pynetdesign.modelling.utils.wave_mode_phases# pynetdesign.modelling.utils.wave_mode_phases(wave_mode)[source]# Expand a wave mode into the physical phases that must be evaluated. Parameters: wave_modestrWave mode, see normalize_wave_mode. Returns: phasestuple of strPhases to evaluate, drawn from 'P', 'SV' and 'SH'.