Add defaults for vec and point (#44)

CHANGELOG.md

@@ -7,9 +7,13 @@ This project adheres to [Semantic Versioning](http://semver.org/) as of version
 ## Unreleased Changes
 These changes are included in `master` but have not been released in a new crate version yet.
 
+## [v0.6.4]
+- Add `Default` impl to `Vectors`.
+- Add `Default` impl to `Points`.
+
 ## [v0.6.3]
-- Fix `to_scale_rotation_translation` function 
-- Add `from_scale_rotation_translation` function
+- Fix `to_scale_rotation_translation` function.
+- Add `from_scale_rotation_translation` function.
 
 ## [v0.6.2]
 - Fix `look_to_rh` function.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "al-jabr"
-version = "0.6.3"
+version = "0.6.4"
 authors = ["Matthew Plant <[email protected]>", "Øystein Hovind <[email protected]>"]
 edition = "2021"
 description = "An n-dimensional linear algebra library."

src/point.rs

@@ -92,6 +92,12 @@ macro_rules! implement_point {
             }
         }
 
+        impl<T: Zero> Default for $name<T> {
+            fn default() -> Self {
+                Self::origin()
+            }
+        }
+
         impl<T> IntoIterator for $name<T> {
             type Item = T;
             type IntoIter = std::array::IntoIter<T, $size>;

src/vector.rs

@@ -42,6 +42,15 @@ macro_rules! implement_vector {
             }
         }
 
+        impl<T> Default for $name<T>
+        where
+            T: Zero,
+        {
+            fn default() -> Self {
+                Self::zero()
+            }
+        }
+
         impl<T> From<[T; $size]> for $name<T> {
             fn from(arr: [T; $size]) -> Self {
                 let [ x, $( $field, )* ] = arr;