public void TransformToCoordSystemTest()
            {
                Vector local = new Vector (2, 0, 0);
                Vector aor = new Vector (0, 0, Math.PI / 2);
                Vector pos = new Vector (5, 7, 0);

                Vector glob = local.TransformToCoordSystem (aor, pos);

                Assert.AreEqual (5, glob.X, 0.001);
                Assert.AreEqual (9, glob.Y, 0.001);
                Assert.AreEqual (0, glob.Z, 0.001);
            }