old_contents: #  Copyright (c) 2022, Manfred Moitzi
  #  License: MIT License
  
  from pathlib import Path
  import ezdxf
  from ezdxf.render import forms
  from ezdxf.acis import api as acis
  
  DIR = Path("~/Desktop/Outbox").expanduser()
  if not DIR.exists():
      DIR = Path(".")
  
  
  def run(version: str):
      doc = ezdxf.new(version, setup=True)
      msp = doc.modelspace()
  
      # create the DXF 3DSOLID entity
      solid3d = msp.add_3dsolid()
      # create the ACIS body entity from the cube-mesh
      cube = forms.cube()
      body = acis.body_from_mesh(cube)
      acis.export_dxf(solid3d, [body])
  
      doc.set_modelspace_vport(5)
      doc.saveas(DIR / f"acis_cube_{version}.dxf")
  
  
  def main():
      for version in ["R2000", "R2004", "R2007", "R2010", "R2013", "R2018"]:
          run(version)
  
  
  if __name__ == '__main__':
      main()
  
new_contents: # Copyright (c) 2022, Manfred Moitzi
  # License: MIT License
  
  import pathlib
  import ezdxf
  from ezdxf.render import forms
  from ezdxf.acis import api as acis
  
  CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
  if not CWD.exists():
      CWD = pathlib.Path(".")
  
  # ------------------------------------------------------------------------------
  # This example shows how to create a simple ACIS cube for all supported DXf versions.
  #
  # docs: https://ezdxf.mozman.at/docs/tools/acis.html
  # ------------------------------------------------------------------------------
  
  
  def run(version: str):
      doc = ezdxf.new(version, setup=True)
      msp = doc.modelspace()
  
      # create the DXF 3DSOLID entity
      solid3d = msp.add_3dsolid()
      # create the ACIS body entity from the cube-mesh
      cube = forms.cube()
      body = acis.body_from_mesh(cube)
      acis.export_dxf(solid3d, [body])
  
      doc.set_modelspace_vport(5)
      doc.saveas(CWD / f"acis_cube_{version}.dxf")
  
  
  def main():
      for version in ["R2000", "R2004", "R2007", "R2010", "R2013", "R2018"]:
          run(version)
  
  
  if __name__ == '__main__':
      main()
  
subject: refactor example acis_cube_all_dxf_versions.py