title: Animating a polyline's appearance using SVG animate
body: <p>I am working with SVG in HTML to define specific shapes using the polyline tool. I am looking to animate the appearance of a specific shape into a different shape at the touch of a button and over a few seconds.</p>
  
  <p>I have been looking at using the animate tool to change the polylines points attribute, but have so far been unable to find a solution or something that works perfectly.</p>
  
  <p>Is it possible to do this? If not, is there a viable alternative?</p>