cgmath

Trait Rotation

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pub trait Rotation:
    Sized
    + Copy
    + One
where Self: AbsDiffEq<Epsilon = <Self::Space as EuclideanSpace>::Scalar> + RelativeEq<Epsilon = <Self::Space as EuclideanSpace>::Scalar> + UlpsEq<Epsilon = <Self::Space as EuclideanSpace>::Scalar> + Product<Self>, <Self::Space as EuclideanSpace>::Scalar: BaseFloat,
{ type Space: EuclideanSpace; // Required methods fn look_at( dir: <Self::Space as EuclideanSpace>::Diff, up: <Self::Space as EuclideanSpace>::Diff, ) -> Self; fn between_vectors( a: <Self::Space as EuclideanSpace>::Diff, b: <Self::Space as EuclideanSpace>::Diff, ) -> Self; fn rotate_vector( &self, vec: <Self::Space as EuclideanSpace>::Diff, ) -> <Self::Space as EuclideanSpace>::Diff; fn invert(&self) -> Self; // Provided method fn rotate_point(&self, point: Self::Space) -> Self::Space { ... } }
Expand description

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 Associated Types§

Required Methods§

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fn look_at( dir: <Self::Space as EuclideanSpace>::Diff, up: <Self::Space as EuclideanSpace>::Diff, ) -> Self

Create a rotation to a given direction with an ‘up’ vector.

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fn between_vectors( a: <Self::Space as EuclideanSpace>::Diff, b: <Self::Space as EuclideanSpace>::Diff, ) -> Self

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

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fn rotate_vector( &self, vec: <Self::Space as EuclideanSpace>::Diff, ) -> <Self::Space as EuclideanSpace>::Diff

Rotate a vector using this rotation.

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fn invert(&self) -> Self

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

Provided Methods§

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fn rotate_point(&self, point: Self::Space) -> Self::Space

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

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§