def expand(self, axisNames):
        for k in axisNames:
            if not self.has_key(k):
                self[k] = 0
Expand the location with zero values for all axes in axisNames that aren't filled in the current location.
dataset/ETHPy150Open LettError/MutatorMath/Lib/mutatorMath/objects/location.py/Location.expand