GeomAPI_PointsToBSpline Class Reference

This class is used to approximate a BsplineCurve passing through an array of points, with a given Continuity. Describes functions for building a 3D BSpline curve which approximates a set of points. A PointsToBSpline object provides a framework for: More...

#include <GeomAPI_PointsToBSpline.hxx>

Public Member Functions
	GeomAPI_PointsToBSpline ()
	Constructs an empty approximation algorithm. Use an Init function to define and build the BSpline curve.
	GeomAPI_PointsToBSpline (const TColgp_Array1OfPnt &Points, const Standard_Integer DegMin=3, const Standard_Integer DegMax=8, const GeomAbs_Shape Continuity=GeomAbs_C2, const Standard_Real Tol3D=1.0e-3)
	Approximate a BSpline Curve passing through an array of Point. The resulting BSpline will have the following properties: 1- his degree will be in the range [Degmin,Degmax] 2- his continuity will be at least <Continuity> 3- the distance from the point <Points> to the BSpline will be lower to Tol3D.
	GeomAPI_PointsToBSpline (const TColgp_Array1OfPnt &Points, const Approx_ParametrizationType ParType, const Standard_Integer DegMin=3, const Standard_Integer DegMax=8, const GeomAbs_Shape Continuity=GeomAbs_C2, const Standard_Real Tol3D=1.0e-3)
	Approximate a BSpline Curve passing through an array of Point. The resulting BSpline will have the following properties: 1- his degree will be in the range [Degmin,Degmax] 2- his continuity will be at least <Continuity> 3- the distance from the point <Points> to the BSpline will be lower to Tol3D.
	GeomAPI_PointsToBSpline (const TColgp_Array1OfPnt &Points, const TColStd_Array1OfReal &Parameters, const Standard_Integer DegMin=3, const Standard_Integer DegMax=8, const GeomAbs_Shape Continuity=GeomAbs_C2, const Standard_Real Tol3D=1.0e-3)
	Approximate a BSpline Curve passing through an array of Point, which parameters are given by the array <Parameters>. The resulting BSpline will have the following properties: 1- his degree will be in the range [Degmin,Degmax] 2- his continuity will be at least <Continuity> 3- the distance from the point <Points> to the BSpline will be lower to Tol3D.
	GeomAPI_PointsToBSpline (const TColgp_Array1OfPnt &Points, const Standard_Real Weight1, const Standard_Real Weight2, const Standard_Real Weight3, const Standard_Integer DegMax=8, const GeomAbs_Shape Continuity=GeomAbs_C2, const Standard_Real Tol3D=1.0e-3)
	Approximate a BSpline Curve passing through an array of Point using variational smoothing algorithm, which tries to minimize additional criterium: Weight1*CurveLength + Weight2*Curvature + Weight3*Torsion.
void	Init (const TColgp_Array1OfPnt &Points, const Standard_Integer DegMin=3, const Standard_Integer DegMax=8, const GeomAbs_Shape Continuity=GeomAbs_C2, const Standard_Real Tol3D=1.0e-3)
	Approximate a BSpline Curve passing through an array of Point. The resulting BSpline will have the following properties: 1- his degree will be in the range [Degmin,Degmax] 2- his continuity will be at least <Continuity> 3- the distance from the point <Points> to the BSpline will be lower to Tol3D.
void	Init (const TColgp_Array1OfPnt &Points, const Approx_ParametrizationType ParType, const Standard_Integer DegMin=3, const Standard_Integer DegMax=8, const GeomAbs_Shape Continuity=GeomAbs_C2, const Standard_Real Tol3D=1.0e-3)
	Approximate a BSpline Curve passing through an array of Point. The resulting BSpline will have the following properties: 1- his degree will be in the range [Degmin,Degmax] 2- his continuity will be at least <Continuity> 3- the distance from the point <Points> to the BSpline will be lower to Tol3D.
void	Init (const TColgp_Array1OfPnt &Points, const TColStd_Array1OfReal &Parameters, const Standard_Integer DegMin=3, const Standard_Integer DegMax=8, const GeomAbs_Shape Continuity=GeomAbs_C2, const Standard_Real Tol3D=1.0e-3)
	Approximate a BSpline Curve passing through an array of Point, which parameters are given by the array <Parameters>. The resulting BSpline will have the following properties: 1- his degree will be in the range [Degmin,Degmax] 2- his continuity will be at least <Continuity> 3- the distance from the point <Points> to the BSpline will be lower to Tol3D.
void	Init (const TColgp_Array1OfPnt &Points, const Standard_Real Weight1, const Standard_Real Weight2, const Standard_Real Weight3, const Standard_Integer DegMax=8, const GeomAbs_Shape Continuity=GeomAbs_C2, const Standard_Real Tol3D=1.0e-3)
	Approximate a BSpline Curve passing through an array of Point using variational smoothing algorithm, which tries to minimize additional criterium: Weight1*CurveLength + Weight2*Curvature + Weight3*Torsion.
const Handle< Geom_BSplineCurve > &	Curve () const
	Returns the computed BSpline curve. Raises StdFail_NotDone if the curve is not built.
	operator Handle< Geom_BSplineCurve > () const
Standard_Boolean	IsDone () const

Detailed Description

This class is used to approximate a BsplineCurve passing through an array of points, with a given Continuity. Describes functions for building a 3D BSpline curve which approximates a set of points. A PointsToBSpline object provides a framework for:

• defining the data of the BSpline curve to be built,
• implementing the approximation algorithm, and consulting the results.

Constructor & Destructor Documentation

GeomAPI_PointsToBSpline() [1/5]

GeomAPI_PointsToBSpline::GeomAPI_PointsToBSpline

(

)

Constructs an empty approximation algorithm. Use an Init function to define and build the BSpline curve.

GeomAPI_PointsToBSpline() [2/5]

GeomAPI_PointsToBSpline::GeomAPI_PointsToBSpline	(	const TColgp_Array1OfPnt &	Points,
		const Standard_Integer	DegMin = 3,
		const Standard_Integer	DegMax = 8,
		const GeomAbs_Shape	Continuity = GeomAbs_C2,
		const Standard_Real	Tol3D = 1.0e-3
	)

Approximate a BSpline Curve passing through an array of Point. The resulting BSpline will have the following properties: 1- his degree will be in the range [Degmin,Degmax] 2- his continuity will be at least <Continuity> 3- the distance from the point <Points> to the BSpline will be lower to Tol3D.

GeomAPI_PointsToBSpline() [3/5]

GeomAPI_PointsToBSpline::GeomAPI_PointsToBSpline	(	const TColgp_Array1OfPnt &	Points,
		const Approx_ParametrizationType	ParType,
		const Standard_Integer	DegMin = 3,
		const Standard_Integer	DegMax = 8,
		const GeomAbs_Shape	Continuity = GeomAbs_C2,
		const Standard_Real	Tol3D = 1.0e-3
	)

Approximate a BSpline Curve passing through an array of Point. The resulting BSpline will have the following properties: 1- his degree will be in the range [Degmin,Degmax] 2- his continuity will be at least <Continuity> 3- the distance from the point <Points> to the BSpline will be lower to Tol3D.

GeomAPI_PointsToBSpline() [4/5]

GeomAPI_PointsToBSpline::GeomAPI_PointsToBSpline	(	const TColgp_Array1OfPnt &	Points,
		const TColStd_Array1OfReal &	Parameters,
		const Standard_Integer	DegMin = 3,
		const Standard_Integer	DegMax = 8,
		const GeomAbs_Shape	Continuity = GeomAbs_C2,
		const Standard_Real	Tol3D = 1.0e-3
	)

Approximate a BSpline Curve passing through an array of Point, which parameters are given by the array <Parameters>. The resulting BSpline will have the following properties: 1- his degree will be in the range [Degmin,Degmax] 2- his continuity will be at least <Continuity> 3- the distance from the point <Points> to the BSpline will be lower to Tol3D.

GeomAPI_PointsToBSpline() [5/5]

GeomAPI_PointsToBSpline::GeomAPI_PointsToBSpline	(	const TColgp_Array1OfPnt &	Points,
		const Standard_Real	Weight1,
		const Standard_Real	Weight2,
		const Standard_Real	Weight3,
		const Standard_Integer	DegMax = 8,
		const GeomAbs_Shape	Continuity = GeomAbs_C2,
		const Standard_Real	Tol3D = 1.0e-3
	)

Approximate a BSpline Curve passing through an array of Point using variational smoothing algorithm, which tries to minimize additional criterium: Weight1*CurveLength + Weight2*Curvature + Weight3*Torsion.

Member Function Documentation

Curve()

const Handle< Geom_BSplineCurve > & GeomAPI_PointsToBSpline::Curve

(

)

const

Returns the computed BSpline curve. Raises StdFail_NotDone if the curve is not built.

Init() [1/4]

void GeomAPI_PointsToBSpline::Init	(	const TColgp_Array1OfPnt &	Points,
		const Approx_ParametrizationType	ParType,
		const Standard_Integer	DegMin = 3,
		const Standard_Integer	DegMax = 8,
		const GeomAbs_Shape	Continuity = GeomAbs_C2,
		const Standard_Real	Tol3D = 1.0e-3
	)

Approximate a BSpline Curve passing through an array of Point. The resulting BSpline will have the following properties: 1- his degree will be in the range [Degmin,Degmax] 2- his continuity will be at least <Continuity> 3- the distance from the point <Points> to the BSpline will be lower to Tol3D.

Init() [2/4]

void GeomAPI_PointsToBSpline::Init	(	const TColgp_Array1OfPnt &	Points,
		const Standard_Integer	DegMin = 3,
		const Standard_Integer	DegMax = 8,
		const GeomAbs_Shape	Continuity = GeomAbs_C2,
		const Standard_Real	Tol3D = 1.0e-3
	)

Approximate a BSpline Curve passing through an array of Point. The resulting BSpline will have the following properties: 1- his degree will be in the range [Degmin,Degmax] 2- his continuity will be at least <Continuity> 3- the distance from the point <Points> to the BSpline will be lower to Tol3D.

Init() [3/4]

void GeomAPI_PointsToBSpline::Init	(	const TColgp_Array1OfPnt &	Points,
		const Standard_Real	Weight1,
		const Standard_Real	Weight2,
		const Standard_Real	Weight3,
		const Standard_Integer	DegMax = 8,
		const GeomAbs_Shape	Continuity = GeomAbs_C2,
		const Standard_Real	Tol3D = 1.0e-3
	)

Approximate a BSpline Curve passing through an array of Point using variational smoothing algorithm, which tries to minimize additional criterium: Weight1*CurveLength + Weight2*Curvature + Weight3*Torsion.

Init() [4/4]

void GeomAPI_PointsToBSpline::Init	(	const TColgp_Array1OfPnt &	Points,
		const TColStd_Array1OfReal &	Parameters,
		const Standard_Integer	DegMin = 3,
		const Standard_Integer	DegMax = 8,
		const GeomAbs_Shape	Continuity = GeomAbs_C2,
		const Standard_Real	Tol3D = 1.0e-3
	)

Approximate a BSpline Curve passing through an array of Point, which parameters are given by the array <Parameters>. The resulting BSpline will have the following properties: 1- his degree will be in the range [Degmin,Degmax] 2- his continuity will be at least <Continuity> 3- the distance from the point <Points> to the BSpline will be lower to Tol3D.

IsDone()

Standard_Boolean GeomAPI_PointsToBSpline::IsDone

(

)

const

operator Handle< Geom_BSplineCurve >()

GeomAPI_PointsToBSpline::operator Handle< Geom_BSplineCurve >

(

)

const

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

• GeomAPI_PointsToBSpline.hxx