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# Copyright (c) 2021, Manfred Moitzi
# License: MIT License
# Test only basic features of Cython implementation,
# Full testing and compatibility check with Python implementation
# is located in test suite 632.
import pytest
bezier = pytest.importorskip("ezdxf.acc.bezier3p")
Bezier3P = bezier.Bezier3P
from ezdxf.acc.vector import Vec3
from ezdxf.acc.matrix44 import Matrix44
# check functions:
POINTS = Vec3.list([(0.0, 0.0), (5.0, 5.0), (10.0, 0.0)])
def test_default_constructor():
c = Bezier3P(POINTS)
assert c.control_points == Vec3.tuple(POINTS)
@pytest.fixture
def curve():
return Bezier3P(POINTS)
def test_point(curve):
assert curve.point(0.5) == (5.0, 2.5)
def test_tangent(curve):
assert curve.tangent(0.5) == (10.0, 0)
def test_approximate(curve):
points = curve.approximate(10)
assert len(points) == 11
def test_flattening(curve):
points = curve.flattening(0.01)
assert len(points) == 17
def test_approximated_length(curve):
assert curve.approximated_length(32) == pytest.approx(11.47678475868991)
def test_reverse(curve):
r = curve.reverse()
assert r.control_points == Vec3.tuple(reversed(POINTS))
def test_transform(curve):
m = Matrix44.translate(1, 1, 0)
r = curve.transform(m)
assert r.control_points == Vec3.tuple([(1, 1), (6, 6), (11, 1)])
if __name__ == "__main__":
pytest.main([__file__])
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