Trait acgmath::Rotation
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[src]
pub trait Rotation<P: EuclideanSpace>: Sized + Copy + One where
Self: ApproxEq<Epsilon = <P as EuclideanSpace>::Scalar>,
<P as EuclideanSpace>::Scalar: BaseFloat, { 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.
Provided Methods
fn rotate_point(&self, point: P) -> P
Rotate a point using this rotation, by converting it to its representation as a vector.