aistudio-wpf-diagram/AIStudio.Wpf.DiagramDesigner/Helpers/PointHelper.cs

using AIStudio.Wpf.DiagramDesigner.Geometry;

namespace AIStudio.Wpf.DiagramDesigner
{
    public class PointHelper
    {
        public static PointBase GetPointForConnector(FullyCreatedConnectorInfo connector)
        {
            PointBase point = new PointBase();
            if (connector == null)
            {
                return point;
            }

            if (connector.IsInnerPoint)
            {
                point = new PointBase(connector.DataItem.Left + connector.DataItem.ItemWidth * connector.XRatio,
                        connector.DataItem.Top + connector.DataItem.ItemHeight * connector.YRatio);
            }
            else
            {

                switch (connector.Orientation)
                {
                    case ConnectorOrientation.Top:
                        point = new PointBase(connector.DataItem.Left + (connector.DataItem.ItemWidth / 2), connector.DataItem.Top);
                        break;
                    case ConnectorOrientation.Bottom:
                        point = new PointBase(connector.DataItem.Left + (connector.DataItem.ItemWidth / 2), (connector.DataItem.Top + connector.DataItem.ItemHeight));
                        break;
                    case ConnectorOrientation.Right:
                        point = new PointBase(connector.DataItem.Left + connector.DataItem.ItemWidth, connector.DataItem.Top + (connector.DataItem.ItemHeight / 2));
                        break;
                    case ConnectorOrientation.Left:
                        point = new PointBase(connector.DataItem.Left, connector.DataItem.Top + (connector.DataItem.ItemHeight / 2));
                        break;
                }
            }
            return point;
        }


    }
}