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added basic tests for nalgebra, and cleaned up some unused imports

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This commit is contained in:
nsmryan 2018-09-30 11:05:54 -04:00
parent b795267632
commit 15e0efa9c0
2 changed files with 39 additions and 15 deletions
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8
src/lib.rs
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@ -110,11 +110,8 @@
#[cfg(feature = "impl-cgmath")] use cgmath::{InnerSpace, Quaternion, Vector2, Vector3, Vector4}; #[cfg(feature = "impl-cgmath")] use cgmath::{InnerSpace, Quaternion, Vector2, Vector3, Vector4};
#[cfg(feature = "impl-nalgebra")] use nalgebra as na; #[cfg(feature = "impl-nalgebra")] use nalgebra as na;
#[cfg(feature = "impl-nalgebra")] use nalgebra::Matrix;
#[cfg(feature = "impl-nalgebra")] use nalgebra::core::allocator::Allocator; #[cfg(feature = "impl-nalgebra")] use nalgebra::core::allocator::Allocator;
#[cfg(feature = "impl-nalgebra")] use nalgebra::core::{DimName, DefaultAllocator, Scalar}; #[cfg(feature = "impl-nalgebra")] use nalgebra::core::{DimName, DefaultAllocator, Scalar};
#[cfg(feature = "impl-nalgebra")] use nalgebra::storage::Storage;
#[cfg(feature = "impl-nalgebra")] use generic_array::ArrayLength;
#[cfg(feature = "std")] use std::cmp::Ordering; #[cfg(feature = "std")] use std::cmp::Ordering;
#[cfg(feature = "std")] use std::f32::consts; #[cfg(feature = "std")] use std::f32::consts;
@ -406,9 +403,8 @@ impl<N : Scalar, D : DimName> Interpolate for na::Point<N, D>
{ {
fn lerp(a: Self, b: Self, t: f32) -> Self { fn lerp(a: Self, b: Self, t: f32) -> Self {
let lerp = |c1 : N, c2 : N| { Interpolate::lerp(c1, c2, t) }; let lerp = |c1 : N, c2 : N| { Interpolate::lerp(c1, c2, t) };
let coords = Matrix::zip_map(&a.coords, &b.coords, lerp); let coords = na::Matrix::zip_map(&a.coords, &b.coords, lerp);
na::Point::from_coordinates(coords) na::Point::from_coordinates(coords)
} }
} }
@ -424,7 +420,7 @@ impl<R, C> Interpolate for na::Matrix<f32, R, C, <DefaultAllocator as Allocator<
fn lerp(a: Self, b: Self, t: f32) -> Self fn lerp(a: Self, b: Self, t: f32) -> Self
{ {
let lerp = |c1 : f32, c2 : f32| Interpolate::lerp(c1, c2, t); let lerp = |c1 : f32, c2 : f32| Interpolate::lerp(c1, c2, t);
Matrix::zip_map(&a, &b, lerp) na::Matrix::zip_map(&a, &b, lerp)
} }
} }

30
tests/mod.rs
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@ -1,6 +1,9 @@
extern crate splines; extern crate splines;
#[cfg(feature = "impl-nalgebra")] extern crate nalgebra;
use splines::{Interpolation, Key, Spline, Interpolate};
#[cfg(feature = "impl-nalgebra")] use nalgebra as na;
use splines::{Interpolation, Key, Spline};
#[test] #[test]
fn step_interpolation_0() { fn step_interpolation_0() {
@ -128,3 +131,28 @@ fn several_interpolations_several_keys() {
assert_eq!(spline.sample(10.), Some(2.)); assert_eq!(spline.sample(10.), Some(2.));
assert_eq!(spline.clamped_sample(11.), 4.); assert_eq!(spline.clamped_sample(11.), 4.);
} }
#[test]
#[cfg(feature = "impl-nalgebra")]
fn nalgebra_point_interpolation() {
let start : na::Point2<f32> = na::Point2::new(0.0, 0.0);
let mid : na::Point2<f32> = na::Point2::new(0.5, 0.5);
let end : na::Point2<f32> = na::Point2::new(1.0, 1.0);
assert_eq!(Interpolate::lerp(start, end, 0.0), start);
assert_eq!(Interpolate::lerp(start, end, 1.0), end);
assert_eq!(Interpolate::lerp(start, end, 0.5), mid);
}
#[test]
#[cfg(feature = "impl-nalgebra")]
fn nalgebra_vector_interpolation() {
let start : na::Vector2<f32> = na::Vector2::new(0.0, 0.0);
let mid : na::Vector2<f32> = na::Vector2::new(0.5, 0.5);
let end : na::Vector2<f32> = na::Vector2::new(1.0, 1.0);
assert_eq!(Interpolate::lerp(start, end, 0.0), start);
assert_eq!(Interpolate::lerp(start, end, 1.0), end);
assert_eq!(Interpolate::lerp(start, end, 0.5), mid);
}