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f7336fa3 | 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 | $Log$ | |
b42a9f88 | 18 | Revision 1.8 2001/03/13 09:30:35 cblume |
19 | Update of digitization. Moved digit branch definition to AliTRD | |
20 | ||
6244debe | 21 | Revision 1.7 2001/02/14 18:22:26 cblume |
22 | Change in the geometry of the padplane | |
23 | ||
71d9fa7b | 24 | Revision 1.6 2000/11/01 14:53:20 cblume |
25 | Merge with TRD-develop | |
26 | ||
793ff80c | 27 | Revision 1.1.4.7 2000/10/16 01:16:53 cblume |
28 | Changed timebin 0 to be the one closest to the readout | |
29 | ||
30 | Revision 1.1.4.6 2000/10/15 23:35:57 cblume | |
31 | Include geometry constants as static member | |
32 | ||
33 | Revision 1.1.4.5 2000/10/06 16:49:46 cblume | |
34 | Made Getters const | |
35 | ||
36 | Revision 1.1.4.4 2000/10/04 16:34:58 cblume | |
37 | Replace include files by forward declarations | |
38 | ||
39 | Revision 1.1.4.3 2000/09/22 14:43:40 cblume | |
40 | Allow the pad/timebin-dimensions to be changed after initialization | |
41 | ||
42 | Revision 1.1.4.2 2000/09/18 13:37:01 cblume | |
43 | Minor coding corrections | |
44 | ||
45 | Revision 1.5 2000/10/02 21:28:19 fca | |
46 | Removal of useless dependecies via forward declarations | |
47 | ||
48 | Revision 1.4 2000/06/08 18:32:58 cblume | |
49 | Make code compliant to coding conventions | |
50 | ||
51 | Revision 1.3 2000/06/07 16:25:37 cblume | |
52 | Try to remove compiler warnings on Sun and HP | |
53 | ||
54 | Revision 1.2 2000/05/08 16:17:27 cblume | |
55 | Merge TRD-develop | |
56 | ||
57 | Revision 1.1.4.1 2000/05/08 14:45:55 cblume | |
58 | Bug fix in RotateBack(). Geometry update | |
59 | ||
94de3818 | 60 | Revision 1.4 2000/06/08 18:32:58 cblume |
61 | Make code compliant to coding conventions | |
62 | ||
8230f242 | 63 | Revision 1.3 2000/06/07 16:25:37 cblume |
64 | Try to remove compiler warnings on Sun and HP | |
65 | ||
9d0b222b | 66 | Revision 1.2 2000/05/08 16:17:27 cblume |
67 | Merge TRD-develop | |
68 | ||
6f1e466d | 69 | Revision 1.1.4.1 2000/05/08 14:45:55 cblume |
70 | Bug fix in RotateBack(). Geometry update | |
71 | ||
72 | Revision 1.1 2000/02/28 19:00:44 cblume | |
73 | Add new TRD classes | |
74 | ||
f7336fa3 | 75 | */ |
76 | ||
77 | /////////////////////////////////////////////////////////////////////////////// | |
78 | // // | |
79 | // TRD geometry class // | |
80 | // // | |
81 | /////////////////////////////////////////////////////////////////////////////// | |
82 | ||
793ff80c | 83 | #include "AliMC.h" |
84 | ||
f7336fa3 | 85 | #include "AliTRDgeometry.h" |
86 | #include "AliTRDrecPoint.h" | |
94de3818 | 87 | #include "AliMC.h" |
f7336fa3 | 88 | |
89 | ClassImp(AliTRDgeometry) | |
90 | ||
793ff80c | 91 | //_____________________________________________________________________________ |
92 | ||
93 | // | |
94 | // The geometry constants | |
95 | // | |
96 | const Int_t AliTRDgeometry::fgkNsect = kNsect; | |
97 | const Int_t AliTRDgeometry::fgkNplan = kNplan; | |
98 | const Int_t AliTRDgeometry::fgkNcham = kNcham; | |
99 | const Int_t AliTRDgeometry::fgkNdet = kNdet; | |
100 | ||
101 | // | |
102 | // Dimensions of the detector | |
103 | // | |
104 | const Float_t AliTRDgeometry::fgkRmin = 294.0; | |
105 | const Float_t AliTRDgeometry::fgkRmax = 368.0; | |
106 | ||
107 | const Float_t AliTRDgeometry::fgkZmax1 = 378.35; | |
108 | const Float_t AliTRDgeometry::fgkZmax2 = 302.0; | |
109 | ||
110 | const Float_t AliTRDgeometry::fgkSheight = 74.0; | |
111 | const Float_t AliTRDgeometry::fgkSwidth1 = 99.613; | |
112 | const Float_t AliTRDgeometry::fgkSwidth2 = 125.707; | |
113 | const Float_t AliTRDgeometry::fgkSlenTR1 = 751.0; | |
114 | const Float_t AliTRDgeometry::fgkSlenTR2 = 313.5; | |
115 | const Float_t AliTRDgeometry::fgkSlenTR3 = 159.5; | |
116 | ||
117 | const Float_t AliTRDgeometry::fgkCheight = 11.0; | |
118 | const Float_t AliTRDgeometry::fgkCspace = 1.6; | |
119 | const Float_t AliTRDgeometry::fgkCathick = 1.0; | |
120 | const Float_t AliTRDgeometry::fgkCcthick = 1.0; | |
121 | const Float_t AliTRDgeometry::fgkCaframe = 2.675; | |
122 | const Float_t AliTRDgeometry::fgkCcframe = AliTRDgeometry::fgkCheight | |
123 | - AliTRDgeometry::fgkCaframe; | |
124 | ||
125 | // | |
126 | // Thickness of the the material layers | |
127 | // | |
128 | const Float_t AliTRDgeometry::fgkSeThick = 0.02; | |
b42a9f88 | 129 | const Float_t AliTRDgeometry::fgkRaThick = 4.78; |
793ff80c | 130 | const Float_t AliTRDgeometry::fgkPeThick = 0.20; |
131 | const Float_t AliTRDgeometry::fgkMyThick = 0.005; | |
132 | const Float_t AliTRDgeometry::fgkXeThick = 3.5; | |
133 | const Float_t AliTRDgeometry::fgkDrThick = 3.0; | |
134 | const Float_t AliTRDgeometry::fgkAmThick = AliTRDgeometry::fgkXeThick | |
135 | - AliTRDgeometry::fgkDrThick; | |
136 | const Float_t AliTRDgeometry::fgkCuThick = 0.001; | |
137 | const Float_t AliTRDgeometry::fgkSuThick = 0.06; | |
138 | const Float_t AliTRDgeometry::fgkFeThick = 0.0044; | |
139 | const Float_t AliTRDgeometry::fgkCoThick = 0.02; | |
140 | const Float_t AliTRDgeometry::fgkWaThick = 0.01; | |
141 | ||
142 | // | |
143 | // Position of the material layers | |
144 | // | |
b42a9f88 | 145 | const Float_t AliTRDgeometry::fgkSeZpos = -4.14; |
146 | const Float_t AliTRDgeometry::fgkRaZpos = -1.74; | |
793ff80c | 147 | const Float_t AliTRDgeometry::fgkPeZpos = 0.0000; |
b42a9f88 | 148 | const Float_t AliTRDgeometry::fgkMyZpos = 0.6550; |
149 | const Float_t AliTRDgeometry::fgkDrZpos = 2.1600; | |
150 | const Float_t AliTRDgeometry::fgkAmZpos = 3.9100; | |
793ff80c | 151 | const Float_t AliTRDgeometry::fgkCuZpos = -1.3370; |
152 | const Float_t AliTRDgeometry::fgkSuZpos = 0.0000; | |
153 | const Float_t AliTRDgeometry::fgkFeZpos = 1.3053; | |
154 | const Float_t AliTRDgeometry::fgkCoZpos = 1.3175; | |
155 | const Float_t AliTRDgeometry::fgkWaZpos = 1.3325; | |
156 | ||
f7336fa3 | 157 | //_____________________________________________________________________________ |
158 | AliTRDgeometry::AliTRDgeometry():AliGeometry() | |
159 | { | |
160 | // | |
161 | // AliTRDgeometry default constructor | |
162 | // | |
163 | ||
164 | Init(); | |
165 | ||
166 | } | |
167 | ||
168 | //_____________________________________________________________________________ | |
169 | AliTRDgeometry::~AliTRDgeometry() | |
170 | { | |
8230f242 | 171 | // |
172 | // AliTRDgeometry destructor | |
173 | // | |
f7336fa3 | 174 | |
175 | } | |
176 | ||
177 | //_____________________________________________________________________________ | |
178 | void AliTRDgeometry::Init() | |
179 | { | |
180 | // | |
181 | // Initializes the geometry parameter | |
182 | // | |
183 | ||
793ff80c | 184 | Int_t isect; |
f7336fa3 | 185 | |
186 | // The width of the chambers | |
793ff80c | 187 | fCwidth[0] = 99.6; |
188 | fCwidth[1] = 104.1; | |
189 | fCwidth[2] = 108.5; | |
190 | fCwidth[3] = 112.9; | |
191 | fCwidth[4] = 117.4; | |
192 | fCwidth[5] = 121.8; | |
f7336fa3 | 193 | |
194 | // The maximum number of pads | |
195 | // and the position of pad 0,0,0 | |
196 | // | |
197 | // chambers seen from the top: | |
198 | // +----------------------------+ | |
199 | // | | | |
793ff80c | 200 | // | | ^ |
201 | // | | rphi| | |
202 | // | | | | |
203 | // |0 | | | |
204 | // +----------------------------+ +------> | |
f7336fa3 | 205 | // z |
793ff80c | 206 | // chambers seen from the side: ^ |
207 | // +----------------------------+ drift| | |
208 | // |0 | | | |
209 | // | | | | |
210 | // +----------------------------+ +------> | |
f7336fa3 | 211 | // z |
212 | // | |
793ff80c | 213 | // IMPORTANT: time bin 0 is now the one closest to the readout !!! |
214 | // | |
f7336fa3 | 215 | |
216 | // The pad column (rphi-direction) | |
71d9fa7b | 217 | SetNColPad(96); |
793ff80c | 218 | |
6244debe | 219 | // The time bucket. Default is 100 ns timbin size |
220 | SetNTimeBin(15); | |
793ff80c | 221 | |
222 | // The rotation matrix elements | |
223 | Float_t phi = 0; | |
224 | for (isect = 0; isect < fgkNsect; isect++) { | |
225 | phi = -2.0 * kPI / (Float_t) fgkNsect * ((Float_t) isect + 0.5); | |
226 | fRotA11[isect] = TMath::Cos(phi); | |
227 | fRotA12[isect] = TMath::Sin(phi); | |
228 | fRotA21[isect] = TMath::Sin(phi); | |
229 | fRotA22[isect] = TMath::Cos(phi); | |
230 | phi = -1.0 * phi; | |
231 | fRotB11[isect] = TMath::Cos(phi); | |
232 | fRotB12[isect] = TMath::Sin(phi); | |
233 | fRotB21[isect] = TMath::Sin(phi); | |
234 | fRotB22[isect] = TMath::Cos(phi); | |
235 | } | |
236 | ||
237 | } | |
238 | ||
239 | //_____________________________________________________________________________ | |
71d9fa7b | 240 | void AliTRDgeometry::SetNColPad(Int_t npad) |
793ff80c | 241 | { |
242 | // | |
71d9fa7b | 243 | // Redefines the number of pads in column direction |
793ff80c | 244 | // |
245 | ||
793ff80c | 246 | for (Int_t iplan = 0; iplan < fgkNplan; iplan++) { |
71d9fa7b | 247 | fColMax[iplan] = npad; |
248 | fColPadSize[iplan] = (fCwidth[iplan] - 2. * fgkCcthick) / fColMax[iplan]; | |
249 | fCol0[iplan] = -fCwidth[iplan]/2. + fgkCcthick; | |
f7336fa3 | 250 | } |
251 | ||
793ff80c | 252 | } |
253 | ||
254 | //_____________________________________________________________________________ | |
71d9fa7b | 255 | void AliTRDgeometry::SetNTimeBin(Int_t nbin) |
793ff80c | 256 | { |
257 | // | |
71d9fa7b | 258 | // Redefines the number of time bins |
793ff80c | 259 | // |
260 | ||
71d9fa7b | 261 | fTimeMax = nbin; |
262 | fTimeBinSize = fgkDrThick / ((Float_t) fTimeMax); | |
793ff80c | 263 | for (Int_t iplan = 0; iplan < fgkNplan; iplan++) { |
264 | fTime0[iplan] = fgkRmin + fgkCcframe/2. + fgkDrZpos + 0.5 * fgkDrThick | |
265 | + iplan * (fgkCheight + fgkCspace); | |
266 | } | |
f7336fa3 | 267 | |
268 | } | |
269 | ||
270 | //_____________________________________________________________________________ | |
271 | void AliTRDgeometry::CreateGeometry(Int_t *idtmed) | |
272 | { | |
273 | // | |
274 | // Create the TRD geometry | |
275 | // | |
276 | // Author: Christoph Blume (C.Blume@gsi.de) 20/07/99 | |
277 | // | |
278 | // The volumes: | |
279 | // TRD1-3 (Air) --- The TRD mother volumes for one sector. | |
280 | // To be placed into the spaceframe. | |
281 | // | |
282 | // UAFI(/M/O) (Al) --- The aluminum frame of the inner(/middle/outer) chambers (readout) | |
283 | // UCFI(/M/O) (C) --- The carbon frame of the inner(/middle/outer) chambers | |
284 | // (driftchamber + radiator) | |
285 | // UAII(/M/O) (Air) --- The inner part of the readout of the inner(/middle/outer) chambers | |
286 | // UFII(/M/O) (Air) --- The inner part of the chamner and radiator of the | |
287 | // inner(/middle/outer) chambers | |
288 | // | |
289 | // The material layers in one chamber: | |
290 | // UL01 (G10) --- The gas seal of the radiator | |
291 | // UL02 (CO2) --- The gas in the radiator | |
292 | // UL03 (PE) --- The foil stack | |
293 | // UL04 (Mylar) --- Entrance window to the driftvolume and HV-cathode | |
294 | // UL05 (Xe) --- The driftvolume | |
295 | // UL06 (Xe) --- The amplification region | |
296 | // | |
297 | // UL07 (Cu) --- The pad plane | |
298 | // UL08 (G10) --- The Nomex honeycomb support structure | |
299 | // UL09 (Cu) --- FEE and signal lines | |
300 | // UL10 (PE) --- The cooling devices | |
301 | // UL11 (Water) --- The cooling water | |
302 | ||
8230f242 | 303 | const Int_t kNparCha = 3; |
f7336fa3 | 304 | |
8230f242 | 305 | Float_t parDum[3]; |
306 | Float_t parCha[kNparCha]; | |
f7336fa3 | 307 | |
308 | Float_t xpos, ypos, zpos; | |
309 | ||
310 | // The aluminum frames - readout + electronics (Al) | |
311 | // The inner chambers | |
8230f242 | 312 | gMC->Gsvolu("UAFI","BOX ",idtmed[1301-1],parDum,0); |
f7336fa3 | 313 | // The middle chambers |
8230f242 | 314 | gMC->Gsvolu("UAFM","BOX ",idtmed[1301-1],parDum,0); |
f7336fa3 | 315 | // The outer chambers |
8230f242 | 316 | gMC->Gsvolu("UAFO","BOX ",idtmed[1301-1],parDum,0); |
f7336fa3 | 317 | |
318 | // The inner part of the aluminum frames (Air) | |
319 | // The inner chambers | |
8230f242 | 320 | gMC->Gsvolu("UAII","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 321 | // The middle chambers |
8230f242 | 322 | gMC->Gsvolu("UAIM","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 323 | // The outer chambers |
8230f242 | 324 | gMC->Gsvolu("UAIO","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 325 | |
326 | // The carbon frames - radiator + driftchamber (C) | |
327 | // The inner chambers | |
8230f242 | 328 | gMC->Gsvolu("UCFI","BOX ",idtmed[1307-1],parDum,0); |
f7336fa3 | 329 | // The middle chambers |
8230f242 | 330 | gMC->Gsvolu("UCFM","BOX ",idtmed[1307-1],parDum,0); |
f7336fa3 | 331 | // The outer chambers |
8230f242 | 332 | gMC->Gsvolu("UCFO","BOX ",idtmed[1307-1],parDum,0); |
f7336fa3 | 333 | |
334 | // The inner part of the carbon frames (Air) | |
335 | // The inner chambers | |
8230f242 | 336 | gMC->Gsvolu("UCII","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 337 | // The middle chambers |
8230f242 | 338 | gMC->Gsvolu("UCIM","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 339 | // The outer chambers |
8230f242 | 340 | gMC->Gsvolu("UCIO","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 341 | |
342 | // The material layers inside the chambers | |
8230f242 | 343 | parCha[0] = -1.; |
344 | parCha[1] = -1.; | |
f7336fa3 | 345 | // G10 layer (radiator seal) |
793ff80c | 346 | parCha[2] = fgkSeThick/2; |
8230f242 | 347 | gMC->Gsvolu("UL01","BOX ",idtmed[1313-1],parCha,kNparCha); |
f7336fa3 | 348 | // CO2 layer (radiator) |
793ff80c | 349 | parCha[2] = fgkRaThick/2; |
8230f242 | 350 | gMC->Gsvolu("UL02","BOX ",idtmed[1312-1],parCha,kNparCha); |
f7336fa3 | 351 | // PE layer (radiator) |
793ff80c | 352 | parCha[2] = fgkPeThick/2; |
8230f242 | 353 | gMC->Gsvolu("UL03","BOX ",idtmed[1303-1],parCha,kNparCha); |
f7336fa3 | 354 | // Mylar layer (entrance window + HV cathode) |
793ff80c | 355 | parCha[2] = fgkMyThick/2; |
8230f242 | 356 | gMC->Gsvolu("UL04","BOX ",idtmed[1308-1],parCha,kNparCha); |
f7336fa3 | 357 | // Xe/Isobutane layer (drift volume, sensitive) |
793ff80c | 358 | parCha[2] = fgkDrThick/2.; |
8230f242 | 359 | gMC->Gsvolu("UL05","BOX ",idtmed[1309-1],parCha,kNparCha); |
f7336fa3 | 360 | // Xe/Isobutane layer (amplification volume, not sensitive) |
793ff80c | 361 | parCha[2] = fgkAmThick/2.; |
8230f242 | 362 | gMC->Gsvolu("UL06","BOX ",idtmed[1309-1],parCha,kNparCha); |
f7336fa3 | 363 | |
364 | // Cu layer (pad plane) | |
793ff80c | 365 | parCha[2] = fgkCuThick/2; |
8230f242 | 366 | gMC->Gsvolu("UL07","BOX ",idtmed[1305-1],parCha,kNparCha); |
f7336fa3 | 367 | // G10 layer (support structure) |
793ff80c | 368 | parCha[2] = fgkSuThick/2; |
8230f242 | 369 | gMC->Gsvolu("UL08","BOX ",idtmed[1313-1],parCha,kNparCha); |
f7336fa3 | 370 | // Cu layer (FEE + signal lines) |
793ff80c | 371 | parCha[2] = fgkFeThick/2; |
8230f242 | 372 | gMC->Gsvolu("UL09","BOX ",idtmed[1305-1],parCha,kNparCha); |
f7336fa3 | 373 | // PE layer (cooling devices) |
793ff80c | 374 | parCha[2] = fgkCoThick/2; |
8230f242 | 375 | gMC->Gsvolu("UL10","BOX ",idtmed[1303-1],parCha,kNparCha); |
f7336fa3 | 376 | // Water layer (cooling) |
793ff80c | 377 | parCha[2] = fgkWaThick/2; |
8230f242 | 378 | gMC->Gsvolu("UL11","BOX ",idtmed[1314-1],parCha,kNparCha); |
f7336fa3 | 379 | |
380 | // Position the layers in the chambers | |
381 | xpos = 0; | |
382 | ypos = 0; | |
383 | ||
384 | // G10 layer (radiator seal) | |
793ff80c | 385 | zpos = fgkSeZpos; |
f7336fa3 | 386 | gMC->Gspos("UL01",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
387 | gMC->Gspos("UL01",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
388 | gMC->Gspos("UL01",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
389 | // CO2 layer (radiator) | |
793ff80c | 390 | zpos = fgkRaZpos; |
f7336fa3 | 391 | gMC->Gspos("UL02",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
392 | gMC->Gspos("UL02",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
393 | gMC->Gspos("UL02",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
394 | // PE layer (radiator) | |
395 | zpos = 0; | |
396 | gMC->Gspos("UL03",1,"UL02",xpos,ypos,zpos,0,"ONLY"); | |
397 | // Mylar layer (entrance window + HV cathode) | |
793ff80c | 398 | zpos = fgkMyZpos; |
f7336fa3 | 399 | gMC->Gspos("UL04",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
400 | gMC->Gspos("UL04",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
401 | gMC->Gspos("UL04",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
402 | // Xe/Isobutane layer (drift volume) | |
793ff80c | 403 | zpos = fgkDrZpos; |
f7336fa3 | 404 | gMC->Gspos("UL05",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
405 | gMC->Gspos("UL05",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
406 | gMC->Gspos("UL05",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
407 | // Xe/Isobutane layer (amplification volume) | |
793ff80c | 408 | zpos = fgkAmZpos; |
f7336fa3 | 409 | gMC->Gspos("UL06",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
410 | gMC->Gspos("UL06",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
411 | gMC->Gspos("UL06",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
412 | ||
413 | // Cu layer (pad plane) | |
793ff80c | 414 | zpos = fgkCuZpos; |
f7336fa3 | 415 | gMC->Gspos("UL07",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
416 | gMC->Gspos("UL07",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
417 | gMC->Gspos("UL07",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
418 | // G10 layer (support structure) | |
793ff80c | 419 | zpos = fgkSuZpos; |
f7336fa3 | 420 | gMC->Gspos("UL08",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
421 | gMC->Gspos("UL08",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
422 | gMC->Gspos("UL08",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
423 | // Cu layer (FEE + signal lines) | |
793ff80c | 424 | zpos = fgkFeZpos; |
f7336fa3 | 425 | gMC->Gspos("UL09",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
426 | gMC->Gspos("UL09",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
427 | gMC->Gspos("UL09",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
428 | // PE layer (cooling devices) | |
793ff80c | 429 | zpos = fgkCoZpos; |
f7336fa3 | 430 | gMC->Gspos("UL10",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
431 | gMC->Gspos("UL10",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
432 | gMC->Gspos("UL10",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
433 | // Water layer (cooling) | |
793ff80c | 434 | zpos = fgkWaZpos; |
f7336fa3 | 435 | gMC->Gspos("UL11",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
436 | gMC->Gspos("UL11",1,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
437 | gMC->Gspos("UL11",1,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
438 | ||
439 | } | |
440 | ||
441 | //_____________________________________________________________________________ | |
94de3818 | 442 | Bool_t AliTRDgeometry::Local2Global(Int_t idet, Float_t *local, Float_t *global) const |
f7336fa3 | 443 | { |
444 | // | |
445 | // Converts local pad-coordinates (row,col,time) into | |
446 | // global ALICE reference frame coordinates (x,y,z) | |
447 | // | |
448 | ||
793ff80c | 449 | Int_t icham = GetChamber(idet); // Chamber info (0-4) |
450 | Int_t isect = GetSector(idet); // Sector info (0-17) | |
451 | Int_t iplan = GetPlane(idet); // Plane info (0-5) | |
f7336fa3 | 452 | |
6f1e466d | 453 | return Local2Global(iplan,icham,isect,local,global); |
f7336fa3 | 454 | |
455 | } | |
456 | ||
457 | //_____________________________________________________________________________ | |
458 | Bool_t AliTRDgeometry::Local2Global(Int_t iplan, Int_t icham, Int_t isect | |
94de3818 | 459 | , Float_t *local, Float_t *global) const |
f7336fa3 | 460 | { |
461 | // | |
462 | // Converts local pad-coordinates (row,col,time) into | |
463 | // global ALICE reference frame coordinates (x,y,z) | |
464 | // | |
465 | ||
793ff80c | 466 | Int_t idet = GetDetector(iplan,icham,isect); // Detector number |
f7336fa3 | 467 | |
793ff80c | 468 | Float_t padRow = local[0]; // Pad Row position |
469 | Float_t padCol = local[1]; // Pad Column position | |
470 | Float_t timeSlice = local[2]; // Time "position" | |
f7336fa3 | 471 | |
793ff80c | 472 | Float_t row0 = GetRow0(iplan,icham,isect); |
473 | Float_t col0 = GetCol0(iplan); | |
474 | Float_t time0 = GetTime0(iplan); | |
f7336fa3 | 475 | |
793ff80c | 476 | Float_t rot[3]; |
f7336fa3 | 477 | |
478 | // calculate (x,y,z) position in rotated chamber | |
71d9fa7b | 479 | rot[0] = time0 - timeSlice * fTimeBinSize; |
480 | rot[1] = col0 + padCol * fColPadSize[iplan]; | |
481 | rot[2] = row0 + padRow * fRowPadSize[iplan][icham][isect]; | |
f7336fa3 | 482 | |
483 | // Rotate back to original position | |
484 | return RotateBack(idet,rot,global); | |
485 | ||
486 | } | |
487 | ||
488 | //_____________________________________________________________________________ | |
793ff80c | 489 | Bool_t AliTRDgeometry::Rotate(Int_t d, Float_t *pos, Float_t *rot) const |
f7336fa3 | 490 | { |
491 | // | |
492 | // Rotates all chambers in the position of sector 0 and transforms | |
493 | // the coordinates in the ALICE restframe <pos> into the | |
494 | // corresponding local frame <rot>. | |
495 | // | |
496 | ||
793ff80c | 497 | Int_t sector = GetSector(d); |
f7336fa3 | 498 | |
793ff80c | 499 | rot[0] = pos[0] * fRotA11[sector] + pos[1] * fRotA12[sector]; |
500 | rot[1] = -pos[0] * fRotA21[sector] + pos[1] * fRotA22[sector]; | |
f7336fa3 | 501 | rot[2] = pos[2]; |
502 | ||
503 | return kTRUE; | |
504 | ||
505 | } | |
506 | ||
507 | //_____________________________________________________________________________ | |
94de3818 | 508 | Bool_t AliTRDgeometry::RotateBack(Int_t d, Float_t *rot, Float_t *pos) const |
f7336fa3 | 509 | { |
510 | // | |
511 | // Rotates a chambers from the position of sector 0 into its | |
512 | // original position and transforms the corresponding local frame | |
513 | // coordinates <rot> into the coordinates of the ALICE restframe <pos>. | |
514 | // | |
515 | ||
793ff80c | 516 | Int_t sector = GetSector(d); |
f7336fa3 | 517 | |
793ff80c | 518 | pos[0] = rot[0] * fRotB11[sector] + rot[1] * fRotB12[sector]; |
519 | pos[1] = -rot[0] * fRotB21[sector] + rot[1] * fRotB22[sector]; | |
6f1e466d | 520 | pos[2] = rot[2]; |
f7336fa3 | 521 | |
522 | return kTRUE; | |
523 | ||
524 | } | |
525 | ||
526 | //_____________________________________________________________________________ | |
94de3818 | 527 | Int_t AliTRDgeometry::GetDetector(Int_t p, Int_t c, Int_t s) const |
f7336fa3 | 528 | { |
529 | // | |
530 | // Convert plane / chamber / sector into detector number | |
531 | // | |
532 | ||
793ff80c | 533 | return (p + c * fgkNplan + s * fgkNplan * fgkNcham); |
f7336fa3 | 534 | |
535 | } | |
536 | ||
537 | //_____________________________________________________________________________ | |
94de3818 | 538 | Int_t AliTRDgeometry::GetPlane(Int_t d) const |
f7336fa3 | 539 | { |
540 | // | |
541 | // Reconstruct the plane number from the detector number | |
542 | // | |
543 | ||
793ff80c | 544 | return ((Int_t) (d % fgkNplan)); |
f7336fa3 | 545 | |
546 | } | |
547 | ||
548 | //_____________________________________________________________________________ | |
94de3818 | 549 | Int_t AliTRDgeometry::GetChamber(Int_t d) const |
f7336fa3 | 550 | { |
551 | // | |
552 | // Reconstruct the chamber number from the detector number | |
553 | // | |
554 | ||
793ff80c | 555 | return ((Int_t) (d % (fgkNplan * fgkNcham)) / fgkNplan); |
f7336fa3 | 556 | |
557 | } | |
558 | ||
559 | //_____________________________________________________________________________ | |
94de3818 | 560 | Int_t AliTRDgeometry::GetSector(Int_t d) const |
f7336fa3 | 561 | { |
562 | // | |
563 | // Reconstruct the sector number from the detector number | |
564 | // | |
565 | ||
793ff80c | 566 | return ((Int_t) (d / (fgkNplan * fgkNcham))); |
f7336fa3 | 567 | |
568 | } | |
569 | ||
570 | //_____________________________________________________________________________ | |
793ff80c | 571 | void AliTRDgeometry::GetGlobal(const AliRecPoint *p, TVector3 &pos |
572 | , TMatrix &mat) const | |
f7336fa3 | 573 | { |
574 | // | |
575 | // Returns the global coordinate and error matrix of a AliTRDrecPoint | |
576 | // | |
577 | ||
578 | GetGlobal(p,pos); | |
9d0b222b | 579 | mat.Zero(); |
f7336fa3 | 580 | |
581 | } | |
582 | ||
583 | //_____________________________________________________________________________ | |
94de3818 | 584 | void AliTRDgeometry::GetGlobal(const AliRecPoint *p, TVector3 &pos) const |
f7336fa3 | 585 | { |
586 | // | |
587 | // Returns the global coordinate and error matrix of a AliTRDrecPoint | |
588 | // | |
589 | ||
590 | Int_t detector = ((AliTRDrecPoint *) p)->GetDetector(); | |
591 | ||
592 | Float_t global[3]; | |
593 | Float_t local[3]; | |
6f1e466d | 594 | local[0] = ((AliTRDrecPoint *) p)->GetLocalRow(); |
595 | local[1] = ((AliTRDrecPoint *) p)->GetLocalCol(); | |
596 | local[2] = ((AliTRDrecPoint *) p)->GetLocalTime(); | |
f7336fa3 | 597 | |
598 | if (Local2Global(detector,local,global)) { | |
599 | pos.SetX(global[0]); | |
600 | pos.SetY(global[1]); | |
601 | pos.SetZ(global[2]); | |
602 | } | |
603 | else { | |
604 | pos.SetX(0.0); | |
605 | pos.SetY(0.0); | |
606 | pos.SetZ(0.0); | |
607 | } | |
608 | ||
609 | } |