test_physics.py 文件源码

def test_array_orientation_consistency_tilt():
    ''' The pupil array should be shaped as arr[x,y], as should the psf and MTF.
        A linear phase error in the pupil along y should cause a motion of the
        PSF in y.  Specifically, for a positive-signed phase, that should cause
        a shift in the +y direction.
    '''
    samples = 128
    p = Seidel(W111=1, samples=samples)
    ps = PSF.from_pupil(p, 1)
    idx_y, idx_x = np.unravel_index(ps.data.argmax(), ps.data.shape)  # row-major y, x
    assert idx_x == ps.center_x
    assert idx_y > ps.center_y