Add TryFrom and TryInto for LatLon
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parent
abc450a15b
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11e158b0e8
@ -1,11 +1,11 @@
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use nom::{
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branch::alt,
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bytes::complete::tag_no_case,
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bytes::complete::{tag_no_case, take_while1},
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character::{
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complete::{space0, space1},
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*,
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},
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combinator::{map, opt},
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combinator::{map, map_opt, opt},
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sequence::tuple,
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IResult,
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};
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@ -34,3 +34,23 @@ pub fn parse_direction(i: &str) -> IResult<&str, Direction> {
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map(tag_no_case("w"), |_| Direction::West),
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))(i)
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}
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pub fn parse_f64(i: &str) -> IResult<&str, f64> {
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map_opt(
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take_while1(|c: char| c.is_ascii_digit() || c == '-' || c == '.'),
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|n: &str| n.parse::<f64>().ok(),
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)(i)
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}
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#[cfg(tests)]
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mod tests {
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use super::*;
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#[test]
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fn test_parse_f64() {
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assert_eq!(parse_f64("1"), Ok(("", 1_f64)));
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assert_eq!(parse_f64("1.0"), Ok(("", 1.0_f64)));
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assert_eq!(parse_f64("1.0e2"), Ok(("e2", 1.0_f64)));
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assert_eq!(parse_f64("1.0x"), Ok(("x", 1.0_f64)));
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}
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}
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@ -24,13 +24,25 @@ impl Coordinate {
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tuple((double, optional_separator(','), double)),
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|(lat, _, lon)| {
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// Ensure this is a north/south then east/west direction
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Self::from(lat, lon)
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},
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)(i)
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}
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pub fn from(lat: f64, lon: f64) -> Option<Self> {
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if (-90_f64..=90_f64).contains(&lat) && (-180_f64..=180_f64).contains(&lon) {
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Some(Coordinate { lat: lat, lon: lon })
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Some(Self { lat: lat, lon: lon })
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} else {
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None
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}
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},
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)(i)
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}
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}
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impl TryFrom<(f64, f64)> for Coordinate {
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type Error = ();
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fn try_from((lat, lon): (f64, f64)) -> Result<Self, Self::Error> {
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Self::from(lat, lon).ok_or(())
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}
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}
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@ -1,6 +1,6 @@
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use crate::{
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common::{optional_separator, parse_direction},
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Direction,
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Direction, LatLon,
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};
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use nom::{
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branch::alt,
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@ -10,10 +10,11 @@ use nom::{
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sequence::{pair, tuple},
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IResult,
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};
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use std::str::FromStr;
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use std::{convert::Infallible, str::FromStr};
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#[derive(PartialEq, Debug)]
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pub struct Coordinate(pub DMM, pub DMM);
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impl Coordinate {
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pub fn parse(i: &str) -> IResult<&str, Self> {
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map_opt(
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@ -95,3 +96,34 @@ impl FromStr for DMM {
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DMM::parse(i).map_err(|_| ()).map(|(_, ret)| ret)
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}
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}
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impl TryInto<LatLon> for Coordinate {
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type Error = ();
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fn try_into(self) -> Result<LatLon, Self::Error> {
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LatLon::from(
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self.0.degrees as f64 + self.0.minutes * 60.0_f64,
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self.1.degrees as f64 + self.1.minutes * 60.0_f64,
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)
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.ok_or(())
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}
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}
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impl TryFrom<LatLon> for Coordinate {
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type Error = Infallible;
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fn try_from(value: LatLon) -> Result<Self, Self::Error> {
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Ok(Self(
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DMM {
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degrees: value.lat as i16,
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minutes: value.lat.fract() * 60_f64,
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direction: Direction::North,
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},
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DMM {
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degrees: value.lon as i16,
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minutes: value.lon.fract() * 60_f64,
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direction: Direction::North,
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},
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))
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}
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}
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@ -1,6 +1,6 @@
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use crate::{
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common::{optional_separator, parse_direction},
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Direction,
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Direction, LatLon,
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};
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use nom::{
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branch::alt,
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@ -103,3 +103,39 @@ impl FromStr for DMS {
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DMS::parse(i).map_err(|_| ()).map(|(_, ret)| ret)
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}
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}
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impl TryInto<LatLon> for Coordinate {
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type Error = ();
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fn try_into(self) -> Result<LatLon, Self::Error> {
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Err(())
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// LatLon::from(
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// self.0.degrees as f64 + self.0.minutes * 60.0_f64,
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// self.1.degrees as f64 + self.1.minutes * 60.0_f64,
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// )
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// .ok_or(())
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}
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}
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impl TryFrom<LatLon> for Coordinate {
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type Error = ();
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fn try_from(value: LatLon) -> Result<Self, Self::Error> {
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Err(())
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// Ok(Self(
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// DMS {
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// degrees: value.lat as i16,
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// minutes: value.lat.fract() * 60_f64 as i16,
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// seconds: value.lat.fract() * 3600_f64,
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// direction: Direction::North,
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// },
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// DMS {
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// degrees: value.lon as i16,
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// minutes: value.lon.fract() * 60_f64 as i16,
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// seconds: value.lon.fract() * 3600_f64,
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// direction: Direction::North,
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// },
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// ))
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}
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}
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@ -1,6 +1,6 @@
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use crate::{
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common::{optional_separator, parse_direction},
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Direction,
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Direction, LatLon,
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};
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use nom::{
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branch::alt,
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@ -13,20 +13,24 @@ use nom::{
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};
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use std::str::FromStr;
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const PLUSCODE_CHARS: [char; 22] = [
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'C', 'F', 'G', 'H', 'J', 'M', 'P', 'Q', 'R',
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'V', 'W', 'X',
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// TODO: Pick an approprite length
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const PLUSCODE_LENGTH: usize = 8;
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const PLUSCODE_CHARS: [char; 23] = [
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'+', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'C', 'F', 'G', 'H', 'J', 'M', 'P', 'Q',
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'R', 'V', 'W', 'X',
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];
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#[derive(PartialEq, Debug)]
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pub struct Coordinate(pub f64, pub f64);
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pub struct Coordinate(pub String);
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impl Coordinate {
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pub fn parse(i: &str) -> IResult<&str, Self> {
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map_opt(pluscode_chars, |c| {
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pluscodes::decode(c)
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.map(|coord| Coordinate(coord.latitude, coord.longitude))
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.ok()
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// Check if it can be decoded first
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pluscodes::decode(c).ok()?;
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// It can! Store it
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Some(Coordinate(c.to_string()))
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})(i)
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}
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}
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@ -42,3 +46,34 @@ impl FromStr for Coordinate {
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fn pluscode_chars(i: &str) -> IResult<&str, &str> {
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take_while(|c| PLUSCODE_CHARS.contains(&c))(i)
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}
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impl TryInto<LatLon> for Coordinate {
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type Error = ();
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fn try_into(self) -> Result<LatLon, Self::Error> {
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pluscodes::decode(&self.0)
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.map(
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|pluscodes::Coordinate {
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latitude: lat,
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longitude: lon,
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}| { LatLon::from(lat, lon) },
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)
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.map_err(|_| ())?
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.ok_or(())
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}
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}
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impl TryFrom<LatLon> for Coordinate {
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type Error = pluscodes::Error;
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fn try_from(value: LatLon) -> Result<Self, Self::Error> {
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pluscodes::encode(
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&pluscodes::Coordinate {
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latitude: value.lat,
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longitude: value.lon,
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},
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PLUSCODE_LENGTH,
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)
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.map(Coordinate)
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}
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}
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use crate::{
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common::{optional_separator, parse_direction},
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Direction,
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common::{optional_separator, parse_direction, parse_f64},
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Direction, LatLon,
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};
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use nom::{
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branch::alt,
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IResult,
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};
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use std::str::FromStr;
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use utm::WSG84ToLatLonError;
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#[derive(PartialEq, Debug)]
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pub struct Coordinate {
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@ -26,6 +27,8 @@ impl Coordinate {
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/// use spatial_coordinate_systems::utm::Coordinate;
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///
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/// assert!(Coordinate::parse("10S 706832mE 4344683mN").is_ok());
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/// assert!(Coordinate::parse("10S 706832mE 4344683N").is_ok());
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/// assert!(Coordinate::parse("10S 706832E 4344683N").is_ok());
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/// assert!(Coordinate::parse("10S706832mE 4344683mN").is_err());
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/// assert!(Coordinate::parse("10S 706832mE 4344683m").is_err());
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/// ```
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@ -36,12 +39,12 @@ impl Coordinate {
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space0,
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take(1_usize),
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space1,
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double,
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//TODO: Can there be spaces around the m here or no?
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parse_f64,
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// TODO: Can there be spaces around the m here or no?
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opt(complete::char('m')),
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parse_direction,
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space1,
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double,
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parse_f64,
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opt(complete::char('m')),
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parse_direction,
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)),
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@ -52,24 +55,12 @@ impl Coordinate {
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_,
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easting,
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_,
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easting_direction,
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_easting_direction,
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_,
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northing,
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_,
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northing_direction,
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_northing_direction,
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)| {
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eprintln!(
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"Debug: {:?}",
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(
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zone_num,
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zone_letter,
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easting,
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easting_direction,
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northing,
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northing_direction
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)
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);
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let ret = Coordinate {
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easting,
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northing,
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@ -93,3 +84,33 @@ impl FromStr for Coordinate {
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Self::parse(i).map_err(|_| ()).map(|(_, ret)| ret)
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}
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}
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impl TryInto<LatLon> for Coordinate {
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type Error = ();
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fn try_into(self) -> Result<LatLon, Self::Error> {
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LatLon::try_from(
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utm::wsg84_utm_to_lat_lon(self.easting, self.northing, self.zone_num, self.zone_letter)
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// TODO: Return the actual error
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.map_err(|_| ())?,
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)
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}
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}
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impl TryFrom<LatLon> for Coordinate {
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type Error = ();
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fn try_from(value: LatLon) -> Result<Self, Self::Error> {
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// TODO: This does not feel right
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let zone_num = utm::lat_lon_to_zone_number(value.lat, value.lon);
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let zone_letter = utm::lat_to_zone_letter(value.lat).ok_or(())?;
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let (easting, northing, _) = utm::to_utm_wgs84(value.lat, value.lon, zone_num);
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Ok(Self {
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zone_num,
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zone_letter,
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easting,
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northing,
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})
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}
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}
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