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4c039060 | 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 | ||
16 | /* | |
17 | $Log$ | |
332e9569 | 18 | Revision 1.18 2000/11/30 17:38:08 cblume |
19 | Changes to get in line with new STEER and EVGEN | |
20 | ||
1819f4bb | 21 | Revision 1.17 2000/11/01 14:53:21 cblume |
22 | Merge with TRD-develop | |
23 | ||
793ff80c | 24 | Revision 1.14.2.3 2000/10/06 16:49:46 cblume |
25 | Made Getters const | |
26 | ||
27 | Revision 1.14.2.2 2000/10/04 16:34:58 cblume | |
28 | Replace include files by forward declarations | |
29 | ||
30 | Revision 1.14.2.1 2000/09/18 13:48:18 cblume | |
31 | Adapt to new AliTRDhit | |
32 | ||
33 | Revision 1.16 2000/06/08 18:32:58 cblume | |
34 | Make code compliant to coding conventions | |
35 | ||
8230f242 | 36 | Revision 1.15 2000/06/07 16:25:37 cblume |
37 | Try to remove compiler warnings on Sun and HP | |
38 | ||
9d0b222b | 39 | Revision 1.14 2000/02/28 19:10:26 cblume |
40 | Include the new TRD classes | |
41 | ||
851d3db9 | 42 | Revision 1.13.4.1 2000/02/28 18:01:53 cblume |
43 | Change to new hit version and introduce geometry class | |
44 | ||
45 | Revision 1.13 1999/11/05 22:50:28 fca | |
46 | Do not use Atan, removed from ROOT too | |
47 | ||
90f8d287 | 48 | Revision 1.12 1999/11/02 16:35:56 fca |
49 | New version of TRD introduced | |
50 | ||
5c7f4665 | 51 | Revision 1.11 1999/11/01 20:41:51 fca |
52 | Added protections against using the wrong version of FRAME | |
53 | ||
ab76897d | 54 | Revision 1.10 1999/09/29 09:24:35 fca |
55 | Introduction of the Copyright and cvs Log | |
56 | ||
4c039060 | 57 | */ |
58 | ||
fe4da5cc | 59 | /////////////////////////////////////////////////////////////////////////////// |
60 | // // | |
5c7f4665 | 61 | // Transition Radiation Detector version 0 -- fast simulator // |
fe4da5cc | 62 | // // |
63 | //Begin_Html | |
64 | /* | |
5c7f4665 | 65 | <img src="picts/AliTRDfullClass.gif"> |
fe4da5cc | 66 | */ |
67 | //End_Html | |
68 | // // | |
69 | // // | |
70 | /////////////////////////////////////////////////////////////////////////////// | |
71 | ||
332e9569 | 72 | #include <stdlib.h> |
73 | ||
fe4da5cc | 74 | #include <TMath.h> |
75 | #include <TRandom.h> | |
1819f4bb | 76 | #include <TVector.h> |
77 | #include <TLorentzVector.h> | |
fe4da5cc | 78 | |
fe4da5cc | 79 | #include "AliRun.h" |
80 | #include "AliMC.h" | |
81 | #include "AliConst.h" | |
82 | ||
851d3db9 | 83 | #include "AliTRDv0.h" |
793ff80c | 84 | #include "AliTRDhit.h" |
851d3db9 | 85 | #include "AliTRDgeometry.h" |
fe4da5cc | 86 | |
851d3db9 | 87 | ClassImp(AliTRDv0) |
8230f242 | 88 | |
89 | //_____________________________________________________________________________ | |
90 | AliTRDv0::AliTRDv0():AliTRD() | |
91 | { | |
92 | // | |
93 | // AliTRDv0 default constructor | |
94 | // | |
95 | ||
8230f242 | 96 | fHitsOn = 0; |
97 | ||
8230f242 | 98 | } |
99 | ||
fe4da5cc | 100 | //_____________________________________________________________________________ |
101 | AliTRDv0::AliTRDv0(const char *name, const char *title) | |
102 | :AliTRD(name, title) | |
103 | { | |
104 | // | |
105 | // Standard constructor for Transition Radiation Detector version 0 | |
106 | // | |
82bbf98a | 107 | |
82bbf98a | 108 | fHitsOn = 0; |
109 | ||
fe4da5cc | 110 | } |
851d3db9 | 111 | |
8230f242 | 112 | //_____________________________________________________________________________ |
113 | AliTRDv0::~AliTRDv0() | |
114 | { | |
115 | // | |
116 | // AliTRDv0 destructor | |
117 | // | |
118 | ||
119 | } | |
120 | ||
fe4da5cc | 121 | //_____________________________________________________________________________ |
122 | void AliTRDv0::CreateGeometry() | |
123 | { | |
124 | // | |
82bbf98a | 125 | // Create the GEANT geometry for the Transition Radiation Detector - Version 0 |
126 | // This version covers the full azimuth. | |
d3f347ff | 127 | // |
d3f347ff | 128 | |
82bbf98a | 129 | // Check that FRAME is there otherwise we have no place where to put the TRD |
8230f242 | 130 | AliModule* frame = gAlice->GetModule("FRAME"); |
131 | if (!frame) return; | |
fe4da5cc | 132 | |
82bbf98a | 133 | // Define the chambers |
134 | AliTRD::CreateGeometry(); | |
fe4da5cc | 135 | |
fe4da5cc | 136 | } |
137 | ||
138 | //_____________________________________________________________________________ | |
139 | void AliTRDv0::CreateMaterials() | |
140 | { | |
141 | // | |
142 | // Create materials for the Transition Radiation Detector | |
143 | // | |
82bbf98a | 144 | |
fe4da5cc | 145 | AliTRD::CreateMaterials(); |
82bbf98a | 146 | |
fe4da5cc | 147 | } |
148 | ||
149 | //_____________________________________________________________________________ | |
150 | void AliTRDv0::Init() | |
151 | { | |
152 | // | |
851d3db9 | 153 | // Initialize Transition Radiation Detector after geometry is built |
fe4da5cc | 154 | // |
82bbf98a | 155 | |
fe4da5cc | 156 | AliTRD::Init(); |
82bbf98a | 157 | |
851d3db9 | 158 | printf(" Fast simulator\n\n"); |
5c7f4665 | 159 | for (Int_t i = 0; i < 80; i++) printf("*"); |
160 | printf("\n"); | |
161 | ||
fe4da5cc | 162 | } |
163 | ||
164 | //_____________________________________________________________________________ | |
165 | void AliTRDv0::StepManager() | |
166 | { | |
167 | // | |
168 | // Procedure called at every step in the TRD | |
82bbf98a | 169 | // Fast simulator. If switched on, a hit is produced when a track |
170 | // crosses the border between amplification region and pad plane. | |
fe4da5cc | 171 | // |
172 | ||
851d3db9 | 173 | Int_t pla = 0; |
174 | Int_t cha = 0; | |
175 | Int_t sec = 0; | |
82bbf98a | 176 | |
793ff80c | 177 | Float_t hits[3]; |
178 | Int_t det; | |
fe4da5cc | 179 | |
0a6d8768 | 180 | TLorentzVector p; |
332e9569 | 181 | |
182 | // Use pad plane as sensitive volume | |
183 | TString cIdSens = "L"; | |
184 | TString cIdCurrent; | |
185 | Char_t cIdChamber[2]; | |
186 | ||
187 | const Int_t kNplan = AliTRDgeometry::Nplan(); | |
fe4da5cc | 188 | |
82bbf98a | 189 | // Writing out hits enabled? |
190 | if (!(fHitsOn)) return; | |
fe4da5cc | 191 | |
fe4da5cc | 192 | // Use only charged tracks and count them only once per volume |
82bbf98a | 193 | if (gMC->TrackCharge() && |
332e9569 | 194 | gMC->IsTrackEntering()) { |
fe4da5cc | 195 | |
196 | // Check on sensitive volume | |
332e9569 | 197 | cIdCurrent = gMC->CurrentVolName(); |
198 | if (cIdCurrent[1] == cIdSens) { | |
82bbf98a | 199 | |
200 | gMC->TrackPosition(p); | |
201 | for (Int_t i = 0; i < 3; i++) hits[i] = p[i]; | |
82bbf98a | 202 | |
851d3db9 | 203 | // The sector number (0 - 17) |
204 | // The numbering goes clockwise and starts at y = 0 | |
205 | Float_t phi = kRaddeg*TMath::ATan2(hits[0],hits[1]); | |
206 | if (phi < 90.) | |
207 | phi = phi + 270.; | |
208 | else | |
209 | phi = phi - 90.; | |
210 | sec = ((Int_t) (phi / 20)); | |
82bbf98a | 211 | |
332e9569 | 212 | // The plane and chamber number |
213 | cIdChamber[0] = cIdCurrent[2]; | |
214 | cIdChamber[1] = cIdCurrent[3]; | |
215 | Int_t idChamber = atoi(cIdChamber); | |
216 | cha = ((Int_t) idChamber / kNplan); | |
217 | pla = ((Int_t) idChamber % kNplan); | |
793ff80c | 218 | det = fGeometry->GetDetector(pla,cha,sec); |
82bbf98a | 219 | |
332e9569 | 220 | AddHit(gAlice->CurrentTrack(),det,hits,0,kTRUE); |
d3f347ff | 221 | |
fe4da5cc | 222 | } |
d3f347ff | 223 | |
fe4da5cc | 224 | } |
d3f347ff | 225 | |
fe4da5cc | 226 | } |