Trait Project 

pub trait Project {
    // Required methods
    fn forward(&self, xy: &(f64, f64)) -> Result<(f64, f64), &'static str>;
    fn inverse(&self, xy: &(f64, f64)) -> Result<(f64, f64), &'static str>;
    fn a(&self) -> &f64;
    fn lam0(&self) -> &f64;

    // Provided method
    fn project(
        &self,
        xy: &(f64, f64),
        inverse: bool,
    ) -> Result<(f64, f64), &'static str> { ... }
}

Map projection functionality.

Required Methods

fn forward(&self, xy: &(f64, f64)) -> Result<(f64, f64), &'static str>

fn inverse(&self, xy: &(f64, f64)) -> Result<(f64, f64), &'static str>

fn a(&self) -> &f64

fn lam0(&self) -> &f64

Provided Methods

fn project( &self, xy: &(f64, f64), inverse: bool, ) -> Result<(f64, f64), &'static str>

Performs a projection.

For forward transformation (inverse = false), xy is treated as (lambda, phi), where lambda represents longitude and phi represents latitude, both expressed in degrees. The return value should be considered to be (x, y), and both x and y are values in meters.

For inverse transformation (inverse = true), xy is treated as (x, y) and both x and y are values in meters. The return value should be considered to be (lambda, phi), where lambda represents longitude and phi represents latitude, both expressed in degrees.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl Project for grib::projection::Lcc

impl Project for grib::projection::Merc