Extrema_LocateExtPC2d Class Reference

#include <Extrema_LocateExtPC2d.hxx>

Public Member Functions
	Extrema_LocateExtPC2d ()
	Extrema_LocateExtPC2d (const gp_Pnt2d &P, const Adaptor2d_Curve2d &C, const Standard_Real U0, const Standard_Real TolF)
	Calculates the distance with a close point. The close point is defined by the parameter value U0. The function F(u)=distance(P,C(u)) has an extremum when g(u)=dF/du=0. The algorithm searches a zero near the close point. TolF is used to decide to stop the iterations. At the nth iteration, the criteria is: abs(Un - Un-1) < TolF.
	Extrema_LocateExtPC2d (const gp_Pnt2d &P, const Adaptor2d_Curve2d &C, const Standard_Real U0, const Standard_Real Umin, const Standard_Real Usup, const Standard_Real TolF)
	Calculates the distance with a close point. The close point is defined by the parameter value U0. The function F(u)=distance(P,C(u)) has an extremum when g(u)=dF/du=0. The algorithm searches a zero near the close point. Zeros are searched between Umin et Usup. TolF is used to decide to stop the iterations. At the nth iteration, the criteria is: abs(Un - Un-1) < TolF.
void	Initialize (const Adaptor2d_Curve2d &C, const Standard_Real Umin, const Standard_Real Usup, const Standard_Real TolF)
	sets the fields of the algorithm.
void	Perform (const gp_Pnt2d &P, const Standard_Real U0)
Standard_Boolean	IsDone () const
	Returns True if the distance is found.
Standard_Real	SquareDistance () const
	Returns the value of the extremum square distance.
Standard_Boolean	IsMin () const
	Returns True if the extremum distance is a minimum.
const Extrema_POnCurv2d &	Point () const
	Returns the point of the extremum distance.

Constructor & Destructor Documentation

Extrema_LocateExtPC2d() [1/3]

Extrema_LocateExtPC2d::Extrema_LocateExtPC2d

(

)

Extrema_LocateExtPC2d() [2/3]

Extrema_LocateExtPC2d::Extrema_LocateExtPC2d	(	const gp_Pnt2d &	P,
		const Adaptor2d_Curve2d &	C,
		const Standard_Real	U0,
		const Standard_Real	TolF )

Calculates the distance with a close point. The close point is defined by the parameter value U0. The function F(u)=distance(P,C(u)) has an extremum when g(u)=dF/du=0. The algorithm searches a zero near the close point. TolF is used to decide to stop the iterations. At the nth iteration, the criteria is: abs(Un - Un-1) < TolF.

Extrema_LocateExtPC2d() [3/3]

Extrema_LocateExtPC2d::Extrema_LocateExtPC2d	(	const gp_Pnt2d &	P,
		const Adaptor2d_Curve2d &	C,
		const Standard_Real	U0,
		const Standard_Real	Umin,
		const Standard_Real	Usup,
		const Standard_Real	TolF )

Calculates the distance with a close point. The close point is defined by the parameter value U0. The function F(u)=distance(P,C(u)) has an extremum when g(u)=dF/du=0. The algorithm searches a zero near the close point. Zeros are searched between Umin et Usup. TolF is used to decide to stop the iterations. At the nth iteration, the criteria is: abs(Un - Un-1) < TolF.

Member Function Documentation

Initialize()

void Extrema_LocateExtPC2d::Initialize	(	const Adaptor2d_Curve2d &	C,
		const Standard_Real	Umin,
		const Standard_Real	Usup,
		const Standard_Real	TolF )

sets the fields of the algorithm.

IsDone()

Standard_Boolean Extrema_LocateExtPC2d::IsDone

(

)

const

Returns True if the distance is found.

IsMin()

Standard_Boolean Extrema_LocateExtPC2d::IsMin

(

)

const

Returns True if the extremum distance is a minimum.

Perform()

void Extrema_LocateExtPC2d::Perform	(	const gp_Pnt2d &	P,
		const Standard_Real	U0 )

Point()

const Extrema_POnCurv2d & Extrema_LocateExtPC2d::Point

(

)

const

Returns the point of the extremum distance.

SquareDistance()

Standard_Real Extrema_LocateExtPC2d::SquareDistance

(

)

const

Returns the value of the extremum square distance.

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

• Extrema_LocateExtPC2d.hxx