nalgebra/src/geometry/transform_alias.rs

use core::dimension::{U2, U3};

use geometry::{Transform, TGeneral, TProjective, TAffine};

/// A 2D general transformation that may not be inversible. Stored as an homogeneous 3x3 matrix.
pub type Transform2<N>  = Transform<N, U2, TGeneral>;
/// An inversible 2D general transformation. Stored as an homogeneous 3x3 matrix.
pub type Projective2<N> = Transform<N, U2, TProjective>;
/// A 2D affine transformation. Stored as an homogeneous 3x3 matrix.
pub type Affine2<N>     = Transform<N, U2, TAffine>;

/// A 3D general transformation that may not be inversible. Stored as an homogeneous 4x4 matrix.
pub type Transform3<N>  = Transform<N, U3, TGeneral>;
/// An inversible 3D general transformation. Stored as an homogeneous 4x4 matrix.
pub type Projective3<N> = Transform<N, U3, TProjective>;
/// A 3D affine transformation. Stored as an homogeneous 4x4 matrix.
pub type Affine3<N>     = Transform<N, U3, TAffine>;