Struct Point

pub struct Point<T> {
    pub x: T,
    pub y: T,
}

A 2D points.

Fields

x: T

The x-coordinate of the point

y: T

The y-coordinate of the point

Implementations

impl<T> Point<T>

pub fn new(x: T, y: T) -> Point<T>

Construct new points

impl<T> Point<T>

pub fn ref_inner(&self) -> Point<&T>

impl<T> Point<T>

where T: Num + Clone,

pub fn norm(&self) -> T

where T: Float,

pub fn cross_dot(&self, a: &Point<T>, b: &Point<T>) -> T

\vec{PA}\times\vec{PB} = (a_x-b_x)*(p_y-b_y)-(p_x-b_x)*(a_y-b_y)

Trait Implementations

impl<T, V> Add<V> for Point<T>

where Point<T>: From<V>, T: Add<Output = T>,

type Output = Point<T>

The resulting type after applying the + operator.

fn add(self, rhs: V) -> <Point<T> as Add<V>>::Output

Performs the + operation.

impl<T> Clone for Point<T>

where T: Clone,

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T> Debug for Point<T>

where T: Debug,

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

Formats the value using the given formatter.

impl<T> Default for Point<T>

where T: Zero,

fn default() -> Point<T>

Returns the “default value” for a type.

impl<T> Display for Point<T>

where T: Display,

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

Formats the value using the given formatter.

impl<T> EuclideanDistance<T> for Point<T>

where T: Real,

fn euclidean_distance(&self, c: &Point<T>) -> T

Minimum distance between two Coords

fn euclidean_squared(&self, rhs: &Point<T>) -> T

It is especially suitable when only the length needs to be compared

impl<T> EuclideanDistance<T, Circle<T>> for Point<T>

where T: Float,

fn euclidean_distance(&self, rhs: &Circle<T>) -> T

fn euclidean_squared(&self, rhs: &Circle<T>) -> T

It is especially suitable when only the length needs to be compared

impl<T> EuclideanDistance<T, Line<T>> for Point<T>

where T: Float,

fn euclidean_distance(&self, rhs: &Line<T>) -> T

fn euclidean_squared(&self, rhs: &Line<T>) -> T

It is especially suitable when only the length needs to be compared

impl<T> EuclideanDistance<T, PointSet<T>> for Point<T>

where T: Float + PartialOrd,

fn euclidean_squared(&self, rhs: &PointSet<T>) -> T

适合单次查询最近的点

fn euclidean_distance(&self, rhs: &PointSet<T>) -> T

impl<T> EuclideanDistance<T, Triangle<T>> for Point<T>

where T: Float,

fn euclidean_distance(&self, rhs: &Triangle<T>) -> T

fn euclidean_squared(&self, rhs: &Triangle<T>) -> T

It is especially suitable when only the length needs to be compared

impl<T> From<&Point<T>> for Point<T>

where T: Clone,

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

Converts to this type from the input type.

impl<T> From<[T; 2]> for Point<T>

fn from(_: [T; 2]) -> Point<T>

Converts to this type from the input type.

impl<T> From<(T, T)> for Point<T>

fn from(_: (T, T)) -> Point<T>

Converts to this type from the input type.

impl<T> From<Point<&T>> for Point<T>

where T: Clone,

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

Converts to this type from the input type.

impl<T> Hash for Point<T>

where T: Hash,

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

where __H: Hasher,

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> ManhattanDistance<T> for Point<T>

where T: Clone + Sub<Output = T> + Add<Output = T> + PartialOrd,

fn manhattan_distance(&self, rhs: &Point<T>) -> T

impl<T> Neg for Point<T>

where T: Neg<Output = T>,

type Output = Point<T>

The resulting type after applying the - operator.

fn neg(self) -> <Point<T> as Neg>::Output

Performs the unary - operation.

impl<T> PartialEq for Point<T>

where T: PartialEq,

fn eq(&self, other: &Point<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> Projective<T> for Point<T>

where T: Real,

fn transform(&mut self, matrix: &[&T; 9])

Transform by a 3×3 matrix.

fn translate(&mut self, x: &T, y: &T)

Transform by length $\delta x, \delta y$.

fn translate_x(&mut self, x: &T)

Transform by length $\delta x$.

fn translate_y(&mut self, y: &T)

Transform by length $\delta y$.

fn rotate(&mut self, angle: &T)

Transform by rotate degree $\alpha$.

fn rotate_point(&mut self, point: &[&T; 2], angle: &T)

Transform by rotate with a point $\alpha$.

fn scale(&mut self, x: &T, y: &T)

Transform by scale $x, y$.

fn scale_x(&mut self, x: &T)

Transform by scale $x$.

fn scale_y(&mut self, y: &T)

Transform by scale $y$.

fn reflect(&mut self, x: &T, y: &T)

Transform by skew $x, y$.

fn reflect_x(&mut self)

Transform by skew $x$.

fn reflect_y(&mut self)

Transform by skew $y$.

fn skew(&mut self, a: &T, b: &T)

Transform by angle $\alpha, \beta$.

fn skew_x(&mut self, a: &T)

Transform by angle $\alpha$.

fn skew_y(&mut self, b: &T)

Transform by angle $\beta$.

impl<T, V> Sub<V> for Point<T>

where Point<T>: From<V>, T: Sub<Output = T>,

type Output = Point<T>

The resulting type after applying the - operator.

fn sub(self, rhs: V) -> <Point<T> as Sub<V>>::Output

Performs the - operation.

impl<T> Copy for Point<T>

where T: Copy,

impl<T> Eq for Point<T>

where T: Eq,

impl<T> StructuralPartialEq for Point<T>