def get_distance_metres(aLocation1, aLocation2):
    dlat = aLocation2.lat - aLocation1.lat
    dlong = aLocation2.lon - aLocation1.lon
    return math.sqrt((dlat*dlat) + (dlong*dlong)) * 1.113195e5
Returns the ground distance in metres between two LocationGlobal objects.
dataset/ETHPy150Open dronekit/dronekit-python/examples/mission_basic/mission_basic.py/get_distance_metres