# Lucy example

Viewing Stanford 3D Scanning Repository lucy model

Python source code: `lucy.py`

    # Copyright (c) 2014-2020, Enthought, Inc.
    # Standard library imports
    import os
    from os.path import join

    # Enthought library imports
    from mayavi import mlab

    ### Download the lucy data, if not already on disk ############################
    if not os.path.exists('lucy.tar.gz'):
        # Download the data
        try:
            from urllib import urlopen
        except ImportError:
            from urllib.request import urlopen
        print("Downloading lucy model, Please Wait (307MB)")
        opener = urlopen(
                'http://graphics.stanford.edu/data/3Dscanrep/lucy.tar.gz')
        open('lucy.tar.gz', 'wb').write(opener.read())

    # Extract the data
    import tarfile
    lucy_tar_file = tarfile.open('lucy.tar.gz')
    try:
        os.mkdir('lucy_data')
    except:
        pass
    lucy_tar_file.extractall('lucy_data')
    lucy_tar_file.close()

    # Path to the lucy ply file
    lucy_ply_file = join('lucy_data', 'lucy.ply')

    # Render the lucy ply file
    mlab.pipeline.surface(mlab.pipeline.open(lucy_ply_file))
    mlab.show()

    import shutil
    shutil.rmtree('lucy_data')