]>
Commit | Line | Data |
---|---|---|
16bf9884 | 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 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
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 | ||
88cb7938 | 16 | /////////////////////////////////////////////////////////////////////////////// |
17 | // // | |
18 | // TRD MC track // | |
19 | // Used for efficiency estimates and matching of reconstructed tracks // | |
20 | // to MC particles // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
16bf9884 | 24 | #include "AliTRDmcTrack.h" |
25 | #include "AliTRDgeometry.h" | |
26 | ||
fd621f36 | 27 | |
16bf9884 | 28 | ClassImp(AliTRDmcTrack) |
29 | ||
30 | //_____________________________________________________________________________ | |
31 | AliTRDmcTrack::AliTRDmcTrack() | |
32 | { | |
33 | ||
34 | // | |
35 | // Default constructor | |
36 | // | |
37 | ||
38 | fLab = -1; | |
39 | fPrimary = kFALSE; | |
40 | fMass = 0; | |
41 | fCharge = 0; | |
42 | fN = 0; | |
43 | ||
517ac658 | 44 | for(Int_t ltb=0; ltb<kMAX_TB; ltb++) { |
45 | for(Int_t plane=0; plane < 6; plane++) { | |
46 | fIndex[ltb][plane][0] = -1; | |
47 | fIndex[ltb][plane][1] = -1; | |
48 | } | |
49 | } | |
50 | ||
16bf9884 | 51 | for(Int_t i=0; i<6; i++) { |
52 | for(Int_t j=0; j<3; j++) { | |
fd621f36 | 53 | Pin[i][j]=0.; |
54 | Pout[i][j] = 0.; | |
55 | XYZin[i][j]=0.; | |
56 | XYZout[i][j] = 0.; | |
16bf9884 | 57 | } |
58 | } | |
59 | ||
60 | } | |
61 | ||
62 | //_____________________________________________________________________________ | |
517ac658 | 63 | AliTRDmcTrack::AliTRDmcTrack(Int_t label, Int_t seedLabel, Bool_t primary, |
64 | Float_t mass, Int_t charge, Int_t pdg) | |
16bf9884 | 65 | { |
66 | ||
67 | // | |
68 | // Main constructor | |
69 | // | |
70 | ||
71 | fLab = label; | |
517ac658 | 72 | fSeedLab = seedLabel; |
16bf9884 | 73 | fPrimary = primary; |
74 | fMass = mass; | |
75 | fCharge = charge; | |
76 | fPDG = pdg; | |
77 | fN = 0; | |
78 | ||
517ac658 | 79 | for(Int_t ltb=0; ltb<kMAX_TB; ltb++) { |
80 | for(Int_t plane=0; plane < 6; plane++) { | |
81 | fIndex[ltb][plane][0] = -1; | |
82 | fIndex[ltb][plane][1] = -1; | |
83 | } | |
84 | } | |
16bf9884 | 85 | |
86 | for(Int_t i=0; i<6; i++) { | |
87 | for(Int_t j=0; j<3; j++) { | |
fd621f36 | 88 | Pin[i][j]=0.; |
89 | Pout[i][j] = 0.; | |
90 | XYZin[i][j]=0.; | |
91 | XYZout[i][j] = 0.; | |
16bf9884 | 92 | } |
93 | } | |
94 | ||
95 | } | |
96 | ||
97 | //_____________________________________________________________________________ | |
fd621f36 | 98 | void AliTRDmcTrack::GetPxPyPzXYZ(Double_t& px, Double_t& py, Double_t& pz, |
99 | Double_t& x, Double_t& y, Double_t& z, | |
100 | Int_t opt) const | |
16bf9884 | 101 | { |
102 | // | |
fd621f36 | 103 | // Returns track momentum components and coordinates at the entrance |
104 | // (opt >= 0), or exit (opt < 0) of TRD. | |
16bf9884 | 105 | // |
106 | ||
107 | Int_t i; | |
108 | ||
109 | if(opt >= 0) { | |
110 | for(i = 0; i < AliTRDgeometry::Nplan(); i++) { | |
fd621f36 | 111 | if( Pin[i][0] * Pin[i][0] |
112 | + Pin[i][1] * Pin[i][1] | |
113 | + Pin[i][2] * Pin[i][2] > 0.0005) break; | |
16bf9884 | 114 | } |
fd621f36 | 115 | px = Pin[i][0]; py = Pin[i][1]; pz = Pin[i][2]; |
116 | x = XYZin[i][0]; y = XYZin[i][1]; z = XYZin[i][2]; | |
16bf9884 | 117 | } |
118 | else { | |
119 | for(i = AliTRDgeometry::Nplan() - 1; i >= 0; i--) { | |
fd621f36 | 120 | if( Pout[i][0] * Pout[i][0] |
121 | + Pout[i][1] * Pout[i][1] | |
122 | + Pout[i][2] * Pout[i][2] > 0.0005) break; | |
16bf9884 | 123 | } |
fd621f36 | 124 | px = Pout[i][0]; py = Pout[i][1]; pz = Pout[i][2]; |
125 | x = XYZout[i][0]; y = XYZout[i][1]; z = XYZout[i][2]; | |
16bf9884 | 126 | } |
16bf9884 | 127 | return; |
16bf9884 | 128 | } |
129 | ||
130 | //_____________________________________________________________________________ | |
131 | void AliTRDmcTrack::GetPlanePxPyPz(Double_t& px, Double_t& py, Double_t& pz, | |
a3d851c2 | 132 | Int_t plane, Int_t opt) const |
16bf9884 | 133 | { |
134 | // | |
135 | // Returns momentum components at the entrance (opt >= 0), or | |
136 | // exit (opt < 0) of TRD plane <plane>. | |
137 | // | |
138 | ||
139 | if(opt >= 0) { | |
fd621f36 | 140 | px = Pin[plane][0]; py = Pin[plane][1]; pz = Pin[plane][2]; |
16bf9884 | 141 | } |
142 | else { | |
fd621f36 | 143 | px = Pout[plane][0]; py = Pout[plane][1]; pz = Pout[plane][2]; |
16bf9884 | 144 | } |
16bf9884 | 145 | return; |
16bf9884 | 146 | } |