Line data Source code
1 : #ifndef ALIITSMODULE_H
2 : #define ALIITSMODULE_H
3 : /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 : * See cxx source for full Copyright notice */
5 :
6 : /* $Id$ */
7 : ///////////////////////////////////////////////////////////////////////
8 : // //
9 : // Class AliITSmodule //
10 : // is a superclass for AliITSmoduleSSD, SPD and SDD. //
11 : // The main function of modules is to simulate DIGITS from //
12 : // GEANT HITS and produce POINTS from DIGITS //
13 : // It also make fast simulation without use of DIGITS //
14 : // //
15 : // created by: A.Boucham, W.Peryt, S.Radomski, P.Skowronski //
16 : // R.Barbera, B. Batynia, B. Nilsen //
17 : // ver. 1.0 CERN, 16.09.1999 //
18 : // //
19 : ///////////////////////////////////////////////////////////////////////
20 :
21 : #include <TObject.h>
22 : #include <TObjArray.h>
23 : #include <TArrayI.h> // used in inline functions GetHitTrackIndex,GetHitHitIndex, and GetHitTrackAndHitIndex.
24 :
25 : class AliITS;
26 : class AliITShit;
27 :
28 :
29 : class AliITSmodule:public TObject{
30 :
31 :
32 : public:
33 : //________________________________________________________________
34 : //
35 : // Constructors and deconstructor
36 : //________________________________________________________________
37 : //
38 : AliITSmodule(); // default constructor
39 : AliITSmodule(Int_t index); //index in TObjectArray in ITS object
40 : virtual ~AliITSmodule();
41 :
42 : //________________________________________________________________
43 : //
44 : // Position managenent (id's getters)
45 : //________________________________________________________________
46 : //
47 :
48 : Int_t GetIndex() const {
49 : // get index
50 1058798 : return fIndex;
51 : }
52 : void GetID(Int_t &lay,Int_t &lad,Int_t &det);
53 : Int_t GetLayer() {
54 : // get layer
55 930 : Int_t i,j,k;GetID(i,j,k);return i;
56 310 : }
57 : Int_t GetLadder(){
58 : // get ladder
59 0 : Int_t i,j,k;GetID(i,j,k);return j;
60 0 : }
61 : Int_t GetDet(){
62 : // get det
63 0 : Int_t i,j,k;GetID(i,j,k);return k;
64 0 : }
65 : //________________________________________________________________
66 : //
67 : // Hits management
68 : //________________________________________________________________
69 : //
70 : Int_t GetNhits() const {
71 : // get num of hits
72 0 : return fHitsM->GetEntriesFast();
73 : }
74 : AliITS *GetITS() const {
75 : // get ITS
76 0 : return fITS;
77 : }
78 : TObjArray *GetHits() const {
79 : // get hits
80 35364 : return fHitsM;
81 : }
82 : AliITShit *GetHit(Int_t i) {
83 : // returns pointer to array (TClonesArray) of pointers to hits
84 2228 : return (AliITShit*)fHitsM->At(i);
85 : }
86 : // Adds pointer of hit belonging to this module
87 : // and returns number of hits in this module
88 : Int_t AddHit(AliITShit *hit,Int_t TrackIndex,Int_t HitIndex);
89 : Int_t GetHitTrackIndex(Int_t i) {// get hit track index
90 0 : return fTrackIndex->At(i);}
91 : Int_t GetHitHitIndex(Int_t i) {
92 : // return the hit index number in TreeH for the given sorted hit in
93 : // the module.
94 0 : return fHitIndex->At(i);}
95 : void GetHitTrackAndHitIndex(Int_t i,Int_t &TrackIndex,Int_t &HitIndex) {
96 : // return the hit index number for the given hit. Hits are kept on
97 : // file according to their track index and hit index numbers.
98 0 : TrackIndex = fTrackIndex->At(i);HitIndex = fHitIndex->At(i);}
99 : // Computes mean global location from hits that make up a track passing
100 : // through a volume.
101 : Bool_t MedianHitG(AliITShit *h1,AliITShit *h2,
102 : Float_t &x,Float_t &y,Float_t &z);
103 : void MedianHitG(Int_t index, Float_t hitx1,Float_t hity1,Float_t hitz1,
104 : Float_t hitx2,Float_t hity2,Float_t hitz2, Float_t &xMg,
105 : Float_t &yMg, Float_t &zMg);
106 : // Computes mean local location from hits that make up a track passing
107 : // through a volume.
108 : Bool_t MedianHitL(AliITShit *h1,AliITShit *h2,
109 : Float_t &x,Float_t &y,Float_t &z) const;
110 : void MedianHitL(Int_t,AliITShit *,AliITShit *,Float_t &,Float_t &,
111 0 : Float_t &){};
112 : Double_t PathLength(const AliITShit *itsHit1,const AliITShit *itsHit2);
113 : // returns both the track and hit index numbers for the given hit. Hits
114 : // are kept on file according to their track index and hit index numbers.
115 : void MedianHit(Int_t index, Float_t xg,Float_t yg,Float_t zg,
116 : Int_t status,Float_t &xMg, Float_t &yMg, Float_t &zMg,
117 : Int_t &flag);
118 : void PathLength(Float_t x,Float_t y,Float_t z,Int_t status,
119 : Int_t &nseg,Float_t &x1,Float_t &y1,Float_t &z1,
120 : Float_t &dx1,Float_t &dy1, Float_t &dz1,Int_t &flag) const;
121 : Bool_t LineSegmentL(Int_t hindex,Double_t &a,Double_t &b,
122 : Double_t &c,Double_t &d,Double_t &e,Double_t &f,
123 : Double_t &de);
124 : Bool_t LineSegmentL(Int_t hindex,Double_t &a,Double_t &b,
125 : Double_t &c,Double_t &d,Double_t &e,Double_t &f,
126 : Double_t &de,Int_t &track);
127 : // if returns kTRUE; gives the parameterization of the line segment
128 : // from this step. x=a+b*t, y=c+d*t, and z=e+f*t for 0.0t<=1.0 and the
129 : // energy lost during this step all in the local detector coordinates.
130 : // if returns kFALSE; this is a begining step and no energy loss has
131 : // occured. This step is used to set up the next steps. Do not use
132 : // this parameterization.
133 : Bool_t LineSegmentG(Int_t hindex,Double_t &a,Double_t &b,
134 : Double_t &c,Double_t &d,Double_t &e,Double_t &f,
135 : Double_t &de);
136 : Bool_t LineSegmentG(Int_t hindex,Double_t &a,Double_t &b,
137 : Double_t &c,Double_t &d,Double_t &e,Double_t &f,
138 : Double_t &de,Int_t &track);
139 : // if returns kTRUE; gives the parameterization of the line segment
140 : // from this step. x=a+b*t, y=c+d*t, and z=e+f*t for 0.0t<=1.0 and the
141 : // energy lost during this step all in the global detector coordinates.
142 : // if returns kFALSE; this is a begining step and no energy loss has
143 : // occured. This step is used to set up the next steps. Do not use
144 : // this parameterization.
145 :
146 : protected:
147 : AliITSmodule(const AliITSmodule &source);
148 : AliITSmodule& operator=(const AliITSmodule &source);
149 : //________________________________________________________________
150 : //
151 : // Data members
152 : //________________________________________________________________
153 : //
154 : AliITS *fITS; // Pointer to ITS detector
155 : Int_t fIndex; //Index of this module in ITSmodules TObjectArray
156 : TObjArray *fHitsM; // Pointer to list of hits on this module
157 : TArrayI *fTrackIndex; // track index
158 : TArrayI *fHitIndex; // hit index
159 :
160 116 : ClassDef(AliITSmodule,0) // Copy the hits into a more useful order
161 : // Version set to zero so that we do not write out this class.
162 : };
163 :
164 : #endif
165 :
166 :
167 :
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