def __len__(self):
        return self.num_interior_rings + 1
Converts from a time in seconds to absolute tick using
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/contrib/gis/geos/polygon.py/Polygon.__len__--crossover with--dataset/ETHPy150Open craffel/pretty-midi/pretty_midi/pretty_midi.py/PrettyMIDI.time_to_tick