def test_from_crossratio(self):
a = Point(0, 1)
b = Point(0, -1)
c = Point(1.5, 0.5)
d = Point(1.5, -0.5)
e = Point(-1.5, 0.5)
conic1 = Conic.from_points(a, b, c, d, e)
cr = crossratio(a, b, c, d, e)
conic2 = Conic.from_crossratio(cr, a, b, c, d)
assert conic1 == conic2
def test_from_points(self):
a = Point(0, 1)
b = Point(0, -1)
c = Point(1.5, 0.5)
d = Point(1.5, -0.5)
e = Point(-1.5, 0.5)
conic = Conic.from_points(a, b, c, d, e)
assert conic.contains(a)
assert conic.contains(b)
assert conic.contains(c)
assert conic.contains(d)
assert conic.contains(e)
def test_from_points(self):
a = Point(-1, 0)
b = Point(0, 3)
c = Point(1, 2)
d = Point(2, 1)
e = Point(0, -1)
conic = Conic.from_points(a, b, c, d, e)
assert conic.contains(a)
assert conic.contains(b)
assert conic.contains(c)
assert conic.contains(d)
assert conic.contains(e)