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39eefe19 | 1 | // -*- mode: C++ -*- |
97e94238 | 2 | /* Copyright (C) 2007 Christian Holm Christensen <cholm@nbi.dk> |
3 | * | |
4 | * This library is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU Lesser General Public License | |
6 | * as published by the Free Software Foundation; either version 2.1 of | |
7 | * the License, or (at your option) any later version. | |
8 | * | |
9 | * This library is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * Lesser General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU Lesser General Public | |
15 | * License along with this library; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
17 | * USA | |
18 | */ | |
39eefe19 | 19 | /** @file |
20 | @brief Declaration of a 1-dimensional Flow "histogram" */ | |
97e94238 | 21 | //____________________________________________________________________ |
22 | // | |
23 | // A histogram of flow bins. The axis can by anything | |
24 | // (pseudo-rapidity, transvers momentum) - there's no assumption on | |
25 | // what is the basis of the histogram. The method Event can be used | |
26 | // to calculate everything in one go. Alternatively, one can use the | |
27 | // methods AddToEventPlane and AddToHarmonic. See also the example | |
28 | // TestFlow.C | |
29 | #ifndef ALIFMDFLOWBINNED1D_H | |
30 | #define ALIFMDFLOWBINNED1D_H | |
39eefe19 | 31 | #include <flow/AliFMDFlowAxis.h> |
9b98d361 | 32 | #include <TNamed.h> |
33 | #include <TAttLine.h> | |
34 | #include <TAttFill.h> | |
35 | #include <TAttMarker.h> | |
39eefe19 | 36 | |
37 | // Forward declaration | |
38 | class AliFMDFlowBin; | |
9b98d361 | 39 | class AliFMDFlowSplitter; |
39eefe19 | 40 | class TBrowser; |
9b98d361 | 41 | class TH1; |
39eefe19 | 42 | |
43 | //______________________________________________________ | |
44 | /** @class AliFMDFlowBinned1D flow/AliFMDFlowBinned1D.h <flow/AliFMDFlowBinned1D.h> | |
45 | @brief A 1 dimensional "histogram" of objects of class AliFMDFlowBin. | |
46 | @ingroup c_binned | |
47 | @example test_flow.cxx | |
48 | @example ana_flow.cxx | |
49 | */ | |
9b98d361 | 50 | class AliFMDFlowBinned1D : public TNamed, |
51 | public TAttLine, | |
52 | public TAttFill, | |
53 | public TAttMarker | |
39eefe19 | 54 | { |
55 | public: | |
9b98d361 | 56 | /** Default constructor */ |
57 | AliFMDFlowBinned1D(); | |
39eefe19 | 58 | /** Constructor |
59 | @param order Order of the harmonic | |
60 | @param nxbins Number of X bins. | |
9b98d361 | 61 | @param xbins Borders of X bins (@a nxbins+1 entries) |
62 | @param splitter Event splitter (is adopted by this object) */ | |
63 | AliFMDFlowBinned1D(const char* name, const char* title, | |
64 | UShort_t order, UShort_t k, | |
65 | UShort_t nxbins, Double_t* xbins, | |
66 | AliFMDFlowSplitter* splitter=0); | |
39eefe19 | 67 | /** Constructor |
68 | @param order Order of the harmonic | |
9b98d361 | 69 | @param xaxis Axis object |
70 | @param splitter Event splitter (is adopted by this object) */ | |
71 | AliFMDFlowBinned1D(const char* name, const char* title, | |
72 | UShort_t order, UShort_t k, | |
73 | const AliFMDFlowAxis& xaxis, | |
74 | AliFMDFlowSplitter* splitter=0); | |
39eefe19 | 75 | /** Copy constructor */ |
76 | AliFMDFlowBinned1D(const AliFMDFlowBinned1D& other); | |
77 | /** Copy constructor */ | |
78 | AliFMDFlowBinned1D& operator=(const AliFMDFlowBinned1D& other); | |
79 | /** Destructor */ | |
80 | virtual ~AliFMDFlowBinned1D(); | |
9b98d361 | 81 | |
82 | /** @{ | |
83 | @name Processing */ | |
39eefe19 | 84 | /** Called at the beginning of an event */ |
85 | virtual void Begin(); | |
86 | /** Called at the end of an event */ | |
87 | virtual void End(); | |
88 | /** Called to add a contribution to the event plane | |
89 | @param x Bin to fill into | |
90 | @param w Weight | |
91 | @param phi The angle @f$ \varphi@f$ in radians | |
92 | @param a If true, add to sub-event A, otherwise sub-event B */ | |
93 | virtual Bool_t AddToEventPlane(Double_t x, Double_t phi, | |
94 | Double_t w, Bool_t a); | |
95 | /** Called to add a contribution to the harmonic | |
96 | @param x Bin to fill into | |
9b98d361 | 97 | @param phi The angle @f$ \varphi@f$ in radians |
98 | @param wp optional weight of event plane | |
99 | @param wh optional weight of harmonic */ | |
100 | virtual Bool_t AddToHarmonic(Double_t x, Double_t phi, | |
101 | Double_t wp=1, Double_t wh=1); | |
39eefe19 | 102 | /** Process a full event. |
103 | @param phis List of @a n @f$ \varphi=[0,2\pi]@f$ angles | |
104 | @param xs List of @a n @f$ x@f$ values. | |
9b98d361 | 105 | @param wp Weights of event plane (0 or @a n long) |
106 | @param wh Weights of harmonic (0 or @a n long) | |
39eefe19 | 107 | @param n Size of @a phis and @a xs */ |
9b98d361 | 108 | virtual void Event(ULong_t n, Double_t* phis, Double_t* xs, |
109 | Double_t* ws=0, Double_t* wh=0); | |
39eefe19 | 110 | /** Called at the end of a run */ |
111 | virtual void Finish(); | |
9b98d361 | 112 | /** @} */ |
113 | ||
114 | /** @{ | |
115 | @name Bins */ | |
39eefe19 | 116 | /** Get the bin at @a x |
117 | @param x The bin value to find a flow object for. | |
118 | @return The flow object at @a x or 0 if out of range */ | |
119 | virtual AliFMDFlowBin* GetBin(Double_t x) const; | |
120 | /** Get the bin @a i | |
121 | @param i The bin number to get | |
122 | @return The flow object in bin @a i or 0 if out of range */ | |
123 | virtual AliFMDFlowBin* GetBin(UShort_t i) const; | |
9b98d361 | 124 | /** @} */ |
125 | ||
126 | /** @{ | |
127 | @name Orders */ | |
128 | /** Get the harmonic order | |
129 | @return The harmonic order */ | |
130 | virtual UShort_t Order() const; | |
131 | /** Get the harmonic order | |
132 | @return The harmonic order */ | |
133 | virtual UShort_t PsiOrder() const; | |
134 | /** @} */ | |
135 | ||
136 | /** @{ | |
137 | @name Information */ | |
39eefe19 | 138 | /** Print to standard out */ |
824e71c1 | 139 | virtual void Print(Option_t* option="s") const; //*MENU* |
9b98d361 | 140 | /** Make a histogram */ |
141 | virtual TH1* MakeHistogram(UInt_t which, UInt_t what); | |
824e71c1 | 142 | /** Draw as a histogram |
143 | @param option Option string. | |
144 | - s Draw STAR method. | |
145 | - t Draw TDR method | |
146 | - n Draw Naive method | |
147 | - b Draw bare method | |
148 | - r Draw resolution rather than harmonic. | |
149 | */ | |
150 | virtual void Draw(Option_t* option="stnb"); //*MENU* | |
39eefe19 | 151 | /** Whether this is to be considered a folder */ |
152 | Bool_t IsFolder() const { return kTRUE; } | |
153 | /** Browse this object */ | |
154 | void Browse(TBrowser* b); | |
9b98d361 | 155 | /** @} */ |
39eefe19 | 156 | protected: |
157 | /** X axis */ | |
97e94238 | 158 | AliFMDFlowAxis fXAxis; // Axis |
9b98d361 | 159 | /** Number of bins */ |
160 | Int_t fN; | |
39eefe19 | 161 | /** Array of the flow objects */ |
9b98d361 | 162 | AliFMDFlowBin** fBins; //[fN] Bins |
163 | /** The event splitter used. */ | |
164 | AliFMDFlowSplitter* fSplitter; | |
39eefe19 | 165 | /** Define for ROOT I/O */ |
166 | ClassDef(AliFMDFlowBinned1D,1); | |
167 | }; | |
168 | ||
169 | #endif | |
170 | // | |
171 | // EOF | |
172 | // |