def test_no_interaction(self):
np.random.seed(0)
mat = Dielectric.make_constant((400, 800), 1.0)
root = Node(name="Root", parent=None)
root.geometry = Sphere(radius=10.0, material=mat)
a = Node(name="A", parent=root)
a.geometry = Sphere(radius=1.0, material=mat)
ray = Ray(position=(-1.0, 0.0, 0.0), direction=(1.0, 0.0, 0.0), wavelength=555.0, is_alive=True)
volume = Volume(a, 2.0)
new_ray = volume.trace(ray)
expected = replace(ray, position=(1.0, 0.0, 0.0))
assert new_ray == expected
def test_zero_reflection(self):
np.random.seed(0)
mat1 = Dielectric.make_constant((400, 800), 1.0)
mat2 = Dielectric.make_constant((400, 800), 1.0)
root = Node(name="Root", parent=None)
root.geometry = Sphere(radius=10.0, material=mat1)
a = Node(name="A", parent=root)
a.geometry = Sphere(radius=1.0, material=mat2)
ray = Ray(position=(-1.0, 0.0, 0.0), direction=(0.0, 0.0, 1.0), wavelength=555.0, is_alive=True)
from_node = root
to_node = a
interface = DielectricInterface(from_node, to_node)
new_ray = interface.trace(ray)
expected = ray # unchanged
assert new_ray == expected
def test_is_entering_false(self):
a = Node(name="A", parent=None)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
surface_point = (-1.0, 0.0, 0.0)
entering_direction = (-1.0, 0.0, 0.0)
assert b.geometry.is_entering(surface_point, entering_direction) == False
def test_is_entering_false(self):
a = Node(name="A", parent=None)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
surface_point = (-1.0, 0.0, 0.0)
entering_direction = (-1.0, 0.0, 0.0)
assert b.geometry.is_entering(surface_point,
entering_direction) == False
def test_intersections(self):
a = Node(name="A", parent=None)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
loc = (-1.0, 0.0, 0.0)
vec = (1.0, 0.0, 0.0)
intersections = b.intersections(loc, vec)
points = np.array([x.point for x in intersections])
assert np.allclose(points, ((-1.0, 0.0, 0.0), (1.0, 0.0, 0.0)))
def test_intersections(self):
a = Node(name="A", parent=None)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
loc = (-1.0, 0.0, 0.0)
vec = (1.0, 0.0, 0.0)
intersections = b.intersections(loc, vec)
points = np.array([x.point for x in intersections])
assert np.allclose(points, ((-1.0, 0.0, 0.0), (1.0, 0.0, 0.0)))
def test_basic_scene(self):
a = Node(name="A", parent=None)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
b.translate((2.0, 0.0, 0.0))
s = Scene(root=a)
r = MeshcatRenderer()
r.render(s)
time.sleep(0.5)
r.remove(s)
def test_basic_scene(self):
a = Node(name="A", parent=None)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
b.translate((2.0, 0.0, 0.0))
s = Scene(root=a)
r = MeshcatRenderer(zmq_url='tcp://127.0.0.1:6000')
r.render(s)
time.sleep(0.5)
r.remove(s)
def test_ray_reflecting_interaction(self):
# low > very high refractive index
np.random.seed(2)
mat1 = Dielectric.make_constant((400, 800), 1.0)
mat2 = Dielectric.make_constant((400, 800), 6.0)
root = Node(name="Root", parent=None)
root.geometry = Sphere(radius=10.0, material=mat1)
a = Node(name="A", parent=root)
a.geometry = Sphere(radius=1.0, material=mat2)
ray = Ray(position=(-1.0, 0.0, 0.0), direction=norm((-0.2, 0.2, 1.0)), wavelength=555.0, is_alive=True)
from_node = root
to_node = a
interface = DielectricInterface(from_node, to_node)
new_ray = interface.trace(ray)
assert np.sign(ray.direction[0]) != np.sign(new_ray.direction[0]) # Reflected
# Direction should be different after refracting interface
assert all([not np.allclose(new_ray.direction, ray.direction),
np.allclose(new_ray.position, ray.position),
new_ray.wavelength == ray.wavelength,
new_ray.is_alive == ray.is_alive])
def test_intersection_when_on_surface(self):
""" Make sure we return intersection points even with zero distance from ray.
"""
a = Node(name="A", parent=None)
a.geometry = Sphere(radius=1.0)
loc = (-1.0, 0.0, 0.0)
vec = (1.0, 0.0, 0.0)
intersections = a.intersections(loc, vec)
points = np.array([x.point for x in intersections])
expected = np.array([(-1.0, 0.0, 0.0), (1.0, 0.0, 0.0)])
assert np.allclose(points, expected)
def test_intersection_when_on_surface(self):
""" Make sure we return intersection points even with zero distance from ray.
"""
a = Node(name="A", parent=None)
a.geometry = Sphere(radius=1.0)
loc = (-1.0, 0.0, 0.0)
vec = (1.0, 0.0, 0.0)
intersections = a.intersections(loc, vec)
points = np.array([x.point for x in intersections])
expected = np.array([(-1.0, 0.0, 0.0), (1.0, 0.0, 0.0)])
assert np.allclose(points, expected)
def test_intersection(self):
root = Node(name='Root')
a = Node(name="A", parent=root)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
a.translate((1.0, 0.0, 0.0))
loc = (-2.0, 0.0, 0.0)
vec = (1.0, 0.0, 0.0)
scene = Scene(root=root)
intersections = scene.intersections(loc, vec)
points = tuple([x.point for x in intersections])
# In frame of a everything is shifed 1 along x
assert points == ((0.0, 0.0, 0.0), (2.0, 0.0, 0.0))
def test_intersection(self):
root = Node(name='Root')
a = Node(name="A", parent=root)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
a.translate((1.0, 0.0, 0.0))
loc = (-2.0, 0.0, 0.0)
vec = (1.0, 0.0, 0.0)
scene = Scene(root=root)
intersections = scene.intersections(loc, vec)
points = tuple([x.point for x in intersections])
# In frame of a everything is shifed 1 along x
assert points == ((0.0, 0.0, 0.0), (2.0, 0.0, 0.0))
def test_intersection_with_rotation_around_z(self):
root = Node(name='Root')
a = Node(name="A", parent=root)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
a.translate((1.0, 0.0, 0.0))
# This rotation make an z translation in b becomes a -y translation in a
a.rotate(np.pi / 2, axis=(0.0, 0.0, 1.0))
loc = (-2.0, 0.0, 0.0)
vec = (1.0, 0.0, 0.0)
scene = Scene(root=root)
intersections = scene.intersections(loc, vec)
points = tuple([x.point for x in intersections])
assert np.allclose(points, ((0.0, 0.0, 0.0), (2.0, 0.0, 0.0)))
def test_intersection_with_rotation_around_x(self):
root = Node(name='Root')
a = Node(name="A", parent=root)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
b.translate((1.0, 0.0, 0.0))
# Rotation around x therefore no displace in x
b.rotate(np.pi / 2, (1.0, 0.0, 0.0))
loc = (-2.0, 0.0, 0.0)
vec = (1.0, 0.0, 0.0)
scene = Scene(root=root)
intersections = scene.intersections(loc, vec)
points = tuple([x.point for x in intersections])
assert points == ((0.0, 0.0, 0.0), (2.0, 0.0, 0.0))
def test_intersection_with_rotation_around_x(self):
root = Node(name='Root')
a = Node(name="A", parent=root)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
b.translate((1.0, 0.0, 0.0))
# Rotation around x therefore no displace in x
b.rotate(np.pi/2, (1.0, 0.0, 0.0))
loc = (-2.0, 0.0, 0.0)
vec = (1.0, 0.0, 0.0)
scene = Scene(root=root)
intersections = scene.intersections(loc, vec)
points = tuple([x.point for x in intersections])
assert points == ((0.0, 0.0, 0.0), (2.0, 0.0, 0.0))
def test_intersection_with_rotation_around_z(self):
root = Node(name='Root')
a = Node(name="A", parent=root)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
a.translate((1.0, 0.0, 0.0))
# This rotation make an z translation in b becomes a -y translation in a
a.rotate(np.pi/2, axis=(0.0, 0.0, 1.0))
loc = (-2.0, 0.0, 0.0)
vec = (1.0, 0.0, 0.0)
scene = Scene(root=root)
intersections = scene.intersections(loc, vec)
points = tuple([x.point for x in intersections])
assert np.allclose(points, ((0.0, 0.0, 0.0), (2.0, 0.0, 0.0)))
def test_intersection_with_translation(self):
a = Node(name="A", parent=None)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
b.translate((1.0, 0.0, 0.0))
aloc = (-2.0, 0.0, 0.0)
avec = (1.0, 0.0, 0.0)
bloc = b.point_to_node(aloc, b)
bvec = b.vector_to_node(avec, b)
intersections = b.intersections(bloc, bvec)
points = tuple(x.point for x in intersections)
assert np.allclose(points, ((-1.0, 0.0, 0.0), (1.0, 0.0, 0.0)))
# In local frame of b sphere is at origin
intersections = a.intersections(aloc, avec)
points = np.array(tuple(x.to(a).point for x in intersections))
expected = np.array(((0.0, 0.0, 0.0), (2.0, 0.0, 0.0)))
# In frame of a everything is shifed 1 along x
assert np.allclose(points, expected)
def test_intersection_with_translation(self):
a = Node(name="A", parent=None)
b = Node(name="B", parent=a)
b.geometry = Sphere(radius=1.0)
b.translate((1.0, 0.0, 0.0))
aloc = (-2.0, 0.0, 0.0)
avec = (1.0, 0.0, 0.0)
bloc = b.point_to_node(aloc, b)
bvec = b.vector_to_node(avec, b)
intersections = b.intersections(bloc, bvec)
points = tuple(x.point for x in intersections)
assert np.allclose(points, ((-1.0, 0.0, 0.0), (1.0, 0.0, 0.0)))
# In local frame of b sphere is at origin
intersections = a.intersections(aloc, avec)
points = np.array(tuple(x.to(a).point for x in intersections))
expected = np.array(((0.0, 0.0, 0.0), (2.0, 0.0, 0.0)))
# In frame of a everything is shifed 1 along x
assert np.allclose(points, expected)
import logging
# We want to see pvtrace logging here
#logging.getLogger('pvtrace').setLevel(logging.CRITICAL)
logging.getLogger('trimesh').setLevel(logging.CRITICAL)
logging.getLogger('matplotlib').setLevel(logging.CRITICAL)
wavelength_range = (200, 800)
wavelength = np.linspace(*wavelength_range, 1000)
lumogen = Lumophore.make_lumogen_f_red(wavelength, 1000, 1.0)
linear_background = Lumophore.make_linear_background(wavelength, 1.0)
# Make a world coordinate system
world_node = Node(name='world')
world_node.geometry = Sphere(
radius=10.0,
material=Dielectric.make_constant((300, 1000.0), 1.0)
)
refractive_index = np.column_stack(
(wavelength, np.ones(wavelength.shape) * 1.5)
)
# Add LSC
size = (1.0, 1.0, 0.02)
lsc = Node(name="LSC", parent=world_node)
lsc.geometry = Box(
size,
material=Host(
refractive_index, # LSC refractive index
[linear_background, lumogen] # LSC list of lumophore materials
)
)
