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0bd4b00f | 1 | // |
2 | // This class contains the secondary correction and the double hit | |
3 | // correction used in low-flux events. | |
4 | // | |
5 | #ifndef ALIROOT_PWG2_FORWARD_ANALYSIS_ALIFMDCORRMERGINGEFFICIENCY_H | |
6 | #define ALIROOT_PWG2_FORWARD_ANALYSIS_ALIFMDCORRMERGINGEFFICIENCY_H | |
7 | #include <TObject.h> | |
8 | #include <TObjArray.h> | |
9 | #include <TAxis.h> | |
10 | class TH1D; | |
11 | ||
12 | /** | |
13 | * This class contains the merging efficiency correction. | |
14 | * | |
15 | * The secondary correction is given by | |
16 | * @f[ | |
17 | * m_{r,v}(\eta) = | |
18 | * @f] | |
19 | * | |
20 | * These are generated from Monte-Carlo truth and ESD information. | |
21 | * | |
22 | * @ingroup pwg2_forward_corr | |
23 | */ | |
24 | class AliFMDCorrMergingEfficiency : public TObject | |
25 | { | |
26 | public: | |
27 | /** | |
28 | * Default constructor | |
29 | */ | |
30 | AliFMDCorrMergingEfficiency(); | |
31 | /** | |
32 | * Copy constructor | |
33 | * | |
34 | * @param o Object to copy from | |
35 | */ | |
36 | AliFMDCorrMergingEfficiency(const AliFMDCorrMergingEfficiency& o); | |
37 | /** | |
38 | * Destructor | |
39 | * | |
40 | */ | |
41 | virtual ~AliFMDCorrMergingEfficiency(); | |
42 | /** | |
43 | * @{ | |
44 | * @name Get corrections and parameters | |
45 | */ | |
46 | /** | |
47 | * Assignment operator | |
48 | * | |
49 | * @param o Object to assign from | |
50 | * | |
51 | * @return Reference to this object | |
52 | */ | |
53 | AliFMDCorrMergingEfficiency& operator=(const AliFMDCorrMergingEfficiency& o); | |
54 | /** | |
55 | * Get the secondary correction @f$ c_{r,v}@f$ | |
56 | * | |
57 | * @param d Detector number (1-3) | |
58 | * @param r Ring identifier (I or O) | |
59 | * @param v Primary interaction point @f$z@f$ coordinate | |
60 | * | |
61 | * @return The correction @f$ c_{r,v}@f$ | |
62 | */ | |
63 | TH1D* GetCorrection(UShort_t d, Char_t r, Double_t v) const; | |
64 | /** | |
65 | * Get the secondary correction @f$ c_{r,v}@f$ | |
66 | * | |
67 | * @param d Detector number (1-3) | |
68 | * @param r Ring identifier (I or O) | |
69 | * @param b Bin corresponding to the primary interaction point | |
70 | * @f$z@f$ coordinate (1 based) | |
71 | * | |
72 | * @return The correction @f$ c_{r,v}@f$ | |
73 | */ | |
74 | TH1D* GetCorrection(UShort_t d, Char_t r, UShort_t b) const; | |
75 | /** | |
76 | * Get the vertex axis used | |
77 | * | |
78 | * @return vertex axis | |
79 | */ | |
80 | const TAxis& GetVertexAxis() const { return fVertexAxis; } | |
81 | /* @} */ | |
82 | ||
83 | /** | |
84 | * @{ | |
85 | * @name Set corrections and parameters | |
86 | */ | |
87 | /** | |
88 | * Set the secondary map correction @f$ m_{r,v}(\eta)@f$. | |
89 | * Note, that the object takes ownership of the passed pointer. | |
90 | * | |
91 | * @param d Detector number (1-3) | |
92 | * @param r Ring identifier (I or O) | |
93 | * @param v Primary interaction point @f$z@f$ coordinate | |
94 | * @param h @f$ m_{r,v}(\eta)@f$ | |
95 | * | |
96 | * @return true if operation succeeded | |
97 | */ | |
98 | Bool_t SetCorrection(UShort_t d, Char_t r, Double_t v, TH1D* h); | |
99 | /** | |
100 | * Set the secondary map correction @f$ m_{r,v}(\eta)@f$ | |
101 | * Note, that the object takes ownership of the passed pointer. | |
102 | * | |
103 | * @param d Detector number (1-3) | |
104 | * @param r Ring identifier (I or O) | |
105 | * @param b Bin corresponding to the primary interaction point | |
106 | * @f$z@f$ coordinate (1 based) | |
107 | * @param h @f$ m_{r,v}(\eta)@f$ | |
108 | * | |
109 | * @return true if operation succeeded | |
110 | */ | |
111 | Bool_t SetCorrection(UShort_t d, Char_t r, UShort_t b, TH1D* h); | |
112 | /** | |
113 | * Set the vertex axis to use | |
114 | * | |
115 | * @param axis Vertex axis | |
116 | */ | |
117 | void SetVertexAxis(const TAxis& axis); | |
118 | /** | |
119 | * Set the vertex axis to use | |
120 | * | |
121 | * @param axis Vertex axis | |
122 | */ | |
123 | void SetVertexAxis(Int_t nBins, Double_t min, Double_t max); | |
124 | /* @} */ | |
125 | ||
126 | /** | |
127 | * @{ | |
128 | * @name Auxiliary member functions | |
129 | */ | |
130 | /** | |
131 | * Declare this as a folder | |
132 | * | |
133 | * @return Always true | |
134 | */ | |
135 | Bool_t IsFolder() const { return true; } | |
136 | /** | |
137 | * Browse this object in the browser | |
138 | * | |
139 | * @param b | |
140 | */ | |
141 | void Browse(TBrowser* b); | |
142 | /** | |
143 | * Print this object | |
144 | * | |
145 | * @param option | |
146 | */ | |
147 | void Print(Option_t* option="R") const; //*MENU* | |
148 | /* @} */ | |
149 | protected: | |
150 | /** | |
151 | * Find the vertex bin that corresponds to the passed vertex | |
152 | * | |
153 | * @param vertex The interaction points @f$z@f$-coordinate | |
154 | * | |
155 | * @return Vertex bin in @f$[1,N_{\box{vertex}}]@f$ or negative if | |
156 | * out of range | |
157 | */ | |
158 | Int_t FindVertexBin(Double_t vertex) const; | |
159 | /** | |
160 | * Get the index corresponding to the given ring | |
161 | * | |
162 | * @param d Detector | |
163 | * @param r Ring | |
164 | * | |
165 | * @return Index (0 based) or negative in case of errors | |
166 | */ | |
167 | Int_t GetRingIndex(UShort_t d, Char_t r) const; | |
168 | /** | |
169 | * Get the ring array corresponding to the specified ring | |
170 | * | |
171 | * @param d Detector | |
172 | * @param r Ring | |
173 | * | |
174 | * @return Pointer to ring array, or null in case of problems | |
175 | */ | |
176 | TObjArray* GetRingArray(UShort_t d, Char_t r) const; | |
177 | /** | |
178 | * Get the ring array corresponding to the specified ring | |
179 | * | |
180 | * @param d Detector | |
181 | * @param r Ring | |
182 | * | |
183 | * @return Pointer to ring array, or newly created container | |
184 | */ | |
185 | TObjArray* GetOrMakeRingArray(UShort_t d, Char_t r); | |
186 | ||
187 | TObjArray fRingArray; // Array of per-ring, per-vertex 2nd map | |
188 | TAxis fVertexAxis; // The vertex axis | |
189 | ClassDef(AliFMDCorrMergingEfficiency,1); // | |
190 | }; | |
191 | ||
192 | //____________________________________________________________________ | |
193 | inline void | |
194 | AliFMDCorrMergingEfficiency::SetVertexAxis(Int_t nBins, Double_t min, | |
195 | Double_t max) | |
196 | { | |
197 | fVertexAxis.Set(nBins, min, max); | |
198 | } | |
199 | //____________________________________________________________________ | |
200 | inline void | |
201 | AliFMDCorrMergingEfficiency::SetVertexAxis(const TAxis& e) | |
202 | { | |
203 | fVertexAxis.Set(e.GetNbins(), e.GetXmin(), e.GetXmax()); | |
204 | } | |
205 | #endif | |
206 | // Local Variables: | |
207 | // mode: C++ | |
208 | // End: |