public CurveGraphics DrawCurve(
            object curve,
            GraphicsNode node)
        {
            try
            {
                AdnGraphics graphicsData = WorkingGraphics;

                if (node == null)
                {
                    node = graphicsData.ClientGraphics.AddNode(
                        graphicsData.GetGraphicNodeFreeId());
                }

                CurveGraphics graphic = node.AddCurveGraphics(curve);

                return(graphic);
            }
            catch
            {
                return(null);
            }
        }
        public CurveGraphics DrawCurve(
            object curve,
            GraphicsNode node)
        {
            try
            {
                AdnGraphics graphicsData = WorkingGraphics;

                if (node == null)
                {
                    node = graphicsData.ClientGraphics.AddNode(
                        graphicsData.GetGraphicNodeFreeId());
                }

                CurveGraphics graphic = node.AddCurveGraphics(curve);

                return graphic;
            }
            catch
            {
                return null;
            }
        }