Struct rerun::external::eframe::egui::accesskit::Affine

#[repr(C)]
pub struct Affine([f64; 6]);

Expand description

A 2D affine transform. Derived from kurbo.

Tuple Fields§

§0: [f64; 6]

Implementations§

impl Affine

pub const IDENTITY: Affine = _

The identity transform.

pub const FLIP_Y: Affine = _

A transform that is flipped on the y-axis. Useful for converting between y-up and y-down spaces.

pub const FLIP_X: Affine = _

A transform that is flipped on the x-axis.

pub const fn new(c: [f64; 6]) -> Affine

Construct an affine transform from coefficients.

If the coefficients are (a, b, c, d, e, f), then the resulting transformation represents this augmented matrix:

| a c e |
| b d f |
| 0 0 1 |

Note that this convention is transposed from PostScript and Direct2D, but is consistent with the Wikipedia formulation of affine transformation as augmented matrix. The idea is that (A * B) * v == A * (B * v), where * is the Mul trait.

pub const fn scale(s: f64) -> Affine

An affine transform representing uniform scaling.

pub const fn scale_non_uniform(s_x: f64, s_y: f64) -> Affine

An affine transform representing non-uniform scaling with different scale values for x and y

pub fn translate<V>(p: V) -> Affine
where V: Into<Vec2>,

An affine transform representing translation.

pub fn map_unit_square(rect: Rect) -> Affine

Creates an affine transformation that takes the unit square to the given rectangle.

Useful when you want to draw into the unit square but have your output fill any rectangle. In this case push the Affine onto the transform stack.

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

Get the coefficients of the transform.

pub fn determinant(self) -> f64

Compute the determinant of this transform.

pub fn inverse(self) -> Affine

Compute the inverse transform.

Produces NaN values when the determinant is zero.

pub fn transform_rect_bbox(self, rect: Rect) -> Rect

Compute the bounding box of a transformed rectangle.

Returns the minimal Rect that encloses the given Rect after affine transformation. If the transform is axis-aligned, then this bounding box is “tight”, in other words the returned Rect is the transformed rectangle.

The returned rectangle always has non-negative width and height.

pub fn is_finite(&self) -> bool

Is this map finite?

pub fn is_nan(&self) -> bool

Is this map NaN?

Trait Implementations§

impl Clone for Affine

fn clone(&self) -> Affine

Returns a copy of the value. Read more

1.0.0 · 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 Default for Affine

fn default() -> Affine

Returns the “default value” for a type. Read more

impl<'de> Deserialize<'de> for Affine

fn deserialize<D>( deserializer: D, ) -> Result<Affine, <D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

impl Mul<Affine> for f64

type Output = Affine

The resulting type after applying the * operator.

fn mul(self, other: Affine) -> Affine

Performs the * operation. Read more

impl Mul<Point> for Affine

type Output = Point

The resulting type after applying the * operator.

fn mul(self, other: Point) -> Point

Performs the * operation. Read more

impl Mul for Affine

type Output = Affine

The resulting type after applying the * operator.

fn mul(self, other: Affine) -> Affine

Performs the * operation. Read more

impl MulAssign for Affine

fn mul_assign(&mut self, other: Affine)

Performs the *= operation. Read more

impl PartialEq for Affine

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

This method tests for self and other values to be equal, and is used by ==.

1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Affine

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more

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 UnwindSafe for Affine

Blanket Implementations§

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Gets the TypeId of self. Read more

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Casts the value.

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

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