# Sort the vertices in counter clockwise order
	#
	# ~~~
	# var p1 = new Point[Float](0.0, 0.0)
	# var p2 = new Point[Float](5.0, 0.0)
	# var p3 = new Point[Float](0.0, 5.0)
	# var p4 = new Point[Float](5.0, 5.0)
	# var arr = new Array[Point[Float]].with_items(p1, p2, p3, p4)
	# var poly = new ConvexPolygon(arr)
	# poly.sort_ccw
	# assert poly.points == [p4, p2, p1, p3]
	# ~~~
	fun sort_ccw do
		var sorter = new CounterClockWiseSort.with_center(vertices)
		sorter.sort(points)
	end