Trait cgmath::prelude::Transform

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pub trait Transform<P: EuclideanSpace>: Sized {
    // Required methods
    fn one() -> Self;
    fn look_at(eye: P, center: P, up: P::Diff) -> Self;
    fn transform_vector(&self, vec: P::Diff) -> P::Diff;
    fn transform_point(&self, point: P) -> P;
    fn concat(&self, other: &Self) -> Self;
    fn invert(&self) -> Option<Self>;

    // Provided methods
    fn transform_as_point(&self, vec: P::Diff) -> P::Diff { ... }
    fn concat_self(&mut self, other: &Self) { ... }
    fn invert_self(&mut self) { ... }
}
Expand description

A trait representing an affine transformation that can be applied to points or vectors. An affine transformation is one which

Required Methods§

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fn one() -> Self

Create an identity transformation. That is, a transformation which does nothing.

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

Create a transformation that rotates a vector to look at center from eye, using up for orientation.

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

Transform a vector using this transform.

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

Transform a point using this transform.

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fn concat(&self, other: &Self) -> Self

Combine this transform with another, yielding a new transformation which has the effects of both.

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fn invert(&self) -> Option<Self>

Create a transform that “un-does” this one.

Provided Methods§

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

Transform a vector as a point using this transform.

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fn concat_self(&mut self, other: &Self)

Combine this transform with another, in-place.

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fn invert_self(&mut self)

Invert this transform in-place, failing if the transformation is not invertible.

Implementors§