def test_horizontal_light():
pts1 = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
triangles = [pts1]
mats = [green_leaf_PAR]
# horizontal light no intensity
lights = [(0, (-1, 0, 0))]
res = raycasting(triangles, mats, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei'][0], 0, 0)
# horizontal light full intensity
lights = [(100, (-1, 0, 0))]
res = raycasting(triangles, mats, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei'][0], 0, 0)
# horizontal light full intensity, infinite canopy
lights = [(100, (-1, 0, 0))]
domain = (-2, -2, 2, 2)
res = raycasting(triangles, mats, lights, domain)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei'][0], 0, 0)
# horizontal light full intensity, vertical triangle (impossible case)
pts1 = [(0, 0, 0), (0, sqrt(2), 0), (0, 0, sqrt(2))]
triangles = [pts1]
lights = [(100, (-1, 0, 0))]
res = raycasting(triangles, mats, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei'][0], 0, 0)
def test_vertical_light():
pts1 = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
triangles = [pts1]
mats = [green_leaf_PAR]
# vertical light no intensity
lights = [(0, (0, 0, -1))]
res = raycasting(triangles, mats, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei'][0], 0, 0)
# vertical light full intensity
lights = [(100, (0, 0, -1))]
res = raycasting(triangles, mats, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei'][0], 100, 0)
# vertical light full intensity, vertical triangle
pts1 = [(0, 0, 0), (0, sqrt(2), 0), (0, 0, sqrt(2))]
triangles = [pts1]
lights = [(100, (-1, 0, 0))]
res = raycasting(triangles, mats, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei'][0], 0, 0)
def test_raycasting_closed_box():
pts1 = [(0, 0, 0), (1, 0, 0), (0, 0, 1)]
pts2 = [(0, 0, 0), (0, 0, 1), (0, 1, 0)]
pts3 = [(0, 0, 0), (0, 1, 0), (1, 0, 0)]
pts4 = [(1, 0, 0), (0, 1, 0), (0, 0, 1)]
triangles = [pts1, pts2, pts3, pts4]
lights = [(100, (0, 0, -1))]
# no transmittance
materials = [(0.1, 0.)] * len(triangles)
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 0.5, 3)
assert_almost_equal(res['Ei_sup'][0], 0, 3)
assert_almost_equal(res['Ei_inf'][0], 0, 3)
assert_almost_equal(res['Eabs'][0], 0, 3)
assert_almost_equal(res['area'][1], 0.5, 3)
assert_almost_equal(res['Ei_sup'][1], 0, 3)
assert_almost_equal(res['Ei_inf'][1], 0, 3)
assert_almost_equal(res['Eabs'][1], 0, 3)
assert_almost_equal(res['area'][2], 0.5, 3)
assert_almost_equal(res['Ei_sup'][2], 0, 3)
assert_almost_equal(res['Ei_inf'][2], 0, 0)
assert_almost_equal(res['Eabs'][2], 0, 0)
assert_almost_equal(res['area'][3], 0.866, 3) # TODO
assert_almost_equal(res['Ei_sup'][3], 57.6, 0)
assert_almost_equal(res['Ei_inf'][3], 0, 3)
assert_almost_equal(res['Eabs'][3], 57.6 * 0.9, 0)
def test_raycasting_closed_box():
pts1 = [(0, 0, 0), (1, 0, 0), (0, 0, 1)]
pts2 = [(0, 0, 0), (0, 0, 1), (0, 1, 0)]
pts3 = [(0, 0, 0), (0, 1, 0), (1, 0, 0)]
pts4 = [(1, 0, 0), (0, 1, 0), (0, 0, 1)]
triangles = [pts1, pts2, pts3, pts4]
lights = [(100, (0, 0, -1))]
# no transmittance
materials = [(0.1, 0.)] * len(triangles)
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 0.5, 3)
assert_almost_equal(res['Ei_sup'][0], 0, 3)
assert_almost_equal(res['Ei_inf'][0], 0, 3)
assert_almost_equal(res['Eabs'][0], 0, 3)
assert_almost_equal(res['area'][1], 0.5, 3)
assert_almost_equal(res['Ei_sup'][1], 0, 3)
assert_almost_equal(res['Ei_inf'][1], 0, 3)
assert_almost_equal(res['Eabs'][1], 0, 3)
assert_almost_equal(res['area'][2], 0.5, 3)
assert_almost_equal(res['Ei_sup'][2], 0, 3)
assert_almost_equal(res['Ei_inf'][2], 0, 0)
assert_almost_equal(res['Eabs'][2], 0, 0)
assert_almost_equal(res['area'][3], 0.866, 3) # TODO
assert_almost_equal(res['Ei_sup'][3], 57.6, 0)
assert_almost_equal(res['Ei_inf'][3], 0, 3)
assert_almost_equal(res['Eabs'][3], 57.6 * 0.9, 0)
def test_raycasting_opaque_box():
# need a closed box
pts1 = [(0, 0, 0), (1, 0, 0), (0, 0, 1)]
pts2 = [(0, 0, 0), (0, 0, 1), (0, 1, 0)]
pts3 = [(0, 0, 0), (0, 1, 0), (1, 0, 0)]
pts4 = [(1, 0, 0), (0, 1, 0), (0, 0, 1)]
triangles = [pts1, pts2, pts3, pts4]
lights = [(100, (0, 0, -1))]
materials = [(0.1,)] * len(triangles)
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 0.5, 3)
# assert_almost_equal(res['Ei_sup'][0], 0, 3)
# assert_almost_equal(res['Ei_inf'][0], 0, 3)
assert_almost_equal(res['Eabs'][0], 0, 3)
assert_almost_equal(res['area'][1], 0.5, 3)
# assert_almost_equal(res['Ei_sup'][1], 0, 3)
# assert_almost_equal(res['Ei_inf'][1], 0, 3)
assert_almost_equal(res['Eabs'][1], 0, 3)
assert_almost_equal(res['area'][2], 0.5, 3)
# assert_almost_equal(res['Ei_sup'][2], 0, 3)
# assert_almost_equal(res['Ei_inf'][2], 0, 0)
assert_almost_equal(res['Eabs'][2], 0, 0)
assert_almost_equal(res['area'][3], 0.866, 3) # TODO
# assert_almost_equal(res['Ei_sup'][3], 57.6, 0)
# assert_almost_equal(res['Ei_inf'][3], 0, 3)
assert_almost_equal(res['Eabs'][3], 57.6 * 0.9, 0)
def test_raycasting_opaque_box():
# need a closed box
pts1 = [(0, 0, 0), (1, 0, 0), (0, 0, 1)]
pts2 = [(0, 0, 0), (0, 0, 1), (0, 1, 0)]
pts3 = [(0, 0, 0), (0, 1, 0), (1, 0, 0)]
pts4 = [(1, 0, 0), (0, 1, 0), (0, 0, 1)]
triangles = [pts1, pts2, pts3, pts4]
lights = [(100, (0, 0, -1))]
materials = [(0.1, )] * len(triangles)
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 0.5, 3)
# assert_almost_equal(res['Ei_sup'][0], 0, 3)
# assert_almost_equal(res['Ei_inf'][0], 0, 3)
assert_almost_equal(res['Eabs'][0], 0, 3)
assert_almost_equal(res['area'][1], 0.5, 3)
# assert_almost_equal(res['Ei_sup'][1], 0, 3)
# assert_almost_equal(res['Ei_inf'][1], 0, 3)
assert_almost_equal(res['Eabs'][1], 0, 3)
assert_almost_equal(res['area'][2], 0.5, 3)
# assert_almost_equal(res['Ei_sup'][2], 0, 3)
# assert_almost_equal(res['Ei_inf'][2], 0, 0)
assert_almost_equal(res['Eabs'][2], 0, 0)
assert_almost_equal(res['area'][3], 0.866, 3) # TODO
# assert_almost_equal(res['Ei_sup'][3], 57.6, 0)
# assert_almost_equal(res['Ei_inf'][3], 0, 3)
assert_almost_equal(res['Eabs'][3], 57.6 * 0.9, 0)
def test_raycasting_exception():
points = [(0, 0, 0), (1, 0, 0), (0, 1, 0)]
triangles = [points]
# black body
materials = [(0,)]
assert_raises(ValueError, lambda: raycasting(triangles, materials))
materials = [(0.,)]
assert_raises(ValueError, lambda: raycasting(triangles, materials))
materials = [(0., 0)]
assert_raises(ValueError, lambda: raycasting(triangles, materials))
materials = [(0., 0, 0, 0.)]
assert_raises(ValueError, lambda: raycasting(triangles, materials))
# unmatch
materials = [(0.1,)] * 2
assert_raises(ValueError, lambda: raycasting(triangles, materials))
def test_other_algos():
pts1 = [(0, 0, 0), (1, 0, 0), (0, 1, 0)]
pts2 = [(0, 0, 1), (1, 0, 1), (0, 1, 1)]
triangles = [pts1, pts2]
domain = (0, 0, 1, 1)
height = 1
mats = [green_leaf_PAR] * 2
x_mats = {'PAR': mats, 'NIR': mats}
sensors = [[(0, 0, 2), (1, 0, 2), (0, 1, 2)],
[(0, 0, 2), (1, 0, 2), (1, 0, 3)]]
lights = [(1, (0, 0, -1))]
res = raycasting(triangles, mats, sensors=sensors, debug=DEBUG)
assert 'sensors' in res
assert 'Ei' in res['sensors']
res = x_raycasting(triangles, x_mats, sensors=sensors, debug=DEBUG)
assert 'PAR' in res
assert 'NIR' in res
assert 'sensors' in res['PAR']
assert 'Ei' in res['PAR']['sensors']
res = radiosity(triangles, mats, sensors=sensors, debug=DEBUG)
assert 'sensors' in res
assert 'Ei' in res['sensors']
res = x_radiosity(triangles, x_mats, sensors=sensors, debug=DEBUG)
assert 'PAR' in res
assert 'NIR' in res
assert 'sensors' in res['PAR']
assert 'Ei' in res['PAR']['sensors']
res = mixed_radiosity(triangles,
mats,
lights=lights,
domain=domain,
soil_reflectance=0.3,
diameter=1,
layers=2,
height=height,
debug=DEBUG)
assert 'Eabs' in res
res = x_mixed_radiosity(triangles,
x_mats,
lights=lights,
domain=domain,
soil_reflectance={
'PAR': 0.3,
'NIR': 0.1
},
diameter=1,
layers=2,
height=height,
debug=DEBUG)
assert 'PAR' in res
assert 'NIR' in res
assert 'Eabs' in res['PAR']
def test_default_light_in_raycasting():
pts1 = [(0, 0, 0), (1, 0, 0), (0, 1, 0)]
triangles = [pts1]
mats = [green_leaf_PAR]
# default light
res = raycasting(triangles, mats, debug=DEBUG)
assert 'area' in res
def test_default_light_in_raycasting():
pts1 = [(0, 0, 0), (1, 0, 0), (0, 1, 0)]
triangles = [pts1]
mats = [green_leaf_PAR]
# default light
res = raycasting(triangles, mats)
assert 'area' in res
def test_raycasting_translucent():
points = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
triangles = [points]
lights = [(100, (0, 0, -1))]
# full reflectance, mirror
materials = [(1., 0.)]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 0, 3)
assert_almost_equal(res['Eabs'][0], 0, 3)
# semi reflectance
materials = [(0.5, 0.)]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 0, 3)
assert_almost_equal(res['Eabs'][0], 50, 0)
def test_raycasting_asymmetric_material():
points = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
triangles = [points]
lights = [(100, (0, 0, -1))]
materials = [(0.1, 0., 0.2, 0.)]
# top
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 0, 0)
assert_almost_equal(res['Eabs'][0], 90, 0)
# bottom
triangles = [reversed(points)]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei_sup'][0], 0, 0)
assert_almost_equal(res['Ei_inf'][0], 100, 0)
assert_almost_equal(res['Eabs'][0], 80, 0)
def test_raycasting_asymmetric_material():
points = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
triangles = [points]
lights = [(100, (0, 0, -1))]
materials = [(0.1, 0., 0.2, 0.)]
# top
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 0, 0)
assert_almost_equal(res['Eabs'][0], 90, 0)
# bottom
triangles = [reversed(points)]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei_sup'][0], 0, 0)
assert_almost_equal(res['Ei_inf'][0], 100, 0)
assert_almost_equal(res['Eabs'][0], 80, 0)
def test_raycasting_single_triangle():
points = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
triangles = [points]
materials = [(0.06, 0.04)]
# vertical light
lights = [(100, (0, 0, -1))]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Eabs'][0], 90, 0)
assert_almost_equal(res['Ei'][0], 100, 0)
def test_raycasting_single_triangle():
points = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
triangles = [points]
materials = [(0.06, 0.04)]
# vertical light
lights = [(100, (0, 0, -1))]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Eabs'][0], 90, 0)
assert_almost_equal(res['Ei'][0], 100, 0)
def test_raycasting_translucent():
points = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
triangles = [points]
lights = [(100, (0, 0, -1))]
# full reflectance, mirror
materials = [(1., 0.)]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 0, 3)
assert_almost_equal(res['Eabs'][0], 0, 3)
# semi reflectance
materials = [(0.5, 0.)]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 0, 3)
assert_almost_equal(res['Eabs'][0], 50, 0)
def test_raycasting_opaque():
points = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
triangles = [points]
lights = [(100, (0, 0, -1))]
# top
materials = [(0.1,)]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], -1, 0)
assert_almost_equal(res['Eabs'][0], 90, 0)
def test_raycasting_opaque():
points = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
triangles = [points]
lights = [(100, (0, 0, -1))]
# top
materials = [(0.1, )]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], -1, 0)
assert_almost_equal(res['Eabs'][0], 90, 0)
def test_raycasting_two_triangles_no_occlusion():
pts1 = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
pts2 = [(10, 10, 0), (10 - sqrt(2), 10, 0), (10, 10 - sqrt(2), 0)]
triangles = [pts1, pts2]
materials = [(0.06, 0.04)] * 2
# vertical light
lights = [(100, (0, 0, -1))]
res = raycasting(triangles, materials, lights)
for i in (0, 1):
assert_almost_equal(res['area'][i], 1, 3)
assert_almost_equal(res['Eabs'][i], 90, 0)
assert_almost_equal(res['Ei'][i], 100, 0)
def test_raycasting_translucent_flip():
points = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
lights = [(100, (0, 0, -1))]
materials = [(0.06, 0.04)]
# pointing facesup toward source
triangles = [points]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Eabs'][0], 90, 0)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 0, 0)
# pointing faceinf toward source
triangles = [reversed(points)]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Eabs'][0], 90, 0)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 100, 0)
assert_almost_equal(res['Ei_sup'][0], 0, 0)
def test_raycasting_exception():
points = [(0, 0, 0), (1, 0, 0), (0, 1, 0)]
triangles = [points]
# black body
materials = [(0, )]
assert_raises(ValueError,
lambda: raycasting(triangles, materials, debug=DEBUG))
materials = [(0., )]
assert_raises(ValueError,
lambda: raycasting(triangles, materials, debug=DEBUG))
materials = [(0., 0)]
assert_raises(ValueError,
lambda: raycasting(triangles, materials, debug=DEBUG))
materials = [(0., 0, 0, 0.)]
assert_raises(ValueError,
lambda: raycasting(triangles, materials, debug=DEBUG))
# unmatch
materials = [(0.1, )] * 2
assert_raises(ValueError,
lambda: raycasting(triangles, materials, debug=DEBUG))
def test_unresolved_faces():
points = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
lights = [(100, (0, 0, -1))]
triangles = [points]
# reflectance == transmittance
materials = [(0.05, 0.05)]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Eabs'][0], 90, 0)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['Ei_sup'][0], -1, 0)
assert_almost_equal(res['Ei_inf'][0], -1, 0)
# reflectance_product == transmittance_product
materials = [(0.05, 0.01, 0.01, 0.05)]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Eabs'][0], 94, 0)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['Ei_sup'][0], -1, 0)
assert_almost_equal(res['Ei_inf'][0], -1, 0)
def test_raycasting_two_triangles_no_occlusion():
pts1 = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
pts2 = [(10, 10, 0), (10 - sqrt(2), 10, 0), (10, 10 - sqrt(2), 0)]
triangles = [pts1, pts2]
materials = [(0.06, 0.04)] * 2
# vertical light
lights = [(100, (0, 0, -1))]
res = raycasting(triangles, materials, lights)
for i in (0, 1):
assert_almost_equal(res['area'][i], 1, 3)
assert_almost_equal(res['Eabs'][i], 90, 0)
assert_almost_equal(res['Ei'][i], 100, 0)
def test_raycasting_null_triangle_superposed_points():
pts1 = [(0, 0, 0), (1, 0, 0), (1, 0, 0)]
triangles = [pts1]
mats = [green_leaf_PAR]
lights = [(100, (0, 0, -1))]
res = raycasting(triangles, mats, lights)
assert_almost_equal(res['area'][0], 0, 3)
assert isnan(res['Ei'][0])
assert isnan(res['Eabs'][0])
assert isnan(res['Ei_sup'][0])
assert isnan(res['Ei_inf'][0])
def test_triangle_inside():
pts1 = [(0, 1, 0), (0, 0, 0), (1, 0, 0)]
triangles = [pts1]
mats = [green_leaf_PAR]
domain = (-2, -2, 2, 2)
# vertical light
lights = [(100, (0, 0, -1))]
res = raycasting(triangles, mats, lights, domain)
assert_almost_equal(res['area'][0], 0.5, 3)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 0, 3)
def test_unresolved_faces():
points = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
lights = [(100, (0, 0, -1))]
triangles = [points]
# reflectance == transmittance
materials = [(0.05, 0.05)]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Eabs'][0], 90, 0)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['Ei_sup'][0], -1, 0)
assert_almost_equal(res['Ei_inf'][0], -1, 0)
# reflectance_product == transmittance_product
materials = [(0.05, 0.01, 0.01, 0.05)]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Eabs'][0], 94, 0)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['Ei_sup'][0], -1, 0)
assert_almost_equal(res['Ei_inf'][0], -1, 0)
def test_raycasting_translucent_flip():
points = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
lights = [(100, (0, 0, -1))]
materials = [(0.06, 0.04)]
# pointing facesup toward source
triangles = [points]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Eabs'][0], 90, 0)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 0, 0)
# pointing faceinf toward source
triangles = [reversed(points)]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Eabs'][0], 90, 0)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 100, 0)
assert_almost_equal(res['Ei_sup'][0], 0, 0)
def test_diagonal_light():
pts1 = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
triangles = [pts1]
materials = [green_leaf_PAR]
# full intensity on horizontal surface
lights = [(100, (-1, 0, -1))]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei'][0], 100, 0)
# full intensity perpendicular to the source
emission = 100
apparent_emission = emission * cos(radians(45))
lights = [(apparent_emission, (-1, 0, -1))]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei'][0], 100 * cos(radians(45)), 0)
# full intensity perpendicular to the source, inclined triangle
emission = 100
apparent_emission = emission * cos(radians(45))
lights = [(apparent_emission, (-1, 0, -1))]
proj = cos(radians(45))
pts1 = [(0, 0, 0), (0, sqrt(2), 0), (-sqrt(2) * proj, 0, proj * sqrt(2))]
triangles = [pts1]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 0)
assert_almost_equal(res['Ei'][0], 100, 0)
# full intensity on horizontal surface, inclined triangle
lights = [(100, (-1, 0, -1))]
proj = cos(radians(45))
pts1 = [(0, 0, 0), (0, sqrt(2), 0), (-sqrt(2) * proj, 0, proj * sqrt(2))]
triangles = [pts1]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][0], 1, 0)
assert_almost_equal(res['Ei'][0], 141, 0)
def test_triangle_outside():
pts1 = [(0, 1, 0), (0, 0, 0), (1, 0, 0)]
triangles = [pts1]
mats = [green_leaf_PAR]
lights = [(100, (0, 0, -1))]
# just on the right
domain = (-2, -2, 0, 2)
res = raycasting(triangles, mats, lights, domain)
assert_almost_equal(res['area'][0], 0.5, 3)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 0, 3)
# just on the left
domain = (2, -2, 4, 2)
res = raycasting(triangles, mats, lights, domain)
assert_almost_equal(res['area'][0], 0.5, 3)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 0, 3)
# further on the left
domain = (12, -2, 14, 2)
res = raycasting(triangles, mats, lights, domain)
assert_almost_equal(res['area'][0], 0.5, 3)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 0, 3)
# both directions
domain = (12, 12, 14, 14)
res = raycasting(triangles, mats, lights, domain)
assert_almost_equal(res['area'][0], 0.5, 3)
assert_almost_equal(res['Ei_sup'][0], 100, 0)
assert_almost_equal(res['Ei_inf'][0], 0, 3)
def test_two_triangle_confounded():
pts1 = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
triangles = [pts1, pts1]
materials = [(0.06, 0.04)] * 2
lights = [(100, (0, 0, -1))]
# raycasting
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['Ei'][1], 0, 0)
#radiosity
res = radiosity(triangles, materials, lights)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['Ei'][1], 0, 0)
def test_raycasting_two_triangles_one_null():
pts1 = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
pts2 = [(10, 10, 0), (10 - sqrt(2), 10, 0), (10, 10, 0)]
triangles = [pts1, pts2]
mats = [green_leaf_PAR] * 2
# vertical light
lights = [(100, (0, 0, -1))]
res = raycasting(triangles, mats, lights)
assert_almost_equal(res['area'][0], 1, 3)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['area'][1], 0, 3)
assert isnan(res['Ei'][1])
def test_raycasting_infinite_null_triangle_outside_domain():
pts1 = [(0, 1, 0), (0, 0, 0), (1, 0, 0)]
pts2 = [(2, 1, 0), (3, 0, 0), (3, 0, 0)]
triangles = [pts1, pts2]
mats = [green_leaf_PAR] * 2
lights = [(100, (0, 0, -1))]
domain = (-2, -2, 2, 2)
res = raycasting(triangles, mats, lights, domain)
assert_almost_equal(res['area'][0], 0.5, 3)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['area'][1], 0, 3)
assert isnan(res['Ei'][1])
def test_two_triangle_confounded():
pts1 = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
triangles = [pts1, pts1]
materials = [(0.06, 0.04)] * 2
lights = [(100, (0, 0, -1))]
# raycasting
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['Ei'][1], 0, 0)
#radiosity
res = radiosity(triangles, materials, lights)
assert_almost_equal(res['Ei'][0], 100, 0)
assert_almost_equal(res['Ei'][1], 0, 0)
def test_raycasting_two_triangles_full_occlusion():
lower_pts = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
upper_pts = [(0, 0, 1e-5), (sqrt(2), 0, 1e-5), (0, sqrt(2), 1e-5)]
triangles = [lower_pts, upper_pts]
lower, upper = 0, 1
materials = [(0.06, 0.04)] * 2
# vertical light
lights = [(100, (0, 0, -1))]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][lower], 1, 3)
assert_almost_equal(res['Eabs'][lower], 0, 0)
assert_almost_equal(res['Ei'][lower], 0, 0)
assert_almost_equal(res['area'][upper], 1, 3)
assert_almost_equal(res['Eabs'][upper], 90, 0)
assert_almost_equal(res['Ei'][upper], 100, 0)
def test_raycasting_two_triangles_full_occlusion():
lower_pts = [(0, 0, 0), (sqrt(2), 0, 0), (0, sqrt(2), 0)]
upper_pts = [(0, 0, 1e-5), (sqrt(2), 0, 1e-5), (0, sqrt(2), 1e-5)]
triangles = [lower_pts, upper_pts]
lower, upper = 0, 1
materials = [(0.06, 0.04)] * 2
# vertical light
lights = [(100, (0, 0, -1))]
res = raycasting(triangles, materials, lights)
assert_almost_equal(res['area'][lower], 1, 3)
assert_almost_equal(res['Eabs'][lower], 0, 0)
assert_almost_equal(res['Ei'][lower], 0, 0)
assert_almost_equal(res['area'][upper], 1, 3)
assert_almost_equal(res['Eabs'][upper], 90, 0)
assert_almost_equal(res['Ei'][upper], 100, 0)
