ProjLib_ProjectOnPlane Class Reference

Class used to project a 3d curve on a plane. The result will be a 3d curve. More...

#include <ProjLib_ProjectOnPlane.hxx>

Inheritance diagram for ProjLib_ProjectOnPlane:

Public Member Functions
	ProjLib_ProjectOnPlane ()
	Empty constructor.
	ProjLib_ProjectOnPlane (const gp_Ax3 &Pl)
	The projection will be normal to the Plane defined by the Ax3 <Pl>.
	ProjLib_ProjectOnPlane (const gp_Ax3 &Pl, const gp_Dir &D)
	The projection will be along the direction <D> on the plane defined by the Ax3 <Pl>. raises if the direction <D> is parallel to the plane <Pl>.
occ::handle< Adaptor3d_Curve >	ShallowCopy () const override
	Shallow copy of adaptor.
void	Load (const occ::handle< Adaptor3d_Curve > &C, const double Tolerance, const bool KeepParametrization=true)
	Sets the Curve and perform the projection. if <KeepParametrization> is true, the parametrization of the Projected Curve <PC> will be the same as the parametrization of the initial curve . It means: proj(C(u)) = PC(u) for each u. Otherwise, the parametrization may change.
const gp_Ax3 &	GetPlane () const
const gp_Dir &	GetDirection () const
const occ::handle< Adaptor3d_Curve > &	GetCurve () const
const occ::handle< GeomAdaptor_Curve > &	GetResult () const
double	FirstParameter () const override
double	LastParameter () const override
GeomAbs_Shape	Continuity () const override
int	NbIntervals (const GeomAbs_Shape S) const override
	If necessary, breaks the curve in intervals of continuity . And returns the number of intervals.
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 corresponding to the real space resolution <R3d>.
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
	Warning ! 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.
occ::handle< Geom_BSplineCurve >	BSpline () const override
	Warning ! 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.
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.

Protected Member Functions
void	GetTrimmedResult (const occ::handle< Geom_Curve > &theProjCurve)
bool	BuildParabolaByApex (occ::handle< Geom_Curve > &theGeomParabolaPtr)
bool	BuildHyperbolaByApex (occ::handle< Geom_Curve > &theGeomParabolaPtr)
void	BuildByApprox (const double theLimitParameter)

Additional Inherited Members
typedef void	base_type
	Returns a type descriptor about this object.
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

Class used to project a 3d curve on a plane. The result will be a 3d curve.

You can ask the projected curve to have the same parametrization as the original curve.

The projection can be done along every direction not parallel to the plane.

Constructor & Destructor Documentation

ProjLib_ProjectOnPlane() [1/3]

ProjLib_ProjectOnPlane::ProjLib_ProjectOnPlane

(

)

Empty constructor.

ProjLib_ProjectOnPlane() [2/3]

ProjLib_ProjectOnPlane::ProjLib_ProjectOnPlane

(

const gp_Ax3 &

Pl

)

The projection will be normal to the Plane defined by the Ax3 <Pl>.

ProjLib_ProjectOnPlane() [3/3]

ProjLib_ProjectOnPlane::ProjLib_ProjectOnPlane	(	const gp_Ax3 &	Pl,
		const gp_Dir &	D )

The projection will be along the direction <D> on the plane defined by the Ax3 <Pl>. raises if the direction <D> is parallel to the plane <Pl>.

Member Function Documentation

Bezier()

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

overridevirtual

Warning ! 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()

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

overridevirtual

Warning ! 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.

BuildByApprox()

void ProjLib_ProjectOnPlane::BuildByApprox ( const double theLimitParameter )

protected

BuildHyperbolaByApex()

bool ProjLib_ProjectOnPlane::BuildHyperbolaByApex ( occ::handle< Geom_Curve > & theGeomParabolaPtr )

protected

BuildParabolaByApex()

bool ProjLib_ProjectOnPlane::BuildParabolaByApex ( occ::handle< Geom_Curve > & theGeomParabolaPtr )

protected

Circle()

gp_Circ ProjLib_ProjectOnPlane::Circle ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

Continuity()

GeomAbs_Shape ProjLib_ProjectOnPlane::Continuity ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

Degree()

int ProjLib_ProjectOnPlane::Degree ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

Ellipse()

gp_Elips ProjLib_ProjectOnPlane::Ellipse ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

EvalD0()

gp_Pnt ProjLib_ProjectOnPlane::EvalD0 ( const double theU ) const

nodiscardfinalvirtual

Computes the point of parameter theU on the curve.

Reimplemented from Adaptor3d_Curve.

EvalD1()

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

nodiscardfinalvirtual

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 ProjLib_ProjectOnPlane::EvalD2 ( const double theU ) const

nodiscardfinalvirtual

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 ProjLib_ProjectOnPlane::EvalD3 ( const double theU ) const

nodiscardfinalvirtual

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 ProjLib_ProjectOnPlane::EvalDN ( const double theU, const int theN ) const

nodiscardfinalvirtual

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 ProjLib_ProjectOnPlane::FirstParameter ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

GetCurve()

const occ::handle< Adaptor3d_Curve > & ProjLib_ProjectOnPlane::GetCurve

(

)

const

GetDirection()

const gp_Dir & ProjLib_ProjectOnPlane::GetDirection

(

)

const

GetPlane()

const gp_Ax3 & ProjLib_ProjectOnPlane::GetPlane

(

)

const

GetResult()

const occ::handle< GeomAdaptor_Curve > & ProjLib_ProjectOnPlane::GetResult

(

)

const

GetTrimmedResult()

void ProjLib_ProjectOnPlane::GetTrimmedResult ( const occ::handle< Geom_Curve > & theProjCurve )

protected

GetType()

GeomAbs_CurveType ProjLib_ProjectOnPlane::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 ProjLib_ProjectOnPlane::Hyperbola ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

Intervals()

void ProjLib_ProjectOnPlane::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 ProjLib_ProjectOnPlane::IsClosed ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

IsPeriodic()

bool ProjLib_ProjectOnPlane::IsPeriodic ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

IsRational()

bool ProjLib_ProjectOnPlane::IsRational ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

LastParameter()

double ProjLib_ProjectOnPlane::LastParameter ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

Line()

gp_Lin ProjLib_ProjectOnPlane::Line ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

Load()

void ProjLib_ProjectOnPlane::Load	(	const occ::handle< Adaptor3d_Curve > &	C,
		const double	Tolerance,
		const bool	KeepParametrization = true )

Sets the Curve and perform the projection. if <KeepParametrization> is true, the parametrization of the Projected Curve <PC> will be the same as the parametrization of the initial curve . It means: proj(C(u)) = PC(u) for each u. Otherwise, the parametrization may change.

NbIntervals()

int ProjLib_ProjectOnPlane::NbIntervals ( const GeomAbs_Shape S ) const

overridevirtual

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

Reimplemented from Adaptor3d_Curve.

NbKnots()

int ProjLib_ProjectOnPlane::NbKnots ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

NbPoles()

int ProjLib_ProjectOnPlane::NbPoles ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

Parabola()

gp_Parab ProjLib_ProjectOnPlane::Parabola ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

Period()

double ProjLib_ProjectOnPlane::Period ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

Resolution()

double ProjLib_ProjectOnPlane::Resolution ( const double R3d ) const

overridevirtual

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

Reimplemented from Adaptor3d_Curve.

ShallowCopy()

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

overridevirtual

Shallow copy of adaptor.

Reimplemented from Adaptor3d_Curve.

Trim()

occ::handle< Adaptor3d_Curve > ProjLib_ProjectOnPlane::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.

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

• ProjLib_ProjectOnPlane.hxx