title: Raphael JS Pie Chart Labels
body: <p>I need to have labels on my pie chart and I am looking at the example
  of the pie chart: <a href="http://raphaeljs.com/pie.html" rel="nofollow">http://raphaeljs.com/pie.html</a>.</p>
  
  <p>In my implementation and on the example, the labels are not
  consistently the same distance away from the pie chart. Is there
  something wrong with the math used? It doesn't really make sense to
  me.</p>
  
  <p>txt = paper.text(cx + (r + delta + 55) * Math.cos(-popangle * rad), cy
  + (r + delta + 25) * Math.sin(-popangle * rad), labels[j])</p>
  
  <p>(Taken from <a href="http://raphaeljs.com/pie.js" rel="nofollow">http://raphaeljs.com/pie.js</a>) </p>