Struct KrovakBaseProjection 

pub struct KrovakBaseProjection<const C: i64, const E: bool> { /* private fields */ }

Krovak

Classification: Conformal Conical

Available forms: Forward and inverse, spherical and ellipsoidal

Defined area: Global, but more accurate around Czech Republic and Slovakia

Alias: krovak

Domain: 2D

Input type: Geodetic coordinates

Output type: Projected coordinates

Projection String

+proj=krovak

By default, coordinates in the forward direction are output in easting, northing, and negative in the Czech Republic and Slovakia, with absolute value of easting/westing being smaller than absolute value of northing/southing.

See also mod_krovak for a variation of Krovak used with the S-JTSK/05 datum in the Czech Republic.

Required Parameters

• None, all parameters are optional for this projection.

Optional Parameters

• +czech: Reverses the sign of the output coordinates for use in the Czech Republic and Slovakia (positive values become westing and southing).
• +lon_0: Longitude of projection center. Defaults to 24°50' (24.8333).
• +lat_0: Latitude of projection center. Defaults to 49.5.
• +k_0: Scale factor. Defaults to 0.9999.
• +x_0: False easting. Defaults to 0.
• +y_0: False northing. Defaults to 0.

Notes

• The latitude of the pseudo standard parallel is hardcoded to 78.5°.
• The ellipsoid used is Bessel by default.
• Before PROJ 9.4, using custom x_0 or y_0 without the +czech switch resulted in incorrect values.

Trait Implementations

impl<const C: i64, const E: bool> Clone for KrovakBaseProjection<C, E>

fn clone(&self) -> KrovakBaseProjection<C, E>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<const C: i64, const E: bool> CoordinateStep for KrovakBaseProjection<C, E>

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

Create a new Converter

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

forward conversion

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

inverse conversion

impl<const C: i64, const E: bool> Debug for KrovakBaseProjection<C, E>

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

Formats the value using the given formatter.

impl<const C: i64, const E: bool> PartialEq for KrovakBaseProjection<C, E>

fn eq(&self, other: &KrovakBaseProjection<C, E>) -> 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<const C: i64, const E: bool> ProjectCoordinates for KrovakBaseProjection<C, E>

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<const C: i64, const E: bool> StructuralPartialEq for KrovakBaseProjection<C, E>