| 1 | #ifndef MARS_MMirror
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| 2 | #define MARS_MMirror
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| 3 |
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| 4 | #ifndef ROOT_TRotation
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| 5 | #include <TRotation.h>
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| 6 | #endif
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| 7 |
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| 8 | class MQuaternion;
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| 9 |
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| 10 | class MMirror : public TObject
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| 11 | {
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| 12 | friend void operator/=(MQuaternion &, const MMirror &);
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| 13 | friend void operator*=(MQuaternion &, const MMirror &);
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| 14 | friend void operator-=(MQuaternion &, const MMirror &);
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| 15 | friend void operator+=(MQuaternion &, const MMirror &);
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| 16 |
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| 17 | private:
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| 18 | TVector3 fPos;
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| 19 | TVector3 fNorm; // faster without
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| 20 |
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| 21 | TRotation fTilt;
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| 22 |
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| 23 | // ----- Spherical mirror data members -----
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| 24 | Double_t fFocalLength;
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| 25 | Double_t fSigmaPSF;
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| 26 |
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| 27 | Int_t fShape; // Spherical=0, Parabolic=1
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| 28 |
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| 29 | // MMirror *fNeighbors[964];
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| 30 |
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| 31 | public:
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| 32 | MMirror() : fSigmaPSF(-1), fShape(0)
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| 33 | {
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| 34 | }
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| 35 |
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| 36 | // ----- Mirror basic functions -----
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| 37 | TVector2 operator-(const MQuaternion &q) const;// { return TVector2(X()-q.X(), Y()-q.Y()); }
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| 38 | TVector2 operator-(const MMirror &m) const;// { return TVector2(X()-m.X(), Y()-m.Y()); }
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| 39 |
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| 40 | void SetSigmaPSF(Double_t psf) { fSigmaPSF = psf; }
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| 41 | void SetFocalLength(Double_t f) { fFocalLength = f; }
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| 42 | void SetPosition(const TVector3 &v) { fPos = v; }
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| 43 | void SetNorm(const TVector3 &n) {
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| 44 | fNorm = n;
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| 45 |
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| 46 | fTilt = TRotation();
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| 47 | // Can be simplified?? rotate the mirror along
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| 48 | // perpendicular to its normal projected to x/y and z
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| 49 | // by its "zenith angle"
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| 50 | fTilt.Rotate(-n.Theta(), TVector3(-n.Y(), n.X(), 0));
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| 51 | }
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| 52 | void SetShape(Char_t c);
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| 53 |
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| 54 | void SetZ(Double_t z) { fPos.SetZ(z); }
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| 55 |
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| 56 | Double_t X() const { return fPos.X(); }
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| 57 | Double_t Y() const { return fPos.Y(); }
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| 58 |
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| 59 | TVector2 GetPosXY() const { return fPos.XYvector(); }
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| 60 | const TVector3 &GetPos() const { return fPos; }
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| 61 | const TVector3 &GetNorm() const { return fNorm; }
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| 62 |
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| 63 | Double_t GetFocalLength() const { return fFocalLength; }
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| 64 | Double_t GetSigmaPSF() const { return fSigmaPSF; }
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| 65 |
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| 66 | Double_t GetDist() const { return fPos.Perp(); }
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| 67 |
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| 68 | virtual Double_t GetMaxR() const=0;// { return TMath::Max(fMaxRX, fMaxRY); }
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| 69 | virtual Double_t GetA() const=0;// { return TMath::Max(fMaxRX, fMaxRY); }
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| 70 |
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| 71 | TVector3 SimPSF(const TVector3 &n, Double_t F, Double_t psf) const;
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| 72 | TVector3 SimPSF(const TVector3 &n) const
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| 73 | {
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| 74 | return SimPSF(n, fFocalLength, fSigmaPSF/10); // Convert from mm to cm
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| 75 | }
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| 76 |
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| 77 | Bool_t ExecuteMirror(MQuaternion &p, MQuaternion &u) const;
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| 78 |
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| 79 | // ----- Basic function for parabolic mirror -----
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| 80 | Bool_t ExecuteReflection(MQuaternion &p, MQuaternion &u) const;
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| 81 |
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| 82 | // ----- Mirror specialized functions -----
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| 83 |
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| 84 | virtual Bool_t HasHit(const MQuaternion &p) const=0;
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| 85 | virtual Bool_t CanHit(const MQuaternion &p) const=0;
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| 86 |
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| 87 | virtual Int_t ReadM(const TObjArray &tok)=0;
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| 88 |
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| 89 | // TObject
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| 90 | void Print(Option_t *o) const;
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| 91 |
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| 92 | /*
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| 93 | Bool_t IsSortable() const { return kTRUE; }
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| 94 | Int_t Compare(const TObject *obj) const
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| 95 | {
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| 96 | MMirror &m = (MMirror&)*obj;
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| 97 | return m.fPos.Mag2()<fPos.Mag2();
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| 98 | }
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| 99 | */
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| 100 | ClassDef(MMirror, 2) // Base class to describe a mirror
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| 101 | };
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| 102 |
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| 103 | #endif
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