forked from M-Labs/nalgebra
87 lines
2.3 KiB
Rust
87 lines
2.3 KiB
Rust
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#[cfg(feature = "arbitrary")]
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use quickcheck::{Arbitrary, Gen};
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use num::{Zero, One};
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use rand::{Rng, Rand};
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use alga::general::ClosedAdd;
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use core::{ColumnVector, Scalar};
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use core::dimension::{DimName, U1, U2, U3, U4, U5, U6};
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use core::storage::OwnedStorage;
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use core::allocator::OwnedAllocator;
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use geometry::TranslationBase;
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impl<N, D: DimName, S> TranslationBase<N, D, S>
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where N: Scalar + Zero,
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S: OwnedStorage<N, D, U1>,
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S::Alloc: OwnedAllocator<N, D, U1, S> {
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/// Creates a new square identity rotation of the given `dimension`.
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#[inline]
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pub fn identity() -> TranslationBase<N, D, S> {
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Self::from_vector(ColumnVector::<N, D, S>::from_element(N::zero()))
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}
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}
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impl<N, D: DimName, S> One for TranslationBase<N, D, S>
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where N: Scalar + Zero + ClosedAdd,
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S: OwnedStorage<N, D, U1>,
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S::Alloc: OwnedAllocator<N, D, U1, S> {
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#[inline]
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fn one() -> Self {
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Self::identity()
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}
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}
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impl<N, D: DimName, S> Rand for TranslationBase<N, D, S>
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where N: Scalar + Rand,
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S: OwnedStorage<N, D, U1>,
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S::Alloc: OwnedAllocator<N, D, U1, S> {
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#[inline]
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fn rand<G: Rng>(rng: &mut G) -> Self {
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Self::from_vector(rng.gen())
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}
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}
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#[cfg(feature = "arbitrary")]
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impl<N, D: DimName, S> Arbitrary for TranslationBase<N, D, S>
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where N: Scalar + Arbitrary + Send,
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S: OwnedStorage<N, D, U1> + Send,
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S::Alloc: OwnedAllocator<N, D, U1, S> {
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#[inline]
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fn arbitrary<G: Gen>(rng: &mut G) -> Self {
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Self::from_vector(Arbitrary::arbitrary(rng))
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}
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}
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/*
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*
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* Small translation construction from components.
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*
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*/
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macro_rules! componentwise_constructors_impl(
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($($D: ty, $($args: ident:$irow: expr),*);* $(;)*) => {$(
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impl<N, S> TranslationBase<N, $D, S>
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where N: Scalar,
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S: OwnedStorage<N, $D, U1>,
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S::Alloc: OwnedAllocator<N, $D, U1, S> {
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/// Initializes this matrix from its components.
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#[inline]
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pub fn new($($args: N),*) -> Self {
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Self::from_vector(ColumnVector::<N, $D, S>::new($($args),*))
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}
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}
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)*}
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);
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componentwise_constructors_impl!(
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U1, x:0;
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U2, x:0, y:1;
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U3, x:0, y:1, z:2;
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U4, x:0, y:1, z:2, w:3;
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U5, x:0, y:1, z:2, w:3, a:4;
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U6, x:0, y:1, z:2, w:3, a:4, b:5;
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);
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