// Created on: 1991-03-18 // Created by: Remy GILET // 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 _GccAna_Circ2d3Tan_HeaderFile #define _GccAna_Circ2d3Tan_HeaderFile #include #include #include #include #include #include #include #include #include #include #include #include class GccEnt_QualifiedCirc; class GccEnt_QualifiedLin; class gp_Pnt2d; class gp_Circ2d; //! This class implements the algorithms used to //! create 2d circles tangent to 3 points/lines/circles. //! The arguments of all construction methods are : //! - The three qualified elements for the //! tangency constraints (QualifiedCirc, QualifiedLine, //! Points). //! - A real Tolerance. //! Tolerance is only used in the limit cases. //! For example : //! We want to create a circle tangent to an UnqualifiedCirc //! C1 and an UnqualifiedCirc C2 and an UnqualifiedCirc C3 //! with a tolerance Tolerance. //! If we do not use Tolerance it is impossible to find //! a solution in the following case : C2 is inside C1 //! and there is no intersection point between the two //! circles, and C3 is completely outside C1. //! With Tolerance we will find a solution if the //! lowest distance between C1 and C2 is lower than or //! equal Tolerance. class GccAna_Circ2d3Tan { public: DEFINE_STANDARD_ALLOC //! This method implements the algorithms used to //! create 2d circles tangent to 3 circles. //! ConstructionError is raised if there is a problem during //! the computation. Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedCirc& Qualified2, const GccEnt_QualifiedCirc& Qualified3, const Standard_Real Tolerance); //! This method implements the algorithms used to //! create 2d circles tangent to 2 circles and 1 line. //! ConstructionError is raised if there is a problem during //! the computation. Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedCirc& Qualified2, const GccEnt_QualifiedLin& Qualified3, const Standard_Real Tolerance); //! This method implements the algorithms used to //! create 2d circles tangent to 1 circle and 2 lines. //! ConstructionError is raised if there is a problem during //! the computation. Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedLin& Qualified2, const GccEnt_QualifiedLin& Qualified3, const Standard_Real Tolerance); //! This method implements the algorithms used to //! create 2d circles tangent to 3 lines. //! ConstructionError is raised if there is a problem during //! the computation. Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedLin& Qualified1, const GccEnt_QualifiedLin& Qualified2, const GccEnt_QualifiedLin& Qualified3, const Standard_Real Tolerance); //! This method implements the algorithms used to //! create 2d circles tangent to 2 circles and 1 Point. //! ConstructionError is raised if there is a problem during //! the computation. Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedCirc& Qualified2, const gp_Pnt2d& Point3, const Standard_Real Tolerance); //! This method implements the algorithms used to //! create 2d circles tangent to a circle and a line and //! 1 Point. //! ConstructionError is raised if there is a problem during //! the computation. Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedCirc& Qualified1, const GccEnt_QualifiedLin& Qualified2, const gp_Pnt2d& Point3, const Standard_Real Tolerance); //! This method implements the algorithms used to //! create 2d circles tangent to 2 lines and 1 Point. //! ConstructionError is raised if there is a problem during //! the computation. Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedLin& Qualified1, const GccEnt_QualifiedLin& Qualified2, const gp_Pnt2d& Point3, const Standard_Real Tolerance); //! This method implements the algorithms used to //! create 2d circles tangent to a circle and passing //! through 2 Points. //! ConstructionError is raised if there is a problem during //! the computation. Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedCirc& Qualified1, const gp_Pnt2d& Point2, const gp_Pnt2d& Point3, const Standard_Real Tolerance); //! This method implements the algorithms used to //! create 2d circles tangent to a line and passing //! through 2 Points. //! ConstructionError is raised if there is a problem during //! the computation. Standard_EXPORT GccAna_Circ2d3Tan(const GccEnt_QualifiedLin& Qualified1, const gp_Pnt2d& Point2, const gp_Pnt2d& Point3, const Standard_Real Tolerance); //! This method implements the algorithms used to //! create 2d circles passing through 3 Points. //! ConstructionError is raised if there is a problem during //! the computation. Standard_EXPORT GccAna_Circ2d3Tan(const gp_Pnt2d& Point1, const gp_Pnt2d& Point2, const gp_Pnt2d& Point3, const Standard_Real Tolerance); //! This method returns True if the construction //! algorithm succeeded. //! Note: IsDone protects against a failure arising from a //! more internal intersection algorithm, which has //! reached its numeric limits. Standard_EXPORT Standard_Boolean IsDone() const; //! This method returns the number of solutions. //! Raises NotDone if the construction algorithm didn't succeed. Standard_EXPORT Standard_Integer NbSolutions() const; //! Returns the solution number Index and raises OutOfRange //! exception if Index is greater than the number of //! solutions. //! Be careful: the Index is only a way to get all the //! solutions, but is not associated to those outside the //! context of the algorithm-object. //! Raises OutOfRange if Index is greater than //! the number of solutions. //! It raises NotDone if the algorithm failed. Standard_EXPORT gp_Circ2d ThisSolution (const Standard_Integer Index) const; //! Returns the information about the qualifiers of the //! tangency //! arguments concerning the solution number Index. //! It returns the real qualifiers (the qualifiers given to the //! constructor method in case of enclosed, enclosing and outside //! and the qualifiers computedin case of unqualified). Standard_EXPORT void WhichQualifier (const Standard_Integer Index, GccEnt_Position& Qualif1, GccEnt_Position& Qualif2, GccEnt_Position& Qualif3) const; //! Returns information about the tangency point between the //! result number Index and the first argument. //! ParSol is the intrinsic parameter of the point PntSol //! on the solution curv. //! ParArg is the intrinsic parameter of the point PntArg //! on the argument curv. Raises OutOfRange if Index is greater than //! the number of solutions. //! It raises NotDone if the algorithm failed. Standard_EXPORT void Tangency1 (const Standard_Integer Index, Standard_Real& ParSol, Standard_Real& ParArg, gp_Pnt2d& PntSol) const; //! Returns information about the tangency point between the //! result number Index and the first argument. //! ParSol is the intrinsic parameter of the point PntSol //! on the solution curv. //! ParArg is the intrinsic parameter of the point Pntsol //! on the argument curv. Raises OutOfRange if Index is greater than //! the number of solutions. //! It raises NotDone if the algorithm failed. Standard_EXPORT void Tangency2 (const Standard_Integer Index, Standard_Real& ParSol, Standard_Real& ParArg, gp_Pnt2d& PntSol) const; //! Returns information about the tangency point between the //! result number Index and the first argument. //! ParSol is the intrinsic parameter of the point PntSol //! on the solution curv. //! ParArg is the intrinsic parameter of the point Pntsol //! on the argument curv. Raises OutOfRange if Index is greater than //! the number of solutions. //! It raises NotDone if the algorithm failed. Standard_EXPORT void Tangency3 (const Standard_Integer Index, Standard_Real& ParSol, Standard_Real& ParArg, gp_Pnt2d& PntSol) const; //! Returns True if the solution number Index is equal to //! the first argument. Raises OutOfRange if Index is greater than //! the number of solutions. //! It raises NotDone if the algorithm failed. Standard_EXPORT Standard_Boolean IsTheSame1 (const Standard_Integer Index) const; //! Returns True if the solution number Index is equal to //! the second argument. Raises OutOfRange Index is greater than //! the number of solutions. //! It raises NotDone if the algorithm failed. Standard_EXPORT Standard_Boolean IsTheSame2 (const Standard_Integer Index) const; //! Returns True if the solution number Index is equal to //! the third argument. Raises OutOfRange if Index is greater than //! the number of solutions. //! It raises NotDone if the algorithm failed. Standard_EXPORT Standard_Boolean IsTheSame3 (const Standard_Integer Index) const; protected: private: Standard_Boolean WellDone; Standard_Integer NbrSol; TColgp_Array1OfCirc2d cirsol; GccEnt_Array1OfPosition qualifier1; GccEnt_Array1OfPosition qualifier2; GccEnt_Array1OfPosition qualifier3; TColStd_Array1OfInteger TheSame1; TColStd_Array1OfInteger TheSame2; TColStd_Array1OfInteger TheSame3; TColgp_Array1OfPnt2d pnttg1sol; TColgp_Array1OfPnt2d pnttg2sol; TColgp_Array1OfPnt2d pnttg3sol; TColStd_Array1OfReal par1sol; TColStd_Array1OfReal par2sol; TColStd_Array1OfReal par3sol; TColStd_Array1OfReal pararg1; TColStd_Array1OfReal pararg2; TColStd_Array1OfReal pararg3; }; #endif // _GccAna_Circ2d3Tan_HeaderFile