def m2px(self, val):
        if self.refscale == 0.0:
            return 0.0
        return 100.0 * (val / self.refscale)
Initialize a 3 level deque data structure.
dataset/ETHPy150Open coreemu/core/daemon/core/location.py/CoreLocation.m2px--crossover with--dataset/ETHPy150Open beloglazov/openstack-neat/neat/locals/overload/mhod/multisize_estimation.py/init_deque_structure