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26 //
27 /// \file B2/B2b/include/ChamberParameterisation.hh
28 /// \brief Definition of the B2b::ChamberParameterisation class
29
30 #ifndef B2bChamberParameterisation_h
31 #define B2bChamberParameterisation_h 1
32
33 #include "G4VPVParameterisation.hh"
34 #include "globals.hh"
35
36 class G4VPhysicalVolume;
37 class G4Box;
38
39 // Dummy declarations to get rid of warnings ...
40 class G4Trd;
41 class G4Trap;
42 class G4Cons;
43 class G4Orb;
44 class G4Sphere;
45 class G4Ellipsoid;
46 class G4Torus;
47 class G4Para;
48 class G4Hype;
49 class G4Tubs;
50 class G4Polycone;
51 class G4Polyhedra;
52
53 namespace B2b
54 {
55
56 /// A parameterisation that describes a series of boxes along Z.
57 ///
58 /// The boxes have equal width, & their lengths are a linear equation.
59 /// They are spaced an equal distance apart, starting from given location.
60
61 class ChamberParameterisation : public G4VPVParameterisation
62 {
63 public:
64 ChamberParameterisation(G4int noChambers, G4double startZ, G4double spacing,
65 G4double widthChamber, G4double lengthInitial, G4double lengthFinal);
66
67 ~ChamberParameterisation() override = default;
68
69 void ComputeTransformation(const G4int copyNo, G4VPhysicalVolume* physVol) const override;
70
71 void ComputeDimensions(G4Tubs& trackerLayer, const G4int copyNo,
72 const G4VPhysicalVolume* physVol) const override;
73
74 private: // Dummy declarations to get rid of warnings ...
75 void ComputeDimensions(G4Box&, const G4int, const G4VPhysicalVolume*) const override {}
76 void ComputeDimensions(G4Trd&, const G4int, const G4VPhysicalVolume*) const override {}
77 void ComputeDimensions(G4Trap&, const G4int, const G4VPhysicalVolume*) const override {}
78 void ComputeDimensions(G4Cons&, const G4int, const G4VPhysicalVolume*) const override {}
79 void ComputeDimensions(G4Sphere&, const G4int, const G4VPhysicalVolume*) const override {}
80 void ComputeDimensions(G4Orb&, const G4int, const G4VPhysicalVolume*) const override {}
81 void ComputeDimensions(G4Ellipsoid&, const G4int, const G4VPhysicalVolume*) const override {}
82 void ComputeDimensions(G4Torus&, const G4int, const G4VPhysicalVolume*) const override {}
83 void ComputeDimensions(G4Para&, const G4int, const G4VPhysicalVolume*) const override {}
84 void ComputeDimensions(G4Hype&, const G4int, const G4VPhysicalVolume*) const override {}
85 void ComputeDimensions(G4Polycone&, const G4int, const G4VPhysicalVolume*) const override {}
86 void ComputeDimensions(G4Polyhedra&, const G4int, const G4VPhysicalVolume*) const override {}
87
88 private:
89 G4int fNoChambers;
90 G4double fStartZ;
91 G4double fHalfWidth; // The half-width of each tracker chamber
92 G4double fSpacing; // The distance between the chambers' center
93 G4double fRmaxFirst; // The first half-length
94 G4double fRmaxIncr; // The Increment for the half-length
95 };
96
97 } // namespace B2b
98
99 #endif
100