Geom2d_Geometry Class Reference

The general abstract class Geometry in 2D space describes the common behaviour of all the geometric entities. More...

#include <Geom2d_Geometry.hxx>

Inheritance diagram for Geom2d_Geometry:

Public Member Functions
void	Mirror (const gp_Pnt2d &P)
	Performs the symmetrical transformation of a Geometry with respect to the point P which is the center of the symmetry and assigns the result to this geometric object.
void	Mirror (const gp_Ax2d &A)
	Performs the symmetrical transformation of a Geometry with respect to an axis placement which is the axis of the symmetry.
void	Rotate (const gp_Pnt2d &P, const double Ang)
	Rotates a Geometry. P is the center of the rotation. Ang is the angular value of the rotation in radians.
void	Scale (const gp_Pnt2d &P, const double S)
	Scales a Geometry. S is the scaling value.
void	Translate (const gp_Vec2d &V)
	Translates a Geometry. V is the vector of the translation.
void	Translate (const gp_Pnt2d &P1, const gp_Pnt2d &P2)
	Translates a Geometry from the point P1 to the point P2.
virtual void	Transform (const gp_Trsf2d &T)=0
	Transformation of a geometric object. This transformation can be a translation, a rotation, a symmetry, a scaling or a complex transformation obtained by combination of the previous elementaries transformations. (see class Transformation of the package Geom2d). The following transformations have the same properties as the previous ones but they don't modified the object itself. A copy of the object is returned.
occ::handle< Geom2d_Geometry >	Mirrored (const gp_Pnt2d &P) const
occ::handle< Geom2d_Geometry >	Mirrored (const gp_Ax2d &A) const
occ::handle< Geom2d_Geometry >	Rotated (const gp_Pnt2d &P, const double Ang) const
occ::handle< Geom2d_Geometry >	Scaled (const gp_Pnt2d &P, const double S) const
occ::handle< Geom2d_Geometry >	Transformed (const gp_Trsf2d &T) const
occ::handle< Geom2d_Geometry >	Translated (const gp_Vec2d &V) const
occ::handle< Geom2d_Geometry >	Translated (const gp_Pnt2d &P1, const gp_Pnt2d &P2) const
virtual occ::handle< Geom2d_Geometry >	Copy () const =0
virtual void	DumpJson (Standard_OStream &theOStream, int theDepth=-1) const
	Dumps the content of me into the stream.
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
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

The general abstract class Geometry in 2D space describes the common behaviour of all the geometric entities.

All the objects derived from this class can be move with a geometric transformation. Only the transformations which doesn't modify the nature of the geometry are available in this package. The method Transform which defines a general transformation is deferred. The other specifics transformations used the method Transform. All the following transformations modify the object itself. Warning Only transformations which do not modify the nature of the geometry can be applied to Geom2d objects: this is the case with translations, rotations, symmetries and scales; this is also the case with gp_Trsf2d composite transformations which are used to define the geometric transformations applied using the Transform or Transformed functions. Note: Geometry defines the "prototype" of the abstract method Transform which is defined for each concrete type of derived object. All other transformations are implemented using the Transform method.

Member Function Documentation

Copy()

virtual occ::handle< Geom2d_Geometry > Geom2d_Geometry::Copy ( ) const

nodiscardpure virtual

Implemented in Bisector_BisecAna, Bisector_BisecCC, Bisector_BisecPC, Geom2d_AxisPlacement, Geom2d_BezierCurve, Geom2d_BSplineCurve, Geom2d_CartesianPoint, Geom2d_Circle, Geom2d_Direction, Geom2d_Ellipse, Geom2d_Hyperbola, Geom2d_Line, Geom2d_OffsetCurve, Geom2d_Parabola, Geom2d_TrimmedCurve, Geom2d_VectorWithMagnitude, Geom2dEval_AHTBezierCurve, Geom2dEval_ArchimedeanSpiralCurve, Geom2dEval_CircleInvoluteCurve, Geom2dEval_LogarithmicSpiralCurve, Geom2dEval_SineWaveCurve, and Geom2dEval_TBezierCurve.

DumpJson()

virtual void Geom2d_Geometry::DumpJson ( Standard_OStream & theOStream, int theDepth = -1 ) const

virtual

Dumps the content of me into the stream.

Reimplemented in Geom2d_BezierCurve, Geom2d_BoundedCurve, Geom2d_BSplineCurve, Geom2d_CartesianPoint, Geom2d_Circle, Geom2d_Conic, Geom2d_Curve, Geom2d_Ellipse, Geom2d_Hyperbola, Geom2d_Line, Geom2d_OffsetCurve, Geom2d_Parabola, Geom2d_Point, Geom2d_TrimmedCurve, Geom2dEval_AHTBezierCurve, Geom2dEval_ArchimedeanSpiralCurve, Geom2dEval_CircleInvoluteCurve, Geom2dEval_LogarithmicSpiralCurve, Geom2dEval_SineWaveCurve, and Geom2dEval_TBezierCurve.

Mirror() [1/2]

void Geom2d_Geometry::Mirror

(

const gp_Ax2d &

A

)

Performs the symmetrical transformation of a Geometry with respect to an axis placement which is the axis of the symmetry.

Mirror() [2/2]

void Geom2d_Geometry::Mirror

(

const gp_Pnt2d &

P

)

Performs the symmetrical transformation of a Geometry with respect to the point P which is the center of the symmetry and assigns the result to this geometric object.

Mirrored() [1/2]

occ::handle< Geom2d_Geometry > Geom2d_Geometry::Mirrored ( const gp_Ax2d & A ) const

nodiscard

Mirrored() [2/2]

occ::handle< Geom2d_Geometry > Geom2d_Geometry::Mirrored ( const gp_Pnt2d & P ) const

nodiscard

Rotate()

void Geom2d_Geometry::Rotate	(	const gp_Pnt2d &	P,
		const double	Ang )

Rotates a Geometry. P is the center of the rotation. Ang is the angular value of the rotation in radians.

Rotated()

occ::handle< Geom2d_Geometry > Geom2d_Geometry::Rotated ( const gp_Pnt2d & P, const double Ang ) const

nodiscard

Scale()

void Geom2d_Geometry::Scale	(	const gp_Pnt2d &	P,
		const double	S )

Scales a Geometry. S is the scaling value.

Scaled()

occ::handle< Geom2d_Geometry > Geom2d_Geometry::Scaled ( const gp_Pnt2d & P, const double S ) const

nodiscard

Transform()

virtual void Geom2d_Geometry::Transform ( const gp_Trsf2d & T )

pure virtual

Transformation of a geometric object. This transformation can be a translation, a rotation, a symmetry, a scaling or a complex transformation obtained by combination of the previous elementaries transformations. (see class Transformation of the package Geom2d). The following transformations have the same properties as the previous ones but they don't modified the object itself. A copy of the object is returned.

Implemented in Bisector_BisecAna, Bisector_BisecCC, Bisector_BisecPC, Geom2d_AxisPlacement, Geom2d_BezierCurve, Geom2d_BSplineCurve, Geom2d_CartesianPoint, Geom2d_Circle, Geom2d_Direction, Geom2d_Ellipse, Geom2d_Hyperbola, Geom2d_Line, Geom2d_OffsetCurve, Geom2d_Parabola, Geom2d_TrimmedCurve, Geom2d_VectorWithMagnitude, Geom2dEval_AHTBezierCurve, Geom2dEval_ArchimedeanSpiralCurve, Geom2dEval_CircleInvoluteCurve, Geom2dEval_LogarithmicSpiralCurve, Geom2dEval_SineWaveCurve, and Geom2dEval_TBezierCurve.

Transformed()

occ::handle< Geom2d_Geometry > Geom2d_Geometry::Transformed ( const gp_Trsf2d & T ) const

nodiscard

Translate() [1/2]

void Geom2d_Geometry::Translate	(	const gp_Pnt2d &	P1,
		const gp_Pnt2d &	P2 )

Translates a Geometry from the point P1 to the point P2.

Translate() [2/2]

void Geom2d_Geometry::Translate

(

const gp_Vec2d &

V

)

Translates a Geometry. V is the vector of the translation.

Translated() [1/2]

occ::handle< Geom2d_Geometry > Geom2d_Geometry::Translated ( const gp_Pnt2d & P1, const gp_Pnt2d & P2 ) const

nodiscard

Translated() [2/2]

occ::handle< Geom2d_Geometry > Geom2d_Geometry::Translated ( const gp_Vec2d & V ) const

nodiscard

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

• Geom2d_Geometry.hxx