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8ff54bb6 | 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 | /* $Id$ */ | |
17 | ||
3d1463c8 | 18 | //----------------------------------------------------------------------------- |
8ff54bb6 | 19 | /// \class AliMUONTriggerCircuit |
20 | /// Contains as data members the Y positions of the X declusturized strips and | |
21 | /// the X positions of the (doubled or not) Y strips. | |
22 | /// This is used to associate the global positions to the fired strips of the | |
23 | /// local trigger output (see AliMUONTrackReconstructor::MakeTriggerTrack) | |
78649106 | 24 | /// |
25 | /// \author Philippe Crochet (LPCCFd) | |
3d1463c8 | 26 | //----------------------------------------------------------------------------- |
8ff54bb6 | 27 | |
28 | #include "AliMUONTriggerCircuit.h" | |
afeb2b33 | 29 | #include "AliMUONConstants.h" |
8ff54bb6 | 30 | |
31 | #include "AliMpTriggerSegmentation.h" | |
32 | #include "AliMpTrigger.h" | |
33 | #include "AliMpSlat.h" | |
34 | #include "AliMpPCB.h" | |
35 | #include "AliMpSegmentation.h" | |
36 | #include "AliMpVSegmentation.h" | |
866c3232 | 37 | #include "AliMpCathodType.h" |
7103ac2d | 38 | #include "AliMpDDLStore.h" |
39 | #include "AliMpLocalBoard.h" | |
40 | #include "AliMpConstants.h" | |
8ff54bb6 | 41 | |
42 | #include "AliRun.h" | |
43 | #include "AliLog.h" | |
44 | ||
45 | #include <TMath.h> | |
9de45220 | 46 | #include <Riostream.h> |
8ff54bb6 | 47 | |
48 | /// \cond CLASSIMP | |
49 | ClassImp(AliMUONTriggerCircuit) | |
50 | /// \endcond | |
51 | ||
52 | //---------------------------------------------------------------------- | |
7103ac2d | 53 | AliMUONTriggerCircuit::AliMUONTriggerCircuit(const AliMUONGeometryTransformer* transformer) |
54 | : TObject(), | |
55 | fTransformer(transformer), | |
56 | fCurrentSeg(0x0), | |
57 | fCurrentDetElem(0x0), | |
58 | fCurrentLocalBoard(0x0) | |
8ff54bb6 | 59 | { |
60 | /// Constructor | |
61 | ||
7103ac2d | 62 | for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) { |
63 | fXpos11[i].Set(16); | |
64 | fYpos11[i].Set(31); | |
65 | fYpos21[i].Set(63); | |
66 | } | |
67 | ||
68 | for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) { // board begins at 1 | |
69 | ||
70 | AliMpLocalBoard* localBoard = AliMpDDLStore::Instance()->GetLocalBoard(i); | |
71 | ||
72 | if (!localBoard) | |
73 | { | |
74 | AliError(Form("Did not get localboard %d",i)); | |
75 | continue; | |
76 | } | |
77 | ||
78 | LoadXPos(localBoard); | |
79 | LoadYPos(localBoard); | |
80 | ||
81 | } | |
82 | ||
8ff54bb6 | 83 | } |
84 | ||
85 | //---------------------------------------------------------------------- | |
86 | AliMUONTriggerCircuit::~AliMUONTriggerCircuit() | |
87 | { | |
88 | /// Destructor | |
7103ac2d | 89 | for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) { |
90 | fXpos11[i].Reset(); | |
91 | fYpos11[i].Reset(); | |
92 | fYpos21[i].Reset(); | |
93 | } | |
94 | ||
8ff54bb6 | 95 | } |
96 | ||
97 | //---------------------------------------------------------------------- | |
98 | AliMUONTriggerCircuit::AliMUONTriggerCircuit(const AliMUONTriggerCircuit& circuit) | |
7103ac2d | 99 | : TObject(circuit), |
100 | fTransformer(circuit.fTransformer), // do not copy, just pointed to | |
101 | fCurrentSeg(circuit.fCurrentSeg), | |
102 | fCurrentDetElem(circuit.fCurrentDetElem), | |
103 | fCurrentLocalBoard(circuit.fCurrentLocalBoard) | |
8ff54bb6 | 104 | { |
105 | /// Copy constructor | |
106 | ||
7103ac2d | 107 | for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) { |
108 | fXpos11[i] = circuit.fXpos11[i]; | |
109 | fYpos11[i] = circuit.fYpos11[i]; | |
110 | fYpos21[i] = circuit.fYpos21[i]; | |
111 | } | |
8ff54bb6 | 112 | |
113 | } | |
114 | //---------------------------------------------------------------------- | |
115 | AliMUONTriggerCircuit& AliMUONTriggerCircuit::operator=(const AliMUONTriggerCircuit& circuit) | |
116 | { | |
117 | /// Assignment operator | |
118 | ||
119 | if (this == &circuit) return *this; | |
120 | ||
7103ac2d | 121 | fTransformer = circuit.fTransformer; |
122 | fCurrentSeg = circuit.fCurrentSeg; | |
123 | fCurrentDetElem = circuit.fCurrentDetElem; | |
124 | fCurrentLocalBoard = circuit.fCurrentLocalBoard; | |
8ff54bb6 | 125 | |
7103ac2d | 126 | for (Int_t i = 1; i < AliMpConstants::NofLocalBoards()+1; ++i) { |
8ff54bb6 | 127 | fXpos11[i] = circuit.fXpos11[i]; |
8ff54bb6 | 128 | fYpos11[i] = circuit.fYpos11[i]; |
8ff54bb6 | 129 | fYpos21[i] = circuit.fYpos21[i]; |
7103ac2d | 130 | } |
8ff54bb6 | 131 | |
132 | return *this; | |
133 | ||
8ff54bb6 | 134 | } |
135 | ||
136 | //--------------------------------------------------------------------- | |
7103ac2d | 137 | void AliMUONTriggerCircuit::LoadYPos(AliMpLocalBoard* localBoard) |
8ff54bb6 | 138 | { |
139 | /// fill fYpos11 and fYpos21 -> y position of X declusterized strips | |
140 | ||
7103ac2d | 141 | fCurrentLocalBoard = localBoard->GetId(); |
8ff54bb6 | 142 | Int_t ichamber = 0; |
143 | Int_t icathode = 0; | |
7103ac2d | 144 | |
145 | Int_t zeroDown = localBoard->GetSwitch(AliMpLocalBoard::kZeroDown); | |
146 | Int_t zeroUp = localBoard->GetSwitch(AliMpLocalBoard::kZeroUp); | |
147 | ||
148 | Int_t iline = localBoard->GetPosition().GetFirst(); | |
149 | Int_t icol = localBoard->GetPosition().GetSecond(); | |
150 | if ( iline == 5 ) --icol; | |
151 | ||
8ff54bb6 | 152 | //--- first plane |
153 | ichamber = 10; | |
7103ac2d | 154 | fCurrentDetElem = AliMpDDLStore::Instance()->GetDEfromLocalBoard(fCurrentLocalBoard, ichamber); |
8ff54bb6 | 155 | |
7103ac2d | 156 | fCurrentSeg = AliMpSegmentation::Instance() |
157 | ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode)); | |
158 | ||
159 | Int_t iFirstStrip = FirstStrip(localBoard); | |
160 | Int_t iLastStrip = iFirstStrip + 16; | |
8ff54bb6 | 161 | Int_t iStripCircuit = 0; |
7103ac2d | 162 | |
163 | FillXstrips(icol, iFirstStrip, iLastStrip, | |
164 | iStripCircuit, fYpos11[fCurrentLocalBoard]); | |
8ff54bb6 | 165 | |
166 | //--- second plane | |
167 | ichamber = 12; | |
7103ac2d | 168 | fCurrentDetElem = AliMpDDLStore::Instance()->GetDEfromLocalBoard(fCurrentLocalBoard, ichamber); |
169 | ||
170 | fCurrentSeg = AliMpSegmentation::Instance() | |
171 | ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode)); | |
8ff54bb6 | 172 | |
173 | // second plane middle part | |
7103ac2d | 174 | Int_t iFirstStripMiddle = FirstStrip(localBoard); |
175 | Int_t iLastStripMiddle = iFirstStrip + 16; | |
176 | iStripCircuit = 8; | |
177 | ||
178 | FillXstrips(icol, iFirstStripMiddle, iLastStripMiddle, | |
179 | iStripCircuit, fYpos21[fCurrentLocalBoard]); | |
8ff54bb6 | 180 | |
181 | // second plane upper part | |
182 | if (zeroUp == 0) { // something up | |
183 | Int_t iFirstStripUp; | |
184 | Int_t iLastStripUp; | |
7103ac2d | 185 | Int_t icolUp = icol; |
186 | ||
8ff54bb6 | 187 | // check if we need to move to another detElemId |
7103ac2d | 188 | AliMpPad pad = fCurrentSeg->PadByIndices(AliMpIntPair(icol-1,iLastStripMiddle+1),kFALSE); |
189 | ||
8ff54bb6 | 190 | if (pad.IsValid()) { // upper strips within same detElemId |
191 | iFirstStripUp = iLastStripMiddle; | |
7103ac2d | 192 | iLastStripUp = iFirstStripUp + 8; |
193 | ||
8ff54bb6 | 194 | } else { // upper strips in another detElemId |
7103ac2d | 195 | fCurrentDetElem = AliMpDDLStore::Instance()-> |
196 | GetNextDEfromLocalBoard(fCurrentLocalBoard, ichamber); | |
197 | ||
198 | fCurrentSeg = AliMpSegmentation::Instance() | |
199 | ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode)); | |
8ff54bb6 | 200 | |
201 | iFirstStripUp = 0; | |
7103ac2d | 202 | iLastStripUp = iFirstStripUp + 8; |
8ff54bb6 | 203 | if (iline == 4) icolUp = icol - 1; // special case |
204 | if (iline == 5) icolUp = icol + 1; // special case | |
205 | } | |
206 | ||
7103ac2d | 207 | iStripCircuit = 24; |
208 | FillXstrips(icolUp, iFirstStripUp, iLastStripUp, | |
209 | iStripCircuit, fYpos21[fCurrentLocalBoard]); | |
8ff54bb6 | 210 | |
211 | // fill strip between middle and upper part | |
7103ac2d | 212 | fYpos21[fCurrentLocalBoard][47] = (fYpos21[fCurrentLocalBoard][46] + |
213 | fYpos21[fCurrentLocalBoard][48])/2.; | |
8ff54bb6 | 214 | } // end of something up |
215 | ||
216 | // restore current detElemId & segmentation | |
7103ac2d | 217 | fCurrentDetElem = AliMpDDLStore::Instance()->GetDEfromLocalBoard(fCurrentLocalBoard, ichamber); |
218 | fCurrentSeg = AliMpSegmentation::Instance() | |
219 | ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode)); | |
8ff54bb6 | 220 | |
221 | // second plane lower part | |
222 | if (zeroDown == 0) { // something down | |
223 | Int_t iFirstStripDo; | |
224 | Int_t iLastStripDo; | |
7103ac2d | 225 | Int_t icolDo = icol; |
8ff54bb6 | 226 | |
227 | // check if we need to move to another detElemId | |
7103ac2d | 228 | AliMpPad pad = fCurrentSeg->PadByIndices(AliMpIntPair(icol-1,iFirstStripMiddle-1),kFALSE); |
8ff54bb6 | 229 | if (pad.IsValid()) { // lower strips within same detElemId |
230 | iFirstStripDo = iFirstStripMiddle - 8; | |
7103ac2d | 231 | iLastStripDo = iFirstStripDo + 8; |
232 | ||
8ff54bb6 | 233 | } else { // lower strips in another detElemId |
7103ac2d | 234 | fCurrentDetElem = AliMpDDLStore::Instance() |
235 | ->GetPreviousDEfromLocalBoard(fCurrentLocalBoard, ichamber); | |
236 | ||
237 | fCurrentSeg = AliMpSegmentation::Instance() | |
238 | ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode)); | |
8ff54bb6 | 239 | |
240 | // get iFirstStrip in this module | |
7103ac2d | 241 | const AliMpTriggerSegmentation* trig = (AliMpTriggerSegmentation*)(fCurrentSeg); |
8ff54bb6 | 242 | const AliMpTrigger* t = trig->Slat(); |
243 | const AliMpSlat* slat = t->GetLayer(0); | |
7103ac2d | 244 | |
8ff54bb6 | 245 | if (iline == 5) icolDo = icol + 1; // special case |
7103ac2d | 246 | if (iline == 6) icolDo = icol - 1; // special case |
247 | ||
8ff54bb6 | 248 | const AliMpPCB* pcb = slat->GetPCB(icolDo-1); |
249 | iFirstStripDo = (pcb->Iymax() + 1) - 8; | |
250 | iLastStripDo = iFirstStripDo + 8; | |
251 | } | |
252 | ||
7103ac2d | 253 | iStripCircuit = 0; |
254 | FillXstrips(icolDo, iFirstStripDo, iLastStripDo, | |
255 | iStripCircuit, fYpos21[fCurrentLocalBoard]); | |
8ff54bb6 | 256 | |
257 | // fill strip between middle and upper part | |
7103ac2d | 258 | fYpos21[fCurrentLocalBoard][15] = (fYpos21[fCurrentLocalBoard][14] + |
259 | fYpos21[fCurrentLocalBoard][16])/2.; | |
8ff54bb6 | 260 | } // end of something down |
261 | ||
262 | } | |
263 | ||
264 | //---------------------------------------------------------------------- | |
7103ac2d | 265 | void AliMUONTriggerCircuit::FillXstrips(const Int_t icol, |
266 | const Int_t iFirstStrip, const Int_t iLastStrip, | |
267 | Int_t liStripCircuit, TArrayF& ypos) | |
268 | { | |
269 | /// fill | |
270 | Double_t xyGlobal[2] = {0.}; | |
271 | for (Int_t istrip = iFirstStrip; istrip < iLastStrip; ++istrip) { | |
272 | ||
273 | AliMpPad pad = fCurrentSeg->PadByIndices(AliMpIntPair(icol-1,istrip),kTRUE); | |
274 | if ( !pad.IsValid() ) { | |
275 | StdoutToAliError(cout << "Pad not found in seg " << endl; | |
276 | fCurrentSeg->Print(); | |
277 | cout << " ix,iy=" << icol-1 << "," << istrip << endl; | |
278 | ); | |
279 | } | |
280 | Float_t yDim = pad.Dimensions().Y(); // half size! | |
281 | ||
282 | XYGlobal(pad,xyGlobal); | |
283 | ||
284 | ypos[2*liStripCircuit] = xyGlobal[1]; | |
285 | if (istrip != (iLastStrip - 1)) ypos[2*liStripCircuit+1] = xyGlobal[1] + yDim; | |
286 | liStripCircuit++; | |
287 | } | |
288 | } | |
289 | ||
290 | ||
291 | //---------------------------------------------------------------------- | |
292 | void AliMUONTriggerCircuit::LoadXPos(AliMpLocalBoard* localBoard) | |
8ff54bb6 | 293 | { |
294 | /// fill fXpos11 -> x position of Y strips for the first plane only | |
295 | /// fXpos11 contains the x position of Y strip for the current circuit | |
296 | /// taking into account whether or nor not part(s) of the circuit | |
297 | /// (middle, up or down) has(have) 16 strips (handdled by means of switchs) | |
7103ac2d | 298 | |
299 | fCurrentLocalBoard = localBoard->GetId(); | |
300 | ||
8ff54bb6 | 301 | Int_t ichamber = 10; |
302 | Int_t icathode = 1; | |
303 | ||
7103ac2d | 304 | Int_t x2u = localBoard->GetSwitch(AliMpLocalBoard::kX2u); |
305 | Int_t x2m = localBoard->GetSwitch(AliMpLocalBoard::kX2m); | |
306 | Int_t x2d = localBoard->GetSwitch(AliMpLocalBoard::kX2d); | |
307 | Int_t zeroAllYLSB = localBoard->GetSwitch(AliMpLocalBoard::kZeroAllYLSB); | |
308 | ||
309 | Int_t iStripCircuit = 0; | |
310 | Int_t iFirstStrip = 0; | |
311 | Int_t iLastStrip = 0; | |
312 | Bool_t doubling = kFALSE; | |
8ff54bb6 | 313 | |
7103ac2d | 314 | Int_t iline = localBoard->GetPosition().GetFirst(); |
315 | Int_t icol = localBoard->GetPosition().GetSecond(); | |
316 | if ( iline == 5 ) --icol; | |
8ff54bb6 | 317 | |
7103ac2d | 318 | fCurrentDetElem = AliMpDDLStore::Instance()->GetDEfromLocalBoard(fCurrentLocalBoard, ichamber); |
319 | ||
320 | fCurrentSeg = AliMpSegmentation::Instance() | |
321 | ->GetMpSegmentation(fCurrentDetElem, AliMp::GetCathodType(icathode)); | |
8ff54bb6 | 322 | |
323 | // check if one needs a strip doubling or not | |
7103ac2d | 324 | if ( (x2u || x2m || x2d ) && x2m ) doubling = kTRUE; |
325 | ||
0d528e1f | 326 | |
8ff54bb6 | 327 | // check if one starts at strip = 0 or 8 (boards 26-29 and 143-146) |
7103ac2d | 328 | if (zeroAllYLSB) iStripCircuit = 8; |
8ff54bb6 | 329 | |
330 | // get iFirstStrip in this module | |
7103ac2d | 331 | const AliMpTriggerSegmentation* trig = (AliMpTriggerSegmentation*)(fCurrentSeg); |
8ff54bb6 | 332 | const AliMpTrigger* t = trig->Slat(); |
333 | const AliMpSlat* slat = t->GetLayer(0); | |
334 | ||
335 | const AliMpPCB* pcb = slat->GetPCB(icol-1); | |
336 | iFirstStrip = pcb->Ixmin(); | |
337 | ||
7103ac2d | 338 | |
0d528e1f | 339 | if (doubling || zeroAllYLSB == 1) iLastStrip = iFirstStrip + 8; |
8ff54bb6 | 340 | else iLastStrip = iFirstStrip + 16; |
341 | ||
7103ac2d | 342 | FillYstrips(iFirstStrip, iLastStrip, iStripCircuit, doubling); |
8ff54bb6 | 343 | } |
344 | ||
345 | //---------------------------------------------------------------------- | |
7103ac2d | 346 | void AliMUONTriggerCircuit::FillYstrips(const Int_t iFirstStrip, const Int_t iLastStrip, |
347 | Int_t liStripCircuit, | |
348 | const Bool_t doubling) | |
8ff54bb6 | 349 | { |
350 | /// fill | |
7103ac2d | 351 | Double_t xyGlobal[2] = {0.}; |
352 | ||
353 | for (Int_t istrip = iFirstStrip; istrip < iLastStrip; ++istrip) { | |
0d528e1f | 354 | |
7103ac2d | 355 | AliMpPad pad = fCurrentSeg->PadByIndices(AliMpIntPair(istrip,0),kTRUE); |
0d528e1f | 356 | |
8ff54bb6 | 357 | if ( !pad.IsValid() ) |
358 | { | |
359 | StdoutToAliError(cout << "Pad not found in seg " << endl; | |
7103ac2d | 360 | fCurrentSeg->Print(); |
8ff54bb6 | 361 | cout << " ix,iy=" << istrip << "," << 0 << endl; |
362 | ); | |
363 | } | |
7103ac2d | 364 | Float_t xDim = pad.Dimensions().X(); // half size! |
8ff54bb6 | 365 | |
7103ac2d | 366 | XYGlobal(pad,xyGlobal); |
8ff54bb6 | 367 | |
7103ac2d | 368 | if (!doubling) { |
369 | fXpos11[fCurrentLocalBoard].AddAt(xyGlobal[0], liStripCircuit); | |
370 | } else if (doubling) { | |
371 | ||
372 | fXpos11[fCurrentLocalBoard].AddAt(TMath::Sign(1.,xyGlobal[0]) * | |
373 | (TMath::Abs(xyGlobal[0]) - xDim/2.), 2*liStripCircuit); | |
374 | ||
375 | fXpos11[fCurrentLocalBoard].AddAt(TMath::Sign(1.,xyGlobal[0]) * | |
376 | (TMath::Abs(fXpos11[fCurrentLocalBoard][2*liStripCircuit]) + xDim), | |
377 | 2*liStripCircuit + 1); | |
378 | } | |
379 | ||
8ff54bb6 | 380 | liStripCircuit++; |
381 | } | |
382 | } | |
383 | ||
384 | //---------------------------------------------------------------------- | |
7103ac2d | 385 | void AliMUONTriggerCircuit::XYGlobal(const AliMpPad& pad, |
386 | Double_t* xyGlobal) | |
8ff54bb6 | 387 | { |
7103ac2d | 388 | /// returns pad x & y positions and x & y pad dimensions in global coordinates |
389 | /// note: no need for transformation for pad dimensions | |
8ff54bb6 | 390 | |
7103ac2d | 391 | // get the pad position and dimensions |
392 | Double_t xl1 = pad.Position().X(); | |
393 | Double_t yl1 = pad.Position().Y(); | |
394 | Double_t zg1 = 0; | |
395 | ||
396 | // positions from local to global | |
397 | fTransformer->Local2Global(fCurrentDetElem, xl1, yl1, 0, | |
398 | xyGlobal[0], xyGlobal[1], zg1); | |
8ff54bb6 | 399 | } |
7103ac2d | 400 | |
8ff54bb6 | 401 | |
402 | //---------------------------------------------------------------------- | |
7103ac2d | 403 | //--- methods which return member data related info |
404 | //---------------------------------------------------------------------- | |
405 | Float_t AliMUONTriggerCircuit::GetY11Pos(Int_t localBoardId, Int_t istrip) const | |
8ff54bb6 | 406 | { |
7103ac2d | 407 | /// returns Y position of X strip istrip in MC11 |
408 | return fYpos11[localBoardId][istrip]; | |
8ff54bb6 | 409 | } |
8ff54bb6 | 410 | //---------------------------------------------------------------------- |
7103ac2d | 411 | Float_t AliMUONTriggerCircuit::GetY21Pos(Int_t localBoardId, Int_t istrip) const |
8ff54bb6 | 412 | { |
7103ac2d | 413 | /// returns Y position of X strip istrip in MC21 |
414 | return fYpos21[localBoardId][istrip]; | |
8ff54bb6 | 415 | } |
8ff54bb6 | 416 | //---------------------------------------------------------------------- |
7103ac2d | 417 | Float_t AliMUONTriggerCircuit::GetX11Pos(Int_t localBoardId, Int_t istrip) const |
8ff54bb6 | 418 | { |
7103ac2d | 419 | /// returns X position of Y strip istrip in MC11 |
420 | return fXpos11[localBoardId][istrip]; | |
8ff54bb6 | 421 | } |
422 | ||
423 | //---------------------------------------------------------------------- | |
7103ac2d | 424 | Int_t AliMUONTriggerCircuit::FirstStrip(AliMpLocalBoard* localBoard) |
8ff54bb6 | 425 | { |
426 | /// returns the first strip from mapping for board boardName | |
427 | /// take care of special case for boards RC1L6B12 & LC1L6B12 | |
428 | Int_t iFirstStrip = -1; | |
7103ac2d | 429 | Int_t boardNumber = atoi(localBoard->GetName()+6); |
430 | ||
431 | Int_t iline = localBoard->GetPosition().GetFirst(); | |
432 | Int_t icol = localBoard->GetPosition().GetSecond(); | |
433 | if ( iline == 5 ) --icol; | |
434 | ||
8ff54bb6 | 435 | switch (boardNumber) |
436 | { | |
437 | case 12: | |
438 | iFirstStrip = 0; | |
439 | break; | |
440 | case 34: | |
441 | iFirstStrip = 16; | |
442 | break; | |
443 | case 56: | |
444 | iFirstStrip = 32; | |
445 | break; | |
446 | case 78: | |
447 | iFirstStrip = 48; | |
448 | break; | |
449 | } | |
7103ac2d | 450 | if (icol == 1 && iline == 6) iFirstStrip += 16; // special case |
8ff54bb6 | 451 | return iFirstStrip; |
452 | } | |
453 | ||
afeb2b33 | 454 | //---------------------------------------------------------------------- |
455 | Float_t AliMUONTriggerCircuit::PtCal(Int_t localBoardId, Int_t istripX, Int_t idev, Int_t istripY) const{ | |
456 | /// returns calculated pt for circuit/istripX/idev/istripY according | |
457 | /// to the formula of the TRD. Note : idev (input) is in [0+30] | |
458 | ||
459 | // Int_t jdev = idev - 15; // jdev in [-15+15] | |
460 | Int_t istripX2=istripX+idev+1; // find istripX2 using istripX and idev | |
461 | ||
462 | Float_t yPosX1=fYpos11[localBoardId][istripX]; | |
463 | Float_t yPosX2=fYpos21[localBoardId][istripX2]; | |
464 | Float_t xPosY1=fXpos11[localBoardId][istripY]; | |
465 | ||
466 | // Z distance between IP and center of dipole | |
467 | Float_t zf= TMath::Abs(0.5 *(AliMUONConstants::CoilZ() + AliMUONConstants::YokeZ())); | |
468 | Float_t z1=AliMUONConstants::DefaultChamberZ(10); | |
469 | Float_t z2=AliMUONConstants::DefaultChamberZ(12); | |
470 | Float_t thetaDev=(1./zf)*(yPosX1*z2-yPosX2*z1)/(z2-z1); | |
471 | Float_t xf=xPosY1*zf/z1; | |
472 | Float_t yf=yPosX2-((yPosX2-yPosX1)*(z2-zf))/(z2-z1); | |
473 | return (3.*0.3/TMath::Abs(thetaDev)) * TMath::Sqrt(xf*xf+yf*yf)/zf; | |
474 | } |