Two Surface Object Export

The Sub-surface Translation example surface.

In this case, two objects are created which are then colored separately in Blender.

import numpy as np
import s3dlib.surface as s3d

#.. Two Surface Object Export

atomPos = {}

atomPos['Chloride'] = [
    [ 1, 1, 1], [-1,-1, 1], [-1, 1, 1], [ 1,-1, 1] ,
    [ 1, 1,-1], [-1,-1,-1], [-1, 1,-1], [ 1,-1,-1] ,
    [ 1, 0, 0], [ 0, 1, 0], [-1, 0, 0], [ 0,-1, 0] , [ 0, 0, 1], [ 0, 0,-1]    ]

atomPos['Sodium'] = [
    [ 1, 0, 1], [-1, 0, 1], [ 0, 1, 1], [ 0,-1, 1] ,
    [ 1, 1, 0], [-1,-1, 0], [-1, 1, 0], [ 1,-1, 0] , [ 0, 0, 0] ,  
    [ 1, 0,-1], [-1, 0,-1], [ 0, 1,-1], [ 0,-1,-1]   ]

rez = 3
sz = 0.67
cells = { 'Chloride':None, 'Sodium':None }   

for elemName, elemPos in atomPos.items() :
    unitCell = None
    for pos in elemPos :
        atom = s3d.SphericalSurface(rez)
        atom.transform(scale=[sz,sz,sz] , translate=pos)
        if unitCell is None : unitCell = atom
        else : unitCell += atom
    sz = 1.0 - sz
    cells[elemName] = unitCell

s3d.save_surfgeom_to_obj('obj_files/cl_cell.obj',cells['Chloride'])
s3d.save_surfgeom_to_obj('obj_files/na_cell.obj',cells['Sodium'])