Merge pull request #955 from qu1x/reflection

Add bias getter and alias for reflection.

src/geometry/mod.rs

@@ -73,6 +73,7 @@ mod transform_ops;
 mod transform_simba;
 
 mod reflection;
+mod reflection_alias;
 
 mod orthographic;
 mod perspective;
@@ -104,6 +105,7 @@ pub use self::transform::*;
 pub use self::transform_alias::*;
 
 pub use self::reflection::*;
+pub use self::reflection_alias::*;
 
 pub use self::orthographic::Orthographic3;
 pub use self::perspective::Perspective3;

src/geometry/reflection.rs

@@ -22,7 +22,7 @@ impl<T: ComplexField, S: Storage<T, Const<D>>, const D: usize> Reflection<T, Con
 }
 
 impl<T: ComplexField, D: Dim, S: Storage<T, D>> Reflection<T, D, S> {
-    /// Creates a new reflection wrt the plane orthogonal to the given axis and bias.
+    /// Creates a new reflection wrt. the plane orthogonal to the given axis and bias.
     ///
     /// The bias is the position of the plane on the axis. In particular, a bias equal to zero
     /// represents a plane that passes through the origin.
@@ -33,12 +33,21 @@ impl<T: ComplexField, D: Dim, S: Storage<T, D>> Reflection<T, D, S> {
         }
     }
 
-    /// The reflexion axis.
+    /// The reflection axis.
     #[must_use]
     pub fn axis(&self) -> &Vector<T, D, S> {
         &self.axis
     }
 
+    /// The reflection bias.
+    ///
+    /// The bias is the position of the plane on the axis. In particular, a bias equal to zero
+    /// represents a plane that passes through the origin.
+    #[must_use]
+    pub fn bias(&self) -> T {
+        self.bias
+    }
+
     // TODO: naming convention: reflect_to, reflect_assign ?
     /// Applies the reflection to the columns of `rhs`.
     pub fn reflect<R2: Dim, C2: Dim, S2>(&self, rhs: &mut Matrix<T, R2, C2, S2>)

src/geometry/reflection_alias.rs

@@ -0,0 +1,21 @@
+use crate::base::ArrayStorage;
+use crate::geometry::Reflection;
+use crate::Const;
+
+/// A 1-dimensional reflection.
+pub type Reflection1<T> = Reflection<T, Const<1>, ArrayStorage<T, 1, 1>>;
+
+/// A 2-dimensional reflection.
+pub type Reflection2<T> = Reflection<T, Const<2>, ArrayStorage<T, 2, 1>>;
+
+/// A 3-dimensional reflection.
+pub type Reflection3<T> = Reflection<T, Const<3>, ArrayStorage<T, 3, 1>>;
+
+/// A 4-dimensional reflection.
+pub type Reflection4<T> = Reflection<T, Const<4>, ArrayStorage<T, 4, 1>>;
+
+/// A 5-dimensional reflection.
+pub type Reflection5<T> = Reflection<T, Const<5>, ArrayStorage<T, 5, 1>>;
+
+/// A 6-dimensional reflection.
+pub type Reflection6<T> = Reflection<T, Const<6>, ArrayStorage<T, 6, 1>>;