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compilation warnings fixed
[u/mrichter/AliRoot.git] / HMPID / AliHMPIDDigit.h
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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 18class TClonesArray; //Hit2Sdi()
3c6274c1 19
d3da6dc4 20class AliHMPIDDigit :public AliDigit //TObject-AliDigit-AliHMPIDDigit
21{
22public:
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//
76fd1a96 43 inline Float_t Mathieson (Float_t x )const; //Mathieson distribution
44 inline Float_t IntPartMathi(Float_t z, Int_t axis )const; //integral in 1-dim of Mathieson
45 inline Float_t IntMathieson(Float_t x,Float_t y )const; //integral in 2-dim of Mathieson
ae5a42aa 46 Int_t PadPcX ( )const{return AliHMPIDParam::A2X(fPad);} //pad pc x # 0..79
47 Int_t PadPcY ( )const{return AliHMPIDParam::A2Y(fPad);} //pad pc y # 0..47
48 Int_t PadChX ( )const{return (Pc()%2)*AliHMPIDParam::kPadPcX+PadPcX();} //pad ch x # 0..159
49 Int_t PadChY ( )const{return (Pc()/2)*AliHMPIDParam::kPadPcY+PadPcY();} //pad ch y # 0..143
d3da6dc4 50 Int_t Pad ( )const{return fPad;} //absolute id of this pad
ae5a42aa 51 Int_t Pc ( )const{return AliHMPIDParam::A2P(fPad);} //PC position number
da08475b 52 Float_t Q ( )const{return fQ;} //charge, [QDC]
1d4857c5 53 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 54 inline Bool_t Raw (UInt_t w32,Int_t ddl,AliRawReader *pRR); //(w32,ddl)->digit
a0e5c1b9 55 inline void Raw (Int_t ddl,Int_t r,Int_t d,Int_t a); //raw->abs pad number
f3bae3e2 56 inline Bool_t Set (Int_t c,Int_t p,Int_t x,Int_t y,Int_t tid=0); //manual creation
57 void SetQ (Float_t q ) {fQ=q;} //manual creation
ae5a42aa 58 void SetNsig (Int_t sigmas ) {AliHMPIDParam::fgSigmas=sigmas;} //set n sigmas
1d4857c5 59 static void WriteRaw (TObjArray *pDigLst ); //write as raw stream
49dfd67a 60 enum EHMPIDRawError {
61 kInvalidRawDataWord = 1
62 };
ae5a42aa 63
c5c19d6a 64protected: //AliDigit has fTracks[3]
ae5a42aa 65
66
1b10372c 67 Int_t fPad; //absolute pad number
c5c19d6a 68 Float_t fQ; //QDC value, fractions are permitted for summable procedure
69 ClassDef(AliHMPIDDigit,4) //HMPID digit class
70};//class AliHMPIDDigit
cf7e313e 71
d3da6dc4 72//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ae5a42aa 73
d3da6dc4 74Int_t AliHMPIDDigit::Compare(const TObject *pObj) const
75{
76// 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.
77// This feature is used in digitizer to facilitate finding of sdigits for the same pad since they all will come together after sorting.
78// Arguments: pObj - pointer to object to compare with
79// Retunrs: -1 if AbsPad less then in pObj, 1 if more and 0 if they are the same
80 if (fPad==((AliHMPIDDigit*)pObj)->Pad()) return 0;
81 else if(fPad >((AliHMPIDDigit*)pObj)->Pad()) return 1;
da08475b 82 else return -1;
d3da6dc4 83}
84//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ae5a42aa 85
76fd1a96 86Float_t AliHMPIDDigit::Mathieson(Float_t x)const
87{
88// Mathieson function.
89// This is the answer to electrostatic problem of charge distrubution in MWPC described elsewhere. (NIM A370(1988)602-603)
90// Arguments: x- position of the center of Mathieson distribution
91// Returns: value of the Mathieson function
92 Float_t kK1=0.28278795,kK2=0.96242952, kSqrtK3 =0.77459667, kD=0.445;
93 Float_t lambda = x/kD;
94 Float_t a=1-TMath::TanH(kK2*lambda)*TMath::TanH(kK2*lambda);
95 Float_t b=1+kSqrtK3*kSqrtK3*TMath::TanH(kK2*lambda)*TMath::TanH(kK2*lambda);
96 Float_t mathi = kK1*a/b;
97 return mathi;
98}
99//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
100
101Float_t AliHMPIDDigit::IntPartMathi(Float_t z, Int_t axis)const
102{
103// Integration of Mathieson.
104// This is the answer to electrostatic problem of charge distrubution in MWPC described elsewhere. (NIM A370(1988)602-603)
105// Arguments: x,y- position of the center of Mathieson distribution
106// Returns: a charge fraction [0-1] imposed into the pad
107 Float_t shift1,shift2;
108 if(axis==1) {
109 shift1 = -LorsX()+0.5*AliHMPIDParam::SizePadX();
110 shift2 = -LorsX()-0.5*AliHMPIDParam::SizePadX();
111 } else {
112 shift1 = -LorsY()+0.5*AliHMPIDParam::SizePadY();
113 shift2 = -LorsY()-0.5*AliHMPIDParam::SizePadY();
114 }
115
116 Float_t kK2=0.96242952, kSqrtK3 =0.77459667, kK4=0.37932926, kD=0.445;
117
118 Float_t ux1=kSqrtK3*TMath::TanH(kK2*(z+shift1)/kD);
119 Float_t ux2=kSqrtK3*TMath::TanH(kK2*(z+shift2)/kD);
120
121 return kK4*(TMath::ATan(ux2)-TMath::ATan(ux1));
122}
123//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
124
c5c19d6a 125Float_t AliHMPIDDigit::IntMathieson(Float_t x,Float_t y)const
d3da6dc4 126{
c5c19d6a 127// Integration of Mathieson.
d3da6dc4 128// This is the answer to electrostatic problem of charge distrubution in MWPC described elsewhere. (NIM A370(1988)602-603)
129// Arguments: x,y- position of the center of Mathieson distribution
130// Returns: a charge fraction [0-1] imposed into the pad
d3da6dc4 131
76fd1a96 132 Float_t xm = IntPartMathi(x,1);
133 Float_t ym = IntPartMathi(y,2);
134 return 4*xm*ym;
d3da6dc4 135}
136//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1d4857c5 137void AliHMPIDDigit::Raw(UInt_t &w32,Int_t &ddl,Int_t &r,Int_t &d,Int_t &a)const
d3da6dc4 138{
139// Convert digit structure to raw word format
1d4857c5 140// Arguments: w32,ddl,r,d,a where to write the results
141// Returns: none
142 Int_t y2a[6]={5,3,1,0,2,4};
143
144 ddl=2*Ch()+Pc()%2; //DDL# 0..13
145 Int_t tmp=1+Pc()/2*8+PadPcY()/6; r=(Pc()%2)? 25-tmp:tmp; //row r=1..24
146 d=1+PadPcX()/8; //DILOGIC# 1..10
147 a=y2a[PadPcY()%6]+6*(PadPcX()%8); //ADDRESS 0..47
148
149 w32=0;
d4522894 150 //Protection for charge > 4095
151 AliBitPacking::PackWord((fQ>4095)?4095:(UInt_t)fQ,w32,0,11); // 0000 0rrr rrdd ddaa aaaa qqqq qqqq qqqq Qdc bits (00..11) counts (0..4095)
152 AliBitPacking::PackWord( a ,w32,12,17); // 3322 2222 2222 1111 1111 1000 0000 0000 DILOGIC address bits (12..17) counts (0..47)
153 AliBitPacking::PackWord( d ,w32,18,21); // 1098 7654 3210 9876 5432 1098 7654 3210 DILOGIC number bits (18..21) counts (1..10)
154 AliBitPacking::PackWord( r ,w32,22,26); // Row number bits (22..26) counts (1..24)
d3da6dc4 155}
156//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
49dfd67a 157Bool_t AliHMPIDDigit::Raw(UInt_t w32,Int_t ddl, AliRawReader *pRR)
d3da6dc4 158{
159// Converts a given raw data word to a digit
160// Arguments: w32 - 32 bits raw data word
161// ddl - DDL idx 0 1 2 3 4 ... 13
162// Returns: none
1d4857c5 163 Int_t r = AliBitPacking::UnpackWord(w32,22,26); assert(1<=r&&r<=24); // Row number (1..24)
164 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)
165 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 166 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 167 if (r<1 || r>24 || d<1 || d>10 || a<0 || a>47 || q<0 || q>4095) {
168 AliWarning(Form("Invalid raw data word %x",w32));
169 pRR->AddMajorErrorLog(kInvalidRawDataWord,Form("w=%x",w32));
170 return kFALSE;
171 }
a0e5c1b9 172 Raw(ddl,r,d,a);
173 fQ=q;
49dfd67a 174 return kTRUE;
a0e5c1b9 175}
176//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
177void AliHMPIDDigit::Raw(Int_t ddl,Int_t r,Int_t d,Int_t a)
178{
56d2de52 179 assert(0<=ddl&&ddl<=13); assert(1<=r&&r<=24); assert(1<=d&&d<=10); assert(0<=a&&a<=47);
a0e5c1b9 180 Int_t a2y[6]={3,2,4,1,5,0};//pady for a given address (for single DILOGIC chip)
1d4857c5 181 Int_t ch=ddl/2;
182 Int_t tmp=(r-1)/8; Int_t pc=(ddl%2)? 5-2*tmp:2*tmp;
183 Int_t px=(d-1)*8+a/6;
184 tmp=(ddl%2)?(24-r):r-1; Int_t py=6*(tmp%8)+a2y[a%6];
ae5a42aa 185 fPad=AliHMPIDParam::Abs(ch,pc,px,py);
d3da6dc4 186}
a0e5c1b9 187
188
d3da6dc4 189//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
f3bae3e2 190Bool_t AliHMPIDDigit::Set(Int_t ch,Int_t pc,Int_t px,Int_t py,Int_t tid)
1d4857c5 191{
192// Manual creation of digit
193// Arguments: ch,pc,px,py,qdc,tid
f3bae3e2 194// Returns: kTRUE if wrong digit
ae5a42aa 195 if(px<AliHMPIDParam::kMinPx || px>AliHMPIDParam::kMaxPx) return kTRUE;
196 if(py<AliHMPIDParam::kMinPy || py>AliHMPIDParam::kMaxPy) return kTRUE;
1d4857c5 197
ae5a42aa 198 fPad=AliHMPIDParam::Abs(ch,pc,px,py);fTracks[0]=tid;
f3bae3e2 199 fQ=0;
1d4857c5 200 return kFALSE;
201}
d3da6dc4 202#endif