Question

I need to conver little endian which is float to the big and send them through UDP. The code snipped receives coord data and assigns it to the float array, then converts to the byte data array and finaly should be send over UDP connection but it doesn’t work!

public void SendUDP()
    {
        try 
        {
            lockObj.EnterReadLock();
            try
            {   
                foreach(CoordData datam in coordDataList)
                {
                    float[] dfv = {datam.X, datam.Y, datam.Z, datam.Alpha, datam.Theta, datam.Phi};

                    /*
                    data = BitConverter.GetBytes(datam.Y);
                    data = BitConverter.GetBytes(datam.Z);
                    data = BitConverter.GetBytes(datam.Alpha);
                    data = BitConverter.GetBytes(datam.Theta);
                    data = BitConverter.GetBytes(datam.Phi);
                */
                data = BitConverter.GetBytes(dfv);  
                Array.Reverse(data);    

                }
                client.Send(data, data.Length, remoteEndPoint); 

            }
                finally
                {
                lockObj.ExitReadLock();

                }

                }

        catch (Exception err)
        {
            print(err.ToString());
        }
    }

Answer 1

Here is a solution for the problem:

    int width = sizeof(float);

    int nDataIndex = 0;
    byte[] data = new byte[myData.Count * width];

        for (int i = 0; i < myData.Count; ++i)
        {
            byte[] converted = BitConverter.GetBytes(myData[i]);

            if (BitConverter.IsLittleEndian)
            {
                Array.Reverse(converted);
            }

            for (int j = 0; j < width; ++j)
            { 

                data[nDataIndex+j] = converted[j];          
            }
            nDataIndex+=width;
        }

        client.Send(data, data.Length, remoteEndPoint);