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A few fixes in the OB materials and volumes in accordance with the latest specificati...
[u/mrichter/AliRoot.git] / ITS / AliITSsDigitize.cxx
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 #include <Riostream.h>
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
33 /////////////////////////////////////////////////////////
34 //                                                     //
35 //                                                     //
36 //                                                     //
37 ///////////////////////////////////////////////////////// 
38
39 using std::endl;
40 using std::cout;
41 ClassImp(AliITSsDigitize)
42 //______________________________________________________________________
43 AliITSsDigitize::AliITSsDigitize():
44 fInit(kFALSE),
45 fEnt(0),
46 fEnt0(0),
47 fITS(0),
48 fRunLoader(0x0){
49     // Default constructor.
50     // Inputs:
51     //  none.
52     // Outputs:
53     //   none.
54     // Return:
55     //    A zero-ed constructed AliITSsDigitize class.
56  
57     fDet[0] = fDet[1] = fDet[2] = kTRUE;
58 }
59 //______________________________________________________________________
60 AliITSsDigitize::AliITSsDigitize(const char* filename):
61 fInit(),
62 fEnt(0),
63 fEnt0(0),
64 fITS(0),
65 fRunLoader(0x0){
66     // Standard constructor.
67     // Inputs:
68     //  const char* filename    filename containing the digits to be
69     //                          reconstructed. If filename = 0 (nil)
70     //                          then no file is opened but a file is
71     //                          assumed to already be opened. This
72     //                          already opened file will be used.
73     // Outputs:
74     //   none.
75     // Return:
76     //    A standardly constructed AliITSsDigitize class.
77  
78     if(gAlice) 
79      {
80       delete gAlice;
81       gAlice = 0;
82      }
83     fRunLoader = AliRunLoader::Open(filename);
84     fRunLoader->LoadgAlice();
85     fRunLoader->LoadHeader();
86     
87  
88     Init();
89 }
90 //______________________________________________________________________
91 AliITSsDigitize::~AliITSsDigitize(){
92     // Default constructor.
93     // Inputs:
94     //  none.
95     // Outputs:
96     //   none.
97     // Return:
98     //    A destroyed AliITSsDigitize class.
99  
100     if(fRunLoader) delete fRunLoader;
101     fITS      = 0;
102  
103 }
104 //______________________________________________________________________
105 Bool_t AliITSsDigitize::Init(){
106     // Class Initilizer.
107     // Inputs:
108     //  none.
109     // Outputs:
110     //   none.
111     // Return:
112     //    kTRUE if no errors initilizing this class occurse else kFALSE
113     //Int_t nparticles;
114    
115     fITS = (AliITS*) gAlice->GetDetector("ITS");
116     if(!fITS){
117         cout << "ITS not found aborting. fITS=" << fITS << endl;
118         fInit = kFALSE;
119         return fInit;
120     } // end if !fITS
121     if(!(fITS->GetITSgeom())){
122         cout << "ITSgeom not found aborting."<< endl;
123         fInit = kFALSE;
124         return fInit;
125     } // end if !GetITSgeom()
126     // Now ready to init.
127  
128     fDet[0] = fDet[1] = fDet[2] = kTRUE;
129     fEnt0 = 0;
130     fEnt  = AliRunLoader::Instance()->GetNumberOfEvents(); 
131  
132     AliLoader* loader = fRunLoader->GetLoader("ITSLoader");
133     
134     if(!loader->TreeS()){
135         cout << "Having to create the SDigits Tree." << endl;
136         loader->MakeTree("S");
137     } // end if !gAlice->TreeS()
138     //make branch
139     fITS->MakeBranch("S");
140     fITS->SetTreeAddress();
141     
142     fRunLoader->GetEvent(fEnt0);
143     // finished init.
144     fInit = InitSDig();
145     return fInit;
146 }
147 //______________________________________________________________________
148 Bool_t AliITSsDigitize::InitSDig() const {
149     // Sets up SDigitization part of AliITSDetType..
150     // Inputs:
151     //      none.
152     // Outputs:
153     //      none.
154     // Return:
155     //      none.
156  
157     return kTRUE;
158 }
159  
160 //______________________________________________________________________
161 void AliITSsDigitize::Digitize(const Option_t *opt){
162     // Main SDigitization function.
163     // Inputs:
164     //      Option_t * opt   list of subdetector to digitize. =0 all.
165     // Outputs:
166     //      none.
167     // Return:
168     //      none.
169     Option_t *lopt;
170     Bool_t condition =kFALSE;
171     if(opt){
172       if(strstr(opt,"All")||strstr(opt,"ALL")||strstr(opt,"ITS"))condition =kTRUE;
173     }
174     else{
175       condition = kTRUE;
176     } 
177     if(condition){
178         fDet[0] = fDet[1] = fDet[2] = kTRUE;
179         lopt = "All";
180     }else{
181         fDet[0] = fDet[1] = fDet[2] = kFALSE;
182         if(strstr(opt,"SPD")) fDet[kSPD] = kTRUE;
183         if(strstr(opt,"SDD")) fDet[kSDD] = kTRUE;
184         if(strstr(opt,"SSD")) fDet[kSSD] = kTRUE;
185         if(fDet[kSPD] && fDet[kSDD] && fDet[kSSD]) lopt = "All";
186         else lopt = opt;
187     } // end if strstr(opt,...)
188  
189     if(!fInit){
190         cout << "Initilization Failed, Can't run Digitize." << endl;
191         return;
192     } // end if !fInit
193
194     fITS->HitsToSDigits(fRunLoader->GetHeader()->GetEvent(),0,-1," ",lopt," ");
195 }