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Affine

day_pieces::prelude

Struct Affine

pub struct Affine {
    pub a: f64,
    pub b: f64,
    pub c: f64,
    pub d: f64,
    pub tx: f64,
    pub ty: f64,
}

Expand description

A 2-D affine transform (CoreGraphics row-vector convention): a point p maps to (a·p.x + c·p.y + tx, b·p.x + d·p.y + ty). Used by canvas transform ops for shape rotate/scale/offset — every native 2-D context concatenates it onto its CTM identically.

Fields§

§a: f64§b: f64§c: f64§d: f64§tx: f64§ty: f64

Implementations§

impl Affine

pub const IDENTITY: Affine

pub const fn translate(x: f64, y: f64) -> Affine

pub const fn scale(sx: f64, sy: f64) -> Affine

pub fn rotate(radians: f64) -> Affine

Rotation by radians (counter-clockwise in a y-up space; clockwise on y-down screens).

pub fn then(self, o: Affine) -> Affine

self applied first, then other (row-vector product self · other).

pub fn apply(&self, p: Point) -> Point

pub fn invert_apply(&self, p: Point) -> Option<Point>

Map a point back through the inverse (for hit-testing a transformed shape). None if singular.

pub fn is_identity(&self) -> bool

pub fn as_array(&self) -> [f64; 6]

pub fn from_array(m: [f64; 6]) -> Affine

Trait Implementations§

impl Clone for Affine

fn clone(&self) -> Affine

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

impl Debug for Affine

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

Formats the value using the given formatter. Read more

impl PartialEq for Affine

fn eq(&self, other: &Affine) -> bool

Tests for self and other values to be equal, and is used by ==.

1.0.0 (const: unstable) · Source§

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 Copy for Affine

impl StructuralPartialEq for Affine

Auto Trait Implementations§

impl Freeze for Affine

impl RefUnwindSafe for Affine

impl Send for Affine

impl Sync for Affine

impl Unpin for Affine

impl UnsafeUnpin for Affine

impl UnwindSafe for Affine

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> AnyEq for T
where T: Any + PartialEq,

fn equals(&self, other: &(dyn Any + 'static)) -> bool

fn as_any(&self) -> &(dyn Any + 'static)

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

impl<T> IntoReactive<T, StaticMark> for T
where T: Clone + 'static,

fn into_reactive(self) -> Reactive<T>

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T> ErasedDestructor for T
where T: 'static,

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