The Curve from BRepAdaptor allows to use a Wire of the BRep topology like a 3D curve. Warning: With this class of curve, C0 and C1 continuities are not assumed. So be careful with some algorithm! Please note that BRepAdaptor_CompCurve cannot be periodic curve at all (even if it contains single periodic edge). More...

#include <BRepAdaptor_CompCurve.hxx>

Inheritance diagram for BRepAdaptor_CompCurve:

[legend]

Public Member Functions
	BRepAdaptor_CompCurve ()
	Creates an undefined Curve with no Wire loaded.

	BRepAdaptor_CompCurve (const TopoDS_Wire &W, const bool KnotByCurvilinearAbcissa=false)

	BRepAdaptor_CompCurve (const TopoDS_Wire &W, const bool KnotByCurvilinearAbcissa, const double First, const double Last, const double Tol)
	Creates a Curve to access the geometry of edge <W>.

occ::handle< Adaptor3d_Curve >	ShallowCopy () const override
	Shallow copy of adaptor.

void	Initialize (const TopoDS_Wire &W, const bool KnotByCurvilinearAbcissa)
	Sets the wire <W>.

void	Initialize (const TopoDS_Wire &W, const bool KnotByCurvilinearAbcissa, const double First, const double Last, const double Tol)
	Sets wire <W> and trimmed parameter.

const TopoDS_Wire &	Wire () const
	Returns the wire.

void	Edge (const double U, TopoDS_Edge &E, double &UonE) const
	returns an edge and one parameter on them corresponding to the parameter U.

double	FirstParameter () const override

double	LastParameter () const override

GeomAbs_Shape	Continuity () const override

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

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

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

bool	IsClosed () const override

bool	IsPeriodic () const override

double	Period () const override

gp_Pnt	EvalD0 (const double theU) const final
	Computes the point of parameter theU on the curve.

Geom_Curve::ResD1	EvalD1 (const double theU) const final
	Computes the point of parameter theU on the curve with its first derivative. Raised if the continuity of the current interval is not C1.

Geom_Curve::ResD2	EvalD2 (const double theU) const final
	Returns the point and the first and second derivatives at parameter theU. Raised if the continuity of the current interval is not C2.

Geom_Curve::ResD3	EvalD3 (const double theU) const final
	Returns the point and the first, second and third derivatives at parameter theU. Raised if the continuity of the current interval is not C3.

gp_Vec	EvalDN (const double theU, const int theN) const final
	Returns the derivative of order theN at parameter theU. Raised if the continuity of the current interval is not CN. Raised if theN < 1.

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

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

int	Degree () const override

bool	IsRational () const override

int	NbPoles () const override

int	NbKnots () const override

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

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

Public Member Functions inherited from Adaptor3d_Curve
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 occ::handle< Geom_OffsetCurve >	OffsetCurve () const

	~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

The Curve from BRepAdaptor allows to use a Wire of the BRep topology like a 3D curve. Warning: With this class of curve, C0 and C1 continuities are not assumed. So be careful with some algorithm! Please note that BRepAdaptor_CompCurve cannot be periodic curve at all (even if it contains single periodic edge).

BRepAdaptor_CompCurve can only work on valid wires where all edges are connected to each other to make a chain.

Constructor & Destructor Documentation

◆ BRepAdaptor_CompCurve() [1/3]

BRepAdaptor_CompCurve::BRepAdaptor_CompCurve ( )

Creates an undefined Curve with no Wire loaded.

◆ BRepAdaptor_CompCurve() [2/3]

BRepAdaptor_CompCurve::BRepAdaptor_CompCurve	(	const TopoDS_Wire &	W,
		const bool	KnotByCurvilinearAbcissa = false )

◆ BRepAdaptor_CompCurve() [3/3]

BRepAdaptor_CompCurve::BRepAdaptor_CompCurve	(	const TopoDS_Wire &	W,
		const bool	KnotByCurvilinearAbcissa,
		const double	First,
		const double	Last,
		const double	Tol )

Creates a Curve to access the geometry of edge <W>.

Member Function Documentation

◆ Bezier()

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

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ BSpline()

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

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Circle()

gp_Circ BRepAdaptor_CompCurve::Circle ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Continuity()

GeomAbs_Shape BRepAdaptor_CompCurve::Continuity ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Degree()

int BRepAdaptor_CompCurve::Degree ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Edge()

void BRepAdaptor_CompCurve::Edge	(	const double	U,
		TopoDS_Edge &	E,
		double &	UonE ) const

returns an edge and one parameter on them corresponding to the parameter U.

◆ Ellipse()

gp_Elips BRepAdaptor_CompCurve::Ellipse ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ EvalD0()

gp_Pnt BRepAdaptor_CompCurve::EvalD0 ( const double theU ) const

finalvirtual

Computes the point of parameter theU on the curve.

Reimplemented from Adaptor3d_Curve.

◆ EvalD1()

Geom_Curve::ResD1 BRepAdaptor_CompCurve::EvalD1 ( const double theU ) const

finalvirtual

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

Reimplemented from Adaptor3d_Curve.

◆ EvalD2()

Geom_Curve::ResD2 BRepAdaptor_CompCurve::EvalD2 ( const double theU ) const

finalvirtual

Returns the point and the first and second derivatives at parameter theU. Raised if the continuity of the current interval is not C2.

Reimplemented from Adaptor3d_Curve.

◆ EvalD3()

Geom_Curve::ResD3 BRepAdaptor_CompCurve::EvalD3 ( const double theU ) const

finalvirtual

Returns the point and the first, second and third derivatives at parameter theU. Raised if the continuity of the current interval is not C3.

Reimplemented from Adaptor3d_Curve.

◆ EvalDN()

gp_Vec BRepAdaptor_CompCurve::EvalDN	(	const double	theU,
		const int	theN ) const

finalvirtual

Returns the derivative of order theN at parameter theU. Raised if the continuity of the current interval is not CN. Raised if theN < 1.

Reimplemented from Adaptor3d_Curve.

◆ FirstParameter()

double BRepAdaptor_CompCurve::FirstParameter ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ GetType()

GeomAbs_CurveType BRepAdaptor_CompCurve::GetType ( ) const

overridevirtual

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 BRepAdaptor_CompCurve::Hyperbola ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Initialize() [1/2]

void BRepAdaptor_CompCurve::Initialize	(	const TopoDS_Wire &	W,
		const bool	KnotByCurvilinearAbcissa )

Sets the wire <W>.

◆ Initialize() [2/2]

void BRepAdaptor_CompCurve::Initialize	(	const TopoDS_Wire &	W,
		const bool	KnotByCurvilinearAbcissa,
		const double	First,
		const double	Last,
		const double	Tol )

Sets wire <W> and trimmed parameter.

◆ Intervals()

void BRepAdaptor_CompCurve::Intervals	(	NCollection_Array1< double > &	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()

bool BRepAdaptor_CompCurve::IsClosed ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ IsPeriodic()

bool BRepAdaptor_CompCurve::IsPeriodic ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ IsRational()

bool BRepAdaptor_CompCurve::IsRational ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ LastParameter()

double BRepAdaptor_CompCurve::LastParameter ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Line()

gp_Lin BRepAdaptor_CompCurve::Line ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ NbIntervals()

int BRepAdaptor_CompCurve::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()

int BRepAdaptor_CompCurve::NbKnots ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ NbPoles()

int BRepAdaptor_CompCurve::NbPoles ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Parabola()

gp_Parab BRepAdaptor_CompCurve::Parabola ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Period()

double BRepAdaptor_CompCurve::Period ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Resolution()

double BRepAdaptor_CompCurve::Resolution ( const double R3d ) const

overridevirtual

returns the parametric resolution

Reimplemented from Adaptor3d_Curve.

◆ ShallowCopy()

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

overridevirtual

Shallow copy of adaptor.

Reimplemented from Adaptor3d_Curve.

◆ Trim()

occ::handle< Adaptor3d_Curve > BRepAdaptor_CompCurve::Trim	(	const double	First,
		const double	Last,
		const double	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.

◆ Wire()

const TopoDS_Wire & BRepAdaptor_CompCurve::Wire ( ) const

Returns the wire.

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

BRepAdaptor_CompCurve.hxx

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ BRepAdaptor_CompCurve() [1/3]

◆ BRepAdaptor_CompCurve() [2/3]

◆ BRepAdaptor_CompCurve() [3/3]

Member Function Documentation

◆ Bezier()

◆ BSpline()

◆ Circle()

◆ Continuity()

◆ Degree()

◆ Edge()

◆ Ellipse()

◆ EvalD0()

◆ EvalD1()

◆ EvalD2()

◆ EvalD3()

◆ EvalDN()

◆ FirstParameter()

◆ GetType()

◆ Hyperbola()

◆ Initialize() [1/2]

◆ Initialize() [2/2]

◆ Intervals()

◆ IsClosed()

◆ IsPeriodic()

◆ IsRational()

◆ LastParameter()

◆ Line()

◆ NbIntervals()

◆ NbKnots()

◆ NbPoles()

◆ Parabola()

◆ Period()

◆ Resolution()

◆ ShallowCopy()

◆ Trim()

◆ Wire()