/// <summary> /// Adds the sphere. /// </summary> /// <param name="center"> /// The center. /// </param> /// <param name="radius"> /// The radius. /// </param> public void AddSphere(Point3D center, double radius) { for (int i = 0; i < this.Positions.Length; i++) { var c = new SphereConstraint(i, center, radius); this.Constraints.Add(c); } }