Axis" //! of A (A is the local coordinate system of the hyperbola). Standard_EXPORT gce_MakeHypr2d(const gp_Ax2d& MajorAxis, const Standard_Real MajorRadius, const Standard_Real MinorRadius, const Standard_Boolean Sense); //! Creates a Hypr2d centered on the origin of the coordinate system //! A, with major and minor radii MajorRadius and //! MinorRadius, where its major axis is the "X Axis" //! of A (A is the local coordinate system of the hyperbola). Standard_EXPORT gce_MakeHypr2d(const gp_Ax22d& A, const Standard_Real MajorRadius, const Standard_Real MinorRadius); //! Returns the constructed hyperbola. //! Exceptions StdFail_NotDone if no hyperbola is constructed. Standard_EXPORT const gp_Hypr2d& Value() const; Standard_EXPORT const gp_Hypr2d& Operator() const; Standard_EXPORT operator gp_Hypr2d() const; protected: private: gp_Hypr2d TheHypr2d; }; #endif // _gce_MakeHypr2d_HeaderFile