GccAna_Lin2dTanPar Class Reference

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: More...

#include <GccAna_Lin2dTanPar.hxx>

Public Member Functions
	GccAna_Lin2dTanPar (const gp_Pnt2d &ThePoint, const gp_Lin2d &Lin1)
	This method implements the algorithms used to create a 2d line passing through a point and parallel to another line. More...
	GccAna_Lin2dTanPar (const GccEnt_QualifiedCirc &Qualified1, 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). More...
Standard_Boolean	IsDone () const
	Returns True if the algorithm succeeded. More...
Standard_Integer	NbSolutions () const
	Returns the number of solutions. Raises NotDone if the construction algorithm didn't succeed. More...
gp_Lin2d	ThisSolution (const Standard_Integer Index) 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. More...
void	WhichQualifier (const Standard_Integer Index, GccEnt_Position &Qualif1) 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. More...
void	Tangency1 (const Standard_Integer Index, Standard_Real &ParSol, Standard_Real &ParArg, gp_Pnt2d &Pnt) 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. More...

Detailed Description

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).

Constructor & Destructor Documentation

GccAna_Lin2dTanPar() [1/2]

GccAna_Lin2dTanPar::GccAna_Lin2dTanPar	(	const gp_Pnt2d &	ThePoint,
		const gp_Lin2d &	Lin1
	)

This method implements the algorithms used to create a 2d line passing through a point and parallel to another line.

GccAna_Lin2dTanPar() [2/2]

GccAna_Lin2dTanPar::GccAna_Lin2dTanPar	(	const GccEnt_QualifiedCirc &	Qualified1,
		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).

Member Function Documentation

IsDone()

Standard_Boolean GccAna_Lin2dTanPar::IsDone

(

)

const

Returns True if the algorithm succeeded.

NbSolutions()

Standard_Integer GccAna_Lin2dTanPar::NbSolutions

(

)

const

Returns the number of solutions. Raises NotDone if the construction algorithm didn't succeed.

Tangency1()

void GccAna_Lin2dTanPar::Tangency1	(	const Standard_Integer	Index,
		Standard_Real &	ParSol,
		Standard_Real &	ParArg,
		gp_Pnt2d &	Pnt
	)		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.

ThisSolution()

gp_Lin2d GccAna_Lin2dTanPar::ThisSolution

(

const Standard_Integer

Index

)

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.

WhichQualifier()

void GccAna_Lin2dTanPar::WhichQualifier	(	const Standard_Integer	Index,
		GccEnt_Position &	Qualif1
	)		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.

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The documentation for this class was generated from the following file:

• GccAna_Lin2dTanPar.hxx