Struct ThomasDirect 

pub struct ThomasDirect {
    pub spheroid: Spheroid,
    pub second_order: bool,
}

Forsyth–Andoyer–Lambert direct approximation with Thomas’s second-order terms.

Inputs and output angles are radians. Mirrors formula::thomas_direct<CT, true> from formulas/thomas_direct.hpp:39-238.

Fields

spheroid: Spheroid

Reference ellipsoid.

second_order: bool

Include Thomas’s second-order correction terms.

Implementations

impl ThomasDirect

pub const WGS84: Self

Second-order Thomas direct on WGS84.

pub fn apply( &self, lon1: f64, lat1: f64, distance: f64, azimuth12: f64, ) -> DirectResult

Solve the direct geodesic problem.

Mirrors thomas_direct::apply from formulas/thomas_direct.hpp:66-205, including its southward-azimuth vertical flip and longitude normalization.

Trait Implementations

impl Clone for ThomasDirect

fn clone(&self) -> ThomasDirect

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ThomasDirect

impl Debug for ThomasDirect

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

Formats the value using the given formatter.

impl Default for ThomasDirect

fn default() -> Self

Returns the “default value” for a type.

impl<P> DestinationStrategy<P> for ThomasDirect

where P: Point<Scalar = f64>, P::Cs: HasAngularUnits, <P::Cs as CoordinateSystem>::Family: SameAs<GeographicFamily>,

Available on crate feature std only.

type Output = Point<f64, 2, <P as Point>::Cs>

Destination point type.

fn destination(&self, origin: &P, bearing: f64, distance: f64) -> Self::Output

Compute the destination. bearing is measured clockwise from north in radians; distance uses the strategy’s radius or spheroid units.