Extrema_ExtPS Class Reference

It calculates all the extremum distances
between a point and a surface.
These distances can be minimum or maximum.

#include <Extrema_ExtPS.hxx>

Public Member Functions
void *	operator new (size_t, void *anAddress)
void *	operator new (size_t size)
void	operator delete (void *anAddress)
	Extrema_ExtPS ()
	Extrema_ExtPS (const gp_Pnt &P, const Adaptor3d_Surface &S, const Standard_Real TolU, const Standard_Real TolV)
	It calculates all the distances. NbU and NbV are used to locate the close points to find the zeros. They must be great enough such that if there is N extrema, there will be N extrema between P and the grid. TolU et TolV are used to determine the conditions to stop the iterations; at the iteration number n: (Un - Un-1) < TolU and (Vn - Vn-1) < TolV .
	Extrema_ExtPS (const gp_Pnt &P, const Adaptor3d_Surface &S, const Standard_Real Uinf, const Standard_Real Usup, const Standard_Real Vinf, const Standard_Real Vsup, const Standard_Real TolU, const Standard_Real TolV)
	It calculates all the distances. NbU and NbV are used to locate the close points to find the zeros. They must be great enough such that if there is N extrema, there will be N extrema between P and the grid. TolU et TolV are used to determine the conditions to stop the iterations; at the iteration number n: (Un - Un-1) < TolU and (Vn - Vn-1) < TolV .
void	Initialize (const Adaptor3d_Surface &S, const Standard_Real Uinf, const Standard_Real Usup, const Standard_Real Vinf, const Standard_Real Vsup, const Standard_Real TolU, const Standard_Real TolV)
	Initializes the fields of the algorithm.
void	Perform (const gp_Pnt &P)
	Computes the distances. An exception is raised if the fieds have not been initialized.
Standard_Boolean	IsDone () const
	Returns True if the distances are found.
Standard_Integer	NbExt () const
	Returns the number of extremum distances.
Standard_Real	SquareDistance (const Standard_Integer N) const
	Returns the value of the Nth resulting square distance.
Extrema_POnSurf	Point (const Standard_Integer N) const
	Returns the point of the Nth resulting distance.
void	TrimmedSquareDistances (Standard_Real &dUfVf, Standard_Real &dUfVl, Standard_Real &dUlVf, Standard_Real &dUlVl, gp_Pnt &PUfVf, gp_Pnt &PUfVl, gp_Pnt &PUlVf, gp_Pnt &PUlVl) const
	if the surface is a trimmed surface, dUfVf is a square distance between

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Constructor & Destructor Documentation

Extrema_ExtPS::Extrema_ExtPS

(

)

Extrema_ExtPS::Extrema_ExtPS	(	const gp_Pnt &	P,
		const Adaptor3d_Surface &	S,
		const Standard_Real	TolU,
		const Standard_Real	TolV
	)

Extrema_ExtPS::Extrema_ExtPS	(	const gp_Pnt &	P,
		const Adaptor3d_Surface &	S,
		const Standard_Real	Uinf,
		const Standard_Real	Usup,
		const Standard_Real	Vinf,
		const Standard_Real	Vsup,
		const Standard_Real	TolU,
		const Standard_Real	TolV
	)

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Member Function Documentation

void Extrema_ExtPS::Initialize	(	const Adaptor3d_Surface &	S,
		const Standard_Real	Uinf,
		const Standard_Real	Usup,
		const Standard_Real	Vinf,
		const Standard_Real	Vsup,
		const Standard_Real	TolU,
		const Standard_Real	TolV
	)

Standard_Boolean Extrema_ExtPS::IsDone

(

)

const

Standard_Integer Extrema_ExtPS::NbExt

(

)

const

void Extrema_ExtPS::operator delete

(

void *

anAddress

)

[inline]

void* Extrema_ExtPS::operator new

(

size_t

size

)

[inline]

void* Extrema_ExtPS::operator new	(	size_t	,
		void *	anAddress
	)			[inline]

void Extrema_ExtPS::Perform

(

const gp_Pnt &

P

)

Extrema_POnSurf Extrema_ExtPS::Point

(

const Standard_Integer

N

)

const

Standard_Real Extrema_ExtPS::SquareDistance

(

const Standard_Integer

N

)

const

void Extrema_ExtPS::TrimmedSquareDistances	(	Standard_Real &	dUfVf,
		Standard_Real &	dUfVl,
		Standard_Real &	dUlVf,
		Standard_Real &	dUlVl,
		gp_Pnt &	PUfVf,
		gp_Pnt &	PUfVl,
		gp_Pnt &	PUlVf,
		gp_Pnt &	PUlVl
	)			const

and the point
of parameter FirstUParameter and FirstVParameter <PUfVf>.
dUfVl is a square distance between

and the point
of parameter FirstUParameter and LastVParameter <PUfVl>.
dUlVf is a square distance between

and the point
of parameter LastUParameter and FirstVParameter <PUlVf>.
dUlVl is a square distance between

and the point
of parameter LastUParameter and LastVParameter <PUlVl>.

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

• Extrema_ExtPS.hxx