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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 | $Log$ | |
593a9fc3 | 18 | Revision 1.19 2002/02/11 14:25:27 cblume |
19 | Geometry update, compressed hit structure | |
20 | ||
332e9569 | 21 | Revision 1.18 2000/11/30 17:38:08 cblume |
22 | Changes to get in line with new STEER and EVGEN | |
23 | ||
1819f4bb | 24 | Revision 1.17 2000/11/01 14:53:21 cblume |
25 | Merge with TRD-develop | |
26 | ||
793ff80c | 27 | Revision 1.14.2.3 2000/10/06 16:49:46 cblume |
28 | Made Getters const | |
29 | ||
30 | Revision 1.14.2.2 2000/10/04 16:34:58 cblume | |
31 | Replace include files by forward declarations | |
32 | ||
33 | Revision 1.14.2.1 2000/09/18 13:48:18 cblume | |
34 | Adapt to new AliTRDhit | |
35 | ||
36 | Revision 1.16 2000/06/08 18:32:58 cblume | |
37 | Make code compliant to coding conventions | |
38 | ||
8230f242 | 39 | Revision 1.15 2000/06/07 16:25:37 cblume |
40 | Try to remove compiler warnings on Sun and HP | |
41 | ||
9d0b222b | 42 | Revision 1.14 2000/02/28 19:10:26 cblume |
43 | Include the new TRD classes | |
44 | ||
851d3db9 | 45 | Revision 1.13.4.1 2000/02/28 18:01:53 cblume |
46 | Change to new hit version and introduce geometry class | |
47 | ||
48 | Revision 1.13 1999/11/05 22:50:28 fca | |
49 | Do not use Atan, removed from ROOT too | |
50 | ||
90f8d287 | 51 | Revision 1.12 1999/11/02 16:35:56 fca |
52 | New version of TRD introduced | |
53 | ||
5c7f4665 | 54 | Revision 1.11 1999/11/01 20:41:51 fca |
55 | Added protections against using the wrong version of FRAME | |
56 | ||
ab76897d | 57 | Revision 1.10 1999/09/29 09:24:35 fca |
58 | Introduction of the Copyright and cvs Log | |
59 | ||
4c039060 | 60 | */ |
61 | ||
fe4da5cc | 62 | /////////////////////////////////////////////////////////////////////////////// |
63 | // // | |
5c7f4665 | 64 | // Transition Radiation Detector version 0 -- fast simulator // |
fe4da5cc | 65 | // // |
66 | //Begin_Html | |
67 | /* | |
5c7f4665 | 68 | <img src="picts/AliTRDfullClass.gif"> |
fe4da5cc | 69 | */ |
70 | //End_Html | |
71 | // // | |
72 | // // | |
73 | /////////////////////////////////////////////////////////////////////////////// | |
74 | ||
332e9569 | 75 | #include <stdlib.h> |
76 | ||
fe4da5cc | 77 | #include <TMath.h> |
78 | #include <TRandom.h> | |
1819f4bb | 79 | #include <TVector.h> |
80 | #include <TLorentzVector.h> | |
fe4da5cc | 81 | |
fe4da5cc | 82 | #include "AliRun.h" |
83 | #include "AliMC.h" | |
84 | #include "AliConst.h" | |
85 | ||
851d3db9 | 86 | #include "AliTRDv0.h" |
793ff80c | 87 | #include "AliTRDhit.h" |
851d3db9 | 88 | #include "AliTRDgeometry.h" |
fe4da5cc | 89 | |
851d3db9 | 90 | ClassImp(AliTRDv0) |
8230f242 | 91 | |
92 | //_____________________________________________________________________________ | |
93 | AliTRDv0::AliTRDv0():AliTRD() | |
94 | { | |
95 | // | |
96 | // AliTRDv0 default constructor | |
97 | // | |
98 | ||
8230f242 | 99 | fHitsOn = 0; |
100 | ||
8230f242 | 101 | } |
102 | ||
fe4da5cc | 103 | //_____________________________________________________________________________ |
104 | AliTRDv0::AliTRDv0(const char *name, const char *title) | |
105 | :AliTRD(name, title) | |
106 | { | |
107 | // | |
108 | // Standard constructor for Transition Radiation Detector version 0 | |
109 | // | |
82bbf98a | 110 | |
82bbf98a | 111 | fHitsOn = 0; |
112 | ||
fe4da5cc | 113 | } |
851d3db9 | 114 | |
8230f242 | 115 | //_____________________________________________________________________________ |
116 | AliTRDv0::~AliTRDv0() | |
117 | { | |
118 | // | |
119 | // AliTRDv0 destructor | |
120 | // | |
121 | ||
122 | } | |
123 | ||
fe4da5cc | 124 | //_____________________________________________________________________________ |
125 | void AliTRDv0::CreateGeometry() | |
126 | { | |
127 | // | |
82bbf98a | 128 | // Create the GEANT geometry for the Transition Radiation Detector - Version 0 |
129 | // This version covers the full azimuth. | |
d3f347ff | 130 | // |
d3f347ff | 131 | |
82bbf98a | 132 | // Check that FRAME is there otherwise we have no place where to put the TRD |
8230f242 | 133 | AliModule* frame = gAlice->GetModule("FRAME"); |
134 | if (!frame) return; | |
fe4da5cc | 135 | |
82bbf98a | 136 | // Define the chambers |
137 | AliTRD::CreateGeometry(); | |
fe4da5cc | 138 | |
fe4da5cc | 139 | } |
140 | ||
141 | //_____________________________________________________________________________ | |
142 | void AliTRDv0::CreateMaterials() | |
143 | { | |
144 | // | |
145 | // Create materials for the Transition Radiation Detector | |
146 | // | |
82bbf98a | 147 | |
fe4da5cc | 148 | AliTRD::CreateMaterials(); |
82bbf98a | 149 | |
fe4da5cc | 150 | } |
151 | ||
152 | //_____________________________________________________________________________ | |
153 | void AliTRDv0::Init() | |
154 | { | |
155 | // | |
851d3db9 | 156 | // Initialize Transition Radiation Detector after geometry is built |
fe4da5cc | 157 | // |
82bbf98a | 158 | |
fe4da5cc | 159 | AliTRD::Init(); |
82bbf98a | 160 | |
851d3db9 | 161 | printf(" Fast simulator\n\n"); |
5c7f4665 | 162 | for (Int_t i = 0; i < 80; i++) printf("*"); |
163 | printf("\n"); | |
164 | ||
fe4da5cc | 165 | } |
166 | ||
167 | //_____________________________________________________________________________ | |
168 | void AliTRDv0::StepManager() | |
169 | { | |
170 | // | |
171 | // Procedure called at every step in the TRD | |
82bbf98a | 172 | // Fast simulator. If switched on, a hit is produced when a track |
173 | // crosses the border between amplification region and pad plane. | |
fe4da5cc | 174 | // |
175 | ||
851d3db9 | 176 | Int_t pla = 0; |
177 | Int_t cha = 0; | |
178 | Int_t sec = 0; | |
82bbf98a | 179 | |
793ff80c | 180 | Float_t hits[3]; |
181 | Int_t det; | |
fe4da5cc | 182 | |
0a6d8768 | 183 | TLorentzVector p; |
332e9569 | 184 | |
185 | // Use pad plane as sensitive volume | |
186 | TString cIdSens = "L"; | |
187 | TString cIdCurrent; | |
593a9fc3 | 188 | Char_t cIdChamber[3]; |
189 | cIdChamber[2] = 0; | |
332e9569 | 190 | |
191 | const Int_t kNplan = AliTRDgeometry::Nplan(); | |
fe4da5cc | 192 | |
82bbf98a | 193 | // Writing out hits enabled? |
194 | if (!(fHitsOn)) return; | |
fe4da5cc | 195 | |
fe4da5cc | 196 | // Use only charged tracks and count them only once per volume |
82bbf98a | 197 | if (gMC->TrackCharge() && |
332e9569 | 198 | gMC->IsTrackEntering()) { |
fe4da5cc | 199 | |
200 | // Check on sensitive volume | |
332e9569 | 201 | cIdCurrent = gMC->CurrentVolName(); |
202 | if (cIdCurrent[1] == cIdSens) { | |
82bbf98a | 203 | |
204 | gMC->TrackPosition(p); | |
205 | for (Int_t i = 0; i < 3; i++) hits[i] = p[i]; | |
82bbf98a | 206 | |
851d3db9 | 207 | // The sector number (0 - 17) |
208 | // The numbering goes clockwise and starts at y = 0 | |
209 | Float_t phi = kRaddeg*TMath::ATan2(hits[0],hits[1]); | |
210 | if (phi < 90.) | |
211 | phi = phi + 270.; | |
212 | else | |
213 | phi = phi - 90.; | |
214 | sec = ((Int_t) (phi / 20)); | |
82bbf98a | 215 | |
332e9569 | 216 | // The plane and chamber number |
217 | cIdChamber[0] = cIdCurrent[2]; | |
218 | cIdChamber[1] = cIdCurrent[3]; | |
219 | Int_t idChamber = atoi(cIdChamber); | |
220 | cha = ((Int_t) idChamber / kNplan); | |
221 | pla = ((Int_t) idChamber % kNplan); | |
793ff80c | 222 | det = fGeometry->GetDetector(pla,cha,sec); |
82bbf98a | 223 | |
332e9569 | 224 | AddHit(gAlice->CurrentTrack(),det,hits,0,kTRUE); |
d3f347ff | 225 | |
fe4da5cc | 226 | } |
d3f347ff | 227 | |
fe4da5cc | 228 | } |
d3f347ff | 229 | |
fe4da5cc | 230 | } |