def tpsf_mutate():
x = y = np.linspace(-LIM, LIM, SAMPLES)
xx, yy = np.meshgrid(x, y)
rho, phi = cart_to_polar(xx, yy)
dat = psf.airydisk(rho, 10, 0.55)
_psf = psf.PSF(data=dat, x=x, y=y)
_psf.fno = 10
_psf.wavelength = 0.55
return _psf
def test_diffprop_matches_airydisk(efl, epd, wvl):
fno = efl / epd
p = Pupil(wavelength=wvl, epd=epd)
psf = PSF.from_pupil(p, efl)
u, sx = psf.slice_x
u, sy = psf.slice_y
analytic = airydisk(u, fno, wvl)
assert np.allclose(sx, analytic, rtol=PRECISION, atol=PRECISION)
assert np.allclose(sy, analytic, rtol=PRECISION, atol=PRECISION)
def test_diffprop_matches_airydisk(efl, epd, wvl):
fno = efl / epd
p = Pupil(wavelength=wvl, dia=epd)
psf = PSF.from_pupil(p, efl, Q=3) # use Q=3 not Q=4 for improved accuracy
u, sx = psf.slice_x
u, sy = psf.slice_y
analytic = airydisk(u, fno, wvl)
assert np.allclose(sx, analytic, atol=PRECISION)
assert np.allclose(sy, analytic, atol=PRECISION)
def test_diffprop_matches_airydisk(efl, epd, wvl):
fno = efl / epd
p = Pupil(dia=epd, xy_unit=u.mm, z_unit=u.nm, wavelength=mkwvl(wvl, u.um))
psf = PSF.from_pupil(p, efl, Q=3) # use Q=3 not Q=4 for improved accuracy
s = psf.slices()
u_, sx = s.x
u_, sy = s.y
analytic = airydisk(u_, fno, wvl)
assert np.allclose(sx, analytic, atol=PRECISION)
assert np.allclose(sy, analytic, atol=PRECISION)
def test_diffprop_matches_airydisk(efl, epd, wvl):
fno = efl / epd
x, y = make_xy_grid(128, diameter=epd)
r, t = cart_to_polar(x, y)
amp = circle(epd/2, r)
wf = Wavefront.from_amp_and_phase(amp/amp.sum(), None, wvl, x[0, 1] - x[0, 0])
psf = wf.focus(efl, Q=3)
s = psf.intensity.slices()
u_, sx = s.x
u_, sy = s.y
analytic = airydisk(u_, fno, wvl)
assert np.allclose(sx, analytic, atol=PRECISION)
assert np.allclose(sy, analytic, atol=PRECISION)
def tpsf():
x = y = np.linspace(-LIM, LIM, SAMPLES)
xx, yy = np.meshgrid(x, y)
rho, phi = cart_to_polar(xx, yy)
dat = psf.airydisk(rho, 10, 0.55)
return psf.PSF(data=dat, x=x, y=y)
def test_airydisk_has_unit_peak(fno, wvl):
assert airydisk(0, fno=fno, wavelength=wvl) == 1
