/[PAMELA software]/PamelaLevel2/doc/examples/Loop.cpp
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Contents of /PamelaLevel2/doc/examples/Loop.cpp

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Revision 1.1 - (show annotations) (download)
Wed Dec 6 11:07:35 2006 UTC (18 years ago) by pam-fi
Branch: MAIN
*** empty log message ***

1 #if !defined(__CINT__) || defined(__MAKECINT__)
2
3 #include <PamLevel2.h>
4
5 #include <TTree.h>
6 #include <TChain.h>
7 #include <TFile.h>
8 #include <TList.h>
9 #include <TROOT.h>
10 #include <TString.h>
11 #include <TBenchmark.h>
12 #include <TFriendElement.h>
13
14 #include <stdlib.h>
15 #include <iostream>
16 using namespace std;
17
18 #endif
19
20 //===================================
21 // global variables
22 //===================================
23 PamLevel2 *event = NULL;
24 TChain *tree = NULL;
25 TFile *outfh = NULL;
26 TFile *outft = NULL;
27 TTree *otree = NULL;
28
29 bool fillTree = false;
30 bool fillHistos = false;
31
32 //====================================
33 // Functions to be provided externally
34 //====================================
35 bool Select(PamLevel2*);
36 void CreateHistos();
37 void FillHistos(PamLevel2*);
38 void SaveHistos(TFile *);
39
40 //==========================================
41 //000000000000000000000000000000000000000000
42 //==========================================
43 bool Begin(){
44
45 //------------------------
46 // load magnetic field
47 //------------------------
48 TString fieldpath = gSystem->Getenv("PAM_CALIB");
49 if(fieldpath.IsNull()){
50 cout << " **ERROR** : No PAMELA environment variables defined "<<endl;
51 return 0;
52 }
53 fieldpath.Append("/trk-param/field_param-0/");
54 event->LoadField(fieldpath.Data());
55
56
57 //------------------------------
58 // create output histos/trees
59 //------------------------------
60 if(fillHistos) CreateHistos();
61 if(fillTree) event->CreateCloneTrees(tree);
62
63 cout << "\nBegin() - done\n\n";
64 return 1;
65
66 }
67 //==========================================
68 //000000000000000000000000000000000000000000
69 //==========================================
70
71 bool Process(int iev){
72
73 //------------------------------
74 // create output histos/trees
75 //------------------------------
76
77 event->Clear();
78 tree->GetEntry(iev);
79
80 if( !Select(event) )return false;
81 // cout <<event->TrkLevel2::ntrk()<<endl;
82
83
84 // if(fillTree)event->FillCloneTrees();
85 // if(fillHistos)FillHistos(event);
86
87 return true;
88
89 }
90 //==========================================
91 //000000000000000000000000000000000000000000
92 //==========================================
93
94 bool Finish(){
95
96 if(fillTree){
97 outft->cd();
98 event->WriteCloneTrees();
99 outft->Close();
100 }
101 if(fillHistos){
102 SaveHistos(outfh);
103 outfh->Close();
104 }
105
106 cout << "Finish() - done\n";
107
108 return 1;
109 }
110
111 //==========================================
112 //000000000000000000000000000000000000000000
113 //==========================================
114 Int_t Loop(TString ddir,TString list, ULong64_t nmax, TString options, TString outfile){
115
116 if(options.Contains("fillTree"))fillTree=true;
117 if(options.Contains("fillHisto"))fillHistos=true;
118
119 // -------------------
120 // create output files
121 // -------------------
122 TString outfile_t =0;
123 TString outfile_h =0;
124 if( outfile.IsNull() ){
125 if(!list.IsNull())outfile = list(0,list.Last('.'));
126 else outfile = "output";
127 }else{
128 if(outfile.Contains(".root"))outfile = outfile(0,outfile.Last('.'));
129 }
130 if(fillTree){
131 outfile_t = outfile;
132 outfile_t.Append("-tree.root");
133 outft = (TFile*)gROOT->FindObject(outfile_t); if (outft) outft->Close();
134 outft = new TFile(outfile_t,"RECREATE");
135 if(outft->IsZombie()){
136 cout << "Output file could not be created\n";
137 return 1;
138 };
139 cout << "Created output file: "<<outft->GetName()<<endl;
140 }
141 if(fillHistos){
142 outfile_h = outfile;
143 outfile_h.Append("-histo.root");
144 outfh = (TFile*)gROOT->FindObject(outfile_h); if (outfh) outfh->Close();
145 outfh = new TFile(outfile_h,"RECREATE");
146 if(outfh->IsZombie()){
147 cout << "Output file could not be created\n";
148 return 1;
149 };
150 cout << "Created output file: "<<outfh->GetName()<<endl;
151 }
152
153 // --------------------
154 // read input file/list
155 // --------------------
156 event = new PamLevel2();
157 if(list.Contains(".root")){
158 stringstream command;
159 command.str("");
160 command << " echo "<<list<<" > list-temp.txt";
161 cout << command.str().c_str() << endl;
162 gSystem->Exec(command.str().c_str());
163 tree = event->GetPamTree(event->GetListOfLevel2Files(ddir,"list-temp.txt"),options);
164 }else{
165 tree = event->GetPamTree(event->GetListOfLevel2Files(ddir,list),options);
166 };
167 tree->SetCacheSize(0);
168
169 // ---------------
170 // initializations
171 // ---------------
172 if( !Begin() )return 0;;
173
174 // -----------------
175 // loop over events
176 // -----------------
177 ULong64_t nevents = tree->GetEntriesFast();
178 if(!nmax)nmax = numeric_limits<ULong64_t>::max();
179 if(nevents < nmax)nmax=nevents;
180
181 cout << endl<<" Start loop over events: "<< nmax<<endl;
182 Int_t ntrk=0;
183 Int_t sel=0;
184 TBenchmark *benchmark = new TBenchmark();
185 benchmark->Start("event-loop");
186
187 TString current_file = "";
188 for(ULong64_t iev=60000; iev<nmax; iev++){
189
190 // tree->GetEntry(iev);
191 if( Process(iev) )sel++;
192
193 if(current_file.CompareTo(tree->GetFile()->GetName())){
194 current_file=tree->GetFile()->GetName();
195 cout << iev<< " -> "<< current_file << endl;
196 // cout << tree->GetFile()->GetName() << endl;
197 };
198
199 if(event->TrkLevel2::ntrk() >0)ntrk++;
200 if(!(iev%100))cout << iev << endl;
201
202 };
203 benchmark->Show("event-loop");
204 cout << ntrk <<" tracks over "<<nmax<<" events ";
205 if(nmax)cout<<"("<< 100*ntrk/nmax<<"%)"<<endl;
206 cout << "Selected events: "<<sel<<endl;
207
208 // --------------
209 // close and exit
210 // --------------
211 Finish();
212
213 return 0;
214
215 }
216
217 /////////////////////////////////////////////////////////////////
218
219 #if !defined(__CINT__)
220
221 // input parameters
222 Bool_t DEBUG;
223 TString DIR;
224 TString LIST;
225 ULong64_t MAXEV;
226 TString OUTFILE;
227
228 void usage(){
229 cout << "USAGE:"<<endl;
230 cout << "-processDir [DIR] - Level2/Level1 data directory \n";
231 cout << "-processList [LIST] - list (txt) of names of files to be analysed \n";
232 cout << "-outputFile [PATH] - name of the output file \n";
233 cout << "-NumEvents [XXX] - number of events to be analysed \n";
234 cout << "--debug, -g - debug mode \n";
235 cout << "--help, -h - print this help \n";
236 }
237 //
238 int HandleInputPar(int argc, char **argv){
239
240 if(argc>1){
241
242 if(!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help") ){
243 usage();
244 return(1);
245 };
246 // -----------------------
247 // Read input parameters
248 // -----------------------
249 /* DEBUG = false;
250 DIR = gSystem->WorkingDirectory();
251 LIST = "";
252 OUTFILE = "TrkLevel1Report_output.root";
253 MAXEV = numeric_limits<ULong64_t>::max();
254 */
255
256
257 for (int i = 1; i < argc; i++){
258 // -----------------------------------------------------//
259 if (!strcmp(argv[i], "-processDir")){
260 if (++i >= argc) throw -1;
261 DIR = argv[i];
262 cout << "processDir "<<DIR<<endl;
263 continue;
264 }
265 // -----------------------------------------------------//
266 else if (!strcmp(argv[i], "-processList")){
267 if (++i >= argc) throw -1;
268 LIST = argv[i];
269 cout << "processList "<<LIST<<endl;
270 continue;
271 }
272 // -----------------------------------------------------//
273 else if (!strcmp(argv[i], "-outputFile")){
274 if (++i >= argc) throw -1;
275 OUTFILE = argv[i];
276 cout << "outputFile "<<OUTFILE<<endl;
277 continue;
278 }
279 // -----------------------------------------------------//
280 else if (!strcmp(argv[i], "-NumEvents")){
281 if (++i >= argc) throw -1;
282 MAXEV = atoi(argv[i]);
283 cout << "NumEvents "<<MAXEV<<endl;
284 continue;
285 }
286 // -----------------------------------------------------//
287 else if (!strcmp(argv[i], "--debug") || !strcmp(argv[i], "-g")){
288 DEBUG = true;
289 continue;
290 }
291 // -----------------------------------------------------//
292 else{
293 cout << "Unidentified input parameter. Ignored."<< endl;
294 };
295 };
296 }else{
297 usage();
298 return(1);
299 };
300 // -----------------------
301 // Check input parameters
302 // -----------------------
303
304
305 return(0);
306
307 };
308 //
309
310 int main(int argc, char **argv)
311 {
312
313 if( HandleInputPar(argc,argv) )return(1);
314
315 Loop(DIR,LIST,MAXEV,"-ALL+TRK1+TRK2+CAL1+CAL2+TOF+AC fillHisto fillTree",OUTFILE);
316
317 cout << "Back to main - end"<<endl;
318
319 return 0;
320
321 };
322
323 #endif

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