#include "stdafx.h" #include "cphidgetspatial.h" #include "cusb.h" #include "math.h" #include "csocket.h" #include "cthread.h" // === Internal Functions === // static double getCorrectedField(CPhidgetSpatialHandle phid, double fields[], int axis); //clearVars - sets all device variables to unknown state CPHIDGETCLEARVARS(Spatial) int i = 0; phid->dataRateMin = PUNI_INT; phid->dataRate = PUNI_INT; phid->dataRateMax = PUNI_INT; phid->accelerationMax = PUNI_DBL; phid->accelerationMin = PUNI_DBL; phid->angularRateMax = PUNI_DBL; phid->angularRateMin = PUNI_DBL; phid->magneticFieldMax = PUNI_DBL; phid->magneticFieldMin = PUNI_DBL; phid->interruptRate = PUNI_INT; phid->spatialDataNetwork = PUNI_BOOL; for (i = 0; iaccelAxis[i] = PUNI_DBL; } for (i = 0; igyroAxis[i] = PUNI_DBL; } for (i = 0; icompassAxis[i] = PUNI_DBL; } return EPHIDGET_OK; } //initAfterOpen - sets up the initial state of an object, reading in packets from the device if needed // used during attach initialization - on every attach CPHIDGETINIT(Spatial) int i = 0; TESTPTR(phid); //Setup max/min values switch(phid->phid.deviceIDSpec) { case PHIDID_SPATIAL_ACCEL_3AXIS: if (phid->phid.deviceVersion < 200) { phid->accelerationMax = 5.1; phid->accelerationMin = -5.1; phid->interruptRate = 8; phid->dataRateMin = SPATIAL_MIN_DATA_RATE; phid->dataRate = phid->interruptRate; phid->dataRateMax = 1; //actual data rate phid->angularRateMax = 0; phid->angularRateMin = 0; phid->magneticFieldMax = 0; phid->magneticFieldMin = 0; phid->calDataValid = PFALSE; } else return EPHIDGET_BADVERSION; break; case PHIDID_SPATIAL_ACCEL_GYRO_COMPASS: if (phid->phid.deviceVersion < 300) { phid->accelerationMax = 5.1; phid->accelerationMin = -5.1; phid->interruptRate = 8; phid->dataRateMin = SPATIAL_MIN_DATA_RATE; phid->dataRate = phid->interruptRate; phid->dataRateMax = 4; //actual data rate phid->angularRateMax = 400.1; phid->angularRateMin = -400.1; phid->magneticFieldMax = 4.1; phid->magneticFieldMin = -4.1; phid->userMagField = 1.0; phid->calDataValid = PFALSE; } // 1042 (Digital 3/3/3) else if (phid->phid.deviceVersion >= 300 && phid->phid.deviceVersion < 400) { phid->accelerationMax = 5.1; phid->accelerationMin = -5.1; phid->interruptRate = 8; phid->dataRateMin = SPATIAL_MIN_DATA_RATE; phid->dataRate = phid->interruptRate; phid->dataRateMax = 4; //actual data rate phid->angularRateMax = 400.1; phid->angularRateMin = -400.1; phid->magneticFieldMax = 4.1; phid->magneticFieldMin = -4.1; phid->userMagField = 1.0; phid->calDataValid = PFALSE; } // 1044 (1056 Replacement) else if (phid->phid.deviceVersion >= 400 && phid->phid.deviceVersion < 500) { phid->accelerationMax = 5.1; phid->accelerationMin = -5.1; phid->interruptRate = 4; phid->dataRateMin = SPATIAL_MIN_DATA_RATE; phid->dataRate = 8;//phid->interruptRate; phid->dataRateMax = 4; //actual data rate phid->angularRateMax = 400.1; phid->angularRateMin = -400.1; phid->magneticFieldMax = 10.1; phid->magneticFieldMin = -10.1; phid->userMagField = 1.0; phid->calDataValid = PFALSE; } else return EPHIDGET_BADVERSION; break; default: return EPHIDGET_UNEXPECTED; } //initialize triggers, set data arrays to unknown for (i = 0; iphid.attr.spatial.numAccelAxes; i++) { phid->accelAxis[i] = PUNK_DBL; phid->accelGain1[i] = PUNK_DBL; phid->accelGain2[i] = PUNK_DBL; phid->accelOffset[i] = PUNK_INT; } for (i = 0; iphid.attr.spatial.numGyroAxes; i++) { phid->gyroAxis[i] = PUNK_DBL; phid->gryoCorrection[i] = 0; phid->gyroGain1[i] = PUNK_DBL; phid->gyroGain2[i] = PUNK_DBL; phid->gyroOffset[i] = PUNK_INT; } for (i = 0; iphid.attr.spatial.numCompassAxes; i++) { phid->compassAxis[i] = PUNK_DBL; phid->userCompassGain[i] = 1.0; } phid->bufferReadPtr = 0; phid->bufferWritePtr = 0; phid->timestamp.seconds = 0; phid->timestamp.microseconds = 0; phid->lastEventTime.seconds = 0; phid->lastEventTime.microseconds = 0; phid->latestDataTime.seconds = 0; phid->latestDataTime.microseconds = 0; phid->lastTimeCounterValid = PFALSE; phid->doZeroGyro = PFALSE; //get calibration values switch(phid->phid.deviceIDSpec) { case PHIDID_SPATIAL_ACCEL_3AXIS: // 1041, 1043 - no streamed calibration values if (phid->phid.deviceVersion >= 200) break; case PHIDID_SPATIAL_ACCEL_GYRO_COMPASS: // 1042, 1044 - no streamed calibration values if (phid->phid.deviceVersion >= 300) break; else { unsigned char buffer[8] = { 0 }; int result; int readCount = 125; // up to 1 second of data - should be PLENTY //ask for calibration values buffer[0] = SPATIAL_READCALIB; if ((result = CUSBSendPacket((CPhidgetHandle)phid, buffer)) != EPHIDGET_OK) return result; while(phid->calDataValid == PFALSE && readCount--) { //note that Windows queues up to 32 packets, so we need to read at least this many to get the calibration packet CPhidget_read((CPhidgetHandle)phid); } if(!phid->calDataValid) return EPHIDGET_UNEXPECTED; } break; default: break; } //issue one read //this should fill in the data because the dataRate is the interrupt rate CPhidget_read((CPhidgetHandle)phid); return EPHIDGET_OK; } //dataInput - parses device packets CPHIDGETDATA(Spatial) int i = 0, j = 0, count = 0, dataRate = phid->dataRate, cal; unsigned char doneGyroZero = PFALSE; double accelAvg[SPATIAL_MAX_ACCELAXES], angularRateAvg[SPATIAL_MAX_ACCELAXES], magneticFieldAvg[SPATIAL_MAX_ACCELAXES], magneticFieldCorr[SPATIAL_MAX_ACCELAXES]; CPhidgetSpatial_SpatialEventDataHandle *eventData; ZEROMEM(accelAvg, sizeof(accelAvg)); ZEROMEM(angularRateAvg, sizeof(angularRateAvg)); ZEROMEM(magneticFieldAvg, sizeof(magneticFieldAvg)); if (length<0) return EPHIDGET_INVALIDARG; TESTPTR(phid); TESTPTR(buffer); //Parse device packets - store data locally switch(phidG->deviceIDSpec) { case PHIDID_SPATIAL_ACCEL_3AXIS: if (phid->phid.deviceVersion < 200) { int data; double accelUncalib[3] = {0,0,0}; int time; //top 2 bits in buffer[0] are packet type switch(buffer[0] & 0xc0) { case SPATIAL_PACKET_DATA: if(phid->calDataValid) { count = buffer[0] / 3; if(count == 0) goto done; //this timestamp is for the latest data time = ((unsigned short)buffer[1]<<8) + (unsigned short)buffer[2]; if(phid->lastTimeCounterValid) { //0-255 ms int timechange = (unsigned short)((unsigned short)time - (unsigned short)phid->lastTimeCounter); timechange *= 1000; //us phid->timestamp.seconds = phid->timestamp.seconds + (phid->timestamp.microseconds + timechange) / 1000000; phid->timestamp.microseconds = (phid->timestamp.microseconds + timechange) % 1000000; } else { phid->lastTimeCounterValid = PTRUE; } phid->lastTimeCounter = time; //add data to data buffer for(i=0;iaccelOffset[j]; } //X if(accelUncalib[0] > 0) phid->dataBuffer[phid->bufferWritePtr].acceleration[0] = accelUncalib[0] * phid->accelGain1[0] + accelUncalib[1] * phid->accelFactor1[0] + accelUncalib[2] * phid->accelFactor2[0]; else phid->dataBuffer[phid->bufferWritePtr].acceleration[0] = accelUncalib[0] * phid->accelGain2[0] + accelUncalib[1] * phid->accelFactor1[0] + accelUncalib[2] * phid->accelFactor2[0]; //Y if(accelUncalib[1] > 0) phid->dataBuffer[phid->bufferWritePtr].acceleration[1] = accelUncalib[1] * phid->accelGain1[1] + accelUncalib[0] * phid->accelFactor1[1] + accelUncalib[2] * phid->accelFactor2[1]; else phid->dataBuffer[phid->bufferWritePtr].acceleration[1] = accelUncalib[1] * phid->accelGain2[1] + accelUncalib[0] * phid->accelFactor1[1] + accelUncalib[2] * phid->accelFactor2[1]; //Z if(accelUncalib[2] > 0) phid->dataBuffer[phid->bufferWritePtr].acceleration[2] = accelUncalib[2] * phid->accelGain1[2] + accelUncalib[0] * phid->accelFactor1[2] + accelUncalib[1] * phid->accelFactor2[2]; else phid->dataBuffer[phid->bufferWritePtr].acceleration[2] = accelUncalib[2] * phid->accelGain2[2] + accelUncalib[0] * phid->accelFactor1[2] + accelUncalib[1] * phid->accelFactor2[2]; phid->latestDataTime.seconds = phid->timestamp.seconds + (phid->timestamp.microseconds + (i + 1) * phid->dataRateMax * 1000) / 1000000; phid->latestDataTime.microseconds = (phid->timestamp.microseconds + (i + 1) * phid->dataRateMax * 1000) % 1000000; phid->dataBuffer[phid->bufferWritePtr].timestamp = phid->latestDataTime; phid->bufferWritePtr++; if(phid->bufferWritePtr >= SPATIAL_DATA_BUFFER_SIZE) phid->bufferWritePtr = 0; } } break; case SPATIAL_PACKET_CALIB: for (i = 0; iphid.attr.spatial.numAccelAxes; i++) { cal = ((unsigned short)buffer[i*7 + 1]<<4) + ((unsigned short)buffer[i*7 + 2]>>4); phid->accelGain1[i] = cal / (4096/0.4) + 0.8; cal = (((unsigned short)buffer[i*7 + 2]<<8) & 0x0F00) | ((unsigned short)buffer[i*7 + 3]); phid->accelGain2[i] = cal / (4096/0.4) + 0.8; cal = (unsigned short)((unsigned short)buffer[i*7 + 4]<<8) + (unsigned short)buffer[i*7 + 5]; phid->accelOffset[i] = cal / (65535 / 1.0) - 0.5; cal = (unsigned char)buffer[i*7 + 6]; phid->accelFactor1[i] = cal / (256 / 0.2) - 0.1; cal = (unsigned char)buffer[i*7 + 7]; phid->accelFactor2[i] = cal / (256 / 0.2) - 0.1; //LOG(PHIDGET_LOG_INFO, "Accel(%d) Calib: %1.4lf, %1.4lf, %1.4lf, %1.4lf, %1.4lf", i, // phid->accelGain1[i], phid->accelGain2[i], phid->accelOffset[i], phid->accelFactor1[i], phid->accelFactor2[i]); } phid->calDataValid = PTRUE; break; } } else return EPHIDGET_UNEXPECTED; break; case PHIDID_SPATIAL_ACCEL_GYRO_COMPASS: if (phidG->deviceVersion < 300) { //top 2 bits in buffer[0] are packet type switch(buffer[0]) { case SPATIAL_PACKET_DATA: if(phid->calDataValid) { int data; double accelUncalib[3] = {0,0,0}; double gyroUncalib[3] = {0,0,0}; int time; count = (buffer[1] & 0x1f) / 9; if(count == 0) goto done; //this timestamp is for the latest data time = ((unsigned short)buffer[2]<<8) + (unsigned short)buffer[3]; if(phid->lastTimeCounterValid) { //0-255 ms int timechange = (unsigned short)((unsigned short)time - (unsigned short)phid->lastTimeCounter); timechange *= 1000; //us phid->timestamp.seconds = phid->timestamp.seconds + (phid->timestamp.microseconds + timechange) / 1000000; phid->timestamp.microseconds = (phid->timestamp.microseconds + timechange) % 1000000; } else { phid->lastTimeCounterValid = PTRUE; } phid->lastTimeCounter = time; //add data to data buffer for(i=0;iaccelOffset[j]; } //X if(accelUncalib[0] > 0) phid->dataBuffer[phid->bufferWritePtr].acceleration[0] = accelUncalib[0] * phid->accelGain1[0] + accelUncalib[1] * phid->accelFactor1[0] + accelUncalib[2] * phid->accelFactor2[0]; else phid->dataBuffer[phid->bufferWritePtr].acceleration[0] = accelUncalib[0] * phid->accelGain2[0] + accelUncalib[1] * phid->accelFactor1[0] + accelUncalib[2] * phid->accelFactor2[0]; //Y if(accelUncalib[1] > 0) phid->dataBuffer[phid->bufferWritePtr].acceleration[1] = accelUncalib[1] * phid->accelGain1[1] + accelUncalib[0] * phid->accelFactor1[1] + accelUncalib[2] * phid->accelFactor2[1]; else phid->dataBuffer[phid->bufferWritePtr].acceleration[1] = accelUncalib[1] * phid->accelGain2[1] + accelUncalib[0] * phid->accelFactor1[1] + accelUncalib[2] * phid->accelFactor2[1]; //Z if(accelUncalib[2] > 0) phid->dataBuffer[phid->bufferWritePtr].acceleration[2] = accelUncalib[2] * phid->accelGain1[2] + accelUncalib[0] * phid->accelFactor1[2] + accelUncalib[1] * phid->accelFactor2[2]; else phid->dataBuffer[phid->bufferWritePtr].acceleration[2] = accelUncalib[2] * phid->accelGain2[2] + accelUncalib[0] * phid->accelFactor1[2] + accelUncalib[1] * phid->accelFactor2[2]; //ADC ref is 0-3.3V - 50.355uV/bit, gyro zero rate is 1.23V, 2.5mV/deg/s - these voltages are fixed, non-ratiometric to Vref // 1 / 0.000050355 = 19859 (1V) // 1.23 * 19859 = 24427 // 0.0025 * 19859 = 49.6477bits/deg/s for(j=0;j<3;j++) { data = ((unsigned short)buffer[10 + j * 2 + i * 18]<<8) + (unsigned short)buffer[11 + j * 2 + i * 18]; if(j==1) gyroUncalib[j] = ((double)(data-24427) + phid->gyroOffset[j]) / 49.6477; else gyroUncalib[j] = ((double)-(data-24427) + phid->gyroOffset[j]) / 49.6477; //reverse X/Z-axis } //0 - we multiply these by their gains so revered axes will still appear positive and get the correct gain if((gyroUncalib[0] * phid->gyroGain1[0]) > 0) phid->dataBuffer[phid->bufferWritePtr].angularRate[0] = gyroUncalib[0] * phid->gyroGain1[0] - gyroUncalib[1] * phid->gyroFactor1[0] - gyroUncalib[2] * phid->gyroFactor2[0]; else phid->dataBuffer[phid->bufferWritePtr].angularRate[0] = gyroUncalib[0] * phid->gyroGain2[0] - gyroUncalib[1] * phid->gyroFactor1[0] - gyroUncalib[2] * phid->gyroFactor2[0]; //1 if((gyroUncalib[1] * phid->gyroGain1[1]) > 0) phid->dataBuffer[phid->bufferWritePtr].angularRate[1] = gyroUncalib[1] * phid->gyroGain1[1] - gyroUncalib[0] * phid->gyroFactor1[1] - gyroUncalib[2] * phid->gyroFactor2[1]; else phid->dataBuffer[phid->bufferWritePtr].angularRate[1] = gyroUncalib[1] * phid->gyroGain2[1] - gyroUncalib[0] * phid->gyroFactor1[1] - gyroUncalib[2] * phid->gyroFactor2[1]; //2 if((gyroUncalib[2] * phid->gyroGain1[2]) > 0) phid->dataBuffer[phid->bufferWritePtr].angularRate[2] = gyroUncalib[2] * phid->gyroGain1[2] - gyroUncalib[0] * phid->gyroFactor1[2] - gyroUncalib[1] * phid->gyroFactor2[2]; else phid->dataBuffer[phid->bufferWritePtr].angularRate[2] = gyroUncalib[2] * phid->gyroGain2[2] - gyroUncalib[0] * phid->gyroFactor1[2] - gyroUncalib[1] * phid->gyroFactor2[2]; //checks if compass data is valid //Note: we miss ~7 samples (28ms) every second while the compass is callibrating if(buffer[1] & (0x80 >> i)) { //ADC 50.355uV/bit (0-3.3V) //ideal compass midpoint is 0x7FFF (32767) (1.65V) //valid range for zero field offset is: 0.825V - 2.475V (16384-49151) (+-16384) // Note that this may be less (~3x) because the Gain is less, but I'm not sure. (+-5460) //valid output voltage range is defined as 0.165V - 3.135V (3277-62258), // so we can't really trust values outside of this, though we do seem to get valid data... //ideal sensitivity is 250mV/gauss (ext. resistor), valid range is 195 - 305 // 1 / 0.000050355 = 19859 (1Volt) // 0.250 * 19859 = 4964.75 bits/gauss (1.0 gain) (ideal) - valid range is (3861-6068) (+-1103) //We have defined the compass gain multiplier to be based on 6500bits/gauss to keep the math resonable, // so we must use that value here. Implications? //The largest range we can guarantee is: // 16384-3277/6068 = +-2.16 gauss or, more likely: +-3.96 gauss // Ideal is: 32767-3277/4964.75 = +-5.94 gauss // we can tell from the incoming data whether it's valid or not, // we'll probably have more range in one dirrection then the other because of offset. for(j=0;jphid.attr.spatial.numCompassAxes; j++) { data = ((unsigned short)buffer[16 + i * 18 + j * 2]<<8) + (unsigned short)buffer[17 + i * 18 + j * 2]; //if we are not within (3277-62258), data is not valid if(data < 3277) { phid->dataBuffer[phid->bufferWritePtr].magneticField[j] = phid->magneticFieldMin; break; } if(data > 62258) { phid->dataBuffer[phid->bufferWritePtr].magneticField[j] = phid->magneticFieldMax; break; } //if gain or offset don't make sense, throw out data //if(phid->compassGain[j] > 6068 || phid->compassGain[j] < 3861 || if(phid->compassGain[j] > 6068 || phid->compassGain[j] < 2500 || //lower gains seem to be common phid->compassOffset[j] > 5460 || phid->compassOffset[j] < -5460) { if(data > 32767) phid->dataBuffer[phid->bufferWritePtr].magneticField[j] = phid->magneticFieldMax; else phid->dataBuffer[phid->bufferWritePtr].magneticField[j] = phid->magneticFieldMin; break; } //Convert ADC to Gauss phid->dataBuffer[phid->bufferWritePtr].magneticField[j] = -((double)data - 0x7fff - phid->compassOffset[j]) / phid->compassGain[j]; //constrain to max/min //ie if field is 4.02 and max is 4.1, make it 4.1, since real max is 4.0 if(phid->dataBuffer[phid->bufferWritePtr].magneticField[j] > (phid->magneticFieldMax - 0.1)) phid->dataBuffer[phid->bufferWritePtr].magneticField[j] = phid->magneticFieldMax; if(phid->dataBuffer[phid->bufferWritePtr].magneticField[j] < (phid->magneticFieldMin + 0.1)) phid->dataBuffer[phid->bufferWritePtr].magneticField[j] = phid->magneticFieldMin; } } else { phid->dataBuffer[phid->bufferWritePtr].magneticField[0] = PUNK_DBL; phid->dataBuffer[phid->bufferWritePtr].magneticField[1] = PUNK_DBL; phid->dataBuffer[phid->bufferWritePtr].magneticField[2] = PUNK_DBL; } phid->latestDataTime.seconds = phid->timestamp.seconds + (phid->timestamp.microseconds + (i + 1) * phid->dataRateMax * 1000) / 1000000; phid->latestDataTime.microseconds = (phid->timestamp.microseconds + (i + 1) * phid->dataRateMax * 1000) % 1000000; phid->dataBuffer[phid->bufferWritePtr].timestamp = phid->latestDataTime; phid->bufferWritePtr++; if(phid->bufferWritePtr >= SPATIAL_DATA_BUFFER_SIZE) phid->bufferWritePtr = 0; } } break; case SPATIAL_PACKET_CALIB: for (i = 0; iphid.attr.spatial.numAccelAxes; i++) { cal = ((unsigned short)buffer[i*7 + 1]<<4) + ((unsigned short)buffer[i*7 + 2]>>4); phid->accelGain1[i] = cal / (4096/0.4) + 0.8; cal = (((unsigned short)buffer[i*7 + 2]<<8) & 0x0F00) | ((unsigned short)buffer[i*7 + 3]); phid->accelGain2[i] = cal / (4096/0.4) + 0.8; cal = (unsigned short)((unsigned short)buffer[i*7 + 4]<<8) + (unsigned short)buffer[i*7 + 5]; phid->accelOffset[i] = cal / (65535 / 1.0) - 0.5; cal = (unsigned char)buffer[i*7 + 6]; phid->accelFactor1[i] = cal / (256 / 0.2) - 0.1; cal = (unsigned char)buffer[i*7 + 7]; phid->accelFactor2[i] = cal / (256 / 0.2) - 0.1; //LOG(PHIDGET_LOG_INFO, "Accel(%d) Calib: %1.4lf, %1.4lf, %1.4lf, %1.4lf, %1.4lf", i, // phid->accelGain1[i], phid->accelGain2[i], phid->accelOffset[i], phid->accelFactor1[i], phid->accelFactor2[i]); } for (j=0; jphid.attr.spatial.numGyroAxes; i++,j++) { if (phidG->deviceVersion < 200) { cal = ((unsigned short)buffer[i*7 + 1]<<4) + ((unsigned short)buffer[i*7 + 2]>>4); phid->gyroGain1[j] = cal / (4096/0.4) + 0.8; cal = (((unsigned short)buffer[i*7 + 2]<<8) & 0x0F00) | ((unsigned short)buffer[i*7 + 3]); phid->gyroGain2[j] = cal / (4096/0.4) + 0.8; } //Allow for negative gains else if (phidG->deviceVersion >= 200 && phidG->deviceVersion < 300) { cal = ((signed short)((signed char)buffer[i*7 + 1])<<4) + ((unsigned short)buffer[i*7 + 2]>>4); phid->gyroGain1[j] = cal / (4096/0.4) + (cal > 0 ? 0.9 : -0.9); cal = ((((unsigned short)buffer[i*7 + 2]<<8) & 0x0F00) | ((unsigned short)buffer[i*7 + 3]) ) << 4; cal = (signed short)cal >> 4; phid->gyroGain2[j] = cal / (4096/0.4) + (cal > 0 ? 0.9 : -0.9); } cal = (signed short)((unsigned short)buffer[i*7 + 4]<<8) + (unsigned short)buffer[i*7 + 5]; phid->gyroOffset[j] = cal; cal = (unsigned char)buffer[i*7 + 6]; phid->gyroFactor1[j] = cal / (256 / 0.1) - 0.05; cal = (unsigned char)buffer[i*7 + 7]; phid->gyroFactor2[j] = cal / (256 / 0.1) - 0.05; //Zero out calibrations #if 0 phid->gyroGain1[j] = 1; phid->gyroGain2[j] = 1; phid->gyroOffset[j] = 0; phid->gyroFactor1[j] = 0; phid->gyroFactor2[j] = 0; #endif LOG(PHIDGET_LOG_VERBOSE, "Gyro(%d) Calib: %1.4lf, %1.4lf, %1.4lf, %1.4lf, %1.4lf", j, phid->gyroGain1[j], phid->gyroGain2[j], phid->gyroOffset[j], phid->gyroFactor1[j], phid->gyroFactor2[j]); } for(j=0;jphid.attr.spatial.numCompassAxes; j++) { phid->compassOffset[j] = (signed short)((unsigned short)buffer[j*4 + 49]<<8) + (unsigned short)buffer[j*4 + 50]; phid->compassGain[j] = ((unsigned short)buffer[j*4 + 51]<<8) + (unsigned short)buffer[j*4 + 52]; //phid->compassGain[j] = 4964; } //LOG(PHIDGET_LOG_INFO, "Compass Gain: %d, %d, %d", phid->compassGain[0], phid->compassGain[1], phid->compassGain[2]); //LOG(PHIDGET_LOG_INFO, "Compass Offset: %d, %d, %d", phid->compassOffset[0], phid->compassOffset[1], phid->compassOffset[2]); phid->calDataValid = PTRUE; break; } } // 1044 (1056 Replacement) and 1042 (low-cost 3/3/3) else if (phidG->deviceVersion >= 300 && phidG->deviceVersion < 500) { //top 2 bits in buffer[0] are packet type switch(buffer[0]) { case SPATIAL_PACKET_DATA: { int data; int time; count = buffer[1] & 0x03; if(count == 0) goto done; //this timestamp is for the latest data time = ((unsigned short)buffer[2]<<8) + (unsigned short)buffer[3]; //LOG(PHIDGET_LOG_DEBUG, "TimeStamp: %6d",time); if(phid->lastTimeCounterValid) { //1-255 ms int timechange = (unsigned short)((unsigned short)time - (unsigned short)phid->lastTimeCounter); timechange *= 1000; //us if(timechange > 500000) LOG(PHIDGET_LOG_DEBUG, "Timechange: %d",timechange); phid->timestamp.seconds = phid->timestamp.seconds + (phid->timestamp.microseconds + timechange) / 1000000; phid->timestamp.microseconds = (phid->timestamp.microseconds + timechange) % 1000000; } else { phid->lastTimeCounterValid = PTRUE; } phid->lastTimeCounter = time; //add data to data buffer for(i=0;i> i)) { LOG(PHIDGET_LOG_DEBUG, "digital accel"); //+-8g resolution is 1g/1024/bit for(j=0;j<3;j++) { short accelData = (signed short)((unsigned short)buffer[4 + j * 2 + i * 18]<<8) + (unsigned short)buffer[5 + j * 2 + i * 18]; if(j==0) phid->dataBuffer[phid->bufferWritePtr].acceleration[j] = -((double)accelData / 1024.0); else phid->dataBuffer[phid->bufferWritePtr].acceleration[j] = (double)accelData / 1024.0; } } //analog accel else { //KXR94-2050 - 660 mV/g (VCC/5) - 0xffff/5 = 0x3333 (13107.0) for(j=0;j<3;j++) { data = ((unsigned short)buffer[4 + j * 2 + i * 18]<<8) + (unsigned short)buffer[5 + j * 2 + i * 18]; if(j==2) phid->dataBuffer[phid->bufferWritePtr].acceleration[j] = ((double)data - 0x7fff) / 13107; else phid->dataBuffer[phid->bufferWritePtr].acceleration[j] = -((double)data - 0x7fff) / 13107; } phid->dataBuffer[phid->bufferWritePtr].acceleration[1] = -phid->dataBuffer[phid->bufferWritePtr].acceleration[1]; //reverse Y-axis } //digital gyro if(buffer[1] & (0x20 >> i)) { LOG(PHIDGET_LOG_DEBUG, "digital gyro"); //2000dps // 0.07 dps/digit for(j=0;j<3;j++) { short gyroData = (signed short)((unsigned short)buffer[10 + j * 2 + i * 18]<<8) + (unsigned short)buffer[11 + j * 2 + i * 18]; phid->dataBuffer[phid->bufferWritePtr].angularRate[j] = (double)gyroData * 0.07; } } //analog gyro else { //ADC ref is 0-3.3V - 50.355uV/bit, gyro zero rate is 1.5V, X/Y: 2.5mV/deg/s Z: 3.572mV/deg/s // these voltages are fixed, non-ratiometric to Vref // 1 / 0.000050355 = 19859 (1V) // 1.5 * 19859 = 29789 // 0.0025 * 19859 = 49.6477bits/deg/s // 0.003572 * 19859 = 70.936348bits/deg/s for(j=0;j<3;j++) { data = ((unsigned short)buffer[10 + j * 2 + i * 18]<<8) + (unsigned short)buffer[11 + j * 2 + i * 18]; if(j==0) phid->dataBuffer[phid->bufferWritePtr].angularRate[j] = ((double)-(data-29789)) / 49.6477; //reverse X-axis else if(j==2) phid->dataBuffer[phid->bufferWritePtr].angularRate[j] = ((double)-(data-29789)) / 70.936348; //reverse Z-axis else phid->dataBuffer[phid->bufferWritePtr].angularRate[j] = ((double)(data-29789)) / 49.6477; } } //LOG(PHIDGET_LOG_DEBUG, "ADC Values: %1.3lf, %1.3lf, %1.3lf, %1.3lf, %1.3lf, %1.3lf", dataTrack[0], dataTrack[1], dataTrack[2], dataTrack[3], dataTrack[4], dataTrack[5]); //checks if compass data is valid if(buffer[1] & (0x80 >> i)) { for(j=0;jphid.attr.spatial.numCompassAxes; j++) { short magData = (signed short)((unsigned short)buffer[16 + i * 18 + j * 2]<<8) + (unsigned short)buffer[17 + i * 18 + j * 2]; //each bit is 0.1 uT //Convert to Gauss (divide by 1000) if(j==1) phid->dataBuffer[phid->bufferWritePtr].magneticField[j] = -(magData / 1000.0); else phid->dataBuffer[phid->bufferWritePtr].magneticField[j] = magData / 1000.0; //constrain to max/min //ie if field is 4.02 and max is 4.1, make it 4.1, since real max is 4.0 if(phid->dataBuffer[phid->bufferWritePtr].magneticField[j] > (phid->magneticFieldMax - 0.1)) phid->dataBuffer[phid->bufferWritePtr].magneticField[j] = phid->magneticFieldMax; if(phid->dataBuffer[phid->bufferWritePtr].magneticField[j] < (phid->magneticFieldMin + 0.1)) phid->dataBuffer[phid->bufferWritePtr].magneticField[j] = phid->magneticFieldMin; } } else { phid->dataBuffer[phid->bufferWritePtr].magneticField[0] = PUNK_DBL; phid->dataBuffer[phid->bufferWritePtr].magneticField[1] = PUNK_DBL; phid->dataBuffer[phid->bufferWritePtr].magneticField[2] = PUNK_DBL; } phid->latestDataTime.seconds = phid->timestamp.seconds + (phid->timestamp.microseconds + (i + 1) * phid->dataRateMax * 1000) / 1000000; phid->latestDataTime.microseconds = (phid->timestamp.microseconds + (i + 1) * phid->dataRateMax * 1000) % 1000000; //LOG(PHIDGET_LOG_DEBUG, "Time: %d:%d",phid->latestDataTime.seconds,phid->latestDataTime.microseconds); phid->dataBuffer[phid->bufferWritePtr].timestamp = phid->latestDataTime; phid->bufferWritePtr++; if(phid->bufferWritePtr >= SPATIAL_DATA_BUFFER_SIZE) phid->bufferWritePtr = 0; } break; } } } else return EPHIDGET_UNEXPECTED; break; default: return EPHIDGET_UNEXPECTED; } if(phid->doZeroGyro) { //done if(timestampdiff(phid->latestDataTime, phid->dataBuffer[phid->gyroZeroReadPtr].timestamp) >= SPATIAL_ZERO_GYRO_TIME) { double gryoCorrectionTemp[SPATIAL_MAX_GYROAXES] = {0,0,0}; int gryoCorrectionCount = 0; while(phid->gyroZeroReadPtr != phid->bufferWritePtr) { for (i = 0; iphid.attr.spatial.numGyroAxes; i++) { gryoCorrectionTemp[i] += phid->dataBuffer[phid->gyroZeroReadPtr].angularRate[i]; } phid->gyroZeroReadPtr++; if(phid->gyroZeroReadPtr >= SPATIAL_DATA_BUFFER_SIZE) phid->gyroZeroReadPtr = 0; gryoCorrectionCount++; } for (i = 0; iphid.attr.spatial.numGyroAxes; i++) { phid->gryoCorrection[i] = gryoCorrectionTemp[i] / (double)gryoCorrectionCount; } doneGyroZero = PTRUE; } } //see if it's time for an event if(timestampdiff(phid->latestDataTime, phid->lastEventTime) >= dataRate) { CPhidget_Timestamp tempTime; //int lastPtr; int accelCounter[SPATIAL_MAX_ACCELAXES], angularRateCounter[SPATIAL_MAX_ACCELAXES], magneticFieldCounter[SPATIAL_MAX_ACCELAXES]; int dataPerEvent = 0; int multipleDataPerEvent = PFALSE; if(dataRate < phid->interruptRate) multipleDataPerEvent = PTRUE; //max of 16 data per event eventData = malloc(16 * sizeof(CPhidgetSpatial_SpatialEventDataHandle)); for(j=0;;j++) { //makes sure we read all data if(phid->bufferReadPtr == phid->bufferWritePtr || j>=16) { dataPerEvent = j; break; } eventData[j] = malloc(sizeof(CPhidgetSpatial_SpatialEventData)); ZEROMEM(accelCounter, sizeof(accelCounter)); ZEROMEM(angularRateCounter, sizeof(angularRateCounter)); ZEROMEM(magneticFieldCounter, sizeof(magneticFieldCounter)); tempTime = phid->dataBuffer[phid->bufferReadPtr].timestamp; //average data for each stage while(phid->bufferReadPtr != phid->bufferWritePtr && (!multipleDataPerEvent || timestampdiff(phid->dataBuffer[phid->bufferReadPtr].timestamp, tempTime) < dataRate)) { for (i = 0; iphid.attr.spatial.numAccelAxes; i++) { if(phid->dataBuffer[phid->bufferReadPtr].acceleration[i] != PUNK_DBL) { if(phid->dataBuffer[phid->bufferReadPtr].acceleration[i] > phid->accelerationMax) phid->dataBuffer[phid->bufferReadPtr].acceleration[i] = phid->accelerationMax; if(phid->dataBuffer[phid->bufferReadPtr].acceleration[i] < phid->accelerationMin) phid->dataBuffer[phid->bufferReadPtr].acceleration[i] = phid->accelerationMin; accelAvg[i] += phid->dataBuffer[phid->bufferReadPtr].acceleration[i]; accelCounter[i]++; } } for (i = 0; iphid.attr.spatial.numGyroAxes; i++) { if(phid->dataBuffer[phid->bufferReadPtr].angularRate[i] != PUNK_DBL) { double rate = phid->dataBuffer[phid->bufferReadPtr].angularRate[i] - phid->gryoCorrection[i]; if(rate > phid->angularRateMax) angularRateAvg[i] += phid->angularRateMax; else if(rate < phid->angularRateMin) angularRateAvg[i] += phid->angularRateMin; else angularRateAvg[i] += rate; angularRateCounter[i]++; } } for (i = 0; iphid.attr.spatial.numCompassAxes; i++) { if(phid->dataBuffer[phid->bufferReadPtr].magneticField[i] != PUNK_DBL) { if(phid->dataBuffer[phid->bufferReadPtr].magneticField[i] > phid->magneticFieldMax) phid->dataBuffer[phid->bufferReadPtr].magneticField[i] = phid->magneticFieldMax; if(phid->dataBuffer[phid->bufferReadPtr].magneticField[i] < phid->magneticFieldMin) phid->dataBuffer[phid->bufferReadPtr].magneticField[i] = phid->magneticFieldMin; magneticFieldAvg[i] += phid->dataBuffer[phid->bufferReadPtr].magneticField[i]; magneticFieldCounter[i]++; } } //lastPtr = phid->bufferReadPtr; phid->bufferReadPtr++; if(phid->bufferReadPtr >= SPATIAL_DATA_BUFFER_SIZE) phid->bufferReadPtr = 0; } for (i = 0; iphid.attr.spatial.numAccelAxes; i++) { if(accelCounter[i] > 0) eventData[j]->acceleration[i] = round_double(accelAvg[i] / (double)accelCounter[i], 5); else eventData[j]->acceleration[i] = PUNK_DBL; accelAvg[i] = 0; } for (i = 0; iphid.attr.spatial.numGyroAxes; i++) { if(angularRateCounter[i] > 0) { if(phid->doZeroGyro && !doneGyroZero) eventData[j]->angularRate[i] = 0; else eventData[j]->angularRate[i] = round_double(angularRateAvg[i] / (double)angularRateCounter[i], 5); } else eventData[j]->angularRate[i] = PUNK_DBL; angularRateAvg[i] = 0; } for (i = 0; iphid.attr.spatial.numCompassAxes; i++) { if(magneticFieldCounter[i] > 0) eventData[j]->magneticField[i] = round_double(magneticFieldAvg[i] / (double)magneticFieldCounter[i], 5); else eventData[j]->magneticField[i] = PUNK_DBL; magneticFieldAvg[i] = 0; } eventData[j]->timestamp = tempTime; } //correct magnetic field data in the event structure for( j = 0; j < dataPerEvent; j++) { for (i = 0; iphid.attr.spatial.numCompassAxes; i++) { magneticFieldCorr[i] = eventData[j]->magneticField[i]; } for (i = 0; iphid.attr.spatial.numCompassAxes; i++) { if(eventData[j]->magneticField[i] != PUNK_DBL) { eventData[j]->magneticField[i] = getCorrectedField(phid, magneticFieldCorr, i); } } } //store to local structure ZEROMEM(accelCounter, sizeof(accelCounter)); ZEROMEM(angularRateCounter, sizeof(angularRateCounter)); ZEROMEM(magneticFieldCounter, sizeof(magneticFieldCounter)); for( j = 0; j < dataPerEvent; j++) { for (i = 0; iphid.attr.spatial.numAccelAxes; i++) { if(eventData[j]->acceleration[i] != PUNK_DBL) { accelAvg[i] += eventData[j]->acceleration[i]; accelCounter[i]++; } } for (i = 0; iphid.attr.spatial.numGyroAxes; i++) { if(eventData[j]->angularRate[i] != PUNK_DBL) { angularRateAvg[i] += eventData[j]->angularRate[i]; angularRateCounter[i]++; } } for (i = 0; iphid.attr.spatial.numCompassAxes; i++) { if(eventData[j]->magneticField[i] != PUNK_DBL) { magneticFieldAvg[i] += eventData[j]->magneticField[i]; magneticFieldCounter[i]++; } } } //Set local get data to averages for (i = 0; iphid.attr.spatial.numAccelAxes; i++) { if(accelCounter[i] > 0) phid->accelAxis[i] = round_double(accelAvg[i] / (double)accelCounter[i], 5); else phid->accelAxis[i] = PUNK_DBL; } for (i = 0; iphid.attr.spatial.numGyroAxes; i++) { if(angularRateCounter[i] > 0) { if(phid->doZeroGyro && !doneGyroZero) phid->gyroAxis[i] = 0; else phid->gyroAxis[i] = round_double(angularRateAvg[i] / (double)angularRateCounter[i], 5); } else phid->gyroAxis[i] = PUNK_DBL; } for (i = 0; iphid.attr.spatial.numCompassAxes; i++) { if(magneticFieldCounter[i] > 0) phid->compassAxis[i] = round_double(magneticFieldAvg[i] / (double)magneticFieldCounter[i], 5); else phid->compassAxis[i] = PUNK_DBL; } //send out any events FIRE(SpatialData, eventData, dataPerEvent); phid->lastEventTime = phid->latestDataTime; for(i=0;idoZeroGyro = PFALSE; return EPHIDGET_OK; } //eventsAfterOpen - sends out an event for all valid data, used during attach initialization CPHIDGETINITEVENTS(Spatial) TESTPTR(phid); //don't need to worry, because the interrupts come at a set rate return EPHIDGET_OK; } //getPacket - not used for spatial CGETPACKET(Spatial) return EPHIDGET_UNEXPECTED; } static double getCorrectedField(CPhidgetSpatialHandle phid, double fields[], int axis) { switch(axis) { case 0: return phid->userMagField * (phid->userCompassGain[0] * (fields[0] - phid->userCompassOffset[0]) + phid->userCompassTransform[0] * (fields[1] - phid->userCompassOffset[1]) + phid->userCompassTransform[1] * (fields[2] - phid->userCompassOffset[2])); case 1: return phid->userMagField * (phid->userCompassGain[1] * (fields[1] - phid->userCompassOffset[1]) + phid->userCompassTransform[2] * (fields[0] - phid->userCompassOffset[0]) + phid->userCompassTransform[3] * (fields[2] - phid->userCompassOffset[2])); case 2: return phid->userMagField * (phid->userCompassGain[2] * (fields[2] - phid->userCompassOffset[2]) + phid->userCompassTransform[4] * (fields[0] - phid->userCompassOffset[0]) + phid->userCompassTransform[5] * (fields[1] - phid->userCompassOffset[1])); default: return 0; } } // === Exported Functions === // //create and initialize a device structure CCREATE(Spatial, PHIDCLASS_SPATIAL) //event setup functions CFHANDLE(Spatial, SpatialData, CPhidgetSpatial_SpatialEventDataHandle *, int) CGET(Spatial,AccelerationAxisCount,int) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED MASGN(phid.attr.spatial.numAccelAxes) } CGET(Spatial,GyroAxisCount,int) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED MASGN(phid.attr.spatial.numGyroAxes) } CGET(Spatial,CompassAxisCount,int) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED MASGN(phid.attr.spatial.numCompassAxes) } CGETINDEX(Spatial,Acceleration,double) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED TESTINDEX(phid.attr.spatial.numAccelAxes) TESTMASGN(accelAxis[Index], PUNK_DBL) MASGN(accelAxis[Index]) } CGETINDEX(Spatial,AccelerationMax,double) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED TESTINDEX(phid.attr.spatial.numAccelAxes) TESTMASGN(accelerationMax, PUNK_DBL) MASGN(accelerationMax) } CGETINDEX(Spatial,AccelerationMin,double) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED TESTINDEX(phid.attr.spatial.numAccelAxes) TESTMASGN(accelerationMin, PUNK_DBL) MASGN(accelerationMin) } CGETINDEX(Spatial,AngularRate,double) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED switch(phid->phid.deviceIDSpec) { case PHIDID_SPATIAL_ACCEL_GYRO_COMPASS: TESTINDEX(phid.attr.spatial.numGyroAxes) TESTMASGN(gyroAxis[Index], PUNK_DBL) MASGN(gyroAxis[Index]) case PHIDID_SPATIAL_ACCEL_3AXIS: default: return EPHIDGET_UNSUPPORTED; } } CGETINDEX(Spatial,AngularRateMax,double) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED switch(phid->phid.deviceIDSpec) { case PHIDID_SPATIAL_ACCEL_GYRO_COMPASS: TESTINDEX(phid.attr.spatial.numGyroAxes) TESTMASGN(angularRateMax, PUNK_DBL) MASGN(angularRateMax) case PHIDID_SPATIAL_ACCEL_3AXIS: default: return EPHIDGET_UNSUPPORTED; } } CGETINDEX(Spatial,AngularRateMin,double) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED switch(phid->phid.deviceIDSpec) { case PHIDID_SPATIAL_ACCEL_GYRO_COMPASS: TESTINDEX(phid.attr.spatial.numGyroAxes) TESTMASGN(angularRateMin, PUNK_DBL) MASGN(angularRateMin) case PHIDID_SPATIAL_ACCEL_3AXIS: default: return EPHIDGET_UNSUPPORTED; } } CGETINDEX(Spatial,MagneticField,double) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED switch(phid->phid.deviceIDSpec) { case PHIDID_SPATIAL_ACCEL_GYRO_COMPASS: TESTINDEX(phid.attr.spatial.numCompassAxes) TESTMASGN(compassAxis[Index], PUNK_DBL) MASGN(compassAxis[Index]) case PHIDID_SPATIAL_ACCEL_3AXIS: default: return EPHIDGET_UNSUPPORTED; } } CGETINDEX(Spatial,MagneticFieldMax,double) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED switch(phid->phid.deviceIDSpec) { case PHIDID_SPATIAL_ACCEL_GYRO_COMPASS: TESTINDEX(phid.attr.spatial.numCompassAxes) TESTMASGN(magneticFieldMax, PUNK_DBL) MASGN(magneticFieldMax) case PHIDID_SPATIAL_ACCEL_3AXIS: default: return EPHIDGET_UNSUPPORTED; } } CGETINDEX(Spatial,MagneticFieldMin,double) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED switch(phid->phid.deviceIDSpec) { case PHIDID_SPATIAL_ACCEL_GYRO_COMPASS: TESTINDEX(phid.attr.spatial.numCompassAxes) TESTMASGN(magneticFieldMin, PUNK_DBL) MASGN(magneticFieldMin) case PHIDID_SPATIAL_ACCEL_3AXIS: default: return EPHIDGET_UNSUPPORTED; } } CSET(Spatial,DataRate,int) TESTPTR(phid) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED TESTRANGE(phid->dataRateMax, phid->dataRateMin) //make sure it's a power of 2, or 1 if(newVal < phid->interruptRate) { int temp = phid->dataRateMax; unsigned char good = FALSE; while(temp <= newVal) { if(temp == newVal) { good = TRUE; break; } temp *= 2; } if(!good) return EPHIDGET_INVALIDARG; } //make sure it's divisible by interruptRate else { if(newVal%phid->interruptRate) return EPHIDGET_INVALIDARG; } if(CPhidget_statusFlagIsSet(phid->phid.status, PHIDGET_REMOTE_FLAG)) ADDNETWORKKEY(DataRate, "%d", dataRate); else phid->dataRate = newVal; return EPHIDGET_OK; } CGET(Spatial,DataRate,int) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED TESTMASGN(dataRate, PUNK_INT) MASGN(dataRate) } CGET(Spatial,DataRateMax,int) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED TESTMASGN(dataRateMax, PUNK_INT) MASGN(dataRateMax) } CGET(Spatial,DataRateMin,int) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED TESTMASGN(dataRateMin, PUNK_INT) MASGN(dataRateMin) } PHIDGET21_API int CCONV CPhidgetSpatial_zeroGyro(CPhidgetSpatialHandle phid) { TESTPTR(phid) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED if(phid->phid.attr.spatial.numGyroAxes==0) return EPHIDGET_UNSUPPORTED; if(CPhidget_statusFlagIsSet(phid->phid.status, PHIDGET_REMOTE_FLAG)) { int newVal = phid->flip^1; ADDNETWORKKEY(ZeroGyro, "%d", flip); } else { if(!phid->doZeroGyro) { phid->gyroZeroReadPtr = phid->bufferReadPtr; phid->doZeroGyro = PTRUE; } } return EPHIDGET_OK; } PHIDGET21_API int CCONV CPhidgetSpatial_resetCompassCorrectionParameters( CPhidgetSpatialHandle phid) { TESTPTR(phid) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED switch(phid->phid.deviceIDSpec) { case PHIDID_SPATIAL_ACCEL_GYRO_COMPASS: if(CPhidget_statusFlagIsSet(phid->phid.status, PHIDGET_REMOTE_FLAG)) { char newVal[1024]; sprintf(newVal, "1,0,0,0,1,1,1,0,0,0,0,0,0"); ADDNETWORKKEY(CompassCorrectionParams, "%s", compassCorrectionParamsString); } else { phid->userMagField = 1; phid->userCompassOffset[0] = 0; phid->userCompassOffset[1] = 0; phid->userCompassOffset[2] = 0; phid->userCompassGain[0] = 1; phid->userCompassGain[1] = 1; phid->userCompassGain[2] = 1; phid->userCompassTransform[0] = 0; phid->userCompassTransform[1] = 0; phid->userCompassTransform[2] = 0; phid->userCompassTransform[3] = 0; phid->userCompassTransform[4] = 0; phid->userCompassTransform[5] = 0; } return EPHIDGET_OK; case PHIDID_SPATIAL_ACCEL_3AXIS: default: return EPHIDGET_UNSUPPORTED; } } PHIDGET21_API int CCONV CPhidgetSpatial_setCompassCorrectionParameters( CPhidgetSpatialHandle phid, double magField, double offset0, double offset1, double offset2, double gain0, double gain1, double gain2, double T0, double T1, double T2, double T3, double T4, double T5) { TESTPTR(phid) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED switch(phid->phid.deviceIDSpec) { case PHIDID_SPATIAL_ACCEL_GYRO_COMPASS: //Magnetic Field 0.1-1000 if(magField < 0.1 || magField > 1000) return EPHIDGET_INVALIDARG; //Offsets need to be 0+-5.0 if(offset0 < -5 || offset0 > 5) return EPHIDGET_INVALIDARG; if(offset1 < -5 || offset1 > 5) return EPHIDGET_INVALIDARG; if(offset2 < -5 || offset2 > 5) return EPHIDGET_INVALIDARG; //Gains need to be 0-15.0 if(gain0 < 0 || gain0 > 15) return EPHIDGET_INVALIDARG; if(gain1 < 0 || gain1 > 15) return EPHIDGET_INVALIDARG; if(gain2 < 0 || gain2 > 15) return EPHIDGET_INVALIDARG; //T params 0+-5.0 if(T0 < -5 || T0 > 5) return EPHIDGET_INVALIDARG; if(T1 < -5 || T1 > 5) return EPHIDGET_INVALIDARG; if(T2 < -5 || T2 > 5) return EPHIDGET_INVALIDARG; if(T3 < -5 || T3 > 5) return EPHIDGET_INVALIDARG; if(T4 < -5 || T4 > 5) return EPHIDGET_INVALIDARG; if(T5 < -5 || T5 > 5) return EPHIDGET_INVALIDARG; if(CPhidget_statusFlagIsSet(phid->phid.status, PHIDGET_REMOTE_FLAG)) { char newVal[1024]; sprintf(newVal, "%lE,%lE,%lE,%lE,%lE,%lE,%lE,%lE,%lE,%lE,%lE,%lE,%lE", magField, offset0, offset1, offset2, gain0, gain1, gain2, T0, T1, T2, T3, T4, T5); ADDNETWORKKEY(CompassCorrectionParams, "%s", compassCorrectionParamsString); } else { phid->userMagField = magField; phid->userCompassOffset[0] = offset0; phid->userCompassOffset[1] = offset1; phid->userCompassOffset[2] = offset2; phid->userCompassGain[0] = gain0; phid->userCompassGain[1] = gain1; phid->userCompassGain[2] = gain2; phid->userCompassTransform[0] = T0; phid->userCompassTransform[1] = T1; phid->userCompassTransform[2] = T2; phid->userCompassTransform[3] = T3; phid->userCompassTransform[4] = T4; phid->userCompassTransform[5] = T5; } return EPHIDGET_OK; case PHIDID_SPATIAL_ACCEL_3AXIS: default: return EPHIDGET_UNSUPPORTED; } } //Maybe add these later /* CGET(Spatial,GyroHeading,double) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED TESTMASGN(gyroHeading, PUNK_DBL) MASGN(gyroHeading) } CGET(Spatial,CompassHeading,double) TESTPTRS(phid,pVal) TESTDEVICETYPE(PHIDCLASS_SPATIAL) TESTATTACHED TESTMASGN(compassHeading, PUNK_DBL) MASGN(compassHeading) }*/