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@ -20,7 +20,7 @@ use base::storage::Owned;
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use base::{DefaultAllocator, MatrixN};
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use geometry::{Point, Translation};
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/// A direct isometry, i.e., a rotation followed by a translation.
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/// A direct isometry, i.e., a rotation followed by a translation, aka. a rigid-body motion, aka. an element of a Special Euclidean (SE) group.
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#[repr(C)]
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#[derive(Debug)]
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#[cfg_attr(feature = "serde-serialize", derive(Serialize, Deserialize))]
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@ -2,14 +2,14 @@ use base::dimension::{U2, U3};
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use geometry::{Isometry, Rotation2, Rotation3, UnitComplex, UnitQuaternion};
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/// A 2-dimensional direct isometry using a unit complex number for its rotational part.
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/// 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).
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pub type Isometry2<N> = Isometry<N, U2, UnitComplex<N>>;
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/// A 3-dimensional direct isometry using a unit quaternion for its rotational part.
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/// 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).
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pub type Isometry3<N> = Isometry<N, U3, UnitQuaternion<N>>;
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/// A 2-dimensional direct isometry using a rotation matrix for its rotational part.
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/// 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).
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pub type IsometryMatrix2<N> = Isometry<N, U2, Rotation2<N>>;
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/// A 3-dimensional direct isometry using a rotation matrix for its rotational part.
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/// 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).
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pub type IsometryMatrix3<N> = Isometry<N, U3, Rotation3<N>>;
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