HollowSpheres: use standard_samples

Examples/scatter2d/HollowSpheres.py

@@ -3,32 +3,16 @@
 SAS by hollow spheres
 """
 import bornagain as ba
-from bornagain import ba_plot as bp, deg, nm, std_simulations
+from bornagain import ba_plot as bp, deg, nm, std_samples, std_simulations
 
 
 def get_sample():
-    # Define materials
-    material_Particle = ba.RefractiveMaterial("Particle", 6e-05, 2e-08)
-    material_Vacuum = ba.RefractiveMaterial("Vacuum", 0, 0)
+    mat = ba.RefractiveMaterial("Particle", 6e-05, 2e-08)
 
-    # Define particle
     ff = ba.HollowSphere(4*nm, 1*nm)
-    particle = ba.Particle(material_Particle, ff)
+    particle = ba.Particle(mat, ff)
 
-    # Define particle layouts
-    layout = ba.ParticleLayout()
-    layout.addParticle(particle)
-    layout.setTotalParticleSurfaceDensity(0.01)
-
-    # Define layers
-    layer = ba.Layer(material_Vacuum)
-    layer.addLayout(layout)
-
-    # Define sample
-    sample = ba.MultiLayer()
-    sample.addLayer(layer)
-
-    return sample
+    return std_samples.sas_sample_with_particle(particle)
 
 
 if __name__ == '__main__':