[−]Struct druid::Affine

pub struct Affine(_);

A 2D affine transform.

Implementations

`impl Affine`

`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 rotate(th: f64) -> Affine`

An affine transform representing rotation.

The convention for rotation is that a positive angle rotates a positive X direction into positive Y. Thus, in a Y-down coordinate system (as is common for graphics), it is a clockwise rotation, and in Y-up (traditional for math), it is anti-clockwise.

The angle, th, is expressed in radians.

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

An affine transform representing translation.

`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.

Trait Implementations

`impl Clone for Affine`

`fn clone(&self) -> Affine`

`fn clone_from(&mut self, source: &Self)`1.0.0[src]

`impl Copy for Affine`

`impl Data for Affine`[src]

`fn same(&self, other: &Self) -> bool`[src]

`impl Debug for Affine`

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

`impl Default for Affine`

`fn default() -> Affine`

`impl From<TranslateScale> for Affine`

`fn from(ts: TranslateScale) -> Affine`

`impl<'a> Mul<&'a BezPath> for Affine`

`type Output = BezPath`

The resulting type after applying the * operator.

`fn mul(self, other: &BezPath) -> BezPath`

`impl Mul<Affine> for Affine`

`type Output = Affine`

The resulting type after applying the * operator.

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

`impl Mul<BezPath> for Affine`

`type Output = BezPath`

The resulting type after applying the * operator.

`fn mul(self, other: BezPath) -> BezPath`

`impl Mul<Circle> for Affine`

`type Output = Ellipse`

The resulting type after applying the * operator.

`fn mul(self, other: Circle) -> <Affine as Mul<Circle>>::Output`

`impl Mul<CubicBez> for Affine`

`type Output = CubicBez`

The resulting type after applying the * operator.

`fn mul(self, c: CubicBez) -> CubicBez`

`impl Mul<Ellipse> for Affine`

`type Output = Ellipse`

The resulting type after applying the * operator.

`fn mul(self, other: Ellipse) -> <Affine as Mul<Ellipse>>::Output`

`impl Mul<Line> for Affine`

`type Output = Line`

The resulting type after applying the * operator.

`fn mul(self, other: Line) -> Line`

`impl Mul<PathEl> for Affine`

`type Output = PathEl`

The resulting type after applying the * operator.

`fn mul(self, other: PathEl) -> PathEl`

`impl Mul<Point> for Affine`

`type Output = Point`

The resulting type after applying the * operator.

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

`impl Mul<QuadBez> for Affine`

`type Output = QuadBez`

The resulting type after applying the * operator.

`fn mul(self, other: QuadBez) -> QuadBez`

`impl MulAssign<Affine> for Affine`

`fn mul_assign(&mut self, other: Affine)`

`impl PartialEq<Affine> for Affine`

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

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

`impl StructuralPartialEq for Affine`

Auto Trait Implementations

`impl RefUnwindSafe for Affine`

`impl Send for Affine`

`impl Sync for Affine`

`impl Unpin for Affine`

`impl UnwindSafe for Affine`

Blanket Implementations

`impl<T> Any for T where T: 'static + ?Sized,` [src]

`fn type_id(&self) -> TypeId`[src]

`impl<T> AnyEq for T where T: PartialEq<T> + Any,` [src]

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

`fn as_any(&self) -> &(dyn Any + 'static)`[src]

`impl<T> Borrow<T> for T where T: ?Sized,` [src]

`fn borrow(&self) -> &T`[src]

`impl<T> BorrowMut<T> for T where T: ?Sized,` [src]

`fn borrow_mut(&mut self) -> &mut T`[src]

`impl<T> From<T> for T`[src]

`fn from(t: T) -> T`[src]

`impl<T, U> Into<U> for T where U: From<T>,` [src]

`fn into(self) -> U`[src]

`impl<T> RoundFrom<T> for T`

`fn round_from(x: T) -> T`

`impl<T, U> RoundInto<U> for T where U: RoundFrom<T>,`

`fn round_into(self) -> U`

`impl<T> Same<T> for T`

`type Output = T`

Should always be Self

`impl<T> ToOwned for T where T: Clone,` [src]

`type Owned = T`

The resulting type after obtaining ownership.

`fn to_owned(&self) -> T`[src]

`fn clone_into(&self, target: &mut T)`[src]

`impl<T, U> TryFrom<U> for T where U: Into<T>,` [src]

`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>`[src]

`impl<T, U> TryInto<U> for T where U: TryFrom<T>,` [src]

`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>`[src]