Struct marlu::pos::enh::ENH

pub struct ENH {
    pub e: f64,
    pub n: f64,
    pub h: f64,
}

East, North and Height coordinates.

Fields

e: f64

East [metres]

n: f64

North [metres]

h: f64

Height [metres]

Implementations

impl ENH

pub fn to_xyz(self, latitude_rad: f64) -> XyzGeodetic

Convert coords in local topocentric East, North, Height units to ‘local’ XyzGeodetic units. Local means Z points north, X points through the equator from the geocenter along the local meridian and Y is East. This is like the absolute system except that zero longitude is now the local meridian rather than prime meridian. Latitude is geodetic, in radians. This is what you want for constructing the local antenna positions in a UVFITS antenna table.

Taken from the third edition of Interferometry and Synthesis in Radio Astronomy, chapter 4: Geometrical Relationships, Polarimetry, and the Measurement Equation.

pub fn to_xyz_inner(self, sin_latitude: f64, cos_latitude: f64) -> XyzGeodetic

Convert coords in local topocentric East, North, Height units to ‘local’ XyzGeodetic units. See ENH::to_xyz() for more information. This function is less convenient than ENH::to_xyz(), but is slightly more efficient because the caller can prevent needless sin and cos calculations.

pub fn to_xyz_mwa(self) -> XyzGeodetic

Convert ENH coordinates to XyzGeodetic for the MWA’s latitude.

Trait Implementations

impl Clone for ENH

fn clone(&self) -> ENH

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ENH

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

Formats the value using the given formatter.

impl Default for ENH

fn default() -> ENH

Returns the “default value” for a type.

impl Copy for ENH