Method TestLocalToWorld

Source/Engine/Tests/TestTransform.cs:47–74

Tests the local space to world space conversion.

()

        /// Tests the local space to world space conversion.
        /// </summary>
        [Test]
        public void TestLocalToWorld()
        {
            Transform t1 = new Transform(new Vector3(10, 1, 10), Quaternion.Euler(45, 0, -15), new Float3(1.5f, 0.5f, 0.1f));
            Transform t2 = new Transform(new Vector3(0, 20, 0), Quaternion.Euler(0, 0, 15), new Float3(1.0f, 2.0f, 1.0f));

            Transform a1 = t1.LocalToWorld(t2);
            Vector3 a2 = t1.LocalToWorld(t2.Translation);

            Vector3 a3;
            {
                Vector3 result;
                Matrix scale, rotation, scaleRotation;
                Matrix.Scaling(ref t1.Scale, out scale);
                Matrix.RotationQuaternion(ref t1.Orientation, out rotation);
                Matrix.Multiply(ref scale, ref rotation, out scaleRotation);
                Vector3.Transform(ref t2.Translation, ref scaleRotation, out result);
                a3 = result + t1.Translation;
            }

            var a4T = new Vector3[1];
            t1.LocalToWorld(new Vector3[1] { t2.Translation }, a4T);
            Vector3 a4 = a4T[0];

            Assert.IsTrue(Vector3.NearEqual(a1.Translation, a2));
            Assert.IsTrue(Vector3.NearEqual(a2, a3));
            Assert.IsTrue(Vector3.NearEqual(a2, a4));
        }

        /// <summary>
        /// Tests the world space to local space conversion.