Defines a 2d curve by projection of a 3D curve on a plane with an optional perspective transformation. More...

#include <HLRBRep_Curve.hxx>

Public Member Functions
	HLRBRep_Curve ()
	Creates an undefined Curve.

void	Projector (const HLRAlgo_Projector *Proj)

BRepAdaptor_Curve &	Curve ()
	Returns the 3D curve.

void	Curve (const TopoDS_Edge &E)
	Sets the 3D curve to be projected.

const BRepAdaptor_Curve &	GetCurve () const
	Returns the 3D curve.

Standard_Real	Parameter2d (const Standard_Real P3d) const
	Returns the parameter on the 2d curve from the parameter on the 3d curve.

Standard_Real	Parameter3d (const Standard_Real P2d) const
	Returns the parameter on the 3d curve from the parameter on the 2d curve.

Standard_Real	Update (Standard_Real TotMin[16], Standard_Real TotMax[16])
	Update the minmax and the internal data.

Standard_Real	UpdateMinMax (Standard_Real TotMin[16], Standard_Real TotMax[16])
	Update the minmax returns tol for enlarge;.

Standard_Real	Z (const Standard_Real U) const
	Computes the Z coordinate of the point of parameter U on the curve in the viewing coordinate system.

gp_Pnt	Value3D (const Standard_Real U) const
	Computes the 3D point of parameter U on the curve.

void	D0 (const Standard_Real U, gp_Pnt &P) const
	Computes the 3D point of parameter U on the curve.

void	D1 (const Standard_Real U, gp_Pnt &P, gp_Vec &V) const
	Computes the point of parameter U on the curve with its first derivative.

void	Tangent (const Standard_Boolean AtStart, gp_Pnt2d &P, gp_Dir2d &D) const
	Depending on <AtStart> computes the 2D point and tangent on the curve at sart (or at end). If the first derivative is null look after at start (or before at end) with the second derivative.

Standard_Real	FirstParameter () const

Standard_Real	LastParameter () const

GeomAbs_Shape	Continuity () const

Standard_Integer	NbIntervals (const GeomAbs_Shape S) const
	If necessary, breaks the curve in intervals of continuity ~~. And returns the number of intervals.~~

void	Intervals (TColStd_Array1OfReal &T, const GeomAbs_Shape S) const
	Stores in <T> the parameters bounding the intervals of continuity .

Standard_Boolean	IsClosed () const

Standard_Boolean	IsPeriodic () const

Standard_Real	Period () const

gp_Pnt2d	Value (const Standard_Real U) const
	Computes the point of parameter U on the curve.

void	D0 (const Standard_Real U, gp_Pnt2d &P) const
	Computes the point of parameter U on the curve.

void	D1 (const Standard_Real U, gp_Pnt2d &P, gp_Vec2d &V) const
	Computes the point of parameter U on the curve with its first derivative. Raised if the continuity of the current interval is not C1.

void	D2 (const Standard_Real U, gp_Pnt2d &P, gp_Vec2d &V1, gp_Vec2d &V2) const
	Raised if the continuity of the current interval is not C2.

void	D3 (const Standard_Real U, gp_Pnt2d &P, gp_Vec2d &V1, gp_Vec2d &V2, gp_Vec2d &V3) const
	Returns the point P of parameter U, the first, the second and the third derivative. Raised if the continuity of the current interval is not C3.

gp_Vec2d	DN (const Standard_Real U, const Standard_Integer N) const
	The returned vector gives the value of the derivative for the order of derivation N. Raised if the continuity of the current interval is not CN. Raised if N < 1.

Standard_Real	Resolution (const Standard_Real R3d) const
	Returns the parametric resolution corresponding to the real space resolution <R3d>.

GeomAbs_CurveType	GetType () const
	Returns the type of the curve in the current interval : Line, Circle, Ellipse, Hyperbola, Parabola, BezierCurve, BSplineCurve, OtherCurve.

gp_Lin2d	Line () const

gp_Circ2d	Circle () const

gp_Elips2d	Ellipse () const

gp_Hypr2d	Hyperbola () const

gp_Parab2d	Parabola () const

Standard_Boolean	IsRational () const

Standard_Integer	Degree () const

Standard_Integer	NbPoles () const

void	Poles (TColgp_Array1OfPnt2d &TP) const

void	Poles (const Handle< Geom_BSplineCurve > &aCurve, TColgp_Array1OfPnt2d &TP) const

void	PolesAndWeights (TColgp_Array1OfPnt2d &TP, TColStd_Array1OfReal &TW) const

void	PolesAndWeights (const Handle< Geom_BSplineCurve > &aCurve, TColgp_Array1OfPnt2d &TP, TColStd_Array1OfReal &TW) const

Standard_Integer	NbKnots () const

void	Knots (TColStd_Array1OfReal &kn) const

void	Multiplicities (TColStd_Array1OfInteger &mu) const

Detailed Description

Defines a 2d curve by projection of a 3D curve on a plane with an optional perspective transformation.

Constructor & Destructor Documentation

◆ HLRBRep_Curve()

HLRBRep_Curve::HLRBRep_Curve ( )

Creates an undefined Curve.

Member Function Documentation

◆ Circle()

gp_Circ2d HLRBRep_Curve::Circle ( ) const

◆ Continuity()

GeomAbs_Shape HLRBRep_Curve::Continuity ( ) const

◆ Curve() [1/2]

BRepAdaptor_Curve & HLRBRep_Curve::Curve ( )

Returns the 3D curve.

◆ Curve() [2/2]

void HLRBRep_Curve::Curve ( const TopoDS_Edge & E )

Sets the 3D curve to be projected.

◆ D0() [1/2]

void HLRBRep_Curve::D0	(	const Standard_Real	U,
		gp_Pnt &	P ) const

Computes the 3D point of parameter U on the curve.

◆ D0() [2/2]

void HLRBRep_Curve::D0	(	const Standard_Real	U,
		gp_Pnt2d &	P ) const

Computes the point of parameter U on the curve.

◆ D1() [1/2]

void HLRBRep_Curve::D1	(	const Standard_Real	U,
		gp_Pnt &	P,
		gp_Vec &	V ) const

Computes the point of parameter U on the curve with its first derivative.

◆ D1() [2/2]

void HLRBRep_Curve::D1	(	const Standard_Real	U,
		gp_Pnt2d &	P,
		gp_Vec2d &	V ) const

Computes the point of parameter U on the curve with its first derivative. Raised if the continuity of the current interval is not C1.

◆ D2()

void HLRBRep_Curve::D2	(	const Standard_Real	U,
		gp_Pnt2d &	P,
		gp_Vec2d &	V1,
		gp_Vec2d &	V2 ) const

Raised if the continuity of the current interval is not C2.

◆ D3()

void HLRBRep_Curve::D3	(	const Standard_Real	U,
		gp_Pnt2d &	P,
		gp_Vec2d &	V1,
		gp_Vec2d &	V2,
		gp_Vec2d &	V3 ) const

Returns the point P of parameter U, the first, the second and the third derivative. Raised if the continuity of the current interval is not C3.

◆ Degree()

Standard_Integer HLRBRep_Curve::Degree ( ) const

◆ DN()

gp_Vec2d HLRBRep_Curve::DN	(	const Standard_Real	U,
		const Standard_Integer	N ) const

The returned vector gives the value of the derivative for the order of derivation N. Raised if the continuity of the current interval is not CN. Raised if N < 1.

◆ Ellipse()

gp_Elips2d HLRBRep_Curve::Ellipse ( ) const

◆ FirstParameter()

Standard_Real HLRBRep_Curve::FirstParameter ( ) const

◆ GetCurve()

const BRepAdaptor_Curve & HLRBRep_Curve::GetCurve ( ) const

Returns the 3D curve.

◆ GetType()

GeomAbs_CurveType HLRBRep_Curve::GetType ( ) const

Returns the type of the curve in the current interval : Line, Circle, Ellipse, Hyperbola, Parabola, BezierCurve, BSplineCurve, OtherCurve.

◆ Hyperbola()

gp_Hypr2d HLRBRep_Curve::Hyperbola ( ) const

◆ Intervals()

void HLRBRep_Curve::Intervals	(	TColStd_Array1OfReal &	T,
		const GeomAbs_Shape	S ) const

Stores in <T> the parameters bounding the intervals of continuity .

The array must provide enough room to accommodate for the parameters. i.e. T.Length() > NbIntervals()

◆ IsClosed()

Standard_Boolean HLRBRep_Curve::IsClosed ( ) const

◆ IsPeriodic()

Standard_Boolean HLRBRep_Curve::IsPeriodic ( ) const

◆ IsRational()

Standard_Boolean HLRBRep_Curve::IsRational ( ) const

◆ Knots()

void HLRBRep_Curve::Knots ( TColStd_Array1OfReal & kn ) const

◆ LastParameter()

Standard_Real HLRBRep_Curve::LastParameter ( ) const

◆ Line()

gp_Lin2d HLRBRep_Curve::Line ( ) const

◆ Multiplicities()

void HLRBRep_Curve::Multiplicities ( TColStd_Array1OfInteger & mu ) const

◆ NbIntervals()

Standard_Integer HLRBRep_Curve::NbIntervals ( const GeomAbs_Shape S ) const

If necessary, breaks the curve in intervals of continuity ~~. And returns the number of intervals.~~

◆ NbKnots()

Standard_Integer HLRBRep_Curve::NbKnots ( ) const

◆ NbPoles()

Standard_Integer HLRBRep_Curve::NbPoles ( ) const

◆ Parabola()

gp_Parab2d HLRBRep_Curve::Parabola ( ) const

◆ Parameter2d()

Standard_Real HLRBRep_Curve::Parameter2d ( const Standard_Real P3d ) const

Returns the parameter on the 2d curve from the parameter on the 3d curve.

◆ Parameter3d()

Standard_Real HLRBRep_Curve::Parameter3d ( const Standard_Real P2d ) const

Returns the parameter on the 3d curve from the parameter on the 2d curve.

◆ Period()

Standard_Real HLRBRep_Curve::Period ( ) const

◆ Poles() [1/2]

void HLRBRep_Curve::Poles	(	const Handle< Geom_BSplineCurve > &	aCurve,
		TColgp_Array1OfPnt2d &	TP ) const

◆ Poles() [2/2]

void HLRBRep_Curve::Poles ( TColgp_Array1OfPnt2d & TP ) const

◆ PolesAndWeights() [1/2]

void HLRBRep_Curve::PolesAndWeights	(	const Handle< Geom_BSplineCurve > &	aCurve,
		TColgp_Array1OfPnt2d &	TP,
		TColStd_Array1OfReal &	TW ) const

◆ PolesAndWeights() [2/2]

void HLRBRep_Curve::PolesAndWeights	(	TColgp_Array1OfPnt2d &	TP,
		TColStd_Array1OfReal &	TW ) const

◆ Projector()

void HLRBRep_Curve::Projector ( const HLRAlgo_Projector * Proj )

inline

◆ Resolution()

Standard_Real HLRBRep_Curve::Resolution ( const Standard_Real R3d ) const

Returns the parametric resolution corresponding to the real space resolution <R3d>.

◆ Tangent()

void HLRBRep_Curve::Tangent	(	const Standard_Boolean	AtStart,
		gp_Pnt2d &	P,
		gp_Dir2d &	D ) const

Depending on <AtStart> computes the 2D point and tangent on the curve at sart (or at end). If the first derivative is null look after at start (or before at end) with the second derivative.

◆ Update()

Standard_Real HLRBRep_Curve::Update	(	Standard_Real	TotMin[16],
		Standard_Real	TotMax[16] )

Update the minmax and the internal data.

◆ UpdateMinMax()

Standard_Real HLRBRep_Curve::UpdateMinMax	(	Standard_Real	TotMin[16],
		Standard_Real	TotMax[16] )

Update the minmax returns tol for enlarge;.

◆ Value()

gp_Pnt2d HLRBRep_Curve::Value ( const Standard_Real U ) const