Example Code |
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Example of telling the server to stream data as 3D coordinates using single precision and then read data from stream:
struct HDR_S { char cType; char cVersion; unsigned int dwFrameNo; short int nPoints; };
int nBytesSent = send( socket, "F31\r", 4, 0 ); if ( nBytesSent < 4 ) { Error( "Error sending 'F' command to Streaming Server" ); return FALSE; }
nBytesSent = send( socket, "B\r", 2, 0 ); if ( nBytesSent < 4 ) { Error( "Error sending 'B' command to Streaming Server" ); return FALSE; }
HDR_S stHdr; float fPoints[255][3]; int nBytesRead;
while ( TRUE ) { nBytesRead = recv( socket, (char*)&stHdr, sizeof( HDR_S ), 0 );
if ( nBytesRead < sizeof( HDR_S ) ) break; if ( ( stHdr.cType != '3' ) || ( stHdr.cVersion != '1' ) ) break;
int nBytesToRead = stHdr.nPoints * ( 3 * sizeof( float ) );
nBytesRead = recv( socket, (char*)&fPoints[0][0], nBytesToRead, 0 );
if ( nBytesRead < nBytesToRead ) break;
// Process the 3D Data Points . . . for ( int I = 0; I < stHdr.nPoints; i++ ) { float x = fPoints[i][0]; float y = fPoints[i][1]; float z = fPoints[i][2];
DoWhatWeNeedToDoWithThe3DData( x, y, z ); } }
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