title: c# wpf rotate animation for pie slice (drawn using PathGeometry)
body: <p>Is there anyway for me to have a rotate animation for a PathGeometry that consists of arc and line segments (a pie) from angle A to angle B?</p>
  
  <p>The PathGeometry is drawn using c# instead of xaml, so answers in c# instead of xaml will be appreciated and the animation is required to be played when  it's loaded.</p>