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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 | $Log$ | |
793ff80c | 18 | Revision 1.14.2.3 2000/10/06 16:49:46 cblume |
19 | Made Getters const | |
20 | ||
21 | Revision 1.14.2.2 2000/10/04 16:34:58 cblume | |
22 | Replace include files by forward declarations | |
23 | ||
24 | Revision 1.14.2.1 2000/09/18 13:48:18 cblume | |
25 | Adapt to new AliTRDhit | |
26 | ||
27 | Revision 1.16 2000/06/08 18:32:58 cblume | |
28 | Make code compliant to coding conventions | |
29 | ||
8230f242 | 30 | Revision 1.15 2000/06/07 16:25:37 cblume |
31 | Try to remove compiler warnings on Sun and HP | |
32 | ||
9d0b222b | 33 | Revision 1.14 2000/02/28 19:10:26 cblume |
34 | Include the new TRD classes | |
35 | ||
851d3db9 | 36 | Revision 1.13.4.1 2000/02/28 18:01:53 cblume |
37 | Change to new hit version and introduce geometry class | |
38 | ||
39 | Revision 1.13 1999/11/05 22:50:28 fca | |
40 | Do not use Atan, removed from ROOT too | |
41 | ||
90f8d287 | 42 | Revision 1.12 1999/11/02 16:35:56 fca |
43 | New version of TRD introduced | |
44 | ||
5c7f4665 | 45 | Revision 1.11 1999/11/01 20:41:51 fca |
46 | Added protections against using the wrong version of FRAME | |
47 | ||
ab76897d | 48 | Revision 1.10 1999/09/29 09:24:35 fca |
49 | Introduction of the Copyright and cvs Log | |
50 | ||
4c039060 | 51 | */ |
52 | ||
fe4da5cc | 53 | /////////////////////////////////////////////////////////////////////////////// |
54 | // // | |
5c7f4665 | 55 | // Transition Radiation Detector version 0 -- fast simulator // |
fe4da5cc | 56 | // // |
57 | //Begin_Html | |
58 | /* | |
5c7f4665 | 59 | <img src="picts/AliTRDfullClass.gif"> |
fe4da5cc | 60 | */ |
61 | //End_Html | |
62 | // // | |
63 | // // | |
64 | /////////////////////////////////////////////////////////////////////////////// | |
65 | ||
66 | #include <TMath.h> | |
67 | #include <TRandom.h> | |
68 | #include <TVector.h> | |
fe4da5cc | 69 | |
fe4da5cc | 70 | #include "AliRun.h" |
71 | #include "AliMC.h" | |
72 | #include "AliConst.h" | |
73 | ||
851d3db9 | 74 | #include "AliTRDv0.h" |
793ff80c | 75 | #include "AliTRDhit.h" |
851d3db9 | 76 | #include "AliTRDgeometry.h" |
fe4da5cc | 77 | |
851d3db9 | 78 | ClassImp(AliTRDv0) |
8230f242 | 79 | |
80 | //_____________________________________________________________________________ | |
81 | AliTRDv0::AliTRDv0():AliTRD() | |
82 | { | |
83 | // | |
84 | // AliTRDv0 default constructor | |
85 | // | |
86 | ||
87 | fIdSens = 0; | |
88 | fHitsOn = 0; | |
89 | ||
90 | fIdChamber1 = 0; | |
91 | fIdChamber2 = 0; | |
92 | fIdChamber3 = 0; | |
93 | ||
94 | } | |
95 | ||
fe4da5cc | 96 | //_____________________________________________________________________________ |
97 | AliTRDv0::AliTRDv0(const char *name, const char *title) | |
98 | :AliTRD(name, title) | |
99 | { | |
100 | // | |
101 | // Standard constructor for Transition Radiation Detector version 0 | |
102 | // | |
82bbf98a | 103 | |
104 | fIdSens = 0; | |
105 | fHitsOn = 0; | |
106 | ||
82bbf98a | 107 | fIdChamber1 = 0; |
108 | fIdChamber2 = 0; | |
109 | fIdChamber3 = 0; | |
110 | ||
fe4da5cc | 111 | } |
851d3db9 | 112 | |
8230f242 | 113 | //_____________________________________________________________________________ |
114 | AliTRDv0::~AliTRDv0() | |
115 | { | |
116 | // | |
117 | // AliTRDv0 destructor | |
118 | // | |
119 | ||
120 | } | |
121 | ||
fe4da5cc | 122 | //_____________________________________________________________________________ |
123 | void AliTRDv0::CreateGeometry() | |
124 | { | |
125 | // | |
82bbf98a | 126 | // Create the GEANT geometry for the Transition Radiation Detector - Version 0 |
127 | // This version covers the full azimuth. | |
d3f347ff | 128 | // |
d3f347ff | 129 | |
82bbf98a | 130 | // Check that FRAME is there otherwise we have no place where to put the TRD |
8230f242 | 131 | AliModule* frame = gAlice->GetModule("FRAME"); |
132 | if (!frame) return; | |
fe4da5cc | 133 | |
82bbf98a | 134 | // Define the chambers |
135 | AliTRD::CreateGeometry(); | |
fe4da5cc | 136 | |
fe4da5cc | 137 | } |
138 | ||
139 | //_____________________________________________________________________________ | |
140 | void AliTRDv0::CreateMaterials() | |
141 | { | |
142 | // | |
143 | // Create materials for the Transition Radiation Detector | |
144 | // | |
82bbf98a | 145 | |
fe4da5cc | 146 | AliTRD::CreateMaterials(); |
82bbf98a | 147 | |
fe4da5cc | 148 | } |
149 | ||
150 | //_____________________________________________________________________________ | |
151 | void AliTRDv0::Init() | |
152 | { | |
153 | // | |
851d3db9 | 154 | // Initialize Transition Radiation Detector after geometry is built |
fe4da5cc | 155 | // |
82bbf98a | 156 | |
fe4da5cc | 157 | AliTRD::Init(); |
82bbf98a | 158 | |
82bbf98a | 159 | // Identifier of the sensitive volume (amplification region) |
160 | fIdSens = gMC->VolId("UL06"); | |
161 | ||
82bbf98a | 162 | // Identifier of the TRD-driftchambers |
163 | fIdChamber1 = gMC->VolId("UCIO"); | |
164 | fIdChamber2 = gMC->VolId("UCIM"); | |
165 | fIdChamber3 = gMC->VolId("UCII"); | |
166 | ||
851d3db9 | 167 | printf(" Fast simulator\n\n"); |
5c7f4665 | 168 | for (Int_t i = 0; i < 80; i++) printf("*"); |
169 | printf("\n"); | |
170 | ||
fe4da5cc | 171 | } |
172 | ||
173 | //_____________________________________________________________________________ | |
174 | void AliTRDv0::StepManager() | |
175 | { | |
176 | // | |
177 | // Procedure called at every step in the TRD | |
82bbf98a | 178 | // Fast simulator. If switched on, a hit is produced when a track |
179 | // crosses the border between amplification region and pad plane. | |
fe4da5cc | 180 | // |
181 | ||
851d3db9 | 182 | Int_t pla = 0; |
183 | Int_t cha = 0; | |
184 | Int_t sec = 0; | |
82bbf98a | 185 | Int_t iIdSens, icSens; |
82bbf98a | 186 | Int_t iIdChamber, icChamber; |
187 | ||
793ff80c | 188 | Float_t hits[3]; |
189 | Int_t det; | |
fe4da5cc | 190 | |
0a6d8768 | 191 | TLorentzVector p; |
82bbf98a | 192 | TClonesArray &lhits = *fHits; |
fe4da5cc | 193 | |
82bbf98a | 194 | // Writing out hits enabled? |
195 | if (!(fHitsOn)) return; | |
fe4da5cc | 196 | |
fe4da5cc | 197 | // Use only charged tracks and count them only once per volume |
82bbf98a | 198 | if (gMC->TrackCharge() && |
199 | gMC->IsTrackExiting()) { | |
fe4da5cc | 200 | |
201 | // Check on sensitive volume | |
82bbf98a | 202 | iIdSens = gMC->CurrentVolID(icSens); |
203 | if (iIdSens == fIdSens) { | |
204 | ||
205 | gMC->TrackPosition(p); | |
206 | for (Int_t i = 0; i < 3; i++) hits[i] = p[i]; | |
82bbf98a | 207 | |
851d3db9 | 208 | // The sector number (0 - 17) |
209 | // The numbering goes clockwise and starts at y = 0 | |
210 | Float_t phi = kRaddeg*TMath::ATan2(hits[0],hits[1]); | |
211 | if (phi < 90.) | |
212 | phi = phi + 270.; | |
213 | else | |
214 | phi = phi - 90.; | |
215 | sec = ((Int_t) (phi / 20)); | |
82bbf98a | 216 | |
d3f347ff | 217 | // The chamber number |
851d3db9 | 218 | // 0: outer left |
219 | // 1: middle left | |
220 | // 2: inner | |
221 | // 3: middle right | |
222 | // 4: outer right | |
5c7f4665 | 223 | iIdChamber = gMC->CurrentVolOffID(1,icChamber); |
82bbf98a | 224 | if (iIdChamber == fIdChamber1) |
851d3db9 | 225 | cha = (hits[2] < 0 ? 0 : 4); |
82bbf98a | 226 | else if (iIdChamber == fIdChamber2) |
851d3db9 | 227 | cha = (hits[2] < 0 ? 1 : 3); |
82bbf98a | 228 | else if (iIdChamber == fIdChamber3) |
851d3db9 | 229 | cha = 2; |
82bbf98a | 230 | |
851d3db9 | 231 | // The plane number (0 - 5) |
232 | pla = icChamber - TMath::Nint((Float_t) (icChamber / 7)) * 6 - 1; | |
793ff80c | 233 | det = fGeometry->GetDetector(pla,cha,sec); |
82bbf98a | 234 | |
851d3db9 | 235 | new(lhits[fNhits++]) AliTRDhit(fIshunt |
236 | ,gAlice->CurrentTrack() | |
9d0b222b | 237 | ,det |
793ff80c | 238 | ,hits |
239 | ,0); | |
d3f347ff | 240 | |
fe4da5cc | 241 | } |
d3f347ff | 242 | |
fe4da5cc | 243 | } |
d3f347ff | 244 | |
fe4da5cc | 245 | } |