private void CreateLabel()
        {
            RemoveLabel();

            var lonlat = new JasVector3 {
                X = Longitude, Y = Latitude, Z = Altitude
            };
            var offset = new JasVector3 {
                X = 10, Y = 10, Z = 0
            };
            var text = "纬度: " + StringFormat.ConvertDigitalToDegrees(lonlat.Y) +
                       (lonlat.Y < 0 ? " S\n" : " N\n") +
                       "经度: " + StringFormat.ConvertDigitalToDegrees(lonlat.X) +
                       (lonlat.X < 0 ? " W\n" : " E\n") +
                       "高程: " + lonlat.Z.ToString(".00") + " M";

            CreateLabel(_sceneControl, lonlat, offset, text, _foreground, _frameColor);
        }