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import os
import numpy as np
import random
import galsim
import h5py as h5
import healpy as hp
from .Star import Star
from .Galaxy import Galaxy
from .Quasar import Quasar
from ._util import seds, sed_assign, extAv
from astropy.table import Table
from astropy.coordinates import spherical_to_cartesian
nside = 128
class Catalog(object):
def __init__(self, config, chip, cat_dir, sed_dir, pRa, pDec, rotation=None, template_dir=None):
self.cat_dir = cat_dir
self.sed_dir = sed_dir
self.chip = chip
self.template_dir = template_dir
self.rng_sedGal = random.Random()
self.rng_sedStar = random.Random()
self.rng_sedGal.seed(config["seed_gal"])
self.rng_sedStar.seed(config["seed_star"])
self.seed_Av = config["seed_Av"]
self.ud = galsim.UniformDeviate(config["seed_mock"])
self.pRa = float('{:8.4f}'.format(pRa))
self.pDec = float('{:8.4f}'.format(pDec))
# star_file = 'stars_ccd' + chip.getChipLabel(chip.chipID) + '_p_RA'+str(self.pRa) + '_DE' + str(self.pDec) + '.hdf5'
# galaxy_file = 'galaxies_ccd' + chip.getChipLabel(chip.chipID) + '_p_RA'+str(self.pRa) + '_DE' + str(self.pDec) + '.hdf5'
# star_file = 'MMW_Cluster_D20_10_healpix.hdf5'
star_file = 'MMW_Cluster_D20_healpix_21.hdf5'
galaxy_file = 'galaxyCats_r_10.0_healpix.hdf5'
star_SED_file = 'SpecLib.hdf5'
self.star_path = os.path.join(cat_dir, star_file)
self.galaxy_path = os.path.join(cat_dir, galaxy_file)
self.star_SED_path = os.path.join(cat_dir, star_SED_file)
self.rotation = rotation
self._load_SED_lib_gals()
self._load_SED_lib_star()
# self._load_SED_info()
self._get_healpix_list()
self._load()
def _get_healpix_list(self):
self.sky_coverage = self.chip.getSkyCoverageEnlarged(self.chip.img.wcs, margin=0.2)
# self.sky_coverage_enlarged = self.chip.getSkyCoverageEnlarged(self.chip.img.wcs, margin=0.5)
ra_min, ra_max, dec_min, dec_max = self.sky_coverage.xmin, self.sky_coverage.xmax, self.sky_coverage.ymin, self.sky_coverage.ymax
ra = np.deg2rad(np.array([ra_min, ra_max, ra_max, ra_min]))
dec = np.deg2rad(np.array([dec_max, dec_max, dec_min, dec_min]))
# phi, theta = ra, np.pi/2. - dec
# vertices_pix = np.unique(hp.ang2pix(nside, theta, phi))
# print(vertices_pix)
vertices = spherical_to_cartesian(1., dec, ra)
self.pix_list = hp.query_polygon(nside, np.array(vertices).T, inclusive=True)
print("HEALPix List: ", self.pix_list)
def _load_SED_lib_star(self):
self.tempSED_star = h5.File(self.star_SED_path,'r')
def _load_SED_lib_gals(self):
tempdir_gal = os.path.join(self.template_dir, "Galaxy/")
# tempdir_star = os.path.join(self.template_dir, "PicklesStars/")
self.tempSed_gal, self.tempRed_gal = seds("galaxy.list", seddir=tempdir_gal)
# self.tempSed_star, self.tempRed_star = seds("star.list", seddir=tempdir_star)
def _load_SED_info(self):
sed_info_file = os.path.join(self.sed_dir, "sed.info")
sed_info = Table.read(sed_info_file, format="ascii")
self.cosids = sed_info["IDCosmoDC2"]
self.objtypes = sed_info["objType"]
def _load_gals(self, gals):
ngals = len(gals['galaxyID'])
# print(ngals)
for igals in range(ngals):
param = {}
param['ra'] = gals['ra_true'][igals]
param['dec'] = gals['dec_true'][igals]
if not self.chip.isContainObj(ra_obj=param['ra'], dec_obj=param['dec'], margin=200):
continue
param['mag_use_normal'] = gals['mag_true_g_lsst'][igals]
if param['mag_use_normal'] >= 26.5:
continue
self.ids += 1
param['id'] = self.ids
param['z'] = gals['redshift_true'][igals]
param['model_tag'] = 'None'
param['gamma1'] = 0
param['gamma2'] = 0
param['kappa'] = 0
param['delta_ra'] = 0
param['delta_dec'] = 0
sersicB = gals['sersic_bulge'][igals]
hlrMajB = gals['size_bulge_true'][igals]
hlrMinB = gals['size_minor_bulge_true'][igals]
sersicD = gals['sersic_disk'][igals]
hlrMajD = gals['size_disk_true'][igals]
hlrMinD = gals['size_minor_disk_true'][igals]
aGal = gals['size_true'][igals]
bGal = gals['size_minor_true'][igals]
param['bfrac'] = gals['bulge_to_total_ratio_i'][igals]
param['theta'] = gals['position_angle_true'][igals]
param['hlr_bulge'] = np.sqrt(hlrMajB * hlrMinB)
param['hlr_disk'] = np.sqrt(hlrMajD * hlrMinD)
param['ell_bulge'] = (hlrMajB - hlrMinB)/(hlrMajB + hlrMinB)
param['ell_disk'] = (hlrMajD - hlrMinD)/(hlrMajD + hlrMinD)
param['ell_tot'] = (aGal - bGal) / (aGal + bGal)
# Assign each galaxy a template SED
param['sed_type'] = sed_assign(phz=param['z'], btt=param['bfrac'], rng=self.rng_sedGal)
param['redden'] = self.tempRed_gal[param['sed_type']]
param['av'] = self.avGal[int(self.ud()*self.nav)]
if param['sed_type'] <= 5:
param['av'] = 0.0
param['redden'] = 0
param['star'] = 0 # Galaxy
if param['sed_type'] >= 29:
param['av'] = 0.6 * param['av'] / 3.0 # for quasar, av=[0, 0.2], 3.0=av.max-av.im
param['star'] = 2 # Quasar
if param['star'] == 0:
obj = Galaxy(param, self.rotation)
self.objs.append(obj)
if param['star'] == 2:
obj = Quasar(param)
self.objs.append(obj)
def _load_stars(self, stars):
nstars = len(stars['sourceID'])
# print(nstars)
for istars in range(nstars):
param = {}
param['ra'] = stars['RA'][istars]
param['dec'] = stars['Dec'][istars]
if not self.chip.isContainObj(ra_obj=param['ra'], dec_obj=param['dec'], margin=200):
continue
param['mag_use_normal'] = stars['app_sdss_g'][istars]
if param['mag_use_normal'] >= 26.5:
continue
self.ids += 1
param['id'] = self.ids
param['sed_type'] = stars['sourceID'][istars]
param['model_tag'] = stars['model_tag'][istars]
param['teff'] = stars['teff'][istars]
param['logg'] = stars['grav'][istars]
param['feh'] = stars['feh'][istars]
param['z'] = 0.0
param['star'] = 1 # Star
obj = Star(param)
self.objs.append(obj)
def _load(self):
self.nav = 15005
self.avGal = extAv(self.nav, seed=self.seed_Av)
# gals = Table.read(self.galaxy_path)
# stars = Table.read(self.star_path)
# self.ngals = gals['galaxyID'].size
# self.nstars = stars['sourceID'].size
gals_cat = h5.File(self.galaxy_path, 'r')['galaxies']
star_cat = h5.File(self.star_path, 'r')['catalog']
self.objs = []
self.ids = 0
for pix in self.pix_list:
gals = gals_cat[str(pix)]
stars = star_cat[str(pix)]
self._load_gals(gals)
self._load_stars(stars)
print("number of objects in catalog: ", len(self.objs))
del self.avGal
# for igals in range(self.ngals):
# param = {}
# param['id'] = igals + 1
# param['ra'] = gals['ra_true'][igals]
# param['dec'] = gals['dec_true'][igals]
# param['z'] = gals['redshift_true'][igals]
# param['model_tag'] = 'None'
# param['gamma1'] = 0
# param['gamma2'] = 0
# param['kappa'] = 0
# param['delta_ra'] = 0
# param['delta_dec'] = 0
# sersicB = gals['sersic_bulge'][igals]
# hlrMajB = gals['size_bulge_true'][igals]
# hlrMinB = gals['size_minor_bulge_true'][igals]
# sersicD = gals['sersic_disk'][igals]
# hlrMajD = gals['size_disk_true'][igals]
# hlrMinD = gals['size_minor_disk_true'][igals]
# aGal = gals['size_true'][igals]
# bGal = gals['size_minor_true'][igals]
# param['bfrac'] = gals['bulge_to_total_ratio_i'][igals]
# param['theta'] = gals['position_angle_true'][igals]
# param['hlr_bulge'] = np.sqrt(hlrMajB * hlrMinB)
# param['hlr_disk'] = np.sqrt(hlrMajD * hlrMinD)
# param['ell_bulge'] = (hlrMajB - hlrMinB)/(hlrMajB + hlrMinB)
# param['ell_disk'] = (hlrMajD - hlrMinD)/(hlrMajD + hlrMinD)
# param['ell_tot'] = (aGal - bGal) / (aGal + bGal)
# # Assign each galaxy a template SED
# param['sed_type'] = sed_assign(phz=param['z'], btt=param['bfrac'], rng=self.rng_sedGal)
# param['redden'] = self.tempRed_gal[param['sed_type']]
# param['av'] = avGal[int(self.ud()*nav)]
# if param['sed_type'] <= 5:
# param['av'] = 0.0
# param['redden'] = 0
# param['star'] = 0 # Galaxy
# if param['sed_type'] >= 29:
# param['av'] = 0.6 * param['av'] / 3.0 # for quasar, av=[0, 0.2], 3.0=av.max-av.im
# param['star'] = 2 # Quasar
# param['mag_use_normal'] = gals['mag_true_g_lsst'][igals]
# if param['star'] == 0:
# obj = Galaxy(param, self.rotation)
# self.objs.append(obj)
# if param['star'] == 2:
# obj = Quasar(param)
# self.objs.append(obj)
# for istars in range(self.nstars):
# param = {}
# param['id'] = self.ngals + istars + 1
# param['ra'] = stars['RA'][istars]
# param['dec'] = stars['Dec'][istars]
# param['sed_type'] = stars['sourceID'][istars]
# param['model_tag'] = stars['model_tag'][istars]
# param['z'] = 0.0
# param['star'] = 1 # Star
# param['mag_use_normal'] = stars['app_sdss_g'][istars]
# obj = Star(param)
# self.objs.append(obj)
# del gals
# del stars
# del avGal