GeomAPI_ProjectPointOnCurve Class Reference

This class implements methods for computing all the orthogonal
projections of a 3D point onto a 3D curve.
More...

#include <GeomAPI_ProjectPointOnCurve.hxx>

Public Member Functions
	GeomAPI_ProjectPointOnCurve ()
	Creates an empty object. Use an <br> Init function for further initialization. More...
	GeomAPI_ProjectPointOnCurve (const gp_Pnt &P, const Handle< Geom_Curve > &Curve)
	Create the projection of a point. More...
	GeomAPI_ProjectPointOnCurve (const gp_Pnt &P, const Handle< Geom_Curve > &Curve, const Quantity_Parameter Umin, const Quantity_Parameter Usup)
	Create the projection of a point. More...
void	Init (const gp_Pnt &P, const Handle< Geom_Curve > &Curve)
	Init the projection of a point. More...
void	Init (const gp_Pnt &P, const Handle< Geom_Curve > &Curve, const Quantity_Parameter Umin, const Quantity_Parameter Usup)
	Init the projection of a point. More...
void	Init (const Handle< Geom_Curve > &Curve, const Quantity_Parameter Umin, const Quantity_Parameter Usup)
	Init the projection of a point. More...
void	Perform (const gp_Pnt &P)
	Performs the projection of a point on the current curve. More...
Standard_Integer	NbPoints () const
	Returns the number of computed <br> orthogonal projection points. Note: if this algorithm fails, NbPoints returns 0. More...
	operator Standard_Integer () const
gp_Pnt	Point (const Standard_Integer Index) const
	Returns the orthogonal projection <br> on the curve. Index is a number of a computed point. Exceptions Standard_OutOfRange if Index is not in the range [ 1,NbPoints ], where NbPoints is the number of solution points. More...
Quantity_Parameter	Parameter (const Standard_Integer Index) const
	Returns the parameter on the curve <br> of the point, which is the orthogonal projection. Index is a number of a computed point. Exceptions Standard_OutOfRange if Index is not in the range [ 1,NbPoints ], where NbPoints is the number of solution points. More...
void	Parameter (const Standard_Integer Index, Quantity_Parameter &U) const
	Returns the parameter on the curve <br> of the point, which is the orthogonal projection. Index is a number of a computed point. Exceptions Standard_OutOfRange if Index is not in the range [ 1,NbPoints ], where NbPoints is the number of solution points.- More...
Quantity_Length	Distance (const Standard_Integer Index) const
	Computes the distance between the <br> point and its orthogonal projection on the curve. Index is a number of a computed point. Exceptions Standard_OutOfRange if Index is not in the range [ 1,NbPoints ], where NbPoints is the number of solution points. More...
gp_Pnt	NearestPoint () const
	Returns the nearest orthogonal <br> projection of the point on the curve. Exceptions: StdFail_NotDone if this algorithm fails. More...
	operator gp_Pnt () const
Quantity_Parameter	LowerDistanceParameter () const
	Returns the parameter on the curve <br> of the nearest orthogonal projection of the point. Exceptions: StdFail_NotDone if this algorithm fails. More...
Quantity_Length	LowerDistance () const
	Computes the distance between the <br> point and its nearest orthogonal projection on the curve. Exceptions: StdFail_NotDone if this algorithm fails. More...
	operator Standard_Real () const
const Extrema_ExtPC &	Extrema () const
	return the algorithmic object from Extrema More...

Detailed Description

This class implements methods for computing all the orthogonal
projections of a 3D point onto a 3D curve.

Constructor & Destructor Documentation

GeomAPI_ProjectPointOnCurve::GeomAPI_ProjectPointOnCurve

(

)

 Creates an empty object. Use an <br>

Init function for further initialization.

GeomAPI_ProjectPointOnCurve::GeomAPI_ProjectPointOnCurve	(	const gp_Pnt &	P,
		const Handle< Geom_Curve > &	Curve
	)

Create the projection of a point.

on a curve
<Curve>

GeomAPI_ProjectPointOnCurve::GeomAPI_ProjectPointOnCurve	(	const gp_Pnt &	P,
		const Handle< Geom_Curve > &	Curve,
		const Quantity_Parameter	Umin,
		const Quantity_Parameter	Usup
	)

Create the projection of a point.

on a curve
<Curve> limited by the two points of parameter Umin and Usup.

Member Function Documentation

Quantity_Length GeomAPI_ProjectPointOnCurve::Distance

(

const Standard_Integer

Index

)

const

 Computes the distance between the <br>

point and its orthogonal projection on the curve. Index is a number of a computed point.
Exceptions
Standard_OutOfRange if Index is not in the range [ 1,NbPoints ], where
NbPoints is the number of solution points.

const Extrema_ExtPC& GeomAPI_ProjectPointOnCurve::Extrema

(

)

const

return the algorithmic object from Extrema

void GeomAPI_ProjectPointOnCurve::Init	(	const gp_Pnt &	P,
		const Handle< Geom_Curve > &	Curve
	)

Init the projection of a point.

on a curve
<Curve>

void GeomAPI_ProjectPointOnCurve::Init	(	const gp_Pnt &	P,
		const Handle< Geom_Curve > &	Curve,
		const Quantity_Parameter	Umin,
		const Quantity_Parameter	Usup
	)

Init the projection of a point.

on a curve
<Curve> limited by the two points of parameter Umin and Usup.

void GeomAPI_ProjectPointOnCurve::Init	(	const Handle< Geom_Curve > &	Curve,
		const Quantity_Parameter	Umin,
		const Quantity_Parameter	Usup
	)

Init the projection of a point.

on a curve
<Curve> limited by the two points of parameter Umin and Usup.

Quantity_Length GeomAPI_ProjectPointOnCurve::LowerDistance

(

)

const

 Computes the distance between the <br>

point and its nearest orthogonal projection on the curve.
Exceptions: StdFail_NotDone if this algorithm fails.

Quantity_Parameter GeomAPI_ProjectPointOnCurve::LowerDistanceParameter

(

)

const

 Returns the parameter on the curve <br>

of the nearest orthogonal projection of the point.
Exceptions: StdFail_NotDone if this algorithm fails.

Standard_Integer GeomAPI_ProjectPointOnCurve::NbPoints

(

)

const

 Returns the number of computed <br>

orthogonal projection points.
Note: if this algorithm fails, NbPoints returns 0.

gp_Pnt GeomAPI_ProjectPointOnCurve::NearestPoint

(

)

const

 Returns the nearest orthogonal <br>

projection of the point on the curve.
Exceptions: StdFail_NotDone if this algorithm fails.

GeomAPI_ProjectPointOnCurve::operator gp_Pnt

(

)

const

GeomAPI_ProjectPointOnCurve::operator Standard_Integer

(

)

const

GeomAPI_ProjectPointOnCurve::operator Standard_Real

(

)

const

Quantity_Parameter GeomAPI_ProjectPointOnCurve::Parameter

(

const Standard_Integer

Index

)

const

 Returns the parameter on the curve <br>

of the point, which is the orthogonal projection. Index is a
number of a computed point.
Exceptions
Standard_OutOfRange if Index is not in the range [ 1,NbPoints ], where
NbPoints is the number of solution points.

void GeomAPI_ProjectPointOnCurve::Parameter	(	const Standard_Integer	Index,
		Quantity_Parameter &	U
	)		const

 Returns the parameter on the curve <br>

of the point, which is the orthogonal projection. Index is a
number of a computed point.
Exceptions
Standard_OutOfRange if Index is not in the range [ 1,NbPoints ], where
NbPoints is the number of solution points.-

void GeomAPI_ProjectPointOnCurve::Perform

(

const gp_Pnt &

P

)

Performs the projection of a point on the current curve.

gp_Pnt GeomAPI_ProjectPointOnCurve::Point

(

const Standard_Integer

Index

)

const

 Returns the orthogonal projection <br>

on the curve. Index is a number of a computed point.
Exceptions
Standard_OutOfRange if Index is not in the range [ 1,NbPoints ], where
NbPoints is the number of solution points.

---

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

• GeomAPI_ProjectPointOnCurve.hxx