def test_vertical02(self):
f = Facet([R3(0.0, 0.0, 0.0), R3(0.0, 0.0, 1.0), R3(1.0, 0.0, 0.0)])
assert f.is_vertical()
def test_vertical01(self):
f = Facet([R3(0.0, 0.0, 0.0), R3(3.0, 0.0, 0.0), R3(0.0, 3.0, 0.0)])
assert not f.is_vertical()