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 **************************************************************************/
21 #include "AliMUONPoints.h"
22 #include "AliMUONTriggerCircuit.h"
23 #include "AliMUONTriggerConstants.h"
24 #include "AliMUONSegmentation.h"
25 #include "AliMUONResponse.h"
26 #include "AliMUONChamber.h"
30 ClassImp(AliMUONTriggerCircuit)
32 //----------------------------------------------------------------------
33 AliMUONTriggerCircuit::AliMUONTriggerCircuit()
39 fOrMud[0]=fOrMud[1]=0;
42 for (Int_t j=0; j<32; j++) {
47 for (i=0; i<16; i++) { fXpos11[i]=0.; }
48 for (i=0; i<31; i++) { fYpos11[i]=0.; }
49 for (i=0; i<63; i++) { fYpos21[i]=0.; }
52 //----------------------------------------------------------------------
53 AliMUONTriggerCircuit::AliMUONTriggerCircuit(const AliMUONTriggerCircuit& MUONTriggerCircuit)
55 // Dummy copy constructor
58 //----------------------------------------------------------------------
59 AliMUONTriggerCircuit & AliMUONTriggerCircuit::operator=(const AliMUONTriggerCircuit& MUONTriggerCircuit)
61 // Dummy assignment operator
65 //----------------------------------------------------------------------
66 void AliMUONTriggerCircuit::Init(Int_t iCircuit) {
67 // initialize circuit characteristics
68 fidCircuit=AliMUONTriggerConstants::CircuitId(iCircuit);
76 //----------------------------------------------------------------------
77 Int_t AliMUONTriggerCircuit::CircuitNumber(Int_t idCircuit){
78 // returns circuit number iCircuit (0-234) corresponding to circuit idCircuit
80 for (Int_t i=0; i<234; i++) {
81 if (AliMUONTriggerConstants::CircuitId(i)==idCircuit) {
88 //----------------------------------------------------------------------
89 Int_t AliMUONTriggerCircuit::ModuleNumber(Int_t idModule){
90 // returns module number imod (from 0 to 63) corresponding to module idmodule
91 Int_t absidModule=TMath::Abs(idModule);
93 for (Int_t i=0; i<63; i++) {
94 if (AliMUONTriggerConstants::ModuleId(i)==absidModule) {
102 //----------------------------------------------------------------------
103 Int_t AliMUONTriggerCircuit::Module(Int_t idCircuit) {
104 // returns ModuleId where Circuit idCircuit is sitting
105 return Int_t(idCircuit/10);
107 //----------------------------------------------------------------------
108 Int_t AliMUONTriggerCircuit::Position(Int_t idCircuit) {
109 // returns position of idCircuit in correcponding Module
110 return TMath::Abs(idCircuit)-TMath::Abs(Module(idCircuit))*10;
113 //----------------------------------------------------------------------
114 void AliMUONTriggerCircuit::LoadX2() {
115 // initialize fx2m, fx2ud and fOrMud
117 Int_t idModule=Module(fidCircuit); // corresponding module Id.
118 // and its number of X strips
119 Int_t nStrX=AliMUONTriggerConstants::NstripX(ModuleNumber(idModule));
120 // and its number of Y strips
121 Int_t nStrY=AliMUONTriggerConstants::NstripY(ModuleNumber(idModule));
122 Int_t iPosCircuit=Position(fidCircuit); // position of circuit in module
124 // first step : look at lower part
125 if (iPosCircuit==1) { // need to scan lower module
126 if(idModule<91&&TMath::Abs(idModule)!=41&&idModule>-91) {
128 Int_t idModuleD=(TMath::Abs(idModule)+10)*(TMath::Abs(idModule)/idModule);
129 Int_t nStrD=AliMUONTriggerConstants::NstripY(ModuleNumber(idModuleD));
132 &&TMath::Abs(idModule)!=42&&TMath::Abs(idModule)!=52) {
133 if (nStrY==8) fx2m=1;
134 if (nStrD==8) fx2ud=1;
138 } else { // lower strips within same module
142 // second step : look at upper part
143 if ((iPosCircuit==1&&nStrX==16)||(iPosCircuit==2&&nStrX==32)||
144 (iPosCircuit==3&&nStrX==48)||(iPosCircuit==4&&nStrX==64)) {
145 if ((idModule>17||idModule<-17)&&TMath::Abs(idModule)!=61) {
147 Int_t idModuleU=(TMath::Abs(idModule)-10)*(TMath::Abs(idModule)/idModule);
148 Int_t nStrU=AliMUONTriggerConstants::NstripY(ModuleNumber(idModuleU));
151 &&TMath::Abs(idModule)!=62&&TMath::Abs(idModule)!=52) {
152 if (nStrY==8) fx2m=1;
153 if (nStrU==8) fx2ud=1;
157 } else { // upper strips within same module
162 //----------------------------------------------------------------------
163 void AliMUONTriggerCircuit::LoadXCode(){
164 // assign a Id. number to each X strip of current circuit
165 // Id.=(corresponding module Id.)*100+(Id. strip of module)
167 // first part : fill XMC11 XMC12 and strips 8 to 24 (middle) XMC21 XMC22
168 Int_t iStripCircMT1=0, iStripCircMT2=8;
169 Int_t idModule=Module(fidCircuit); // corresponding module Id.
170 // and its number of strips
171 Int_t nStrX=AliMUONTriggerConstants::NstripX(ModuleNumber(idModule));
172 Int_t iPosCircuit=Position(fidCircuit); // position of circuit in module
173 Int_t sign=TMath::Abs(idModule)/idModule; // left or right
176 for (istrip=(iPosCircuit-1)*16;
177 istrip<(iPosCircuit-1)*16+16; istrip++) {
179 fXcode[0][iStripCircMT1]=sign*(TMath::Abs(idModule)*100+istrip);
180 fXcode[1][iStripCircMT1]=sign*(TMath::Abs(idModule)*100+istrip);
181 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
182 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
188 // XMC21 XMC22 strips 0 to 7 and 24 to 31
189 Int_t idModuleD, idModuleU;
192 idModule=Module(fidCircuit); // corresponding module Id.
193 // number of X strips
194 nStrX=AliMUONTriggerConstants::NstripX(ModuleNumber(idModule));
195 sign=TMath::Abs(idModule)/idModule;
197 // fill lower part (0 to 7)
198 if (iPosCircuit==1) { // need to scan lower module
199 if(idModule<91&&TMath::Abs(idModule)!=41&&idModule>-91) { // non-existing
200 idModuleD=sign*(TMath::Abs(idModule)+10); // lower module Id
201 // and its number of strips
202 nStrD=AliMUONTriggerConstants::NstripX(ModuleNumber(idModuleD));
205 for (istrip=nStrD-8; istrip<nStrD; istrip++) {
206 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModuleD)*100+istrip);
207 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModuleD)*100+istrip);
212 } else { // lower strips within same module
215 for (istrip=(iPosCircuit-1)*16-8;
216 istrip<(iPosCircuit-1)*16; istrip++) {
217 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
218 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
223 // fill upper part (24 to 31)
224 if ((iPosCircuit==1&&nStrX==16)||(iPosCircuit==2&&nStrX==32)||
225 (iPosCircuit==3&&nStrX==48)||(iPosCircuit==4&&nStrX==64)) {
226 if ((idModule>17||idModule<-17)&&TMath::Abs(idModule)!=61) {
227 idModuleU=sign*(TMath::Abs(idModule)-10); // upper module Id
228 // and its number of strips
229 nStrU=AliMUONTriggerConstants::NstripX(ModuleNumber(idModuleU));
232 for (istrip=0; istrip<8; istrip++) {
233 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModuleU)*100+istrip);
234 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModuleU)*100+istrip);
239 } else if ((iPosCircuit==1&&nStrX>16)||(iPosCircuit==2&&nStrX>32)||
240 (iPosCircuit==3&&nStrX>48)) { // upper strips within same mod.
243 for (istrip=(iPosCircuit-1)*16+16;
244 istrip<(iPosCircuit-1)*16+24; istrip++) {
245 fXcode[2][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
246 fXcode[3][iStripCircMT2]=sign*(TMath::Abs(idModule)*100+istrip);
252 //----------------------------------------------------------------------
253 void AliMUONTriggerCircuit::LoadYCode(){
254 // assign a Id. number to each Y strip of current circuit
255 // Id.=(corresponding module Id.)*100+(Id. strip of module)
256 // note : for Y plane fill only "central part" of circuit
257 // (upper and lower parts are filled in PreHandlingY of AliMUONTriggerDecision)
259 Int_t idModule=Module(fidCircuit); // corresponding module Id.
260 // and its number of Y strips
261 Int_t nStrY=AliMUONTriggerConstants::NstripY(ModuleNumber(idModule));
262 Int_t sign=TMath::Abs(idModule)/idModule; // left or right
264 for (Int_t istrip=0; istrip<nStrY; istrip++) {
265 fYcode[0][istrip]=sign*(TMath::Abs(idModule)*100+istrip);
266 fYcode[1][istrip]=sign*(TMath::Abs(idModule)*100+istrip);
267 fYcode[2][istrip]=sign*(TMath::Abs(idModule)*100+istrip);
268 fYcode[3][istrip]=sign*(TMath::Abs(idModule)*100+istrip);
272 //----------------------------------------------------------------------
273 void AliMUONTriggerCircuit::LoadYPos(){
274 // fill fYpos11 and fYpos21 -> y position of X declusterized strips
276 Int_t chamber, cathode;
277 Int_t code, idModule, idStrip, idSector;
281 AliMUON *pMUON = (AliMUON*)gAlice->GetModule("MUON");
282 AliMUONChamber* iChamber;
283 AliMUONSegmentation* segmentation;
288 iChamber = &(pMUON->Chamber(chamber-1));
289 segmentation=iChamber->SegmentationModel(cathode);
291 for (istrip=0; istrip<16; istrip++) {
292 code=fXcode[0][istrip]; // decode current strip
293 idModule=Int_t(code/100); // corresponding module Id.
294 idStrip=TMath::Abs(code-idModule*100); // corresp. strip number in module
295 idSector=segmentation->Sector(idModule,idStrip); // corresponding sector
296 width=segmentation->Dpy(idSector); // corresponding strip width
297 segmentation->GetPadCxy(idModule,idStrip,x,y); // get strip real position
300 if (istrip!=15) fYpos11[2*istrip+1]=y+width/2.;
306 iChamber = &(pMUON->Chamber(chamber-1));
307 segmentation=iChamber->SegmentationModel(cathode);
309 for (istrip=0; istrip<32; istrip++) {
310 code=fXcode[2][istrip]; // decode current strip
311 idModule=Int_t(code/100); // corresponding module Id.
312 idStrip=TMath::Abs(code-idModule*100); // corresp. strip number in module
313 idSector=segmentation->Sector(idModule,idStrip); // corresponding sector
314 width=segmentation->Dpy(idSector); // corresponding strip width
315 segmentation->GetPadCxy(idModule,idStrip,x,y); // get strip real position
317 // using idModule!=0 prevents to fill garbage in case of circuits
318 // in the first and last rows
321 if (istrip!=31) fYpos21[2*istrip+1]=y+width/2.;
326 //----------------------------------------------------------------------
327 void AliMUONTriggerCircuit::LoadXPos(){
328 // fill fXpos11 -> x position of Y strips for the first plane only
329 // fXpos11 contains the x position of Y strip for the current circuit
330 // taking into account whether or nor not part(s) of the circuit
331 // (middle, up or down) has(have) 16 strips
338 AliMUON *pMUON = (AliMUON*)gAlice->GetModule("MUON");
339 AliMUONChamber* iChamber;
340 AliMUONSegmentation* segmentation;
341 iChamber = &(pMUON->Chamber(chamber-1));
342 segmentation=iChamber->SegmentationModel(cathode);
344 Int_t idModule=Module(fidCircuit); // corresponding module Id.
345 // number of Y strips
346 Int_t nStrY=AliMUONTriggerConstants::NstripY(ModuleNumber(idModule));
347 Int_t idSector=segmentation->Sector(idModule,0); // corresp. sector
348 Float_t width=segmentation->Dpx(idSector); // corresponding strip width
350 // first case : up middle and down parts have all 8 or 16 strip
351 if ((nStrY==16)||(nStrY==8&&fx2m==0&&fx2ud==0)) {
352 for (istrip=0; istrip<nStrY; istrip++) {
353 segmentation->GetPadCxy(idModule,istrip,x,y);
356 // second case : mixing 8 and 16 strips within same circuit
358 for (istrip=0; istrip<nStrY; istrip++) {
359 if (nStrY!=8) { cout << " bug in LoadXpos " << "\n";}
360 segmentation->GetPadCxy(idModule,istrip,x,y);
361 fXpos11[2*istrip]=x-width/4.;
362 fXpos11[2*istrip+1]=fXpos11[2*istrip]+width/2.;
367 //----------------------------------------------------------------------
368 Float_t AliMUONTriggerCircuit::PtCal(Int_t istripX, Int_t idev, Int_t istripY){
369 // returns calculated pt for circuit/istripX/idev/istripY according
370 // to the formula of the TRD. Note : idev (input) is in [0+30]
372 // Int_t jdev = idev - 15; // jdev in [-15+15]
373 Int_t istripX2=istripX+idev+1; // find istripX2 using istripX and idev
375 Float_t yPosX1=fYpos11[istripX];
376 Float_t yPosX2=fYpos21[istripX2];
377 Float_t xPosY1=fXpos11[istripY];
379 Float_t zf=975., z1=1603.5, z2=1703.5;
380 Float_t thetaDev=(1./zf)*(yPosX1*z2-yPosX2*z1)/(z2-z1);
381 Float_t xf=xPosY1*zf/z1;
382 Float_t yf=yPosX2-((yPosX2-yPosX1)*(z2-zf))/(z2-z1);
383 return (3.*0.3/TMath::Abs(thetaDev)) * TMath::Sqrt(xf*xf+yf*yf)/zf;
386 //----------------------------------------------------------------------
387 //--- methods which return member data related info
388 //----------------------------------------------------------------------
389 Int_t AliMUONTriggerCircuit::GetIdCircuit(){
390 // returns circuit Id
393 //----------------------------------------------------------------------
394 Int_t AliMUONTriggerCircuit::GetIdModule(){
396 return Module(fidCircuit);
398 //----------------------------------------------------------------------
399 Int_t AliMUONTriggerCircuit::GetNstripX() {
400 // returns the number of X strips in the module where the circuit is sitting
401 return AliMUONTriggerConstants::NstripX(ModuleNumber(Module(fidCircuit)));
403 //----------------------------------------------------------------------
404 Int_t AliMUONTriggerCircuit::GetNstripY() {
405 // returns the number of Y strips in the module where the circuit is sitting
406 return AliMUONTriggerConstants::NstripY(ModuleNumber(Module(fidCircuit)));
408 //----------------------------------------------------------------------
409 Int_t AliMUONTriggerCircuit::GetPosCircuit() {
410 // returns the position of the circuit in its module
411 return Position(fidCircuit);
413 //----------------------------------------------------------------------
414 Int_t AliMUONTriggerCircuit::GetIdCircuitD(){
415 // returns the Id of the circuit down
416 Int_t idModule=Module(fidCircuit);
417 Int_t idModuleD=(TMath::Abs(idModule)+10)*(TMath::Abs(idModule)/idModule);
418 return (TMath::Abs(idModuleD)*10+1)*(TMath::Abs(idModule)/idModule);
420 //----------------------------------------------------------------------
421 Int_t AliMUONTriggerCircuit::GetICircuitD(){
422 // returns the number of the circuit down
423 Int_t idModule=Module(fidCircuit);
424 Int_t idModuleD=(TMath::Abs(idModule)+10)*(TMath::Abs(idModule)/idModule);
426 (TMath::Abs(idModuleD)*10+1)*(TMath::Abs(idModule)/idModule);
427 return CircuitNumber(idCircuitD);
429 //----------------------------------------------------------------------
430 Int_t AliMUONTriggerCircuit::GetIdCircuitU(){
431 // returns the Id of the circuit up
432 Int_t idModule=Module(fidCircuit);
433 Int_t idModuleU=(TMath::Abs(idModule)-10)*(TMath::Abs(idModule)/idModule);
434 return (TMath::Abs(idModuleU)*10+1)*(TMath::Abs(idModule)/idModule);
436 //----------------------------------------------------------------------
437 Int_t AliMUONTriggerCircuit::GetICircuitU(){
438 // returns the number of the circuit up
439 Int_t idModule=Module(fidCircuit);
440 Int_t idModuleU=(TMath::Abs(idModule)-10)*(TMath::Abs(idModule)/idModule);
442 (TMath::Abs(idModuleU)*10+1)*(TMath::Abs(idModule)/idModule);
443 return CircuitNumber(idCircuitU);
445 //----------------------------------------------------------------------
446 Int_t AliMUONTriggerCircuit::GetX2m(){
450 //----------------------------------------------------------------------
451 Int_t AliMUONTriggerCircuit::GetX2ud(){
455 //----------------------------------------------------------------------
456 void AliMUONTriggerCircuit::GetOrMud(Int_t orMud[2]){
461 //----------------------------------------------------------------------
462 Int_t AliMUONTriggerCircuit::GetXcode(Int_t chamber, Int_t istrip){
463 // returns X code of circuit/chamber/istrip (warning : chamber in [0,3])
464 return fXcode[chamber][istrip];
466 //----------------------------------------------------------------------
467 Int_t AliMUONTriggerCircuit::GetYcode(Int_t chamber, Int_t istrip){
468 // returns Y code of circuit/chamber/istrip (warning : chamber in [0,3])
469 return fYcode[chamber][istrip];
471 //----------------------------------------------------------------------
472 Float_t AliMUONTriggerCircuit::GetY11Pos(Int_t istrip){
473 // returns Y position of X strip istrip in MC11
474 return fYpos11[istrip];
476 //----------------------------------------------------------------------
477 Float_t AliMUONTriggerCircuit::GetY21Pos(Int_t istrip){
478 // returns Y position of X strip istrip in MC21
479 return fYpos21[istrip];
481 //----------------------------------------------------------------------
482 Float_t AliMUONTriggerCircuit::GetX11Pos(Int_t istrip){
483 // returns X position of Y strip istrip in MC11
484 return fXpos11[istrip];
486 //----------------------------------------------------------------------
487 //--- end of methods which return member data related info
488 //----------------------------------------------------------------------