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#!/usr/bin/env python3
"""
Plot an SLD profile for a sample with a sliced particle layer.
"""
import bornagain as ba
from bornagain import angstrom, ba_plot as bp, deg, nm, sample_tools
import numpy as np
def get_sample():
# materials
vacuum = ba.MaterialBySLD("Vacuum", 0, 0)
material_particle = ba.MaterialBySLD("Particle", 5e-6, 0)
material_substrate = ba.MaterialBySLD("SiSubstrate", 2.0704e-06, 0)
# layers
ambient_layer = ba.Layer(vacuum)
substrate_layer = ba.Layer(material_substrate)
# particle layout
ff = ba.Cone(5*nm, 10*nm, 75*deg)
particle = ba.Particle(material_particle, ff)
layout = ba.ParticleLayout()
layout.addParticle(particle)
iff = ba.Interference2DLattice(ba.SquareLattice2D(10*nm, 0))
layout.setInterference(iff)
ambient_layer.addLayout(layout)
ambient_layer.setNumberOfSlices(20)
# sample
sample = ba.Sample()
sample.addLayer(ambient_layer)
sample.addLayer(substrate_layer)
return sample
if __name__ == '__main__':
sample = get_sample()
zpoints, slds = sample_tools.materialProfile(sample, 400)
bp.plt.figure()
bp.plt.plot(zpoints, np.real(slds))
bp.plt.show()
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