SphericalCoordinate.h

#ifndef _SPHERICALCOORDINATE_H_
#define _SPHERICALCOORDINATE_H_
namespace mspass {
namespace utility{
typedef struct {
        double radius;
        double theta;
        double phi;
} SphericalCoordinate;
SphericalCoordinate UnitVectorToSpherical(const double nu[3]);
double *SphericalToUnitVector(const SphericalCoordinate& sc);
double rad(const double theta_deg);
double deg(const double theta_rad);
} // end utility namespace
} // end namespace mspass declaration
#endif