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Fixed database typo and removed unnecessary class identifier.

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Batuhan Berk Başoğlu 2020-10-14 10:10:37 -04:00
parent 00ad49a143
commit 45fb349a7d
5098 changed files with 952558 additions and 85 deletions
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venv/Lib/site-packages/skimage/measure/tests/test_polygon.py Normal file
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import numpy as np
from skimage.measure import approximate_polygon, subdivide_polygon
from skimage.measure._polygon import _SUBDIVISION_MASKS
from skimage._shared import testing
from skimage._shared.testing import assert_array_equal, assert_equal
square = np.array([
[0, 0], [0, 1], [0, 2], [0, 3],
[1, 3], [2, 3], [3, 3],
[3, 2], [3, 1], [3, 0],
[2, 0], [1, 0], [0, 0]
])
def test_approximate_polygon():
out = approximate_polygon(square, 0.1)
assert_array_equal(out, square[(0, 3, 6, 9, 12), :])
out = approximate_polygon(square, 2.2)
assert_array_equal(out, square[(0, 6, 12), :])
out = approximate_polygon(square[(0, 1, 3, 4, 5, 6, 7, 9, 11, 12), :], 0.1)
assert_array_equal(out, square[(0, 3, 6, 9, 12), :])
out = approximate_polygon(square, -1)
assert_array_equal(out, square)
out = approximate_polygon(square, 0)
assert_array_equal(out, square)
def test_subdivide_polygon():
new_square1 = square
new_square2 = square[:-1]
new_square3 = square[:-1]
# test iterative subdvision
for _ in range(10):
square1, square2, square3 = new_square1, new_square2, new_square3
# test different B-Spline degrees
for degree in range(1, 7):
mask_len = len(_SUBDIVISION_MASKS[degree][0])
# test circular
new_square1 = subdivide_polygon(square1, degree)
assert_array_equal(new_square1[-1], new_square1[0])
assert_equal(new_square1.shape[0],
2 * square1.shape[0] - 1)
# test non-circular
new_square2 = subdivide_polygon(square2, degree)
assert_equal(new_square2.shape[0],
2 * (square2.shape[0] - mask_len + 1))
# test non-circular, preserve_ends
new_square3 = subdivide_polygon(square3, degree, True)
assert_equal(new_square3[0], square3[0])
assert_equal(new_square3[-1], square3[-1])
assert_equal(new_square3.shape[0],
2 * (square3.shape[0] - mask_len + 2))
# not supported B-Spline degree
with testing.raises(ValueError):
subdivide_polygon(square, 0)
with testing.raises(ValueError):
subdivide_polygon(square, 8)