title: "Drawing" an arc in discrete x-y steps
body: <p>What's the best way to draw an arc using only x-y position movements? For example let's say I want to draw a circle with radius 4 at point (4,4). Let's saw my "drawer" starts at (4,0) and a resolution of .1 steps in each direction. How would I create a sequence of movements to complete the circle?</p>
  
  <p>If that's not clear I can try to explain better.</p>