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Some additional changes related to the previous changes. AliL3Transform
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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 /*
17 $Log$
18 Revision 1.2  2002/01/31 18:52:09  nilsen
19 Minor change to allow the use of files that are already open. grun.C macro
20 that also does ITS digitizationa and Reconstruction all in one go.
21
22 Revision 1.1  2002/01/30 22:20:22  nilsen
23 New TTask based method to do Digits To clusters. Works with files of multiple
24 events in the file. Macro added to show how to use. Also the changes made
25 in the nessesary complilation files.
26
27 */
28 #include <TROOT.h>
29 #include <TFile.h>
30 #include <TSeqCollection.h>
31 #include <TString.h>
32 #include <TClonesArray.h>
33
34 #include "AliRun.h"
35
36 #include "AliITS.h"
37 #include "AliITSDetType.h"
38 #include "AliITSreconstruction.h"
39 #include "AliITSsegmentationSPD.h"
40 #include "AliITSsegmentationSDD.h"
41 #include "AliITSsegmentationSSD.h"
42 #include "AliITSClusterFinderSPD.h"
43 #include "AliITSClusterFinderSDD.h"
44 #include "AliITSClusterFinderSSD.h"
45 #include "AliITSresponseSDD.h"
46 #include "AliITSgeom.h"
47
48 ClassImp(AliITSreconstruction)
49
50 //______________________________________________________________________
51 AliITSreconstruction::AliITSreconstruction(){
52     // Default constructor.
53     // Inputs:
54     //  none.
55     // Outputs:
56     //   none.
57     // Return:
58     //    A zero-ed constructed AliITSreconstruction class.
59
60     fFilename = "";
61     fFile     = 0;
62     fITS      = 0;
63     fDet[0] = fDet[1] = fDet[2] = kTRUE;
64     fInit     = kFALSE;
65 }
66 //______________________________________________________________________
67 AliITSreconstruction::AliITSreconstruction(const char* filename){
68     // Standard constructor.
69     // Inputs:
70     //  const char* filename    filename containing the digits to be
71     //                          reconstructed. If filename = 0 (nil)
72     //                          then no file is opened but a file is
73     //                          assumed to already be opened. This 
74     //                          already opened file will be used.
75     // Outputs:
76     //   none.
77     // Return:
78     //    A standardly constructed AliITSreconstruction class.
79
80     fFilename = filename;
81
82     if(filename){
83         fFile = (TFile*)gROOT->GetListOfFiles()->FindObject(fFilename.Data());
84         if(fFile) fFile->Close();
85         fFile = new TFile(fFilename.Data(),"UPDATE");
86         //
87         if(gAlice) {
88           delete gAlice;
89           gAlice = 0;
90         }   
91         gAlice = (AliRun*)fFile->Get("gAlice");
92         if(!gAlice) {
93             cout << "gAlice not found on file. Aborting." << endl;
94             fInit = kFALSE;
95             return;
96         } // end if !gAlice
97     } // end if !filename.
98
99     Init();
100 }
101 //______________________________________________________________________
102 AliITSreconstruction::~AliITSreconstruction(){
103     // Default constructor.
104     // Inputs:
105     //  none.
106     // Outputs:
107     //   none.
108     // Return:
109     //    A destroyed AliITSreconstruction class.
110
111     if(fFile) fFile->Close();
112     fFile     = 0;
113     fITS      = 0;
114     
115 }
116 //______________________________________________________________________
117 Bool_t AliITSreconstruction::Init(){
118     // Class Initilizer.
119     // Inputs:
120     //  none.
121     // Outputs:
122     //   none.
123     // Return:
124     //    kTRUE if no errors initilizing this class occurse else kFALSE
125     Int_t nparticles;
126
127     fITS = (AliITS*) gAlice->GetDetector("ITS");
128     if(!fITS){
129         cout << "ITS not found aborting. fITS=" << fITS << endl;
130         fInit = kFALSE;
131         return fInit;
132     } // end if !fITS
133     if(!(fITS->GetITSgeom())){
134         cout << "ITSgeom not found aborting."<< endl;
135         fInit = kFALSE;
136         return fInit;
137     } // end if !GetITSgeom()
138     // Now ready to init.
139
140     fDet[0] = fDet[1] = fDet[2] = kTRUE;
141     fEnt0 = 0;
142     fEnt  = gAlice->GetEventsPerRun();
143     fITS->MakeTreeC();
144     nparticles = gAlice->GetEvent(fEnt0);
145     
146     // finished init.
147     fInit = InitRec();
148     return fInit;
149 }
150 //______________________________________________________________________
151 Bool_t AliITSreconstruction::InitRec(){
152     // Sets up Reconstruction part of AliITSDetType..
153     // Inputs:
154     //      none.
155     // Outputs:
156     //      none.
157     // Return:
158     //      none.
159     AliITSDetType *idt;
160
161     // SPD
162     if(fDet[kSPD]){
163         idt = fITS->DetType(kSPD);
164         AliITSsegmentationSPD *segSPD = (AliITSsegmentationSPD*)
165                                                idt->GetSegmentationModel();
166         TClonesArray *digSPD = fITS->DigitsAddress(kSPD);
167         TClonesArray *recpSPD = fITS->ClustersAddress(kSPD);
168         AliITSClusterFinderSPD *recSPD = new AliITSClusterFinderSPD(segSPD,
169                                                                     digSPD,
170                                                                     recpSPD);
171         fITS->SetReconstructionModel(kSPD,recSPD);
172     } // end if fDet[kSPD].
173     // SDD
174     if(fDet[kSDD]){
175         idt = fITS->DetType(kSDD);
176         AliITSsegmentationSDD *segSDD = (AliITSsegmentationSDD*)
177                                            idt->GetSegmentationModel();
178         AliITSresponseSDD *resSDD = (AliITSresponseSDD*)
179                                            idt->GetResponseModel();
180         TClonesArray *digSDD = fITS->DigitsAddress(kSDD);
181         TClonesArray *recpSDD = fITS->ClustersAddress(kSDD);
182         AliITSClusterFinderSDD *recSDD =new AliITSClusterFinderSDD(segSDD,
183                                                                    resSDD,
184                                                                digSDD,recpSDD);
185         fITS->SetReconstructionModel(kSDD,recSDD);
186     } // end if fDet[kSDD]
187     // SSD
188     if(fDet[kSSD]){
189         idt = fITS->DetType(kSSD);
190         AliITSsegmentationSSD *segSSD = (AliITSsegmentationSSD*)
191                                          idt->GetSegmentationModel();
192         TClonesArray *digSSD = fITS->DigitsAddress(kSSD);
193         AliITSClusterFinderSSD *recSSD =new AliITSClusterFinderSSD(segSSD,
194                                                                    digSSD);
195         fITS->SetReconstructionModel(kSSD,recSSD);
196     } // end if fDet[kSSD]
197
198     return kTRUE;
199 }
200 //______________________________________________________________________ 
201 void AliITSreconstruction::Exec(const Option_t *opt){
202     // Main reconstruction function.
203     // Inputs:
204     //      Option_t * opt   list of subdetector to digitize. =0 all.
205     // Outputs:
206     //      none.
207     // Return:
208     //      none.
209     Option_t *lopt;
210     Int_t nparticles,evnt;
211
212     if(strstr(opt,"All")||strstr(opt,"ALL")||strstr(opt,"ITS")||opt==0){
213         fDet[0] = fDet[1] = fDet[2] = kTRUE;
214         lopt = "All";
215     }else{
216         fDet[0] = fDet[1] = fDet[2] = kFALSE;
217         if(strstr(opt,"SPD")) fDet[kSPD] = kTRUE;
218         if(strstr(opt,"SDD")) fDet[kSDD] = kTRUE;
219         if(strstr(opt,"SSD")) fDet[kSSD] = kTRUE;
220         if(fDet[kSPD] && fDet[kSDD] && fDet[kSSD]) lopt = "All";
221         else lopt = opt;
222     } // end if strstr(opt,...)
223
224     if(!fInit){
225         cout << "Initilization Failed, Can't run Exec." << endl;
226         return;
227     } // end if !fInit
228     for(evnt=0;evnt<fEnt;evnt++){
229         nparticles = gAlice->GetEvent(evnt);
230         gAlice->SetEvent(evnt);
231         if(!gAlice->TreeR()) gAlice->MakeTree("R");
232         fITS->MakeBranch("R");
233         fITS->DigitsToRecPoints(evnt,0,lopt);
234     } // end for evnt
235 }