def gen_timeseries(self):
"""
Time loop wrapper for prescriptions.
:param inqueue: time index for parallelization (used by multiprocess)
:param out_queue: series of intensity images (spectral image cube) in the multiprocessing format
:return: returns the observation sequence, but through the multiprocessing tools, not through more standard
return protocols.
:timestep_field is the complex-valued E-field in the planes specified by sp.save_list.
has shape [timestep, planes, wavelength, objects, x, y]
:sampling is the final sampling per wavelength in the focal plane
"""
start = time.time()
for it, t in enumerate(iter(self.time_idx.get, sentinel)):
kwargs = {'iter': t, 'params': [iop, sp, ap, tp, cdip]}
timestep_field, sampling = proper.prop_run(tp.prescription, 1, sp.grid_size, PASSVALUE=kwargs,
VERBOSE=False, TABLE=False) # 1 is dummy wavelength
chunk_ind = it % self.chunk_steps
self.fields_chunk[chunk_ind] = timestep_field
self.seen_substeps[chunk_ind] = 1
chunk_seen = np.all(self.seen_substeps)
final_chunk_seen = it == sp.numframes-1 and np.all(self.seen_substeps[:self.final_chunk_size])
while (chunk_ind == self.chunk_steps-1 and not chunk_seen) or \
(chunk_ind == self.final_chunk_size-1 and not final_chunk_seen):
print(f'Waiting for chunk {it//self.chunk_steps} to finish being poplulated before saving') #if sp.verbose
time.sleep(1)
if chunk_seen or final_chunk_seen: # chunk completed or simulation finished
self.out_chunk.put((self.fields_chunk, sampling))
if sp.save_to_disk:
self.save(self.fields_chunk, sampling)
if sp.debug:
view_spectra(np.sum(np.abs(self.fields_chunk) ** 2, axis=(0, 1))[:, 0],
title='Chunk Spectral Cube')
self.init_fields_chunk()
now = time.time()
elapsed = float(now - start)
each_iter = float(elapsed) / (sp.numframes + 1)
print('***********************************')
print(f'{elapsed/60.:.2f} minutes elapsed, each time step took {each_iter:.2f} minutes')
def get_R_hyper(self, Rs, plot=False):
"""Each pixel of the array has a matrix of probabilities that depends on the input wavelength"""
print('Creating a cube of R standard deviations')
m = (mp.R_spec * Rs) / (ap.wvl_range[1] - ap.wvl_range[0]
) # looses R of 10% over the 700 wvl_range
c = Rs - m * ap.wvl_range[0] # each c depends on the R @ 800
waves = np.ones(
(np.shape(m)[1],
np.shape(m)[0], ap.n_wvl_final + 5)) * np.linspace(
ap.wvl_range[0], ap.wvl_range[1], ap.n_wvl_final + 5)
waves = np.transpose(
waves
) # make a tensor of 128x128x10 where every 10 vector is 800... 1500
R_spec = m * waves + c # 128x128x10 tensor is now lots of simple linear lines e.g. 50,49,.. 45
# probs = np.ones((np.shape(R_spec)[0],np.shape(R_spec)[1],np.shape(R_spec)[2],
# mp.res_elements))*np.linspace(0, 1, mp.res_elements)
# # similar to waves but 0... 1 using 128 elements
# R_spec = np.repeat(R_spec[:,:,:,np.newaxis], mp.res_elements, 3) # creat 128 repeats of R_spec so (10,128,128,128)
# mp.R_probs = gaussian(0.5, R_spec, probs) #each xylocation is gaussian that gets wider for longer wavelengths
sigs_w = (waves / R_spec) / 2.35 #R = w/dw & FWHM = 2.35*sig
# plt.plot(range(0,1500),spec.phase_cal(np.arange(0,1500)))
# plt.show()
sigs_p = self.phase_cal(sigs_w) - self.phase_cal(
np.zeros_like((sigs_w)))
if plot:
plt.figure()
plt.plot(R_spec[:, 0, 0])
plt.plot(R_spec[:, 50, 15])
# plt.figure()
# plt.plot(sigs_w[:,0,0])
# plt.plot(sigs_w[:,50,15])
# plt.figure()
# plt.plot(sigs_p[:, 0, 0])
# plt.plot(sigs_p[:, 50, 15])
# plt.figure()
# plt.imshow(sigs_p[:,:,0], aspect='auto')
view_spectra(sigs_w, show=False)
view_spectra(sigs_p, show=False)
plt.figure()
plt.plot(np.mean(sigs_w, axis=(1, 2)))
plt.figure()
plt.plot(np.mean(sigs_p, axis=(1, 2)))
# plt.imshow(mp.R_probs[:,0,0,:])
plt.show(block=True)
return sigs_p
title=f"White light image at timestep {sp.numframes} \n" # img
f"AO={tp.use_ao}",
# f"Grid Size = {sp.grid_size}, Beam Ratio = {sp.beam_ratio} ",
# f"sampling = {sampling*1e6:.4f} (um/gridpt)",
logZ=True,
dx=fp_sampling[0],
vlim=(1e-7, 1e-3))
# Plotting Spectra at last tstep
if sp.show_spectra:
tstep = sp.numframes - 1
view_spectra(
focal_plane[sp.numframes - 1],
title=f"Intensity per Spectral Bin at Timestep {tstep} \n"
f" AO={tp.use_ao}",
# f"Beam Ratio = {sp.beam_ratio:.4f}",# sampling = {sampling*1e6:.4f} [um/gridpt]",
logZ=True,
subplt_cols=sp.spectra_cols,
vlim=(1e-4, 1e-1),
dx=fp_sampling)
# Plotting Timeseries in White Light
if sp.show_tseries:
img_tseries = np.sum(focal_plane, axis=1) # sum over wavelength
view_timeseries(img_tseries,
title=f"White Light Timeseries\n"
f"AO={tp.use_ao}",
subplt_cols=sp.tseries_cols,
logZ=True,
vlim=(1e-6, 1e-3))
# dx=fp_sampling[0])
# f"Grid Size = {sp.grid_size}, Beam Ratio = {sp.beam_ratio} ",
# f"sampling = {sampling*1e6:.4f} (um/gridpt)",
logZ=False,
# dx=fp_sampling[0],
zlabel='photon counts',
vlim=(0, 800),
show=False) # (1e-3, 1e-1) (None,None)
# Plotting Spectra at last tstep
if sp.show_spectra:
tstep = sp.numframes - 1
view_spectra(
focal_plane[sp.numframes - 1],
title=f"Intensity per Spectral Bin at Timestep {tstep} \n"
f"CDI={cdi.use_cdi}, Atmos={tp.use_atmos}, Aberrations={tp.use_aber}",
# f"Beam Ratio = {sp.beam_ratio:.4f}",# sampling = {sampling*1e6:.4f} [um/gridpt]",
logZ=True,
subplt_cols=sp.spectra_cols,
#vlim=(1e-7, 1e-3),
dx=fp_sampling,
show=False)
# Plotting Timeseries in White Light
if sp.show_tseries:
img_tseries = np.sum(focal_plane, axis=1) # sum over wavelength
view_timeseries(
img_tseries,
cdi,
title=f"White Light Timeseries\n"
f"CDI={cdi.use_cdi}, Atmos={tp.use_atmos}, Aberrations={tp.use_aber}",
subplt_cols=sp.tseries_cols,
logZ=True,
}
if __name__ == '__main__':
# =======================================================================
# Run it!!!!!!!!!!!!!!!!!
# =======================================================================
cpx_sequence, sampling = mm.RunMedis().telescope()
# cpx_sequence, sampling = mm.run_medis('Fields')
# med = mm.Medis()
#
# cpx_sequence, sampling = mm.RunMedis().telescope()
fp_sampling = sampling[-1][:]
print(fp_sampling)
for o in range(len(ap.contrast) + 1):
print(cpx_sequence.shape)
datacube = np.sum(np.abs(cpx_sequence)**2, axis=(0, 1))[:, o]
print(o, datacube.shape)
view_spectra(datacube,
logZ=True,
title='Spectral Channels',
dx=fp_sampling)
# fp_sampling = sampling[-1][:]
# print(fp_sampling)
# for o in range(len(ap.contrast)+1):
# print(cpx_sequence.shape)
# datacube = np.sum(np.abs(cpx_sequence)**2, axis=(0,1))[:,o]
# print(o, datacube.shape)
# view_spectra(datacube, logZ=True, title='Spectral Channels', dx=fp_sampling)
