Rotation animation problem

Question

Hello

I was traying to animate a rotation by using the following code:

RotateTransform3D myRotateTransform = new RotateTransform3D(new AxisAngleRotation3D(new Vector3D(0, 1, 0), 1));

Vector3DAnimation myVectorAnimation = new Vector3DAnimation(new Vector3D(0, -1, 0), new Duration(TimeSpan.FromMilliseconds(1000)));
   myRotateTransform.Rotation.BeginAnimation(AxisAngleRotation3D.AxisProperty, myVectorAnimation);
 

But none animation happens. How to solve the problem?

Thanks