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bf000c32 | 1 | //____________________________________________________________________ |
8f6ee336 | 2 | // |
3 | // $Id$ | |
4 | // | |
5 | // Script that contains a class to draw eloss from hits, versus ADC | |
6 | // counts from digits, using the AliFMDInputHits class in the util library. | |
7 | // | |
8 | // It draws the energy loss versus the p/(mq^2). It can be overlayed | |
9 | // with the Bethe-Bloc curve to show how the simulation behaves | |
10 | // relative to the expected. | |
11 | // | |
12 | // Use the script `Compile.C' to compile this class using ACLic. | |
13 | // | |
14 | #include <TH2D.h> | |
15 | #include <AliFMDHit.h> | |
8f6ee336 | 16 | #include <AliFMDDigit.h> |
15b17c89 | 17 | #include <AliFMDRecPoint.h> |
8f6ee336 | 18 | #include <AliFMDInput.h> |
19 | #include <AliFMDEdepMap.h> | |
20 | #include <AliFMDFloatMap.h> | |
21 | #include <iostream> | |
22 | #include <TStyle.h> | |
23 | #include <TArrayF.h> | |
24 | #include <TCanvas.h> | |
25 | #include <TParticle.h> | |
26 | #include <TClonesArray.h> | |
27 | #include <TTree.h> | |
28 | #include <AliStack.h> | |
29 | #include <AliLog.h> | |
30 | ||
bf000c32 | 31 | //____________________________________________________________________ |
9b48326f | 32 | /** @class DrawHitsRecs |
33 | @brief Draw hit energy loss versus rec point mult | |
34 | @code | |
35 | Root> .L Compile.C | |
36 | Root> Compile("DrawHitsRecs.C") | |
37 | Root> DrawHitsRecs c | |
38 | Root> c.Run(); | |
39 | @endcode | |
40 | @ingroup FMD_script | |
41 | */ | |
15b17c89 | 42 | class DrawHitsRecs : public AliFMDInput |
8f6ee336 | 43 | { |
44 | private: | |
15b17c89 | 45 | TH2D* fHitEvsAdc; |
46 | TH2D* fHitEvsRecM; // Histogram | |
47 | TH2D* fHitEvsRecE; // Histogram | |
48 | TH1D* fDiffE; // Histogram | |
49 | TH2D* fHitsVsRecM; // Histogram | |
50 | AliFMDEdepMap fMap; | |
8f6ee336 | 51 | AliFMDFloatMap fEta; |
52 | AliFMDFloatMap fPhi; | |
53 | AliFMDFloatMap fMult; | |
54 | Bool_t fPrimary; | |
55 | public: | |
bf000c32 | 56 | //__________________________________________________________________ |
8f6ee336 | 57 | TArrayF MakeLogScale(Int_t n, Double_t min, Double_t max) |
58 | { | |
59 | TArrayF bins(n+1); | |
60 | Float_t dp = n / TMath::Log10(max / min); | |
61 | Float_t pmin = TMath::Log10(min); | |
62 | bins[0] = min; | |
63 | for (Int_t i = 1; i < n+1; i++) { | |
64 | Float_t p = pmin + i / dp; | |
65 | bins[i] = TMath::Power(10, p); | |
66 | } | |
67 | return bins; | |
68 | } | |
bf000c32 | 69 | //__________________________________________________________________ |
8f6ee336 | 70 | DrawHitsRecs(Bool_t primary=kFALSE, |
71 | Int_t n=900, Double_t emin=1e-3, Double_t emax=10, | |
72 | Int_t m=21, Double_t mmin=-0.5, Double_t mmax=20.5) | |
73 | { | |
74 | fPrimary = primary; | |
75 | AddLoad(kRecPoints); | |
8ec606c2 | 76 | AddLoad(kHits); |
15b17c89 | 77 | AddLoad(kDigits); |
8f6ee336 | 78 | if (fPrimary) AddLoad(kKinematics); |
79 | TArrayF eloss(MakeLogScale(n, emin, emax)); | |
80 | TArrayF mults(m+1); | |
81 | mults[0] = mmin; | |
82 | for (Int_t i = 1; i < m+1; i++) mults[i] = mults[i-1] + (mmax-mmin)/m; | |
15b17c89 | 83 | |
84 | fHitEvsAdc = new TH2D("hitEvsAdc", "#Delta E_{sim} vs. ADC", | |
85 | n, emin, emax, 1025, -.5, 1024.5); | |
86 | fHitEvsAdc->SetXTitle("#Delta E_{sim} [MeV]"); | |
87 | fHitEvsAdc->SetYTitle("ADC"); | |
88 | ||
89 | fHitEvsRecM = new TH2D("hitEvsRecM", "#Delta E_{sim} vs. M_{rec}", | |
8f6ee336 | 90 | eloss.fN-1, eloss.fArray, mults.fN-1, mults.fArray); |
15b17c89 | 91 | fHitEvsRecM->SetXTitle("#Delta E_{sim} [MeV]"); |
92 | fHitEvsRecM->SetYTitle("M_{rec}"); | |
93 | ||
94 | fHitEvsRecE = new TH2D("hitEvsRecE", "#Delta E_{sim} vs. #Delta E_{rec}", | |
95 | n, emin, emax, n, emin, emax); | |
96 | fHitEvsRecE->SetXTitle("#Delta E_{sim} [MeV]"); | |
97 | fHitEvsRecE->SetYTitle("#Delta E_{rec} [MeV]"); | |
8f6ee336 | 98 | |
15b17c89 | 99 | |
100 | fDiffE = new TH1D("diffE", | |
101 | "#frac{#Delta E_{sim}-#Delta E_{rec}}{#Delta E_{sim}}", | |
102 | 1100, -1, 1.1); | |
103 | fDiffE->SetXTitle("#frac{#Delta E_{sim}-#Delta E_{rec}}{#Delta E_{sim}}"); | |
104 | ||
8f6ee336 | 105 | Double_t omin = -.5; |
106 | Double_t omax = 7.5; | |
107 | Int_t o = 8; | |
15b17c89 | 108 | fHitsVsRecM = new TH2D("hitsVsStrip", "# of Hits vs. M_{rec}", |
8f6ee336 | 109 | o, omin, omax, m, mmin, mmax); |
15b17c89 | 110 | fHitsVsRecM->SetXTitle("# of Hits"); |
111 | fHitsVsRecM->SetYTitle("M_{rec}"); | |
8f6ee336 | 112 | } |
bf000c32 | 113 | //__________________________________________________________________ |
9b48326f | 114 | /** Begining of event |
115 | @param ev Event number | |
116 | @return @c false on error */ | |
8f6ee336 | 117 | Bool_t Begin(Int_t ev) |
118 | { | |
119 | fMap.Reset(); | |
15b17c89 | 120 | return AliFMDInput::Begin(ev); |
8f6ee336 | 121 | } |
bf000c32 | 122 | //__________________________________________________________________ |
8f6ee336 | 123 | Bool_t ProcessHit(AliFMDHit* hit, TParticle*) |
124 | { | |
125 | // Cache the energy loss | |
126 | if (!hit) return kFALSE; | |
127 | UShort_t det = hit->Detector(); | |
128 | Char_t rng = hit->Ring(); | |
129 | UShort_t sec = hit->Sector(); | |
130 | UShort_t str = hit->Strip(); | |
131 | if (str > 511) { | |
132 | AliWarning(Form("Bad strip number %d in hit", str)); | |
133 | return kTRUE; | |
134 | } | |
135 | if (fPrimary) { | |
136 | TParticle* kine = fStack->Particle(hit->Track()); | |
137 | if (!kine) return kTRUE; | |
138 | if (!kine->IsPrimary()) return kTRUE; | |
139 | } | |
140 | ||
141 | fMap(det, rng, sec, str).fEdep += hit->Edep(); | |
142 | fMap(det, rng, sec, str).fN++; | |
143 | return kTRUE; | |
144 | } | |
15b17c89 | 145 | |
146 | //__________________________________________________________________ | |
147 | Bool_t ProcessDigit(AliFMDDigit* digit) | |
148 | { | |
149 | if (!digit) return kTRUE; | |
150 | ||
151 | UShort_t det = digit->Detector(); | |
152 | Char_t rng = digit->Ring(); | |
153 | UShort_t sec = digit->Sector(); | |
154 | UShort_t str = digit->Strip(); | |
155 | if (str > 511) { | |
156 | AliWarning(Form("Bad strip number %d in digit", str)); | |
157 | return kTRUE; | |
158 | } | |
159 | Double_t edep = fMap(det, rng, sec, str).fEdep; | |
160 | if (edep > 0) fHitEvsAdc->Fill(edep, digit->Counts()); | |
161 | ||
162 | return kTRUE; | |
163 | } | |
164 | ||
bf000c32 | 165 | //__________________________________________________________________ |
166 | Bool_t ProcessRecPoint(AliFMDRecPoint* single) | |
8f6ee336 | 167 | { |
15b17c89 | 168 | if (!single) return kTRUE; |
bf000c32 | 169 | UShort_t det = single->Detector(); |
170 | Char_t rng = single->Ring(); | |
171 | UShort_t sec = single->Sector(); | |
172 | UShort_t str = single->Strip(); | |
173 | if (str > 511) { | |
174 | AliWarning(Form("Bad strip number %d in single", str)); | |
15b17c89 | 175 | return kTRUE; |
176 | } | |
177 | Double_t edep = fMap(det, rng, sec, str).fEdep; | |
178 | Int_t nhit = fMap(det, rng, sec, str).fN; | |
179 | if (edep > 0) { | |
180 | fHitEvsRecM->Fill(edep, single->Particles()); | |
181 | fHitEvsRecE->Fill(edep, single->Edep()); | |
182 | fDiffE->Fill((single->Edep() - edep) / edep); | |
8f6ee336 | 183 | } |
15b17c89 | 184 | if (nhit > 0) fHitsVsRecM->Fill(nhit, single->Particles()); |
8f6ee336 | 185 | return kTRUE; |
186 | } | |
bf000c32 | 187 | //__________________________________________________________________ |
8f6ee336 | 188 | Bool_t Finish() |
189 | { | |
190 | gStyle->SetPalette(1); | |
191 | gStyle->SetOptTitle(0); | |
192 | gStyle->SetCanvasColor(0); | |
193 | gStyle->SetCanvasBorderSize(0); | |
194 | gStyle->SetPadColor(0); | |
195 | gStyle->SetPadBorderSize(0); | |
196 | ||
15b17c89 | 197 | new TCanvas("c0", fHitEvsAdc->GetTitle()); |
198 | fHitEvsAdc->SetStats(kFALSE); | |
199 | fHitEvsAdc->Draw("COLZ"); | |
200 | ||
201 | new TCanvas("c1", fHitEvsRecM->GetTitle()); | |
202 | fHitEvsRecM->SetStats(kFALSE); | |
203 | fHitEvsRecM->Draw("COLZ"); | |
204 | ||
205 | new TCanvas("c2", fHitEvsRecE->GetTitle()); | |
206 | fHitEvsRecE->SetStats(kFALSE); | |
207 | fHitEvsRecE->Draw("COLZ"); | |
208 | ||
209 | new TCanvas("c3", fDiffE->GetTitle()); | |
210 | fDiffE->Draw(); | |
8f6ee336 | 211 | |
15b17c89 | 212 | new TCanvas("c4", fHitsVsRecM->GetTitle()); |
213 | fHitsVsRecM->SetStats(kFALSE); | |
214 | fHitsVsRecM->Draw("COLZ"); | |
8f6ee336 | 215 | |
216 | return kTRUE; | |
217 | } | |
218 | ||
219 | ClassDef(DrawHitsRecs,0); | |
220 | }; | |
221 | ||
222 | //____________________________________________________________________ | |
223 | // | |
224 | // EOF | |
225 | // |