def get_neighbouring_user_images(self, limit=6):
user_images = UserImage.objects.all_visible()
from django.db.models import Q
if limit is not None:
# Try within my own healpix & scale
u0 = user_images.filter(jobs__calibration__sky_location__nside=self.nside,
jobs__calibration__sky_location__healpix=self.healpix)
if u0.count() > limit:
#print('Found', u0.count(), 'within my own scale & healpix')
return u0
# add neighbors at current scale
neighbours = anutil.healpix_get_neighbours(self.healpix, self.nside)
q1 = Q(jobs__calibration__sky_location__nside = self.nside,
jobs__calibration__sky_location__healpix__in = neighbours + [self.healpix])
if limit is not None:
u1 = user_images.filter(q1)
if u1.count() > limit:
#print('Found', u1.count(), 'within my own scale')
return u1
# next bigger scale
q2 = Q(jobs__calibration__sky_location__nside = self.nside//2,
jobs__calibration__sky_location__healpix = self.healpix//4)
# next smaller scale
neighbours = set()
for i in range(4):
n = anutil.healpix_get_neighbours(self.healpix*4+i, self.nside*2)
neighbours.update(n)
q3 = Q(jobs__calibration__sky_location__nside = self.nside * 2,
jobs__calibration__sky_location__healpix__in = list(neighbours))
return user_images.filter(q1 | q2 | q3)
def get_neighbouring_user_images(self):
user_images = UserImage.objects.all_visible()
from django.db.models import Q
# add neighbors at current scale
neighbours = anutil.healpix_get_neighbours(self.healpix, self.nside)
q1 = Q(jobs__calibration__sky_location__nside = self.nside,
jobs__calibration__sky_location__healpix__in = neighbours + [self.healpix])
# next bigger scale
q2 = Q(jobs__calibration__sky_location__nside = self.nside/2,
jobs__calibration__sky_location__healpix = self.healpix / 4)
# next smaller scale
neighbours = set()
for i in range(4):
n = anutil.healpix_get_neighbours(self.healpix*4+i, self.nside*2)
neighbours.update(n)
q3 = Q(jobs__calibration__sky_location__nside = self.nside * 2,
jobs__calibration__sky_location__healpix__in = list(neighbours))
return user_images.filter(q1 | q2 | q3)
def get_neighbouring_user_images(self):
user_images = UserImage.objects.all_visible()
from django.db.models import Q
# add neighbors at current scale
neighbours = anutil.healpix_get_neighbours(self.healpix, self.nside)
q1 = Q(jobs__calibration__sky_location__nside = self.nside,
jobs__calibration__sky_location__healpix__in = neighbours + [self.healpix])
# next bigger scale
q2 = Q(jobs__calibration__sky_location__nside = self.nside/2,
jobs__calibration__sky_location__healpix = self.healpix / 4)
# next smaller scale
neighbours = set()
for i in range(4):
n = anutil.healpix_get_neighbours(self.healpix*4+i, self.nside*2)
neighbours.update(n)
q3 = Q(jobs__calibration__sky_location__nside = self.nside * 2,
jobs__calibration__sky_location__healpix__in = list(neighbours))
return user_images.filter(q1 | q2 | q3)