HepLine3D Class Reference

#include <Line3D.h>

Public Member Functions
double	dist (const HepGeom::Point3D< double > &q) const
double	dist2 (const HepGeom::Point3D< double > &q) const
	HepLine3D (const HepGeom::Point3D< double > &p, const HepGeom::Vector3D< double > &v, double sml=1.e-10)
	HepLine3D (const HepGeom::Point3D< double > &p1, const HepGeom::Point3D< double > &p2, double sml=1.e-10)
	HepLine3D (const HepLine3D &line)
bool	operator!= (const HepLine3D &l) const
HepLine3D &	operator= (const HepLine3D &line)
bool	operator== (const HepLine3D &l) const
HepGeom::Point3D< double >	point (const HepGeom::Plane3D< double > &pl, bool &parallel) const
HepGeom::Point3D< double >	point (const HepGeom::Point3D< double > &q) const
const HepGeom::Point3D< double > &	pt () const
const HepGeom::Vector3D< double > &	uv () const
	~HepLine3D ()

Protected Attributes
double	eps
HepGeom::Point3D< double >	pp
HepGeom::Vector3D< double >	uu

Detailed Description

Definition at line 21 of file Line3D.h.

Constructor & Destructor Documentation

HepLine3D::HepLine3D ( const HepGeom::Point3D< double > &  p, const HepGeom::Vector3D< double > &  v, double  sml = 1.e-10  )

inline

Definition at line 30 of file Line3D.h.

                                        :
     pp  ( p ), 
     uu  ( v*( v.mag()>1.e-10 ? 1./v.mag() : 1 ) ), 
     eps ( fabs( sml ) ) {} 

HepLine3D::HepLine3D ( const HepGeom::Point3D< double > &  p1, const HepGeom::Point3D< double > &  p2, double  sml = 1.e-10  )

inline

Definition at line 37 of file Line3D.h.

                                       :
     pp  ( p1 ), 
     uu  ( (p2-p1)*( (p2-p1).mag()>1.e-10 ? 1./(p2-p1).mag() : 1 ) ),
     eps ( fabs( sml ) ) {} 

HepLine3D::HepLine3D ( const HepLine3D &  line )

inline

Definition at line 45 of file Line3D.h.

                                         :
     pp (line.pp), uu(line.uu), eps(line.eps) {}

HepLine3D::~HepLine3D ( )

inline

Definition at line 49 of file Line3D.h.

{};

Member Function Documentation

double HepLine3D::dist ( const HepGeom::Point3D< double > &  q ) const

inline

Definition at line 91 of file Line3D.h.

References point().

{ return ( q - point( q ) ).mag() ; }

double HepLine3D::dist2 ( const HepGeom::Point3D< double > &  q ) const

inline

Definition at line 90 of file Line3D.h.

References point().

Referenced by CaloCellCrossing::CaloCellCrossing().

{ return ( q - point( q ) ).mag2() ; }

bool HepLine3D::operator!= ( const HepLine3D &  l ) const

inline

Definition at line 64 of file Line3D.h.

References pp, and uu.

      {
     return pp != l.pp || uu != l.uu ;
      }

HepLine3D& HepLine3D::operator= ( const HepLine3D &  line )

inline

Definition at line 52 of file Line3D.h.

References eps, pp, and uu.

      {
     pp = line.pp; uu = line.uu; eps = line.eps; return *this;
      }

bool HepLine3D::operator== ( const HepLine3D &  l ) const

inline

Definition at line 58 of file Line3D.h.

References pp, and uu.

      {
     return pp == l.pp && uu == l.uu ;
      }

HepGeom::Point3D<double> HepLine3D::point ( const HepGeom::Plane3D< double > &  pl, bool &  parallel  ) const

inline

Definition at line 73 of file Line3D.h.

References eps, pp, and uu.

Referenced by CaloCellCrossing::CaloCellCrossing(), dist(), and dist2().

      {
     const double num ( -pl.d() - pl.a()*pp.x() - pl.b()*pp.y() - pl.c()*pp.z() ) ;
     const double den (           pl.a()*uu.x() + pl.b()*uu.y() + pl.c()*uu.z() ) ;

     parallel = ( eps > fabs( num ) ) || ( eps > fabs( den ) ) ;

     return ( parallel ? pp : HepGeom::Point3D<double> ( pp + uu*(num/den) ) ) ;
      }

HepGeom::Point3D<double> HepLine3D::point ( const HepGeom::Point3D< double > &  q ) const

inline

Definition at line 83 of file Line3D.h.

References pp, and uu.

      {
     return ( pp + ( ( q.x() - pp.x() )*uu.x() +
             ( q.y() - pp.y() )*uu.y() +
             ( q.z() - pp.z() )*uu.z() )*uu ) ; 
      }

const HepGeom::Point3D<double>& HepLine3D::pt ( ) const

inline

Definition at line 69 of file Line3D.h.

References pp.

Referenced by CaloCellCrossing::CaloCellCrossing().

{ return pp ; }

const HepGeom::Vector3D<double>& HepLine3D::uv ( ) const

inline

Definition at line 71 of file Line3D.h.

References uu.

Referenced by CaloCellCrossing::CaloCellCrossing().

{ return uu ; }

Member Data Documentation

double HepLine3D::eps

protected

Definition at line 26 of file Line3D.h.

Referenced by operator=(), and point().

HepGeom::Point3D<double> HepLine3D::pp

protected

Definition at line 24 of file Line3D.h.

Referenced by operator!=(), operator=(), operator==(), point(), and pt().

HepGeom::Vector3D<double> HepLine3D::uu

protected

Definition at line 25 of file Line3D.h.

Referenced by operator!=(), operator=(), operator==(), point(), and uv().