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e869281d | 1 | /************************************************************************** |
2 | * Copyright(c) 2004-2006, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | #include <AliITSdigitSDD.h> | |
17 | #include <TArrayI.h> | |
18 | #include <TArrayF.h> | |
19 | #include <TMath.h> | |
20 | ||
21 | /////////////////////////////////////////////////////////////////// | |
22 | // // | |
23 | // Class defining the digit object | |
24 | // for SDD | |
25 | // Inherits from AliITSdigit | |
26 | // // | |
27 | /////////////////////////////////////////////////////////////////// | |
28 | ||
29 | ClassImp(AliITSdigitSDD) | |
30 | //______________________________________________________________________ | |
31 | AliITSdigitSDD::AliITSdigitSDD():AliITSdigit(){ | |
32 | // default constructor, zero coordinates and set array | |
33 | // elements to clearly unphysical values. A value of 0 may | |
34 | // be a valide track of hit number. | |
35 | Int_t i; | |
36 | ||
37 | for(i=0;i<fgkSsdd;i++) fTracks[i] = -3; | |
38 | for(i=0;i<fgkSsdd;i++) fHits[i] = -1; | |
39 | fPhysics = 0; | |
40 | for(i=0;i<fgkSsdd;i++) fTcharges[i] = 0; | |
41 | } | |
42 | //________________________________________________________________________ | |
43 | AliITSdigitSDD::AliITSdigitSDD(Float_t phys,const Int_t *digits): | |
44 | AliITSdigit(digits){ | |
45 | // Creates a simulated SDD digit object to be updated | |
46 | ||
47 | fPhysics = phys; | |
48 | } | |
49 | //_____________________________________________________________________________ | |
50 | AliITSdigitSDD::AliITSdigitSDD(Float_t phys,const Int_t *digits, | |
51 | const Int_t *tracks,const Int_t *hits, | |
52 | const Float_t *charges): | |
53 | AliITSdigit(digits){ | |
54 | // Creates a simulated SDD digit object | |
55 | ||
56 | fPhysics = phys; | |
57 | for(Int_t i=0; i<fgkSsdd; i++) { | |
58 | fTcharges[i] = charges[i]; | |
59 | fTracks[i] = tracks[i]; | |
60 | fHits[i] = hits[i]; | |
61 | } // end for i | |
62 | } | |
63 | //______________________________________________________________________ | |
64 | Int_t AliITSdigitSDD::GetListOfTracks(TArrayI &t,TArrayF &c){ | |
65 | // Fills the TArrayI t with the tracks found in fTracks removing | |
66 | // duplicated tracks, summing up their charge, and ordering the tracks | |
67 | // by the charge contributed to this digit. It will return | |
68 | // the number of tracks and fill the remaining elements to the array | |
69 | // t with -1. | |
70 | // Inputs: | |
71 | // TArrayI &t Reference to a TArrayI to contain the list of | |
72 | // nonduplicated track numbers. | |
73 | // TArrayF &c Reference to a TArrayF to contain the summed charge | |
74 | // contributed by each track. | |
75 | // Output: | |
76 | // TArrayI &t The input array filled with the nonduplicated track | |
77 | // numbers. | |
78 | // TArrayF &c The input array filled with the summed charge | |
79 | // contributed by the corresponding track in the array t. | |
80 | // Return: | |
81 | // Int_t The number of none -1 entries in the TArrayI t. | |
82 | Int_t nt = t.GetSize(); | |
83 | nt = TMath::Min(nt,c.GetSize()); | |
84 | Int_t nth = this->GetNTracks(); | |
85 | Int_t n = 0,i,j; | |
86 | Bool_t inlist = kFALSE; | |
87 | ||
88 | t.Reset(-1); // -1 array. | |
89 | c.Reset(0.0); // zero array. | |
90 | for(i=0;i<nth;i++) { | |
91 | if(this->GetTrack(i) == -1) continue; | |
92 | inlist = kFALSE; | |
93 | for(j=0;j<n;j++)if(this->GetTrack(i) == t.At(j)){ | |
94 | inlist = kTRUE; | |
95 | c.AddAt(this->GetCharge(i)+c.At(j),j); | |
96 | } // end for j/end if | |
97 | if(!inlist){ // add to end of list | |
98 | t.AddAt(this->GetTrack(i),n); | |
99 | c.AddAt(this->GetCharge(i),n); | |
100 | if(n<nt) n++; | |
101 | } // end if | |
102 | } // end for i | |
103 | ||
104 | // Now lets sort the TArrays according to the charge. This algorithm | |
105 | // is based on the method from Chapter 8 section 1 Straight Insertion | |
106 | // sort. Wiliam H. Press, Saul A. Teukolsky, William T. Vetterling | |
107 | // and Brian P. Flannery, "Numerical Recipeis in C, The Art of Scientific | |
108 | // Computing", second Edition page 330 (1997). | |
109 | Int_t tr; | |
110 | Float_t ch; | |
111 | for(i=0;i<n;i++){ | |
112 | tr = t.At(i); | |
113 | ch = c.At(i); | |
114 | j = i-1; | |
115 | while(j>-1 && c.At(j)>ch){ | |
116 | t.AddAt(t.At(j+1),j); | |
117 | c.AddAt(c.At(j+1),j); | |
118 | j--; | |
119 | } // end while | |
120 | t.AddAt(tr,j+1); | |
121 | c.AddAt(ch,j+1); | |
122 | } // end for i | |
123 | // | |
124 | return n; | |
125 | } | |
126 | //______________________________________________________________________ | |
127 | void AliITSdigitSDD::Print(ostream *os){ | |
128 | //Standard output format for this class | |
129 | Int_t i; | |
130 | ||
131 | AliITSdigit::Print(os); | |
132 | *os <<","<< fPhysics; | |
133 | for(i=0; i<fgkSsdd; i++) *os <<","<< fTcharges[i]; | |
134 | for(i=0; i<fgkSsdd; i++) *os <<","<< fTracks[i]; | |
135 | for(i=0; i<fgkSsdd; i++) *os <<","<< fHits[i]; | |
136 | } | |
137 | //______________________________________________________________________ | |
138 | void AliITSdigitSDD::Read(istream *os){ | |
139 | //Standard input for this class | |
140 | Int_t i; | |
141 | ||
142 | AliITSdigit::Read(os); | |
143 | *os >>fPhysics; | |
144 | for(i=0; i<fgkSsdd; i++) *os >> fTcharges[i]; | |
145 | for(i=0; i<fgkSsdd; i++) *os >> fTracks[i]; | |
146 | for(i=0; i<fgkSsdd; i++) *os >> fHits[i]; | |
147 | } | |
148 | //______________________________________________________________________ | |
149 | ostream &operator<<(ostream &os,AliITSdigitSDD &source){ | |
150 | // Standard output streaming function. | |
151 | ||
152 | source.Print(&os); | |
153 | return os; | |
154 | } | |
155 | //______________________________________________________________________ | |
156 | istream &operator>>(istream &os,AliITSdigitSDD &source){ | |
157 | // Standard output streaming function. | |
158 | ||
159 | source.Read(&os); | |
160 | return os; | |
161 | } |