def test_reparam(self):
# identity mapping, control points generated from knot vector
basis1 = BSplineBasis(4, [2, 2, 2, 2, 3, 6, 7, 7, 7, 7])
basis2 = BSplineBasis(3, [-3, -3, -3, 20, 30, 31, 31, 31])
surf = Surface(basis1, basis2)
self.assertAlmostEqual(surf.start(0), 2)
self.assertAlmostEqual(surf.end(0), 7)
self.assertAlmostEqual(surf.start(1), -3)
self.assertAlmostEqual(surf.end(1), 31)
surf.reparam((4, 10), (0, 9))
self.assertAlmostEqual(surf.start(0), 4)
self.assertAlmostEqual(surf.end(0), 10)
self.assertAlmostEqual(surf.start(1), 0)
self.assertAlmostEqual(surf.end(1), 9)
surf.reparam((5, 11), direction=0)
self.assertAlmostEqual(surf.start(0), 5)
self.assertAlmostEqual(surf.end(0), 11)
self.assertAlmostEqual(surf.start(1), 0)
self.assertAlmostEqual(surf.end(1), 9)
surf.reparam((5, 11), direction='v')
self.assertAlmostEqual(surf.start(0), 5)
self.assertAlmostEqual(surf.end(0), 11)
self.assertAlmostEqual(surf.start(1), 5)
self.assertAlmostEqual(surf.end(1), 11)
surf.reparam((-9, 9))
self.assertAlmostEqual(surf.start(0), -9)
self.assertAlmostEqual(surf.end(0), 9)
self.assertAlmostEqual(surf.start(1), 0)
self.assertAlmostEqual(surf.end(1), 1)
surf.reparam()
self.assertAlmostEqual(surf.start(0), 0)
self.assertAlmostEqual(surf.end(0), 1)
self.assertAlmostEqual(surf.start(1), 0)
self.assertAlmostEqual(surf.end(1), 1)
surf.reparam((4, 10), (0, 9))
surf.reparam(direction=1)
self.assertAlmostEqual(surf.start(0), 4)
self.assertAlmostEqual(surf.end(0), 10)
self.assertAlmostEqual(surf.start(1), 0)
self.assertAlmostEqual(surf.end(1), 1)
