void UpdateReceiveData()
        {
            OIMSG msg = UDPClient.GetNewData();

            while (msg != null && msg.data != null && msg.data.Length != 0)
            {
                int packetID = -1;
                using (MemoryStream str = new MemoryStream(msg.data)) {
                    using (BinaryReader reader = new BinaryReader(str)) {
                        packetID = reader.ReadInt32();
                    }
                }

                if (packetID == 3)    // line point packet
                {
                    string  lineID;
                    int     pointID;
                    Vector3 pos;
                    LinePointSerializer.Deserialize(msg.data, out lineID, out pointID, out pos);
                    NewPoint(lineID, pointID, pos);
                }
                else if (packetID == 4)        // line settings packet
                {
                    string lineID;
                    Color  col;
                    float  width;
                    LineSettingsSerializer.Deserialize(msg.data, out lineID, out col, out width);
                    LineSettings(lineID, col, width);
                }
                else if (packetID == 5)        // line remove packet
                {
                    string lineID;
                    LineRemoveSerializer.Deserialize(msg.data, out lineID);
                    RemoveLine(lineID);
                }
                else if (packetID == 6)        // lines reset packet
                {
                    ResetLines();
                }
                msg = UDPClient.GetNewData();
            }
        }
 void RemoveLine(string lineID)
 {
     byte[] serialized = LineRemoveSerializer.Serialize(lineID);
     udpConnector.SendData(serialized);
 }