def test_multiplication(self):
"""
Multiplying one L{Quaternion} by another returns a new L{Quaternion}
giving the product of the two.
"""
a = Quaternion.fromAxisAngle(Vector3(1, 0, 0), pi / 4)
b = Quaternion.fromAxisAngle(Vector3(1, 0, 0), pi / 6)
c = a * b
axis = c.getAxis()
angle = c.getAngle()
self.assertEqual(axis.x, 1)
self.assertEqual(axis.y, 0)
self.assertEqual(axis.z, 0)
self.assertAlmostEqual(angle, pi / 4 + pi / 6, 6)
def test_multiplication(self):
"""
Multiplying one L{Quaternion} by another returns a new L{Quaternion}
giving the product of the two.
"""
a = Quaternion.fromAxisAngle(Vector3(1, 0, 0), pi / 4)
b = Quaternion.fromAxisAngle(Vector3(1, 0, 0), pi / 6)
c = a * b
axis = c.getAxis()
angle = c.getAngle()
self.assertEqual(axis.x, 1)
self.assertEqual(axis.y, 0)
self.assertEqual(axis.z, 0)
self.assertAlmostEqual(angle, pi / 4 + pi / 6, 6)
def test_fromAxisAngle(self):
"""
A L{Quaternion} can be constructed from a Vector3 giving an axis and a
scalar giving an angle from that axis.
"""
quat = Quaternion.fromAxisAngle(Vector3(0, 1, 0), 45)
self.assertTrue(isinstance(quat, Quaternion))
def test_fromAxisAngle(self):
"""
A L{Quaternion} can be constructed from a Vector3 giving an axis and a
scalar giving an angle from that axis.
"""
quat = Quaternion.fromAxisAngle(Vector3(0, 1, 0), 45)
self.assertTrue(isinstance(quat, Quaternion))
