Path animation is to make an object move around the motion path of the specified Path animation
For chestnuts
Use Blend to set the path animation is very simple
First, the pen tool showing a circular object point a new line
Right then set the path of the stroke movement path
effect
Forever storyboard can be set so that the movement has been in circulation
<Storyboard x:Key="Storyboard1" RepeatBehavior="Forever">