val k = 5*r.nextDouble() + 1
    val period = 50000
    val radius = 5
    val t0 = 0
    def translate(t:Long) = {
      import math.{sin, cos}
      val a = (t + t0)*(Angles.Tau/period)
      val x = radius*(k*sin(a)*cos(k*a) + cos(a)*sin(k*a))//radius * f(k*a) * g(a)
      val y = radius*(k*cos(a)*cos(k*a) - sin(a)*sin(k*a))//radius * f(k*a) * f(a)
      println(Point2d(x, y))
      Point2d(x, y)
    }
    new PlateTranslator(translate)