WPF: Getting new coordinates after a Rotation

Question

With reference to this programming game I am currently building.

alt text http://img12.imageshack.us/img12/2089/shapetransformationf.jpg

To translat

Answer 1

I use this method:

Point newPoint = rotateTransform.Transform(new Point(oldX, oldY));

where rotateTransform is the instance on which I work and set Angle...etc.