Struct marlu::pos::uvw::UVW

pub struct UVW {
    pub u: f64,
    pub v: f64,
    pub w: f64,
}

The (u,v,w) coordinates of a baseline. All units are in terms of wavelength, with units of metres.

Fields

u: f64

u coordinate [meters]

v: f64

v coordinate [meters]

w: f64

w coordinate [meters]

Implementations

impl UVW

pub fn from_xyz(xyz: XyzGeodetic, phase_centre: HADec) -> UVW

Convert an XyzGeodetic to UVW, given the phase centre.

This is Equation 4.1 of: Interferometry and Synthesis in Radio Astronomy, Third Edition, Section 4: Geometrical Relationships, Polarimetry, and the Measurement Equation.

pub fn from_xyz_inner(
    xyz: XyzGeodetic,
    s_ha: f64,
    c_ha: f64,
    s_dec: f64,
    c_dec: f64
) -> UVW

Convert an XyzGeodetic to UVW, given the phase centre. This function is less convenient than UVW::from_xyz(), but may be better in tight loops as the sin and cos of the phase centre don’t need to be uselessly re-calculated.

This is Equation 4.1 of: Interferometry and Synthesis in Radio Astronomy, Third Edition, Section 4: Geometrical Relationships, Polarimetry, and the Measurement Equation.

Trait Implementations

impl Clone for UVW

fn clone(&self) -> UVW

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UVW

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for UVW

fn default() -> UVW

Returns the “default value” for a type.

impl Div<f64> for UVW

type Output = Self

The resulting type after applying the / operator.

fn div(self, rhs: f64) -> Self

Performs the / operation.

impl Mul<f64> for UVW

type Output = Self

The resulting type after applying the * operator.

fn mul(self, rhs: f64) -> Self

Performs the * operation.

impl PartialEq<UVW> for UVW

fn eq(&self, other: &UVW) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &UVW) -> bool

This method tests for !=.

impl Sub<UVW> for UVW

type Output = Self

The resulting type after applying the - operator.

fn sub(self, rhs: Self) -> Self

Performs the - operation.

impl Copy for UVW

impl StructuralPartialEq for UVW