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03248e6d | 1 | #ifndef __CINT__ |
2 | #include <iostream.h> | |
3 | ||
4 | #include "AliRun.h" | |
5 | #include "AliITS.h" | |
6 | #include "AliITSgeom.h" | |
7 | #include "AliITSRecPoint.h" | |
8 | #include "AliITSclusterV2.h" | |
9 | ||
10 | #include "TFile.h" | |
11 | #include "TTree.h" | |
12 | #include "TParticle.h" | |
13 | #endif | |
14 | ||
4465d468 | 15 | Int_t AliITSFindClustersV2(Char_t SlowOrFast='f') { |
03248e6d | 16 | /**************************************************************** |
17 | * This macro converts AliITSRecPoint(s) to AliITSclusterV2(s) * | |
18 | ****************************************************************/ | |
19 | cerr<<"AliITSRecPoint(s) -> AliITSclusterV2(s)...\n"; | |
20 | ||
21 | if (gAlice) {delete gAlice; gAlice=0;} | |
22 | ||
23 | TFile *in=TFile::Open("galice.root"); | |
24 | if (!in->IsOpen()) { cerr<<"Can't open galice.root !\n"; return 1; } | |
25 | ||
26 | if (!(gAlice=(AliRun*)in->Get("gAlice"))) { | |
27 | cerr<<"Can't find gAlice !\n"; | |
28 | return 2; | |
29 | } | |
30 | gAlice->GetEvent(0); | |
31 | ||
32 | AliITS *ITS = (AliITS*)gAlice->GetModule("ITS"); | |
33 | if (!ITS) { cerr<<"Can't find the ITS !\n"; return 3; } | |
34 | AliITSgeom *geom=ITS->GetITSgeom(); | |
35 | ||
36 | TFile *out=TFile::Open("AliITSclustersV2.root","new"); | |
37 | if (!out->IsOpen()) { | |
38 | cerr<<"Delete old AliITSclustersV2.root !\n"; | |
39 | return 4; | |
40 | } | |
41 | geom->Write(); | |
42 | ||
43 | TClonesArray *clusters=new TClonesArray("AliITSclusterV2",10000); | |
44 | TTree *cTree=new TTree("TreeC_ITS_0","ITS clusters"); | |
45 | cTree->Branch("Clusters",&clusters); | |
46 | ||
47 | TTree *pTree=gAlice->TreeR(); | |
48 | if (!pTree) { cerr<<"Can't get TreeR !\n"; return 5; } | |
4465d468 | 49 | TBranch *branch = 0; |
50 | if (SlowOrFast=='f') { | |
51 | branch = pTree->GetBranch("ITSRecPointsF"); | |
52 | } | |
53 | else { | |
54 | branch = pTree->GetBranch("ITSRecPoints"); | |
55 | } | |
03248e6d | 56 | if (!branch) { cerr<<"Can't get ITSRecPoints branch !\n"; return 6; } |
57 | TClonesArray *points=new TClonesArray("AliITSRecPoint",10000); | |
58 | branch->SetAddress(&points); | |
59 | ||
60 | TClonesArray &cl=*clusters; | |
61 | Int_t nclusters=0; | |
4465d468 | 62 | Int_t nentr=(Int_t)branch->GetEntries(); |
03248e6d | 63 | |
64 | cerr<<"Number of entries: "<<nentr<<endl; | |
65 | ||
66 | Float_t lp[5]; Int_t lab[6]; //Why can't it be inside a loop ? | |
67 | ||
68 | for (Int_t i=0; i<nentr; i++) { | |
69 | points->Clear(); | |
4465d468 | 70 | branch->GetEvent(i); |
03248e6d | 71 | Int_t ncl=points->GetEntriesFast(); if (ncl==0){cTree->Fill();continue;} |
72 | Int_t lay,lad,det; geom->GetModuleId(i,lay,lad,det); | |
73 | Float_t x,y,zshift; geom->GetTrans(lay,lad,det,x,y,zshift); | |
74 | Double_t rot[9]; geom->GetRotMatrix(lay,lad,det,rot); | |
75 | Double_t yshift = x*rot[0] + y*rot[1]; | |
76 | Int_t ndet=(lad-1)*geom->GetNdetectors(lay) + (det-1); | |
77 | nclusters+=ncl; | |
78 | ||
79 | Float_t kmip=1; // ADC->mip normalization factor for the SDD and SSD | |
80 | if(lay==4 || lay==3){kmip=280.;}; | |
81 | if(lay==6 || lay==5){kmip=38.;}; | |
82 | ||
83 | for (Int_t j=0; j<ncl; j++) { | |
84 | AliITSRecPoint *p=(AliITSRecPoint*)points->UncheckedAt(j); | |
85 | //Float_t lp[5]; | |
86 | lp[0]=-p->GetX()-yshift; if (lay==1) lp[0]=-lp[0]; | |
87 | lp[1]=p->GetZ()+zshift; | |
88 | lp[2]=p->GetSigmaX2(); | |
89 | lp[3]=p->GetSigmaZ2(); | |
90 | lp[4]=p->GetQ(); lp[4]/=kmip; | |
91 | //Int_t lab[6]; | |
92 | lab[0]=p->GetLabel(0);lab[1]=p->GetLabel(1);lab[2]=p->GetLabel(2); | |
93 | lab[3]=ndet; | |
94 | ||
95 | Int_t label=lab[0]; | |
96 | if (label>=0) { | |
97 | TParticle *part=(TParticle*)gAlice->Particle(label); | |
98 | label=-3; | |
99 | while (part->P() < 0.005) { | |
100 | Int_t m=part->GetFirstMother(); | |
101 | if (m<0) {cerr<<"Primary momentum: "<<part->P()<<endl; break;} | |
102 | label=m; | |
103 | part=(TParticle*)gAlice->Particle(label); | |
104 | } | |
105 | if (lab[1]<0) lab[1]=label; | |
106 | else if (lab[2]<0) lab[2]=label; | |
107 | else cerr<<"No empty labels !\n"; | |
108 | } | |
109 | ||
110 | new(cl[j]) AliITSclusterV2(lab,lp); | |
111 | } | |
112 | cTree->Fill(); clusters->Delete(); | |
113 | points->Delete(); | |
114 | } | |
115 | cTree->Write(); | |
116 | ||
117 | cerr<<"Number of clusters: "<<nclusters<<endl; | |
118 | ||
119 | delete cTree; delete clusters; delete points; | |
120 | ||
121 | delete gAlice; gAlice=0; | |
122 | ||
123 | in->Close(); | |
124 | out->Close(); | |
125 | ||
126 | return 0; | |
127 | ||
128 | } | |
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