def test_copy(self):
t1 = AffineTransform()
t1.scale(2, 3)
t1.rotate(3)
t2 = copy.copy(t1)
self.assertEqual(t1.m, t2.m)
self.assertEqual(t1, t2)
def test_invert(self):
t = AffineTransform()
t.rotate(-math.pi / 2.0)
t.scale(4.0, 3.0)
t.translate(100, 100)
p = t.transformPoint(0, 0)
t.invert()
p = t.transformPoint(p[0], p[1])
for i in range(0, len(p)):
self.assertAlmostEqual(p[i], 0)
def test_equality(self):
t1 = AffineTransform()
t1.scale(2, 3)
t1.rotate(3)
t2 = AffineTransform()
t2.scale(2, 3)
t2.rotate(3)
self.assertTrue(t1 == t2)
t3 = AffineTransform()
t3.scale(4, 5)
self.assertFalse(t2 == t3)
self.assertFalse(t3 == None)
def test_multiply(self):
t1 = AffineTransform()
t1.rotate(math.pi / 2.0)
t2 = AffineTransform()
t2.translate(2, 4)
t3 = AffineTransform()
t3.scale(3, 5)
p = (20, 20)
p1 = (p[0], p[1])
p1 = t1.transformPoint(p1[0], p1[1])
p1 = t2.transformPoint(p1[0], p1[1])
p1 = t3.transformPoint(p1[0], p1[1])
t4 = AffineTransform()
t4.multiply(t1)
t4.multiply(t2)
t4.multiply(t3)
p2 = t4.transformPoint(p[0], p[1])
for i in range(0, len(p1)):
self.assertAlmostEqual(p1[i], p2[i])
def test_rotate(self):
t = AffineTransform()
t.rotate(-math.pi / 2.0)
s = t.transformSize(0.0, 2.0)
self.assertAlmostEqual(round(s[0]), 2.0)
self.assertAlmostEqual(round(s[1]), 0.0)
