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// This file is generated by WOK (CPPExt).
// Please do not edit this file; modify original file instead.
// The copyright and license terms as defined for the original file apply to
// this header file considered to be the "object code" form of the original source.
#ifndef _GccAna_Lin2dTanPar_HeaderFile
#define _GccAna_Lin2dTanPar_HeaderFile
#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Macro.hxx>
#include <Standard_Boolean.hxx>
#include <Standard_Integer.hxx>
#include <TColgp_Array1OfLin2d.hxx>
#include <GccEnt_Array1OfPosition.hxx>
#include <TColgp_Array1OfPnt2d.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <GccEnt_Position.hxx>
#include <Standard_Real.hxx>
class Standard_OutOfRange;
class GccEnt_BadQualifier;
class StdFail_NotDone;
class gp_Pnt2d;
class gp_Lin2d;
class GccEnt_QualifiedCirc;
//! This class implements the algorithms used to create 2d
//! line tangent to a circle or a point and parallel to
//! another line.
//! The solution has the same orientation as the
//! second argument.
//! Describes functions for building a 2D line parallel to a line and:
//! - tangential to a circle, or
//! - passing through a point.
//! A Lin2dTanPar object provides a framework for:
//! - defining the construction of 2D line(s),
//! - implementing the construction algorithm, and consulting the result(s).
class GccAna_Lin2dTanPar
{
public:
DEFINE_STANDARD_ALLOC
//! This method implements the algorithms used to create a 2d
//! line passing through a point and parallel to
//! another line.
Standard_EXPORT GccAna_Lin2dTanPar(const gp_Pnt2d& ThePoint, const gp_Lin2d& Lin1);
//! This method implements the algorithms used to create a 2d
//! line tangent to a circle and parallel to another line.
//! It raises BadQualifier in case of EnclosedCirc.
//! Exceptions
//! GccEnt_BadQualifier if a qualifier is inconsistent with
//! the argument it qualifies (for example, enclosed for a circle).
Standard_EXPORT GccAna_Lin2dTanPar(const GccEnt_QualifiedCirc& Qualified1, const gp_Lin2d& Lin1);
//! Returns True if the algorithm succeeded.
Standard_EXPORT Standard_Boolean IsDone() const;
//! 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 NotDone if the construction algorithm
//! didn't succeed.
//! It raises OutOfRange if Index is greater than the
//! number of solutions.
Standard_EXPORT gp_Lin2d ThisSolution (const Standard_Integer Index) const;
//! Returns the informations 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 computed in case of unqualified).
//! Raises NotDone if the construction algorithm
//! didn't succeed.
//! It raises OutOfRange if Index is greater than the
//! number of solutions.
Standard_EXPORT void WhichQualifier (const Standard_Integer Index, GccEnt_Position& Qualif1) const;
//! Returns informations about the tangency point between the
//! result number Index and the first argument.
//! ParSol is the intrinsic parameter of the point on the
//! solution curv.
//! ParArg is the intrinsic parameter of the point on the
//! argument curv.
//! ParArg is equal 0 when the solution is passing thrue
//! a point. Raises NotDone if the construction algorithm
//! didn't succeed.
//! It raises OutOfRange if Index is greater than the
//! number of solutions.
Standard_EXPORT void Tangency1 (const Standard_Integer Index, Standard_Real& ParSol, Standard_Real& ParArg, gp_Pnt2d& Pnt) const;
protected:
private:
Standard_Boolean WellDone;
Standard_Integer NbrSol;
TColgp_Array1OfLin2d linsol;
GccEnt_Array1OfPosition qualifier1;
TColgp_Array1OfPnt2d pnttg1sol;
TColStd_Array1OfReal par1sol;
TColStd_Array1OfReal pararg1;
};
#endif // _GccAna_Lin2dTanPar_HeaderFile
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