src/CircleZ.h

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#ifndef CircleZ_H
#define CircleZ_H

#include "vector3.h"

class CircleZ {
public:
    CircleZ(double radius, double z)
        : radius_(radius), z_(z)
    { }
    mesh::Vector3 operator()(double phi) const {
        return mesh::Vector3(radius_ * ::cos(phi), radius_ * ::sin(phi), z_);
    }
    mesh::Vector3 deriv(double phi) const {
        return mesh::Vector3(-radius_ * ::sin(phi), radius_ * ::cos(phi), 0.0);
    }
private:
    double radius_;
    double z_;
};

#endif

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