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b2a297fa | 1 | /************************************************************************* |
2 | * Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
27de2dfb | 16 | /* $Id$ */ |
17 | ||
b2a297fa | 18 | /////////////////////////////////////////////////////////////////////////// |
19 | // Cut class providing cuts for both legs in the AliDielectronPair // | |
20 | // // | |
21 | // // | |
22 | /* | |
23 | Add any number of leg cuts using e.g. for leg 1 | |
24 | GetFilterLeg1().AddCuts(mycut) | |
25 | where mycut has to inherit from AliAnalysisCuts | |
26 | ||
27 | */ | |
28 | // // | |
29 | /////////////////////////////////////////////////////////////////////////// | |
30 | ||
31 | #include <TList.h> | |
32 | ||
33 | #include "AliDielectronPair.h" | |
34 | #include "AliVParticle.h" | |
35 | ||
36 | #include "AliDielectronPairLegCuts.h" | |
37 | ||
38 | ClassImp(AliDielectronPairLegCuts) | |
39 | ||
40 | ||
41 | AliDielectronPairLegCuts::AliDielectronPairLegCuts() : | |
42 | AliAnalysisCuts(), | |
43 | fFilterLeg1("PairFilterLeg1","PairFilterLeg1"), | |
44 | fFilterLeg2("PairFilterLeg2","PairFilterLeg2"), | |
45 | fCutType(kBothLegs) | |
46 | { | |
47 | // | |
48 | // Default contructor | |
49 | // | |
50 | } | |
51 | ||
52 | //________________________________________________________________________ | |
53 | AliDielectronPairLegCuts::AliDielectronPairLegCuts(const char* name, const char* title) : | |
54 | AliAnalysisCuts(name,title), | |
55 | fFilterLeg1("PairFilterLeg1","PairFilterLeg1"), | |
56 | fFilterLeg2("PairFilterLeg2","PairFilterLeg2"), | |
57 | fCutType(kBothLegs) | |
58 | { | |
59 | // | |
60 | // Named contructor | |
61 | // | |
62 | } | |
63 | ||
64 | ||
65 | //________________________________________________________________________ | |
66 | Bool_t AliDielectronPairLegCuts::IsSelected(TObject* track) | |
67 | { | |
68 | // | |
69 | // check if cuts are fulfilled | |
70 | // | |
71 | ||
72 | //check if we have a AliDielectronPair | |
73 | AliDielectronPair *pair=dynamic_cast<AliDielectronPair*>(track); | |
74 | if (!pair) return kFALSE; | |
75 | ||
76 | //get both legs | |
77 | AliVParticle *leg1=pair->GetFirstDaughter(); | |
78 | AliVParticle *leg2=pair->GetSecondDaughter(); | |
79 | ||
80 | //mask used to require that all cuts are fulfilled | |
81 | UInt_t selectedMaskLeg1=(1<<fFilterLeg1.GetCuts()->GetEntries())-1; | |
82 | UInt_t selectedMaskLeg2=(1<<fFilterLeg2.GetCuts()->GetEntries())-1; | |
83 | ||
84 | //test cuts | |
85 | Bool_t isLeg1selected=(fFilterLeg1.IsSelected(leg1)==selectedMaskLeg1); | |
86 | Bool_t isLeg2selected=(fFilterLeg2.IsSelected(leg2)==selectedMaskLeg2); | |
87 | ||
8df8e382 | 88 | Bool_t isLeg1selectedMirror=(fFilterLeg1.IsSelected(leg2)==selectedMaskLeg1); |
89 | Bool_t isLeg2selectedMirror=(fFilterLeg2.IsSelected(leg1)==selectedMaskLeg2); | |
90 | ||
b2a297fa | 91 | Bool_t isSelected=isLeg1selected&&isLeg2selected; |
92 | if (fCutType==kAnyLeg) | |
93 | isSelected=isLeg1selected||isLeg2selected; | |
8df8e382 | 94 | |
95 | if (fCutType==kMixLegs) | |
96 | isSelected=(isLeg1selected&&isLeg2selected)||(isLeg1selectedMirror&&isLeg2selectedMirror); | |
97 | ||
b2a297fa | 98 | SetSelected(isSelected); |
99 | return isSelected; | |
100 | } | |
101 | ||
102 | ||
103 |