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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 | ||
6 | #include <AliDigit.h> //base class | |
7 | #include <TMath.h> //Mathieson() | |
8 | #include <TRandom.h> //IsOverTh() | |
9 | #include <AliBitPacking.h> //Raw() | |
1d4857c5 | 10 | |
d3da6dc4 | 11 | |
d3da6dc4 | 12 | class TClonesArray; //Hit2Sdi() |
3c6274c1 | 13 | |
d3da6dc4 | 14 | class AliHMPIDDigit :public AliDigit //TObject-AliDigit-AliHMPIDDigit |
15 | { | |
16 | public: | |
a1d55ff3 | 17 | enum EChamberData{kMinCh=0,kMaxCh=6,kMinPc=0,kMaxPc=5}; //Segmenation |
18 | enum EPadxData{kPadPcX=80,kMinPx=0,kMaxPx=79,kMaxPcx=159}; //Segmentation structure along x | |
19 | enum EPadyData{kPadPcY=48,kMinPy=0,kMaxPy=47,kMaxPcy=143}; //Segmentation structure along y | |
d3da6dc4 | 20 | //ctor&dtor |
1d4857c5 | 21 | AliHMPIDDigit( ):AliDigit( ),fPad(Abs(-1,-1,-1,-1)),fQ(-1) {} //default ctor |
22 | AliHMPIDDigit(Int_t pad,Int_t q,Int_t *t):AliDigit(t),fPad(pad ),fQ(q ) {} //digit ctor | |
23 | AliHMPIDDigit(const AliHMPIDDigit &d ):AliDigit(d),fPad(d.fPad),fQ(d.fQ) {} //copy ctor | |
24 | virtual ~AliHMPIDDigit() {} //dtor | |
d3da6dc4 | 25 | //framework part |
26 | Bool_t IsSortable ( )const{return kTRUE;} //provision to use TObject::Sort() | |
27 | inline Int_t Compare (const TObject *pObj )const; //provision to use TObject::Sort() | |
d1bf51e1 | 28 | void Draw (Option_t *opt="" ); //TObject::Draw() overloaded |
d3da6dc4 | 29 | void Print (Option_t *opt="" )const; //TObject::Print() overloaded |
30 | //private part | |
1d4857c5 | 31 | static Int_t Abs (Int_t c,Int_t s,Int_t x,Int_t y) {return c*100000000+s*1000000+x*1000+y; } //(ch,pc,padx,pady)-> abs pad |
32 | static Int_t A2C (Int_t pad ) {return pad/100000000; } //abs pad -> chamber | |
33 | static Int_t A2P (Int_t pad ) {return pad%100000000/1000000; } //abs pad -> pc | |
34 | static Int_t A2X (Int_t pad ) {return pad%1000000/1000; } //abs pad -> pad X | |
35 | static Int_t A2Y (Int_t pad ) {return pad%1000; } //abs pad -> pad Y | |
36 | void AddTidOffset(Int_t offset ) {for (Int_t i=0; i<3; i++) if (fTracks[i]>0) fTracks[i]+=offset; } //needed for merging | |
37 | Int_t Ch ( )const{return A2C(fPad); } //chamber number | |
38 | static Bool_t IsOverTh (Float_t q ) {return q >= 4; } //is digit over threshold???? | |
39 | static Bool_t IsInside (Float_t x,Float_t y ) {return x>0&&y>0&&x<SizeAllX()&&y<SizeAllY(); } //is point inside chamber boundary? | |
40 | Float_t LorsX ( )const{return LorsX(A2P(fPad),A2X(fPad)); } //center of the pad x, [cm] | |
d1bf51e1 | 41 | static Float_t LorsX (Int_t pc,Int_t padx ) {return (padx +0.5)*SizePadX()+(pc %2)*(SizePcX()+SizeDead());} //center of the pad x, [cm] |
1d4857c5 | 42 | Float_t LorsY ( )const{return LorsY(A2P(fPad),A2Y(fPad)); } //center of the pad y, [cm] |
d1bf51e1 | 43 | static Float_t LorsY (Int_t pc,Int_t pady ) {return (pady +0.5)*SizePadY()+(pc /2)*(SizePcY()+SizeDead());} //center of the pad y, [cm] |
d3da6dc4 | 44 | inline Float_t Mathieson (Float_t x,Float_t y )const; //Mathieson distribution |
3c6274c1 | 45 | Int_t PadPcX ( )const{return A2X(fPad);} //pad pc x # 0..79 |
46 | Int_t PadPcY ( )const{return A2Y(fPad);} //pad pc y # 0..47 | |
47 | Int_t PadChX ( )const{return (Pc()%2)*kPadPcX+PadPcX();} //pad ch x # 0..159 | |
48 | Int_t PadChY ( )const{return (Pc()/2)*kPadPcY+PadPcY();} //pad ch y # 0..143 | |
d3da6dc4 | 49 | Int_t Pad ( )const{return fPad;} //absolute id of this pad |
d3da6dc4 | 50 | Int_t Pc ( )const{return A2P(fPad);} //PC position number |
da08475b | 51 | Float_t Q ( )const{return fQ;} //charge, [QDC] |
1d4857c5 | 52 | 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) |
53 | inline void Raw (UInt_t w32,Int_t ddl ); //(w32,ddl)->digit | |
54 | inline Bool_t Set (Int_t c,Int_t p,Int_t x,Int_t y,Float_t q=0,Int_t tid=0); //manual creation | |
55 | static void WriteRaw (TObjArray *pDigLst ); //write as raw stream | |
d3da6dc4 | 56 | |
1d4857c5 | 57 | static Float_t SizeAllX ( ) {return fMaxPcX[5];} //all PCs size x, [cm] |
58 | static Float_t SizeAllY ( ) {return fMaxPcY[5];} //all PCs size y, [cm] | |
59 | static Float_t SizeArea ( ) {return SizePcX()*SizePcY()*(kMaxPc-kMinPc+1);} //sence area, [cm^2] | |
d3da6dc4 | 60 | static Float_t SizeDead ( ) {return 2.6;} //dead zone size x, [cm] |
61 | static Float_t SizeGap ( ) {return 8; } | |
62 | static Float_t SizePadX ( ) {return 0.8;} //pad size x, [cm] | |
63 | static Float_t SizePadY ( ) {return 0.84;} //pad size y, [cm] | |
1d4857c5 | 64 | static Float_t SizePcX ( ) {return fMaxPcX[0];} //PC size x, [cm] |
65 | static Float_t SizePcY ( ) {return fMaxPcY[0];} //PC size y, [cm] | |
da08475b | 66 | static Float_t SizeWin ( ) {return 0.5;} //Quartz window width |
67 | static Float_t SizeRad ( ) {return 1.5;} //Rad width | |
d1bf51e1 | 68 | static const Float_t fMinPcX[6]; |
69 | static const Float_t fMinPcY[6]; | |
70 | static const Float_t fMaxPcX[6]; | |
71 | static const Float_t fMaxPcY[6]; | |
72 | ||
1d4857c5 | 73 | inline static Bool_t IsInDead(Float_t x,Float_t y ); //is point in dead area? |
74 | inline static void Lors2Pad(Float_t x,Float_t y,Int_t &pc,Int_t &px,Int_t &py); //(x,y)->(pc,px,py) | |
d1bf51e1 | 75 | |
d3da6dc4 | 76 | protected: //AliDigit has fTracks[3] |
3c6274c1 | 77 | Int_t fPad; //absolute pad number |
da08475b | 78 | Float_t fQ; //QDC value, fractions are permitted for summable procedure |
d3da6dc4 | 79 | ClassDef(AliHMPIDDigit,4) //HMPID digit class |
80 | };//class AliHMPIDDigitN | |
cf7e313e | 81 | |
82 | typedef AliHMPIDDigit AliRICHDigit; // for backward compatibility | |
83 | ||
d3da6dc4 | 84 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
1d4857c5 | 85 | void AliHMPIDDigit::Lors2Pad(Float_t x,Float_t y,Int_t &pc,Int_t &px,Int_t &py) |
d3da6dc4 | 86 | { |
1d4857c5 | 87 | // Check the pad of given position |
88 | // Arguments: x,y- position [cm] in LORS; pc,px,py- pad where to store the result | |
89 | // Returns: none | |
90 | pc=px=py=-1; | |
3c6274c1 | 91 | if (x>= 0 && x<= SizePcX() ) {pc=0; px=Int_t( x / SizePadX());}//PC 0 or 2 or 4 |
92 | else if(x>=SizePcX()+SizeDead() && x<= SizeAllX() ) {pc=1; px=Int_t((x- SizePcX()- SizeDead()) / SizePadX());}//PC 2 or 4 or 6 | |
1d4857c5 | 93 | else return; |
3c6274c1 | 94 | if (y>= 0 && y<= SizePcY() ) { py=Int_t( y / SizePadY());}//PC 0 or 1 |
95 | else if(y>=SizePcY()+SizeDead() && y<=2*SizePcY()+SizeDead() ) {pc+=2;py=Int_t((y- SizePcY()- SizeDead()) / SizePadY());}//PC 2 or 3 | |
96 | else if(y>=SizeAllY()-SizePcY() && y<= SizeAllY() ) {pc+=4;py=Int_t((y-2*SizePcY()-2*SizeDead()) / SizePadY());}//PC 4 or 5 | |
1d4857c5 | 97 | else return; |
98 | } | |
d3da6dc4 | 99 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
100 | Int_t AliHMPIDDigit::Compare(const TObject *pObj) const | |
101 | { | |
102 | // 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. | |
103 | // This feature is used in digitizer to facilitate finding of sdigits for the same pad since they all will come together after sorting. | |
104 | // Arguments: pObj - pointer to object to compare with | |
105 | // Retunrs: -1 if AbsPad less then in pObj, 1 if more and 0 if they are the same | |
106 | if (fPad==((AliHMPIDDigit*)pObj)->Pad()) return 0; | |
107 | else if(fPad >((AliHMPIDDigit*)pObj)->Pad()) return 1; | |
da08475b | 108 | else return -1; |
d3da6dc4 | 109 | } |
110 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
111 | Bool_t AliHMPIDDigit::IsInDead(Float_t x,Float_t y) | |
112 | { | |
113 | // Check is the current point is outside of sensitive area or in dead zones | |
114 | // Arguments: x,y -position | |
115 | // Returns: 1 if not in sensitive zone | |
116 | if(x<0 || x>SizeAllX() || y<0 || y>SizeAllY()) return kTRUE; //out of pc | |
117 | ||
118 | if(x>SizePcX() && x<SizePcX()+SizeDead()) return kTRUE; //in dead zone along x | |
119 | ||
120 | if(y>SizePcY() && y<SizePcY()+SizeDead()) return kTRUE; //in first dead zone along y | |
121 | if(y>SizeAllY()-SizePcY()-SizeDead() && y<SizeAllY()-SizePcY()) return kTRUE; //in second dead zone along y | |
122 | return kFALSE; | |
123 | } | |
124 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
125 | Float_t AliHMPIDDigit::Mathieson(Float_t x,Float_t y)const | |
126 | { | |
127 | // This is the answer to electrostatic problem of charge distrubution in MWPC described elsewhere. (NIM A370(1988)602-603) | |
128 | // Arguments: x,y- position of the center of Mathieson distribution | |
129 | // Returns: a charge fraction [0-1] imposed into the pad | |
130 | const Float_t kSqrtK3=0.77459667,k2=0.962,k4=0.379; | |
131 | ||
132 | Float_t ux1=kSqrtK3*TMath::TanH(k2*(x-LorsX()+0.5*SizePadX())/0.425); | |
133 | Float_t ux2=kSqrtK3*TMath::TanH(k2*(x-LorsX()-0.5*SizePadX())/0.425); | |
134 | Float_t uy1=kSqrtK3*TMath::TanH(k2*(y-LorsY()+0.5*SizePadY())/0.425); | |
135 | Float_t uy2=kSqrtK3*TMath::TanH(k2*(y-LorsY()-0.5*SizePadY())/0.425); | |
136 | return 4*k4*(TMath::ATan(ux2)-TMath::ATan(ux1))*k4*(TMath::ATan(uy2)-TMath::ATan(uy1)); | |
137 | } | |
138 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
1d4857c5 | 139 | void AliHMPIDDigit::Raw(UInt_t &w32,Int_t &ddl,Int_t &r,Int_t &d,Int_t &a)const |
d3da6dc4 | 140 | { |
141 | // Convert digit structure to raw word format | |
1d4857c5 | 142 | // Arguments: w32,ddl,r,d,a where to write the results |
143 | // Returns: none | |
144 | Int_t y2a[6]={5,3,1,0,2,4}; | |
145 | ||
146 | ddl=2*Ch()+Pc()%2; //DDL# 0..13 | |
147 | Int_t tmp=1+Pc()/2*8+PadPcY()/6; r=(Pc()%2)? 25-tmp:tmp; //row r=1..24 | |
148 | d=1+PadPcX()/8; //DILOGIC# 1..10 | |
149 | a=y2a[PadPcY()%6]+6*(PadPcX()%8); //ADDRESS 0..47 | |
150 | ||
151 | w32=0; | |
152 | AliBitPacking::PackWord((UInt_t)fQ,w32, 0,11); // 0000 0rrr rrdd ddaa aaaa qqqq qqqq qqqq Qdc bits (00..11) counts (0..4095) | |
153 | AliBitPacking::PackWord( a ,w32,12,17); // 3322 2222 2222 1111 1111 1000 0000 0000 DILOGIC address bits (12..17) counts (0..47) | |
154 | AliBitPacking::PackWord( d ,w32,18,21); // 1098 7654 3210 9876 5432 1098 7654 3210 DILOGIC number bits (18..21) counts (1..10) | |
155 | AliBitPacking::PackWord( r ,w32,22,26); // Row number bits (22..26) counts (1..24) | |
d3da6dc4 | 156 | } |
157 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
1d4857c5 | 158 | void AliHMPIDDigit::Raw(UInt_t w32,Int_t ddl) |
d3da6dc4 | 159 | { |
160 | // Converts a given raw data word to a digit | |
161 | // Arguments: w32 - 32 bits raw data word | |
162 | // ddl - DDL idx 0 1 2 3 4 ... 13 | |
163 | // Returns: none | |
1d4857c5 | 164 | Int_t a2y[6]={3,2,4,1,5,0};//pady for a given address (for single DILOGIC chip) |
165 | Int_t r = AliBitPacking::UnpackWord(w32,22,26); assert(1<=r&&r<=24); // Row number (1..24) | |
166 | 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) | |
167 | 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) | |
168 | Int_t q = AliBitPacking::UnpackWord(w32, 0,11); assert(0<=q&&q<=4095); // 0000 0rrr rrdd ddaa aaaa qqqq qqqq qqqq Qdc (0..4095) | |
169 | Int_t ch=ddl/2; | |
170 | Int_t tmp=(r-1)/8; Int_t pc=(ddl%2)? 5-2*tmp:2*tmp; | |
171 | Int_t px=(d-1)*8+a/6; | |
172 | tmp=(ddl%2)?(24-r):r-1; Int_t py=6*(tmp%8)+a2y[a%6]; | |
173 | fPad=Abs(ch,pc,px,py);fQ=q; | |
d3da6dc4 | 174 | } |
175 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
1d4857c5 | 176 | Bool_t AliHMPIDDigit::Set(Int_t ch,Int_t pc,Int_t px,Int_t py,Float_t qdc,Int_t tid) |
177 | { | |
178 | // Manual creation of digit | |
179 | // Arguments: ch,pc,px,py,qdc,tid | |
180 | // Returns: none | |
181 | if(px<kMinPx || px>kMaxPx) return kTRUE; | |
182 | if(py<kMinPy || py>kMaxPy) return kTRUE; | |
183 | ||
184 | fPad=Abs(ch,pc,px,py);fQ=qdc;fTracks[0]=tid; | |
185 | return kFALSE; | |
186 | } | |
d3da6dc4 | 187 | #endif |