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 | // MMirror *fNeighbors[964];
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28 |
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29 | public:
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30 | MMirror() : fSigmaPSF(-1)
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31 | {
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32 | }
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33 |
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34 | // ----- Mirror basic functions -----
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35 | TVector2 operator-(const MQuaternion &q) const;// { return TVector2(X()-q.X(), Y()-q.Y()); }
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36 | TVector2 operator-(const MMirror &m) const;// { return TVector2(X()-m.X(), Y()-m.Y()); }
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37 |
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38 | void SetSigmaPSF(Double_t psf) { fSigmaPSF = psf; }
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39 | void SetFocalLength(Double_t f) { fFocalLength = f; }
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40 | void SetPosition(const TVector3 &v) { fPos = v; }
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41 | void SetNorm(const TVector3 &n) {
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42 | fNorm = n;
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43 |
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44 | fTilt = TRotation();
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45 | // Can be simplified?? rotate the mirror along
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46 | // perpendicular to its normal projected to x/y and z
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47 | // by its "zenith angle"
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48 | fTilt.Rotate(-n.Theta(), TVector3(-n.Y(), n.X(), 0));
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49 | }
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50 |
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51 | Double_t X() const { return fPos.X(); }
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52 | Double_t Y() const { return fPos.Y(); }
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53 |
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54 | TVector2 GetPosXY() const { return fPos.XYvector(); }
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55 | const TVector3 &GetPos() const { return fPos; }
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56 | const TVector3 &GetNorm() const { return fNorm; }
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57 |
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58 | Double_t GetFocalLength() const { return fFocalLength; }
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59 | Double_t GetSigmaPSF() const { return fSigmaPSF; }
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60 |
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61 | Double_t GetDist() const { return fPos.Perp(); }
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62 |
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63 | virtual Double_t GetMaxR() const=0;// { return TMath::Max(fMaxRX, fMaxRY); }
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64 |
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65 | TVector3 SimPSF(const TVector3 &n, Double_t F, Double_t psf) const;
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66 |
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67 | Bool_t ExecuteMirror(MQuaternion &p, MQuaternion &u) const;
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68 |
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69 | // ----- Basic function for parabolic mirror -----
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70 | Bool_t ExecuteReflection(MQuaternion &p, MQuaternion &u) const;
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71 |
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72 | // ----- Mirror specialized functions -----
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73 |
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74 | virtual Bool_t HasHit(const MQuaternion &p) const=0;
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75 | virtual Bool_t CanHit(const MQuaternion &p) const=0;
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76 |
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77 | virtual Int_t ReadM(const TObjArray &tok)=0;
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78 |
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79 | // TObject
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80 | void Print(Option_t *o) const;
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81 |
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82 | /*
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83 | Bool_t IsSortable() const { return kTRUE; }
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84 | Int_t Compare(const TObject *obj) const
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85 | {
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86 | MMirror &m = (MMirror&)*obj;
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87 | return m.fPos.Mag2()<fPos.Mag2();
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88 | }
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89 | */
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90 | ClassDef(MMirror, 1) // Base class to describe a mirror
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91 | };
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92 |
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93 | #endif
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