extern crate cgmath;
use cgmath::*;
mod rotation {
use super::cgmath::*;
pub fn a2<R: Rotation2<f64>>() -> R {
Rotation2::from_angle(Deg(30.0))
}
pub fn a3<R: Rotation3<f64>>() -> R {
let axis = Vector3::new(1.0, 1.0, 0.0).normalize();
Rotation3::from_axis_angle(axis, Deg(30.0))
}
}
#[test]
fn test_invert_basis2() {
let a: Basis2<_> = rotation::a2();
let a = a * a.invert();
let a: &Matrix2<_> = a.as_ref();
assert!(a.is_identity());
}
#[test]
fn test_invert_basis3() {
let a: Basis3<_> = rotation::a3();
let a = a * a.invert();
let a: &Matrix3<_> = a.as_ref();
assert!(a.is_identity());
}