System.Drawing.Drawing2D.PathGradientBrush.RotateTransform C# (CSharp) Method

        public void RotateTransform(float angle)
        {
            this.RotateTransform(angle, MatrixOrder.Prepend);
        }

		public void Transform_Operations ()
		{
			using (PathGradientBrush pgb = new PathGradientBrush (pts_2f, WrapMode.Clamp)) {
				Matrix clone = pgb.Transform.Clone ();
				Matrix mul = clone.Clone ();

				clone.Multiply (mul, MatrixOrder.Append);
				pgb.MultiplyTransform (mul, MatrixOrder.Append);
				Assert.AreEqual (pgb.Transform, clone, "Multiply/Append");

				clone.Multiply (mul, MatrixOrder.Prepend);
				pgb.MultiplyTransform (mul, MatrixOrder.Prepend);
				Assert.AreEqual (pgb.Transform, clone, "Multiply/Prepend");

				clone.Rotate (45, MatrixOrder.Append);
				pgb.RotateTransform (45, MatrixOrder.Append);
				Assert.AreEqual (pgb.Transform, clone, "Rotate/Append");

				clone.Rotate (45, MatrixOrder.Prepend);
				pgb.RotateTransform (45, MatrixOrder.Prepend);
				Assert.AreEqual (pgb.Transform, clone, "Rotate/Prepend");

				clone.Scale (0.25f, 2, MatrixOrder.Append);
				pgb.ScaleTransform (0.25f, 2, MatrixOrder.Append);
				Assert.AreEqual (pgb.Transform, clone, "Scale/Append");

				clone.Scale (0.25f, 2, MatrixOrder.Prepend);
				pgb.ScaleTransform (0.25f, 2, MatrixOrder.Prepend);
				Assert.AreEqual (pgb.Transform, clone, "Scale/Prepend");

				clone.Translate (10, 20, MatrixOrder.Append);
				pgb.TranslateTransform (10, 20, MatrixOrder.Append);
				Assert.AreEqual (pgb.Transform, clone, "Translate/Append");

				clone.Translate (30, 40, MatrixOrder.Prepend);
				pgb.TranslateTransform (30, 40, MatrixOrder.Prepend);
				Assert.AreEqual (pgb.Transform, clone, "Translate/Prepend");

				clone.Reset ();
				pgb.ResetTransform ();
				Assert.AreEqual (pgb.Transform, clone, "Reset");
			}
		}