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Added Matrix3::from_diagonal

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Useful for creation of scale matrices.
This commit is contained in:
Vyacheslav Zeronov 2014-08-08 13:46:25 +06:00
parent 38364a6439
commit 535b5aa01f
1 changed files with 7 additions and 0 deletions
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7
src/matrix.rs
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@ -208,6 +208,13 @@ Matrix3<S> {
_1subc * axis.y * axis.z - s * axis.x, _1subc * axis.y * axis.z - s * axis.x,
_1subc * axis.z * axis.z + c) _1subc * axis.z * axis.z + c)
} }
/// Create a matrix from a non-uniform scale
pub fn from_diagonal(value: &Vector3<S>) -> Matrix3<S> {
Matrix3::new(value.x, zero(), zero(),
zero(), value.y, zero(),
zero(), zero(), value.z)
}
} }
impl<S: BaseNum> Matrix4<S> { impl<S: BaseNum> Matrix4<S> {