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)