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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 | $Log$ | |
793ff80c | 18 | Revision 1.1.4.7 2000/10/16 01:16:53 cblume |
19 | Changed timebin 0 to be the one closest to the readout | |
20 | ||
21 | Revision 1.1.4.6 2000/10/15 23:35:57 cblume | |
22 | Include geometry constants as static member | |
23 | ||
24 | Revision 1.1.4.5 2000/10/06 16:49:46 cblume | |
25 | Made Getters const | |
26 | ||
27 | Revision 1.1.4.4 2000/10/04 16:34:58 cblume | |
28 | Replace include files by forward declarations | |
29 | ||
30 | Revision 1.1.4.3 2000/09/22 14:43:40 cblume | |
31 | Allow the pad/timebin-dimensions to be changed after initialization | |
32 | ||
33 | Revision 1.1.4.2 2000/09/18 13:37:01 cblume | |
34 | Minor coding corrections | |
35 | ||
36 | Revision 1.5 2000/10/02 21:28:19 fca | |
37 | Removal of useless dependecies via forward declarations | |
38 | ||
39 | Revision 1.4 2000/06/08 18:32:58 cblume | |
40 | Make code compliant to coding conventions | |
41 | ||
42 | Revision 1.3 2000/06/07 16:25:37 cblume | |
43 | Try to remove compiler warnings on Sun and HP | |
44 | ||
45 | Revision 1.2 2000/05/08 16:17:27 cblume | |
46 | Merge TRD-develop | |
47 | ||
48 | Revision 1.1.4.1 2000/05/08 14:45:55 cblume | |
49 | Bug fix in RotateBack(). Geometry update | |
50 | ||
94de3818 | 51 | Revision 1.4 2000/06/08 18:32:58 cblume |
52 | Make code compliant to coding conventions | |
53 | ||
8230f242 | 54 | Revision 1.3 2000/06/07 16:25:37 cblume |
55 | Try to remove compiler warnings on Sun and HP | |
56 | ||
9d0b222b | 57 | Revision 1.2 2000/05/08 16:17:27 cblume |
58 | Merge TRD-develop | |
59 | ||
6f1e466d | 60 | Revision 1.1.4.1 2000/05/08 14:45:55 cblume |
61 | Bug fix in RotateBack(). Geometry update | |
62 | ||
63 | Revision 1.1 2000/02/28 19:00:44 cblume | |
64 | Add new TRD classes | |
65 | ||
f7336fa3 | 66 | */ |
67 | ||
68 | /////////////////////////////////////////////////////////////////////////////// | |
69 | // // | |
70 | // TRD geometry class // | |
71 | // // | |
72 | /////////////////////////////////////////////////////////////////////////////// | |
73 | ||
793ff80c | 74 | #include "AliMC.h" |
75 | ||
f7336fa3 | 76 | #include "AliTRDgeometry.h" |
77 | #include "AliTRDrecPoint.h" | |
94de3818 | 78 | #include "AliMC.h" |
f7336fa3 | 79 | |
80 | ClassImp(AliTRDgeometry) | |
81 | ||
793ff80c | 82 | //_____________________________________________________________________________ |
83 | ||
84 | // | |
85 | // The geometry constants | |
86 | // | |
87 | const Int_t AliTRDgeometry::fgkNsect = kNsect; | |
88 | const Int_t AliTRDgeometry::fgkNplan = kNplan; | |
89 | const Int_t AliTRDgeometry::fgkNcham = kNcham; | |
90 | const Int_t AliTRDgeometry::fgkNdet = kNdet; | |
91 | ||
92 | // | |
93 | // Dimensions of the detector | |
94 | // | |
95 | const Float_t AliTRDgeometry::fgkRmin = 294.0; | |
96 | const Float_t AliTRDgeometry::fgkRmax = 368.0; | |
97 | ||
98 | const Float_t AliTRDgeometry::fgkZmax1 = 378.35; | |
99 | const Float_t AliTRDgeometry::fgkZmax2 = 302.0; | |
100 | ||
101 | const Float_t AliTRDgeometry::fgkSheight = 74.0; | |
102 | const Float_t AliTRDgeometry::fgkSwidth1 = 99.613; | |
103 | const Float_t AliTRDgeometry::fgkSwidth2 = 125.707; | |
104 | const Float_t AliTRDgeometry::fgkSlenTR1 = 751.0; | |
105 | const Float_t AliTRDgeometry::fgkSlenTR2 = 313.5; | |
106 | const Float_t AliTRDgeometry::fgkSlenTR3 = 159.5; | |
107 | ||
108 | const Float_t AliTRDgeometry::fgkCheight = 11.0; | |
109 | const Float_t AliTRDgeometry::fgkCspace = 1.6; | |
110 | const Float_t AliTRDgeometry::fgkCathick = 1.0; | |
111 | const Float_t AliTRDgeometry::fgkCcthick = 1.0; | |
112 | const Float_t AliTRDgeometry::fgkCaframe = 2.675; | |
113 | const Float_t AliTRDgeometry::fgkCcframe = AliTRDgeometry::fgkCheight | |
114 | - AliTRDgeometry::fgkCaframe; | |
115 | ||
116 | // | |
117 | // Thickness of the the material layers | |
118 | // | |
119 | const Float_t AliTRDgeometry::fgkSeThick = 0.02; | |
120 | const Float_t AliTRDgeometry::fgkRaThick = 4.8; | |
121 | const Float_t AliTRDgeometry::fgkPeThick = 0.20; | |
122 | const Float_t AliTRDgeometry::fgkMyThick = 0.005; | |
123 | const Float_t AliTRDgeometry::fgkXeThick = 3.5; | |
124 | const Float_t AliTRDgeometry::fgkDrThick = 3.0; | |
125 | const Float_t AliTRDgeometry::fgkAmThick = AliTRDgeometry::fgkXeThick | |
126 | - AliTRDgeometry::fgkDrThick; | |
127 | const Float_t AliTRDgeometry::fgkCuThick = 0.001; | |
128 | const Float_t AliTRDgeometry::fgkSuThick = 0.06; | |
129 | const Float_t AliTRDgeometry::fgkFeThick = 0.0044; | |
130 | const Float_t AliTRDgeometry::fgkCoThick = 0.02; | |
131 | const Float_t AliTRDgeometry::fgkWaThick = 0.01; | |
132 | ||
133 | // | |
134 | // Position of the material layers | |
135 | // | |
136 | const Float_t AliTRDgeometry::fgkSeZpos = -4.1525; | |
137 | const Float_t AliTRDgeometry::fgkRaZpos = -1.7425; | |
138 | const Float_t AliTRDgeometry::fgkPeZpos = 0.0000; | |
139 | const Float_t AliTRDgeometry::fgkMyZpos = 0.6600; | |
140 | const Float_t AliTRDgeometry::fgkDrZpos = 2.1625; | |
141 | const Float_t AliTRDgeometry::fgkAmZpos = 4.1125; | |
142 | const Float_t AliTRDgeometry::fgkCuZpos = -1.3370; | |
143 | const Float_t AliTRDgeometry::fgkSuZpos = 0.0000; | |
144 | const Float_t AliTRDgeometry::fgkFeZpos = 1.3053; | |
145 | const Float_t AliTRDgeometry::fgkCoZpos = 1.3175; | |
146 | const Float_t AliTRDgeometry::fgkWaZpos = 1.3325; | |
147 | ||
f7336fa3 | 148 | //_____________________________________________________________________________ |
149 | AliTRDgeometry::AliTRDgeometry():AliGeometry() | |
150 | { | |
151 | // | |
152 | // AliTRDgeometry default constructor | |
153 | // | |
154 | ||
155 | Init(); | |
156 | ||
157 | } | |
158 | ||
159 | //_____________________________________________________________________________ | |
160 | AliTRDgeometry::~AliTRDgeometry() | |
161 | { | |
8230f242 | 162 | // |
163 | // AliTRDgeometry destructor | |
164 | // | |
f7336fa3 | 165 | |
166 | } | |
167 | ||
168 | //_____________________________________________________________________________ | |
169 | void AliTRDgeometry::Init() | |
170 | { | |
171 | // | |
172 | // Initializes the geometry parameter | |
173 | // | |
174 | ||
793ff80c | 175 | Int_t isect; |
f7336fa3 | 176 | |
177 | // The width of the chambers | |
793ff80c | 178 | fCwidth[0] = 99.6; |
179 | fCwidth[1] = 104.1; | |
180 | fCwidth[2] = 108.5; | |
181 | fCwidth[3] = 112.9; | |
182 | fCwidth[4] = 117.4; | |
183 | fCwidth[5] = 121.8; | |
f7336fa3 | 184 | |
185 | // The maximum number of pads | |
186 | // and the position of pad 0,0,0 | |
187 | // | |
188 | // chambers seen from the top: | |
189 | // +----------------------------+ | |
190 | // | | | |
793ff80c | 191 | // | | ^ |
192 | // | | rphi| | |
193 | // | | | | |
194 | // |0 | | | |
195 | // +----------------------------+ +------> | |
f7336fa3 | 196 | // z |
793ff80c | 197 | // chambers seen from the side: ^ |
198 | // +----------------------------+ drift| | |
199 | // |0 | | | |
200 | // | | | | |
201 | // +----------------------------+ +------> | |
f7336fa3 | 202 | // z |
203 | // | |
793ff80c | 204 | // IMPORTANT: time bin 0 is now the one closest to the readout !!! |
205 | // | |
f7336fa3 | 206 | |
207 | // The pad column (rphi-direction) | |
793ff80c | 208 | SetColPadSize(1.0); |
209 | ||
210 | // The time bucket | |
211 | SetTimeBinSize(0.1); | |
212 | ||
213 | // The rotation matrix elements | |
214 | Float_t phi = 0; | |
215 | for (isect = 0; isect < fgkNsect; isect++) { | |
216 | phi = -2.0 * kPI / (Float_t) fgkNsect * ((Float_t) isect + 0.5); | |
217 | fRotA11[isect] = TMath::Cos(phi); | |
218 | fRotA12[isect] = TMath::Sin(phi); | |
219 | fRotA21[isect] = TMath::Sin(phi); | |
220 | fRotA22[isect] = TMath::Cos(phi); | |
221 | phi = -1.0 * phi; | |
222 | fRotB11[isect] = TMath::Cos(phi); | |
223 | fRotB12[isect] = TMath::Sin(phi); | |
224 | fRotB21[isect] = TMath::Sin(phi); | |
225 | fRotB22[isect] = TMath::Cos(phi); | |
226 | } | |
227 | ||
228 | } | |
229 | ||
230 | //_____________________________________________________________________________ | |
231 | void AliTRDgeometry::SetColPadSize(Float_t size) | |
232 | { | |
233 | // | |
234 | // Redefines the pad size in column direction | |
235 | // | |
236 | ||
237 | fColPadSize = size; | |
238 | for (Int_t iplan = 0; iplan < fgkNplan; iplan++) { | |
239 | fColMax[iplan] = 1 + TMath::Nint((fCwidth[iplan] - 2. * fgkCcthick) | |
f7336fa3 | 240 | / fColPadSize - 0.5); |
793ff80c | 241 | fCol0[iplan] = -fCwidth[iplan]/2. + fgkCcthick; |
f7336fa3 | 242 | } |
243 | ||
793ff80c | 244 | } |
245 | ||
246 | //_____________________________________________________________________________ | |
247 | void AliTRDgeometry::SetTimeBinSize(Float_t size) | |
248 | { | |
249 | // | |
250 | // Redefines the time bin size | |
251 | // | |
252 | ||
253 | fTimeBinSize = size; | |
254 | fTimeMax = 1 + TMath::Nint(fgkDrThick / fTimeBinSize - 0.5); | |
255 | for (Int_t iplan = 0; iplan < fgkNplan; iplan++) { | |
256 | fTime0[iplan] = fgkRmin + fgkCcframe/2. + fgkDrZpos + 0.5 * fgkDrThick | |
257 | + iplan * (fgkCheight + fgkCspace); | |
258 | } | |
f7336fa3 | 259 | |
260 | } | |
261 | ||
262 | //_____________________________________________________________________________ | |
263 | void AliTRDgeometry::CreateGeometry(Int_t *idtmed) | |
264 | { | |
265 | // | |
266 | // Create the TRD geometry | |
267 | // | |
268 | // Author: Christoph Blume (C.Blume@gsi.de) 20/07/99 | |
269 | // | |
270 | // The volumes: | |
271 | // TRD1-3 (Air) --- The TRD mother volumes for one sector. | |
272 | // To be placed into the spaceframe. | |
273 | // | |
274 | // UAFI(/M/O) (Al) --- The aluminum frame of the inner(/middle/outer) chambers (readout) | |
275 | // UCFI(/M/O) (C) --- The carbon frame of the inner(/middle/outer) chambers | |
276 | // (driftchamber + radiator) | |
277 | // UAII(/M/O) (Air) --- The inner part of the readout of the inner(/middle/outer) chambers | |
278 | // UFII(/M/O) (Air) --- The inner part of the chamner and radiator of the | |
279 | // inner(/middle/outer) chambers | |
280 | // | |
281 | // The material layers in one chamber: | |
282 | // UL01 (G10) --- The gas seal of the radiator | |
283 | // UL02 (CO2) --- The gas in the radiator | |
284 | // UL03 (PE) --- The foil stack | |
285 | // UL04 (Mylar) --- Entrance window to the driftvolume and HV-cathode | |
286 | // UL05 (Xe) --- The driftvolume | |
287 | // UL06 (Xe) --- The amplification region | |
288 | // | |
289 | // UL07 (Cu) --- The pad plane | |
290 | // UL08 (G10) --- The Nomex honeycomb support structure | |
291 | // UL09 (Cu) --- FEE and signal lines | |
292 | // UL10 (PE) --- The cooling devices | |
293 | // UL11 (Water) --- The cooling water | |
294 | ||
8230f242 | 295 | const Int_t kNparCha = 3; |
f7336fa3 | 296 | |
8230f242 | 297 | Float_t parDum[3]; |
298 | Float_t parCha[kNparCha]; | |
f7336fa3 | 299 | |
300 | Float_t xpos, ypos, zpos; | |
301 | ||
302 | // The aluminum frames - readout + electronics (Al) | |
303 | // The inner chambers | |
8230f242 | 304 | gMC->Gsvolu("UAFI","BOX ",idtmed[1301-1],parDum,0); |
f7336fa3 | 305 | // The middle chambers |
8230f242 | 306 | gMC->Gsvolu("UAFM","BOX ",idtmed[1301-1],parDum,0); |
f7336fa3 | 307 | // The outer chambers |
8230f242 | 308 | gMC->Gsvolu("UAFO","BOX ",idtmed[1301-1],parDum,0); |
f7336fa3 | 309 | |
310 | // The inner part of the aluminum frames (Air) | |
311 | // The inner chambers | |
8230f242 | 312 | gMC->Gsvolu("UAII","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 313 | // The middle chambers |
8230f242 | 314 | gMC->Gsvolu("UAIM","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 315 | // The outer chambers |
8230f242 | 316 | gMC->Gsvolu("UAIO","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 317 | |
318 | // The carbon frames - radiator + driftchamber (C) | |
319 | // The inner chambers | |
8230f242 | 320 | gMC->Gsvolu("UCFI","BOX ",idtmed[1307-1],parDum,0); |
f7336fa3 | 321 | // The middle chambers |
8230f242 | 322 | gMC->Gsvolu("UCFM","BOX ",idtmed[1307-1],parDum,0); |
f7336fa3 | 323 | // The outer chambers |
8230f242 | 324 | gMC->Gsvolu("UCFO","BOX ",idtmed[1307-1],parDum,0); |
f7336fa3 | 325 | |
326 | // The inner part of the carbon frames (Air) | |
327 | // The inner chambers | |
8230f242 | 328 | gMC->Gsvolu("UCII","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 329 | // The middle chambers |
8230f242 | 330 | gMC->Gsvolu("UCIM","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 331 | // The outer chambers |
8230f242 | 332 | gMC->Gsvolu("UCIO","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 333 | |
334 | // The material layers inside the chambers | |
8230f242 | 335 | parCha[0] = -1.; |
336 | parCha[1] = -1.; | |
f7336fa3 | 337 | // G10 layer (radiator seal) |
793ff80c | 338 | parCha[2] = fgkSeThick/2; |
8230f242 | 339 | gMC->Gsvolu("UL01","BOX ",idtmed[1313-1],parCha,kNparCha); |
f7336fa3 | 340 | // CO2 layer (radiator) |
793ff80c | 341 | parCha[2] = fgkRaThick/2; |
8230f242 | 342 | gMC->Gsvolu("UL02","BOX ",idtmed[1312-1],parCha,kNparCha); |
f7336fa3 | 343 | // PE layer (radiator) |
793ff80c | 344 | parCha[2] = fgkPeThick/2; |
8230f242 | 345 | gMC->Gsvolu("UL03","BOX ",idtmed[1303-1],parCha,kNparCha); |
f7336fa3 | 346 | // Mylar layer (entrance window + HV cathode) |
793ff80c | 347 | parCha[2] = fgkMyThick/2; |
8230f242 | 348 | gMC->Gsvolu("UL04","BOX ",idtmed[1308-1],parCha,kNparCha); |
f7336fa3 | 349 | // Xe/Isobutane layer (drift volume, sensitive) |
793ff80c | 350 | parCha[2] = fgkDrThick/2.; |
8230f242 | 351 | gMC->Gsvolu("UL05","BOX ",idtmed[1309-1],parCha,kNparCha); |
f7336fa3 | 352 | // Xe/Isobutane layer (amplification volume, not sensitive) |
793ff80c | 353 | parCha[2] = fgkAmThick/2.; |
8230f242 | 354 | gMC->Gsvolu("UL06","BOX ",idtmed[1309-1],parCha,kNparCha); |
f7336fa3 | 355 | |
356 | // Cu layer (pad plane) | |
793ff80c | 357 | parCha[2] = fgkCuThick/2; |
8230f242 | 358 | gMC->Gsvolu("UL07","BOX ",idtmed[1305-1],parCha,kNparCha); |
f7336fa3 | 359 | // G10 layer (support structure) |
793ff80c | 360 | parCha[2] = fgkSuThick/2; |
8230f242 | 361 | gMC->Gsvolu("UL08","BOX ",idtmed[1313-1],parCha,kNparCha); |
f7336fa3 | 362 | // Cu layer (FEE + signal lines) |
793ff80c | 363 | parCha[2] = fgkFeThick/2; |
8230f242 | 364 | gMC->Gsvolu("UL09","BOX ",idtmed[1305-1],parCha,kNparCha); |
f7336fa3 | 365 | // PE layer (cooling devices) |
793ff80c | 366 | parCha[2] = fgkCoThick/2; |
8230f242 | 367 | gMC->Gsvolu("UL10","BOX ",idtmed[1303-1],parCha,kNparCha); |
f7336fa3 | 368 | // Water layer (cooling) |
793ff80c | 369 | parCha[2] = fgkWaThick/2; |
8230f242 | 370 | gMC->Gsvolu("UL11","BOX ",idtmed[1314-1],parCha,kNparCha); |
f7336fa3 | 371 | |
372 | // Position the layers in the chambers | |
373 | xpos = 0; | |
374 | ypos = 0; | |
375 | ||
376 | // G10 layer (radiator seal) | |
793ff80c | 377 | zpos = fgkSeZpos; |
f7336fa3 | 378 | gMC->Gspos("UL01",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
379 | gMC->Gspos("UL01",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
380 | gMC->Gspos("UL01",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
381 | // CO2 layer (radiator) | |
793ff80c | 382 | zpos = fgkRaZpos; |
f7336fa3 | 383 | gMC->Gspos("UL02",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
384 | gMC->Gspos("UL02",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
385 | gMC->Gspos("UL02",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
386 | // PE layer (radiator) | |
387 | zpos = 0; | |
388 | gMC->Gspos("UL03",1,"UL02",xpos,ypos,zpos,0,"ONLY"); | |
389 | // Mylar layer (entrance window + HV cathode) | |
793ff80c | 390 | zpos = fgkMyZpos; |
f7336fa3 | 391 | gMC->Gspos("UL04",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
392 | gMC->Gspos("UL04",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
393 | gMC->Gspos("UL04",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
394 | // Xe/Isobutane layer (drift volume) | |
793ff80c | 395 | zpos = fgkDrZpos; |
f7336fa3 | 396 | gMC->Gspos("UL05",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
397 | gMC->Gspos("UL05",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
398 | gMC->Gspos("UL05",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
399 | // Xe/Isobutane layer (amplification volume) | |
793ff80c | 400 | zpos = fgkAmZpos; |
f7336fa3 | 401 | gMC->Gspos("UL06",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
402 | gMC->Gspos("UL06",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
403 | gMC->Gspos("UL06",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
404 | ||
405 | // Cu layer (pad plane) | |
793ff80c | 406 | zpos = fgkCuZpos; |
f7336fa3 | 407 | gMC->Gspos("UL07",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
408 | gMC->Gspos("UL07",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
409 | gMC->Gspos("UL07",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
410 | // G10 layer (support structure) | |
793ff80c | 411 | zpos = fgkSuZpos; |
f7336fa3 | 412 | gMC->Gspos("UL08",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
413 | gMC->Gspos("UL08",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
414 | gMC->Gspos("UL08",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
415 | // Cu layer (FEE + signal lines) | |
793ff80c | 416 | zpos = fgkFeZpos; |
f7336fa3 | 417 | gMC->Gspos("UL09",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
418 | gMC->Gspos("UL09",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
419 | gMC->Gspos("UL09",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
420 | // PE layer (cooling devices) | |
793ff80c | 421 | zpos = fgkCoZpos; |
f7336fa3 | 422 | gMC->Gspos("UL10",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
423 | gMC->Gspos("UL10",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
424 | gMC->Gspos("UL10",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
425 | // Water layer (cooling) | |
793ff80c | 426 | zpos = fgkWaZpos; |
f7336fa3 | 427 | gMC->Gspos("UL11",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
428 | gMC->Gspos("UL11",1,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
429 | gMC->Gspos("UL11",1,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
430 | ||
431 | } | |
432 | ||
433 | //_____________________________________________________________________________ | |
94de3818 | 434 | Bool_t AliTRDgeometry::Local2Global(Int_t idet, Float_t *local, Float_t *global) const |
f7336fa3 | 435 | { |
436 | // | |
437 | // Converts local pad-coordinates (row,col,time) into | |
438 | // global ALICE reference frame coordinates (x,y,z) | |
439 | // | |
440 | ||
793ff80c | 441 | Int_t icham = GetChamber(idet); // Chamber info (0-4) |
442 | Int_t isect = GetSector(idet); // Sector info (0-17) | |
443 | Int_t iplan = GetPlane(idet); // Plane info (0-5) | |
f7336fa3 | 444 | |
6f1e466d | 445 | return Local2Global(iplan,icham,isect,local,global); |
f7336fa3 | 446 | |
447 | } | |
448 | ||
449 | //_____________________________________________________________________________ | |
450 | Bool_t AliTRDgeometry::Local2Global(Int_t iplan, Int_t icham, Int_t isect | |
94de3818 | 451 | , Float_t *local, Float_t *global) const |
f7336fa3 | 452 | { |
453 | // | |
454 | // Converts local pad-coordinates (row,col,time) into | |
455 | // global ALICE reference frame coordinates (x,y,z) | |
456 | // | |
457 | ||
793ff80c | 458 | Int_t idet = GetDetector(iplan,icham,isect); // Detector number |
f7336fa3 | 459 | |
793ff80c | 460 | Float_t padRow = local[0]; // Pad Row position |
461 | Float_t padCol = local[1]; // Pad Column position | |
462 | Float_t timeSlice = local[2]; // Time "position" | |
f7336fa3 | 463 | |
793ff80c | 464 | Float_t row0 = GetRow0(iplan,icham,isect); |
465 | Float_t col0 = GetCol0(iplan); | |
466 | Float_t time0 = GetTime0(iplan); | |
f7336fa3 | 467 | |
793ff80c | 468 | Float_t rot[3]; |
f7336fa3 | 469 | |
470 | // calculate (x,y,z) position in rotated chamber | |
f7336fa3 | 471 | rot[0] = time0 + timeSlice * fTimeBinSize; |
6f1e466d | 472 | rot[1] = col0 + padCol * fColPadSize; |
f7336fa3 | 473 | rot[2] = row0 + padRow * fRowPadSize; |
474 | ||
475 | // Rotate back to original position | |
476 | return RotateBack(idet,rot,global); | |
477 | ||
478 | } | |
479 | ||
480 | //_____________________________________________________________________________ | |
793ff80c | 481 | Bool_t AliTRDgeometry::Rotate(Int_t d, Float_t *pos, Float_t *rot) const |
f7336fa3 | 482 | { |
483 | // | |
484 | // Rotates all chambers in the position of sector 0 and transforms | |
485 | // the coordinates in the ALICE restframe <pos> into the | |
486 | // corresponding local frame <rot>. | |
487 | // | |
488 | ||
793ff80c | 489 | Int_t sector = GetSector(d); |
f7336fa3 | 490 | |
793ff80c | 491 | rot[0] = pos[0] * fRotA11[sector] + pos[1] * fRotA12[sector]; |
492 | rot[1] = -pos[0] * fRotA21[sector] + pos[1] * fRotA22[sector]; | |
f7336fa3 | 493 | rot[2] = pos[2]; |
494 | ||
495 | return kTRUE; | |
496 | ||
497 | } | |
498 | ||
499 | //_____________________________________________________________________________ | |
94de3818 | 500 | Bool_t AliTRDgeometry::RotateBack(Int_t d, Float_t *rot, Float_t *pos) const |
f7336fa3 | 501 | { |
502 | // | |
503 | // Rotates a chambers from the position of sector 0 into its | |
504 | // original position and transforms the corresponding local frame | |
505 | // coordinates <rot> into the coordinates of the ALICE restframe <pos>. | |
506 | // | |
507 | ||
793ff80c | 508 | Int_t sector = GetSector(d); |
f7336fa3 | 509 | |
793ff80c | 510 | pos[0] = rot[0] * fRotB11[sector] + rot[1] * fRotB12[sector]; |
511 | pos[1] = -rot[0] * fRotB21[sector] + rot[1] * fRotB22[sector]; | |
6f1e466d | 512 | pos[2] = rot[2]; |
f7336fa3 | 513 | |
514 | return kTRUE; | |
515 | ||
516 | } | |
517 | ||
518 | //_____________________________________________________________________________ | |
94de3818 | 519 | Int_t AliTRDgeometry::GetDetector(Int_t p, Int_t c, Int_t s) const |
f7336fa3 | 520 | { |
521 | // | |
522 | // Convert plane / chamber / sector into detector number | |
523 | // | |
524 | ||
793ff80c | 525 | return (p + c * fgkNplan + s * fgkNplan * fgkNcham); |
f7336fa3 | 526 | |
527 | } | |
528 | ||
529 | //_____________________________________________________________________________ | |
94de3818 | 530 | Int_t AliTRDgeometry::GetPlane(Int_t d) const |
f7336fa3 | 531 | { |
532 | // | |
533 | // Reconstruct the plane number from the detector number | |
534 | // | |
535 | ||
793ff80c | 536 | return ((Int_t) (d % fgkNplan)); |
f7336fa3 | 537 | |
538 | } | |
539 | ||
540 | //_____________________________________________________________________________ | |
94de3818 | 541 | Int_t AliTRDgeometry::GetChamber(Int_t d) const |
f7336fa3 | 542 | { |
543 | // | |
544 | // Reconstruct the chamber number from the detector number | |
545 | // | |
546 | ||
793ff80c | 547 | return ((Int_t) (d % (fgkNplan * fgkNcham)) / fgkNplan); |
f7336fa3 | 548 | |
549 | } | |
550 | ||
551 | //_____________________________________________________________________________ | |
94de3818 | 552 | Int_t AliTRDgeometry::GetSector(Int_t d) const |
f7336fa3 | 553 | { |
554 | // | |
555 | // Reconstruct the sector number from the detector number | |
556 | // | |
557 | ||
793ff80c | 558 | return ((Int_t) (d / (fgkNplan * fgkNcham))); |
f7336fa3 | 559 | |
560 | } | |
561 | ||
562 | //_____________________________________________________________________________ | |
793ff80c | 563 | void AliTRDgeometry::GetGlobal(const AliRecPoint *p, TVector3 &pos |
564 | , TMatrix &mat) const | |
f7336fa3 | 565 | { |
566 | // | |
567 | // Returns the global coordinate and error matrix of a AliTRDrecPoint | |
568 | // | |
569 | ||
570 | GetGlobal(p,pos); | |
9d0b222b | 571 | mat.Zero(); |
f7336fa3 | 572 | |
573 | } | |
574 | ||
575 | //_____________________________________________________________________________ | |
94de3818 | 576 | void AliTRDgeometry::GetGlobal(const AliRecPoint *p, TVector3 &pos) const |
f7336fa3 | 577 | { |
578 | // | |
579 | // Returns the global coordinate and error matrix of a AliTRDrecPoint | |
580 | // | |
581 | ||
582 | Int_t detector = ((AliTRDrecPoint *) p)->GetDetector(); | |
583 | ||
584 | Float_t global[3]; | |
585 | Float_t local[3]; | |
6f1e466d | 586 | local[0] = ((AliTRDrecPoint *) p)->GetLocalRow(); |
587 | local[1] = ((AliTRDrecPoint *) p)->GetLocalCol(); | |
588 | local[2] = ((AliTRDrecPoint *) p)->GetLocalTime(); | |
f7336fa3 | 589 | |
590 | if (Local2Global(detector,local,global)) { | |
591 | pos.SetX(global[0]); | |
592 | pos.SetY(global[1]); | |
593 | pos.SetZ(global[2]); | |
594 | } | |
595 | else { | |
596 | pos.SetX(0.0); | |
597 | pos.SetY(0.0); | |
598 | pos.SetZ(0.0); | |
599 | } | |
600 | ||
601 | } |