From bcca8d86161b0fc50f6c808b4d7f07d831a1fa93 Mon Sep 17 00:00:00 2001
From: Andrey Ermilkin <andreyermilkin@spintrak.com>
Date: Sun, 11 Apr 2021 16:29:37 -0400
Subject: [PATCH 1/2] Scaling Vector is not commutative

---
 tests/Avalonia.Visuals.UnitTests/VectorTests.cs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/Avalonia.Visuals.UnitTests/VectorTests.cs b/tests/Avalonia.Visuals.UnitTests/VectorTests.cs
index 0e72cd7c7f..f9a9e59436 100644
--- a/tests/Avalonia.Visuals.UnitTests/VectorTests.cs
+++ b/tests/Avalonia.Visuals.UnitTests/VectorTests.cs
@@ -105,5 +105,15 @@ namespace Avalonia.Visuals.UnitTests
 
             Assert.Equal(expected, Vector.Multiply(vector, 2));
         }
+
+        [Fact]
+        public void Scale_Vector_Should_Be_Commutative()
+        {
+            var vector = new Vector(10, 2);
+
+            var expected = vector * 2;
+
+            Assert.Equal(expected, 2 * vector);
+        }
     }
 }

From 323d975dad07a59fa286e75cc4d5cd05f5352d82 Mon Sep 17 00:00:00 2001
From: Andrey Ermilkin <andreyermilkin@spintrak.com>
Date: Sun, 11 Apr 2021 16:34:12 -0400
Subject: [PATCH 2/2] Fixes Vector test for scale commutativeness.

---
 src/Avalonia.Visuals/Vector.cs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/Avalonia.Visuals/Vector.cs b/src/Avalonia.Visuals/Vector.cs
index 1b9f5c67d5..79c4202be4 100644
--- a/src/Avalonia.Visuals/Vector.cs
+++ b/src/Avalonia.Visuals/Vector.cs
@@ -82,6 +82,15 @@ namespace Avalonia
         public static Vector operator *(Vector vector, double scale)
             => Multiply(vector, scale);
 
+        /// <summary>
+        /// Scales a vector.
+        /// </summary>
+        /// <param name="vector">The vector.</param>
+        /// <param name="scale">The scaling factor.</param>
+        /// <returns>The scaled vector.</returns>
+        public static Vector operator *(double scale, Vector vector)
+            => Multiply(vector, scale);
+
         /// <summary>
         /// Scales a vector.
         /// </summary>