This class provides an interface between the services provided by any curve from the package Geom and those required of the curve by algorithms which use it. Creation of the loaded curve the curve is C1 by piece. More...

#include <GeomAdaptor_Curve.hxx>

Inheritance diagram for GeomAdaptor_Curve:

[legend]

Public Member Functions
	GeomAdaptor_Curve ()

	GeomAdaptor_Curve (const Handle< Geom_Curve > &theCurve)

	GeomAdaptor_Curve (const Handle< Geom_Curve > &theCurve, const Standard_Real theUFirst, const Standard_Real theULast)
	Standard_ConstructionError is raised if theUFirst>theULast.

virtual Handle< Adaptor3d_Curve >	ShallowCopy () const override
	Shallow copy of adaptor.

void	Reset ()
	Reset currently loaded curve (undone Load()).

void	Load (const Handle< Geom_Curve > &theCurve)

void	Load (const Handle< Geom_Curve > &theCurve, const Standard_Real theUFirst, const Standard_Real theULast)
	Standard_ConstructionError is raised if theUFirst>theULast.

const Handle< Geom_Curve > &	Curve () const
	Provides a curve inherited from Hcurve from Adaptor. This is inherited to provide easy to use constructors.

virtual Standard_Real	FirstParameter () const override

virtual Standard_Real	LastParameter () const override

GeomAbs_Shape	Continuity () const override

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

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

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

Standard_Boolean	IsClosed () const override

Standard_Boolean	IsPeriodic () const override

Standard_Real	Period () const override

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

void	D0 (const Standard_Real U, gp_Pnt &P) const override
	Computes the point of parameter U.

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

void	D2 (const Standard_Real U, gp_Pnt &P, gp_Vec &V1, gp_Vec &V2) const override
	Returns the point P of parameter U, the first and second derivatives V1 and V2.

void	D3 (const Standard_Real U, gp_Pnt &P, gp_Vec &V1, gp_Vec &V2, gp_Vec &V3) const override
	Returns the point P of parameter U, the first, the second and the third derivative.

gp_Vec	DN (const Standard_Real U, const Standard_Integer N) const override
	The returned vector gives the value of the derivative for the order of derivation N. Warning : On the specific case of BSplineCurve: if the curve is cut in interval of continuity CN, the derivatives are computed on the current interval. else the derivatives are computed on the basis curve. Raised if N < 1.

Standard_Real	Resolution (const Standard_Real R3d) const override
	returns the parametric resolution

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

gp_Lin	Line () const override

gp_Circ	Circle () const override

gp_Elips	Ellipse () const override

gp_Hypr	Hyperbola () const override

gp_Parab	Parabola () const override

Standard_Integer	Degree () const override
	this should NEVER make a copy of the underlying curve to read the relevant information

Standard_Boolean	IsRational () const override
	this should NEVER make a copy of the underlying curve to read the relevant information

Standard_Integer	NbPoles () const override
	this should NEVER make a copy of the underlying curve to read the relevant information

Standard_Integer	NbKnots () const override
	this should NEVER make a copy of the underlying curve to read the relevant information

Handle< Geom_BezierCurve >	Bezier () const override
	this will NOT make a copy of the Bezier Curve : If you want to modify the Curve please make a copy yourself Also it will NOT trim the surface to myFirst/Last.

Handle< Geom_BSplineCurve >	BSpline () const override
	this will NOT make a copy of the BSpline Curve : If you want to modify the Curve please make a copy yourself Also it will NOT trim the surface to myFirst/Last.

Handle< Geom_OffsetCurve >	OffsetCurve () const override

Public Member Functions inherited from Adaptor3d_Curve
virtual	~Adaptor3d_Curve ()

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 ()
	Destructor must be virtual.

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

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

Standard_Boolean	IsInstance (const Standard_CString theTypeName) const
	Returns a true value if this is an instance of TypeName.

Standard_Boolean	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.

Standard_Boolean	IsKind (const Standard_CString 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.

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

void	IncrementRefCounter () noexcept
	Increments the reference counter of this object.

Standard_Integer	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value.

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

This class provides an interface between the services provided by any curve from the package Geom and those required of the curve by algorithms which use it. Creation of the loaded curve the curve is C1 by piece.

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

◆ GeomAdaptor_Curve() [1/3]

GeomAdaptor_Curve::GeomAdaptor_Curve ( )

inline

◆ GeomAdaptor_Curve() [2/3]

GeomAdaptor_Curve::GeomAdaptor_Curve ( const Handle< Geom_Curve > & theCurve )

inline

◆ GeomAdaptor_Curve() [3/3]

GeomAdaptor_Curve::GeomAdaptor_Curve	(	const Handle< Geom_Curve > &	theCurve,
		const Standard_Real	theUFirst,
		const Standard_Real	theULast )

inline

Standard_ConstructionError is raised if theUFirst>theULast.

Member Function Documentation

◆ Bezier()

Handle< Geom_BezierCurve > GeomAdaptor_Curve::Bezier ( ) const

overridevirtual

this will NOT make a copy of the Bezier Curve : If you want to modify the Curve please make a copy yourself Also it will NOT trim the surface to myFirst/Last.

Reimplemented from Adaptor3d_Curve.

◆ BSpline()

Handle< Geom_BSplineCurve > GeomAdaptor_Curve::BSpline ( ) const

overridevirtual

this will NOT make a copy of the BSpline Curve : If you want to modify the Curve please make a copy yourself Also it will NOT trim the surface to myFirst/Last.

Reimplemented from Adaptor3d_Curve.

◆ Circle()

gp_Circ GeomAdaptor_Curve::Circle ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Continuity()

GeomAbs_Shape GeomAdaptor_Curve::Continuity ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Curve()

const Handle< Geom_Curve > & GeomAdaptor_Curve::Curve ( ) const

inline

Provides a curve inherited from Hcurve from Adaptor. This is inherited to provide easy to use constructors.

◆ D0()

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

overridevirtual

Computes the point of parameter U.

Reimplemented from Adaptor3d_Curve.

◆ D1()

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

overridevirtual

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

Warning : On the specific case of BSplineCurve: if the curve is cut in interval of continuity at least C1, the derivatives are computed on the current interval. else the derivatives are computed on the basis curve.

Reimplemented from Adaptor3d_Curve.

◆ D2()

void GeomAdaptor_Curve::D2	(	const Standard_Real	U,
		gp_Pnt &	P,
		gp_Vec &	V1,
		gp_Vec &	V2 ) const

overridevirtual

Returns the point P of parameter U, the first and second derivatives V1 and V2.

Warning : On the specific case of BSplineCurve: if the curve is cut in interval of continuity at least C2, the derivatives are computed on the current interval. else the derivatives are computed on the basis curve.

Reimplemented from Adaptor3d_Curve.

◆ D3()

void GeomAdaptor_Curve::D3	(	const Standard_Real	U,
		gp_Pnt &	P,
		gp_Vec &	V1,
		gp_Vec &	V2,
		gp_Vec &	V3 ) const

overridevirtual

Returns the point P of parameter U, the first, the second and the third derivative.

Warning : On the specific case of BSplineCurve: if the curve is cut in interval of continuity at least C3, the derivatives are computed on the current interval. else the derivatives are computed on the basis curve.

Reimplemented from Adaptor3d_Curve.

◆ Degree()

Standard_Integer GeomAdaptor_Curve::Degree ( ) const

overridevirtual

this should NEVER make a copy of the underlying curve to read the relevant information

Reimplemented from Adaptor3d_Curve.

◆ DN()

gp_Vec GeomAdaptor_Curve::DN	(	const Standard_Real	U,
		const Standard_Integer	N ) const

overridevirtual

The returned vector gives the value of the derivative for the order of derivation N. Warning : On the specific case of BSplineCurve: if the curve is cut in interval of continuity CN, the derivatives are computed on the current interval. else the derivatives are computed on the basis curve. Raised if N < 1.

Reimplemented from Adaptor3d_Curve.

◆ Ellipse()

gp_Elips GeomAdaptor_Curve::Ellipse ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ FirstParameter()

virtual Standard_Real GeomAdaptor_Curve::FirstParameter ( ) const

inlineoverridevirtual

Reimplemented from Adaptor3d_Curve.

◆ GetType()

virtual GeomAbs_CurveType GeomAdaptor_Curve::GetType ( ) const

inlineoverridevirtual

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

Reimplemented from Adaptor3d_Curve.

◆ Hyperbola()

gp_Hypr GeomAdaptor_Curve::Hyperbola ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Intervals()

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

overridevirtual

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 from Adaptor3d_Curve.

◆ IsClosed()

Standard_Boolean GeomAdaptor_Curve::IsClosed ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ IsPeriodic()

Standard_Boolean GeomAdaptor_Curve::IsPeriodic ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ IsRational()

Standard_Boolean GeomAdaptor_Curve::IsRational ( ) const

overridevirtual

this should NEVER make a copy of the underlying curve to read the relevant information

Reimplemented from Adaptor3d_Curve.

◆ LastParameter()

virtual Standard_Real GeomAdaptor_Curve::LastParameter ( ) const

inlineoverridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Line()

gp_Lin GeomAdaptor_Curve::Line ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Load() [1/2]

void GeomAdaptor_Curve::Load ( const Handle< Geom_Curve > & theCurve )

inline

◆ Load() [2/2]

void GeomAdaptor_Curve::Load	(	const Handle< Geom_Curve > &	theCurve,
		const Standard_Real	theUFirst,
		const Standard_Real	theULast )

inline

Standard_ConstructionError is raised if theUFirst>theULast.

◆ NbIntervals()

Standard_Integer GeomAdaptor_Curve::NbIntervals ( const GeomAbs_Shape S ) const

overridevirtual

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

Reimplemented from Adaptor3d_Curve.

◆ NbKnots()

Standard_Integer GeomAdaptor_Curve::NbKnots ( ) const

overridevirtual

this should NEVER make a copy of the underlying curve to read the relevant information

Reimplemented from Adaptor3d_Curve.

◆ NbPoles()

Standard_Integer GeomAdaptor_Curve::NbPoles ( ) const

overridevirtual

this should NEVER make a copy of the underlying curve to read the relevant information

Reimplemented from Adaptor3d_Curve.

◆ OffsetCurve()

Handle< Geom_OffsetCurve > GeomAdaptor_Curve::OffsetCurve ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Parabola()

gp_Parab GeomAdaptor_Curve::Parabola ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Period()

Standard_Real GeomAdaptor_Curve::Period ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Reset()

void GeomAdaptor_Curve::Reset ( )

Reset currently loaded curve (undone Load()).

◆ Resolution()

Standard_Real GeomAdaptor_Curve::Resolution ( const Standard_Real R3d ) const

overridevirtual

returns the parametric resolution

Reimplemented from Adaptor3d_Curve.

◆ ShallowCopy()

virtual Handle< Adaptor3d_Curve > GeomAdaptor_Curve::ShallowCopy ( ) const

overridevirtual

Shallow copy of adaptor.

Reimplemented from Adaptor3d_Curve.

◆ Trim()

Handle< Adaptor3d_Curve > GeomAdaptor_Curve::Trim	(	const Standard_Real	First,
		const Standard_Real	Last,
		const Standard_Real	Tol ) const

overridevirtual

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

Reimplemented from Adaptor3d_Curve.

◆ Value()

gp_Pnt GeomAdaptor_Curve::Value ( const Standard_Real U ) const

overridevirtual

Computes the point of parameter U on the curve.

Reimplemented from Adaptor3d_Curve.

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

GeomAdaptor_Curve.hxx

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ GeomAdaptor_Curve() [1/3]

◆ GeomAdaptor_Curve() [2/3]

◆ GeomAdaptor_Curve() [3/3]

Member Function Documentation

◆ Bezier()

◆ BSpline()

◆ Circle()

◆ Continuity()

◆ Curve()

◆ D0()

◆ D1()

◆ D2()

◆ D3()

◆ Degree()

◆ DN()

◆ Ellipse()

◆ FirstParameter()

◆ GetType()

◆ Hyperbola()

◆ Intervals()

◆ IsClosed()

◆ IsPeriodic()

◆ IsRational()

◆ LastParameter()

◆ Line()

◆ Load() [1/2]

◆ Load() [2/2]

◆ NbIntervals()

◆ NbKnots()

◆ NbPoles()

◆ OffsetCurve()

◆ Parabola()

◆ Period()

◆ Reset()

◆ Resolution()

◆ ShallowCopy()

◆ Trim()

◆ Value()