public static void Set(int id, double alt, double az, Color color) { Reticle reticle = null; if (Reticles.ContainsKey(id)) { reticle = Reticles[id]; } else { reticle = new Reticle(); Reticles.Add(id, reticle); } reticle.Id = id; reticle.Alt = alt; reticle.Az = az; reticle.Color = color; reticle.Visible.TargetState = true; }