Move angle trigonometric funtions in SphereIterationData

  double *vec_zpv;

public:

  //! \brief Cosine of incident radiation azimuth.

  double cost;

  //! \brief Sine of incident radiation azimuth.

  double sint;

  //! \brief Cosine of incident radiation elevation.

  double cosp;

  //! \brief Sine of incident radiation elevation.

  double sinp;

  //! \brief Cosine of scattered radiation azimuth.

  double costs;

  //! \brief Sine of scattered radiation azimuth.

  double sints;

  //! \brief Cosine of scattered radiation elevation.

  double cosps;

  //! \brief Sine of scattered radiation elevation.

  double sinps;

  //! \brief Vacuum magnitude of wave vector.

  double vk;

  //! \brief Wave number.