def test_intersect_05(self):
s = Edge(R3(0.0, 0.0, 1.0), R3(1.0, 0.0, -1.0))
a = R3(1.0, 1.0, 0.0)
n = R3(0.0, 0.0, 1.0)
assert s.intersect_edge_with_normal(a, n).approx(Segment(0.5, 1.0))
def test_intersect_03(self):
s = Edge(R3(0.0, 0.0, 0.0), R3(1.0, 0.0, 0.0))
a = R3(0.0, 0.0, 0.0)
n = R3(0.0, 0.0, 1.0)
assert s.intersect_edge_with_normal(a, n).is_degenerate()