MUON/AliMUONRecoTrack.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
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  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 /* $Id$ */
  17
  18 //Authors: Mihaela Gheata, Andrei Gheata 09/10/00
  19 ////////////////////////////////////////////////////////////////////
  20 //                                                                //
  21 // AliMUONRecoTrack                                               //
  22 //                                                                //
  23 // This class represents a reconstructed muon track               //
  24 // in the tree of reconstructed events.                           //
  25 //                                                                //
  26 ////////////////////////////////////////////////////////////////////
  27
  28 #include <Riostream.h>
  29
  30 #include "AliMUONRecoTrack.h"
  31
  32 ClassImp(AliMUONRecoTrack)
  33
  34 //-------------------------------------------------------------------
  35 AliMUONRecoTrack::AliMUONRecoTrack()
  36   : TObject(),
  37     fSign(0),
  38     fFlag(0),
  39     fZvr(0.),
  40     fChi2r(0.)
  41 {
  42 //Default constructor
  43 }
  44
  45 //-------------------------------------------------------------------
  46 AliMUONRecoTrack::AliMUONRecoTrack(Bool_t active)
  47   : TObject(),
  48     fSign(0),
  49     fFlag(0),
  50     fZvr(0.),
  51     fChi2r(0.)
  52 {
  53 //Constructor of AliMUONRecoTrack
  54    if (active) {
  55         for (Int_t axis=0; axis<3; axis++) {
  56         fPr[axis] = 0.0;
  57         }
  58         for (Int_t chamber=0; chamber<10; chamber++) {
  59         fPosX[chamber] = 0.0;
  60         fPosY[chamber] = 0.0;
  61         fPosZ[chamber] = 0.0;
  62         }
  63    }
  64 }
  65
  66 //-------------------------------------------------------------------
  67 Double_t AliMUONRecoTrack::Phi() const
  68 {
  69 // Return trach phi angle
  70         return TMath::ATan2(fPr[2], fPr[1]);
  71 }
  72
  73 //-------------------------------------------------------------------
  74 Double_t AliMUONRecoTrack::Theta() const
  75 {
  76 // Return trach theta angle
  77    return TMath::ACos(fPr[2] / P());
  78 }
  79
  80 //-------------------------------------------------------------------
  81 void AliMUONRecoTrack::SetMomReconstr(Double_t px, Double_t py, Double_t pz)
  82 {
  83 // Set the track reconstructed momentum
  84    fPr[0] = px;
  85    fPr[1] = py;
  86    fPr[2] = pz;
  87 }
  88
  89 //-------------------------------------------------------------------
  90 void AliMUONRecoTrack::SetHitPosition(Int_t chamber, Double_t x, Double_t y, Double_t z)
  91 {
  92 // Set hit coordinates in chamber[0..9]
  93    fPosX[chamber] = x;
  94    fPosY[chamber] = y;
  95    fPosZ[chamber] = z;
  96 }
  97
  98 //-------------------------------------------------------------------
  99 void AliMUONRecoTrack::TrackInfo() const
 100 {
 101 // Prints momentum info for this track
 102    cout << "Px=" << GetMomReconstr(0) << " Py=" << GetMomReconstr(1) <<
 103           " Pz=" << GetMomReconstr(2) << " P=" << P() << endl;
 104 }