[−][src]Trait cgmath::Rotation

pub trait Rotation<P: EuclideanSpace>: Sized + Copy + One where
    Self: AbsDiffEq<Epsilon = P::Scalar>,
    Self: RelativeEq<Epsilon = P::Scalar>,
    Self: UlpsEq<Epsilon = P::Scalar>,
    P::Scalar: BaseFloat,
    Self: Product<Self>, {
    fn look_at(dir: P::Diff, up: P::Diff) -> Self;

    fn between_vectors(a: P::Diff, b: P::Diff) -> Self;

    fn rotate_vector(&self, vec: P::Diff) -> P::Diff;

    fn invert(&self) -> Self;

    fn rotate_point(&self, point: P) -> P { ... }
}

A trait for a generic rotation. A rotation is a transformation that creates a circular motion, and preserves at least one point in the space.

Required methods

fn look_at(dir: P::Diff, up: P::Diff) -> Self

Create a rotation to a given direction with an 'up' vector.

fn between_vectors(a: P::Diff, b: P::Diff) -> Self

Create a shortest rotation to transform vector 'a' into 'b'. Both given vectors are assumed to have unit length.

fn rotate_vector(&self, vec: P::Diff) -> P::Diff

Rotate a vector using this rotation.

fn invert(&self) -> Self

Create a new rotation which "un-does" this rotation. That is, r * r.invert() is the identity.

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Provided methods

fn rotate_point(&self, point: P) -> P

Rotate a point using this rotation, by converting it to its representation as a vector.

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Implementors

impl<S: BaseFloat> Rotation<Point2<S>> for Basis2<S>[src]

impl<S: BaseFloat> Rotation<Point3<S>> for Quaternion<S>[src]

impl<S: BaseFloat> Rotation<Point3<S>> for Basis3<S>[src]

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