Open CASCADE Technology  7.3.1.dev
Public Member Functions
Geom2d_Geometry Class Referenceabstract

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:
Inheritance graph
[legend]

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. More...
 
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. More...
 
void Rotate (const gp_Pnt2d &P, const Standard_Real Ang)
 Rotates a Geometry. P is the center of the rotation. Ang is the angular value of the rotation in radians. More...
 
void Scale (const gp_Pnt2d &P, const Standard_Real S)
 Scales a Geometry. S is the scaling value. More...
 
void Translate (const gp_Vec2d &V)
 Translates a Geometry. V is the vector of the tanslation. More...
 
void Translate (const gp_Pnt2d &P1, const gp_Pnt2d &P2)
 Translates a Geometry from the point P1 to the point P2. More...
 
virtual void Transform (const gp_Trsf2d &T)=0
 Transformation of a geometric object. This tansformation 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. More...
 
Handle< Geom2d_GeometryMirrored (const gp_Pnt2d &P) const
 
Handle< Geom2d_GeometryMirrored (const gp_Ax2d &A) const
 
Handle< Geom2d_GeometryRotated (const gp_Pnt2d &P, const Standard_Real Ang) const
 
Handle< Geom2d_GeometryScaled (const gp_Pnt2d &P, const Standard_Real S) const
 
Handle< Geom2d_GeometryTransformed (const gp_Trsf2d &T) const
 
Handle< Geom2d_GeometryTranslated (const gp_Vec2d &V) const
 
Handle< Geom2d_GeometryTranslated (const gp_Pnt2d &P1, const gp_Pnt2d &P2) const
 
virtual Handle< Geom2d_GeometryCopy () const =0
 
- Public Member Functions inherited from Standard_Transient
 Standard_Transient ()
 Empty constructor. More...
 
 Standard_Transient (const Standard_Transient &)
 Copy constructor – does nothing. More...
 
Standard_Transientoperator= (const Standard_Transient &)
 Assignment operator, needed to avoid copying reference counter. More...
 
virtual ~Standard_Transient ()
 Destructor must be virtual. More...
 
virtual void Delete () const
 Memory deallocator for transient classes. More...
 
virtual const opencascade::handle< Standard_Type > & DynamicType () const
 Returns a type descriptor about this object. More...
 
Standard_Boolean IsInstance (const opencascade::handle< Standard_Type > &theType) const
 Returns a true value if this is an instance of Type. More...
 
Standard_Boolean IsInstance (const Standard_CString theTypeName) const
 Returns a true value if this is an instance of TypeName. More...
 
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. More...
 
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. More...
 
Standard_TransientThis () 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. More...
 
Standard_Integer GetRefCount () const
 Get the reference counter of this object. More...
 
void IncrementRefCounter () const
 Increments the reference counter of this object. More...
 
Standard_Integer DecrementRefCounter () const
 Decrements the reference counter of this object; returns the decremented value. More...
 

Additional Inherited Members

- Public Types inherited from Standard_Transient
typedef void base_type
 Returns a type descriptor about this object. More...
 
- Static Public Member Functions inherited from Standard_Transient
static const char * get_type_name ()
 Returns a type descriptor about this object. More...
 
static const opencascade::handle< Standard_Type > & get_type_descriptor ()
 Returns type descriptor of Standard_Transient class. More...
 

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 Handle< Geom2d_Geometry > Geom2d_Geometry::Copy ( ) const
pure virtual

◆ Mirror() [1/2]

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.

◆ Mirror() [2/2]

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.

◆ Mirrored() [1/2]

Handle< Geom2d_Geometry > Geom2d_Geometry::Mirrored ( const gp_Pnt2d P) const

◆ Mirrored() [2/2]

Handle< Geom2d_Geometry > Geom2d_Geometry::Mirrored ( const gp_Ax2d A) const

◆ Rotate()

void Geom2d_Geometry::Rotate ( const gp_Pnt2d P,
const Standard_Real  Ang 
)

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

◆ Rotated()

Handle< Geom2d_Geometry > Geom2d_Geometry::Rotated ( const gp_Pnt2d P,
const Standard_Real  Ang 
) const

◆ Scale()

void Geom2d_Geometry::Scale ( const gp_Pnt2d P,
const Standard_Real  S 
)

Scales a Geometry. S is the scaling value.

◆ Scaled()

Handle< Geom2d_Geometry > Geom2d_Geometry::Scaled ( const gp_Pnt2d P,
const Standard_Real  S 
) const

◆ Transform()

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

Transformation of a geometric object. This tansformation 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 Geom2d_BSplineCurve, Geom2d_BezierCurve, Geom2d_Hyperbola, Geom2d_OffsetCurve, Geom2d_Ellipse, Geom2d_TrimmedCurve, Geom2d_Parabola, Geom2d_Line, Geom2d_VectorWithMagnitude, Geom2d_Circle, Bisector_BisecCC, Bisector_BisecPC, Bisector_BisecAna, Geom2d_AxisPlacement, Geom2d_Direction, and Geom2d_CartesianPoint.

◆ Transformed()

Handle< Geom2d_Geometry > Geom2d_Geometry::Transformed ( const gp_Trsf2d T) const

◆ Translate() [1/2]

void Geom2d_Geometry::Translate ( const gp_Vec2d V)

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

◆ Translate() [2/2]

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

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

◆ Translated() [1/2]

Handle< Geom2d_Geometry > Geom2d_Geometry::Translated ( const gp_Vec2d V) const

◆ Translated() [2/2]

Handle< Geom2d_Geometry > Geom2d_Geometry::Translated ( const gp_Pnt2d P1,
const gp_Pnt2d P2 
) const

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