# Copyright (c) 2016 Manfred Moitzi
# License: MIT License
from __future__ import unicode_literals
import ezdxf

# 8 corner vertices
p = [
    (0, 0, 0),
    (1, 0, 0),
    (1, 1, 0),
    (0, 1, 0),
    (0, 0, 1),
    (1, 0, 1),
    (1, 1, 1),
    (0, 1, 1),
]

dwg = ezdxf.new('AC1015')  # mesh requires the DXF 2000 or newer format
msp = dwg.modelspace()
mesh = msp.add_mesh()

with mesh.edit_data() as mesh_data:
    mesh_data.add_face([p[0], p[1], p[2], p[3]])
    mesh_data.add_face([p[4], p[5], p[6], p[7]])
    mesh_data.add_face([p[0], p[1], p[5], p[4]])
    mesh_data.add_face([p[1], p[2], p[6], p[5]])
    mesh_data.add_face([p[3], p[2], p[6], p[7]])
    mesh_data.add_face([p[0], p[3], p[7], p[4]])
    mesh_data.optimize()

dwg.saveas("cube_mesh_2.dxf")
