Paul Splitzer has put together a nifty class that plots Bezier curves with actionscript. The Bezier Plotter Class was the result of trying to animate a movie clip along a u shaped path with actionscript. The Bezier Plotter Class will plot points along a bezier path based on four points. If you are not familiar with bezier curves hop on Google and search for ‘bezier’. There is plenty of stuff out there to get you started.
An interactive demo is at the listed link, though the bezier functionality is our own implementation.