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use crate::base::dimension::{U2, U3}; use crate::geometry::{Isometry, Rotation2, Rotation3, UnitComplex, UnitQuaternion}; /// A 2-dimensional direct isometry using a unit complex number for its rotational part. Also known as a rigid-body motion, or as an element of SE(2). pub type Isometry2<N> = Isometry<N, U2, UnitComplex<N>>; /// A 3-dimensional direct isometry using a unit quaternion for its rotational part. Also known as a rigid-body motion, or as an element of SE(3). pub type Isometry3<N> = Isometry<N, U3, UnitQuaternion<N>>; /// A 2-dimensional direct isometry using a rotation matrix for its rotational part. Also known as a rigid-body motion, or as an element of SE(2). pub type IsometryMatrix2<N> = Isometry<N, U2, Rotation2<N>>; /// A 3-dimensional direct isometry using a rotation matrix for its rotational part. Also known as a rigid-body motion, or as an element of SE(3). pub type IsometryMatrix3<N> = Isometry<N, U3, Rotation3<N>>;