Box2D

Struct Box2D 

Source
#[repr(C)]
pub struct Box2D<T> { pub min: Point<T>, pub max: Point<T>, }
Expand description

A 2d axis aligned rectangle represented by its minimum and maximum coordinates.

§Representation

This struct is similar to Rect, but stores rectangle as two endpoints instead of origin point and size. Such representation has several advantages over Rect representation:

  • Several operations are more efficient with Box2D, including intersection, union, and point-in-rect.
  • The representation is less susceptible to overflow. With Rect, computation of second point can overflow for a large range of values of origin and size. However, with Box2D, computation of size cannot overflow if the coordinates are signed and the resulting size is unsigned.

A known disadvantage of Box2D is that translating the rectangle requires translating both points, whereas translating Rect only requires translating one point.

§Empty box

A box is considered empty (see is_empty) if any of the following is true:

  • it’s area is empty,
  • it’s area is negative (min.x > max.x or min.y > max.y),
  • it contains NaNs.

Fields§

§min: Point<T>

Represents min point

§max: Point<T>

Represents max point

Auto Trait Implementations§

§

impl<T> Freeze for Box2D<T>
where T: Freeze,

§

impl<T> RefUnwindSafe for Box2D<T>
where T: RefUnwindSafe,

§

impl<T> Send for Box2D<T>
where T: Send,

§

impl<T> Sync for Box2D<T>
where T: Sync,

§

impl<T> Unpin for Box2D<T>
where T: Unpin,

§

impl<T> UnwindSafe for Box2D<T>
where T: UnwindSafe,

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<Fr, To> IntoColor<To> for Fr
where To: FromColor<Fr>,

Source§

fn into_color(self) -> To

Convert into color
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.