void logMotionData() {
IEE_MotionDataUpdateHandle(0, motionDataHandle);
unsigned int samplesTaken = 0;
IEE_MotionDataGetNumberOfSample(motionDataHandle, & samplesTaken);
for (int i = samplesTaken; i > 0; i--) {
for (int j = 0; j < NUMBER_OF_CHANNELS; j++) {
double * data = new double[samplesTaken];
IEE_MotionDataGet(motionDataHandle, motionDataChannels[j], data, samplesTaken);
std::cout << data[i] << ", ";
delete[] data;
}
std::cout << "\n";
}
}
int main(int argc, char** argv) {
EmoEngineEventHandle eEvent = IEE_EmoEngineEventCreate();
EmoStateHandle eState = IEE_EmoStateCreate();
unsigned int userID = 0;
float secs = 1;
unsigned int datarate = 0;
bool readytocollect = false;
int state = 0;
try {
if (argc != 2) {
throw std::runtime_error("Please supply the log file name.\n"
"Usage: MotionDataLogger [log_file_name].");
}
std::cout << "==================================================================="
<< std::endl;
std::cout << "Example to show how to log Motion Data from EmoDriver."
<< std::endl;
std::cout << "==================================================================="
<< std::endl;
if (IEE_EngineConnect() != EDK_OK)
throw std::runtime_error("Emotiv Driver start up failed.");
std::cout << "Start receiving IEEG Data! "
<< "Press any key to stop logging...\n"
<< std::endl;
std::ofstream ofs(argv[1],std::ios::trunc);
ofs << header << std::endl;
DataHandle hMotionData = IEE_MotionDataCreate();
IEE_MotionDataSetBufferSizeInSec(secs);
std::cout << "Buffer size in secs:" << secs << std::endl;
while (!_kbhit()) {
state = IEE_EngineGetNextEvent(eEvent);
if (state == EDK_OK) {
IEE_Event_t eventType = IEE_EmoEngineEventGetType(eEvent);
IEE_EmoEngineEventGetUserId(eEvent, &userID);
// Log the EmoState if it has been updated
if (eventType == IEE_UserAdded) {
std::cout << "User added";
readytocollect = true;
}
}
if (readytocollect) {
IEE_MotionDataUpdateHandle(0, hMotionData);
unsigned int nSamplesTaken=0;
IEE_MotionDataGetNumberOfSample(hMotionData, &nSamplesTaken);
std::cout << "Updated " << nSamplesTaken << std::endl;
if (nSamplesTaken != 0) {
double* data = new double[nSamplesTaken];
for (int sampleIdx=0 ; sampleIdx<(int)nSamplesTaken ; ++ sampleIdx) {
for (int i = 0 ;
i<sizeof(targetChannelList)/sizeof(IEE_MotionDataChannel_t) ;
i++) {
IEE_MotionDataGet(hMotionData, targetChannelList[i],
data, nSamplesTaken);
ofs << data[sampleIdx] << ",";
}
ofs << std::endl;
}
delete[] data;
}
}
#ifdef _WIN32
Sleep(1);
#endif
#ifdef __linux__
usleep(10000);
#endif
}
ofs.close();
IEE_MotionDataFree(hMotionData);
}
catch (const std::runtime_error& e) {
std::cerr << e.what() << std::endl;
std::cout << "Press any key to exit..." << std::endl;
getchar();
}
IEE_EngineDisconnect();
IEE_EmoStateFree(eState);
IEE_EmoEngineEventFree(eEvent);
return 0;
}
