def returnFunction(self):
# get boundaries for frequency:
minFreq = w2f(self.centerwl+self.width)
maxFreq = w2f(self.centerwl-self.width)
height = self.height
# create a function to make a spike of width width
def spike(f):
if f < minFreq:
return self.offset
elif f > maxFreq:
return self.offset
else :
return self.offset+height
return spike
def returnFunction(self):
# get boundaries for frequency:
minFreq = w2f(self.centerwl + self.width)
maxFreq = w2f(self.centerwl - self.width)
height = self.height
# create a function to make a spike of width width
def spike(f):
if f < minFreq:
return self.offset
elif f > maxFreq:
return self.offset
else:
return self.offset + height
return spike
def returnFunction(self):
t = self.t
offset = self.offset
f0 = w2f(self.w0)
print "f0 : ", f0
return lambda f: abs(f - f0) * t + offset
def returnFunction(self):
offset = self.offset
amp = self.amp
f0 = w2f(self.w0)
phi = self.phi
t = self.t
return lambda f: offset + amp * cos((f - f0) * t + phi)
def returnFunction(self):
t = self.t
offset = self.offset
f0 = w2f(self.w0)
print "f0 : " , f0
return lambda f: abs(f - f0)*t+offset
def returnFunction(self): offset = self.offset amp = self.amp f0 = w2f(self.w0) phi = self.phi t = self.t return lambda f: offset + amp*cos((f-f0)*t+phi)
def plotPhaseFunction(self, phasefunction):
" Plot the phase function, requires a pure function "
# create x-axis
wavelength = np.linspace(600, 900, 1000)
#phasefunction is dependent on frequency, not wavelength, so convert
vFun = np.vectorize(phasefunction)
phases = vFun(w2f(wavelength))
#print np.array([wavelength,phases]).transpose()
self.axPhase.plot(wavelength, phases)
self.axPhase.set_xlabel("Wavelength [nm]")
self.axPhase.set_ylabel("Phase [rad]")
self.canvas.draw()
def plotPhaseFunction(self,phasefunction):
" Plot the phase function, requires a pure function "
# create x-axis
wavelength = np.linspace(600,900,1000)
#phasefunction is dependent on frequency, not wavelength, so convert
vFun = np.vectorize(phasefunction)
phases = vFun(w2f(wavelength))
#print np.array([wavelength,phases]).transpose()
self.axPhase.plot(wavelength,phases)
self.axPhase.set_xlabel("Wavelength [nm]")
self.axPhase.set_ylabel("Phase [rad]")
self.canvas.draw()