public void SetBild(PointF LinksOben, float ppm, Size Size) { b = new Bitmap(Size.Width, Size.Height); g = b.GetHighGraphics(); this.LinksOben = LinksOben; this.ppm = ppm; this.Size = Size; this.RechtsUnten = LinksOben.add(Size.Width / ppm, Size.Height / ppm); }