Read the data from tcp server

6 次查看（过去 30 天）
david
david 2014-11-5
I want to read bvh data from Mocap server and display it in Matlab in realtime, the Mocap server will keep push realtime data to a tcp client if you are connected. With C# I will use networkstream to read the bvh data like this.
string ip=ConfigurationManager.AppSettings["mocap_ip"];
int port=Convert.ToInt32( ConfigurationManager.AppSettings["mocap_port"]);
bool showlog = debug;
Socket socket;
IPEndPoint maxPort = new IPEndPoint(IPAddress.Parse(ip), port);
socket =
new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
socket.Connect(maxPort);
}
catch (Exception e)
{
if (!socket.Connected)
{
//Console.WriteLine("Cant connect to mocap server, please restart this application when mocap server started.\n exception is" + e.ToString());
return;
}
}
myNetworkStream = new NetworkStream(socket);
if (myNetworkStream.CanRead)
{
while (myNetworkStream.CanRead && sending)
{
byte[] myReadBuffer = new byte[1024];
StringBuilder myCompleteMessage = new StringBuilder();
int numberOfBytesRead = 0;
// Incoming message may be larger than the buffer size.
do
{
numberOfBytesRead = myNetworkStream.Read(myReadBuffer, 0, myReadBuffer.Length);
myCompleteMessage.AppendFormat("{0}", Encoding.ASCII.GetString(myReadBuffer, 0, numberOfBytesRead));
}
while (myNetworkStream.DataAvailable);
myCompleteMessage will be realtime bvh data back of each frame. But with Matlab, I used tcp connection to do it.
t = tcpip('localhost', 6001);
fopen(t);
pause(1)
t.ValuesReceived
while (get(t, 'BytesAvailable') > 0)
t.BytesAvailable
DataReceived = fscanf(t)
end
close(t);
delete(t);
clear t
The normal data I want get is something like below,every time we should receive only 1 frame data , I use "copy resource" to copy it from the Instrument Control Toolbox, while I create a connection under TCPIP section and Click Identify button.
127.0.0.1:7001 (0 0 0 0 0 -0 109.06 95.28 55.14 3.94 66.38 -1.05 -10.16 -0.19 -0.31 -10.89 14.11 -28.74 0.06 -44.60 -0.32 13.07 -2.08 61.12 0.25 -44.76 -0.07 -3.08 -14.76 -3.45 10.13 0.02 0.05 -2.75 4.17 -15.59 0.13 -44.51 0.23 0.83 7.69 23.96 -0.38 -44.53 0.53 12.38 -21.78 -8.59 -0.01 16.93 -0.08 -4.51 7.22 -0.22 -0.00 10.34 -0.06 -1.12 1.81 0.09 -0.04 10.78 0.04 -1.86 2.99 0.21 -0.00 10.35 -0.03 0.10 1.39 -0.07 -0.03 11.06 -0.06 0.10 1.41 -0.07 -0.01 7.00 -0.09 1.47 26.19 -2.00 -3.36 7.38 0.02 7.45 -0.93 1.19 -16.71 0.01) But when I click Read then I will get feedback like. Every data should start with six 0 and the result is with Read several frames data will receive same time and breakdown to next read.
So I was wondering if Indentify button works, there should be solution in Matlab. Thanks for your advice.

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