Fixes for Coverity warnings (M. van Leeuwen)
[u/mrichter/AliRoot.git] / ITS / AliITSVertexer3D.h
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70c95f95 1#ifndef ALIITSVERTEXER3D_H
2#define ALIITSVERTEXER3D_H
3
27167524 4#include<AliITSVertexer.h>
70c95f95 5
6///////////////////////////////////////////////////////////////////
7// //
8// Class for primary vertex finding (3D reconstruction) //
9// //
10///////////////////////////////////////////////////////////////////
11
6a0d56b8 12/* $Id$ */
13
f5f6da22 14#include <TClonesArray.h>
507265fd 15#include <TRandom3.h>
6a0d56b8 16#include <AliESDVertex.h>
7340864d 17#include <TH3F.h>
cd1c2af1 18#include <TBits.h>
70c95f95 19
20class AliITSVertexer3D : public AliITSVertexer {
21
22 public:
23
24 AliITSVertexer3D();
70c95f95 25 virtual ~AliITSVertexer3D();
308c2f7c 26 virtual AliESDVertex* FindVertexForCurrentEvent(TTree *itsClusterTree);
6b4d9537 27 void FindVertex3DIterative();
87104b06 28 void FindVertex3DIterativeMM();
6b4d9537 29 void FindVertex3D(TTree *itsClusterTree);
6a0d56b8 30 AliESDVertex GetVertex3D() const {return fVert3D;}
70c95f95 31 virtual void PrintStatus() const;
6b4d9537 32 static Bool_t DistBetweenVertices(AliESDVertex &a, AliESDVertex &b, Double_t test, Double_t &dist);
242c8025 33 void SetWideFiducialRegion(Double_t dz = 40.0, Double_t dr=2.5){
7203e11a 34 SetCoarseMaxRCut(dr);
35 SetZCutDiamond(dz);
36 }
242c8025 37 void SetNarrowFiducialRegion(Double_t dz = 0.5, Double_t dr=0.5){
7203e11a 38 SetMaxRCut(dr);
39 SetMaxZCut(dz);
40 }
242c8025 41 void SetDeltaPhiCuts(Double_t dphiloose=0.5, Double_t dphitight=0.025){
7203e11a 42 SetCoarseDiffPhiCut(dphiloose);
43 SetDiffPhiMax(dphitight);
44 }
242c8025 45 void SetCoarseDiffPhiCut(Double_t dphi = 0.5){fCoarseDiffPhiCut=dphi;}
46 void SetFineDiffPhiCut(Double_t dphi = 0.05){fFineDiffPhiCut=dphi;}
87104b06 47 void SetCutOnPairs(Double_t cp = 0.15){fCutOnPairs = cp;}
242c8025 48 void SetCoarseMaxRCut(Double_t rad = 2.5){fCoarseMaxRCut=rad;}
49 void SetMaxRCut(Double_t rad = 0.5){fMaxRCut=rad;}
87104b06 50 void SetMaxRCutAlgo2(Double_t rad = 0.2){fMaxRCut2=rad;}
199775b9 51 void SetZCutDiamond(Double_t zcut = 40.0){fZCutDiamond=zcut;}
242c8025 52 void SetMaxZCut(Double_t dz = 0.5){fMaxZCut=dz;}
53 void SetDCACut(Double_t dca=0.1){fDCAcut=dca;}
54 void SetDiffPhiMax(Double_t pm = 0.025){fDiffPhiMax = pm;}
55 void SetMeanPSelTracks(Double_t pGeV=0.875){fMeanPSelTrk = pGeV;}
56 void SetMeanPtSelTracks(Double_t ptGeV=0.630){fMeanPtSelTrk = ptGeV;}
0496a544 57 void SetMeanPPtSelTracks(Double_t fieldTesla);
242c8025 58 void SetMinDCAforPileup(Double_t mindist=0.1) {fDCAforPileup=mindist;}
c238ba33 59 void SetDeltaPhiforPileup(Double_t dphi=0.01) {fDiffPhiforPileup=dphi;}
87104b06 60 void SetPileupAlgo(UShort_t optalgo=1){fPileupAlgo=optalgo;}
242c8025 61 void SetBinSizeR(Double_t siz=0.1){fBinSizeR=siz;}
62 void SetBinSizeZ(Double_t siz=0.8){fBinSizeZ=siz;}
9801e044 63 void SetMaxNumOfClusters(Int_t ncl){fMaxNumOfCl=ncl;}
64 Int_t GetMaxNumOfClusters() const {return fMaxNumOfCl;}
70c95f95 65
66protected:
67 AliITSVertexer3D(const AliITSVertexer3D& vtxr);
68 AliITSVertexer3D& operator=(const AliITSVertexer3D& /* vtxr */);
308c2f7c 69 Int_t FindTracklets(TTree *itsClusterTree, Int_t optCuts);
05d1294c 70 Int_t Prepare3DVertex(Int_t optCuts);
27167524 71 void ResetVert3D();
7340864d 72 void FindPeaks(TH3F* histo, Double_t *peak, Int_t &nOfTracklets, Int_t &nOfTimes);
cd1c2af1 73 void PileupFromZ();
74 void MarkUsedClusters();
75 Int_t RemoveTracklets();
76 void FindOther3DVertices(TTree *itsClusterTree);
70c95f95 77
cd1c2af1 78 enum {kMaxCluPerMod=250};
6a0d56b8 79
f5f6da22 80 TClonesArray fLines; //! array of tracklets
6a0d56b8 81 AliESDVertex fVert3D; // 3D Vertex
242c8025 82 Double_t fCoarseDiffPhiCut; // loose cut on DeltaPhi for RecPoint matching
83 Double_t fFineDiffPhiCut; // tight value of DeltaPhi for RP matching (2nd method)
84 Double_t fCutOnPairs; //cut on distance between pairs of tracklets
85 Double_t fCoarseMaxRCut; // cut on tracklet DCA to Z axis
87104b06 86 Double_t fMaxRCut; // cut on tracklet DCA to beam axis
87 Double_t fMaxRCut2; // cut on tracklet DCA to beam axis - algo2
242c8025 88 Double_t fZCutDiamond; // cut on +-Z of the diamond
89 Double_t fMaxZCut; // cut on Z distance from estimated vertex
90 Double_t fDCAcut; // cut on tracklet to tracklet and tracklet to vertex DCA
91 Double_t fDiffPhiMax; // Maximum delta phi allowed among corr. pixels
92 Double_t fMeanPSelTrk; // GeV, mean P for tracks with dphi<0.01 rad
93 Double_t fMeanPtSelTrk; // GeV, mean Pt for tracks with dphi<0.01 rad
cd1c2af1 94 TBits fUsedCluster; // flag for used clusters in vertex calculation
95 TH1F *fZHisto; //! histogram with coarse z distribution
242c8025 96 Double_t fDCAforPileup; // Minimum DCA to 1st vertex for pileup tracklets
c238ba33 97 Double_t fDiffPhiforPileup; // Cut on delta phi for pileup
242c8025 98 Double_t fBinSizeR; // Histo3D bin size along radius
99 Double_t fBinSizeZ; // Histo3D bin size along z
cd1c2af1 100 UShort_t fPileupAlgo; // Algo for pileup identification
101 // 0->VertexerZ pileup algo
102 // 1->Unused RecPoints algo
9801e044 103 Int_t fMaxNumOfCl; // max number of clusters on L1 or L2
507265fd 104 Bool_t fDoDownScale; // Control downscaling of tracklets in high mult
105 TRandom3 *fGenerForDownScale; // randomnumber generator fordownscaling
6a0d56b8 106
9801e044 107 static const Int_t fgkMaxNumOfClDefault; // Default max number of clusters
108
507265fd 109 ClassDef(AliITSVertexer3D,14);
70c95f95 110
111};
112
113#endif