def init_dict():
sciimg = np.ones((1000, 1000)).astype(float)
# Slits
left = np.full((1000, 3), 2, dtype=float)
right = np.full((1000, 3), 8, dtype=float)
left[:, 1] = 15.
right[:, 1] = 21.
left[:, 2] = 25.
right[:, 2] = 31.
slits = slittrace.SlitTraceSet(left,
right,
'MultiSlit',
nspat=1000,
PYP_SPEC='dummy')
#
sdict = dict(
sciimg=sciimg,
ivarraw=0.1 * np.ones_like(sciimg),
skymodel=0.95 * np.ones_like(sciimg),
objmodel=np.ones_like(sciimg),
ivarmodel=0.05 * np.ones_like(sciimg),
waveimg=1000 * np.ones_like(sciimg),
bpmmask=np.ones_like(sciimg).astype(int),
det=1,
detector=None,
slits=slits,
tilts=np.ones_like(sciimg).astype(float),
#tilts=wavetilts.WaveTilts(**test_wavetilts.instant_dict),
sci_spat_flexure=3.5,
)
return sdict
def generate_mask(self):
"""Generate the mask of sky regions
Returns:
ndarray : Boolean mask containing sky regions
"""
nreg = 0
left_edg, righ_edg = np.zeros((self.nspec, 0)), np.zeros(
(self.nspec, 0))
spec_min, spec_max = np.array([]), np.array([])
for sl in range(self._nslits):
diff = self.slits_right[:, sl] - self.slits_left[:, sl]
tmp = np.zeros(self._resolution + 2)
tmp[1:-1] = self._skyreg[sl]
wl = np.where(tmp[1:] > tmp[:-1])[0]
wr = np.where(tmp[1:] < tmp[:-1])[0]
for rr in range(wl.size):
left = self.slits_left[:, sl] + wl[rr] * diff / (
self._resolution - 1.0)
righ = self.slits_left[:, sl] + wr[rr] * diff / (
self._resolution - 1.0)
left_edg = np.append(left_edg, left[:, np.newaxis], axis=1)
righ_edg = np.append(righ_edg, righ[:, np.newaxis], axis=1)
nreg += 1
spec_min = np.append(spec_min, self.slits.specmin[sl])
spec_max = np.append(spec_max, self.slits.specmax[sl])
# Instantiate the regions
regions = slittrace.SlitTraceSet(left_edg,
righ_edg,
self.pypeline,
nspec=self.nspec,
nspat=self.nspat,
mask=self.slits.mask,
specmin=spec_min,
specmax=spec_max,
binspec=self.slits.binspec,
binspat=self.slits.binspat,
pad=0)
# Generate the mask, and return
return (regions.slit_img(use_spatial=False) >= 0).astype(np.int)
def init_dict():
sciimg = np.ones((1000, 1000)).astype(float)
# Slits
left = np.full((1000, 3), 2, dtype=float)
right = np.full((1000, 3), 8, dtype=float)
left[:, 1] = 15.
right[:, 1] = 21.
left[:, 2] = 25.
right[:, 2] = 31.
slits = slittrace.SlitTraceSet(left,
right,
'MultiSlit',
nspat=1000,
PYP_SPEC='dummy')
# Construct table of spectral flexure
spec_flex_table = Table()
spec_flex_table['spat_id'] = slits.spat_id
spec_flex_table['sci_spec_flexure'] = np.zeros(left.shape[1])
#
sdict = dict(
sciimg=sciimg,
ivarraw=0.1 * np.ones_like(sciimg),
skymodel=0.95 * np.ones_like(sciimg),
objmodel=np.ones_like(sciimg),
ivarmodel=0.05 * np.ones_like(sciimg),
scaleimg=np.ones_like(sciimg),
waveimg=1000 * np.ones_like(sciimg),
bpmmask=np.ones_like(sciimg).astype(int),
det=1,
detector=None,
slits=slits,
tilts=np.ones_like(sciimg).astype(float),
#tilts=wavetilts.WaveTilts(**test_wavetilts.instant_dict),
sci_spat_flexure=3.5,
sci_spec_flexure=spec_flex_table,
vel_type='HELIOCENTRIC',
vel_corr=1.0 + 1.0e-5)
return sdict
def test_wavecalib():
"Fuss with the WaveCalib DataContainer"
out_file = data_path('test_wavecalib.fits')
if os.path.isfile(out_file):
os.remove(out_file)
# Pieces
pypeitFit = fitting.PypeItFit(fitc=np.arange(5).astype(float),
xval=np.linspace(1, 100., 100))
# 2D fit
pypeitFit2 = fitting.PypeItFit(fitc=np.linspace((1, 2), (10, 20), 10),
xval=np.linspace(1, 100., 100),
x2=np.linspace(1, 100., 100))
waveFit = wv_fitting.WaveFit(232,
pypeitfit=pypeitFit,
pixel_fit=np.arange(10).astype(float),
wave_fit=np.linspace(1., 10., 10))
waveCalib = wavecalib.WaveCalib(wv_fits=np.asarray([waveFit]),
nslits=1,
spat_ids=np.asarray([232]),
wv_fit2d=pypeitFit2)
# Write
waveCalib.to_file(out_file)
# Read
waveCalib2 = wavecalib.WaveCalib.from_file(out_file)
# Test
assert np.array_equal(waveCalib.spat_ids,
waveCalib2.spat_ids), 'Bad spat_ids'
assert np.array_equal(waveCalib.wv_fits[0].pypeitfit.fitc,
waveCalib2.wv_fits[0].pypeitfit.fitc), 'Bad fitc'
assert np.array_equal(waveCalib.wv_fit2d.xval, waveCalib2.wv_fit2d.xval)
# Write again!
waveCalib2.to_file(out_file, overwrite=True)
# Finish
os.remove(out_file)
# With None (failed wave)
spat_ids = np.asarray([232, 949])
waveCalib3 = wavecalib.WaveCalib(wv_fits=np.asarray(
[waveFit, wv_fitting.WaveFit(949)]),
nslits=2,
spat_ids=spat_ids,
wv_fit2d=pypeitFit2)
waveCalib3.to_file(out_file)
waveCalib4 = wavecalib.WaveCalib.from_file(out_file)
# Check masking
slits = slittrace.SlitTraceSet(left_init=np.full((1000, 2), 2,
dtype=float),
right_init=np.full((1000, 2),
8,
dtype=float),
pypeline='MultiSlit',
spat_id=spat_ids,
nspat=2,
PYP_SPEC='dummy')
slits.mask_wvcalib(waveCalib3)
assert slits.bitmask.flagged(slits.mask[1], flag='BADWVCALIB')
# Finish
os.remove(out_file)
def create_pseudo_image(self, coadd_list):
"""
..todo.. see below
THIS UNDOCUMENTED CODE PROBABLY SHOULD GENERATE AND RETURN
STANDARD PYPEIT OBJCTS INSTEAD OF SOME UNDEFINED DICT"""
# Masking
# TODO -- Make this a method or something
slits = self.stack_dict['slits_list'][0]
reduce_bpm = (slits.mask > 0) & (np.invert(slits.bitmask.flagged(
slits.mask, flag=slits.bitmask.exclude_for_reducing)))
good_slits = np.where(np.invert(reduce_bpm))[0]
nspec_vec = np.zeros(self.nslits,dtype=int)
nspat_vec = np.zeros(self.nslits,dtype=int)
for kk, cdict in enumerate(coadd_list):
islit = good_slits[kk]
nspec_vec[islit]=cdict['nspec']
nspat_vec[islit]=cdict['nspat']
# Determine the size of the pseudo image
nspat_pad = 10
nspec_pseudo = nspec_vec.max()
nspat_pseudo = int(np.sum(nspat_vec) + (self.nslits + 1)*nspat_pad) # Cast for SlitTraceSet
spec_vec_pseudo = np.arange(nspec_pseudo)
shape_pseudo = (nspec_pseudo, nspat_pseudo)
imgminsky_pseudo = np.zeros(shape_pseudo)
sciivar_pseudo = np.zeros(shape_pseudo)
waveimg_pseudo = np.zeros(shape_pseudo)
tilts_pseudo = np.zeros(shape_pseudo)
spat_img_pseudo = np.zeros(shape_pseudo)
nused_pseudo = np.zeros(shape_pseudo, dtype=int)
inmask_pseudo = np.zeros(shape_pseudo, dtype=bool)
wave_mid = np.zeros((nspec_pseudo, self.nslits))
wave_mask = np.zeros((nspec_pseudo, self.nslits),dtype=bool)
wave_min = np.zeros((nspec_pseudo, self.nslits))
wave_max = np.zeros((nspec_pseudo, self.nslits))
dspat_mid = np.zeros((nspat_pseudo, self.nslits))
spat_left = nspat_pad
slit_left = np.zeros((nspec_pseudo, self.nslits))
slit_righ = np.zeros((nspec_pseudo, self.nslits))
spec_min1 = np.zeros(self.nslits)
spec_max1 = np.zeros(self.nslits)
nspec_grid = self.wave_grid_mid.size
for kk, coadd_dict in enumerate(coadd_list):
islit = good_slits[kk]
spat_righ = spat_left + nspat_vec[islit]
ispec = slice(0,nspec_vec[islit])
ispat = slice(spat_left,spat_righ)
imgminsky_pseudo[ispec, ispat] = coadd_dict['imgminsky']
sciivar_pseudo[ispec, ispat] = coadd_dict['sciivar']
waveimg_pseudo[ispec, ispat] = coadd_dict['waveimg']
tilts_pseudo[ispec, ispat] = coadd_dict['tilts']
# spat_img_pseudo is the sub-pixel image position on the rebinned pseudo image
inmask_pseudo[ispec, ispat] = coadd_dict['outmask']
image_temp = (coadd_dict['dspat'] - coadd_dict['dspat_mid'][0] + spat_left)*coadd_dict['outmask']
spat_img_pseudo[ispec, ispat] = image_temp
nused_pseudo[ispec, ispat] = coadd_dict['nused']
wave_min[ispec, islit] = coadd_dict['wave_min']
wave_max[ispec, islit] = coadd_dict['wave_max']
wave_mid[ispec, islit] = coadd_dict['wave_mid']
wave_mask[ispec, islit] = True
# Fill in the rest of the wave_mid with the corresponding points in the wave_grid
#wave_this = wave_mid[wave_mask[:,islit], islit]
#ind_upper = np.argmin(np.abs(self.wave_grid_mid - wave_this.max())) + 1
#if nspec_vec[islit] != nspec_pseudo:
# wave_mid[nspec_vec[islit]:, islit] = self.wave_grid_mid[ind_upper:ind_upper + (nspec_pseudo-nspec_vec[islit])]
dspat_mid[ispat, islit] = coadd_dict['dspat_mid']
slit_left[:,islit] = np.full(nspec_pseudo, spat_left)
slit_righ[:,islit] = np.full(nspec_pseudo, spat_righ)
spec_max1[islit] = nspec_vec[islit]-1
spat_left = spat_righ + nspat_pad
slits_pseudo \
= slittrace.SlitTraceSet(slit_left, slit_righ, self.pypeline, nspat=nspat_pseudo,
PYP_SPEC=self.spectrograph.name,
specmin=spec_min1, specmax=spec_max1, ech_order=slits.ech_order)
#master_key=self.stack_dict['master_key_dict']['trace'],
#master_dir=self.master_dir)
slitmask_pseudo = slits_pseudo.slit_img()
# This is a kludge to deal with cases where bad wavelengths result in large regions where the slit is poorly sampled,
# which wreaks havoc on the local sky-subtraction
min_slit_frac = 0.70
spec_min = np.zeros(self.nslits)
spec_max = np.zeros(self.nslits)
for slit_idx in good_slits:
spat_id = slits_pseudo.spat_id[slit_idx]
slit_width = np.sum(inmask_pseudo*(slitmask_pseudo == spat_id),axis=1)
slit_width_img = np.outer(slit_width, np.ones(nspat_pseudo))
med_slit_width = np.median(slit_width_img[slitmask_pseudo == spat_id])
# TODO -- need inline docs
nspec_eff = np.sum(slit_width > min_slit_frac*med_slit_width)
nsmooth = int(np.fmax(np.ceil(nspec_eff*0.02),10))
slit_width_sm = ndimage.filters.median_filter(slit_width, size=nsmooth, mode='reflect')
igood = (slit_width_sm > min_slit_frac*med_slit_width)
# TODO -- need inline docs
spec_min[slit_idx] = spec_vec_pseudo[igood].min()
spec_max[slit_idx] = spec_vec_pseudo[igood].max()
bad_pix = (slit_width_img < min_slit_frac*med_slit_width) & (slitmask_pseudo == spat_id)
inmask_pseudo[bad_pix] = False
# Update slits_pseudo
slits_pseudo.specmin = spec_min
slits_pseudo.specmax = spec_max
return dict(nspec=nspec_pseudo, nspat=nspat_pseudo, imgminsky=imgminsky_pseudo,
sciivar=sciivar_pseudo, inmask=inmask_pseudo, tilts=tilts_pseudo,
waveimg=waveimg_pseudo, spat_img=spat_img_pseudo, slits=slits_pseudo,
wave_mask=wave_mask, wave_mid=wave_mid, wave_min=wave_min, wave_max=wave_max)
