def test_extent(self):
"""
Testing the Extent3D aggregate for 3D models.
"""
self._load_city_data()
# `SELECT ST_Extent3D(point) FROM geo3d_city3d;`
ref_extent3d = (-123.305196, -41.315268, 14, 174.783117, 48.462611, 1433)
extent = City3D.objects.aggregate(Extent3D('point'))['point__extent3d']
def check_extent3d(extent3d, tol=6):
for ref_val, ext_val in zip(ref_extent3d, extent3d):
self.assertAlmostEqual(ref_val, ext_val, tol)
check_extent3d(extent)
self.assertIsNone(City3D.objects.none().aggregate(Extent3D('point'))['point__extent3d'])
def test03b_extent(self):
"Testing the Extent3D aggregate for 3D models."
# `SELECT ST_Extent3D(point) FROM geo3d_city3d;`
ref_extent3d = (-123.305196, -41.315268, 14,174.783117, 48.462611, 1433)
extent1 = City3D.objects.aggregate(Extent3D('point'))['point__extent3d']
extent2 = City3D.objects.extent3d()
def check_extent3d(extent3d, tol=6):
for ref_val, ext_val in zip(ref_extent3d, extent3d):
self.assertAlmostEqual(ref_val, ext_val, tol)
for e3d in [extent1, extent2]:
check_extent3d(e3d)