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990119d6 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, 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 | /* $Id$ */ | |
17 | ||
18 | //_________________________________________________________________________ | |
19 | // This is a TTask that constructs SDigits out of Hits | |
20 | // A Summable Digits is the sum of all hits in a cell | |
21 | // A threshold is applied | |
22 | // | |
23 | //*-- Author : Dmitri Peressounko (SUBATECH & KI) | |
24 | ////////////////////////////////////////////////////////////////////////////// | |
25 | ||
26 | // --- ROOT system --- | |
27 | #include "TTask.h" | |
28 | #include "TTree.h" | |
29 | #include "TSystem.h" | |
30 | // --- Standard library --- | |
31 | ||
32 | // --- AliRoot header files --- | |
33 | ||
34 | #include "AliPHOSDigit.h" | |
35 | #include "AliPHOSHit.h" | |
36 | #include "AliPHOSv1.h" | |
37 | #include "AliPHOSSDigitizer.h" | |
38 | ||
39 | #include "TROOT.h" | |
40 | #include "TFolder.h" | |
41 | ||
42 | ClassImp(AliPHOSSDigitizer) | |
43 | ||
44 | ||
45 | //____________________________________________________________________________ | |
46 | AliPHOSSDigitizer::AliPHOSSDigitizer():TTask("AliPHOSSDigitizer","") | |
47 | { | |
48 | // ctor | |
49 | fA = 0; | |
50 | fB = 10000000. ; | |
51 | fPrimThreshold = 0.01 ; | |
52 | fNevents = 0 ; // Number of events to digitize, 0 means all evens in current file | |
53 | // add Task to //root/Tasks folder | |
54 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; | |
55 | roottasks->Add(this) ; | |
56 | ||
57 | } | |
58 | //____________________________________________________________________________ | |
59 | AliPHOSSDigitizer::AliPHOSSDigitizer(char* HeaderFile, char *SDigitsFile):TTask("AliPHOSSDigitizer","") | |
60 | { | |
61 | // ctor | |
62 | fA = 0; | |
63 | fB = 10000000.; | |
64 | fPrimThreshold = 0.01 ; | |
65 | fNevents = 0 ; // Number of events to digitize, 0 means all events in current file | |
66 | fSDigitsFile = SDigitsFile ; | |
67 | fHeadersFile = HeaderFile ; | |
68 | //add Task to //root/Tasks folder | |
69 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; | |
70 | roottasks->Add(this) ; | |
71 | ||
72 | } | |
73 | ||
74 | //____________________________________________________________________________ | |
75 | AliPHOSSDigitizer::~AliPHOSSDigitizer() | |
76 | { | |
77 | // dtor | |
78 | } | |
79 | ||
80 | ||
81 | //____________________________________________________________________________ | |
82 | void AliPHOSSDigitizer::Exec(Option_t *option) { | |
83 | //Collects all hits in the same active volume into digit | |
84 | ||
85 | TFile * file = 0; | |
86 | ||
87 | // if(gAlice->TreeE()==0) //If gAlice not yet read/constructed | |
88 | if(fHeadersFile.IsNull()) | |
89 | file = new TFile("galice.root", "update") ; | |
90 | else | |
91 | file = new TFile(fHeadersFile.Data(),"update") ; | |
92 | ||
93 | gAlice = (AliRun *) file->Get("gAlice") ; | |
94 | ||
95 | ||
96 | ||
97 | TClonesArray * sdigits = new TClonesArray("AliPHOSDigit",1000) ; | |
98 | ||
99 | AliPHOS * PHOS = (AliPHOS *) gAlice->GetDetector("PHOS") ; | |
100 | ||
101 | ||
102 | if(fNevents == 0) | |
103 | fNevents = (Int_t) gAlice->TreeE()->GetEntries() ; | |
104 | ||
105 | Int_t ievent ; | |
106 | for(ievent = 0; ievent < fNevents; ievent++){ | |
107 | gAlice->GetEvent(ievent) ; | |
108 | gAlice->SetEvent(ievent) ; | |
109 | ||
110 | if(gAlice->TreeH()==0){ | |
111 | cout << "AliPHOSSDigitizer: There is no Hit Tree" << endl; | |
112 | return ; | |
113 | } | |
114 | ||
115 | if(gAlice->TreeS() == 0) | |
116 | gAlice->MakeTree("S") ; | |
117 | ||
118 | TClonesArray * hits = PHOS->Hits() ; | |
119 | ||
120 | sdigits->Clear(); | |
121 | Int_t nSdigits = 0 ; | |
122 | ||
123 | //Make branches | |
124 | char branchname[20]; | |
125 | sprintf(branchname,"%s",PHOS->GetName()); | |
126 | ||
127 | Int_t bufferSize = 16000 ; | |
128 | char * file =0; | |
129 | if(!fSDigitsFile.IsNull()) | |
130 | file = (char*) fSDigitsFile.Data() ; //ievent ; | |
131 | else | |
132 | if(gSystem->Getenv("CONFIG_SPLIT_FILE")){ //generating file name | |
133 | file = new char[30] ; | |
134 | // sprintf(file,"PHOS.SDigits%d.root",ievent) ; | |
135 | sprintf(file,"PHOS.SDigits.root") ; | |
136 | } | |
137 | else | |
138 | file = 0 ; | |
139 | ||
140 | gAlice->MakeBranchInTree(gAlice->TreeS(),branchname,&sdigits,bufferSize,file); | |
141 | ||
142 | ||
143 | Int_t splitlevel = 0 ; | |
144 | sprintf(branchname,"AliPHOSSDigitizer"); | |
145 | AliPHOSSDigitizer * sd = this ; | |
146 | gAlice->MakeBranchInTree(gAlice->TreeS(),branchname,"AliPHOSSDigitizer",&sd, bufferSize, splitlevel,file); | |
147 | ||
148 | ||
149 | //Now made SDigits from hits, for PHOS it is the same | |
150 | ||
151 | Int_t itrack ; | |
152 | for (itrack=0; itrack<gAlice->GetNtrack(); itrack++){ | |
153 | ||
154 | //=========== Get the Hits Tree for the Primary track itrack | |
155 | gAlice->ResetHits(); | |
156 | gAlice->TreeH()->GetEvent(itrack); | |
157 | ||
158 | Int_t i; | |
159 | for ( i = 0 ; i < hits->GetEntries() ; i++ ) { | |
160 | AliPHOSHit * hit = (AliPHOSHit*)hits->At(i) ; | |
161 | AliPHOSDigit * newdigit ; | |
162 | ||
163 | // Assign primary number only if contribution is significant | |
164 | if( hit->GetEnergy() > fPrimThreshold) | |
165 | newdigit = new AliPHOSDigit( hit->GetPrimary(), hit->GetId(), Digitize( hit->GetEnergy() ) ) ; | |
166 | else | |
167 | newdigit = new AliPHOSDigit( -1 , hit->GetId(), Digitize( hit->GetEnergy() ) ) ; | |
168 | ||
169 | new((*sdigits)[nSdigits]) AliPHOSDigit(* newdigit) ; | |
170 | nSdigits++ ; | |
171 | ||
172 | delete newdigit ; | |
173 | } | |
174 | ||
175 | } // loop over tracks | |
176 | ||
177 | sdigits->Sort() ; | |
178 | ||
179 | nSdigits = sdigits->GetEntries() ; | |
180 | sdigits->Expand(nSdigits) ; | |
181 | ||
182 | Int_t i ; | |
183 | for (i = 0 ; i < nSdigits ; i++) { | |
184 | AliPHOSDigit * digit = (AliPHOSDigit *) sdigits->At(i) ; | |
185 | digit->SetIndexInList(i) ; | |
186 | } | |
187 | ||
188 | gAlice->TreeS()->Fill() ; | |
189 | gAlice->TreeS()->Write(0,TObject::kOverwrite) ; | |
190 | } | |
191 | ||
192 | delete sdigits ; | |
193 | if(file) | |
194 | file->Close() ; | |
195 | ||
196 | } | |
197 | //__________________________________________________________________ | |
198 | void AliPHOSSDigitizer::SetSDigitsFile(char * file ){ | |
199 | if(!fSDigitsFile.IsNull()) | |
200 | cout << "Changing SDigits file from " <<(char *)fSDigitsFile.Data() << " to " << file << endl ; | |
201 | fSDigitsFile=file ; | |
202 | } | |
203 | //__________________________________________________________________ | |
204 | void AliPHOSSDigitizer::Print(Option_t* option)const{ | |
205 | cout << "------------------- "<< GetName() << " -------------" << endl ; | |
206 | if(fSDigitsFile.IsNull()) | |
207 | cout << " Writing SDigitis to file galice.root "<< endl ; | |
208 | else | |
209 | cout << " Writing SDigitis to file " << (char*) fSDigitsFile.Data() << endl ; | |
210 | cout << " with digitization parameters A = " << fA << endl ; | |
211 | cout << " B = " << fB << endl ; | |
212 | cout << "Threshold for Primary assignment = " << fPrimThreshold << endl ; | |
213 | cout << "---------------------------------------------------"<<endl ; | |
214 | ||
215 | } | |
216 | //__________________________________________________________________ | |
217 | Bool_t AliPHOSSDigitizer::operator==( AliPHOSSDigitizer const &sd )const{ | |
218 | if( (fA==sd.fA)&&(fB==sd.fB)&&(fPrimThreshold==sd.fPrimThreshold)) | |
219 | return kTRUE ; | |
220 | else | |
221 | return kFALSE ; | |
222 | } |