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1621ded2 | 1 | #if !defined(__CINT__) || defined(__MAKECINT__) |
2 | #include <TFile.h> | |
3 | #include <TH1F.h> | |
4 | #include <TH2F.h> | |
5 | #include <TTree.h> | |
6 | #include <Riostream.h> | |
7 | #include <AliRun.h> | |
8 | #include <AliHeader.h> | |
9 | #include <AliGenEventHeader.h> | |
10 | #include <AliITSVertexerPPZ.h> | |
88cb7938 | 11 | #include <AliRunLoader.h> |
12 | #include <AliITSLoader.h> | |
1621ded2 | 13 | |
14 | #endif | |
15 | ||
88cb7938 | 16 | void AliITSVertexerZTest(Float_t delphi=0.05,Float_t window=3.,Float_t initx=0., Float_t inity=0.,TString FileIn="galice.root"){ |
1621ded2 | 17 | // delphi ---> azimuthal range to accept tracklets |
18 | // window ---> window in Z around the peak of tracklets proj. in mm | |
88cb7938 | 19 | Int_t kDebug = 50; |
1621ded2 | 20 | TH2F *diff2 = new TH2F("diff2","Zfound vs Ztrue",100,-6,6,100,-6,6); |
21 | TH1F *diff1 = new TH1F("diff1","Zfound - Ztrue(#mu m)",100,-500,500); | |
22 | delete gAlice; | |
23 | gAlice = 0; | |
88cb7938 | 24 | AliRunLoader *rl = AliRunLoader::Open(FileIn.Data()); |
25 | Int_t retval = rl->LoadgAlice(); | |
26 | if(retval){ | |
27 | cerr<<"AliITSVertexerZTest.C: AliRun object not found"<<endl; | |
28 | return; | |
29 | } | |
30 | retval = rl->LoadHeader(); | |
31 | if (retval){ | |
32 | cerr<<"AliITSVertexerZTest.C : LoadHeader returned error"<<endl; | |
33 | return; | |
34 | } | |
35 | retval = rl->LoadKinematics(); | |
36 | if (retval){ | |
37 | cerr<<"AliITSVertexerZTest.C : LoadKinematics returned error"<<endl; | |
38 | return; | |
39 | } | |
40 | AliITSLoader* ITSloader = (AliITSLoader*) rl->GetLoader("ITSLoader"); | |
41 | ||
42 | if(!ITSloader){ | |
43 | cerr<<"AliITSVertexerZTest.C : ITS loader not found"<<endl; | |
44 | return; | |
45 | } | |
46 | // ITSloader->LoadRecPoints("read"); | |
47 | // TFile *fo = new TFile("vertici.root","recreate"); | |
48 | AliITSVertexerPPZ *dovert = new AliITSVertexerPPZ("default",initx,inity); | |
1621ded2 | 49 | dovert->SetDebug(0); |
50 | dovert->SetDiffPhiMax(delphi); | |
51 | dovert->SetWindow(window); | |
52 | dovert->PrintStatus(); | |
53 | Int_t meno100=0; | |
54 | Int_t meno200=0; | |
55 | Int_t meno110=0; | |
56 | Int_t sigmazero=0; | |
57 | AliITSVertex *vert = 0; | |
88cb7938 | 58 | for(Int_t i=0; i<rl->TreeE()->GetEntries(); i++){ |
59 | rl->GetEvent(i); | |
1621ded2 | 60 | // The true Z coord. is fetched for comparison |
88cb7938 | 61 | AliHeader *header = rl->GetHeader(); |
1621ded2 | 62 | AliGenEventHeader* genEventHeader = header->GenEventHeader(); |
63 | TArrayF primaryVertex(3); | |
64 | genEventHeader->PrimaryVertex(primaryVertex); | |
65 | vert = dovert->FindVertexForCurrentEvent(i); | |
66 | if(kDebug>0){ | |
67 | // Prints the results | |
68 | cout <<"========================================================\n"; | |
69 | cout << "Event number: "<<i<<") Z Vertex:"<<endl; | |
70 | if(vert){ | |
71 | cout<<"FOUND: "<<vert->GetZv()<<"; "; | |
72 | cout<<vert->GetZRes()<<"; "<<vert->GetNContributors()<<endl; | |
73 | } | |
74 | else { | |
75 | cout<<"NOT FOUND - fZFound= "<<dovert->GetZFound(); | |
76 | cout<<" fZsig= "<<dovert->GetZsig()<<endl; | |
77 | if(dovert->GetZFound() == -100) meno100++; | |
78 | if(dovert->GetZFound() == -200) meno200++; | |
79 | if(dovert->GetZFound() == -110) meno110++; | |
80 | } | |
81 | cout <<" True Z position "<<primaryVertex[2]<<", diff= "; | |
82 | cout<<(primaryVertex[2]-dovert->GetZFound())*10000.<<endl; | |
83 | } | |
84 | if(vert){ | |
85 | Double_t pos[3]; | |
86 | for(Int_t kk=0;kk<3;kk++)pos[kk]=(Double_t)primaryVertex[kk]; | |
87 | vert->SetTruePos(pos); | |
88 | Float_t found = vert->GetZv(); | |
89 | diff2->Fill(primaryVertex[2],found); | |
90 | found = 10000.*(found-primaryVertex[2]); | |
91 | if(vert->GetZRes()!=0){ | |
92 | diff1->Fill(found); | |
93 | } | |
94 | else { | |
95 | sigmazero++; | |
96 | } | |
97 | dovert->WriteCurrentVertex(); | |
98 | } | |
99 | } | |
1621ded2 | 100 | if(kDebug>0){ |
101 | cout<<"Number of bad vertices with code -100: "<<meno100<<endl; | |
102 | cout<<"Number of bad vertices with code -110: "<<meno110<<endl; | |
103 | cout<<"Number of bad vertices with code -200: "<<meno200<<endl; | |
104 | cout<<"Only one tracklet (sigma = 0) "<<sigmazero<<endl; | |
105 | } | |
106 | ||
107 | } |