]> git.uio.no Git - u/mrichter/AliRoot.git/blame - MUON/AliMUONTriggerCircuit.cxx
Coding conventions fixed.
[u/mrichter/AliRoot.git] / MUON / AliMUONTriggerCircuit.cxx
CommitLineData
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
49ClassImp(AliMUONTriggerCircuit)
50/// \endcond
51
52//----------------------------------------------------------------------
7103ac2d 53AliMUONTriggerCircuit::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//----------------------------------------------------------------------
86AliMUONTriggerCircuit::~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//----------------------------------------------------------------------
98AliMUONTriggerCircuit::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//----------------------------------------------------------------------
115AliMUONTriggerCircuit& 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 137void 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 265void 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//----------------------------------------------------------------------
292void 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 346void 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 385void 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//----------------------------------------------------------------------
405Float_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 411Float_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 417Float_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 424Int_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//----------------------------------------------------------------------
455Float_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}