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 // **************************************************************************
15 #include "AliHMPIDParam.h" //class header
16 #include "AliHMPIDDigit.h" //ctor
17 #include "AliLog.h" //general
18 #include <AliRunLoader.h> //Stack()
19 #include <AliStack.h> //Stack()
20 #include <TLatex.h> //TestTrans()
21 #include <TView.h> //TestTrans()
22 #include <TPolyMarker3D.h> //TestTrans()
23 #include <TRotation.h>
24 #include <TParticle.h> //Stack()
25 #include <TGeoPhysicalNode.h> //ctor
27 ClassImp(AliHMPIDParam)
30 Float_t AliHMPIDParam::fgkMinPcX[]={0.,0.,0.,0.,0.,0.};
31 Float_t AliHMPIDParam::fgkMaxPcX[]={0.,0.,0.,0.,0.,0.};
32 Float_t AliHMPIDParam::fgkMinPcY[]={0.,0.,0.,0.,0.,0.};
33 Float_t AliHMPIDParam::fgkMaxPcY[]={0.,0.,0.,0.,0.,0.};
35 Float_t AliHMPIDParam::fgCellX=0.;
36 Float_t AliHMPIDParam::fgCellY=0.;
38 Float_t AliHMPIDParam::fgPcX=0;
39 Float_t AliHMPIDParam::fgPcY=0;
41 Float_t AliHMPIDParam::fgAllX=0;
42 Float_t AliHMPIDParam::fgAllY=0;
44 Int_t AliHMPIDParam::fgSigmas=4;
46 AliHMPIDParam* AliHMPIDParam::fgInstance=0x0; //singleton pointer
47 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
48 AliHMPIDParam::AliHMPIDParam(Bool_t noGeo=kFALSE):TNamed("HmpidParam","default version")
50 // Here all the intitializition is taken place when AliHMPIDParam::Instance() is invoked for the first time.
51 // In particular, matrices to be used for LORS<->MARS trasnformations are initialized from TGeo structure.
52 // Note that TGeoManager should be already initialized from geometry.root file
54 fRadNmean = MeanIdxRad(); //initialization of the running ref. index of freon
56 Float_t dead=2.6;// cm of the dead zones between PCs-> See 2CRC2099P1
58 if(noGeo==kFALSE && !gGeoManager)
60 TGeoManager::Import("geometry.root");
61 if(!gGeoManager) AliFatal("!!!!!!No geometry loaded!!!!!!!");
64 fgCellX=0.8;fgCellY=0.84;
67 TGeoVolume *pCellVol = gGeoManager->GetVolume("Hcel");
69 TGeoBBox *bcell = (TGeoBBox *)pCellVol->GetShape();
70 fgCellX=2.*bcell->GetDX(); fgCellY = 2.*bcell->GetDY(); // overwrite the values with the read ones
73 fgPcX=80.*fgCellX; fgPcY = 48.*fgCellY;
75 fgAllY=3.*fgPcY+2.*dead;
77 fgkMinPcX[1]=fgPcX+dead; fgkMinPcX[3]=fgkMinPcX[1]; fgkMinPcX[5]=fgkMinPcX[3];
78 fgkMaxPcX[0]=fgPcX; fgkMaxPcX[2]=fgkMaxPcX[0]; fgkMaxPcX[4]=fgkMaxPcX[2];
79 fgkMaxPcX[1]=fgAllX; fgkMaxPcX[3]=fgkMaxPcX[1]; fgkMaxPcX[5]=fgkMaxPcX[3];
81 fgkMinPcY[2]=fgPcY+dead; fgkMinPcY[3]=fgkMinPcY[2];
82 fgkMinPcY[4]=2.*fgPcY+2.*dead; fgkMinPcY[5]=fgkMinPcY[4];
83 fgkMaxPcY[0]=fgPcY; fgkMaxPcY[1]=fgkMaxPcY[0];
84 fgkMaxPcY[2]=2.*fgPcY+dead; fgkMaxPcY[3]=fgkMaxPcY[2];
85 fgkMaxPcY[4]=fgAllY; fgkMaxPcY[5]=fgkMaxPcY[4];
90 for(Int_t i=kMinCh;i<=kMaxCh;i++)
91 if(gGeoManager && gGeoManager->IsClosed()) {
92 TGeoPNEntry* pne = gGeoManager->GetAlignableEntry(Form("/HMPID/Chamber%i",i));
94 AliErrorClass(Form("The symbolic volume %s does not correspond to any physical entry!",Form("HMPID_%i",i)));
95 fM[i]=new TGeoHMatrix;
96 IdealPosition(i,fM[i]);
98 TGeoPhysicalNode *pnode = pne->GetPhysicalNode();
99 if(pnode) fM[i]=pnode->GetMatrix();
101 fM[i]=new TGeoHMatrix;
102 IdealPosition(i,fM[i]);
106 fM[i]=new TGeoHMatrix;
107 IdealPosition(i,fM[i]);
111 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
112 void AliHMPIDParam::Print(Option_t* opt) const
114 // print some usefull (hopefully) info on some internal guts of HMPID parametrisation
116 for(Int_t i=0;i<7;i++) fM[i]->Print(opt);
118 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
119 void AliHMPIDParam::IdealPosition(Int_t iCh, TGeoHMatrix *pMatrix)
121 // Construct ideal position matrix for a given chamber
122 // Arguments: iCh- chamber ID; pMatrix- pointer to precreated unity matrix where to store the results
124 const Double_t kAngHor=19.5; // horizontal angle between chambers 19.5 grad
125 const Double_t kAngVer=20; // vertical angle between chambers 20 grad
126 const Double_t kAngCom=30; // common HMPID rotation with respect to x axis 30 grad
127 const Double_t kTrans[3]={490,0,0}; // center of the chamber is on window-gap surface
128 pMatrix->RotateY(90); // rotate around y since initial position is in XY plane -> now in YZ plane
129 pMatrix->SetTranslation(kTrans); // now plane in YZ is shifted along x
131 case 0: pMatrix->RotateY(kAngHor); pMatrix->RotateZ(-kAngVer); break; //right and down
132 case 1: pMatrix->RotateZ(-kAngVer); break; //down
133 case 2: pMatrix->RotateY(kAngHor); break; //right
134 case 3: break; //no rotation
135 case 4: pMatrix->RotateY(-kAngHor); break; //left
136 case 5: pMatrix->RotateZ(kAngVer); break; //up
137 case 6: pMatrix->RotateY(-kAngHor); pMatrix->RotateZ(kAngVer); break; //left and up
139 pMatrix->RotateZ(kAngCom); //apply common rotation in XY plane
142 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
143 Int_t AliHMPIDParam::Stack(Int_t evt,Int_t tid)
145 // Prints some useful info from stack
146 // Arguments: evt - event number. if not -1 print info only for that event
147 // tid - track id. if not -1 then print it and all it's mothers if any
148 // Returns: mother tid of the given tid if any
149 AliRunLoader *pAL=AliRunLoader::Open();
150 if(pAL->LoadHeader()) return -1;
151 if(pAL->LoadKinematics()) return -1;
154 Int_t iNevt=pAL->GetNumberOfEvents();
156 for(Int_t iEvt=0;iEvt<iNevt;iEvt++){//events loop
157 if(evt!=-1 && evt!=iEvt) continue; //in case one needs to print the requested event, ignore all others
159 AliStack *pStack=pAL->Stack();
160 if(tid==-1){ //print all tids for this event
161 for(Int_t i=0;i<pStack->GetNtrack();i++) pStack->Particle(i)->Print();
162 Printf("totally %i tracks including %i primaries for event %i out of %i event(s)",
163 pStack->GetNtrack(),pStack->GetNprimary(),iEvt,iNevt);
164 }else{ //print only this tid and it;s mothers
165 if(tid<0 || tid>pStack->GetNtrack()) {Printf("Wrong tid, valid tid range for event %i is 0-%i",iEvt,pStack->GetNtrack());break;}
166 TParticle *pTrack=pStack->Particle(tid); mtid=pTrack->GetFirstMother();
167 TString str=pTrack->GetName();
168 while((tid=pTrack->GetFirstMother()) >= 0){
169 pTrack=pStack->Particle(tid);
170 str+=" from ";str+=pTrack->GetName();
174 pAL->UnloadHeader(); pAL->UnloadKinematics();
177 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
178 Int_t AliHMPIDParam::StackCount(Int_t pid,Int_t evt)
180 // Counts total number of particles of given sort (including secondary) for a given event
181 AliRunLoader *pAL=AliRunLoader::Open();
183 if(pAL->LoadHeader()) return 0;
184 if(pAL->LoadKinematics()) return 0;
185 AliStack *pStack=pAL->Stack();
188 for(Int_t i=0;i<pStack->GetNtrack();i++) if(pStack->Particle(i)->GetPdgCode()==pid) iCnt++;
190 pAL->UnloadHeader(); pAL->UnloadKinematics();
193 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++