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# Copyright (c) 2018-2020 Manfred Moitzi
# License: MIT License
from ezdxf.math.bspline import (
open_uniform_knot_vector,
uniform_knot_vector,
required_knot_values,
)
open_uniform_order2 = [0.0, 0.0, 1.0, 2.0, 3.0, 4.0, 4.0]
open_uniform_order3 = [0.0, 0.0, 0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 5.0, 5.0]
open_uniform_order4 = [
0.0,
0.0,
0.0,
0.0,
1.0,
2.0,
3.0,
4.0,
5.0,
6.0,
6.0,
6.0,
6.0,
]
def _normalize(values, max_value):
return [v / max_value for v in values]
def test_open_uniform_knot_order_2():
result = open_uniform_knot_vector(5, 2, normalize=False)
assert len(result) == required_knot_values(5, 2)
assert result == open_uniform_order2
assert open_uniform_knot_vector(5, 2, normalize=True) == _normalize(
open_uniform_order2, 4.0
)
def test_open_uniform_knot_order_3():
result = open_uniform_knot_vector(7, 3, normalize=False)
assert len(result) == required_knot_values(7, 3)
assert result == open_uniform_order3
assert open_uniform_knot_vector(7, 3, normalize=True) == _normalize(
open_uniform_order3, 5.0
)
def test_open_uniform_knot_order_4():
result = open_uniform_knot_vector(9, 4, normalize=False)
assert len(result) == required_knot_values(9, 4)
assert result == open_uniform_order4
assert open_uniform_knot_vector(9, 4, normalize=True) == _normalize(
open_uniform_order4, 6.0
)
uniform_order2 = [0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0]
uniform_order3 = [0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0]
uniform_order4 = [
0.0,
1.0,
2.0,
3.0,
4.0,
5.0,
6.0,
7.0,
8.0,
9.0,
10.0,
11.0,
12.0,
]
def test_uniform_knot_order_2():
result = uniform_knot_vector(5, 2, normalize=False)
assert len(result) == required_knot_values(5, 2)
assert result == uniform_order2
assert uniform_knot_vector(5, 2, normalize=True) == _normalize(
uniform_order2, 6.0
)
def test_uniform_knot_order_3():
result = uniform_knot_vector(7, 3, normalize=False)
assert len(result) == required_knot_values(7, 3)
assert result == uniform_order3
assert uniform_knot_vector(7, 3, normalize=True) == _normalize(
uniform_order3, 9.0
)
def test_uniform_knot_order_4():
result = uniform_knot_vector(9, 4, normalize=False)
assert len(result) == required_knot_values(9, 4)
assert result == uniform_order4
assert uniform_knot_vector(9, 4, normalize=True) == _normalize(
uniform_order4, 12.0
)
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