Struct Direction 

pub(crate) struct Direction<const N: usize> {
    pub(crate) k: Jet<N>,
    pub(crate) transverse: Jet<N>,
    pub(crate) xy: [Jet<N>; 2],
}

The direction of a wavevector (kx, ky, kz) as jets in its components: slots 0, 1 and 2 hold the derivatives with respect to kx, ky and kz (only the first N are kept).

Fields

k: Jet<N>

The wavenumber k = sqrt(kx^2 + ky^2 + kz^2).

transverse: Jet<N>

The transverse norm sqrt(kx^2 + ky^2), which is k sin(theta).

xy: [Jet<N>; 2]

The unit transverse direction (kx, ky) / transverse, which is (cos phi, sin phi); zero on the z axis.

Implementations

impl<const N: usize> Direction<N>

pub(crate) fn new(vector: [Complex; 3]) -> Result<Self>

The direction of vector; see wavenumbers for the errors.

pub(crate) fn from_parts( vector: [Complex; 3], k: Complex, transverse: Complex, xy: [Complex; 2], ) -> Result<Self>

The direction from the values wavenumbers returns. On the z axis the transverse direction has no derivative, so N > 0 gives an error there.