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d3da6dc4 | 1 | #ifndef AliHMPIDDigit_h |
2 | #define AliHMPIDDigit_h | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
ea925242 | 6 | // Class of HMPID to manage digits ---> pads |
1b10372c | 7 | //. |
8 | //. | |
9 | //. | |
ea925242 | 10 | |
d3da6dc4 | 11 | #include <AliDigit.h> //base class |
49dfd67a | 12 | #include <AliRawReader.h> |
13 | #include <AliLog.h> | |
ea925242 | 14 | #include "TMath.h" //Mathieson() |
d3da6dc4 | 15 | #include <AliBitPacking.h> //Raw() |
ae5a42aa | 16 | #include "AliHMPIDParam.h" |
d3da6dc4 | 17 | |
d3da6dc4 | 18 | class TClonesArray; //Hit2Sdi() |
3c6274c1 | 19 | |
d3da6dc4 | 20 | class AliHMPIDDigit :public AliDigit //TObject-AliDigit-AliHMPIDDigit |
21 | { | |
22 | public: | |
ae5a42aa | 23 | |
d3da6dc4 | 24 | //ctor&dtor |
ae5a42aa | 25 | AliHMPIDDigit( ):AliDigit( ),fPad(AliHMPIDParam::Abs(-1,-1,-1,-1)),fQ(-1) {} //default ctor |
1d4857c5 | 26 | AliHMPIDDigit(Int_t pad,Int_t q,Int_t *t):AliDigit(t),fPad(pad ),fQ(q ) {} //digit ctor |
27 | AliHMPIDDigit(const AliHMPIDDigit &d ):AliDigit(d),fPad(d.fPad),fQ(d.fQ) {} //copy ctor | |
28 | virtual ~AliHMPIDDigit() {} //dtor | |
d3da6dc4 | 29 | //framework part |
30 | Bool_t IsSortable ( )const{return kTRUE;} //provision to use TObject::Sort() | |
31 | inline Int_t Compare (const TObject *pObj )const; //provision to use TObject::Sort() | |
d1bf51e1 | 32 | void Draw (Option_t *opt="" ); //TObject::Draw() overloaded |
d3da6dc4 | 33 | void Print (Option_t *opt="" )const; //TObject::Print() overloaded |
34 | //private part | |
ae5a42aa | 35 | |
1d4857c5 | 36 | void AddTidOffset(Int_t offset ) {for (Int_t i=0; i<3; i++) if (fTracks[i]>0) fTracks[i]+=offset; } //needed for merging |
ae5a42aa | 37 | Int_t Ch ( )const{return AliHMPIDParam::A2C(fPad); } //chamber number |
38 | ||
39 | Float_t LorsX ( )const{return AliHMPIDParam::LorsX(AliHMPIDParam::A2P(fPad),AliHMPIDParam::A2X(fPad)); } //center of the pad x, [cm] | |
40 | ||
41 | Float_t LorsY ( )const{return AliHMPIDParam::LorsY(AliHMPIDParam::A2P(fPad),AliHMPIDParam::A2Y(fPad)); } //center of the pad y, [cm] | |
42 | // | |
c5c19d6a | 43 | inline Float_t IntMathieson(Float_t x,Float_t y )const; //Mathieson distribution |
ae5a42aa | 44 | Int_t PadPcX ( )const{return AliHMPIDParam::A2X(fPad);} //pad pc x # 0..79 |
45 | Int_t PadPcY ( )const{return AliHMPIDParam::A2Y(fPad);} //pad pc y # 0..47 | |
46 | Int_t PadChX ( )const{return (Pc()%2)*AliHMPIDParam::kPadPcX+PadPcX();} //pad ch x # 0..159 | |
47 | Int_t PadChY ( )const{return (Pc()/2)*AliHMPIDParam::kPadPcY+PadPcY();} //pad ch y # 0..143 | |
d3da6dc4 | 48 | Int_t Pad ( )const{return fPad;} //absolute id of this pad |
ae5a42aa | 49 | Int_t Pc ( )const{return AliHMPIDParam::A2P(fPad);} //PC position number |
da08475b | 50 | Float_t Q ( )const{return fQ;} //charge, [QDC] |
1d4857c5 | 51 | inline void Raw (UInt_t &w32,Int_t &ddl,Int_t &r,Int_t &d,Int_t &a)const; //digit->(w32,ddl,r,d,a) |
49dfd67a | 52 | inline Bool_t Raw (UInt_t w32,Int_t ddl,AliRawReader *pRR); //(w32,ddl)->digit |
a0e5c1b9 | 53 | inline void Raw (Int_t ddl,Int_t r,Int_t d,Int_t a); //raw->abs pad number |
f3bae3e2 | 54 | inline Bool_t Set (Int_t c,Int_t p,Int_t x,Int_t y,Int_t tid=0); //manual creation |
55 | void SetQ (Float_t q ) {fQ=q;} //manual creation | |
ae5a42aa | 56 | void SetNsig (Int_t sigmas ) {AliHMPIDParam::fgSigmas=sigmas;} //set n sigmas |
1d4857c5 | 57 | static void WriteRaw (TObjArray *pDigLst ); //write as raw stream |
49dfd67a | 58 | enum EHMPIDRawError { |
59 | kInvalidRawDataWord = 1 | |
60 | }; | |
ae5a42aa | 61 | |
c5c19d6a | 62 | protected: //AliDigit has fTracks[3] |
ae5a42aa | 63 | |
64 | ||
1b10372c | 65 | Int_t fPad; //absolute pad number |
c5c19d6a | 66 | Float_t fQ; //QDC value, fractions are permitted for summable procedure |
67 | ClassDef(AliHMPIDDigit,4) //HMPID digit class | |
68 | };//class AliHMPIDDigit | |
cf7e313e | 69 | |
d3da6dc4 | 70 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
ae5a42aa | 71 | |
d3da6dc4 | 72 | Int_t AliHMPIDDigit::Compare(const TObject *pObj) const |
73 | { | |
74 | // Used in Sort() method to compare to objects. Note that abs pad structure is first x then y, hence will be sorted on column basis. | |
75 | // This feature is used in digitizer to facilitate finding of sdigits for the same pad since they all will come together after sorting. | |
76 | // Arguments: pObj - pointer to object to compare with | |
77 | // Retunrs: -1 if AbsPad less then in pObj, 1 if more and 0 if they are the same | |
78 | if (fPad==((AliHMPIDDigit*)pObj)->Pad()) return 0; | |
79 | else if(fPad >((AliHMPIDDigit*)pObj)->Pad()) return 1; | |
da08475b | 80 | else return -1; |
d3da6dc4 | 81 | } |
82 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
ae5a42aa | 83 | |
c5c19d6a | 84 | Float_t AliHMPIDDigit::IntMathieson(Float_t x,Float_t y)const |
d3da6dc4 | 85 | { |
c5c19d6a | 86 | // Integration of Mathieson. |
d3da6dc4 | 87 | // This is the answer to electrostatic problem of charge distrubution in MWPC described elsewhere. (NIM A370(1988)602-603) |
88 | // Arguments: x,y- position of the center of Mathieson distribution | |
89 | // Returns: a charge fraction [0-1] imposed into the pad | |
0112d781 | 90 | Float_t kK2=0.96242952, kSqrtK3 =0.77459667, kK4=0.37932926; |
d3da6dc4 | 91 | |
ae5a42aa | 92 | Float_t ux1=kSqrtK3*TMath::TanH(kK2*(x-LorsX()+0.5*AliHMPIDParam::SizePadX())/0.445); |
93 | Float_t ux2=kSqrtK3*TMath::TanH(kK2*(x-LorsX()-0.5*AliHMPIDParam::SizePadX())/0.445); | |
94 | Float_t uy1=kSqrtK3*TMath::TanH(kK2*(y-LorsY()+0.5*AliHMPIDParam::SizePadY())/0.445); | |
95 | Float_t uy2=kSqrtK3*TMath::TanH(kK2*(y-LorsY()-0.5*AliHMPIDParam::SizePadY())/0.445); | |
0112d781 | 96 | return 4*kK4*(TMath::ATan(ux2)-TMath::ATan(ux1))*kK4*(TMath::ATan(uy2)-TMath::ATan(uy1)); |
d3da6dc4 | 97 | } |
98 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
1d4857c5 | 99 | void AliHMPIDDigit::Raw(UInt_t &w32,Int_t &ddl,Int_t &r,Int_t &d,Int_t &a)const |
d3da6dc4 | 100 | { |
101 | // Convert digit structure to raw word format | |
1d4857c5 | 102 | // Arguments: w32,ddl,r,d,a where to write the results |
103 | // Returns: none | |
104 | Int_t y2a[6]={5,3,1,0,2,4}; | |
105 | ||
106 | ddl=2*Ch()+Pc()%2; //DDL# 0..13 | |
107 | Int_t tmp=1+Pc()/2*8+PadPcY()/6; r=(Pc()%2)? 25-tmp:tmp; //row r=1..24 | |
108 | d=1+PadPcX()/8; //DILOGIC# 1..10 | |
109 | a=y2a[PadPcY()%6]+6*(PadPcX()%8); //ADDRESS 0..47 | |
110 | ||
111 | w32=0; | |
112 | AliBitPacking::PackWord((UInt_t)fQ,w32, 0,11); // 0000 0rrr rrdd ddaa aaaa qqqq qqqq qqqq Qdc bits (00..11) counts (0..4095) | |
113 | AliBitPacking::PackWord( a ,w32,12,17); // 3322 2222 2222 1111 1111 1000 0000 0000 DILOGIC address bits (12..17) counts (0..47) | |
114 | AliBitPacking::PackWord( d ,w32,18,21); // 1098 7654 3210 9876 5432 1098 7654 3210 DILOGIC number bits (18..21) counts (1..10) | |
115 | AliBitPacking::PackWord( r ,w32,22,26); // Row number bits (22..26) counts (1..24) | |
d3da6dc4 | 116 | } |
117 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
49dfd67a | 118 | Bool_t AliHMPIDDigit::Raw(UInt_t w32,Int_t ddl, AliRawReader *pRR) |
d3da6dc4 | 119 | { |
120 | // Converts a given raw data word to a digit | |
121 | // Arguments: w32 - 32 bits raw data word | |
122 | // ddl - DDL idx 0 1 2 3 4 ... 13 | |
123 | // Returns: none | |
1d4857c5 | 124 | Int_t r = AliBitPacking::UnpackWord(w32,22,26); assert(1<=r&&r<=24); // Row number (1..24) |
125 | Int_t d = AliBitPacking::UnpackWord(w32,18,21); assert(1<=d&&d<=10); // 3322 2222 2222 1111 1111 1000 0000 0000 DILOGIC number (1..10) | |
126 | Int_t a = AliBitPacking::UnpackWord(w32,12,17); assert(0<=a&&a<=47); // 1098 7654 3210 9876 5432 1098 7654 3210 DILOGIC address (0..47) | |
a0e5c1b9 | 127 | Int_t q = AliBitPacking::UnpackWord(w32, 0,11); assert(0<=q&&q<=4095); // 0000 0rrr rrdd ddaa aaaa qqqq qqqq qqqq Qdc (0..4095) |
49dfd67a | 128 | if (r<1 || r>24 || d<1 || d>10 || a<0 || a>47 || q<0 || q>4095) { |
129 | AliWarning(Form("Invalid raw data word %x",w32)); | |
130 | pRR->AddMajorErrorLog(kInvalidRawDataWord,Form("w=%x",w32)); | |
131 | return kFALSE; | |
132 | } | |
a0e5c1b9 | 133 | Raw(ddl,r,d,a); |
134 | fQ=q; | |
49dfd67a | 135 | return kTRUE; |
a0e5c1b9 | 136 | } |
137 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
138 | void AliHMPIDDigit::Raw(Int_t ddl,Int_t r,Int_t d,Int_t a) | |
139 | { | |
56d2de52 | 140 | assert(0<=ddl&&ddl<=13); assert(1<=r&&r<=24); assert(1<=d&&d<=10); assert(0<=a&&a<=47); |
a0e5c1b9 | 141 | Int_t a2y[6]={3,2,4,1,5,0};//pady for a given address (for single DILOGIC chip) |
1d4857c5 | 142 | Int_t ch=ddl/2; |
143 | Int_t tmp=(r-1)/8; Int_t pc=(ddl%2)? 5-2*tmp:2*tmp; | |
144 | Int_t px=(d-1)*8+a/6; | |
145 | tmp=(ddl%2)?(24-r):r-1; Int_t py=6*(tmp%8)+a2y[a%6]; | |
ae5a42aa | 146 | fPad=AliHMPIDParam::Abs(ch,pc,px,py); |
d3da6dc4 | 147 | } |
a0e5c1b9 | 148 | |
149 | ||
d3da6dc4 | 150 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
f3bae3e2 | 151 | Bool_t AliHMPIDDigit::Set(Int_t ch,Int_t pc,Int_t px,Int_t py,Int_t tid) |
1d4857c5 | 152 | { |
153 | // Manual creation of digit | |
154 | // Arguments: ch,pc,px,py,qdc,tid | |
f3bae3e2 | 155 | // Returns: kTRUE if wrong digit |
ae5a42aa | 156 | if(px<AliHMPIDParam::kMinPx || px>AliHMPIDParam::kMaxPx) return kTRUE; |
157 | if(py<AliHMPIDParam::kMinPy || py>AliHMPIDParam::kMaxPy) return kTRUE; | |
1d4857c5 | 158 | |
ae5a42aa | 159 | fPad=AliHMPIDParam::Abs(ch,pc,px,py);fTracks[0]=tid; |
f3bae3e2 | 160 | fQ=0; |
1d4857c5 | 161 | return kFALSE; |
162 | } | |
d3da6dc4 | 163 | #endif |