def test_shearing_yz(self):
transform = shearing(yz=1)
p = point(2, 3, 4)
p_out = point(2, 7, 4)
self.assertEqual(transform * p, p_out,
'Shearing in yz direction failed')
def test_shearing_zy(self):
transform = shearing(zy=1)
p = point(2, 3, 4)
p_out = point(2, 3, 7)
self.assertEqual(transform * p, p_out,
'Shearing in zy direction failed')
def test_shearing_xy(self):
transform = shearing(xy=1)
p = point(2, 3, 4)
p_out = point(5, 3, 4)
self.assertEqual(transform * p, p_out,
'shearing in xy direction failed')