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occt/src/Geom2dGcc/Geom2dGcc_Lin2dTanObl.hxx
abv 42cf5bc1ca 0024002: Overall code and build procedure refactoring -- automatic
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl":
- WOK-generated header files from inc and sources from drv are moved to src
- CDL files removed
- All packages are converted to nocdlpack
2015-07-12 07:42:38 +03:00

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6.7 KiB
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// Created on: 1992-10-20
// 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 _Geom2dGcc_Lin2dTanObl_HeaderFile
#define _Geom2dGcc_Lin2dTanObl_HeaderFile
#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Handle.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 <Standard_Real.hxx>
#include <GccEnt_Position.hxx>
class GccEnt_BadQualifier;
class StdFail_NotDone;
class Geom2dGcc_IsParallel;
class Standard_OutOfRange;
class Geom2dGcc_QualifiedCurve;
class gp_Lin2d;
class gp_Pnt2d;
class Geom2dGcc_Lin2dTanOblIter;
class Geom2dAdaptor_Curve;
//! This class implements the algorithms used to
//! create 2d line tangent to a curve QualifiedCurv and
//! doing an angle Angle with a line TheLin.
//! The angle must be in Radian.
//! Describes functions for building a 2D line making a given
//! angle with a line and tangential to a curve.
//! A Lin2dTanObl object provides a framework for:
//! - defining the construction of 2D line(s),
//! - implementing the construction algorithm, and
//! - consulting the result(s).
class Geom2dGcc_Lin2dTanObl
{
public:
DEFINE_STANDARD_ALLOC
//! This class implements the algorithm used to
//! create 2d line tangent to a curve and doing an
//! angle Angle with the line TheLin.
//! Angle must be in Radian.
//! Tolang is the angular tolerance.
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
//! create 2d line tangent to a curve and doing an
//! angle Angle with the line TheLin.
//! Angle must be in Radian.
//! Param2 is the initial guess on the curve QualifiedCurv.
//! Tolang is the angular tolerance.
//! Warning
//! An iterative algorithm is used if Qualified1 is more
//! complex than a line or a circle. In such cases, the
//! algorithm constructs only one solution.
//! Exceptions
//! GccEnt_BadQualifier if a qualifier is inconsistent with
//! the argument it qualifies (for example, enclosed for a circle).
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
//! (even if it finds no solution).
//! 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;
//! Returns the number of lines, representing solutions computed by this algorithm.
//! Exceptions
//! StdFail_NotDone if the construction fails.
Standard_EXPORT Standard_Integer NbSolutions() const;
//! Returns a line, representing the solution of index Index
//! computed by this algorithm.
//! Exceptions
//! Standard_OutOfRange if Index is less than zero or
//! greater than the number of solutions computed by this algorithm.
//! StdFail_NotDone if the construction fails.
Standard_EXPORT gp_Lin2d ThisSolution (const Standard_Integer Index) const;
//! Returns the qualifier Qualif1 of the tangency argument
//! for the solution of index Index computed by this algorithm.
//! The returned qualifier is:
//! - that specified at the start of construction when the
//! solutions are defined as enclosing or outside with
//! respect to the argument, or
//! - that computed during construction (i.e. enclosing or
//! outside) when the solutions are defined as unqualified
//! with respect to the argument, or
//! - GccEnt_noqualifier if the tangency argument is a point.
//! Exceptions
//! Standard_OutOfRange if Index is less than zero or
//! greater than the number of solutions computed by this algorithm.
//! StdFail_NotDone if the construction fails.
Standard_EXPORT void WhichQualifier (const Standard_Integer Index, GccEnt_Position& Qualif1) const;
//! Returns informations about the tangency point between the
//! result 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.
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
//! solution of index Index and the second argument (the line) of this algorithm.
//! ParSol is the parameter of the point PntSol on the
//! solution. ParArg is the parameter of the point PntSol on the second argument (the line).
//! Exceptions
//! StdFail_NotDone if the construction fails.
//! Geom2dGcc_IsParallel if the solution and the second
//! argument (the line) are parallel.
//! Standard_OutOfRange if Index is less than zero or
//! greater than the number of solutions computed by this algorithm.
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
//! is the case when the angle given at the time of
//! construction is equal to 0 or Pi.
//! Exceptions StdFail_NotDone if the construction fails.
Standard_EXPORT Standard_Boolean IsParallel2() const;
protected:
private:
Standard_EXPORT Standard_Boolean Add (const Standard_Integer theIndex, const Geom2dGcc_Lin2dTanOblIter& theLin, const Standard_Real theTol, const Geom2dAdaptor_Curve& theC1);
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;
};
#endif // _Geom2dGcc_Lin2dTanObl_HeaderFile