// File generated by CPPExt (Value)
//
//                     Copyright (C) 1991 - 2000 by  
//                      Matra Datavision SA.  All rights reserved.
//  
//                     Copyright (C) 2001 - 2004 by
//                     Open CASCADE SA.  All rights reserved.
// 
// This file is part of the Open CASCADE Technology software.
//
// This software may be distributed and/or modified under the terms and
// conditions of the Open CASCADE Public License as defined by Open CASCADE SA
// and appearing in the file LICENSE included in the packaging of this file.
//  
// This software is distributed on an "AS IS" basis, without warranty of any
// kind, and Open CASCADE SA hereby disclaims all such warranties,
// including without limitation, any warranties of merchantability, fitness
// for a particular purpose or non-infringement. Please see the License for
// the specific terms and conditions governing rights and limitations under the
// License.

#ifndef _Geom2dGcc_Lin2dTanObl_HeaderFile
#define _Geom2dGcc_Lin2dTanObl_HeaderFile

#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
#ifndef _Standard_Integer_HeaderFile
#include <Standard_Integer.hxx>
#endif
#ifndef _TColgp_Array1OfLin2d_HeaderFile
#include <TColgp_Array1OfLin2d.hxx>
#endif
#ifndef _GccEnt_Array1OfPosition_HeaderFile
#include <GccEnt_Array1OfPosition.hxx>
#endif
#ifndef _TColgp_Array1OfPnt2d_HeaderFile
#include <TColgp_Array1OfPnt2d.hxx>
#endif
#ifndef _TColStd_Array1OfReal_HeaderFile
#include <TColStd_Array1OfReal.hxx>
#endif
#ifndef _Standard_Real_HeaderFile
#include <Standard_Real.hxx>
#endif
#ifndef _GccEnt_Position_HeaderFile
#include <GccEnt_Position.hxx>
#endif
class GccEnt_BadQualifier;
class StdFail_NotDone;
class GccIter_IsParallel;
class Standard_OutOfRange;
class Geom2dGcc_QualifiedCurve;
class gp_Lin2d;
class gp_Pnt2d;
class Geom2dGcc_MyL2dTanObl;
class Geom2dAdaptor_Curve;


#ifndef _Standard_HeaderFile
#include <Standard.hxx>
#endif
#ifndef _Standard_Macro_HeaderFile
#include <Standard_Macro.hxx>
#endif

//! This class implements the algorithms used to <br>
//!          create 2d line tangent to a curve QualifiedCurv and <br>
//!          doing an angle Angle with a line TheLin. <br>
//!          The angle must be in Radian. <br>
//! Describes functions for building a 2D line making a given <br>
//! angle with a line and tangential to a curve. <br>
//! A Lin2dTanObl object provides a framework for: <br>
//! -   defining the construction of 2D line(s), <br>
//! -   implementing the construction algorithm, and <br>
//! -   consulting the result(s). <br>
class Geom2dGcc_Lin2dTanObl  {

public:

    void* operator new(size_t,void* anAddress) 
      {
        return anAddress;
      }
    void* operator new(size_t size) 
      { 
        return Standard::Allocate(size); 
      }
    void  operator delete(void *anAddress) 
      { 
        if (anAddress) Standard::Free((Standard_Address&)anAddress); 
      }
 // Methods PUBLIC
 // 

//! This class implements the algorithm used to <br>
//!          create 2d line tangent to a curve and doing an <br>
//!          angle Angle with the line TheLin. <br>
//!          Angle must be in Radian. <br>
//!          Tolang is the angular tolerance. <br>
Standard_EXPORT Geom2dGcc_Lin2dTanObl(const Geom2dGcc_QualifiedCurve& Qualified1,const gp_Lin2d& TheLin,const Standard_Real TolAng,const Standard_Real Angle);

//! This class implements the algorithm used to <br>
//!          create 2d line tangent to a curve and doing an <br>
//!          angle Angle with the line TheLin. <br>
//!          Angle must be in Radian. <br>
//!          Param2 is the initial guess on the curve QualifiedCurv. <br>
//!          Tolang is the angular tolerance. <br>
//! Warning <br>
//! An iterative algorithm is used if Qualified1 is more <br>
//! complex than a line or a circle. In such cases, the <br>
//! algorithm constructs only one solution. <br>
//! Exceptions <br>
//! GccEnt_BadQualifier if a qualifier is inconsistent with <br>
//! the argument it qualifies (for example, enclosed for a circle). <br>
Standard_EXPORT Geom2dGcc_Lin2dTanObl(const Geom2dGcc_QualifiedCurve& Qualified1,const gp_Lin2d& TheLin,const Standard_Real TolAng,const Standard_Real Param1,const Standard_Real Angle);

//! Returns true if the construction algorithm does not fail <br>
//! (even if it finds no solution). <br>
//! Note: IsDone protects against a failure arising from a <br>
//! more internal intersection algorithm, which has reached its numeric limits. <br>
Standard_EXPORT   Standard_Boolean IsDone() const;

//! Returns the number of lines, representing solutions computed by this algorithm. <br>
//! Exceptions <br>
//! StdFail_NotDone if the construction fails. <br>
Standard_EXPORT   Standard_Integer NbSolutions() const;

//! Returns a line, representing the solution of index Index <br>
//! computed by this algorithm. <br>
//! Exceptions <br>
//! Standard_OutOfRange if Index is less than zero or <br>
//! greater than the number of solutions computed by this algorithm. <br>
//! StdFail_NotDone if the construction fails. <br>
Standard_EXPORT   gp_Lin2d ThisSolution(const Standard_Integer Index) const;

//! Returns the qualifier Qualif1 of the tangency argument <br>
//! for the solution of index Index computed by this algorithm. <br>
//! The returned qualifier is: <br>
//! -   that specified at the start of construction when the <br>
//!  solutions are defined as enclosing or outside with <br>
//!  respect to the argument, or <br>
//! -   that computed during construction (i.e. enclosing or <br>
//!   outside) when the solutions are defined as unqualified <br>
//!   with respect to the argument, or <br>
//! -   GccEnt_noqualifier if the tangency argument is a point. <br>
//!   Exceptions <br>
//! Standard_OutOfRange if Index is less than zero or <br>
//! greater than the number of solutions computed by this algorithm. <br>
//! StdFail_NotDone if the construction fails. <br>
Standard_EXPORT   void WhichQualifier(const Standard_Integer Index,GccEnt_Position& Qualif1) const;

//! Returns informations about the tangency point between the <br>
//!          result and the first argument. <br>
//!          ParSol is the intrinsic parameter of the point PntSol on <br>
//!          the solution curv. <br>
//!          ParArg is the intrinsic parameter of the point PntSol on <br>
//!          the argument curv. <br>
Standard_EXPORT   void Tangency1(const Standard_Integer Index,Standard_Real& ParSol,Standard_Real& ParArg,gp_Pnt2d& PntSol) const;

//! Returns the point of intersection PntSol between the <br>
//! solution of index Index and the second argument (the line) of this algorithm. <br>
//! ParSol is the parameter of the point PntSol on the <br>
//! solution. ParArg is the parameter of the point PntSol on the second argument (the line). <br>
//! Exceptions <br>
//! StdFail_NotDone if the construction fails. <br>
//! GccIter_IsParallel if the solution and the second <br>
//! argument (the line) are parallel. <br>
//! Standard_OutOfRange if Index is less than zero or <br>
//! greater than the number of solutions computed by this algorithm. <br>
Standard_EXPORT   void Intersection2(const Standard_Integer Index,Standard_Real& ParSol,Standard_Real& ParArg,gp_Pnt2d& PntSol) const;

//! Returns true if the line and the solution are parallel. This <br>
//! is the case when the angle given at the time of <br>
//! construction is equal to 0 or Pi. <br>
//! Exceptions StdFail_NotDone if the construction fails. <br>
Standard_EXPORT   Standard_Boolean IsParallel2() const;





protected:

 // Methods PROTECTED
 // 


 // Fields PROTECTED
 //


private: 

 // Methods PRIVATE
 // 


Standard_EXPORT   Standard_Boolean Add(const Standard_Integer theIndex,const Geom2dGcc_MyL2dTanObl& theLin,const Standard_Real theTol,const Geom2dAdaptor_Curve& theC1) ;


 // Fields PRIVATE
 //
Standard_Boolean WellDone;
Standard_Boolean Paral2;
Standard_Integer NbrSol;
TColgp_Array1OfLin2d linsol;
GccEnt_Array1OfPosition qualifier1;
TColgp_Array1OfPnt2d pnttg1sol;
TColgp_Array1OfPnt2d pntint2sol;
TColStd_Array1OfReal par1sol;
TColStd_Array1OfReal par2sol;
TColStd_Array1OfReal pararg1;
TColStd_Array1OfReal pararg2;


};





// other Inline functions and methods (like "C++: function call" methods)
//


#endif
