def connectSpectrometer(self):
try:
self.device = SpectrometerDevice()
except:
self.deviceDisconnected.emit()
return
self.deviceConnected.emit()
def __init__(self):
QtCore.QObject.__init__(self)
self.device = SpectrometerDevice()
class SpectrometerWorkerClass(QtCore.QObject):
newSpectrum = QtCore.pyqtSignal(list, float)
deviceConnected = QtCore.pyqtSignal()
deviceDisconnected = QtCore.pyqtSignal()
liveUpdated = QtCore.pyqtSignal(list, float)
newWavelengths = QtCore.pyqtSignal(list)
closed = QtCore.pyqtSignal()
aquireComplete = QtCore.pyqtSignal(bool)
def __init__(self):
QtCore.QObject.__init__(self)
self.device = SpectrometerDevice()
def initialise(self):
self.temperatureDevice = TemperatureDevice(self)
self.temperatureDevice.trigger.connect(self.aquire)
self.temperatureDevice.aquireComplete.connect(self.aquireComplete)
self.tempTrigger = False
self.startTime = 0
self.refresh_interval = 500
self.getWavelengths()
#self.liveVariable = DB.Variable.textDict['live']
#self.liveUpdated.connect(self.liveVariable.updateLiveData)
#self.temperatureDevice.measure()
@QtCore.pyqtSlot()
def connectSpectrometer(self):
try:
self.device = SpectrometerDevice()
except:
self.deviceDisconnected.emit()
return
self.deviceConnected.emit()
@QtCore.pyqtSlot()
def close(self):
self.device.close()
self.temperatureDevice.close()
self.closed.emit()
def getWavelengths(self):
print 'getting wavelengths...'
self.newWavelengths.emit(self.device.wavelengths)
@QtCore.pyqtSlot()
def disconnectSpectrometer(self):
if self.device is not None:
self.device.close()
self.device = None
@QtCore.pyqtSlot(int)
def setIntegrationTime(self, time):
if self.device is None:
return
self.device.setIntTime(time*1000)
@QtCore.pyqtSlot(int)
def setTrigger(self, triggerType):
if self.device is None:
return
self.device.setTrigger(triggerType)
@QtCore.pyqtSlot()
def getSpectrum(self):
if self.device is None:
return
return self.device.getSpectrum()
"""
spec = list(self.temperatureDevice.getTempSampleSpectrum())
spec.extend( [0.0] * (len(self.device.wavelengths) - len(spec)) )
if len(spec) > len(self.device.wavelengths):
spec = spec[:len(self.device.wavelengths)]
#print 'spec contains: %s' %`spec[:10]`
#print 'len(x)=%d , len(y)=%d' %(len(self.device.wavelengths), len(spec))
if len(spec) == len(self.device.wavelengths):
return spec
else:
return self.device.getSpectrum()
"""
@QtCore.pyqtSlot()
def startAquiring(self):
if self.tempTrigger:
self.temperatureDevice.aquiring = True
else:
self.aquire()
self.aquireComplete.emit(True)
@QtCore.pyqtSlot()
def aquire(self):
self.newSpectrum.emit(self.device.getSpectrum(), self.temperatureDevice.temp)
@QtCore.pyqtSlot(int)
def tempTriggerChecked(self, state):
if state == QtCore.Qt.Checked:
self.tempTrigger = True
else:
self.tempTrigger = False
@QtCore.pyqtSlot()
def updateLive(self):
delta_time = time() - self.startTime
wait_correction = self.refresh_interval - delta_time*1000
"""
if wait_correction > 0:
QtCore.QTimer.singleShot(wait_correction, self.updateLiveNow)
else:
self.updateLiveNow()
"""
self.updateLiveNow()
def updateLiveNow(self):
data = self.getSpectrum()
self.liveUpdated.emit(data, self.temperatureDevice.temp)
self.startTime = time()
@QtCore.pyqtSlot(int)
def setLivePollRate(self, refresh_interval):
self.refresh_interval = refresh_interval