// Created on: 1992-08-06 // Created by: Laurent BUCHARD // 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 _IntAna_IntConicQuad_HeaderFile #define _IntAna_IntConicQuad_HeaderFile #include #include #include #include #include #include #include class gp_Lin; class IntAna_Quadric; class gp_Circ; class gp_Elips; class gp_Parab; class gp_Hypr; class gp_Pln; //! This class provides the analytic intersection between //! a conic defined as an element of gp (Lin,Circ,Elips, //! Parab,Hypr) and a quadric as defined in the class //! Quadric from IntAna. //! The intersection between a conic and a plane is treated //! as a special case. //! //! The result of the intersection are points (Pnt from //! gp), associated with the parameter on the conic. //! //! A call to an Intersection L:Lin from gp and //! SPH: Sphere from gp can be written either : //! IntAna_IntConicQuad Inter(L,IntAna_Quadric(SPH)) //! or : //! IntAna_IntConicQuad Inter(L,SPH) (it is necessary //! to include IntAna_Quadric.hxx in this case) class IntAna_IntConicQuad { public: DEFINE_STANDARD_ALLOC //! Empty constructor. Standard_EXPORT IntAna_IntConicQuad(); //! Creates the intersection between a line and a quadric. Standard_EXPORT IntAna_IntConicQuad(const gp_Lin& L, const IntAna_Quadric& Q); //! Intersects a line and a quadric. Standard_EXPORT void Perform (const gp_Lin& L, const IntAna_Quadric& Q); //! Creates the intersection between a circle and a quadric. Standard_EXPORT IntAna_IntConicQuad(const gp_Circ& C, const IntAna_Quadric& Q); //! Intersects a circle and a quadric. Standard_EXPORT void Perform (const gp_Circ& C, const IntAna_Quadric& Q); //! Creates the intersection between an ellipse and a quadric. Standard_EXPORT IntAna_IntConicQuad(const gp_Elips& E, const IntAna_Quadric& Q); //! Intersects an ellipse and a quadric. Standard_EXPORT void Perform (const gp_Elips& E, const IntAna_Quadric& Q); //! Creates the intersection between a parabola and a quadric. Standard_EXPORT IntAna_IntConicQuad(const gp_Parab& P, const IntAna_Quadric& Q); //! Intersects a parabola and a quadric. Standard_EXPORT void Perform (const gp_Parab& P, const IntAna_Quadric& Q); //! Creates the intersection between an hyperbola and //! a quadric. Standard_EXPORT IntAna_IntConicQuad(const gp_Hypr& H, const IntAna_Quadric& Q); //! Intersects an hyperbola and a quadric. Standard_EXPORT void Perform (const gp_Hypr& H, const IntAna_Quadric& Q); //! Intersection between a line and a plane. //! Tolang is used to determine if the angle between two //! vectors is null. //! Tol is used to check the distance between line and plane //! on the distance from the origin of the line. Standard_EXPORT IntAna_IntConicQuad(const gp_Lin& L, const gp_Pln& P, const Standard_Real Tolang, const Standard_Real Tol = 0, const Standard_Real Len = 0); //! Intersects a line and a plane. //! Tolang is used to determine if the angle between two //! vectors is null. //! Tol is used to check the distance between line and plane //! on the distance from the origin of the line. Standard_EXPORT void Perform (const gp_Lin& L, const gp_Pln& P, const Standard_Real Tolang, const Standard_Real Tol = 0, const Standard_Real Len = 0); //! Intersection between a circle and a plane. //! Tolang is used to determine if the angle between two //! vectors is null. //! Tol is used to determine if a distance is null. Standard_EXPORT IntAna_IntConicQuad(const gp_Circ& C, const gp_Pln& P, const Standard_Real Tolang, const Standard_Real Tol); //! Intersects a circle and a plane. //! Tolang is used to determine if the angle between two //! vectors is null. //! Tol is used to determine if a distance is null. Standard_EXPORT void Perform (const gp_Circ& C, const gp_Pln& P, const Standard_Real Tolang, const Standard_Real Tol); //! Intersection between an ellipse and a plane. //! Tolang is used to determine if the angle between two //! vectors is null. //! Tol is used to determine if a distance is null. Standard_EXPORT IntAna_IntConicQuad(const gp_Elips& E, const gp_Pln& P, const Standard_Real Tolang, const Standard_Real Tol); //! Intersects an ellipse and a plane. //! Tolang is used to determine if the angle between two //! vectors is null. //! Tol is used to determine if a distance is null. Standard_EXPORT void Perform (const gp_Elips& E, const gp_Pln& P, const Standard_Real Tolang, const Standard_Real Tol); //! Intersection between a parabola and a plane. //! Tolang is used to determine if the angle between two //! vectors is null. Standard_EXPORT IntAna_IntConicQuad(const gp_Parab& Pb, const gp_Pln& P, const Standard_Real Tolang); //! Intersects a parabola and a plane. //! Tolang is used to determine if the angle between two //! vectors is null. Standard_EXPORT void Perform (const gp_Parab& Pb, const gp_Pln& P, const Standard_Real Tolang); //! Intersection between an hyperbola and a plane. //! Tolang is used to determine if the angle between two //! vectors is null. Standard_EXPORT IntAna_IntConicQuad(const gp_Hypr& H, const gp_Pln& P, const Standard_Real Tolang); //! Intersects an hyperbola and a plane. //! Tolang is used to determine if the angle between two //! vectors is null. Standard_EXPORT void Perform (const gp_Hypr& H, const gp_Pln& P, const Standard_Real Tolang); //! Returns TRUE if the creation completed. Standard_Boolean IsDone() const; //! Returns TRUE if the conic is in the quadric. Standard_Boolean IsInQuadric() const; //! Returns TRUE if the line is in a quadric which //! is parallel to the quadric. Standard_Boolean IsParallel() const; //! Returns the number of intersection point. Standard_Integer NbPoints() const; //! Returns the point of range N. const gp_Pnt& Point (const Standard_Integer N) const; //! Returns the parameter on the line of the intersection //! point of range N. Standard_Real ParamOnConic (const Standard_Integer N) const; protected: private: Standard_Boolean done; Standard_Boolean parallel; Standard_Boolean inquadric; Standard_Integer nbpts; gp_Pnt pnts[4]; Standard_Real paramonc[4]; }; #include #endif // _IntAna_IntConicQuad_HeaderFile