Struct KarneyDirect 

pub struct KarneyDirect {
    pub spheroid: Spheroid,
}

Karney’s eighth-order direct geodesic formula.

Given a longitude/latitude, distance, and initial azimuth, computes the destination and final azimuth. Inputs and outputs are radians; distance uses the spheroid radius unit. Mirrors formula::karney_direct<CT, ..., 8> from formulas/karney_direct.hpp:52-255.

Fields

spheroid: Spheroid

Reference ellipsoid.

Implementations

impl KarneyDirect

pub const WGS84: Self

Eighth-order Karney direct on WGS84.

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

Solve the direct geodesic problem.

Mirrors karney_direct::apply at formulas/karney_direct.hpp:76-253. The Rust calculation stays in radians instead of temporarily converting angles to degrees; both forms evaluate the same trigonometric quantities, while the final longitude is normalized identically.

Trait Implementations

impl Clone for KarneyDirect

fn clone(&self) -> KarneyDirect

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for KarneyDirect

impl Debug for KarneyDirect

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

Formats the value using the given formatter.

impl Default for KarneyDirect

fn default() -> Self

Returns the “default value” for a type.

impl<P> DestinationStrategy<P> for KarneyDirect

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.