1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
20 #include "AliMUONTriggerCircuit.h"
23 #include "AliMUONTriggerConstants.h"
24 #include "AliSegmentation.h"
25 #include "AliMUONChamber.h"
26 #include "AliMUONConstants.h"
29 ClassImp(AliMUONTriggerCircuit)
31 //----------------------------------------------------------------------
32 AliMUONTriggerCircuit::AliMUONTriggerCircuit()
40 fOrMud[0]=fOrMud[1]=0;
43 for (Int_t j=0; j<32; j++) {
48 for (i=0; i<16; i++) { fXpos11[i]=0.; }
49 for (i=0; i<31; i++) { fYpos11[i]=0.; }
50 for (i=0; i<63; i++) { fYpos21[i]=0.; }
53 //----------------------------------------------------------------------
54 AliMUONTriggerCircuit::AliMUONTriggerCircuit(const AliMUONTriggerCircuit& theMUONTriggerCircuit)
55 : TObject(theMUONTriggerCircuit)
57 // Protected copy constructor
59 AliFatal("Not implemented.");
62 //----------------------------------------------------------------------
63 AliMUONTriggerCircuit &
64 AliMUONTriggerCircuit::operator=(const AliMUONTriggerCircuit& rhs)
66 // Protected assignement operator
68 if (this == &rhs) return *this;
70 AliFatal("Not implemented.");
75 //----------------------------------------------------------------------
76 void AliMUONTriggerCircuit::Init(Int_t iCircuit) {
77 // initialize circuit characteristics
78 fIdCircuit=AliMUONTriggerConstants::CircuitId(iCircuit);
86 //----------------------------------------------------------------------
87 Int_t AliMUONTriggerCircuit::CircuitNumber(Int_t idCircuit) const {
88 // returns circuit number iCircuit (0-234) corresponding to circuit idCircuit
90 for (Int_t i=0; i<234; i++) {
91 if (AliMUONTriggerConstants::CircuitId(i)==idCircuit) {
98 //----------------------------------------------------------------------
99 Int_t AliMUONTriggerCircuit::ModuleNumber(Int_t idModule) const {
100 // returns module number imod (from 0 to 63) corresponding to module idmodule
101 Int_t absidModule=TMath::Abs(idModule);
103 for (Int_t i=0; i<63; i++) {
104 if (AliMUONTriggerConstants::ModuleId(i)==absidModule) {
112 //----------------------------------------------------------------------
113 Int_t AliMUONTriggerCircuit::Module(Int_t idCircuit) const {
114 // returns ModuleId where Circuit idCircuit is sitting
115 return Int_t(idCircuit/10);
117 //----------------------------------------------------------------------
118 Int_t AliMUONTriggerCircuit::Position(Int_t idCircuit) const {
119 // returns position of idCircuit in correcponding Module
120 return TMath::Abs(idCircuit)-TMath::Abs(Module(idCircuit))*10;
123 //----------------------------------------------------------------------
124 void AliMUONTriggerCircuit::LoadX2() {
125 // initialize fX2m, fX2ud and fOrMud
127 Int_t idModule=Module(fIdCircuit); // corresponding module Id.
128 // and its number of X strips
129 Int_t nStrX=AliMUONTriggerConstants::NstripX(ModuleNumber(idModule));
130 // and its number of Y strips
131 Int_t nStrY=AliMUONTriggerConstants::NstripY(ModuleNumber(idModule));
132 Int_t iPosCircuit=Position(fIdCircuit); // position of circuit in module
134 // first step : look at lower part
135 if (iPosCircuit==1) { // need to scan lower module
136 if(idModule<91&&TMath::Abs(idModule)!=41&&idModule>-91) {
138 Int_t idModuleD=(TMath::Abs(idModule)+10)*(TMath::Abs(idModule)/idModule);
139 Int_t nStrD=AliMUONTriggerConstants::NstripY(ModuleNumber(idModuleD));
142 &&TMath::Abs(idModule)!=42&&TMath::Abs(idModule)!=52) {
143 if (nStrY==8) fX2m=1;
144 if (nStrD==8) fX2ud=1;
148 } else { // lower strips within same module
152 // second step : look at upper part
153 if ((iPosCircuit==1&&nStrX==16)||(iPosCircuit==2&&nStrX==32)||
154 (iPosCircuit==3&&nStrX==48)||(iPosCircuit==4&&nStrX==64)) {
155 if ((idModule>17||idModule<-17)&&TMath::Abs(idModule)!=61) {
157 Int_t idModuleU=(TMath::Abs(idModule)-10)*(TMath::Abs(idModule)/idModule);
158 Int_t nStrU=AliMUONTriggerConstants::NstripY(ModuleNumber(idModuleU));
161 &&TMath::Abs(idModule)!=62&&TMath::Abs(idModule)!=52) {
162 if (nStrY==8) fX2m=1;
163 if (nStrU==8) fX2ud=1;
167 } else { // upper strips within same module
172 //----------------------------------------------------------------------
173 void AliMUONTriggerCircuit::LoadXCode(){
174 // assign a Id. number to each X strip of current circuit
175 // Id.=(corresponding module Id.)*100+(Id. strip of module)
177 // first part : fill XMC11 XMC12 and strips 8 to 24 (middle) XMC21 XMC22
178 Int_t iStripCircMT1=0, iStripCircMT2=8;
179 Int_t idModule=Module(fIdCircuit); // corresponding module Id.
180 // and its number of strips
181 Int_t nStrX=AliMUONTriggerConstants::NstripX(ModuleNumber(idModule));
182 Int_t iPosCircuit=Position(fIdCircuit); // position of circuit in module
183 Int_t sign=TMath::Abs(idModule)/idModule; // left or right
186 for (istrip=(iPosCircuit-1)*16;
187 istrip<(iPosCircuit-1)*16+16; istrip++) {
189 fXcode[0][iStripCircMT1]=sign*(TMath::Abs(idModule)*100+istrip);
190 fXcode[1][iStripCircMT1]=sign*(TMath::Abs(idModule)*100+istrip);
191 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
192 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
198 // XMC21 XMC22 strips 0 to 7 and 24 to 31
199 Int_t idModuleD, idModuleU;
202 idModule=Module(fIdCircuit); // corresponding module Id.
203 // number of X strips
204 nStrX=AliMUONTriggerConstants::NstripX(ModuleNumber(idModule));
205 sign=TMath::Abs(idModule)/idModule;
207 // fill lower part (0 to 7)
208 if (iPosCircuit==1) { // need to scan lower module
209 if(idModule<91&&TMath::Abs(idModule)!=41&&idModule>-91) { // non-existing
210 idModuleD=sign*(TMath::Abs(idModule)+10); // lower module Id
211 // and its number of strips
212 nStrD=AliMUONTriggerConstants::NstripX(ModuleNumber(idModuleD));
215 for (istrip=nStrD-8; istrip<nStrD; istrip++) {
216 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModuleD)*100+istrip);
217 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModuleD)*100+istrip);
222 } else { // lower strips within same module
225 for (istrip=(iPosCircuit-1)*16-8;
226 istrip<(iPosCircuit-1)*16; istrip++) {
227 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
228 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
233 // fill upper part (24 to 31)
234 if ((iPosCircuit==1&&nStrX==16)||(iPosCircuit==2&&nStrX==32)||
235 (iPosCircuit==3&&nStrX==48)||(iPosCircuit==4&&nStrX==64)) {
236 if ((idModule>17||idModule<-17)&&TMath::Abs(idModule)!=61) {
237 idModuleU=sign*(TMath::Abs(idModule)-10); // upper module Id
238 // and its number of strips
239 nStrU=AliMUONTriggerConstants::NstripX(ModuleNumber(idModuleU));
242 for (istrip=0; istrip<8; istrip++) {
243 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModuleU)*100+istrip);
244 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModuleU)*100+istrip);
249 } else if ((iPosCircuit==1&&nStrX>16)||(iPosCircuit==2&&nStrX>32)||
250 (iPosCircuit==3&&nStrX>48)) { // upper strips within same mod.
253 for (istrip=(iPosCircuit-1)*16+16;
254 istrip<(iPosCircuit-1)*16+24; istrip++) {
255 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
256 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
262 //----------------------------------------------------------------------
263 void AliMUONTriggerCircuit::LoadYCode(){
264 // assign a Id. number to each Y strip of current circuit
265 // Id.=(corresponding module Id.)*100+(Id. strip of module)
266 // note : for Y plane fill only "central part" of circuit
267 // (upper and lower parts are filled in PreHandlingY of AliMUONTriggerDecision)
269 Int_t idModule=Module(fIdCircuit); // corresponding module Id.
270 // and its number of Y strips
271 Int_t nStrY=AliMUONTriggerConstants::NstripY(ModuleNumber(idModule));
272 Int_t sign=TMath::Abs(idModule)/idModule; // left or right
274 for (Int_t istrip=0; istrip<nStrY; istrip++) {
275 fYcode[0][istrip]=sign*(TMath::Abs(idModule)*100+istrip);
276 fYcode[1][istrip]=sign*(TMath::Abs(idModule)*100+istrip);
277 fYcode[2][istrip]=sign*(TMath::Abs(idModule)*100+istrip);
278 fYcode[3][istrip]=sign*(TMath::Abs(idModule)*100+istrip);
282 //----------------------------------------------------------------------
283 void AliMUONTriggerCircuit::LoadYPos(){
284 // fill fYpos11 and fYpos21 -> y position of X declusterized strips
286 Int_t chamber, cathode;
287 Int_t code, idModule, idStrip, idSector;
288 Float_t x, y, z, width;
291 AliMUON *pMUON = (AliMUON*)gAlice->GetModule("MUON");
292 AliMUONChamber* iChamber;
293 AliSegmentation* segmentation;
298 iChamber = &(pMUON->Chamber(chamber-1));
299 segmentation=iChamber->SegmentationModel(cathode);
301 for (istrip=0; istrip<16; istrip++) {
302 code=fXcode[0][istrip]; // decode current strip
303 idModule=Int_t(code/100); // corresponding module Id.
304 idStrip=TMath::Abs(code-idModule*100); // corresp. strip number in module
305 idSector=segmentation->Sector(idModule,idStrip); // corresponding sector
306 width=segmentation->Dpy(idSector); // corresponding strip width
307 segmentation->GetPadC(idModule,idStrip,x,y,z); // get strip real position
310 if (istrip!=15) fYpos11[2*istrip+1]=y+width/2.;
316 iChamber = &(pMUON->Chamber(chamber-1));
317 segmentation=iChamber->SegmentationModel(cathode);
319 for (istrip=0; istrip<32; istrip++) {
320 code=fXcode[2][istrip]; // decode current strip
321 idModule=Int_t(code/100); // corresponding module Id.
322 idStrip=TMath::Abs(code-idModule*100); // corresp. strip number in module
323 idSector=segmentation->Sector(idModule,idStrip); // corresponding sector
324 width=segmentation->Dpy(idSector); // corresponding strip width
325 segmentation->GetPadC(idModule,idStrip,x,y,z); // get strip real position
327 // using idModule!=0 prevents to fill garbage in case of circuits
328 // in the first and last rows
331 if (istrip!=31) fYpos21[2*istrip+1]=y+width/2.;
336 //----------------------------------------------------------------------
337 void AliMUONTriggerCircuit::LoadXPos(){
338 // fill fXpos11 -> x position of Y strips for the first plane only
339 // fXpos11 contains the x position of Y strip for the current circuit
340 // taking into account whether or nor not part(s) of the circuit
341 // (middle, up or down) has(have) 16 strips
348 AliMUON *pMUON = (AliMUON*)gAlice->GetModule("MUON");
349 AliMUONChamber* iChamber;
350 AliSegmentation* segmentation;
351 iChamber = &(pMUON->Chamber(chamber-1));
352 segmentation=iChamber->SegmentationModel(cathode);
354 Int_t idModule=Module(fIdCircuit); // corresponding module Id.
355 // number of Y strips
356 Int_t nStrY=AliMUONTriggerConstants::NstripY(ModuleNumber(idModule));
357 Int_t idSector=segmentation->Sector(idModule,0); // corresp. sector
358 Float_t width=segmentation->Dpx(idSector); // corresponding strip width
360 // first case : up middle and down parts have all 8 or 16 strip
361 if ((nStrY==16)||(nStrY==8&&fX2m==0&&fX2ud==0)) {
362 for (istrip=0; istrip<nStrY; istrip++) {
363 segmentation->GetPadC(idModule,istrip,x,y,z);
366 // second case : mixing 8 and 16 strips within same circuit
368 for (istrip=0; istrip<nStrY; istrip++) {
369 if (nStrY!=8) { printf(" bug in LoadXpos \n");}
370 segmentation->GetPadC(idModule,istrip,x,y,z);
371 fXpos11[2*istrip]=x-width/4.;
372 fXpos11[2*istrip+1]=fXpos11[2*istrip]+width/2.;
377 //----------------------------------------------------------------------
378 Float_t AliMUONTriggerCircuit::PtCal(Int_t istripX, Int_t idev, Int_t istripY){
379 // returns calculated pt for circuit/istripX/idev/istripY according
380 // to the formula of the TRD. Note : idev (input) is in [0+30]
382 // Int_t jdev = idev - 15; // jdev in [-15+15]
383 Int_t istripX2=istripX+idev+1; // find istripX2 using istripX and idev
385 Float_t yPosX1=fYpos11[istripX];
386 Float_t yPosX2=fYpos21[istripX2];
387 Float_t xPosY1=fXpos11[istripY];
390 Float_t z1=AliMUONConstants::DefaultChamberZ(10);
391 Float_t z2=AliMUONConstants::DefaultChamberZ(12);
392 Float_t thetaDev=(1./zf)*(yPosX1*z2-yPosX2*z1)/(z2-z1);
393 Float_t xf=xPosY1*zf/z1;
394 Float_t yf=yPosX2-((yPosX2-yPosX1)*(z2-zf))/(z2-z1);
395 return (3.*0.3/TMath::Abs(thetaDev)) * TMath::Sqrt(xf*xf+yf*yf)/zf;
398 //----------------------------------------------------------------------
399 //--- methods which return member data related info
400 //----------------------------------------------------------------------
401 Int_t AliMUONTriggerCircuit::GetIdCircuit() const {
402 // returns circuit Id
405 //----------------------------------------------------------------------
406 Int_t AliMUONTriggerCircuit::GetIdModule() const {
408 return Module(fIdCircuit);
410 //----------------------------------------------------------------------
411 Int_t AliMUONTriggerCircuit::GetNstripX() const {
412 // returns the number of X strips in the module where the circuit is sitting
413 return AliMUONTriggerConstants::NstripX(ModuleNumber(Module(fIdCircuit)));
415 //----------------------------------------------------------------------
416 Int_t AliMUONTriggerCircuit::GetNstripY() const {
417 // returns the number of Y strips in the module where the circuit is sitting
418 return AliMUONTriggerConstants::NstripY(ModuleNumber(Module(fIdCircuit)));
420 //----------------------------------------------------------------------
421 Int_t AliMUONTriggerCircuit::GetPosCircuit() const {
422 // returns the position of the circuit in its module
423 return Position(fIdCircuit);
425 //----------------------------------------------------------------------
426 Int_t AliMUONTriggerCircuit::GetIdCircuitD() const {
427 // returns the Id of the circuit down
428 Int_t idModule=Module(fIdCircuit);
429 Int_t idModuleD=(TMath::Abs(idModule)+10)*(TMath::Abs(idModule)/idModule);
430 return (TMath::Abs(idModuleD)*10+1)*(TMath::Abs(idModule)/idModule);
432 //----------------------------------------------------------------------
433 Int_t AliMUONTriggerCircuit::GetICircuitD() const {
434 // returns the number of the circuit down
435 Int_t idModule=Module(fIdCircuit);
436 Int_t idModuleD=(TMath::Abs(idModule)+10)*(TMath::Abs(idModule)/idModule);
438 (TMath::Abs(idModuleD)*10+1)*(TMath::Abs(idModule)/idModule);
439 return CircuitNumber(idCircuitD);
441 //----------------------------------------------------------------------
442 Int_t AliMUONTriggerCircuit::GetIdCircuitU() const {
443 // returns the Id of the circuit up
444 Int_t idModule=Module(fIdCircuit);
445 Int_t idModuleU=(TMath::Abs(idModule)-10)*(TMath::Abs(idModule)/idModule);
446 return (TMath::Abs(idModuleU)*10+1)*(TMath::Abs(idModule)/idModule);
448 //----------------------------------------------------------------------
449 Int_t AliMUONTriggerCircuit::GetICircuitU() const {
450 // returns the number of the circuit up
451 Int_t idModule=Module(fIdCircuit);
452 Int_t idModuleU=(TMath::Abs(idModule)-10)*(TMath::Abs(idModule)/idModule);
454 (TMath::Abs(idModuleU)*10+1)*(TMath::Abs(idModule)/idModule);
455 return CircuitNumber(idCircuitU);
457 //----------------------------------------------------------------------
458 Int_t AliMUONTriggerCircuit::GetX2m() const {
462 //----------------------------------------------------------------------
463 Int_t AliMUONTriggerCircuit::GetX2ud() const {
467 //----------------------------------------------------------------------
468 void AliMUONTriggerCircuit::GetOrMud(Int_t orMud[2]) const {
473 //----------------------------------------------------------------------
474 Int_t AliMUONTriggerCircuit::GetXcode(Int_t chamber, Int_t istrip) const {
475 // returns X code of circuit/chamber/istrip (warning : chamber in [0,3])
476 return fXcode[chamber][istrip];
478 //----------------------------------------------------------------------
479 Int_t AliMUONTriggerCircuit::GetYcode(Int_t chamber, Int_t istrip) const {
480 // returns Y code of circuit/chamber/istrip (warning : chamber in [0,3])
481 return fYcode[chamber][istrip];
483 //----------------------------------------------------------------------
484 Float_t AliMUONTriggerCircuit::GetY11Pos(Int_t istrip) const {
485 // returns Y position of X strip istrip in MC11
486 return fYpos11[istrip];
488 //----------------------------------------------------------------------
489 Float_t AliMUONTriggerCircuit::GetY21Pos(Int_t istrip) const {
490 // returns Y position of X strip istrip in MC21
491 return fYpos21[istrip];
493 //----------------------------------------------------------------------
494 Float_t AliMUONTriggerCircuit::GetX11Pos(Int_t istrip) const {
495 // returns X position of Y strip istrip in MC11
496 return fXpos11[istrip];
498 //----------------------------------------------------------------------
499 //--- end of methods which return member data related info
500 //----------------------------------------------------------------------