SuperMap.WindowsPhone.Mapping.Map.panLayerToMap C# (CSharp) Method

        private Point2D panLayerToMap(Point pnt)
        {
            if ((!Point2D.IsNullOrEmpty(this.origin)) && !double.IsNaN(this.mapResolution))
            {
                return new Point2D((pnt.X * this.mapResolution) + this.origin.X, this.origin.Y - (pnt.Y * this.mapResolution));
            }
            return Point2D.Empty;
        }