Struct Globe 

pub struct Globe;

Geocentric globe projection using the WGS-84 ellipsoid.

Output coordinates are Earth-centered Earth-fixed style Cartesian meters:

• x: intersects the equator at longitude 0
• y: intersects the equator at longitude 90E
• z: north pole axis

Implementations

impl Globe

pub fn project(geo: &GeoCoord) -> WorldCoord

Project geographic coordinates to globe-centered Cartesian meters.

pub fn unproject(world: &WorldCoord) -> GeoCoord

Inverse-project globe-centered Cartesian meters to geographic coordinates.

pub fn radius() -> f64

Mean Earth radius used for simple scale queries.

Trait Implementations

impl Projection for Globe

fn project(&self, geo: &GeoCoord) -> WorldCoord

Project a geographic coordinate to world space (meters).

fn unproject(&self, world: &WorldCoord) -> GeoCoord

Inverse-project world coordinates back to geographic.

fn scale_factor(&self, _geo: &GeoCoord) -> f64

Local linear scale factor at the given geographic coordinate.

fn projection_bounds(&self) -> GeoBounds

The geographic bounding box of valid input for this projection.