def test_center_and_dimensions(self):
e = Ellipse(UnitVector3d.X(), UnitVector3d.Y(), Angle(2 * math.pi / 3))
self.assertAlmostEqual(e.getF1().dot(UnitVector3d.X()), 1.0)
self.assertAlmostEqual(e.getF2().dot(UnitVector3d.Y()), 1.0)
self.assertAlmostEqual(e.getAlpha(), Angle(2 * math.pi / 3))
f = Ellipse(UnitVector3d.X(), Angle(math.pi / 3), Angle(math.pi / 6),
Angle(0))
self.assertEqual(f.getCenter(), UnitVector3d.X())
def test_construction(self):
self.assertTrue(Ellipse.empty().isEmpty())
self.assertTrue(Ellipse().isEmpty())
self.assertTrue(Ellipse.full().isFull())
e = Ellipse(Circle(UnitVector3d.X(), Angle(math.pi / 2)))
f = Ellipse(UnitVector3d.X(), Angle(math.pi / 2))
self.assertEqual(e, f)
self.assertEqual(e.getAlpha(), e.getBeta())
self.assertTrue(e.isCircle())
self.assertTrue(e.isGreatCircle())
g = Ellipse(e)
h = e.clone()
self.assertEqual(e, g)
self.assertEqual(g, h)
self.assertNotEqual(id(e), id(g))
self.assertNotEqual(id(g), id(h))