Open CASCADE Technology  6.5.4
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Public Member Functions
Geom2d_Geometry Class Reference

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.

#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.

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 Standard_Real 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 Standard_Real S)
 Scales a Geometry. S is the scaling value.

void Translate (const gp_Vec2d &V)
 Translates a Geometry. V is the vector of the tanslation.

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 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.

Handle_Geom2d_Geometry Mirrored (const gp_Pnt2d &P) const
Handle_Geom2d_Geometry Mirrored (const gp_Ax2d &A) const
Handle_Geom2d_Geometry Rotated (const gp_Pnt2d &P, const Standard_Real Ang) const
Handle_Geom2d_Geometry Scaled (const gp_Pnt2d &P, const Standard_Real S) const
Handle_Geom2d_Geometry Transformed (const gp_Trsf2d &T) const
Handle_Geom2d_Geometry Translated (const gp_Vec2d &V) const
Handle_Geom2d_Geometry Translated (const gp_Pnt2d &P1, const gp_Pnt2d &P2) const
virtual Handle_Geom2d_Geometry Copy () const =0

Member Function Documentation

virtual Handle_Geom2d_Geometry Geom2d_Geometry::Copy ( ) const [pure virtual]
Handle_Geom2d_Geometry Geom2d_Geometry::Mirrored ( const gp_Pnt2d P) const
Handle_Geom2d_Geometry Geom2d_Geometry::Mirrored ( const gp_Ax2d A) const
Handle_Geom2d_Geometry Geom2d_Geometry::Rotated ( const gp_Pnt2d P,
const Standard_Real  Ang 
) const
Handle_Geom2d_Geometry Geom2d_Geometry::Scaled ( const gp_Pnt2d P,
const Standard_Real  S 
) const
virtual void Geom2d_Geometry::Transform ( const gp_Trsf2d T) [pure virtual]
Handle_Geom2d_Geometry Geom2d_Geometry::Transformed ( const gp_Trsf2d T) const
Handle_Geom2d_Geometry Geom2d_Geometry::Translated ( const gp_Vec2d V) const
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: