コード例 #1
0
from molecular_builder import create_bulk_crystal, carve_geometry, fetch_prepared_system
from molecular_builder.geometry import BerkovichGeometry, CylinderGeometry

slab = fetch_prepared_system("vashishta_1990_like_amorphous_silica/quench_950K")
slab.cell[2,2] = 80 # Expand cell in z direction to fit indenter 

indenter = create_bulk_crystal("diamond", (144, 144, 80), round="down")
carve_geometry(indenter, BerkovichGeometry((75, 75, 40)), side="out")
carve_geometry(indenter, CylinderGeometry((75, 75, 50), 60, 200, orientation=(0,0,1)), side="out")

atoms = slab+indenter

atoms.write("indenter_and_glass.data", format="lammps-data")
コード例 #2
0
import numpy as np
from molecular_builder import fetch_prepared_system, carve_geometry
from molecular_builder.geometry import SphereGeometry
from pack_water import PackWater
from pack_water.geometry import BoxGeometry, Fixed
import ase

# Fetch amorphous silica
silica = fetch_prepared_system("amorphous_silica_1")

num_spheres = 20

for sphere in range(num_spheres):
    i, j, k, l = np.random.uniform(size=4)
    x, y, z, r = i * 357, j * 143, k * 143, l * 30
    geometry = SphereGeometry([x, y, z],
                              r,
                              periodic_boundary_condition=(True, True, True))
    tmp_carved = carve_geometry(silica, geometry, side="in")
    print(f"tmp carved: {tmp_carved}")

# Write amorphous silica with voids to pdb-filetype
silica.write("amorphous_void.pdb", format="proteindatabank")

# Fill voids with water
packer = PackWater(filetype="pdb")
packer.append(Fixed("amorphous_void.pdb", 0, 0, 0, number=1))
packer.append(BoxGeometry(0, 0, 0, 358, 143.2, 143.2, density=0.998))
packer(outfile="water.data")
コード例 #3
0
from molecular_builder import create_bulk_crystal, carve_geometry, fetch_prepared_system, write
from molecular_builder.geometry import BerkovichGeometry, CylinderGeometry

slab = fetch_prepared_system(
    "vashishta_1990_like_amorphous_silica/quench_950K",
    type_mapping=[(1, 14), (2, 8)])
print(slab.numbers)

slab.cell[2, 2] = 80  # Expand cell in z direction to fit indenter

indenter = create_bulk_crystal("diamond", (144, 144, 80), round="down")
carve_geometry(indenter, BerkovichGeometry((75, 75, 40)), side="out")
carve_geometry(indenter,
               CylinderGeometry((75, 75, 50), 60, 200, orientation=(0, 0, 1)),
               side="out")

atoms = slab + indenter

write(atoms,
      "indenter_over_silica.png",
      bond_specs=[("Si", "O", 1.9)],
      camera_dir=(2, 1.5, -0.4),
      atom_radii=[("Si", 0.2), ("O", 0.2)],
      size=(1280, 960))
コード例 #4
0
from molecular_builder import fetch_prepared_system, write

atoms = fetch_prepared_system(
    "vashishta_1990_like_amorphous_silica_quench_300K",
    type_mapping=[[1, 14], [2, 8]])
write(atoms, "amorphous_silica.png")