protected override void ApplyInvertedDrawing(IList <Rectangle> updates) { var point = this.Command.Point; int startAngle = Command.StartAngle; int endAngle = Command.EndAngle; if (startAngle > endAngle) { var t = startAngle; startAngle = endAngle; endAngle = t; } this.BGI.Ellipse(point.X, point.Y, startAngle, endAngle, Command.Radius.Width, Command.Radius.Height, updates); this.BGI.Line(point, point + BGICanvas.GetAngleSize(startAngle, Command.Radius), updates); this.BGI.Line(point, point + BGICanvas.GetAngleSize(endAngle, Command.Radius), updates); ApplyHandles(updates); }