Fixes for bug #52499: Field polarities inconsistiency
[u/mrichter/AliRoot.git] / STEER / AliCluster.h
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87594435 1#ifndef ALICLUSTER_H
2#define ALICLUSTER_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6//-------------------------------------------------------------------------
75fb37cc 7// Class AliCluster
8// This is the future base for managing the clusters in barrel detectors.
9// It is fully interfaced with the ROOT geometrical modeller TGeo.
10// Each cluster contains XYZ coordinates in the local tracking c.s. and
11// the unique ID of the sensitive detector element which continas the
12// cluster. The coordinates in global c.s. are computed using the interface
13// to TGeo and will be not overwritten by the derived sub-detector cluster
14// classes.
15//
16// cvetan.cheshkov@cern.ch & jouri.belikov@cern.ch 5/3/2007
87594435 17//-------------------------------------------------------------------------
18
19#include <TObject.h>
20
75fb37cc 21class TGeoHMatrix;
22class TGeoPNEntry;
23
87594435 24class AliCluster : public TObject {
75fb37cc 25 public:
375f676a 26 enum {
27 kUsed = BIT(14),
28 kShared = BIT(15)
29 };
30
87594435 31 AliCluster();
75fb37cc 32 AliCluster(UShort_t volId, const Float_t *hit, Float_t x = 0, Float_t sigyz = 0, const Int_t *lab = NULL);
33 AliCluster(UShort_t volId,
34 Float_t x, Float_t y, Float_t z,
35 Float_t sy2, Float_t sz2, Float_t syz,
36 const Int_t *lab = NULL);
37 AliCluster(const AliCluster& cluster);
38 AliCluster &operator=(const AliCluster& cluster);
be9c5115 39 virtual ~AliCluster() {;}
75fb37cc 40
41 Int_t GetLabel(Int_t i) const {return fTracks[i];}
42 Float_t GetX() const {return fX;}
43 Float_t GetY() const {return fY;}
44 Float_t GetZ() const {return fZ;}
45 Float_t GetSigmaY2() const {return fSigmaY2;}
46 Float_t GetSigmaZ2() const {return fSigmaZ2;}
47 Float_t GetSigmaYZ() const {return fSigmaYZ;}
48 UShort_t GetVolumeId() const {return fVolumeId;}
49
375f676a 50 void IncreaseClusterUsage() { if (TestBit(kUsed)) SetBit(kShared); else SetBit(kUsed); }
51 Bool_t IsClusterUsed() const { return TestBit(kUsed); }
52 Bool_t IsClusterShared() const { return TestBit(kShared); }
53
b8f166bb 54 virtual void Use(Int_t = 0) {;}
be9c5115 55
75fb37cc 56 Bool_t GetGlobalXYZ(Float_t xyz[3]) const;
39d4ae58 57 virtual Bool_t GetGlobalCov(Float_t cov[6]) const;
75fb37cc 58 Bool_t GetXRefPlane(Float_t &xref) const;
87594435 59
75fb37cc 60 Bool_t Misalign();
61
62 void SetLabel(Int_t lab,Int_t i)
63 { if (i>=0 && i<3) fTracks[i] = lab;}
64 void SetX(Float_t x) {fX = x;}
65 void SetY(Float_t y) {fY = y;}
66 void SetZ(Float_t z) {fZ = z;}
67 void SetSigmaY2(Float_t sigy2) {fSigmaY2 = sigy2;}
68 void SetSigmaZ2(Float_t sigz2) {fSigmaZ2 = sigz2;}
00b554f2 69 void SetSigmaYZ(Float_t sigyz) {fSigmaYZ = sigyz;};
75fb37cc 70 void SetVolumeId(UShort_t id) {fVolumeId = id;}
87594435 71
75fb37cc 72 protected:
87594435 73
75fb37cc 74 const TGeoHMatrix* GetTracking2LocalMatrix() const;
39d4ae58 75 TGeoHMatrix* GetMatrix(Bool_t original = kFALSE) const;
75fb37cc 76
77 private:
78
75fb37cc 79 Int_t fTracks[3];//MC labels
80 Float_t fX; // X of the cluster in the tracking c.s.
81 Float_t fY; // Y of the cluster in the tracking c.s.
82 Float_t fZ; // Z of the cluster in the tracking c.s.
83 Float_t fSigmaY2; // Sigma Y square of cluster
84 Float_t fSigmaZ2; // Sigma Z square of cluster
85 Float_t fSigmaYZ; // Non-diagonal element of cov.matrix
86 UShort_t fVolumeId; // Volume ID of the detector element
87 Bool_t fIsMisaligned; // Cluster was misagned or not?
88
89 ClassDef(AliCluster,3) // Barrel detectors cluster
90};
91
92#endif