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"
27 ClassImp(AliMUONTriggerCircuit)
29 //----------------------------------------------------------------------
30 AliMUONTriggerCircuit::AliMUONTriggerCircuit()
38 fOrMud[0]=fOrMud[1]=0;
41 for (Int_t j=0; j<32; j++) {
46 for (i=0; i<16; i++) { fXpos11[i]=0.; }
47 for (i=0; i<31; i++) { fYpos11[i]=0.; }
48 for (i=0; i<63; i++) { fYpos21[i]=0.; }
51 //----------------------------------------------------------------------
52 AliMUONTriggerCircuit::AliMUONTriggerCircuit(const AliMUONTriggerCircuit& theMUONTriggerCircuit)
53 : TObject(theMUONTriggerCircuit)
55 // Protected copy constructor
57 Fatal("AliMUONTriggerCircuit", "Not implemented.");
60 //----------------------------------------------------------------------
61 AliMUONTriggerCircuit &
62 AliMUONTriggerCircuit::operator=(const AliMUONTriggerCircuit& rhs)
64 // Protected assignement operator
66 if (this == &rhs) return *this;
68 Fatal("operator=", "Not implemented.");
73 //----------------------------------------------------------------------
74 void AliMUONTriggerCircuit::Init(Int_t iCircuit) {
75 // initialize circuit characteristics
76 fIdCircuit=AliMUONTriggerConstants::CircuitId(iCircuit);
84 //----------------------------------------------------------------------
85 Int_t AliMUONTriggerCircuit::CircuitNumber(Int_t idCircuit) const {
86 // returns circuit number iCircuit (0-234) corresponding to circuit idCircuit
88 for (Int_t i=0; i<234; i++) {
89 if (AliMUONTriggerConstants::CircuitId(i)==idCircuit) {
96 //----------------------------------------------------------------------
97 Int_t AliMUONTriggerCircuit::ModuleNumber(Int_t idModule) const {
98 // returns module number imod (from 0 to 63) corresponding to module idmodule
99 Int_t absidModule=TMath::Abs(idModule);
101 for (Int_t i=0; i<63; i++) {
102 if (AliMUONTriggerConstants::ModuleId(i)==absidModule) {
110 //----------------------------------------------------------------------
111 Int_t AliMUONTriggerCircuit::Module(Int_t idCircuit) const {
112 // returns ModuleId where Circuit idCircuit is sitting
113 return Int_t(idCircuit/10);
115 //----------------------------------------------------------------------
116 Int_t AliMUONTriggerCircuit::Position(Int_t idCircuit) const {
117 // returns position of idCircuit in correcponding Module
118 return TMath::Abs(idCircuit)-TMath::Abs(Module(idCircuit))*10;
121 //----------------------------------------------------------------------
122 void AliMUONTriggerCircuit::LoadX2() {
123 // initialize fX2m, fX2ud and fOrMud
125 Int_t idModule=Module(fIdCircuit); // corresponding module Id.
126 // and its number of X strips
127 Int_t nStrX=AliMUONTriggerConstants::NstripX(ModuleNumber(idModule));
128 // and its number of Y strips
129 Int_t nStrY=AliMUONTriggerConstants::NstripY(ModuleNumber(idModule));
130 Int_t iPosCircuit=Position(fIdCircuit); // position of circuit in module
132 // first step : look at lower part
133 if (iPosCircuit==1) { // need to scan lower module
134 if(idModule<91&&TMath::Abs(idModule)!=41&&idModule>-91) {
136 Int_t idModuleD=(TMath::Abs(idModule)+10)*(TMath::Abs(idModule)/idModule);
137 Int_t nStrD=AliMUONTriggerConstants::NstripY(ModuleNumber(idModuleD));
140 &&TMath::Abs(idModule)!=42&&TMath::Abs(idModule)!=52) {
141 if (nStrY==8) fX2m=1;
142 if (nStrD==8) fX2ud=1;
146 } else { // lower strips within same module
150 // second step : look at upper part
151 if ((iPosCircuit==1&&nStrX==16)||(iPosCircuit==2&&nStrX==32)||
152 (iPosCircuit==3&&nStrX==48)||(iPosCircuit==4&&nStrX==64)) {
153 if ((idModule>17||idModule<-17)&&TMath::Abs(idModule)!=61) {
155 Int_t idModuleU=(TMath::Abs(idModule)-10)*(TMath::Abs(idModule)/idModule);
156 Int_t nStrU=AliMUONTriggerConstants::NstripY(ModuleNumber(idModuleU));
159 &&TMath::Abs(idModule)!=62&&TMath::Abs(idModule)!=52) {
160 if (nStrY==8) fX2m=1;
161 if (nStrU==8) fX2ud=1;
165 } else { // upper strips within same module
170 //----------------------------------------------------------------------
171 void AliMUONTriggerCircuit::LoadXCode(){
172 // assign a Id. number to each X strip of current circuit
173 // Id.=(corresponding module Id.)*100+(Id. strip of module)
175 // first part : fill XMC11 XMC12 and strips 8 to 24 (middle) XMC21 XMC22
176 Int_t iStripCircMT1=0, iStripCircMT2=8;
177 Int_t idModule=Module(fIdCircuit); // corresponding module Id.
178 // and its number of strips
179 Int_t nStrX=AliMUONTriggerConstants::NstripX(ModuleNumber(idModule));
180 Int_t iPosCircuit=Position(fIdCircuit); // position of circuit in module
181 Int_t sign=TMath::Abs(idModule)/idModule; // left or right
184 for (istrip=(iPosCircuit-1)*16;
185 istrip<(iPosCircuit-1)*16+16; istrip++) {
187 fXcode[0][iStripCircMT1]=sign*(TMath::Abs(idModule)*100+istrip);
188 fXcode[1][iStripCircMT1]=sign*(TMath::Abs(idModule)*100+istrip);
189 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
190 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
196 // XMC21 XMC22 strips 0 to 7 and 24 to 31
197 Int_t idModuleD, idModuleU;
200 idModule=Module(fIdCircuit); // corresponding module Id.
201 // number of X strips
202 nStrX=AliMUONTriggerConstants::NstripX(ModuleNumber(idModule));
203 sign=TMath::Abs(idModule)/idModule;
205 // fill lower part (0 to 7)
206 if (iPosCircuit==1) { // need to scan lower module
207 if(idModule<91&&TMath::Abs(idModule)!=41&&idModule>-91) { // non-existing
208 idModuleD=sign*(TMath::Abs(idModule)+10); // lower module Id
209 // and its number of strips
210 nStrD=AliMUONTriggerConstants::NstripX(ModuleNumber(idModuleD));
213 for (istrip=nStrD-8; istrip<nStrD; istrip++) {
214 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModuleD)*100+istrip);
215 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModuleD)*100+istrip);
220 } else { // lower strips within same module
223 for (istrip=(iPosCircuit-1)*16-8;
224 istrip<(iPosCircuit-1)*16; istrip++) {
225 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
226 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
231 // fill upper part (24 to 31)
232 if ((iPosCircuit==1&&nStrX==16)||(iPosCircuit==2&&nStrX==32)||
233 (iPosCircuit==3&&nStrX==48)||(iPosCircuit==4&&nStrX==64)) {
234 if ((idModule>17||idModule<-17)&&TMath::Abs(idModule)!=61) {
235 idModuleU=sign*(TMath::Abs(idModule)-10); // upper module Id
236 // and its number of strips
237 nStrU=AliMUONTriggerConstants::NstripX(ModuleNumber(idModuleU));
240 for (istrip=0; istrip<8; istrip++) {
241 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModuleU)*100+istrip);
242 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModuleU)*100+istrip);
247 } else if ((iPosCircuit==1&&nStrX>16)||(iPosCircuit==2&&nStrX>32)||
248 (iPosCircuit==3&&nStrX>48)) { // upper strips within same mod.
251 for (istrip=(iPosCircuit-1)*16+16;
252 istrip<(iPosCircuit-1)*16+24; istrip++) {
253 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
254 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
260 //----------------------------------------------------------------------
261 void AliMUONTriggerCircuit::LoadYCode(){
262 // assign a Id. number to each Y strip of current circuit
263 // Id.=(corresponding module Id.)*100+(Id. strip of module)
264 // note : for Y plane fill only "central part" of circuit
265 // (upper and lower parts are filled in PreHandlingY of AliMUONTriggerDecision)
267 Int_t idModule=Module(fIdCircuit); // corresponding module Id.
268 // and its number of Y strips
269 Int_t nStrY=AliMUONTriggerConstants::NstripY(ModuleNumber(idModule));
270 Int_t sign=TMath::Abs(idModule)/idModule; // left or right
272 for (Int_t istrip=0; istrip<nStrY; istrip++) {
273 fYcode[0][istrip]=sign*(TMath::Abs(idModule)*100+istrip);
274 fYcode[1][istrip]=sign*(TMath::Abs(idModule)*100+istrip);
275 fYcode[2][istrip]=sign*(TMath::Abs(idModule)*100+istrip);
276 fYcode[3][istrip]=sign*(TMath::Abs(idModule)*100+istrip);
280 //----------------------------------------------------------------------
281 void AliMUONTriggerCircuit::LoadYPos(){
282 // fill fYpos11 and fYpos21 -> y position of X declusterized strips
284 Int_t chamber, cathode;
285 Int_t code, idModule, idStrip, idSector;
286 Float_t x, y, z, width;
289 AliMUON *pMUON = (AliMUON*)gAlice->GetModule("MUON");
290 AliMUONChamber* iChamber;
291 AliSegmentation* segmentation;
296 iChamber = &(pMUON->Chamber(chamber-1));
297 segmentation=iChamber->SegmentationModel(cathode);
299 for (istrip=0; istrip<16; istrip++) {
300 code=fXcode[0][istrip]; // decode current strip
301 idModule=Int_t(code/100); // corresponding module Id.
302 idStrip=TMath::Abs(code-idModule*100); // corresp. strip number in module
303 idSector=segmentation->Sector(idModule,idStrip); // corresponding sector
304 width=segmentation->Dpy(idSector); // corresponding strip width
305 segmentation->GetPadC(idModule,idStrip,x,y,z); // get strip real position
308 if (istrip!=15) fYpos11[2*istrip+1]=y+width/2.;
314 iChamber = &(pMUON->Chamber(chamber-1));
315 segmentation=iChamber->SegmentationModel(cathode);
317 for (istrip=0; istrip<32; istrip++) {
318 code=fXcode[2][istrip]; // decode current strip
319 idModule=Int_t(code/100); // corresponding module Id.
320 idStrip=TMath::Abs(code-idModule*100); // corresp. strip number in module
321 idSector=segmentation->Sector(idModule,idStrip); // corresponding sector
322 width=segmentation->Dpy(idSector); // corresponding strip width
323 segmentation->GetPadC(idModule,idStrip,x,y,z); // get strip real position
325 // using idModule!=0 prevents to fill garbage in case of circuits
326 // in the first and last rows
329 if (istrip!=31) fYpos21[2*istrip+1]=y+width/2.;
334 //----------------------------------------------------------------------
335 void AliMUONTriggerCircuit::LoadXPos(){
336 // fill fXpos11 -> x position of Y strips for the first plane only
337 // fXpos11 contains the x position of Y strip for the current circuit
338 // taking into account whether or nor not part(s) of the circuit
339 // (middle, up or down) has(have) 16 strips
346 AliMUON *pMUON = (AliMUON*)gAlice->GetModule("MUON");
347 AliMUONChamber* iChamber;
348 AliSegmentation* segmentation;
349 iChamber = &(pMUON->Chamber(chamber-1));
350 segmentation=iChamber->SegmentationModel(cathode);
352 Int_t idModule=Module(fIdCircuit); // corresponding module Id.
353 // number of Y strips
354 Int_t nStrY=AliMUONTriggerConstants::NstripY(ModuleNumber(idModule));
355 Int_t idSector=segmentation->Sector(idModule,0); // corresp. sector
356 Float_t width=segmentation->Dpx(idSector); // corresponding strip width
358 // first case : up middle and down parts have all 8 or 16 strip
359 if ((nStrY==16)||(nStrY==8&&fX2m==0&&fX2ud==0)) {
360 for (istrip=0; istrip<nStrY; istrip++) {
361 segmentation->GetPadC(idModule,istrip,x,y,z);
364 // second case : mixing 8 and 16 strips within same circuit
366 for (istrip=0; istrip<nStrY; istrip++) {
367 if (nStrY!=8) { printf(" bug in LoadXpos \n");}
368 segmentation->GetPadC(idModule,istrip,x,y,z);
369 fXpos11[2*istrip]=x-width/4.;
370 fXpos11[2*istrip+1]=fXpos11[2*istrip]+width/2.;
375 //----------------------------------------------------------------------
376 Float_t AliMUONTriggerCircuit::PtCal(Int_t istripX, Int_t idev, Int_t istripY){
377 // returns calculated pt for circuit/istripX/idev/istripY according
378 // to the formula of the TRD. Note : idev (input) is in [0+30]
380 // Int_t jdev = idev - 15; // jdev in [-15+15]
381 Int_t istripX2=istripX+idev+1; // find istripX2 using istripX and idev
383 Float_t yPosX1=fYpos11[istripX];
384 Float_t yPosX2=fYpos21[istripX2];
385 Float_t xPosY1=fXpos11[istripY];
387 Float_t zf=975., z1=1603.5, z2=1703.5;
388 Float_t thetaDev=(1./zf)*(yPosX1*z2-yPosX2*z1)/(z2-z1);
389 Float_t xf=xPosY1*zf/z1;
390 Float_t yf=yPosX2-((yPosX2-yPosX1)*(z2-zf))/(z2-z1);
391 return (3.*0.3/TMath::Abs(thetaDev)) * TMath::Sqrt(xf*xf+yf*yf)/zf;
394 //----------------------------------------------------------------------
395 //--- methods which return member data related info
396 //----------------------------------------------------------------------
397 Int_t AliMUONTriggerCircuit::GetIdCircuit() const {
398 // returns circuit Id
401 //----------------------------------------------------------------------
402 Int_t AliMUONTriggerCircuit::GetIdModule() const {
404 return Module(fIdCircuit);
406 //----------------------------------------------------------------------
407 Int_t AliMUONTriggerCircuit::GetNstripX() const {
408 // returns the number of X strips in the module where the circuit is sitting
409 return AliMUONTriggerConstants::NstripX(ModuleNumber(Module(fIdCircuit)));
411 //----------------------------------------------------------------------
412 Int_t AliMUONTriggerCircuit::GetNstripY() const {
413 // returns the number of Y strips in the module where the circuit is sitting
414 return AliMUONTriggerConstants::NstripY(ModuleNumber(Module(fIdCircuit)));
416 //----------------------------------------------------------------------
417 Int_t AliMUONTriggerCircuit::GetPosCircuit() const {
418 // returns the position of the circuit in its module
419 return Position(fIdCircuit);
421 //----------------------------------------------------------------------
422 Int_t AliMUONTriggerCircuit::GetIdCircuitD() const {
423 // returns the Id of the circuit down
424 Int_t idModule=Module(fIdCircuit);
425 Int_t idModuleD=(TMath::Abs(idModule)+10)*(TMath::Abs(idModule)/idModule);
426 return (TMath::Abs(idModuleD)*10+1)*(TMath::Abs(idModule)/idModule);
428 //----------------------------------------------------------------------
429 Int_t AliMUONTriggerCircuit::GetICircuitD() const {
430 // returns the number of the circuit down
431 Int_t idModule=Module(fIdCircuit);
432 Int_t idModuleD=(TMath::Abs(idModule)+10)*(TMath::Abs(idModule)/idModule);
434 (TMath::Abs(idModuleD)*10+1)*(TMath::Abs(idModule)/idModule);
435 return CircuitNumber(idCircuitD);
437 //----------------------------------------------------------------------
438 Int_t AliMUONTriggerCircuit::GetIdCircuitU() const {
439 // returns the Id of the circuit up
440 Int_t idModule=Module(fIdCircuit);
441 Int_t idModuleU=(TMath::Abs(idModule)-10)*(TMath::Abs(idModule)/idModule);
442 return (TMath::Abs(idModuleU)*10+1)*(TMath::Abs(idModule)/idModule);
444 //----------------------------------------------------------------------
445 Int_t AliMUONTriggerCircuit::GetICircuitU() const {
446 // returns the number of the circuit up
447 Int_t idModule=Module(fIdCircuit);
448 Int_t idModuleU=(TMath::Abs(idModule)-10)*(TMath::Abs(idModule)/idModule);
450 (TMath::Abs(idModuleU)*10+1)*(TMath::Abs(idModule)/idModule);
451 return CircuitNumber(idCircuitU);
453 //----------------------------------------------------------------------
454 Int_t AliMUONTriggerCircuit::GetX2m() const {
458 //----------------------------------------------------------------------
459 Int_t AliMUONTriggerCircuit::GetX2ud() const {
463 //----------------------------------------------------------------------
464 void AliMUONTriggerCircuit::GetOrMud(Int_t orMud[2]) const {
469 //----------------------------------------------------------------------
470 Int_t AliMUONTriggerCircuit::GetXcode(Int_t chamber, Int_t istrip) const {
471 // returns X code of circuit/chamber/istrip (warning : chamber in [0,3])
472 return fXcode[chamber][istrip];
474 //----------------------------------------------------------------------
475 Int_t AliMUONTriggerCircuit::GetYcode(Int_t chamber, Int_t istrip) const {
476 // returns Y code of circuit/chamber/istrip (warning : chamber in [0,3])
477 return fYcode[chamber][istrip];
479 //----------------------------------------------------------------------
480 Float_t AliMUONTriggerCircuit::GetY11Pos(Int_t istrip) const {
481 // returns Y position of X strip istrip in MC11
482 return fYpos11[istrip];
484 //----------------------------------------------------------------------
485 Float_t AliMUONTriggerCircuit::GetY21Pos(Int_t istrip) const {
486 // returns Y position of X strip istrip in MC21
487 return fYpos21[istrip];
489 //----------------------------------------------------------------------
490 Float_t AliMUONTriggerCircuit::GetX11Pos(Int_t istrip) const {
491 // returns X position of Y strip istrip in MC11
492 return fXpos11[istrip];
494 //----------------------------------------------------------------------
495 //--- end of methods which return member data related info
496 //----------------------------------------------------------------------