nalgebra/src/geometry/rotation_construction.rs

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2018-02-02 19:26:35 +08:00
use num::{One, Zero};
use alga::general::{ClosedAdd, ClosedMul};
use core::{DefaultAllocator, MatrixN, Scalar};
use core::dimension::DimName;
use core::allocator::Allocator;
use geometry::Rotation;
impl<N, D: DimName> Rotation<N, D>
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where
N: Scalar + Zero + One,
DefaultAllocator: Allocator<N, D, D>,
{
/// Creates a new square identity rotation of the given `dimension`.
#[inline]
pub fn identity() -> Rotation<N, D> {
Self::from_matrix_unchecked(MatrixN::<N, D>::identity())
}
}
impl<N, D: DimName> One for Rotation<N, D>
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where
N: Scalar + Zero + One + ClosedAdd + ClosedMul,
DefaultAllocator: Allocator<N, D, D>,
{
#[inline]
fn one() -> Self {
Self::identity()
}
}