Struct Datum 

pub struct Datum {
    pub ellipsoid: Ellipsoid,
    pub to_wgs84: DatumToWgs84,
}

A geodetic datum, defined by a reference ellipsoid and its relationship to WGS84.

Fields

ellipsoid: Ellipsoid

The reference ellipsoid.

to_wgs84: DatumToWgs84

Explicit relationship from this datum to WGS84.

Implementations

impl Datum

pub fn is_wgs84_compatible(&self) -> bool

Returns true if this datum is WGS84 or functionally identical (no Helmert shift needed).

pub fn has_known_wgs84_transform(&self) -> bool

Returns true if this datum has a known path to WGS84.

pub fn uses_grid_shift(&self) -> bool

Returns true if this datum’s WGS84 path uses one or more horizontal grids.

pub fn helmert_to_wgs84(&self) -> Option<&HelmertParams>

Return the Helmert parameters for this datum’s path to WGS84, when available.

pub fn approximate_helmert_to(&self, target: &Datum) -> Option<HelmertParams>

pub fn same_datum(&self, other: &Datum) -> bool

Returns true if two datums are the same (same ellipsoid, same Helmert parameters).

Trait Implementations

impl Clone for Datum

fn clone(&self) -> Datum

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Datum

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

Formats the value using the given formatter.