bbox2.py

import numpy as np

def sv_main(verts=[]):
    in_sockets = [['v', 'Verts', verts]]
    out_sockets = [['v', 'Verts', []], ['s', 'Edges', []]]
    
    if not verts:
        return in_sockets, out_sockets
    
    # get numpy array for fastness
    nv = np.array(verts)
    bbox = []
    for dim in range(3):
        bbox.extend([nv[:,dim].min(), nv[:,dim].max()])
    
    # order is important
    x = 1,1,0,0,1,1,0,0
    y = 3,2,2,3,3,2,2,3
    z = 4,4,4,4,5,5,5,5
    verts_out = [tuple(bbox[i] for i in j) for j in zip(x,y,z)]
    edges_out = [
        (0,1),(1,2),(2,3),(3,0), # bottom edges
        (4,5),(5,6),(6,7),(7,4), # top edges
        (0,4),(1,5),(2,6),(3,7)  # sides
        ]
    out_sockets[0][2] = [verts_out]
    out_sockets[1][2] = [edges_out]
    
    return in_sockets, out_sockets