def __init__(self, refractive_index: np.ndarray,
absorption_coefficient: np.ndarray):
super(LossyDielectric, self).__init__(absorption_coefficient,
refractive_index)
self._transit_mechanism = FresnelRefraction()
self._return_mechanism = FresnelReflection()
self._path_mechanism = Absorption()
self._emit_mechanism = None
def __init__(self, refractive_index: np.ndarray, lumophores: [Lumophore]):
super(Host, self).__init__(
refractive_index=refractive_index,
lumophores=lumophores
)
self._transit_mechanism = FresnelRefraction()
self._return_mechanism = FresnelReflection()
self._path_mechanism = Absorption()
self._emit_mechanism = Emission()
def test_normal_reflection(self):
n1 = 1.0
n2 = 1.5
normal = (0.0, 0.0, 1.0)
angle = 0.0
ray = Ray(position=(0.0, 0.0, 0.0),
direction=(0.0, 0.0, 1.0),
wavelength=None)
fresnel = FresnelReflection()
assert np.isclose(fresnel.reflectivity(angle, n1, n2), 0.04)
new_ray = fresnel.transform(ray, {"normal": normal})
assert np.allclose(flip(ray.direction), new_ray.direction)
def test_antinormal_reflection(self):
""" FresnelReflection takes the smallest angle between the ray direction and
the normal. Thus the flipped normal will also work.
"""
n1 = 1.0
n2 = 1.5
normal = (0.0, 0.0, -1.0)
angle = 0.0
ray = Ray(position=(0.0, 0.0, 0.0),
direction=(0.0, 0.0, 1.0),
wavelength=None)
fresnel = FresnelReflection()
assert np.isclose(fresnel.reflectivity(angle, n1, n2), 0.04)
new_ray = fresnel.transform(ray, {"normal": normal})
assert np.allclose(flip(ray.direction), new_ray.direction)
def __init__(self, refractive_index):
super(Dielectric, self).__init__(refractive_index)
self._transit_mechanism = FresnelRefraction()
self._return_mechanism = FresnelReflection()
self._path_mechanism = TravelPath()
self._emit_mechanism = None
def test_init(self):
assert type(FresnelReflection()) == FresnelReflection