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"""
Test of rotation/positioning of simple cubic particle.
Original particle is compared with the one obtained.
"""
import unittest
import PyFuTestInfrastructure as infrastruct
from bornagain import *
class RotationsCubeTest(unittest.TestCase):
"""
Test of rotations and translations of simple cube in three layers system
"""
def get_sample(self,
formfactor,
rot=None,
pos=None,
layout_rot=None,
layout_pos=None,
add_to="Vacuum"):
mParticle = RefractiveMaterial("Particle", 6e-4, 2e-8)
mMiddle = RefractiveMaterial("MidleLayer", 5e-5, 2e-8)
mSubstrate = RefractiveMaterial("Substrate", 6e-6, 2e-8)
particle = Particle(mParticle, formfactor)
if rot:
particle.rotate(rot)
if pos:
particle.translate(pos)
if layout_rot:
particle.rotate(layout_rot)
if layout_pos:
particle.translate(layout_pos)
layout = ParticleLayout()
layout.addParticle(particle)
vacuum_layer = Layer(Vacuum())
middle_layer = Layer(mMiddle, 50)
substrate = Layer(mSubstrate)
if add_to == "Vacuum":
vacuum_layer.addLayout(layout)
else:
middle_layer.addLayout(layout)
sample = Sample()
sample.addLayer(vacuum_layer)
sample.addLayer(middle_layer)
sample.addLayer(substrate)
return sample
def get_result(self, data, add_to="Vacuum"):
ff = data[0]
rot = data[1]
pos = data[2]
layout_rot = data[3]
layout_pos = data[4]
sample = self.get_sample(ff, rot, pos, layout_rot, layout_pos, add_to)
# simulation = self.get_simulation(sample)
simulation = infrastruct.get_simulation_MiniGISAS(sample)
return simulation.simulate()
def testRotationZ(self):
"""
Cube is Z-rotated either through setRotation method or through particle layout.
The result is compared with unrotated cube.
"""
box = Box(10, 10, 10)
data_to_test = [
# ff rot pos layout_rot layout_pos
(box, None, None, None, None), # reference
(box, RotationZ(90. * deg), None, None, None), # rotating particle
(box, RotationZ(-90. * deg), None, None, None),
(box, RotationZ(180. * deg), None, None, None),
(box, None, None, RotationZ(90. * deg),
None), # rotating through layout
(box, RotationZ(45. * deg), None, RotationZ(45. * deg),
None), # cumulative rotation
]
reference = self.get_result(data_to_test[0])
for i in range(1, len(data_to_test)):
simulated = self.get_result(data_to_test[i])
self.assertTrue(checkRelativeDifference(simulated, reference, 1e-10))
def testRotationY(self):
"""
Cube is Y-rotated either through setRotation method or through particle layout.
Additional translation is applied if necessary.
The result is compared with unrotated cube.
"""
box = Box(10, 10, 10)
data_to_test = [
# ff rot pos layout_rot layout_pos
(box, None, None, None, None), # reference
(box, RotationY(90. * deg), R3(0, 0, 5), None,
None), # rotating and translating
(box, None, None, RotationY(90. * deg),
R3(0, 0, 5)), # rotating and translating
(box, RotationY(90. * deg), None, None,
R3(0, 0, 5)), # rotating and translating
(box, RotationY(45. * deg), R3(0, 0, 0), RotationY(45. * deg),
R3(0, 0, 5)), # rotating and translating
]
reference = self.get_result(data_to_test[0])
for i in range(1, len(data_to_test)):
simulated = self.get_result(data_to_test[i])
self.assertTrue(checkRelativeDifference(simulated, reference, 1e-10))
def testRotationX(self):
"""
Cube is Z-rotated either through setRotation method or through particle layout.
Additional translation is applied if necessary.
The result is compared with unrotated cube.
"""
box = Box(10, 10, 10)
data_to_test = [
# ff rot pos layout_rot layout_pos
(box, None, None, None, None), # reference
(box, RotationX(90. * deg), R3(0, 0, 5), None,
None), # rotating and translating
(box, None, None, RotationX(90. * deg),
R3(0, 0, 5)), # rotating and translating
(box, RotationX(90. * deg), None, None,
R3(0, 0, 5)), # rotating and translating
(box, RotationX(45. * deg), R3(0, 0, 0), RotationX(45. * deg),
R3(0, 0, 5)), # rotating and translating
]
reference = self.get_result(data_to_test[0])
for i in range(1, len(data_to_test)):
simulated = self.get_result(data_to_test[i])
self.assertTrue(checkRelativeDifference(simulated, reference, 1e-10))
def testRotationsInMiddleLayer(self):
"""
"""
box = Box(10, 10, 10)
data_to_test = [
# ff rot pos layout_rot layout_pos
(box, None, R3(0, 0, -25), None, None), # reference
(box, RotationX(90. * deg), R3(0, 0, -20), None,
None), # rotating and translating
]
reference = self.get_result(data_to_test[0])
for i in range(1, len(data_to_test)):
simulated = self.get_result(data_to_test[i])
self.assertTrue(checkRelativeDifference(simulated, reference, 1e-10))
if __name__ == '__main__':
unittest.main()
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