ROOT » MATH » GENVECTOR » ROOT::Math::Translation3D

class ROOT::Math::Translation3D


    Class describing a 3 dimensional translation. It can be combined (using the operator *)
    with the ROOT::Math::Rotation3D  classes and ROOT::Math::Transform3D to obtained combined
    transformations and to operate on points and vectors.
    Note that a the translation applied to a Vector object (DisplacementVector3D and LorentzVector classes)
    performes a noop, i.e. it returns the same vector. A translation can be applied only to the Point objects
    (PositionVector3D classes).

    @ingroup GenVector

Function Members (Methods)

Data Members

private:
ROOT::Math::Translation3D::VectorfVectinternal 3D vector representing the translation

Class Charts

Inheritance Inherited Members Includes Libraries
Class Charts

Function documentation

Translation3D()
       Default constructor ( zero translation )
{}
Translation3D(IT begin, IT end)
      Construct given a pair of pointers or iterators defining the
      beginning and end of an array of 3 Scalars representing the z,y,z of the translation vector
Translation3D(double dx, double dy, double dz)
      Construct from x,y,z values representing the translation
{ }
explicit Translation3D( const DisplacementVector3D<CoordSystem,Tag> & v)
      Construct from any Displacement vector in ant tag and coordinate system
{ }
Translation3D(const PositionVector3D<CoordSystem,Tag> & p1, const PositionVector3D<CoordSystem,Tag> & p2 )
      Construct transformation from one coordinate system defined one point (the origin)
       to a new coordinate system defined by other point (origin )
      @param p1  point defining origin of original reference system
      @param p2  point defining origin of transformed reference system
{ }
void SetComponents(IT begin, IT end)
      Set the 3  components given an iterator to the start of
      the desired data, and another to the end (3 past start).
void GetComponents(IT begin, IT end)
      Get the 3  components into data specified by an iterator begin
      and another to the end of the desired data (12 past start).
SetXYZ(double dx, double dy, double dz)
      Set the XYZ vector components from 3 scalars
PositionVector3D<CoordSystem,Tag> operator()(const ROOT::Math::Plane3D& plane) const
 operations on points and vectors

      Transformation operation for Position Vector in any coordinate system and default tag
void Invert()
       Invert the transformation in place
Translation3D Inverse() const
      Return the inverse of the transformation.
return ! operator==(rhs)