public GpxPointCollection <GpxPoint> ToGpxPoints() { GpxPointCollection <GpxPoint> points = new GpxPointCollection <GpxPoint>(); foreach (T gpxPoint in Points_) { GpxPoint point = new GpxPoint { Longitude = gpxPoint.Longitude, Latitude = gpxPoint.Latitude, Elevation = gpxPoint.Elevation, Time = gpxPoint.Time }; points.Add(point); } return(points); }