Root class for 3D curves on which geometric algorithms work. An adapted curve is an interface between the services provided by a curve and those required of the curve by algorithms which use it. Two derived concrete classes are provided: More...

#include <Adaptor3d_Curve.hxx>

Inheritance diagram for Adaptor3d_Curve:

[legend]

Public Member Functions
virtual occ::handle< Adaptor3d_Curve >	ShallowCopy () const
	Shallow copy of adaptor.

virtual double	FirstParameter () const

virtual double	LastParameter () const

virtual GeomAbs_Shape	Continuity () const

virtual int	NbIntervals (const GeomAbs_Shape S) const
	Returns the number of intervals for continuity ~~. May be one if Continuity(me) >=~~

virtual void	Intervals (NCollection_Array1< double > &T, const GeomAbs_Shape S) const
	Stores in <T> the parameters bounding the intervals of continuity .

virtual occ::handle< Adaptor3d_Curve >	Trim (const double First, const double Last, const double Tol) const
	Returns a curve equivalent of <me> between parameters <First> and <Last>. <Tol> is used to test for 3d points confusion. If <First> >= <Last>

virtual bool	IsClosed () const

virtual bool	IsPeriodic () const

virtual double	Period () const

gp_Pnt	Value (const double theU) const
	Computes the point of parameter U on the curve.

void	D0 (const double theU, gp_Pnt &theP) const
	Computes the point of parameter U on the curve.

void	D1 (const double theU, gp_Pnt &theP, gp_Vec &theV) 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 double theU, gp_Pnt &theP, gp_Vec &theV1, gp_Vec &theV2) const
	Returns the point P of parameter U, the first and second derivatives V1 and V2. Raised if the continuity of the current interval is not C2.

void	D3 (const double theU, gp_Pnt &theP, gp_Vec &theV1, gp_Vec &theV2, gp_Vec &theV3) 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_Vec	DN (const double theU, const int theN) 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.

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

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

virtual gp_Lin	Line () const

virtual gp_Circ	Circle () const

virtual gp_Elips	Ellipse () const

virtual gp_Hypr	Hyperbola () const

virtual gp_Parab	Parabola () const

virtual int	Degree () const

virtual bool	IsRational () const

virtual int	NbPoles () const

virtual int	NbKnots () const

virtual occ::handle< Geom_BezierCurve >	Bezier () const

virtual occ::handle< Geom_BSplineCurve >	BSpline () const

virtual occ::handle< Geom_OffsetCurve >	OffsetCurve () const

virtual gp_Pnt	EvalD0 (const double theU) const
	Computes the point of parameter U on the curve. Raises an exception on failure.

virtual Geom_Curve::ResD1	EvalD1 (const double theU) const
	Computes the point and first derivative at parameter U. Raises an exception on failure.

virtual Geom_Curve::ResD2	EvalD2 (const double theU) const
	Computes the point and first two derivatives at parameter U. Raises an exception on failure.

virtual Geom_Curve::ResD3	EvalD3 (const double theU) const
	Computes the point and first three derivatives at parameter U. Raises an exception on failure.

virtual gp_Vec	EvalDN (const double theU, const int theN) const
	Computes the Nth derivative at parameter U. Raises an exception on failure.

	~Adaptor3d_Curve () override

Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor.

	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing.

Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter.

virtual	~Standard_Transient ()=default
	Destructor must be virtual.

virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object.

bool	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type.

bool	IsInstance (const char *const theTypeName) const
	Returns a true value if this is an instance of TypeName.

bool	IsKind (const opencascade::handle< Standard_Type > &theType) const
	Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism.

bool	IsKind (const char *const theTypeName) const
	Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism.

Standard_Transient *	This () const
	Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero.

int	GetRefCount () const noexcept
	Get the reference counter of this object.

void	IncrementRefCounter () noexcept
	Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations.

int	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement.

virtual void	Delete () const
	Memory deallocator for transient classes.

Additional Inherited Members
Public Types inherited from Standard_Transient
typedef void	base_type
	Returns a type descriptor about this object.

Static Public Member Functions inherited from Standard_Transient
static constexpr const char *	get_type_name ()
	Returns a type descriptor about this object.

static const opencascade::handle< Standard_Type > &	get_type_descriptor ()
	Returns type descriptor of Standard_Transient class.

Detailed Description

Root class for 3D curves on which geometric algorithms work. An adapted curve is an interface between the services provided by a curve and those required of the curve by algorithms which use it. Two derived concrete classes are provided:

GeomAdaptor_Curve for a curve from the Geom package
Adaptor3d_CurveOnSurface for a curve lying on a surface from the Geom package.

Polynomial coefficients of BSpline curves used for their evaluation are cached for better performance. Therefore these evaluations are not thread-safe and parallel evaluations need to be prevented.

Constructor & Destructor Documentation

◆ ~Adaptor3d_Curve()

Adaptor3d_Curve::~Adaptor3d_Curve ( )

override

Member Function Documentation

◆ Bezier()

virtual occ::handle< Geom_BezierCurve > Adaptor3d_Curve::Bezier ( ) const

virtual

Reimplemented in ChFiDS_ElSpine, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ BSpline()

virtual occ::handle< Geom_BSplineCurve > Adaptor3d_Curve::BSpline ( ) const

virtual

Reimplemented in ChFiDS_ElSpine, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ Circle()

virtual gp_Circ Adaptor3d_Curve::Circle ( ) const

virtual

Reimplemented in ChFiDS_ElSpine, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ Continuity()

virtual GeomAbs_Shape Adaptor3d_Curve::Continuity ( ) const

virtual

Reimplemented in ChFiDS_ElSpine, HelixGeom_HelixCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ D0()

void Adaptor3d_Curve::D0	(	const double	theU,
		gp_Pnt &	theP ) const

inline

Computes the point of parameter U on the curve.

◆ D1()

void Adaptor3d_Curve::D1	(	const double	theU,
		gp_Pnt &	theP,
		gp_Vec &	theV ) const

inline

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 Adaptor3d_Curve::D2	(	const double	theU,
		gp_Pnt &	theP,
		gp_Vec &	theV1,
		gp_Vec &	theV2 ) const

inline

Returns the point P of parameter U, the first and second derivatives V1 and V2. Raised if the continuity of the current interval is not C2.

◆ D3()

void Adaptor3d_Curve::D3	(	const double	theU,
		gp_Pnt &	theP,
		gp_Vec &	theV1,
		gp_Vec &	theV2,
		gp_Vec &	theV3 ) const

inline

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()

virtual int Adaptor3d_Curve::Degree ( ) const

virtual

Reimplemented in BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ DN()

gp_Vec Adaptor3d_Curve::DN	(	const double	theU,
		const int	theN ) const

inline

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()

virtual gp_Elips Adaptor3d_Curve::Ellipse ( ) const

virtual

Reimplemented in ChFiDS_ElSpine, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ EvalD0()

virtual gp_Pnt Adaptor3d_Curve::EvalD0 ( const double theU ) const

virtual

Computes the point of parameter U on the curve. Raises an exception on failure.

Reimplemented in ChFiDS_ElSpine, GeomFill_SnglrFunc, HelixGeom_HelixCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ EvalD1()

virtual Geom_Curve::ResD1 Adaptor3d_Curve::EvalD1 ( const double theU ) const

virtual

Computes the point and first derivative at parameter U. Raises an exception on failure.

Reimplemented in ChFiDS_ElSpine, GeomFill_SnglrFunc, HelixGeom_HelixCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ EvalD2()

virtual Geom_Curve::ResD2 Adaptor3d_Curve::EvalD2 ( const double theU ) const

virtual

Computes the point and first two derivatives at parameter U. Raises an exception on failure.

Reimplemented in ChFiDS_ElSpine, GeomFill_SnglrFunc, HelixGeom_HelixCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ EvalD3()

virtual Geom_Curve::ResD3 Adaptor3d_Curve::EvalD3 ( const double theU ) const

virtual

Computes the point and first three derivatives at parameter U. Raises an exception on failure.

Reimplemented in ChFiDS_ElSpine, GeomFill_SnglrFunc, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ EvalDN()

virtual gp_Vec Adaptor3d_Curve::EvalDN	(	const double	theU,
		const int	theN ) const

virtual

Computes the Nth derivative at parameter U. Raises an exception on failure.

Reimplemented in GeomFill_SnglrFunc, HelixGeom_HelixCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ FirstParameter()

virtual double Adaptor3d_Curve::FirstParameter ( ) const

virtual

Reimplemented in ChFiDS_ElSpine, GeomFill_SnglrFunc, HelixGeom_HelixCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ GetType()

virtual GeomAbs_CurveType Adaptor3d_Curve::GetType ( ) const

virtual

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

Reimplemented in ChFiDS_ElSpine, GeomFill_SnglrFunc, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ Hyperbola()

virtual gp_Hypr Adaptor3d_Curve::Hyperbola ( ) const

virtual

Reimplemented in ChFiDS_ElSpine, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ Intervals()

virtual void Adaptor3d_Curve::Intervals	(	NCollection_Array1< double > &	T,
		const GeomAbs_Shape	S ) const

virtual

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()

Reimplemented in ChFiDS_ElSpine, GeomFill_SnglrFunc, HelixGeom_HelixCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, ProjLib_ProjectOnPlane, and GeomAdaptor_TransformedCurve.

◆ IsClosed()

virtual bool Adaptor3d_Curve::IsClosed ( ) const

virtual

Reimplemented in HelixGeom_HelixCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ IsPeriodic()

virtual bool Adaptor3d_Curve::IsPeriodic ( ) const

virtual

Reimplemented in ChFiDS_ElSpine, GeomFill_SnglrFunc, HelixGeom_HelixCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ IsRational()

virtual bool Adaptor3d_Curve::IsRational ( ) const

virtual

Reimplemented in BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ LastParameter()

virtual double Adaptor3d_Curve::LastParameter ( ) const

virtual

Reimplemented in ChFiDS_ElSpine, GeomFill_SnglrFunc, HelixGeom_HelixCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ Line()

virtual gp_Lin Adaptor3d_Curve::Line ( ) const

virtual

Reimplemented in ChFiDS_ElSpine, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ NbIntervals()

virtual int Adaptor3d_Curve::NbIntervals ( const GeomAbs_Shape S ) const

virtual

Returns the number of intervals for continuity ~~. May be one if Continuity(me) >=~~

Reimplemented in ChFiDS_ElSpine, GeomFill_SnglrFunc, HelixGeom_HelixCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, ProjLib_ProjectOnPlane, and GeomAdaptor_TransformedCurve.

◆ NbKnots()

virtual int Adaptor3d_Curve::NbKnots ( ) const

virtual

Reimplemented in BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ NbPoles()

virtual int Adaptor3d_Curve::NbPoles ( ) const

virtual

Reimplemented in BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ OffsetCurve()

virtual occ::handle< Geom_OffsetCurve > Adaptor3d_Curve::OffsetCurve ( ) const

virtual

Reimplemented in GeomAdaptor_Curve, and GeomAdaptor_TransformedCurve.

◆ Parabola()

virtual gp_Parab Adaptor3d_Curve::Parabola ( ) const

virtual

Reimplemented in ChFiDS_ElSpine, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ Period()

virtual double Adaptor3d_Curve::Period ( ) const

virtual

Reimplemented in ChFiDS_ElSpine, GeomFill_SnglrFunc, HelixGeom_HelixCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ Resolution()

virtual double Adaptor3d_Curve::Resolution ( const double R3d ) const

virtual

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

Reimplemented in ChFiDS_ElSpine, GeomFill_SnglrFunc, HelixGeom_HelixCurve, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, ProjLib_ProjectOnPlane, and GeomAdaptor_TransformedCurve.

◆ ShallowCopy()

virtual occ::handle< Adaptor3d_Curve > Adaptor3d_Curve::ShallowCopy ( ) const

virtual

Shallow copy of adaptor.

Reimplemented in ChFiDS_ElSpine, GeomFill_SnglrFunc, BiTgte_CurveOnEdge, BRepAdaptor_CompCurve, BRepAdaptor_Curve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, GeomAdaptor_TransformedCurve, and ProjLib_ProjectOnPlane.

◆ Trim()

virtual occ::handle< Adaptor3d_Curve > Adaptor3d_Curve::Trim	(	const double	First,
		const double	Last,
		const double	Tol ) const

virtual

Returns a curve equivalent of <me> between parameters <First> and <Last>. <Tol> is used to test for 3d points confusion. If <First> >= <Last>

Reimplemented in ChFiDS_ElSpine, BiTgte_CurveOnEdge, BiTgte_CurveOnVertex, BRepAdaptor_CompCurve, BRepAdaptor_Curve, Adaptor3d_CurveOnSurface, Adaptor3d_IsoCurve, GeomAdaptor_Curve, ProjLib_ProjectOnPlane, and GeomAdaptor_TransformedCurve.

◆ Value()

gp_Pnt Adaptor3d_Curve::Value ( const double theU ) const

inline

Computes the point of parameter U on the curve.

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

Adaptor3d_Curve.hxx

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ~Adaptor3d_Curve()

Member Function Documentation

◆ Bezier()

◆ BSpline()

◆ Circle()

◆ Continuity()

◆ D0()

◆ D1()

◆ D2()

◆ D3()

◆ Degree()

◆ DN()

◆ Ellipse()

◆ EvalD0()

◆ EvalD1()

◆ EvalD2()

◆ EvalD3()

◆ EvalDN()

◆ FirstParameter()

◆ GetType()

◆ Hyperbola()

◆ Intervals()

◆ IsClosed()

◆ IsPeriodic()

◆ IsRational()

◆ LastParameter()

◆ Line()

◆ NbIntervals()

◆ NbKnots()

◆ NbPoles()

◆ OffsetCurve()

◆ Parabola()

◆ Period()

◆ Resolution()

◆ ShallowCopy()

◆ Trim()

◆ Value()