def test_ConcavePolygonThatIsNotSplit_ReturnCorrectPolygons(self):
polygon = SimplePolygon(vertices=array([(0, 0, 0), (1, 0,
0), (1, 1,
0), (0, 1,
0)]))
plane = Plane(point_in_plane=array([2, 0, 0]),
normal_vector=array([1, 0, 0]))
actual = split_by_plane(object_to_split=polygon, plane=plane)
expected = [
SimplePolygon(vertices=array([(0, 0, 0), (1, 0, 0), (1, 1,
0), (0, 1,
0)]))
]
assert actual == expected
def test_ComplexPolygon_ReturnCorrectPolygons_1(self):
polygon = SimplePolygon(
vertices=array([(0, 0, 0), (4, 0, 0), (2, 2, 0), (4, 4,
0), (0, 4, 0)]))
plane = Plane(point_in_plane=array([2, 0, 0]),
normal_vector=array([1, 0, 0]))
actual = split_by_plane(object_to_split=polygon, plane=plane)
expected = [
SimplePolygon(vertices=array([(2, 4, 0), (0, 4, 0), (0, 0,
0), (2, 0,
0)])),
SimplePolygon(vertices=array([(2, 0, 0), (4, 0, 0), (2, 2, 0)])),
SimplePolygon(vertices=array([(2, 2, 0), (4, 4, 0), (2, 4, 0)]))
]
assert actual == expected
def test_SimplePolygonWithSegmentOnPlane_ReturnCorrectPolygon(
self, point_in_plane, normal_vector):
polygon = SimplePolygon(vertices=array([(0, 0, 0), (1, 0,
0), (1, 1,
0), (0, 1,
0)]))
plane = Plane(point_in_plane=point_in_plane,
normal_vector=normal_vector)
actual = split_by_plane(object_to_split=polygon, plane=plane)
expected = [
SimplePolygon(vertices=array([(0, 0, 0), (1, 0, 0), (1, 1,
0), (0, 1,
0)]))
]
assert actual == expected
def test_FourthQuadrantLShapedPolygonWithShortEdgeOnPlane_ReturnCorrectPolygons(
self, normal_vector):
polygon = SimplePolygon(
vertices=array([(-1, -1,
0), (0, -1, 0), (0, 0, 0), (1, 0,
0), (1, 1,
0), (-1, 1, 0)]))
plane = Plane(point_in_plane=array([0, 0, 0]),
normal_vector=normal_vector)
actual = split_by_plane(object_to_split=polygon, plane=plane)
expected = [
SimplePolygon(vertices=array([(-1, -1,
0), (0, -1, 0), (0, 0, 0), (-1, 0,
0)])),
SimplePolygon(vertices=array([(1, 0, 0), (1, 1, 0), (-1, 1,
0), (-1, 0,
0)]))
]
assert actual == expected