protected void InvalidateLink(Point[] points, int width, bool realTime) { if (points == null || points.Length != 4) { return; } var region = BezierHelper.GetBezierUpdateRegion( View.PointToReal(points[0]), View.PointToReal(points[1]), View.PointToReal(points[2]), View.PointToReal(points[3]), width); InvalidateChart(region, realTime); }