Initial Commit

This is faster:
```
polyline = pontSet.map (point, index) -> @getPoint index, dimensions, pointSet, pointCount
if filled
  polyline.unshift "0,#{dimensions.height} "
  polyline.push "#{Math.floor @getPointX(pointSet.length - 1, dimensions.width, pointCount)},#{dimensions.height}"

return polyline.join ''
```