[262] | 1 | #ifndef CIRCLE_H_SEEN
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| 2 | #define CIRCLE_H_SEEN
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| 3 |
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| 4 | #include <math.h>
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| 5 | #include <iostream.h>
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| 6 | #include "vector3d.h"
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| 7 | #include "unitvector.h"
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| 8 | #include "utilgeom.h"
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[470] | 9 | #include "geometry.h"
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[262] | 10 |
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[470] | 11 | class Circle : public Geometry
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[262] | 12 | {
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| 13 |
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| 14 | public:
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| 15 |
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| 16 | Circle();
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| 17 | Circle(double theta, double phi, double aperture);
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| 18 | Circle(double x, double y, double z, double aperture);
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| 19 | Circle(const Vector3d& v, double aperture=M_PI/2.);
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| 20 | Circle(const Circle& c);
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| 21 | virtual ~Circle() {}
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| 22 |
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| 23 | void SetCircle(const UnitVector&, double);
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| 24 | void SetSpinAxis(double theta, double phi);
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| 25 | void SetSpinAxis(const Vector3d&);
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| 26 | void SetSpinAxis(double x, double y, double z);
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| 27 | void SetApertureAngle(double aperture);
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| 28 | void SetApertureAngle(const Circle&);
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| 29 |
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[470] | 30 | // psi contient les 4 valeurs des angles d intersection. -1 si les cercles ne se coupent pas
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[262] | 31 | // voir la numerotation dans le .cc
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[568] | 32 | /* psi contains 4 values of the intersection angles.
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| 33 | -1 if circles do not intersect
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| 34 | psi[0]=psi(i,j,0)
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| 35 | psi[1]=psi(i,j,1)
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| 36 | psi[2]=psi(j,i,0)
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| 37 | psi[3]=psi(j,i,1)
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| 38 | */
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[262] | 39 | bool Intersection(const Circle&, double* psi) const;
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| 40 |
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| 41 | // donne le UnitVector correspondant a une position donnee sur le cercle
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[568] | 42 | /*! Return UnitVector corresponding to a given position donnee on the circle
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| 43 | */
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[470] | 44 | UnitVector ConvToSphere(double psi) const;
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[262] | 45 |
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| 46 | // donne le UnitVector correspondant la tangente au cercle en une position donnee sur le cercle
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[568] | 47 | /*! Return UnitVector corresponding to the tangent to the circle */
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| 48 | // at given position on the circle.
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[262] | 49 | UnitVector TanOnCircle(double psi) const;
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| 50 |
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| 51 | // donne le vecteur tangent dans le plan (xy) a la sphere en une position donnee sur le cercle
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[568] | 52 | /*! Return the vector tangent to the sphere in the plane (xy)
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| 53 | at a given position on the circle.
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| 54 | */
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[262] | 55 | UnitVector EPhi(double psi) const;
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| 56 |
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[470] | 57 | // donne l autre vecteur tangent (orthogonal a EPhi)
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[568] | 58 | /*! Return the other tangent vector( orthogonal to EPhi)--
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| 59 | see previous method
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| 60 | */
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[262] | 61 | UnitVector ETheta(double psi) const;
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| 62 |
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[470] | 63 | // donne l angle de separation dans [0,2Pi] en une position donnee sur le cercle et EPhi
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[568] | 64 | /*! Return separation angle in [0,2Pi] at a given position on the
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| 65 | circle and EPhi
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| 66 | */
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[262] | 67 | double SepAngleTanEPhi02PI(double psi) const;
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| 68 |
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| 69 | double Theta() const {return _spinaxis.Theta();}
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| 70 | double Phi() const {return _spinaxis.Phi();}
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| 71 | double ApertureAngle() const {return _angouv;}
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| 72 | Vector3d Omega() const {return _spinaxis;}
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| 73 | virtual void Print(ostream&) const;
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| 74 | Circle& operator=(const Circle&);
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| 75 | bool operator==(const Circle&) const;
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| 76 | bool operator!=(const Circle&) const;
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| 77 |
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| 78 | private:
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| 79 |
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| 80 | Vector3d _spinaxis;
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| 81 | UnitVector _spinunitaxis;
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| 82 | double _angouv;
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| 83 | double _theta,_phi;
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| 84 | double _x,_y,_z;
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| 85 |
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| 86 | };
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| 87 |
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| 88 | inline ostream& operator<<(ostream& s, const Circle& c)
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| 89 | {
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| 90 | c.Print(s);
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| 91 | return s;
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| 92 | }
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| 93 |
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| 94 | #endif
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