Struct Translation2D 

pub struct Translation2D<T, Src, Dst> {
    pub x: T,
    pub y: T,
    /* private fields */
}

Available on crate feature geometry only.

A 2d transformation from a space to another that can only express translations.

The main benefit of this type over a Vector2D is the ability to cast between source and destination spaces.

Example:

use euclid::{Translation2D, Point2D, point2};
struct ParentSpace;
struct ChildSpace;
type ScrollOffset = Translation2D<i32, ParentSpace, ChildSpace>;
type ParentPoint = Point2D<i32, ParentSpace>;
type ChildPoint = Point2D<i32, ChildSpace>;

let scrolling = ScrollOffset::new(0, 100);
let p1: ParentPoint = point2(0, 0);
let p2: ChildPoint = scrolling.transform_point(p1);

Fields

x: T

y: T

Implementations

impl<T, Src, Dst> Translation2D<T, Src, Dst>

pub const fn new(x: T, y: T) -> Translation2D<T, Src, Dst>

Available on crate feature canvas only.

pub fn splat(v: T) -> Translation2D<T, Src, Dst>

where T: Clone,

Available on crate feature canvas only.

pub fn identity() -> Translation2D<T, Src, Dst>

where T: Zero,

Available on crate feature canvas only.

Creates no-op translation (both x and y is zero()).

pub fn is_identity(&self) -> bool

where T: Zero + PartialEq,

Available on crate feature canvas only.

Check if translation does nothing (both x and y is zero()).

use euclid::default::Translation2D;

assert_eq!(Translation2D::<f32>::identity().is_identity(), true);
assert_eq!(Translation2D::new(0, 0).is_identity(), true);
assert_eq!(Translation2D::new(1, 0).is_identity(), false);
assert_eq!(Translation2D::new(0, 1).is_identity(), false);

pub fn transform_size(&self, s: Size2D<T, Src>) -> Size2D<T, Dst>

Available on crate feature canvas only.

No-op, just cast the unit.

impl<T, Src, Dst> Translation2D<T, Src, Dst>

where T: Copy,

pub fn to_vector(&self) -> Vector2D<T, Src>

Available on crate feature canvas only.

Cast into a 2D vector.

pub fn to_array(&self) -> [T; 2]

Available on crate feature canvas only.

Cast into an array with x and y.

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

Available on crate feature canvas only.

Cast into a tuple with x and y.

pub fn to_untyped(&self) -> Translation2D<T, UnknownUnit, UnknownUnit>

Available on crate feature canvas only.

Drop the units, preserving only the numeric value.

pub fn from_untyped( t: &Translation2D<T, UnknownUnit, UnknownUnit>, ) -> Translation2D<T, Src, Dst>

Available on crate feature canvas only.

Tag a unitless value with units.

pub fn to_transform(&self) -> Transform2D<T, Src, Dst>

where T: Zero + One,

Available on crate feature canvas only.

Returns the matrix representation of this translation.

pub fn transform_point( &self, p: Point2D<T, Src>, ) -> Point2D<<T as Add>::Output, Dst>

where T: Add,

Available on crate feature canvas only.

Translate a point and cast its unit.

pub fn transform_rect(&self, r: &Rect<T, Src>) -> Rect<<T as Add>::Output, Dst>

where T: Add<Output = T>,

Available on crate feature canvas only.

Translate a rectangle and cast its unit.

pub fn transform_box(&self, r: &Box2D<T, Src>) -> Box2D<<T as Add>::Output, Dst>

where T: Add,

Available on crate feature canvas only.

Translate a 2D box and cast its unit.

pub fn inverse(&self) -> Translation2D<<T as Neg>::Output, Dst, Src>

where T: Neg,

Available on crate feature canvas only.

Return the inverse transformation.

impl<T, Src, Dst> Translation2D<T, Src, Dst>

where T: NumCast + Copy,

pub fn cast<NewT>(self) -> Translation2D<NewT, Src, Dst>

where NewT: NumCast,

Available on crate feature canvas only.

Cast from one numeric representation to another, preserving the units.

When casting from floating vector to integer coordinates, the decimals are truncated as one would expect from a simple cast, but this behavior does not always make sense geometrically. Consider using round(), ceil() or floor() before casting.

pub fn try_cast<NewT>(self) -> Option<Translation2D<NewT, Src, Dst>>

where NewT: NumCast,

Available on crate feature canvas only.

Fallible cast from one numeric representation to another, preserving the units.

When casting from floating vector to integer coordinates, the decimals are truncated as one would expect from a simple cast, but this behavior does not always make sense geometrically. Consider using round(), ceil() or floor() before casting.

pub fn to_f32(self) -> Translation2D<f32, Src, Dst>

Available on crate feature canvas only.

Cast into an f32 vector.

pub fn to_f64(self) -> Translation2D<f64, Src, Dst>

Available on crate feature canvas only.

Cast into an f64 vector.

pub fn to_usize(self) -> Translation2D<usize, Src, Dst>

Available on crate feature canvas only.

Cast into an usize vector, truncating decimals if any.

When casting from floating vector vectors, it is worth considering whether to round(), ceil() or floor() before the cast in order to obtain the desired conversion behavior.

pub fn to_u32(self) -> Translation2D<u32, Src, Dst>

Available on crate feature canvas only.

Cast into an u32 vector, truncating decimals if any.

When casting from floating vector vectors, it is worth considering whether to round(), ceil() or floor() before the cast in order to obtain the desired conversion behavior.

pub fn to_i32(self) -> Translation2D<i32, Src, Dst>

Available on crate feature canvas only.

Cast into an i32 vector, truncating decimals if any.

When casting from floating vector vectors, it is worth considering whether to round(), ceil() or floor() before the cast in order to obtain the desired conversion behavior.

pub fn to_i64(self) -> Translation2D<i64, Src, Dst>

Available on crate feature canvas only.

Cast into an i64 vector, truncating decimals if any.

When casting from floating vector vectors, it is worth considering whether to round(), ceil() or floor() before the cast in order to obtain the desired conversion behavior.

Trait Implementations

impl<T, Src, Dst1, Dst2> Add<Translation2D<T, Dst1, Dst2>> for Translation2D<T, Src, Dst1>

where T: Add,

type Output = Translation2D<<T as Add>::Output, Src, Dst2>

The resulting type after applying the + operator.

fn add( self, other: Translation2D<T, Dst1, Dst2>, ) -> <Translation2D<T, Src, Dst1> as Add<Translation2D<T, Dst1, Dst2>>>::Output

Performs the + operation.

impl<T, Src, Dst> AddAssign<Translation2D<T, Dst, Dst>> for Translation2D<T, Src, Dst>

where T: AddAssign,

fn add_assign(&mut self, other: Translation2D<T, Dst, Dst>)

Performs the += operation.

impl<T, Src, Dst> Clone for Translation2D<T, Src, Dst>

where T: Clone,

fn clone(&self) -> Translation2D<T, Src, Dst>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T, Src, Dst> Debug for Translation2D<T, Src, Dst>

where T: Debug,

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

Formats the value using the given formatter.

impl<T, Src, Dst> Default for Translation2D<T, Src, Dst>

where T: Zero,

fn default() -> Translation2D<T, Src, Dst>

Returns the “default value” for a type.

impl<T, Src, Dst> From<Translation2D<T, Src, Dst>> for ScaleOffset2D<T, Src, Dst>

where T: Copy + One,

fn from(t: Translation2D<T, Src, Dst>) -> ScaleOffset2D<T, Src, Dst>

Converts to this type from the input type.

impl<T, Src, Dst> From<Translation2D<T, Src, Dst>> for Transform2D<T, Src, Dst>

where T: Zero + One,

fn from(t: Translation2D<T, Src, Dst>) -> Transform2D<T, Src, Dst>

Converts to this type from the input type.

impl<T, Src, Dst> From<Translation2D<T, Src, Dst>> for Vector2D<T, Src>

fn from(t: Translation2D<T, Src, Dst>) -> Vector2D<T, Src>

Converts to this type from the input type.

impl<T, Src, Dst> From<Vector2D<T, Src>> for Translation2D<T, Src, Dst>

fn from(v: Vector2D<T, Src>) -> Translation2D<T, Src, Dst>

Converts to this type from the input type.

impl<T, Src, Dst> Hash for Translation2D<T, Src, Dst>

where T: Hash,

fn hash<H>(&self, h: &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, Src, Dst> PartialEq for Translation2D<T, Src, Dst>

where T: PartialEq,

fn eq(&self, other: &Translation2D<T, Src, Dst>) -> 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, Src, Dst1, Dst2> Sub<Translation2D<T, Dst1, Dst2>> for Translation2D<T, Src, Dst2>

where T: Sub,

type Output = Translation2D<<T as Sub>::Output, Src, Dst1>

The resulting type after applying the - operator.

fn sub( self, other: Translation2D<T, Dst1, Dst2>, ) -> <Translation2D<T, Src, Dst2> as Sub<Translation2D<T, Dst1, Dst2>>>::Output

Performs the - operation.

impl<T, Src, Dst> SubAssign<Translation2D<T, Dst, Dst>> for Translation2D<T, Src, Dst>

where T: SubAssign,

fn sub_assign(&mut self, other: Translation2D<T, Dst, Dst>)

Performs the -= operation.

impl<S> Transformation<S> for Translation2D<S, UnknownUnit, UnknownUnit>

where S: Scalar,

fn transform_point(&self, p: Point2D<S, UnknownUnit>) -> Point2D<S, UnknownUnit>

fn transform_vector( &self, v: Vector2D<S, UnknownUnit>, ) -> Vector2D<S, UnknownUnit>

impl<T, Src, Dst> Copy for Translation2D<T, Src, Dst>

where T: Copy,

impl<T, Src, Dst> Eq for Translation2D<T, Src, Dst>

where T: Eq,