commented define _ClusterTopology_ - to be used only for the special productions
[u/mrichter/AliRoot.git] / ITS / AliITSgeomTGeo.h
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6ddbe5ad 1#ifndef ALIITSGEOMTGEO_H
2#define ALIITSGEOMTGEO_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6/////////////////////////////////////////////////////////////////////////
7// AliITSgeomTGeo is a simple interface class to TGeoManager //
8// It is used in the simulation and reconstruction in order to //
9// query the TGeo ITS geometry //
10// //
11// author - cvetan.cheshkov@cern.ch //
12// 15/02/2007 //
13/////////////////////////////////////////////////////////////////////////
14
15#include <TObject.h>
16#include <TGeoMatrix.h>
17
18class TGeoPNEntry;
19
20class AliITSgeomTGeo : public TObject {
21
22 public:
23
24 AliITSgeomTGeo() { } // Default constructor
25 virtual ~AliITSgeomTGeo() { } // Destructor
26
9172de7b 27 // This function returns the total number of ITS modules
28 static Int_t GetNModules() {return fgkNModules;}
6ddbe5ad 29 // This function returns the number of detectors/ladder for a given layer
30 static Int_t GetNDetectors(Int_t lay) {return fgkNDetectors[lay-1];}
31 // This function returns the number of ladders for a given layer
32 static Int_t GetNLadders(Int_t lay) {return fgkNLadders[lay-1];}
33 // This function returns the number of layers
34 static Int_t GetNLayers() {return kNLayers;}
35
36 // Two methods to map module index to layer,ladder,detector indeces
37 static Int_t GetModuleIndex(Int_t lay,Int_t lad,Int_t det);
38 static Bool_t GetModuleId(Int_t index,Int_t &lay,Int_t &lad,Int_t &det);
39
40 static const char *GetSymName(Int_t index); // Get TGeoPNEntry symbolic name
41 static const char *GetSymName(Int_t lay,Int_t lad,Int_t det)
42 { return GetSymName(GetModuleIndex(lay,lad,det)); }
43
44 // This function returns a pointer to the TGeoHMatrix (local->global)
45 // of a given module index
46 static TGeoHMatrix* GetMatrix(Int_t index);
47 static TGeoHMatrix* GetMatrix(Int_t lay,Int_t lad,Int_t det)
48 { return GetMatrix(GetModuleIndex(lay,lad,det)); }
49
50 static Bool_t GetTranslation(Int_t index, Double_t t[3]);
51 static Bool_t GetTranslation(Int_t lay,Int_t lad,Int_t det, Double_t t[3])
52 { return GetTranslation(GetModuleIndex(lay,lad,det),t); }
53
54 static Bool_t GetRotation(Int_t index, Double_t r[9]);
55 static Bool_t GetRotation(Int_t lay,Int_t lad,Int_t det, Double_t r[9])
56 { return GetRotation(GetModuleIndex(lay,lad,det),r); }
57
58 // This function returns a pointer to the original TGeoHMatrix (local->global)
59 // for a specific module index
60 static Bool_t GetOrigMatrix(Int_t index, TGeoHMatrix &m);
61 static Bool_t GetOrigMatrix(Int_t lay,Int_t lad,Int_t det, TGeoHMatrix &m)
62 { return GetOrigMatrix(GetModuleIndex(lay,lad,det),m); }
63
64 static Bool_t GetOrigTranslation(Int_t index, Double_t t[3]);
65 static Bool_t GetOrigTranslation(Int_t lay,Int_t lad,Int_t det, Double_t t[3])
66 { return GetOrigTranslation(GetModuleIndex(lay,lad,det),t); }
67
68 static Bool_t GetOrigRotation(Int_t index, Double_t r[9]);
69 static Bool_t GetOrigRotation(Int_t lay,Int_t lad,Int_t det, Double_t r[9])
70 { return GetOrigRotation(GetModuleIndex(lay,lad,det),r); }
71
72 static const TGeoHMatrix* GetTracking2LocalMatrix(Int_t index);
73 static const TGeoHMatrix* GetTracking2LocalMatrix(Int_t lay,Int_t lad,Int_t det)
74 { return GetTracking2LocalMatrix(GetModuleIndex(lay,lad,det)); }
75
76 static Bool_t GetTrackingMatrix(Int_t index, TGeoHMatrix &m);
77 static Bool_t GetTrackingMatrix(Int_t lay,Int_t lad,Int_t det, TGeoHMatrix &m)
78 { return GetTrackingMatrix(GetModuleIndex(lay,lad,det),m); }
79
633a55c0 80 static Bool_t LocalToGlobal(Int_t index, const Double_t *loc, Double_t *glob);
81 static Bool_t LocalToGlobal(Int_t lay, Int_t lad, Int_t det,
82 const Double_t *loc, Double_t *glob)
83 { return LocalToGlobal(GetModuleIndex(lay,lad,det), loc, glob);}
84
85 static Bool_t GlobalToLocal(Int_t index, const Double_t *glob, Double_t *loc);
86 static Bool_t GlobalToLocal(Int_t lay, Int_t lad, Int_t det,
87 const Double_t *glob, Double_t *loc)
88 { return GlobalToLocal(GetModuleIndex(lay,lad,det), glob, loc);}
89
90 static Bool_t LocalToGlobalVect(Int_t index, const Double_t *loc, Double_t *glob);
91 static Bool_t GlobalToLocalVect(Int_t index, const Double_t *glob, Double_t *loc);
92
6ddbe5ad 93 enum {kNLayers = 6}; // The number of layers.
94
69cf076d 95 private:
96
6ddbe5ad 97 static Bool_t GetLayer(Int_t index,Int_t &lay,Int_t &index2);
98 static TGeoPNEntry* GetPNEntry(Int_t index);
99
100 AliITSgeomTGeo(const AliITSgeomTGeo &geom); // Copy constructor
101 AliITSgeomTGeo& operator=(const AliITSgeomTGeo &geom);// Assignment operator
102
103 static const Int_t fgkNModules; // The total number of modules
104 static const Int_t fgkNLadders[kNLayers]; // Array of the number of ladders/layer(layer)
105 static const Int_t fgkNDetectors[kNLayers];// Array of the number of detector/ladder(layer)
106
107 ClassDef(AliITSgeomTGeo, 0) // ITS geometry based on TGeo
108};
109
110#endif