怎么将List<PointF> pointsA转换为pointsA[]？

怎样将List<PointF> pointsA转换为pointsA[]？？
定义的list：
  List<PointF> pointsA = new List<PointF>();
  pointsA.Add(new PointF (1,1));
  pointsA.Add(new PointF (1,1.5F));
  pointsA.Add(new PointF (2,2));
  pointsA.Add(new PointF (3,4));
  pointsA.Add(new PointF (6,5.5F));
  pointsA.Add(new PointF (9,9));
画折线的函数：g.DrawLines(pen,this.pointsA);要求pointsA为point[]类，
求转换方法！有其他解决方法也可！谢谢！！

[解决办法]
g.DrawLines(pen, this.pointsA.Select(x => new Point(x.X, x.Y)).ToArray());