def test_transpose(self):
y = np.array([[1, 2, 3, 4]])
self.assertEqual(y.shape, (1, 4))
y = transpose(y)
npt.assert_equal(y, np.array([[1], [2], [3], [4]]))
y = transpose(y)
npt.assert_equal(y, np.array([[1, 2, 3, 4]]))
def hermite(x0, x1, v0, v1, t):
a = array([1, t, t**2, t**3])
M = array([[1, 0, 0, 0],
[1, 1, 1, 1],
[0, 1, 0, 0],
[0, 1, 2, 3]])
p = transpose([[x0, x1, v0, v1]])
return dot(dot(a, inverse(M)), p)
def bezier2(x0, p1, p2, x1, t):
a = array([1, t, t**2, t**3])
M = array([[1, 0, 0, 0],
[1, 1, 1, 1],
[0, 1, 0, 0],
[0, 1, 2, 3]])
B = array([[1, 0, 0, 0],
[0, 0, 0, 1],
[-3, 3, 0, 0],
[0, 0, -3, 3]])
p = transpose([[x0, p1, p2, x1]])
C = dot(inverse(M), B)
return dot(dot(a, C), p)
