Trait LatLons

Source

pub trait LatLons {
    type Iter<'a>: Iterator<Item = (f32, f32)>
       where Self: 'a;

    // Required method
    fn latlons_unchecked<'a>(&'a self) -> Result<Self::Iter<'a>, GribError>;

    // Provided method
    fn latlons<'a>(
        &'a self,
    ) -> Result<Map<Self::Iter<'a>, fn((f32, f32)) -> (f32, f32)>, GribError> { ... }
}

Expand description

A functionality to generate an iterator over latitude/longitude of grid points.

Required Associated Types§

Source

type Iter<'a>: Iterator<Item = (f32, f32)> where Self: 'a

Required Methods§

Source

fn latlons_unchecked<'a>(&'a self) -> Result<Self::Iter<'a>, GribError>

Computes and returns an iterator over latitudes and longitudes of grid points in degrees. Unlike the return values from LatLons::latlons, the longitude values from thie method do not necessarily fall within the range [-180°, 180°].

Provided Methods§

Source

fn latlons<'a>( &'a self, ) -> Result<Map<Self::Iter<'a>, fn((f32, f32)) -> (f32, f32)>, GribError>

Computes and returns an iterator over latitudes and longitudes of grid points in degrees. The returned longitude values are converted to fall within the range [-180°, 180°].

The order of lat/lon data of grid points is the same as the order of the grid point values, defined by the scanning mode (ScanningMode) in the data.