public void TestPlane()
{
var v3 = new Vector3(1, 2, 3);
var plane = new Plane(new Point3(0, 0, -10), new Vector3(0, 1, 0), new Vector3(1, 0, 0));
var mapped = plane.Map(new Point2(2, 5));
Assert.IsTrue(mapped.Z == -10);
Assert.IsTrue(mapped.X == 5);
Assert.IsTrue(mapped.Y == 2);
}