def test_r302(self):
s = Edge(R3(0.0, 0.0, -1.0), R3(1.0, 0.0, -1.0))
assert s.fin.approx(s.r3(1.0))
def test_r303(self):
s = Edge(R3(0.0, 0.0, -1.0), R3(1.0, 0.0, -1.0))
assert R3(0.5, 0.0, -1.0).approx(s.r3(0.5))
def test_r301(self):
s = Edge(R3(0.0, 0.0, -1.0), R3(1.0, 0.0, -1.0))
assert s.beg.approx(s.r3(0.0))