title: Flutter drawArc with no center point
body: <p>In the flutter documentation its states, </p>
  
  <blockquote>
    <p>If useCenter is true, the arc is closed back to the center, forming a
    circle sector. Otherwise, the arc is not closed, forming a circle
    segment.</p>
  </blockquote>
  
  <p>I don't want to use either of those, I just want to draw the outside perimeter of the curve (Path).
  To explain it better, what I'm trying to achieve is as per the image on the right.</p>
  
  <p><a href="https://i.stack.imgur.com/62d1w.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/62d1w.png" alt="enter image description here"></a></p>
  
  <p>I know I can do a fill, but I want a transparent center. Is there another technique that I can use?</p>