Moving the functions used to initialize TF1 and TF2 to the pivate part of the class
[u/mrichter/AliRoot.git] / ITS / AliITSdigitSDD.cxx
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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>
7f1a504b 17#include <AliITSresponseSDD.h>
e869281d 18#include <TArrayI.h>
19#include <TArrayF.h>
20#include <TMath.h>
21
22///////////////////////////////////////////////////////////////////
23// //
24// Class defining the digit object
25// for SDD
26// Inherits from AliITSdigit
27// //
28///////////////////////////////////////////////////////////////////
29
30ClassImp(AliITSdigitSDD)
7f1a504b 31
32
e869281d 33//______________________________________________________________________
34AliITSdigitSDD::AliITSdigitSDD():AliITSdigit(){
35 // default constructor, zero coordinates and set array
36 // elements to clearly unphysical values. A value of 0 may
37 // be a valide track of hit number.
38 Int_t i;
39
40 for(i=0;i<fgkSsdd;i++) fTracks[i] = -3;
41 for(i=0;i<fgkSsdd;i++) fHits[i] = -1;
42 fPhysics = 0;
43 for(i=0;i<fgkSsdd;i++) fTcharges[i] = 0;
7f1a504b 44 SetSignalExpanded(-1000);
e869281d 45}
46//________________________________________________________________________
47AliITSdigitSDD::AliITSdigitSDD(Float_t phys,const Int_t *digits):
48 AliITSdigit(digits){
49 // Creates a simulated SDD digit object to be updated
50
51 fPhysics = phys;
7f1a504b 52 SetSignalExpanded(-1000);
e869281d 53}
7f1a504b 54
55//________________________________________________________________________
56void AliITSdigitSDD::InitObject(Float_t phys,const Int_t *tracks,
57 const Int_t *hits,const Float_t *charges){
58 // Protected function used by standard constructors
59 fPhysics = phys;
60 for(Int_t i=0; i<fgkSsdd; i++) {
61 fTcharges[i] = charges[i];
62 fTracks[i] = tracks[i];
63 fHits[i] = hits[i];
64 }
65}
66
e869281d 67//_____________________________________________________________________________
68AliITSdigitSDD::AliITSdigitSDD(Float_t phys,const Int_t *digits,
69 const Int_t *tracks,const Int_t *hits,
70 const Float_t *charges):
71 AliITSdigit(digits){
7f1a504b 72 // standard constructor
73 InitObject(phys,tracks,hits,charges);
74 SetSignalExpanded(-1000);
75}
76//_____________________________________________________________________________
77AliITSdigitSDD::AliITSdigitSDD( Float_t phys,const Int_t *digits,
78 const Int_t *tracks,const Int_t *hits,const Float_t *charges, Int_t sige):
79 AliITSdigit(digits) {
80 //constructor setting also fSignalExpanded
81 InitObject(phys,tracks,hits,charges);
82 SetSignalExpanded(sige);
83}
e869281d 84
7f1a504b 85//_____________________________________________________________________________
86AliITSdigitSDD::AliITSdigitSDD( Float_t phys,const Int_t *digits,
87 const Int_t *tracks,const Int_t *hits,const Float_t *charges,
88 AliITSresponseSDD* resp):
89 AliITSdigit(digits) {
90 //constructor setting fSignalExpanded through AliITSresponseSDD
91 InitObject(phys,tracks,hits,charges);
92 SetSignalExpanded(resp->Convert8to10(digits[2]));
e869281d 93}
7f1a504b 94
e869281d 95//______________________________________________________________________
96Int_t AliITSdigitSDD::GetListOfTracks(TArrayI &t,TArrayF &c){
97 // Fills the TArrayI t with the tracks found in fTracks removing
98 // duplicated tracks, summing up their charge, and ordering the tracks
99 // by the charge contributed to this digit. It will return
100 // the number of tracks and fill the remaining elements to the array
101 // t with -1.
102 // Inputs:
103 // TArrayI &t Reference to a TArrayI to contain the list of
104 // nonduplicated track numbers.
105 // TArrayF &c Reference to a TArrayF to contain the summed charge
106 // contributed by each track.
107 // Output:
108 // TArrayI &t The input array filled with the nonduplicated track
109 // numbers.
110 // TArrayF &c The input array filled with the summed charge
111 // contributed by the corresponding track in the array t.
112 // Return:
113 // Int_t The number of none -1 entries in the TArrayI t.
114 Int_t nt = t.GetSize();
115 nt = TMath::Min(nt,c.GetSize());
116 Int_t nth = this->GetNTracks();
117 Int_t n = 0,i,j;
118 Bool_t inlist = kFALSE;
119
120 t.Reset(-1); // -1 array.
121 c.Reset(0.0); // zero array.
122 for(i=0;i<nth;i++) {
123 if(this->GetTrack(i) == -1) continue;
124 inlist = kFALSE;
125 for(j=0;j<n;j++)if(this->GetTrack(i) == t.At(j)){
126 inlist = kTRUE;
127 c.AddAt(this->GetCharge(i)+c.At(j),j);
128 } // end for j/end if
129 if(!inlist){ // add to end of list
130 t.AddAt(this->GetTrack(i),n);
131 c.AddAt(this->GetCharge(i),n);
132 if(n<nt) n++;
133 } // end if
134 } // end for i
135
136 // Now lets sort the TArrays according to the charge. This algorithm
137 // is based on the method from Chapter 8 section 1 Straight Insertion
138 // sort. Wiliam H. Press, Saul A. Teukolsky, William T. Vetterling
139 // and Brian P. Flannery, "Numerical Recipeis in C, The Art of Scientific
140 // Computing", second Edition page 330 (1997).
141 Int_t tr;
142 Float_t ch;
143 for(i=0;i<n;i++){
144 tr = t.At(i);
145 ch = c.At(i);
146 j = i-1;
147 while(j>-1 && c.At(j)>ch){
148 t.AddAt(t.At(j+1),j);
149 c.AddAt(c.At(j+1),j);
150 j--;
151 } // end while
152 t.AddAt(tr,j+1);
153 c.AddAt(ch,j+1);
154 } // end for i
155 //
156 return n;
157}
7f1a504b 158
159
e869281d 160//______________________________________________________________________
161void AliITSdigitSDD::Print(ostream *os){
162 //Standard output format for this class
163 Int_t i;
164
165 AliITSdigit::Print(os);
166 *os <<","<< fPhysics;
167 for(i=0; i<fgkSsdd; i++) *os <<","<< fTcharges[i];
168 for(i=0; i<fgkSsdd; i++) *os <<","<< fTracks[i];
169 for(i=0; i<fgkSsdd; i++) *os <<","<< fHits[i];
7f1a504b 170 *os <<","<< fSignalExpanded;
e869281d 171}
172//______________________________________________________________________
173void AliITSdigitSDD::Read(istream *os){
174 //Standard input for this class
175 Int_t i;
176
177 AliITSdigit::Read(os);
178 *os >>fPhysics;
179 for(i=0; i<fgkSsdd; i++) *os >> fTcharges[i];
180 for(i=0; i<fgkSsdd; i++) *os >> fTracks[i];
181 for(i=0; i<fgkSsdd; i++) *os >> fHits[i];
7f1a504b 182 *os >>fSignalExpanded;
e869281d 183}
184//______________________________________________________________________
185ostream &operator<<(ostream &os,AliITSdigitSDD &source){
186 // Standard output streaming function.
187
188 source.Print(&os);
189 return os;
190}
191//______________________________________________________________________
192istream &operator>>(istream &os,AliITSdigitSDD &source){
193 // Standard output streaming function.
194
195 source.Read(&os);
196 return os;
197}