Struct marlu::pos::xyz::XyzGeocentric

pub struct XyzGeocentric {
    pub x: f64,
    pub y: f64,
    pub z: f64,
}

The geocentric (x,y,z) coordinates of an antenna (a.k.a. tile or station). All units are in metres.

This coordinate system is discussed at length in Interferometry and Synthesis in Radio Astronomy, Third Edition, Section 4: Geometrical Relationships, Polarimetry, and the Measurement Equation.

Fields

x: f64

x-coordinate [meters]

y: f64

y-coordinate [meters]

z: f64

z-coordinate [meters]

Implementations

impl XyzGeocentric

pub fn get_geocentric_vector(
    earth_pos: LatLngHeight
) -> Result<XyzGeocentric, ErfaError>

Get a geocentric coordinate vector with the given geodetic coordinates (longitude, latitude and height). The ellipsoid model is WGS84.

pub fn get_geocentric_vector_mwa() -> Result<XyzGeocentric, ErfaError>

Get a geocentric coordinate vector with the MWA’s location. This function just calls XyzGeocentric::get_geocentric_vector with MWA_LONG_RAD, MWA_LAT_RAD and MWA_HEIGHT_M.

pub fn to_geodetic(
    self,
    earth_pos: LatLngHeight
) -> Result<XyzGeodetic, ErfaError>

Convert a XyzGeocentric coordinate to XyzGeodetic.

pub fn to_geodetic_inner(
    self,
    geocentric_vector: XyzGeocentric,
    sin_longitude: f64,
    cos_longitude: f64
) -> XyzGeodetic

Convert a XyzGeocentric coordinate to XyzGeodetic. This function is less convenient than XyzGeocentric::to_geodetic(), but may be better in tight loops as the arguments to this function don’t need to be uselessly re-calculated.

pub fn to_geodetic_mwa(self) -> Result<XyzGeodetic, ErfaError>

Convert a XyzGeocentric coordinate to XyzGeodetic, using the MWA’s location.

Trait Implementations

impl Clone for XyzGeocentric

fn clone(&self) -> XyzGeocentric

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for XyzGeocentric

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

Formats the value using the given formatter.

impl Default for XyzGeocentric

fn default() -> XyzGeocentric

Returns the “default value” for a type.

impl PartialEq<XyzGeocentric> for XyzGeocentric

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

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

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

This method tests for !=.

impl Copy for XyzGeocentric

impl StructuralPartialEq for XyzGeocentric