Struct euclid::Rotation2D

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#[repr(C)]
pub struct Rotation2D<T, Src, Dst> { pub angle: T, /* private fields */ }
Expand description

A transform that can represent rotations in 2d, represented as an angle in radians.

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§angle: T

Angle in radians

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impl<T, Src, Dst> Rotation2D<T, Src, Dst>

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pub fn new(angle: Angle<T>) -> Self

Creates a rotation from an angle in radians.

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pub fn radians(angle: T) -> Self

Creates a rotation from an angle in radians.

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pub fn identity() -> Self
where T: Zero,

Creates the identity rotation.

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impl<T: Copy, Src, Dst> Rotation2D<T, Src, Dst>

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pub fn cast_unit<Src2, Dst2>(&self) -> Rotation2D<T, Src2, Dst2>

Cast the unit, preserving the numeric value.

§Example
enum Local {}
enum World {}

enum Local2 {}
enum World2 {}

let to_world: Rotation2D<_, Local, World> = Rotation2D::radians(42);

assert_eq!(to_world.angle, to_world.cast_unit::<Local2, World2>().angle);
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pub fn to_untyped(&self) -> Rotation2D<T, UnknownUnit, UnknownUnit>

Drop the units, preserving only the numeric value.

§Example
enum Local {}
enum World {}

let to_world: Rotation2D<_, Local, World> = Rotation2D::radians(42);

assert_eq!(to_world.angle, to_world.to_untyped().angle);
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pub fn from_untyped(r: &Rotation2D<T, UnknownUnit, UnknownUnit>) -> Self

Tag a unitless value with units.

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use euclid::UnknownUnit;
enum Local {}
enum World {}

let rot: Rotation2D<_, UnknownUnit, UnknownUnit> = Rotation2D::radians(42);

assert_eq!(rot.angle, Rotation2D::<_, Local, World>::from_untyped(&rot).angle);
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impl<T, Src, Dst> Rotation2D<T, Src, Dst>
where T: Copy,

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pub fn get_angle(&self) -> Angle<T>

Returns self.angle as a strongly typed Angle<T>.

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impl<T: Real, Src, Dst> Rotation2D<T, Src, Dst>

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pub fn to_3d(&self) -> Rotation3D<T, Src, Dst>

Creates a 3d rotation (around the z axis) from this 2d rotation.

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pub fn inverse(&self) -> Rotation2D<T, Dst, Src>

Returns the inverse of this rotation.

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pub fn then<NewSrc>( &self, other: &Rotation2D<T, NewSrc, Src>, ) -> Rotation2D<T, NewSrc, Dst>

Returns a rotation representing the other rotation followed by this rotation.

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pub fn transform_point(&self, point: Point2D<T, Src>) -> Point2D<T, Dst>

Returns the given 2d point transformed by this rotation.

The input point must be use the unit Src, and the returned point has the unit Dst.

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pub fn transform_vector(&self, vector: Vector2D<T, Src>) -> Vector2D<T, Dst>

Returns the given 2d vector transformed by this rotation.

The input point must be use the unit Src, and the returned point has the unit Dst.

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impl<T, Src, Dst> Rotation2D<T, Src, Dst>
where T: Copy + Add<Output = T> + Sub<Output = T> + Mul<Output = T> + Zero + Trig,

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

Returns the matrix representation of this rotation.

Trait Implementations§

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impl<T, Src, Dst> ApproxEq<T> for Rotation2D<T, Src, Dst>
where T: Copy + Neg<Output = T> + ApproxEq<T>,

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fn approx_epsilon() -> T

Default epsilon value
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fn approx_eq_eps(&self, other: &Self, eps: &T) -> bool

Returns true if this object is approximately equal to the other one, using a provided epsilon value.
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fn approx_eq(&self, other: &Self) -> bool

Returns true if this object is approximately equal to the other one, using the approx_epsilon epsilon value.
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impl<T: Clone, Src, Dst> Clone for Rotation2D<T, Src, Dst>

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T: Debug, Src, Dst> Debug for Rotation2D<T, Src, Dst>

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

Formats the value using the given formatter. Read more
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impl<T, Src, Dst> Hash for Rotation2D<T, Src, Dst>
where T: Hash,

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fn hash<H: Hasher>(&self, h: &mut H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<T, Src, Dst> PartialEq for Rotation2D<T, Src, Dst>
where T: PartialEq,

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T: Copy, Src, Dst> Copy for Rotation2D<T, Src, Dst>

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impl<T, Src, Dst> Eq for Rotation2D<T, Src, Dst>
where T: Eq,

Auto Trait Implementations§

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impl<T, Src, Dst> Freeze for Rotation2D<T, Src, Dst>
where T: Freeze,

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impl<T, Src, Dst> RefUnwindSafe for Rotation2D<T, Src, Dst>

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impl<T, Src, Dst> Send for Rotation2D<T, Src, Dst>
where T: Send, Src: Send, Dst: Send,

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impl<T, Src, Dst> Sync for Rotation2D<T, Src, Dst>
where T: Sync, Src: Sync, Dst: Sync,

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impl<T, Src, Dst> Unpin for Rotation2D<T, Src, Dst>
where T: Unpin, Src: Unpin, Dst: Unpin,

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impl<T, Src, Dst> UnwindSafe for Rotation2D<T, Src, Dst>
where T: UnwindSafe, Src: UnwindSafe, Dst: UnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.