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Fix comments on Quat::from_angle_{x|y|z} functions

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Lennart 2014-01-26 21:47:03 -08:00
parent ba71cb4a37
commit e9fcf971da
1 changed files with 3 additions and 3 deletions
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6
src/cgmath/quaternion.rs
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@ -47,21 +47,21 @@ Quat<S> {
Quat { s: s, v: v }
}
/// Create a matrix from a rotation around the `x` axis (pitch).
/// Create a quaternion from a rotation around the `x` axis (pitch).
#[inline]
pub fn from_angle_x(theta: Rad<S>) -> Quat<S> {
let (s, c) = sin_cos(theta.mul_s(cast(0.5).unwrap()));
Quat::new(c, s, zero(), zero())
}
/// Create a matrix from a rotation around the `y` axis (yaw).
/// Create a quaternion from a rotation around the `y` axis (yaw).
#[inline]
pub fn from_angle_y(theta: Rad<S>) -> Quat<S> {
let (s, c) = sin_cos(theta.mul_s(cast(0.5).unwrap()));
Quat::new(c, zero(), s, zero())
}
/// Create a matrix from a rotation around the `z` axis (roll).
/// Create a quaternion from a rotation around the `z` axis (roll).
#[inline]
pub fn from_angle_z(theta: Rad<S>) -> Quat<S> {
let (s, c) = sin_cos(theta.mul_s(cast(0.5).unwrap()));