/usr/lib/python3/dist-packages/photutils/geometry/tests/test_rectangular_overlap_grid.py is in python3-photutils 0.4-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | # Licensed under a 3-clause BSD style license - see LICENSE.rst
from __future__ import (absolute_import, division, print_function,
unicode_literals)
import itertools
from numpy.testing import assert_allclose
import pytest
from .. import rectangular_overlap_grid
grid_sizes = [50, 500, 1000]
rect_sizes = [0.2, 0.4, 0.8]
angles = [0.0, 0.5, 1.0]
subsamples = [1, 5, 10]
arg_list = ['grid_size', 'rect_size', 'angle', 'subsample']
@pytest.mark.parametrize(('grid_size', 'rect_size', 'angle', 'subsample'),
list(itertools.product(grid_sizes, rect_sizes,
angles, subsamples)))
def test_rectangular_overlap_grid(grid_size, rect_size, angle, subsample):
"""
Test normalization of the overlap grid to make sure that a fully
enclosed pixel has a value of 1.0.
"""
g = rectangular_overlap_grid(-1.0, 1.0, -1.0, 1.0, grid_size, grid_size,
rect_size, rect_size, angle, 0, subsample)
assert_allclose(g.max(), 1.0)
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