Struct Coord

pub struct Coord<T: CoordNum = f64> {
    pub x: T,
    pub y: T,
}

A lightweight struct used to store coordinates on the 2-dimensional Cartesian plane.

Unlike Point (which in the future may contain additional information such as an envelope, a precision model, and spatial reference system information), a Coord only contains ordinate values and accessor methods.

This type implements the vector space operations: Add, Sub, Neg, Zero, Mul<T>, and Div<T> traits.

Semantics

This type does not represent any geospatial primitive, but is used in their definitions. The only requirement is that the coordinates it contains are valid numbers (for eg. not f64::NAN).

Fields

x: T

y: T

Implementations

impl<T: CoordNum> Coord<T>

pub fn x_y(&self) -> (T, T)

Returns a tuple that contains the x/horizontal & y/vertical component of the coordinate.

Examples

use geo_types::coord;

let c = coord! {
    x: 40.02f64,
    y: 116.34,
};
let (x, y) = c.x_y();

assert_eq!(y, 116.34);
assert_eq!(x, 40.02f64);

impl<T: CoordNum> Coord<T>

Create a coordinate at the origin.

Examples

use geo_types::Coord;
use num_traits::Zero;

let p: Coord = Zero::zero();

assert_eq!(p.x, 0.);
assert_eq!(p.y, 0.);

pub fn zero() -> Self

Trait Implementations

impl<T> AbsDiffEq for Coord<T>

where T: CoordNum + AbsDiffEq<Epsilon = T>,

type Epsilon = <T as AbsDiffEq>::Epsilon

Used for specifying relative comparisons.

fn default_epsilon() -> T::Epsilon

The default tolerance to use when testing values that are close together.

fn abs_diff_eq(&self, other: &Self, epsilon: T::Epsilon) -> bool

A test for equality that uses the absolute difference to compute the approximate equality of two numbers.

fn abs_diff_ne(&self, other: &Rhs, epsilon: Self::Epsilon) -> bool

The inverse of AbsDiffEq::abs_diff_eq.

impl<T: CoordNum> Add for Coord<T>

Add two coordinates.

Examples

use geo_types::coord;

let p = coord! { x: 1.25, y: 2.5 };
let q = coord! { x: 1.5, y: 2.5 };
let sum = p + q;

assert_eq!(sum.x, 2.75);
assert_eq!(sum.y, 5.0);

type Output = Coord<T>

The resulting type after applying the + operator.

fn add(self, rhs: Self) -> Self

Performs the + operation.

impl<T: CoordNum> AsRef<Coord<T>> for Coord<T>

fn as_ref(&self) -> &Coord<T>

Converts this type into a shared reference of the (usually inferred) input type.

impl<T: CoordNum> AsRef<Coord<T>> for Point<T>

fn as_ref(&self) -> &Coord<T>

Converts this type into a shared reference of the (usually inferred) input type.

impl<T: Clone + CoordNum> Clone for Coord<T>

fn clone(&self) -> Coord<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: CoordNum> Debug for Coord<T>

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

Formats the value using the given formatter.

impl<T: Default + CoordNum> Default for Coord<T>

fn default() -> Coord<T>

Returns the “default value” for a type.

impl<T: CoordNum> Div<T> for Coord<T>

Divide coordinate wise by a scalar.

Examples

use geo_types::coord;

let p = coord! { x: 5., y: 10. };
let q = p / 4.;

assert_eq!(q.x, 1.25);
assert_eq!(q.y, 2.5);

type Output = Coord<T>

The resulting type after applying the / operator.

fn div(self, rhs: T) -> Self

Performs the / operation.

impl<T: CoordNum> From<[T; 2]> for Coord<T>

fn from(coords: [T; 2]) -> Self

Converts to this type from the input type.

impl<T: CoordNum> From<(T, T)> for Coord<T>

fn from(coords: (T, T)) -> Self

Converts to this type from the input type.

impl<T: CoordNum> From<Coord<T>> for [T; 2]

fn from(coord: Coord<T>) -> Self

Converts to this type from the input type.

impl<T: CoordNum> From<Coord<T>> for (T, T)

fn from(coord: Coord<T>) -> Self

Converts to this type from the input type.

impl<T: CoordNum> From<Coord<T>> for Point<T>

fn from(x: Coord<T>) -> Self

Converts to this type from the input type.

impl<T: CoordNum> From<Point<T>> for Coord<T>

fn from(point: Point<T>) -> Self

Converts to this type from the input type.

impl<T: Hash + CoordNum> Hash for Coord<T>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T: CoordNum> Mul<T> for Coord<T>

Multiply coordinate wise by a scalar.

Examples

use geo_types::coord;

let p = coord! { x: 1.25, y: 2.5 };
let q = p * 4.;

assert_eq!(q.x, 5.0);
assert_eq!(q.y, 10.0);

type Output = Coord<T>

The resulting type after applying the * operator.

fn mul(self, rhs: T) -> Self

Performs the * operation.

impl<T> Neg for Coord<T>

where T: CoordNum + Neg<Output = T>,

Negate a coordinate.

Examples

use geo_types::coord;

let p = coord! { x: 1.25, y: 2.5 };
let q = -p;

assert_eq!(q.x, -p.x);
assert_eq!(q.y, -p.y);

type Output = Coord<T>

The resulting type after applying the - operator.

fn neg(self) -> Self

Performs the unary - operation.

impl<T: PartialEq + CoordNum> PartialEq for Coord<T>

fn eq(&self, other: &Coord<T>) -> 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<T> Point for Coord<T>

where T: Float + RTreeNum,

const DIMENSIONS: usize = 2usize

The number of dimensions of this point type.

type Scalar = T

The number type used by this point type.

fn generate(generator: impl FnMut(usize) -> Self::Scalar) -> Self

Creates a new point value with given values for each dimension.

fn nth(&self, index: usize) -> Self::Scalar

Returns a single coordinate of this point.

fn nth_mut(&mut self, index: usize) -> &mut Self::Scalar

Mutable variant of nth.

impl<T> RelativeEq for Coord<T>

where T: CoordNum + RelativeEq<Epsilon = T>,

fn default_max_relative() -> T::Epsilon

The default relative tolerance for testing values that are far-apart.

fn relative_eq( &self, other: &Self, epsilon: T::Epsilon, max_relative: T::Epsilon, ) -> bool

A test for equality that uses a relative comparison if the values are far apart.

fn relative_ne( &self, other: &Rhs, epsilon: Self::Epsilon, max_relative: Self::Epsilon, ) -> bool

The inverse of RelativeEq::relative_eq.

impl<T: CoordNum> Sub for Coord<T>

Subtract a coordinate from another.

Examples

use geo_types::coord;

let p = coord! { x: 1.5, y: 2.5 };
let q = coord! { x: 1.25, y: 2.5 };
let diff = p - q;

assert_eq!(diff.x, 0.25);
assert_eq!(diff.y, 0.);

type Output = Coord<T>

The resulting type after applying the - operator.

fn sub(self, rhs: Self) -> Self

Performs the - operation.

impl<T> UlpsEq for Coord<T>

where T: CoordNum + UlpsEq<Epsilon = T>,

fn default_max_ulps() -> u32

The default ULPs to tolerate when testing values that are far-apart.

fn ulps_eq(&self, other: &Self, epsilon: T::Epsilon, max_ulps: u32) -> bool

A test for equality that uses units in the last place (ULP) if the values are far apart.

fn ulps_ne(&self, other: &Rhs, epsilon: Self::Epsilon, max_ulps: u32) -> bool

The inverse of UlpsEq::ulps_eq.

impl<T: CoordNum> Zero for Coord<T>

fn zero() -> Self

Returns the additive identity element of Self, 0.

fn is_zero(&self) -> bool

Returns true if self is equal to the additive identity.

fn set_zero(&mut self)

Sets self to the additive identity element of Self, 0.

impl<T: Copy + CoordNum> Copy for Coord<T>

impl<T: Eq + CoordNum> Eq for Coord<T>

impl<T: CoordNum> StructuralPartialEq for Coord<T>