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1 | //____________________________________________________________________ | |
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> | |
16 | #include <AliFMDDigit.h> | |
17 | #include <AliFMDInput.h> | |
18 | #include <AliFMDUShortMap.h> | |
19 | #include <AliFMDFloatMap.h> | |
20 | #include <AliFMDRecPoint.h> | |
21 | #include <AliESDFMD.h> | |
22 | #include <AliLog.h> | |
23 | #include <iostream> | |
24 | #include <TStyle.h> | |
25 | #include <TArrayF.h> | |
26 | #include <TCanvas.h> | |
27 | ||
28 | /** @class DrawDigitsRecs | |
29 | @brief Draw digit ADC versus Rec point mult | |
30 | @code | |
31 | Root> .L Compile.C | |
32 | Root> Compile("DrawDigitsRecs.C") | |
33 | Root> DrawDigitsRecs c | |
34 | Root> c.Run(); | |
35 | @endcode | |
36 | @ingroup FMD_script | |
37 | */ | |
38 | class DrawDigitsRecs : public AliFMDInput | |
39 | { | |
40 | private: | |
41 | TH2D* fAdcVsSingle; // Histogram | |
42 | AliFMDUShortMap fMap; | |
43 | public: | |
44 | //__________________________________________________________________ | |
45 | DrawDigitsRecs(Int_t m=1100, Double_t amin=-0.5, Double_t amax=1099.5, | |
46 | Int_t n=105, Double_t mmin=-0.5, Double_t mmax=20.5) | |
47 | { | |
48 | AddLoad(kDigits); | |
49 | AddLoad(kRecPoints); | |
50 | fAdcVsSingle = new TH2D("adcVsSingle", "ADC vs. Multiplicity (strip)", | |
51 | m, amin, amax, n, mmin, mmax); | |
52 | fAdcVsSingle->Sumw2(); | |
53 | fAdcVsSingle->SetXTitle("ADC value"); | |
54 | fAdcVsSingle->SetYTitle("Strip Multiplicity"); | |
55 | } | |
56 | //__________________________________________________________________ | |
57 | /** Begining of event | |
58 | @param ev Event number | |
59 | @return @c false on error */ | |
60 | Bool_t Begin(Int_t ev) | |
61 | { | |
62 | fMap.Reset(); | |
63 | return AliFMDInput::Begin(ev); | |
64 | } | |
65 | //__________________________________________________________________ | |
66 | Bool_t ProcessDigit(AliFMDDigit* digit) | |
67 | { | |
68 | // Cache the energy loss | |
69 | if (!digit) return kFALSE; | |
70 | UShort_t det = digit->Detector(); | |
71 | Char_t rng = digit->Ring(); | |
72 | UShort_t sec = digit->Sector(); | |
73 | UShort_t str = digit->Strip(); | |
74 | if (str > 511) { | |
75 | AliWarning(Form("Bad strip number %d in digit", str)); | |
76 | return kTRUE; | |
77 | } | |
78 | fMap(det, rng, sec, str) = digit->Counts(); | |
79 | return kTRUE; | |
80 | } | |
81 | //__________________________________________________________________ | |
82 | Bool_t ProcessRecPoint(AliFMDRecPoint* single) | |
83 | { | |
84 | if (!single) return kFALSE; | |
85 | UShort_t det = single->Detector(); | |
86 | Char_t rng = single->Ring(); | |
87 | UShort_t sec = single->Sector(); | |
88 | UShort_t str = single->Strip(); | |
89 | if (str > 511) { | |
90 | AliWarning(Form("Bad strip number %d in single", str)); | |
91 | return kFALSE; | |
92 | } | |
93 | fAdcVsSingle->Fill(fMap(det, rng, sec, str), single->Particles()); | |
94 | return kTRUE; | |
95 | } | |
96 | //__________________________________________________________________ | |
97 | Bool_t Finish() | |
98 | { | |
99 | gStyle->SetPalette(1); | |
100 | gStyle->SetOptTitle(0); | |
101 | gStyle->SetCanvasColor(0); | |
102 | gStyle->SetCanvasBorderSize(0); | |
103 | gStyle->SetPadColor(0); | |
104 | gStyle->SetPadBorderSize(0); | |
105 | gStyle->SetOptLogz(kTRUE); | |
106 | fAdcVsSingle->SetStats(0); | |
107 | fAdcVsSingle->Draw("COLZ"); | |
108 | return kTRUE; | |
109 | } | |
110 | ||
111 | ClassDef(DrawDigitsRecs,0); | |
112 | ||
113 | }; | |
114 | ||
115 | //____________________________________________________________________ | |
116 | // | |
117 | // EOF | |
118 | // |