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#!/usr/bin/env python3
"""
Functional test: Magnetic cylinders in DWBA with zero magnetic field
"""
import bornagain as ba
from bornagain import ba_plot as bp, deg, R3, nm
def get_sample():
# Materials
vacuum = ba.RefractiveMaterial("Vacuum", 0, 0)
material_substrate = ba.RefractiveMaterial("Substrate", 15e-6, 0)
B = R3(0, 1e6, 0)
material_particle = ba.RefractiveMaterial("magParticle", 5e-6, 0, B)
# Particles
cylinder_ff = ba.Cylinder(5*nm, 5*nm)
cylinder = ba.Particle(material_particle, cylinder_ff)
particle_layout = ba.ParticleLayout()
particle_layout.addParticle(cylinder, 1)
# Multilayer
vacuum_layer = ba.Layer(vacuum)
vacuum_layer.addLayout(particle_layout)
substrate_layer = ba.Layer(material_substrate, 0)
sample = ba.Sample()
sample.addLayer(vacuum_layer)
sample.addLayer(substrate_layer)
return sample
def get_simulation(sample, pol_dir):
z_up = R3(0, 0, 1)
n = 11
beam = ba.Beam(1e9, 0.1*nm, 0.2*deg)
detector = ba.SphericalDetector(n, -1*deg, 1*deg, n, 0, 2*deg)
beam.setPolarization(pol_dir)
detector.setAnalyzer(z_up)
return ba.ScatteringSimulation(beam, sample, detector)
def simulate(title, pol_dir):
sample = get_sample()
simulation = get_simulation(sample, pol_dir)
result = simulation.simulate()
result.setTitle(title)
return result
if __name__ == '__main__':
z_up = R3(0, 0, 1)
z_dn = R3(0, 0, -1)
results = []
results.append(simulate('++', z_up))
results.append(simulate('+-', z_dn))
results.append(simulate('-+', z_up))
results.append(simulate('--', z_dn))
from bornagain import ba_check
ba_check.persistence_test(results)
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