Removing obsolete class AliITSGeant3Geometry - Test beam simulation classes back...
[u/mrichter/AliRoot.git] / ITS / AliITSsDigitize.cxx
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d8b00ff7 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
88cb7938 16/* $Id$ */
94831058 17
4ae5bbc4 18#include <Riostream.h>
d8b00ff7 19
20#include <TROOT.h>
21#include <TFile.h>
22#include <TSeqCollection.h>
23#include <TString.h>
24#include <TClonesArray.h>
25
26#include "AliHeader.h"
27#include "AliRun.h"
28
29#include "AliITS.h"
30#include "AliITSsDigitize.h"
31#include "AliITSgeom.h"
32
33ClassImp(AliITSsDigitize)
34//______________________________________________________________________
35AliITSsDigitize::AliITSsDigitize(){
36 // Default constructor.
37 // Inputs:
38 // none.
39 // Outputs:
40 // none.
41 // Return:
42 // A zero-ed constructed AliITSsDigitize class.
43
88cb7938 44 fRunLoader = 0x0;
d8b00ff7 45 fITS = 0;
46 fDet[0] = fDet[1] = fDet[2] = kTRUE;
47 fInit = kFALSE;
48}
49//______________________________________________________________________
50AliITSsDigitize::AliITSsDigitize(const char* filename){
51 // Standard constructor.
52 // Inputs:
53 // const char* filename filename containing the digits to be
54 // reconstructed. If filename = 0 (nil)
55 // then no file is opened but a file is
56 // assumed to already be opened. This
57 // already opened file will be used.
58 // Outputs:
59 // none.
60 // Return:
61 // A standardly constructed AliITSsDigitize class.
62
88cb7938 63 if(gAlice)
64 {
65 delete gAlice;
66 gAlice = 0;
67 }
68 fRunLoader = AliRunLoader::Open(filename);
69 fRunLoader->LoadgAlice();
70 fRunLoader->LoadHeader();
71
d8b00ff7 72
73 Init();
74}
75//______________________________________________________________________
76AliITSsDigitize::~AliITSsDigitize(){
77 // Default constructor.
78 // Inputs:
79 // none.
80 // Outputs:
81 // none.
82 // Return:
83 // A destroyed AliITSsDigitize class.
84
88cb7938 85 if(fRunLoader) delete fRunLoader;
d8b00ff7 86 fITS = 0;
87
88}
89//______________________________________________________________________
90Bool_t AliITSsDigitize::Init(){
91 // Class Initilizer.
92 // Inputs:
93 // none.
94 // Outputs:
95 // none.
96 // Return:
97 // kTRUE if no errors initilizing this class occurse else kFALSE
88cb7938 98 //Int_t nparticles;
99
d8b00ff7 100 fITS = (AliITS*) gAlice->GetDetector("ITS");
101 if(!fITS){
102 cout << "ITS not found aborting. fITS=" << fITS << endl;
103 fInit = kFALSE;
104 return fInit;
105 } // end if !fITS
106 if(!(fITS->GetITSgeom())){
107 cout << "ITSgeom not found aborting."<< endl;
108 fInit = kFALSE;
109 return fInit;
110 } // end if !GetITSgeom()
111 // Now ready to init.
112
113 fDet[0] = fDet[1] = fDet[2] = kTRUE;
114 fEnt0 = 0;
115 fEnt = gAlice->GetEventsPerRun();
116
88cb7938 117 AliLoader* loader = fRunLoader->GetLoader("ITSLoader");
118
119 if(!loader->TreeS()){
d8b00ff7 120 cout << "Having to create the SDigits Tree." << endl;
88cb7938 121 loader->MakeTree("S");
d8b00ff7 122 } // end if !gAlice->TreeS()
123 //make branch
124 fITS->MakeBranch("S");
125 fITS->SetTreeAddress();
88cb7938 126
127 fRunLoader->GetEvent(fEnt0);
d8b00ff7 128 // finished init.
129 fInit = InitSDig();
130 return fInit;
131}
132//______________________________________________________________________
133Bool_t AliITSsDigitize::InitSDig(){
134 // Sets up SDigitization part of AliITSDetType..
135 // Inputs:
136 // none.
137 // Outputs:
138 // none.
139 // Return:
140 // none.
141
142 return kTRUE;
143}
144
145//______________________________________________________________________
146void AliITSsDigitize::Exec(const Option_t *opt){
147 // Main SDigitization function.
148 // Inputs:
149 // Option_t * opt list of subdetector to digitize. =0 all.
150 // Outputs:
151 // none.
152 // Return:
153 // none.
154 Option_t *lopt;
155// Int_t nparticles,evnt;
156
157 if(strstr(opt,"All")||strstr(opt,"ALL")||strstr(opt,"ITS")||opt==0){
158 fDet[0] = fDet[1] = fDet[2] = kTRUE;
159 lopt = "All";
160 }else{
161 fDet[0] = fDet[1] = fDet[2] = kFALSE;
162 if(strstr(opt,"SPD")) fDet[kSPD] = kTRUE;
163 if(strstr(opt,"SDD")) fDet[kSDD] = kTRUE;
164 if(strstr(opt,"SSD")) fDet[kSSD] = kTRUE;
165 if(fDet[kSPD] && fDet[kSDD] && fDet[kSSD]) lopt = "All";
166 else lopt = opt;
167 } // end if strstr(opt,...)
168
169 if(!fInit){
170 cout << "Initilization Failed, Can't run Exec." << endl;
171 return;
172 } // end if !fInit
173
88cb7938 174 fITS->HitsToSDigits(fRunLoader->GetHeader()->GetEvent(),0,-1," ",lopt," ");
d8b00ff7 175}