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Commit | Line | Data |
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a9e2aefa | 1 | void MUONhitrectest (Int_t evNumber1=0,Int_t evNumber2=0) |
2 | { | |
3 | ///////////////////////////////////////////////////////////////////////// | |
4 | // This macro is a small example of a ROOT macro | |
5 | // illustrating how to read the output of GALICE | |
6 | // and do some analysis. | |
7 | // | |
8 | ///////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | // Dynamically link some shared libs | |
11 | ||
12 | if (gClassTable->GetID("AliRun") < 0) { | |
13 | gROOT->LoadMacro("loadlibs.C"); | |
14 | loadlibs(); | |
15 | } | |
16 | ||
17 | // Connect the Root Galice file containing Geometry, Kine and Hits | |
18 | ||
19 | TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject("galice.root"); | |
20 | if (!file) file = new TFile("galice.root"); | |
21 | ||
22 | // Get AliRun object from file or create it if not on file | |
23 | ||
24 | if (!gAlice) { | |
25 | gAlice = (AliRun*)file->Get("gAlice"); | |
26 | if (gAlice) printf("AliRun object found on file\n"); | |
27 | if (!gAlice) gAlice = new AliRun("gAlice","Alice test program"); | |
28 | } | |
29 | // Create some histograms | |
30 | ||
31 | TH2F *h21 = new TH2F("h21","Hits",100,-100,100,100,-100,100); | |
32 | TH2F *h22 = new TH2F("h22","CoG ",100,-100,100,100,-100,100); | |
33 | TH1F *h1 = new TH1F("h1","Multiplicity",30,-0.5,29.5); | |
34 | TH1F *hmult = new TH1F("hmult","Multiplicity",30,-0.5,29.5); | |
35 | TH1F *hresx = new TH1F("hresx","Residuals",100,-1,1); | |
36 | TH1F *hresy = new TH1F("hresy","Residuals",100,-10.,10); | |
37 | TH1F *hresym = new TH1F("hresym","Residuals",100,-500,500); | |
38 | TH1F *hpos = new TH1F("hnpos","Possibilities",10,-0.5,9.5); | |
39 | TH2F *hchi1 = new TH2F("hchi1","Chi2 vs Residuals",100,0,0.2,100,-500,500); | |
40 | TH2F *hchi2 = new TH2F("hchi2","Chi2 vs Residuals",100,0,20,100,-500,500); | |
41 | // | |
42 | // Loop over events | |
43 | // | |
44 | Int_t Nh=0; | |
45 | Int_t Nh1=0; | |
46 | ||
47 | for (int nev=0; nev<= evNumber2; nev++) { | |
48 | Int_t nparticles = gAlice->GetEvent(nev); | |
49 | cout << "nev " << nev <<endl; | |
50 | cout << "nparticles " << nparticles <<endl; | |
51 | if (nev < evNumber1) continue; | |
52 | if (nparticles <= 0) return; | |
53 | ||
54 | TTree *TH = gAlice->TreeH(); | |
55 | Int_t ntracks = TH->GetEntries(); | |
56 | cout<<"ntracks "<<ntracks<<endl; | |
57 | ||
58 | Int_t nbytes = 0; | |
59 | ||
60 | ||
61 | ||
62 | // Get pointers to Alice detectors and Digits containers | |
63 | AliMUON *MUON = (AliMUON*) gAlice->GetModule("MUON"); | |
64 | TClonesArray *Particles = gAlice->Particles(); | |
65 | TTree *TR = gAlice->TreeR(); | |
66 | Int_t nent=TR->GetEntries(); | |
4988e518 | 67 | |
a9e2aefa | 68 | if (MUON) { |
69 | Float_t xc[2000], yc[2000], itrc[2000]; | |
70 | TClonesArray *MUONrawclust = MUON->RawClustAddress(0); | |
4988e518 | 71 | nbytes += TR->GetEvent(0); |
a9e2aefa | 72 | Int_t nrawcl = MUONrawclust->GetEntries(); |
73 | AliMUONRawCluster *mRaw; | |
74 | for (Int_t iraw=0; iraw < nrawcl; iraw++) { | |
75 | mRaw = (AliMUONRawCluster*)MUONrawclust->UncheckedAt(iraw); | |
76 | xc[iraw]=mRaw->fX[1]; | |
77 | yc[iraw]=mRaw->fY[0]; | |
78 | itrc[iraw]=mRaw->fTracks[1]; | |
79 | } // cluster | |
80 | ||
81 | gAlice->ResetHits(); | |
82 | for (Int_t itrack=0; itrack<ntracks ;itrack++) | |
83 | { | |
84 | Int_t nbytes += TH->GetEvent(itrack); | |
85 | Int_t nhit=MUON->Hits()->GetEntriesFast(); | |
86 | for(AliMUONHit* mHit=(AliMUONHit*)MUON->FirstHit(itrack); | |
87 | mHit; | |
88 | mHit=(AliMUONHit*)MUON->NextHit()) | |
89 | { | |
4988e518 | 90 | Int_t nch = mHit->Chamber(); // chamber number |
91 | Float_t x = mHit->X(); // x-pos of hit | |
92 | Float_t y = mHit->Y(); // y-pos | |
93 | Int_t ip = mHit->Particle(); | |
a9e2aefa | 94 | if (ip != kMuonPlus && ip != kMuonMinus) continue; |
95 | if (nch != 1) continue; | |
96 | Float_t dmin=1.e8; | |
97 | Int_t imin=-1; | |
98 | // | |
99 | // Loop over clusters | |
100 | Int_t npos=0; | |
101 | ||
102 | for (Int_t i=0; i<nrawcl; i++) { | |
103 | Float_t dx = xc[i]-x; | |
104 | Float_t dy = yc[i]-y; | |
4988e518 | 105 | Float_t dr = TMath::Sqrt(dx*dx+dy*dy); |
a9e2aefa | 106 | if (dr<dmin) { |
107 | imin=i; | |
108 | dmin=dr; | |
109 | } | |
4988e518 | 110 | if (TMath::Abs(dy) < 0.05 && TMath::Abs(dx) < 0.2 ) npos++; |
a9e2aefa | 111 | } |
112 | mRaw = (AliMUONRawCluster*)MUONrawclust->UncheckedAt(imin); | |
4988e518 | 113 | Int_t track = mRaw->fTracks[1]; |
114 | Float_t xrec = mRaw->fX[1]; | |
115 | Float_t yrec = mRaw->fY[0]; | |
116 | Float_t x_res = xrec-x; | |
117 | Float_t y_res = yrec-y; | |
118 | if (y_res > 0.05 ) printf("\n track %d %f\n", itrack, y_res); | |
119 | ||
a9e2aefa | 120 | hresx->Fill(x_res,1.); |
121 | hresy->Fill(y_res,1.); | |
122 | hpos->Fill(Float_t(npos), 1.); | |
123 | hresym->Fill(y_res*1.e4,1.); | |
124 | if (npos == 0) { | |
125 | printf("No cluster %d %f %f %d\n", | |
126 | itrack, x, y, nhit); | |
127 | h21->Fill(x,y,1.); | |
128 | } | |
a9e2aefa | 129 | } // hits |
130 | } // tracks | |
131 | } // end if MUON | |
132 | } // event loop | |
133 | TCanvas *c1 = new TCanvas("c1","Charge and Residuals",400,10,600,700); | |
134 | c1->Divide(2,2); | |
135 | c1->cd(1); | |
136 | hresx->SetFillColor(42); | |
137 | hresx->SetXTitle("xrec-x"); | |
138 | hresx->Draw(); | |
139 | ||
140 | c1->cd(2); | |
141 | hresy->SetFillColor(42); | |
142 | hresy->SetXTitle("yrec-y"); | |
143 | hresy->Draw(); | |
144 | ||
145 | c1->cd(3); | |
146 | hpos->SetFillColor(42); | |
147 | hpos->SetXTitle("Possibilities"); | |
148 | hpos->Draw(); | |
149 | ||
150 | c1->cd(4); | |
151 | hresym->SetFillColor(42); | |
152 | hresym->SetXTitle("yrec-y"); | |
153 | hresym->Fit("gaus"); | |
154 | hresym->Draw(); | |
155 | ||
156 | TCanvas *c2 = new TCanvas("c2","Charge and Residuals",400,10,600,700); | |
157 | c2->Divide(2,2); | |
158 | ||
159 | c2->cd(1); | |
160 | h21->SetFillColor(42); | |
161 | h21->SetXTitle("x"); | |
162 | h21->SetYTitle("y"); | |
163 | h21->Draw(); | |
164 | ||
165 | c2->cd(2); | |
166 | hmult->SetFillColor(42); | |
167 | hmult->SetXTitle("multiplicity"); | |
168 | hmult->Draw(); | |
169 | ||
170 | c2->cd(3); | |
171 | hchi1->SetFillColor(42); | |
172 | hchi1->SetXTitle("chi2"); | |
173 | hchi1->Draw(); | |
174 | ||
175 | c2->cd(4); | |
176 | hchi2->SetFillColor(42); | |
177 | hchi2->SetXTitle("chi2"); | |
178 | hchi2->Draw(); | |
179 | ||
180 | } | |
181 | ||
182 | ||
183 |