fireworks::StateOrdering Class Reference

#include <TrackUtils.h>

Public Member Functions
bool	operator() (const State &state1, const State &state2) const
	StateOrdering (const TEveVector &momentum)

Private Attributes
TEveVector	m_direction

Detailed Description

Definition at line 42 of file TrackUtils.h.

Constructor & Destructor Documentation

StateOrdering()

fireworks::StateOrdering::StateOrdering ( const TEveVector &  momentum )

inline

Definition at line 46 of file TrackUtils.h.

References m_direction.

                                              {
      m_direction = momentum;
      m_direction.Normalize();
    }

Member Function Documentation

operator()()

bool fireworks::StateOrdering::operator() ( const State &  state1, const State &  state2  ) const

inline

Definition at line 50 of file TrackUtils.h.

References m_direction, and fireworks::State::position.

                                                                    {
      double product1 = state1.position.Perp() *
                        (state1.position.fX * m_direction.fX + state1.position.fY * m_direction.fY > 0 ? 1 : -1);
      double product2 = state2.position.Perp() *
                        (state2.position.fX * m_direction.fX + state2.position.fY * m_direction.fY > 0 ? 1 : -1);
      return product1 < product2;
    }

Member Data Documentation

m_direction

TEveVector fireworks::StateOrdering::m_direction

private

Definition at line 43 of file TrackUtils.h.

Referenced by operator()(), and StateOrdering().