ArcGISWindowsPhoneSDK.AddGraphics.AddLineGraphics C# (CSharp) Метод

        private void AddLineGraphics()
        {
            string geoRSSLine = @"<?xml version='1.0' encoding='utf-8'?>
                                    <feed xmlns='http://www.w3.org/2005/Atom' xmlns:georss='http://www.georss.org/georss'>
                                    <georss:line>-118.169, 34.016, -104.941, 39.7072, -96.724, 32.732</georss:line>
                                    <georss:line>-28.69, 14.16, -14.91, 23.702, -1.74, 13.72</georss:line>
                                </feed>";

            List<ESRI.ArcGIS.Client.Geometry.Polyline> polylineList = new List<ESRI.ArcGIS.Client.Geometry.Polyline>();

            using (System.Xml.XmlReader xmlReader = System.Xml.XmlReader.Create(new System.IO.StringReader(geoRSSLine)))
            {
                while (xmlReader.Read())
                {
                    switch (xmlReader.NodeType)
                    {
                        case System.Xml.XmlNodeType.Element:
                            string nodeName = xmlReader.Name;
                            if (nodeName == "georss:line")
                            {
                                string lineString = xmlReader.ReadElementContentAsString();

                                string[] lineCoords = lineString.Split(',');

                                ESRI.ArcGIS.Client.Geometry.PointCollection pointCollection = new ESRI.ArcGIS.Client.Geometry.PointCollection();
                                for (int i = 0; i < lineCoords.Length; i += 2)
                                {
                                    MapPoint mp = new MapPoint(Convert.ToDouble(lineCoords[i]), Convert.ToDouble(lineCoords[i + 1]));
                                    MapPoint conv_mp = wm.FromGeographic(mp) as MapPoint;
                                    pointCollection.Add(conv_mp);
                                }

                                ESRI.ArcGIS.Client.Geometry.Polyline polyline = new ESRI.ArcGIS.Client.Geometry.Polyline();
                                polyline.Paths.Add(pointCollection);

                                polylineList.Add(polyline);

                            }
                            break;
                    }
                }
            }

            GraphicsLayer graphicsLayer = MyMap.Layers["MyGraphicsLayer"] as GraphicsLayer;

            foreach (ESRI.ArcGIS.Client.Geometry.Polyline polyline in polylineList)
            {
                Graphic graphic = new Graphic()
                {
                    Symbol = DefaultLineSymbol,
                    Geometry = polyline
                };

                graphicsLayer.Graphics.Add(graphic);
            }
        }