PointF newPt = new PointF();
            PointF oldPt = new PointF();
            //x = Ax *  sin(OmegaX * t + PhiX)
            //y = Ay *  sin(OmegaY * t + PhiY)
            oldPt.X = (float)(ax * Math.Sin(omegax * 0 + phix));
            oldPt.Y = (float)(ay * Math.Sin(omegay * 0 + phiy));
            //flagPt, wenn noch kein punkt gezeichnet wurde

            for (float i = 0F; i < (float)(Math.PI * 2); i += 0.04F)
            {
                newPt.X = (float)(ax * Math.Sin(omegax * t + phix));
                newPt.Y = (float)(ay * Math.Sin(omegay * t + phiy));

                gr.DrawLine(new Pen(Color.Red, 0), oldPt, newPt);
                oldPt.X = newPt.X;
                oldPt.Y = newPt.Y;
            }