class RBendGeometry : public StraightGeometry

(Return to index)

The geometry for a RBend element.

It is a Geometry wrapper which adds two rotations by alpha/2 (local y-axis rotations) to the entrance and exit planes of a StraightGeometry. The y-rotations become part of the global geometry definition. {P} NOTE: in general the transformations returned include the effects of the y-rotations when the required point specifies the entrance or exit point. Requests for transformations within the geometry (i.e. from s1 to s2, where s1 and/or s2 are not the entrance or exit planes) do not contain the y-rotations. {P} A RBendGeometry can be seen as an OffsetGeometry, whose global geometry is a PlanarArcGeometry, and whose local geometry is a StraightGeometry.

Type:	Instantiable
Superclasses:	public StraightGeometry
Include file:	./BeamlineGeometry/RBendGeometry.hh

Inheritance

Synopsis (including inherited members):

• Public members:
  • RBendGeometry (double,double) ;
  • RBendGeometry (const RBendGeometry&) ;
  • virtual ~RBendGeometry () ;
  • const RBendGeometry& operator= (const RBendGeometry&) ;
  • virtual double getArcLength ()const ;
  • virtual double getElementLength ()const ;
  • virtual double getBendAngle ()const ;
  • void setBendAngle (double) ;
  • Euclid3D getTotalTransform ()const ;
  • Euclid3D getEntranceFrame ()const ;
  • Euclid3D getExitFrame ()const ;
  • Euclid3D getEntrancePatch ()const ;
  • Euclid3D getExitPatch ()const ;
  • const StraightGeometry& operator= (const StraightGeometry&) ;
  • virtual void setElementLength (double) ;
  • double getOrigin ()const ;
  • double getEntrance ()const ;
  • double getExit ()const ;
  • Euclid3D getTransform (double,double)const ;
  • Euclid3D getTransform (double)const ;
  • const Geometry& operator= (const Geometry&) ;

Documentation:

• Public members:

  RBendGeometry (double,double) ;

  Constructor.
  Construct an RBendGeometry from length and angle.

  virtual double getArcLength ()const ;

  Get arc length.
  Return the length measured along a circular arc tangent to the local s-axis at entrance and exit; an approximation to the actual design orbit.

  virtual double getBendAngle ()const ;

  Get angle.
  Return the total bend angle.

  virtual double getElementLength ()const ;

  Get element length.
  Return the straight length of the geometry.

  Euclid3D getEntranceFrame ()const ;

  Get transform.
  Equivalent to getTransform(0.0, getEntrance()). Return the transform of the local coordinate system from the origin to the entrance of the element.

  Euclid3D getEntrancePatch ()const ;

  Get patch.
  Returns the entrance patch (transformation) which is used to transform the global geometry to the local geometry at entrance.

  Euclid3D getExitFrame ()const ;

  Get transform.
  Equivalent to getTransform(0.0, getExit()). Return the transform of the local coordinate system from the origin to the exit of the element.

  Euclid3D getExitPatch ()const ;

  Get patch.
  Returns the entrance patch (transformation) which is used to transform the local geometry to the global geometry at exit.

  Euclid3D getTotalTransform ()const ;

  Get transform.
  Equivalent to getTransform(getEntrance(), getExit()). Return the transform of the local coordinate system from the entrance to the exit of the element.

  void setBendAngle (double) ;

  Set angle.
  Assign the bend angle.