def hc_laplacian(script):
filter_xml = '<STR_LIT>'<EOL>util.write_filter(script, filter_xml)<EOL>return None<EOL>
HC Laplacian Smoothing, extended version of Laplacian Smoothing, based
        on the paper of Vollmer, Mencl, and Muller

    Layer stack:
        No impacts

    MeshLab versions:
        2016.12
        1.3.4BETA