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13918578 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2003, 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 | **************************************************************************/ | |
bf6adc12 | 15 | |
16 | /* $Id$ */ | |
17 | ||
13918578 | 18 | //////////////////////////////////////////////////// |
19 | // Stand alone track class // | |
20 | // Origin: Elisabetta Crescio // | |
21 | // e-mail: crescio@to.infn.it // | |
22 | // it is a V2 track with a possible number // | |
23 | // of cluster equal to fgkMaxNumberOfClusters // | |
24 | //////////////////////////////////////////////////// | |
25 | ||
13918578 | 26 | #include "AliITSgeom.h" |
27 | #include "AliITStrackSA.h" | |
28 | ||
29 | ||
30 | ClassImp(AliITStrackSA) | |
31 | ||
32 | //_____________________________________ | |
15dd636f | 33 | AliITStrackSA:: AliITStrackSA() : AliITStrackMI(){ |
13918578 | 34 | // Default constructor |
35 | SetNumberOfClusters(0); | |
36 | SetNumberOfClustersSA(0); | |
37 | ResetIndexSA(); | |
7e5bf5af | 38 | for(Int_t nlay=0;nlay<fgkLayers;nlay++){ |
39 | SetNumberOfMarked(nlay,0); | |
40 | } | |
41 | ResetMarked(); | |
13918578 | 42 | } |
43 | ||
44 | ||
45 | //___________________________________________________ | |
15dd636f | 46 | AliITStrackSA::AliITStrackSA(const AliITStrackMI& t) : |
47 | AliITStrackMI(t){ | |
13918578 | 48 | // Copy a V2 track into a SA track |
49 | SetNumberOfClustersSA(0); | |
50 | ResetIndexSA(); | |
7e5bf5af | 51 | for(Int_t nlay=0;nlay<fgkLayers;nlay++){ |
52 | SetNumberOfMarked(nlay,0); | |
53 | } | |
54 | ResetMarked(); | |
55 | ||
13918578 | 56 | } |
57 | //___________________________________________________ | |
58 | AliITStrackSA::AliITStrackSA(const AliITStrackSA& t) : | |
15dd636f | 59 | AliITStrackMI(t){ |
13918578 | 60 | // Copy constructor |
61 | ||
7d62fb64 | 62 | |
13918578 | 63 | ResetIndexSA(); |
7e5bf5af | 64 | ResetMarked(); |
13918578 | 65 | Int_t number = t.GetNumberOfClustersSA(); |
66 | SetNumberOfClustersSA(number); | |
7e5bf5af | 67 | for(Int_t nlay=0;nlay<fgkLayers;nlay++){ |
68 | SetNumberOfMarked(nlay,t.GetNumberOfMarked(nlay)); | |
69 | } | |
13918578 | 70 | for(Int_t i=0;i<number;i++){ |
71 | fSain[i]=t.fSain[i]; | |
72 | } | |
7e5bf5af | 73 | for(Int_t nlay=0;nlay<fgkLayers;nlay++){ |
74 | for(Int_t i=0;i<t.GetNumberOfMarked(nlay);i++){ | |
75 | fCluMark[nlay][i]=t.fCluMark[nlay][i]; | |
76 | } | |
77 | } | |
13918578 | 78 | } |
79 | //____________________________________________________ | |
7d62fb64 | 80 | AliITStrackSA::AliITStrackSA(AliITSgeom* geom,Int_t layer, Int_t ladder, Int_t detector, Double_t Ycoor, Double_t Zcoor, Double_t phi, Double_t tanlambda, Double_t curv, Int_t lab ) { |
13918578 | 81 | // standard constructor. Used for ITS standalone tracking |
7d62fb64 | 82 | |
13918578 | 83 | if(!geom){ |
84 | Fatal("AliITStrackSA","ITS geometry not found - Abort\n"); | |
85 | return; | |
86 | } | |
87 | // get the azimuthal angle of the detector containing the innermost | |
88 | // cluster of this track (data member fAlpha) | |
89 | Float_t rotmatr[9]; | |
90 | geom->GetRotMatrix(layer,ladder,detector,rotmatr); | |
91 | fAlpha=TMath::ATan2(rotmatr[1],rotmatr[0])+TMath::Pi(); | |
92 | fAlpha+=TMath::Pi()/2.; | |
93 | if(layer==1) fAlpha+=TMath::Pi(); | |
94 | ||
95 | ||
96 | // get the radius of this detector. Procedure taken from the | |
97 | // AliITStrackerV2 constructor | |
98 | Float_t x=0,y=0,z=0; | |
99 | geom->GetTrans(layer,ladder,detector,x,y,z); | |
100 | ||
101 | Double_t fi=TMath::ATan2(rotmatr[1],rotmatr[0])+TMath::Pi(); | |
102 | fi+=TMath::Pi()/2; | |
103 | if (layer==1) fi+=TMath::Pi(); | |
104 | Double_t cp=TMath::Cos(fi), sp=TMath::Sin(fi); | |
105 | fX=x*cp+y*sp; | |
106 | ||
107 | ||
108 | fdEdx = 0; | |
109 | ||
110 | fC00 = 0.000009; // 0.000009 | |
111 | fC10 = 0.; | |
112 | fC11 = 0.000003; //0.000030 | |
113 | fC20 = 0.; | |
114 | fC21 = 0.; | |
115 | fC22 = 0.000001; //0.000001 | |
116 | fC30 = 0.; | |
117 | fC31 = 0.; | |
118 | fC32 = 0.; | |
119 | fC33 = 0.000002; //0.000002 | |
120 | fC40 = 0.; | |
121 | fC41 = 0.; | |
122 | fC42 = 0.; | |
123 | fC43 = 0.; | |
124 | fC44 = 0.000001; //0.0000001 | |
125 | ||
126 | fP0 = Ycoor; | |
127 | fP1 = Zcoor; | |
128 | ||
129 | fP2 = TMath::Sin(phi-fAlpha); | |
130 | fP3 = tanlambda; | |
131 | fP4 = curv; | |
132 | for(Int_t i=0; i<kMaxLayer; i++) fIndex[i] = 0; // to be set explicitely | |
133 | ||
134 | for(Int_t i=0; i<4; i++) fdEdxSample[i] = 0; | |
135 | ||
136 | SetNumberOfClusters(0); | |
137 | SetNumberOfClustersSA(0); | |
7e5bf5af | 138 | for(Int_t nlay=0;nlay<fgkLayers;nlay++) SetNumberOfMarked(nlay,0); |
13918578 | 139 | ResetIndexSA(); |
7e5bf5af | 140 | ResetMarked(); |
13918578 | 141 | SetChi2(0); |
142 | SetMass(0.139); // pion mass | |
143 | SetLabel(lab); | |
144 | ||
7d62fb64 | 145 | |
13918578 | 146 | } |
147 | ||
148 | //____________________________________________________________ | |
149 | void AliITStrackSA::AddClusterSA(Int_t layer, Int_t clnumb) { | |
150 | // add one clusters to the list (maximum number=fgkMaxNumberOfClusters) | |
151 | Int_t presnum = GetNumberOfClustersSA(); | |
152 | if(presnum>=fgkMaxNumberOfClusters){ | |
153 | Warning("AddClusterSA","Maximum number of clusters already reached. Nothing is done\n"); | |
154 | return; | |
155 | } | |
156 | ||
157 | fSain[presnum] = (layer<<28)+clnumb; | |
158 | presnum++; | |
159 | SetNumberOfClustersSA(presnum); | |
160 | } | |
161 | ||
7e5bf5af | 162 | //____________________________________________________________ |
163 | void AliITStrackSA::AddClusterMark(Int_t layer, Int_t clnumb) { | |
164 | // add one clusters to the list (maximum number=fgkMaxNumberOfClusters) | |
165 | Int_t presnum = GetNumberOfMarked(layer); | |
166 | // printf("presnum=%d\n",presnum); | |
167 | if(presnum>=fgkMaxNumberOfClustersL){ | |
168 | Warning("AddClusterMark","Maximum number of clusters already reached. Nothing is done\n"); | |
169 | return; | |
170 | } | |
171 | ||
172 | fCluMark[layer][presnum] = clnumb; | |
173 | presnum++; | |
174 | SetNumberOfMarked(layer,presnum); | |
175 | } | |
176 | ||
13918578 | 177 | //____________________________________________________________ |
178 | void AliITStrackSA::AddClusterV2(Int_t layer,Int_t clnumb) { | |
179 | // add one clusters to the list (maximum number=6) | |
180 | Int_t presnum = GetNumberOfClusters(); | |
181 | if(presnum>=kMaxLayer){ | |
182 | Warning("AddClusterV2","Maximum number of clusters already reached. Nothing is done\n"); | |
183 | return; | |
184 | } | |
185 | ||
186 | fIndex[presnum] = (layer<<28)+clnumb; | |
187 | presnum++; | |
188 | SetNumberOfClusters(presnum); | |
189 | } | |
190 | ||
7e5bf5af | 191 | //_____________________________________________________________ |
192 | void AliITStrackSA::ResetMarked(){ | |
13918578 | 193 | |
7e5bf5af | 194 | //Reset array of marked clusters |
195 | for(Int_t nlay=0;nlay<fgkLayers;nlay++){ | |
196 | for(Int_t k=0; k<fgkMaxNumberOfClustersL; k++) fCluMark[nlay][k]=0; | |
197 | } | |
198 | } | |
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