Trait nannou::math::Rotation [−][src]
pub trait Rotation<P>: Copy + One + ApproxEq<Epsilon = <P as EuclideanSpace>::Scalar, Epsilon = <P as EuclideanSpace>::Scalar> + Product<Self> + ApproxEq + Product<Self> where
P: EuclideanSpace,
<P as EuclideanSpace>::Scalar: BaseFloat, { fn look_at(
dir: <P as EuclideanSpace>::Diff,
up: <P as EuclideanSpace>::Diff
) -> Self; fn between_vectors(
a: <P as EuclideanSpace>::Diff,
b: <P as EuclideanSpace>::Diff
) -> Self; fn rotate_vector(
&self,
vec: <P as EuclideanSpace>::Diff
) -> <P as EuclideanSpace>::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 as EuclideanSpace>::Diff,
up: <P as EuclideanSpace>::Diff
) -> Self
dir: <P as EuclideanSpace>::Diff,
up: <P as EuclideanSpace>::Diff
) -> Self
Create a rotation to a given direction with an 'up' vector.
fn between_vectors(
a: <P as EuclideanSpace>::Diff,
b: <P as EuclideanSpace>::Diff
) -> Self
a: <P as EuclideanSpace>::Diff,
b: <P as EuclideanSpace>::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 as EuclideanSpace>::Diff
) -> <P as EuclideanSpace>::Diff
&self,
vec: <P as EuclideanSpace>::Diff
) -> <P as EuclideanSpace>::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.