def test_ftAxis_time(self):
time_max = 10000 # fs
Npts = 1024
omega_grid, time_grid = utils.ftAxis_time(Npts, time_max)
assert len(omega_grid) == Npts
assert len(time_grid) == Npts
assert np.max(omega_grid) == (Npts - 1) / 2 * 2 * np.pi / time_max
with pytest.raises(TypeError):
assert utils.ftAxis_time("40", time_max)
with pytest.raises(ValueError):
assert utils.ftAxis_time(0, time_max)
def test_ftAxis_time(self):
time_max = 10000 # fs
Npts = 1024
omega_grid, time_grid = utils.ftAxis_time(Npts, time_max)
assert len(omega_grid) == Npts
assert len(time_grid) == Npts
assert np.max(omega_grid) == (Npts - 1) / 2 * 2 * np.pi / time_max
def calculate_fft(self):
ftaxis, axis = ftAxis_time(len(self.xaxis),
np.max(self.xaxis) - np.min(self.xaxis))
self.xaxisft = ftaxis / (2 * np.pi)
self.data_fft = ft(self.data)