1 files changed, 114 insertions, 0 deletions
diff --git a/Xamarin.Forms.Core.UITests.Shared/Utilities/NumericExtensions.cs b/Xamarin.Forms.Core.UITests.Shared/Utilities/NumericExtensions.cs
new file mode 100644
index 00000000..353856d1
--- /dev/null
+++ b/Xamarin.Forms.Core.UITests.Shared/Utilities/NumericExtensions.cs
@@ -0,0 +1,114 @@
+using System;
+
+namespace Xamarin.Forms.Core.UITests
+{
+	internal class Matrix : Object
+	{
+		public double M00, M01, M02, M03;
+		public double M10, M11, M12, M13;
+		public double M20, M21, M22, M23;
+		public double M30, M31, M32, M33;
+
+		public void Log () {
+
+			//Logger.LogLine ();
+
+			//Logger.LogLine (string.Format ("{0,-3}, {1,-3}, {2,-3}, {3,-3}", M00, M01, M02, M03));
+			//Logger.LogLine (string.Format ("{0,-3}, {1,-3}, {2,-3}, {3,-3}", M10, M11, M12, M13));
+			//Logger.LogLine (string.Format ("{0,-3}, {1,-3}, {2,-3}, {3,-3}", M20, M21, M22, M23));
+			//Logger.LogLine (string.Format ("{0,-3}, {1,-3}, {2,-3}, {3,-3}", M30, M31, M32, M33));
+
+			//Logger.LogLine ();
+		}
+
+		public override bool Equals (object obj)
+		{
+			if (obj == null)
+				return false;
+
+			var transform = obj as Matrix;
+			if ((Object)transform == null)
+				return false;
+
+			const double tolerance = 0.01;
+			bool result = 
+				Math.Abs (M00 - transform.M00) < tolerance &&
+				Math.Abs (M01 - transform.M01) < tolerance &&
+				Math.Abs (M02 - transform.M02) < tolerance &&
+				Math.Abs (M03 - transform.M03) < tolerance &&
+				Math.Abs (M10 - transform.M10) < tolerance &&
+				Math.Abs (M11 - transform.M11) < tolerance &&
+				Math.Abs (M12 - transform.M12) < tolerance &&
+				Math.Abs (M13 - transform.M13) < tolerance &&
+				Math.Abs (M20 - transform.M20) < tolerance &&
+				Math.Abs (M21 - transform.M21) < tolerance &&
+				Math.Abs (M22 - transform.M22) < tolerance &&
+				Math.Abs (M23 - transform.M23) < tolerance &&
+				Math.Abs (M30 - transform.M30) < tolerance &&
+				Math.Abs (M31 - transform.M31) < tolerance &&
+				Math.Abs (M32 - transform.M32) < tolerance &&
+				Math.Abs (M33 - transform.M33) < tolerance;
+
+			return result;
+		}
+
+		public override int GetHashCode ()
+		{
+			return 0;
+		}
+	}
+
+	internal enum Axis 
+	{
+		X,
+		Y,
+		Z
+	}
+		
+	internal static class NumericExtensions
+	{
+		public static double ToRadians(this float val)
+		{
+			return (Math.PI / 180.0) * val;
+		}
+
+		public static Matrix CalculateRotationMatrixForDegrees (float degrees, Axis rotationAxis) 
+		{
+			var angle = degrees.ToRadians ();
+
+			var transform = new Matrix ();
+			if (rotationAxis == Axis.X) {
+				transform.M00 = 1; transform.M01 = 0; transform.M02 = 0; transform.M03 = 0;
+				transform.M10 = 0; transform.M11 = (float) Math.Cos (angle); transform.M12 = (float) Math.Sin (angle); transform.M13 = 0;
+				transform.M20 = 0; transform.M21 = -(float) Math.Sin (angle); transform.M22 = (float) Math.Cos (angle); transform.M23 = 0;
+				transform.M30 = 0; transform.M31 = 0; transform.M32 = 0; transform.M33 = 1;
+			} else if (rotationAxis == Axis.Y) {
+				transform.M00 = (float) Math.Cos (angle); transform.M01 = 0; transform.M02 = -(float) Math.Sin (angle); transform.M03 = 0;
+				transform.M10 = 0; transform.M11 = 1; transform.M12 = 0; transform.M13 = 0;
+				transform.M20 = (float) Math.Sin (angle); transform.M21 = 0; transform.M22 = (float) Math.Cos (angle); transform.M23 = 0;
+				transform.M30 = 0; transform.M31 = 0; transform.M32 = 0; transform.M33 = 1;
+			} else {
+				transform.M00 = (float) Math.Cos (angle); transform.M01 = (float) Math.Sin (angle); transform.M02 = 0; transform.M03 = 0;
+				transform.M10 = -(float) Math.Sin (angle); transform.M11 = (float) Math.Cos (angle); transform.M12 = 0; transform.M13 = 0;
+				transform.M20 = 0; transform.M21 = 0; transform.M22 = 1; transform.M23 = 0;
+				transform.M30 = 0; transform.M31 = 0; transform.M32 = 0; transform.M33 = 1;
+			}
+
+			return transform;
+		}
+
+		public static Matrix BuildScaleMatrix (float scale) 
+		{
+			var transform = new Matrix ();
+
+			transform.M00 = scale; transform.M01 = 0; transform.M02 = 0; transform.M03 = 0;
+			transform.M10 = 0; transform.M11 = scale; transform.M12 = 0; transform.M13 = 0;
+			transform.M20 = 0; transform.M21 = 0; transform.M22 = scale; transform.M23 = 0;
+			transform.M30 = 0; transform.M31 = 0; transform.M32 = 0; transform.M33 = 1;
+
+			return transform;
+		}
+
+	}
+
+}
+\ No newline at end of file