Struct GeocentricLatitudeConverter 

pub struct GeocentricLatitudeConverter { /* private fields */ }

Conversion from geographic to geocentric latitude and back.

Convert geographical latitude to geocentric (or the other way round if direction = PJ_INV)

The conversion involves a call to the tangent function, which goes through the roof at the poles, so very close (the last centimeter) to the poles no conversion takes place and the input latitude is copied directly to the output.

Fortunately, the geocentric latitude converges to the geographical at the poles, so the difference is negligible.

For the spherical case, the geographical latitude equals the geocentric, and consequently, the input is copied directly to the output.

Trait Implementations

impl Clone for GeocentricLatitudeConverter

fn clone(&self) -> GeocentricLatitudeConverter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl CoordinateStep for GeocentricLatitudeConverter

fn forward<P: TransformCoordinates>(&self, coords: &mut P)

Geographical to geocentric

fn inverse<P: TransformCoordinates>(&self, coords: &mut P)

Geocentric to geographical

fn new(proj: Rc<RefCell<Proj>>) -> Self

Create a new Converter

impl Debug for GeocentricLatitudeConverter

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

Formats the value using the given formatter.

impl PartialEq for GeocentricLatitudeConverter

fn eq(&self, other: &GeocentricLatitudeConverter) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl ProjectCoordinates for GeocentricLatitudeConverter

fn code(&self) -> i64

ESPG code for this projection

fn name(&self) -> &'static str

Projection name

fn names() -> &'static [&'static str]

Returns the list of canonical names for this projection. This is an associated function, similar to a static method.

fn datum_type() -> u8

get the datum type. Defaults to no datum

impl StructuralPartialEq for GeocentricLatitudeConverter