GccAna_Circ2d2TanOn Class Reference

Describes functions for building a 2D circle. More...

#include <GccAna_Circ2d2TanOn.hxx>

Public Member Functions
	GccAna_Circ2d2TanOn (const GccEnt_QualifiedCirc &Qualified1, const GccEnt_QualifiedCirc &Qualified2, const gp_Lin2d &OnLine, const Standard_Real Tolerance)
	This method implements the algorithms used to create 2d circles TANgent to two 2d circles and having the center ON a 2d line. More...
	GccAna_Circ2d2TanOn (const GccEnt_QualifiedCirc &Qualified1, const GccEnt_QualifiedLin &Qualified2, const gp_Lin2d &OnLine, const Standard_Real Tolerance)
	This method implements the algorithms used to create 2d circles TANgent to a 2d circle and a 2d line having the center ON a 2d line. More...
	GccAna_Circ2d2TanOn (const GccEnt_QualifiedLin &Qualified1, const GccEnt_QualifiedLin &Qualified2, const gp_Lin2d &OnLine, const Standard_Real Tolerance)
	This method implements the algorithms used to create 2d circles TANgent to two 2d lines having the center ON a 2d line. More...
	GccAna_Circ2d2TanOn (const GccEnt_QualifiedCirc &Qualified1, const gp_Pnt2d &Point2, const gp_Lin2d &OnLine, const Standard_Real Tolerance)
	This method implements the algorithms used to create 2d circles TANgent to a 2d circle and a point having the center ON a 2d line. More...
	GccAna_Circ2d2TanOn (const GccEnt_QualifiedLin &Qualified1, const gp_Pnt2d &Point2, const gp_Lin2d &OnLine, const Standard_Real Tolerance)
	This method implements the algorithms used to create 2d circles TANgent to a 2d line and a point having the center ON a 2d line. More...
	GccAna_Circ2d2TanOn (const gp_Pnt2d &Point1, const gp_Pnt2d &Point2, const gp_Lin2d &OnLine, const Standard_Real Tolerance)
	This method implements the algorithms used to create 2d circles TANgent to two points having the center ON a 2d line. More...
	GccAna_Circ2d2TanOn (const GccEnt_QualifiedCirc &Qualified1, const GccEnt_QualifiedCirc &Qualified2, const gp_Circ2d &OnCirc, const Standard_Real Tolerance)
	This method implements the algorithms used to create 2d circles TANgent to two 2d circles and having the center ON a 2d circle. More...
	GccAna_Circ2d2TanOn (const GccEnt_QualifiedCirc &Qualified1, const GccEnt_QualifiedLin &Qualified2, const gp_Circ2d &OnCirc, const Standard_Real Tolerance)
	This method implements the algorithms used to create 2d circles TANgent to a circle and a line having the center ON a 2d circle. More...
	GccAna_Circ2d2TanOn (const GccEnt_QualifiedCirc &Qualified1, const gp_Pnt2d &Point2, const gp_Circ2d &OnCirc, const Standard_Real Tolerance)
	This method implements the algorithms used to create 2d circles TANgent to a circle and a point having the center ON a 2d circle. More...
	GccAna_Circ2d2TanOn (const GccEnt_QualifiedLin &Qualified1, const GccEnt_QualifiedLin &Qualified2, const gp_Circ2d &OnCirc, const Standard_Real Tolerance)
	This method implements the algorithms used to create 2d circles TANgent to two 2d lines having the center ON a 2d circle. More...
	GccAna_Circ2d2TanOn (const GccEnt_QualifiedLin &Qualified1, const gp_Pnt2d &Point2, const gp_Circ2d &OnCirc, const Standard_Real Tolerance)
	This method implements the algorithms used to create 2d circles TANgent to a line and a point having the center ON a 2d circle. More...
	GccAna_Circ2d2TanOn (const gp_Pnt2d &Point1, const gp_Pnt2d &Point2, const gp_Circ2d &OnCirc, const Standard_Real Tolerance)
	This method implements the algorithms used to create 2d circles TANgent to two points having the center ON a 2d circle. More...
Standard_Boolean	IsDone () const
	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. More...
Standard_Integer	NbSolutions () const
	Returns the number of circles, representing solutions computed by this algorithm. Exceptions StdFail_NotDone if the construction fails. More...
gp_Circ2d	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. 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. More...
void	WhichQualifier (const Standard_Integer Index, GccEnt_Position &Qualif1, GccEnt_Position &Qualif2) const
	Returns the qualifiers Qualif1 and Qualif2 of the tangency arguments for the solution of index Index computed by this algorithm. The returned qualifiers are: More...
void	Tangency1 (const Standard_Integer Index, Standard_Real &ParSol, Standard_Real &ParArg, gp_Pnt2d &PntSol) const
	Returns the informations 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 ParArg is the intrinsic parameter of the point PntSol on the first argument. Raises OutOfRange if Index is greater than the number of solutions and NotDone if IsDone returns false. More...
void	Tangency2 (const Standard_Integer Index, Standard_Real &ParSol, Standard_Real &ParArg, gp_Pnt2d &PntSol) const
	Returns the informations about the tangency point between the result number Index and the second argument. ParSol is the intrinsic parameter of the point PntSol on the solution. ParArg is the intrinsic parameter of the point PntSol on the second argument. Raises OutOfRange if Index is greater than the number of solutions and NotDone if IsDone returns false. More...
void	CenterOn3 (const Standard_Integer Index, Standard_Real &ParArg, gp_Pnt2d &PntArg) const
	Returns the informations about the center (on the curv) of the result number Index and the third argument. ParArg is the intrinsic parameter of the point PntArg on the third argument. 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. More...
Standard_Boolean	IsTheSame1 (const Standard_Integer Index) const
	True if the solution and the first argument are the same (2 circles). If R1 is the radius of the first argument and Rsol the radius of the solution and dist the distance between the two centers, we concider the two circles are identical if R1+dist-Rsol is less than Tolerance. False in the other cases. Raises OutOfRange if Index is greater than the number of solutions and NotDone if IsDone returns false. More...
Standard_Boolean	IsTheSame2 (const Standard_Integer Index) const
	True if the solution and the second argument are the same (2 circles). If R2 is the radius of the second argument and Rsol the radius of the solution and dist the distance between the two centers, we concider the two circles are identical if R2+dist-Rsol is less than Tolerance. False in the other cases. Raises OutOfRange if Index is greater than the number of solutions and NotDone if IsDone returns false. More...

Detailed Description

Describes functions for building a 2D circle.

• tangential to 2 curves, or
• tangential to a curve and passing through a point, or
• passing through 2 points, and with its center on a curve. For these analytic algorithms, curves are circles or lines. A Circ2d2TanOn object provides a framework for:
• defining the construction of 2D circles(s),
• implementing the construction algorithm, and
• consulting the result(s).

Constructor & Destructor Documentation

GccAna_Circ2d2TanOn() [1/12]

GccAna_Circ2d2TanOn::GccAna_Circ2d2TanOn	(	const GccEnt_QualifiedCirc &	Qualified1,
		const GccEnt_QualifiedCirc &	Qualified2,
		const gp_Lin2d &	OnLine,
		const Standard_Real	Tolerance
	)

This method implements the algorithms used to create 2d circles TANgent to two 2d circles and having the center ON a 2d line.

GccAna_Circ2d2TanOn() [2/12]

GccAna_Circ2d2TanOn::GccAna_Circ2d2TanOn	(	const GccEnt_QualifiedCirc &	Qualified1,
		const GccEnt_QualifiedLin &	Qualified2,
		const gp_Lin2d &	OnLine,
		const Standard_Real	Tolerance
	)

This method implements the algorithms used to create 2d circles TANgent to a 2d circle and a 2d line having the center ON a 2d line.

GccAna_Circ2d2TanOn() [3/12]

GccAna_Circ2d2TanOn::GccAna_Circ2d2TanOn	(	const GccEnt_QualifiedLin &	Qualified1,
		const GccEnt_QualifiedLin &	Qualified2,
		const gp_Lin2d &	OnLine,
		const Standard_Real	Tolerance
	)

This method implements the algorithms used to create 2d circles TANgent to two 2d lines having the center ON a 2d line.

GccAna_Circ2d2TanOn() [4/12]

GccAna_Circ2d2TanOn::GccAna_Circ2d2TanOn	(	const GccEnt_QualifiedCirc &	Qualified1,
		const gp_Pnt2d &	Point2,
		const gp_Lin2d &	OnLine,
		const Standard_Real	Tolerance
	)

This method implements the algorithms used to create 2d circles TANgent to a 2d circle and a point having the center ON a 2d line.

GccAna_Circ2d2TanOn() [5/12]

GccAna_Circ2d2TanOn::GccAna_Circ2d2TanOn	(	const GccEnt_QualifiedLin &	Qualified1,
		const gp_Pnt2d &	Point2,
		const gp_Lin2d &	OnLine,
		const Standard_Real	Tolerance
	)

This method implements the algorithms used to create 2d circles TANgent to a 2d line and a point having the center ON a 2d line.

GccAna_Circ2d2TanOn() [6/12]

GccAna_Circ2d2TanOn::GccAna_Circ2d2TanOn	(	const gp_Pnt2d &	Point1,
		const gp_Pnt2d &	Point2,
		const gp_Lin2d &	OnLine,
		const Standard_Real	Tolerance
	)

This method implements the algorithms used to create 2d circles TANgent to two points having the center ON a 2d line.

GccAna_Circ2d2TanOn() [7/12]

GccAna_Circ2d2TanOn::GccAna_Circ2d2TanOn	(	const GccEnt_QualifiedCirc &	Qualified1,
		const GccEnt_QualifiedCirc &	Qualified2,
		const gp_Circ2d &	OnCirc,
		const Standard_Real	Tolerance
	)

This method implements the algorithms used to create 2d circles TANgent to two 2d circles and having the center ON a 2d circle.

GccAna_Circ2d2TanOn() [8/12]

GccAna_Circ2d2TanOn::GccAna_Circ2d2TanOn	(	const GccEnt_QualifiedCirc &	Qualified1,
		const GccEnt_QualifiedLin &	Qualified2,
		const gp_Circ2d &	OnCirc,
		const Standard_Real	Tolerance
	)

This method implements the algorithms used to create 2d circles TANgent to a circle and a line having the center ON a 2d circle.

GccAna_Circ2d2TanOn() [9/12]

GccAna_Circ2d2TanOn::GccAna_Circ2d2TanOn	(	const GccEnt_QualifiedCirc &	Qualified1,
		const gp_Pnt2d &	Point2,
		const gp_Circ2d &	OnCirc,
		const Standard_Real	Tolerance
	)

This method implements the algorithms used to create 2d circles TANgent to a circle and a point having the center ON a 2d circle.

GccAna_Circ2d2TanOn() [10/12]

GccAna_Circ2d2TanOn::GccAna_Circ2d2TanOn	(	const GccEnt_QualifiedLin &	Qualified1,
		const GccEnt_QualifiedLin &	Qualified2,
		const gp_Circ2d &	OnCirc,
		const Standard_Real	Tolerance
	)

This method implements the algorithms used to create 2d circles TANgent to two 2d lines having the center ON a 2d circle.

GccAna_Circ2d2TanOn() [11/12]

GccAna_Circ2d2TanOn::GccAna_Circ2d2TanOn	(	const GccEnt_QualifiedLin &	Qualified1,
		const gp_Pnt2d &	Point2,
		const gp_Circ2d &	OnCirc,
		const Standard_Real	Tolerance
	)

This method implements the algorithms used to create 2d circles TANgent to a line and a point having the center ON a 2d circle.

GccAna_Circ2d2TanOn() [12/12]

GccAna_Circ2d2TanOn::GccAna_Circ2d2TanOn	(	const gp_Pnt2d &	Point1,
		const gp_Pnt2d &	Point2,
		const gp_Circ2d &	OnCirc,
		const Standard_Real	Tolerance
	)

This method implements the algorithms used to create 2d circles TANgent to two points having the center ON a 2d circle.

Member Function Documentation

CenterOn3()

void GccAna_Circ2d2TanOn::CenterOn3	(	const Standard_Integer	Index,
		Standard_Real &	ParArg,
		gp_Pnt2d &	PntArg
	)		const

Returns the informations about the center (on the curv) of the result number Index and the third argument. ParArg is the intrinsic parameter of the point PntArg on the third argument. 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.

IsDone()

Standard_Boolean GccAna_Circ2d2TanOn::IsDone

(

)

const

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.

IsTheSame1()

Standard_Boolean GccAna_Circ2d2TanOn::IsTheSame1

(

const Standard_Integer

Index

)

const

True if the solution and the first argument are the same (2 circles). If R1 is the radius of the first argument and Rsol the radius of the solution and dist the distance between the two centers, we concider the two circles are identical if R1+dist-Rsol is less than Tolerance. False in the other cases. Raises OutOfRange if Index is greater than the number of solutions and NotDone if IsDone returns false.

IsTheSame2()

Standard_Boolean GccAna_Circ2d2TanOn::IsTheSame2

(

const Standard_Integer

Index

)

const

True if the solution and the second argument are the same (2 circles). If R2 is the radius of the second argument and Rsol the radius of the solution and dist the distance between the two centers, we concider the two circles are identical if R2+dist-Rsol is less than Tolerance. False in the other cases. Raises OutOfRange if Index is greater than the number of solutions and NotDone if IsDone returns false.

NbSolutions()

Standard_Integer GccAna_Circ2d2TanOn::NbSolutions

(

)

const

Returns the number of circles, representing solutions computed by this algorithm. Exceptions StdFail_NotDone if the construction fails.

Tangency1()

void GccAna_Circ2d2TanOn::Tangency1	(	const Standard_Integer	Index,
		Standard_Real &	ParSol,
		Standard_Real &	ParArg,
		gp_Pnt2d &	PntSol
	)		const

Returns the informations 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 ParArg is the intrinsic parameter of the point PntSol on the first argument. Raises OutOfRange if Index is greater than the number of solutions and NotDone if IsDone returns false.

Tangency2()

void GccAna_Circ2d2TanOn::Tangency2	(	const Standard_Integer	Index,
		Standard_Real &	ParSol,
		Standard_Real &	ParArg,
		gp_Pnt2d &	PntSol
	)		const

Returns the informations about the tangency point between the result number Index and the second argument. ParSol is the intrinsic parameter of the point PntSol on the solution. ParArg is the intrinsic parameter of the point PntSol on the second argument. Raises OutOfRange if Index is greater than the number of solutions and NotDone if IsDone returns false.

ThisSolution()

gp_Circ2d GccAna_Circ2d2TanOn::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. 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.

WhichQualifier()

void GccAna_Circ2d2TanOn::WhichQualifier	(	const Standard_Integer	Index,
		GccEnt_Position &	Qualif1,
		GccEnt_Position &	Qualif2
	)		const

Returns the qualifiers Qualif1 and Qualif2 of the tangency arguments for the solution of index Index computed by this algorithm. The returned qualifiers are:

• those specified at the start of construction when the solutions are defined as enclosed, enclosing or outside with respect to the arguments, or
• those computed during construction (i.e. enclosed, enclosing or outside) when the solutions are defined as unqualified with respect to the arguments, 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.

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

• GccAna_Circ2d2TanOn.hxx