Get transmembrane tendency

import molsysmt as msm

molecular_system = msm.convert(msm.systems['T4 lysozyme L99A']['181l.h5msm'],
                               selection='molecule_type=="protein"')

tt_groups = msm.physchem.get_transmembrane_tendency(molecular_system, element='group',
                                                    definition='zhao')

view = msm.view(molecular_system)
msm.thirds.nglview.set_color_by_value(view, values=tt_groups, mid_value=0.0)

view