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. <br> Use an Init function to define and build the BSpline curve. More...
	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 More...
	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 More...
	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 More...
	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 More...
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 More...
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 More...
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 More...
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 More...
const Handle_Geom_BSplineCurve &	Curve () const
	Returns the computed BSpline curve. <br> Raises StdFail_NotDone if the curve is not built. More...
	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::GeomAPI_PointsToBSpline

(

)

 Constructs an empty approximation algorithm. <br>

Use an Init function to define and build the BSpline curve.

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::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::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::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

const Handle_Geom_BSplineCurve& GeomAPI_PointsToBSpline::Curve

(

)

const

 Returns the computed BSpline curve. <br>

Raises StdFail_NotDone if the curve is not built.

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

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

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

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

Standard_Boolean GeomAPI_PointsToBSpline::IsDone

(

)

const

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