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d3da6dc4 | 1 | #ifndef AliHMPIDParam_h |
2 | #define AliHMPIDParam_h | |
3010c308 | 3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
4 | * See cxx source for full Copyright notice */ | |
d3da6dc4 | 5 | |
3010c308 | 6 | /* $Id$ */ |
7 | ||
8 | #include <TMath.h> | |
d3da6dc4 | 9 | #include <TNamed.h> //base class |
10 | #include <TGeoManager.h> //Instance() | |
11 | #include <TVector3.h> //Lors2Mars() Mars2Lors() | |
12 | ||
13 | static const int kCerenkov=50000050; //??? go to something more general like TPDGCode | |
14 | static const int kFeedback=50000051; //??? go to something more general like TPDGCode | |
15 | ||
16 | // Class providing all the needed parametrised information | |
17 | // to construct the geometry, to define segmentation and to provide response model | |
18 | // In future will also provide all the staff needed for alignment and calibration | |
19 | ||
20 | class AliHMPIDParam :public TNamed | |
21 | { | |
22 | public: | |
23 | //ctor&dtor | |
24 | virtual ~AliHMPIDParam() {for(Int_t i=0;i<7;i++) delete fM[i]; delete fgInstance; fgInstance=0;} | |
25 | void Print(Option_t *opt="") const; //print current parametrization | |
26 | static inline AliHMPIDParam* Instance(); //pointer to AliHMPIDParam singleton | |
27 | ||
28 | Double_t MeanIdxRad () {return 1.29204;}//??????????? | |
29 | Double_t MeanIdxWin () {return 1.57819;}//??????????? | |
30 | static Int_t Stack(Int_t evt=-1,Int_t tid=-1); //Print stack info for event and tid | |
31 | static Int_t StackCount(Int_t pid,Int_t evt); //Counts stack particles of given sort in given event | |
32 | //trasformation methodes | |
33 | void Lors2Mars (Int_t c,Float_t x,Float_t y,Double_t *m,Int_t pl=kPc)const{Double_t z=0; switch(pl){case kPc:z=8.0;break; case kAnod:z=7.806;break; case kRad:z=-1.25; break;} Double_t l[3]={x-fX,y-fY,z}; fM[c]->LocalToMaster(l,m); } | |
34 | TVector3 Lors2Mars (Int_t c,Float_t x,Float_t y, Int_t pl=kPc)const{Double_t m[3];Lors2Mars(c,x,y,m,pl); return TVector3(m); }//MRS->LRS | |
35 | void Mars2Lors (Int_t c,Double_t *m,Float_t &x,Float_t &y )const{Double_t l[3];fM[c]->MasterToLocal(m,l);x=l[0]+fX;y=l[1]+fY;}//MRS->LRS | |
36 | void Mars2LorsVec(Int_t c,Double_t *m,Float_t &th,Float_t &ph )const{Double_t l[3]; fM[c]->MasterToLocalVect(m,l); Float_t pt=TMath::Sqrt(l[0]*l[0]+l[1]*l[1]); th=TMath::ATan(l[3]/pt); ph=TMath::ATan(l[0]/pt);} | |
37 | TVector3 Norm (Int_t c )const{Double_t n[3]; Norm(c,n); return TVector3(n); }//norm | |
38 | void Norm (Int_t c,Double_t *n )const{Double_t l[3]={0,0,1};fM[c]->LocalToMasterVect(l,n); }//norm | |
39 | ||
40 | enum EPlaneId {kPc,kRad,kAnod}; //3 planes in chamber | |
41 | protected: | |
42 | AliHMPIDParam(); //default ctor is protected to enforce it to be singleton | |
43 | static AliHMPIDParam *fgInstance; //static pointer to instance of AliHMPIDParam singleton | |
44 | TGeoHMatrix *fM[7]; //poiners to matrices defining HMPID chambers rotations-translations | |
45 | Float_t fX; //x shift of LORS with respect to rotated MARS | |
46 | Float_t fY; //y shift of LORS with respect to rotated MARS | |
47 | ClassDef(AliHMPIDParam,0) //HMPID main parameters class | |
48 | }; | |
cf7e313e | 49 | |
50 | typedef AliHMPIDParam AliRICHParam; // for backward compatibility | |
51 | ||
d3da6dc4 | 52 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
53 | AliHMPIDParam* AliHMPIDParam::Instance() | |
54 | { | |
55 | // Return pointer to the AliHMPIDParam singleton. | |
56 | // Arguments: none | |
57 | // Returns: pointer to the instance of AliHMPIDParam or 0 if no geometry | |
58 | if(!fgInstance) | |
59 | if(gGeoManager) new AliHMPIDParam; | |
60 | else Printf("AliHMPIDParam> Error:: No geometry defined!"); | |
61 | return fgInstance; | |
62 | }//Instance() | |
63 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
64 | ||
65 | #endif |