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2219d590 | 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 2-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 ALIFMDFLOWBINNED2D_H | |
30 | #define ALIFMDFLOWBINNED2D_H | |
9b98d361 | 31 | #include <TNamed.h> |
32 | #include <TAttLine.h> | |
33 | #include <TAttFill.h> | |
34 | #include <TAttMarker.h> | |
39eefe19 | 35 | #include <flow/AliFMDFlowAxis.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 AliFMDFlowBinned2D flow/AliFMDFlowBinned2D.h <flow/AliFMDFlowBinned2D.h> | |
45 | @brief A 2 dimensional "histogram" of objects of class AliFMDFlowBin. | |
46 | @ingroup c_binned */ | |
9b98d361 | 47 | class AliFMDFlowBinned2D : public TNamed, |
48 | public TAttLine, | |
49 | public TAttFill, | |
50 | public TAttMarker | |
39eefe19 | 51 | { |
52 | public: | |
53 | /** Constructor | |
54 | @param order Order of the harmonic | |
55 | @param nxbins Number of X bins. | |
56 | @param xbins Borders of X bins (@a nxbins+1 entries) | |
57 | @param nybins Number of Y bins. | |
58 | @param ybins Borders of Y bins (@a nybins+1 entries) */ | |
9b98d361 | 59 | AliFMDFlowBinned2D(const char* name, const char* title, UShort_t order, |
39eefe19 | 60 | UShort_t nxbins, Double_t* xbins, |
9b98d361 | 61 | UShort_t nybins, Double_t* ybins, |
62 | AliFMDFlowSplitter* splitter=0); | |
39eefe19 | 63 | /** Constructor |
64 | @param order Order of the harmonic | |
65 | @param xaxis Axis object | |
66 | @param yaxis Axis object */ | |
9b98d361 | 67 | AliFMDFlowBinned2D(const char* name, const char* title, UShort_t order, |
68 | const AliFMDFlowAxis& xaxis, const AliFMDFlowAxis& yaxis, | |
69 | AliFMDFlowSplitter* splitter=0); | |
39eefe19 | 70 | |
71 | /** Copy constructor */ | |
72 | AliFMDFlowBinned2D(const AliFMDFlowBinned2D& other); | |
73 | /** Copy constructor */ | |
74 | AliFMDFlowBinned2D& operator=(const AliFMDFlowBinned2D& other); | |
75 | /** Destructor */ | |
76 | virtual ~AliFMDFlowBinned2D(); | |
77 | ||
78 | /** Called at the beginning of an event */ | |
79 | virtual void Begin(); | |
80 | /** Called at the end of an event */ | |
81 | virtual void End(); | |
82 | /** Called to add a contribution to the event plane | |
83 | @param x Bin to fill into | |
84 | @param y Bin to fill into | |
85 | @param phi The angle @f$ \varphi@f$ in radians | |
86 | @param w Weight | |
87 | @param a If true, add to sub-event A, otherwise sub-event B */ | |
88 | virtual Bool_t AddToEventPlane(Double_t x, Double_t y, Double_t phi, | |
89 | Double_t w, Bool_t a); | |
90 | /** Called to add a contribution to the harmonic | |
91 | @param x Bin to fill into | |
92 | @param y Bin to fill into | |
9b98d361 | 93 | @param phi The angle @f$ \varphi@f$ in radians |
94 | @param wp The event plane angle weight | |
95 | @param wh The harmonic weight */ | |
96 | virtual Bool_t AddToHarmonic(Double_t x, Double_t y, Double_t phi, | |
97 | Double_t wp, Double_t wh); | |
39eefe19 | 98 | /** Process a full event. |
99 | @param phis List of @a n @f$ \varphi=[0,2\pi]@f$ angles | |
100 | @param xs List of @a n @f$ x@f$ values. | |
101 | @param ys List of @a n @f$ y@f$ values. | |
9b98d361 | 102 | @param wp Weights for event plane |
103 | @param wh Weights for harmonic | |
39eefe19 | 104 | @param n Size of @a phis and @a xs */ |
9b98d361 | 105 | virtual void Event(ULong_t n, Double_t* phis, Double_t* xs, Double_t* ys, |
106 | Double_t* wp=0, Double_t* wh=0); | |
39eefe19 | 107 | /** Called at the end of a run */ |
108 | virtual void Finish(); | |
109 | /** Get the bin at @a x | |
110 | @param x The bin value to find a flow object for. | |
111 | @param y The bin value to find a flow object for. | |
112 | @return The flow object at @a x,y or 0 if out of range */ | |
113 | virtual AliFMDFlowBin* GetBin(Double_t x, Double_t y) const; | |
114 | /** Get the bin at @a x | |
115 | @param i The bin index to find a flow object for. | |
116 | @param j The bin index to find a flow object for. | |
117 | @return The flow object at @a i,j or 0 if out of range */ | |
118 | virtual AliFMDFlowBin* GetBin(UShort_t i, UShort_t j) const; | |
119 | /** Whether this is to be considered a folder */ | |
120 | Bool_t IsFolder() const { return kTRUE; } | |
121 | /** Browse this object */ | |
122 | void Browse(TBrowser* b); | |
123 | protected: | |
124 | /** X axis */ | |
97e94238 | 125 | AliFMDFlowAxis fXAxis; // X axis |
39eefe19 | 126 | /** Y axis */ |
97e94238 | 127 | AliFMDFlowAxis fYAxis; // Y axis |
39eefe19 | 128 | /** Array of the flow objects */ |
97e94238 | 129 | AliFMDFlowBin** fBins; // Bins |
9b98d361 | 130 | /** The event splitter used. */ |
131 | AliFMDFlowSplitter* fSplitter; | |
39eefe19 | 132 | /** Define for ROOT I/O */ |
133 | ClassDef(AliFMDFlowBinned2D,1); | |
134 | }; | |
135 | ||
136 | ||
137 | #endif | |
138 | // | |
139 | // EOF | |
140 | // | |
141 |