bak_RootEventData-00-05-12/src/TRecCgemTrack.cxx

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#include "RootEventData/TRecCgemTrack.h"
#include <cmath>
 
 ClassImp(TRecCgemTrack)
    
//************************************************
//
 TRecCgemTrack::TRecCgemTrack() {
    Clear();
 }
//************************************************
//
 TRecCgemTrack::~TRecCgemTrack (){
    Clear();
 }
 
 
 const Int_t     TRecCgemTrack::charge() const {
   Int_t charge;
   Double_t temp = m_helix[2];
   if (temp >0.0000000001)
     charge = 1 ;
   else if (temp < -0.0000000001)
     charge = -1;
   else
     charge = 0;
   return charge;
 }
 
 const Double_t TRecCgemTrack::x()       const {
   return  m_helix[0]*cos(m_helix[1]);
 }
                                                                                
 const Double_t TRecCgemTrack::y()       const {
   return  m_helix[0]*sin(m_helix[1]);
 }
                                                                                
 const Double_t TRecCgemTrack::z()       const {
   return  m_helix[3];
 }
                                                                                
 const Double_t TRecCgemTrack::r()       const {
   return  sqrt(x()*x()+y()*y());
 }
 
 const Double_t  TRecCgemTrack::pxy()    const {
   if(m_helix[2] != 0)
     return 1./fabs(m_helix[2]);
   else return 0.;
 }
                                                                                
 const Double_t  TRecCgemTrack::px()     const {
   return pxy()*(-sin(m_helix[1]));
 }
                                                                                
 const Double_t  TRecCgemTrack::py()     const {
   return pxy()*cos(m_helix[1]);
 }
                                                                                
 const Double_t  TRecCgemTrack::pz()     const {
   return  pxy()*m_helix[4];
 }
                                                                                
 const Double_t  TRecCgemTrack::p()      const {
   return  sqrt(px()*px() + py()*py() + pz()*pz());
 }
 
 const Double_t  TRecCgemTrack::theta()  const {
   return acos(pz()/p());
 }
                                                                                
 const Double_t  TRecCgemTrack::phi()    const {
   return atan2(py(),px());
 }