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50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
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#ifndef G3VEC_H
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#define G3VEC_H
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#include <cmath>
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class G3Vec {
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public:
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G3Vec();
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G3Vec(double x, double y, double z);
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~G3Vec();
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void SetVectorCartesian(double x, double y, double z);
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void SetVectorSpherical(double r, double theta, double phi);
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inline double GetX() const { return m_data[0]; };
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inline double GetY() const { return m_data[1]; };
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inline double GetZ() const { return m_data[2]; };
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inline double GetRho() const { return std::sqrt(std::pow(m_data[0], 2.0) + std::pow(m_data[1], 2.0)); };
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inline double GetR() const { return std::sqrt(std::pow(m_data[0], 2.0) + std::pow(m_data[1], 2.0) + std::pow(m_data[2], 2.0)); }
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inline double GetTheta() const { return Atan2(GetRho(), GetZ()); };
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inline double GetPhi() const {
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double phi = Atan2(GetY(), GetX());
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if(phi < 0) phi += M_PI*2.0;
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return phi;
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};
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inline const double operator[](int index) const { return index>2 || index<0 ? 0.0 : m_data[index]; };
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inline G3Vec& operator=(const G3Vec& rhs) { SetVectorCartesian(rhs.GetX(), rhs.GetY(), rhs.GetZ()); return *this; };
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inline G3Vec operator+(const G3Vec& rhs) const { return G3Vec(this->GetX()+rhs.GetX(), this->GetY()+rhs.GetY(), this->GetZ()+rhs.GetZ()); };
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inline G3Vec operator-(const G3Vec& rhs) const { return G3Vec(this->GetX()-rhs.GetX(), this->GetY()-rhs.GetY(), this->GetZ()-rhs.GetZ()); };
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double Dot(const G3Vec& rhs) const;
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G3Vec Cross(const G3Vec& rhs) const;
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private:
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inline double Atan2(double y, double x) const {
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if(x != 0.0) return std::atan2(y, x);
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else if(y > 0.0) return M_PI/2.0;
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else if(y < 0.0) return -M_PI/2.0;
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else return 0.0;
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}
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double m_data[3];
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};
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#endif
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