Rename look_at to look_to in Rotation trait

Author: elrnv

src/quaternion.rs

@@ -474,7 +474,7 @@ impl<S: BaseFloat> From<Quaternion<S>> for Basis3<S> {
 
 impl<S: BaseFloat> Rotation<Point3<S>> for Quaternion<S> {
     #[inline]
-    fn look_at(dir: Vector3<S>, up: Vector3<S>) -> Quaternion<S> {
+    fn look_to(dir: Vector3<S>, up: Vector3<S>) -> Quaternion<S> {
         Matrix3::look_at(dir, up).into()
     }
 

src/rotation.rs

@@ -40,7 +40,13 @@ where
     Self: iter::Product<Self>,
 {
     /// Create a rotation to a given direction with an 'up' vector.
-    fn look_at(dir: P::Diff, up: P::Diff) -> Self;
+    #[deprecated = "Use Rotation::look_to"]
+    fn look_at(dir: P::Diff, up: P::Diff) -> Self {
+        Self::look_to(dir, up)
+    }
+
+    /// Create a rotation to a given direction with an 'up' vector.
+    fn look_to(dir: P::Diff, up: P::Diff) -> Self;
 
     /// Create a shortest rotation to transform vector 'a' into 'b'.
     /// Both given vectors are assumed to have unit length.
@@ -185,7 +191,7 @@ impl<'a, S: 'a + BaseFloat> iter::Product<&'a Basis2<S>> for Basis2<S> {
 
 impl<S: BaseFloat> Rotation<Point2<S>> for Basis2<S> {
     #[inline]
-    fn look_at(dir: Vector2<S>, up: Vector2<S>) -> Basis2<S> {
+    fn look_to(dir: Vector2<S>, up: Vector2<S>) -> Basis2<S> {
         Basis2 {
             mat: Matrix2::look_to(dir, up),
         }
@@ -336,7 +342,7 @@ impl<'a, S: 'a + BaseFloat> iter::Product<&'a Basis3<S>> for Basis3<S> {
 
 impl<S: BaseFloat> Rotation<Point3<S>> for Basis3<S> {
     #[inline]
-    fn look_at(dir: Vector3<S>, up: Vector3<S>) -> Basis3<S> {
+    fn look_to(dir: Vector3<S>, up: Vector3<S>) -> Basis3<S> {
         Basis3 {
             mat: Matrix3::look_at(dir, up),
         }