1 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
2 * See cxx source for full Copyright notice */
7 /// \class AliMUONGeometryMisAligner
8 /// \brief Class for misalignment of geometry transformations
10 // Authors: Bruce Becker, Javier Castillo
13 #ifndef ALI_MUON_GEOMETRY_MIS_ALIGNER_H
14 #define ALI_MUON_GEOMETRY_MIS_ALIGNER_H
18 class AliMUONGeometryTransformer;
23 class AliMUONGeometryMisAligner:public TObject
26 AliMUONGeometryMisAligner(Double_t cartXMisAligM, Double_t cartXMisAligW, Double_t cartYMisAligM, Double_t cartYMisAligW, Double_t angMisAligM, Double_t angMisAligW);
27 AliMUONGeometryMisAligner(Double_t cartMisAligM, Double_t cartMisAligW, Double_t angMisAligM, Double_t angMisAligW);
28 AliMUONGeometryMisAligner(Double_t cartMisAligW, Double_t angMisAligW);
29 AliMUONGeometryMisAligner();
30 virtual ~AliMUONGeometryMisAligner();
32 //_________________________________________________________________
35 // return a misaligned geometry obtained from the existing one.
36 AliMUONGeometryTransformer* MisAlign(const AliMUONGeometryTransformer* transformer,
37 Bool_t verbose = kFALSE);
39 /// Set cartesian displacement parameters different along x, y
40 void SetCartMisAlig(Double_t xmean, Double_t xwidth, Double_t ymean, Double_t ywidth, Double_t zmean = 0., Double_t zwidth = 0.)
41 {fDetElemMisAlig[0][0] = xmean; fDetElemMisAlig[0][1] = xwidth; fDetElemMisAlig[1][0] = ymean; fDetElemMisAlig[1][1] = ywidth; fDetElemMisAlig[2][0] = zmean; fDetElemMisAlig[2][1] = zwidth; }
43 /// Set cartesian displacement parameters, the same along x, y
44 void SetCartMisAlig(Double_t mean, Double_t width)
45 {fDetElemMisAlig[0][0] = mean; fDetElemMisAlig[0][1] = width; fDetElemMisAlig[1][0] = mean; fDetElemMisAlig[1][1] = width;}
47 /// Set angular displacement
48 void SetAngMisAlig(Double_t zmean, Double_t zwidth, Double_t xmean = 0., Double_t xwidth = 0., Double_t ymean = 0., Double_t ywidth = 0.)
49 {fDetElemMisAlig[3][0] = xmean; fDetElemMisAlig[3][1] = xwidth; fDetElemMisAlig[4][0] = ymean; fDetElemMisAlig[4][1] = ywidth; fDetElemMisAlig[5][0] = zmean; fDetElemMisAlig[5][1] = zwidth;}
51 /// Set cartesian displacement (Kept for backward compatibility)
52 void SetMaxCartMisAlig(Double_t width)
53 {fDetElemMisAlig[0][0] = 0.0; fDetElemMisAlig[0][1] = width; fDetElemMisAlig[1][0] = 0.0; fDetElemMisAlig[1][1] = width;}
55 /// Set angular displacement (Kept for backward compatibility)
56 void SetMaxAngMisAlig(Double_t width)
57 {fDetElemMisAlig[5][0] = 0.0; fDetElemMisAlig[5][1] = width;}
59 void SetXYAngMisAligFactor(Double_t factor);
61 void SetZCartMisAligFactor(Double_t factor);
63 /// Set option for gaussian distribution
64 void SetUseGaus(Bool_t usegaus)
65 {fUseGaus=usegaus; fUseUni=!usegaus;}
67 /// Set option for uniform distribution
68 void SetUseUni(Bool_t useuni)
69 {fUseGaus=!useuni; fUseUni=useuni;}
71 /// Set module (half chambers) cartesian displacement parameters
72 void SetModuleCartMisAlig(Double_t xmean, Double_t xwidth, Double_t ymean, Double_t ywidth, Double_t zmean, Double_t zwidth)
73 {fModuleMisAlig[0][0] = xmean; fModuleMisAlig[0][1] = xwidth; fModuleMisAlig[1][0] = ymean; fModuleMisAlig[1][1] = ywidth; fModuleMisAlig[2][0] = zmean; fModuleMisAlig[2][1] = zwidth;}
75 /// Set module (half chambers) cartesian displacement parameters
76 void SetModuleAngMisAlig(Double_t xmean, Double_t xwidth, Double_t ymean, Double_t ywidth, Double_t zmean, Double_t zwidth)
77 {fModuleMisAlig[3][0] = xmean; fModuleMisAlig[3][1] = xwidth; fModuleMisAlig[4][0] = ymean; fModuleMisAlig[4][1] = ywidth; fModuleMisAlig[5][0] = zmean; fModuleMisAlig[5][1] = zwidth;}
81 AliMUONGeometryMisAligner(const AliMUONGeometryMisAligner & right);
83 AliMUONGeometryMisAligner & operator =(const AliMUONGeometryMisAligner &right);
87 // return a misaligned transformation
88 TGeoCombiTrans MisAlignDetElem(const TGeoCombiTrans& transform) const;
89 TGeoCombiTrans MisAlignModule(const TGeoCombiTrans& transform) const;
90 void GetUniMisAlign(Double_t cartMisAlig[3], Double_t angMisAlig[3], const Double_t lParMisAlig[6][2]) const;
91 void GetGausMisAlign(Double_t cartMisAlig[3], Double_t angMisAlig[3], const Double_t lParMisAlig[6][2]) const;
93 Bool_t fUseUni; ///< use uniform distribution for misaligmnets
94 Bool_t fUseGaus; ///< use gaussian distribution for misaligmnets
95 Double_t fDetElemMisAlig[6][2]; ///< Mean and width of the displacements of the detection elements along x,y,z (translations) and about x,y,z (rotations)
96 Double_t fModuleMisAlig[6][2]; ///< Mean and width of the displacements of the modules along x,y,z (translations) and about x,y,z (rotations)
98 Double_t fXYAngMisAligFactor; ///< factor (<1) to apply to angular misalignment range since range of motion is restricted out of the xy plane
99 Double_t fZCartMisAligFactor; ///< factor (<1) to apply to cartetian misalignment range since range of motion is restricted in z direction
100 TRandom *fDisplacementGenerator; ///< random number generator for the displacements
102 ClassDef(AliMUONGeometryMisAligner,3) // Geometry parametrisation
105 #endif //ALI_MUON_GEOMETRY_MIS_ALIGNER_H