         'L', coord(endTangent(radius)),
         'A', arcRadius + radius, arcRadius + radius, 0, 0, negativeSweep, coord(startTangent(radius))
       ].join(' ')
-      
+
     @apex =
       x: cx,
       y: if cy > 0 then cy - arcRadius else cy + arcRadius

    negativeSweep = if startAttach.y < 0 then 0 else 1

    @outline = (shortCaptionLength) ->
      if endAttach.x < 0
        return null

      if captionLayout is 'external'
        captionSweep = shortCaptionLength / arcRadius

      sweepAngle = 2 * Math.PI - sweepAngle

    @shaftLength = sweepAngle * arcRadius
    if startAngle > endAngle
      @shaftLength = 0

    midShaftAngle = (startAngle + endAngle) / 2
