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d3da6dc4 | 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 | #include "AliHMPIDParam.h" //class header | |
16 | #include "AliHMPIDDigit.h" //ctor | |
17 | #include <TCanvas.h> //TestXXX() | |
18 | #include <TLatex.h> //TestTrans() | |
19 | #include <TView.h> //TestTrans() | |
20 | #include <TPolyMarker3D.h> //TestTrans() | |
21 | #include <TRotation.h> | |
22 | #include <AliRunLoader.h> //Stack() | |
23 | #include <AliStack.h> //Stack() | |
24 | #include <TParticle.h> //Stack() | |
97eadc2b | 25 | #include <TGeoPhysicalNode.h> //ctor |
d3da6dc4 | 26 | |
27 | ClassImp(AliHMPIDParam) | |
28 | ||
29 | AliHMPIDParam* AliHMPIDParam::fgInstance=0x0; //singleton pointer | |
30 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
2df6b16e | 31 | AliHMPIDParam::AliHMPIDParam():TNamed("HmpidParam","default version") |
d3da6dc4 | 32 | { |
33 | // Here all the intitializition is taken place when AliHMPIDParam::Instance() is invoked for the first time. | |
34 | // In particulare, matrices to be used for LORS<->MARS trasnformations are initialized from TGeo structure. | |
35 | // Note that TGeoManager should be already initialized from geometry.root file | |
36 | fX=0.5*AliHMPIDDigit::SizeAllX(); | |
37 | fY=0.5*AliHMPIDDigit::SizeAllY(); | |
97eadc2b | 38 | for(Int_t i=AliHMPIDDigit::kMinCh;i<=AliHMPIDDigit::kMaxCh;i++) |
39 | if(gGeoManager && gGeoManager->IsClosed()) { | |
40 | // fM[i]=(TGeoHMatrix*)gGeoManager->GetVolume("ALIC")->GetNode(Form("HMPID_%i",i))->GetMatrix(); // previous style | |
2df6b16e | 41 | TGeoPNEntry* pne = gGeoManager->GetAlignableEntry(Form("/HMPID/Chamber%i",i)); |
97eadc2b | 42 | if (!pne) { |
43 | AliErrorClass(Form("The symbolic volume %s does not correspond to any physical entry!",Form("HMPID_%i",i))); | |
44 | fM[i]=new TGeoHMatrix; | |
45 | IdealPosition(i,fM[i]); | |
46 | } else { | |
47 | TGeoPhysicalNode *pnode = pne->GetPhysicalNode(); | |
48 | fM[i]=pnode->GetMatrix(); | |
49 | } | |
50 | } else{ | |
1d4857c5 | 51 | fM[i]=new TGeoHMatrix; |
52 | IdealPosition(i,fM[i]); | |
53 | } | |
d3da6dc4 | 54 | fgInstance=this; |
55 | }//ctor | |
56 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
57 | void AliHMPIDParam::Print(Option_t* opt) const | |
58 | { | |
59 | // print some usefull (hopefully) info on some internal guts of HMPID parametrisation | |
60 | ||
61 | for(Int_t i=0;i<7;i++) fM[i]->Print(opt); | |
62 | }//Print() | |
63 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
1d4857c5 | 64 | void AliHMPIDParam::IdealPosition(Int_t iCh, TGeoHMatrix *pMatrix) |
65 | { | |
66 | // Construct ideal position matrix for a given chamber | |
67 | // Arguments: iCh- chamber ID; pMatrix- pointer to precreated unity matrix where to store the results | |
68 | // Returns: none | |
69 | const Double_t kAngHor=19.5; // horizontal angle between chambers 19.5 grad | |
70 | const Double_t kAngVer=20; // vertical angle between chambers 20 grad | |
71 | const Double_t kAngCom=30; // common HMPID rotation with respect to x axis 30 grad | |
72 | const Double_t trans[3]={490,0,0}; //center of the chamber is on window-gap surface | |
73 | pMatrix->RotateY(90); //rotate around y since initial position is in XY plane -> now in YZ plane | |
74 | pMatrix->SetTranslation(trans); //now plane in YZ is shifted along x | |
75 | switch(iCh){ | |
76 | case 0: pMatrix->RotateY(kAngHor); pMatrix->RotateZ(-kAngVer); break; //right and down | |
77 | case 1: pMatrix->RotateZ(-kAngVer); break; //down | |
78 | case 2: pMatrix->RotateY(kAngHor); break; //right | |
79 | case 3: break; //no rotation | |
80 | case 4: pMatrix->RotateY(-kAngHor); break; //left | |
81 | case 5: pMatrix->RotateZ(kAngVer); break; //up | |
82 | case 6: pMatrix->RotateY(-kAngHor); pMatrix->RotateZ(kAngVer); break; //left and up | |
83 | } | |
84 | pMatrix->RotateZ(kAngCom); //apply common rotation in XY plane | |
85 | ||
86 | } | |
87 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
d3da6dc4 | 88 | Int_t AliHMPIDParam::Stack(Int_t evt,Int_t tid) |
89 | { | |
d1bf51e1 | 90 | // Prints some useful info from stack |
d3da6dc4 | 91 | // Arguments: evt - event number. if not -1 print info only for that event |
92 | // tid - track id. if not -1 then print it and all it's mothers if any | |
93 | // Returns: mother tid of the given tid if any | |
94 | AliRunLoader *pAL=AliRunLoader::Open(); | |
95 | if(pAL->LoadHeader()) return -1; | |
96 | if(pAL->LoadKinematics()) return -1; | |
97 | ||
98 | Int_t mtid=-1; | |
cf7e313e | 99 | Int_t iNevt=pAL->GetNumberOfEvents(); |
d3da6dc4 | 100 | |
101 | for(Int_t iEvt=0;iEvt<iNevt;iEvt++){//events loop | |
102 | if(evt!=-1 && evt!=iEvt) continue; //in case one needs to print the requested event, ignore all others | |
103 | pAL->GetEvent(iEvt); | |
104 | AliStack *pStack=pAL->Stack(); | |
105 | if(tid==-1){ //print all tids for this event | |
106 | for(Int_t i=0;i<pStack->GetNtrack();i++) pStack->Particle(i)->Print(); | |
107 | Printf("totally %i tracks including %i primaries for event %i out of %i event(s)",pStack->GetNtrack(),pStack->GetNprimary(),iEvt,iNevt); | |
108 | }else{ //print only this tid and it;s mothers | |
109 | if(tid<0 || tid>pStack->GetNtrack()) {Printf("Wrong tid, valid tid range for event %i is 0-%i",iEvt,pStack->GetNtrack());break;} | |
110 | TParticle *pTrack=pStack->Particle(tid); mtid=pTrack->GetFirstMother(); | |
111 | TString str=pTrack->GetName(); | |
112 | while((tid=pTrack->GetFirstMother()) >= 0){ | |
113 | pTrack=pStack->Particle(tid); | |
114 | str+=" from ";str+=pTrack->GetName(); | |
115 | } | |
d3da6dc4 | 116 | }//if(tid==-1) |
117 | }//events loop | |
118 | pAL->UnloadHeader(); pAL->UnloadKinematics(); | |
119 | return mtid; | |
120 | } | |
121 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
122 | Int_t AliHMPIDParam::StackCount(Int_t pid,Int_t evt) | |
123 | { | |
124 | // Counts total number of particles of given sort (including secondary) for a given event | |
125 | AliRunLoader *pAL=AliRunLoader::Open(); | |
126 | pAL->GetEvent(evt); | |
127 | if(pAL->LoadHeader()) return 0; | |
128 | if(pAL->LoadKinematics()) return 0; | |
129 | AliStack *pStack=pAL->Stack(); | |
130 | ||
131 | Int_t iCnt=0; | |
132 | for(Int_t i=0;i<pStack->GetNtrack();i++) if(pStack->Particle(i)->GetPdgCode()==pid) iCnt++; | |
133 | ||
134 | pAL->UnloadHeader(); pAL->UnloadKinematics(); | |
135 | return iCnt; | |
136 | } | |
137 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |