Struct osmio::Lon

pub struct Lon(/* private fields */);

Latitude and Longitude are stored internally as a 32-bit signed integer, in units of COORD_PRECISION_NANOS.

This gives us 7 decimal places of precision - the same precision that OSM uses.

use std::convert::TryFrom;
use osmio::Lat;
let lat = Lat::try_from(1.0).unwrap();
let float_lat: f64 = lat.into();
assert_eq!(float_lat, 1.);

Implementations

impl Lon

pub fn from_inner(inner: i32) -> Self

Build a Lat/Lon from it’s inner representation, which is degrees * 1e7.

use osmio::Lat;
// build a Lat for 1.2345678 degrees South
let lat = Lat::from_inner(12345678);

pub fn inner(&self) -> i32

pub fn degrees(&self) -> f64

Returns the number of degrees as a 64-bit float.

Note: The actual precision is COORD_PRECISION_NANOS, which is less than 64-bits. It is derived from an inner i32 representation, which mirrors the precision used by OpenStreetMap.org

Trait Implementations

impl Clone for Lon

fn clone(&self) -> Lon

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Lon

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Lon

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Lon

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

Formats the value using the given formatter.

impl From<Lon> for f64

fn from(val: Lon) -> f64

Converts to this type from the input type.

impl FromStr for Lon

 use osmio::Lat;
 use std::str::FromStr;

 let lat = Lat::from_str("1.23").unwrap();
 assert_eq!(1.23, lat.degrees());
 assert_eq!(12300000, lat.inner());

 assert!(Lat::from_str("-180.0").is_ok());
 assert!(Lat::from_str("xxxx").is_err());
 assert!(Lat::from_str("600.0").is_err());

type Err = ParseLatLonError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Ord for Lon

fn cmp(&self, other: &Lon) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for Lon

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for Lon

fn partial_cmp(&self, other: &Lon) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Lon

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<f32> for Lon

type Error = ParseLatLonError

The type returned in the event of a conversion error.

fn try_from(val: f32) -> Result<Lon, Self::Error>

Performs the conversion.

impl TryFrom<f64> for Lon

type Error = ParseLatLonError

The type returned in the event of a conversion error.

fn try_from(val: f64) -> Result<Lon, Self::Error>

Performs the conversion.

impl Copy for Lon

impl Eq for Lon

impl StructuralEq for Lon

impl StructuralPartialEq for Lon