SuperMap.WindowsPhone.Actions.Edit.prepareMovePointFeature C# (CSharp) Method

        private void prepareMovePointFeature(Feature hoverFeature)
        {
            draggingVertex = hoverFeature;
            draggingVertex.Select();
            startTracking();
            startGeoPoint = ( hoverFeature.Geometry as GeoPoint ).Location;
        }
        private void prepareMoveLineOrRegionFeature(Point2D start)