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python Programming Glossary: dlonPython geocode filtering by distance http://stackoverflow.com/questions/3182260/python-geocode-filtering-by-distance lat1 radians lat1 lat2 radians lat2 dlat lat2 lat1 dlon radians lon2 lon1 h haversine dlat cos lat1 cos lat2 haversine.. lon2 lon1 h haversine dlat cos lat1 cos lat2 haversine dlon return RADIUS inverse_haversine h def bounding_box lat lon distance.. arg must be in same units as RADIUS. # Returns dlat dlon such that # no points outside lat dlat or outside lon dlon #..
Haversine Formula in Python (Bearing and Distance between two GPS points) http://stackoverflow.com/questions/4913349/haversine-formula-in-python-bearing-and-distance-between-two-gps-points lon1 lat1 lon2 lat2 map radians lon1 lat1 lon2 lat2 dlon lon2 lon1 dlat lat2 lat1 a sin dlat 2 2 cos lat1 cos lat2 sin.. lon1 dlat lat2 lat1 a sin dlat 2 2 cos lat1 cos lat2 sin dlon 2 2 c 2 atan2 sqrt a sqrt 1 a Base 6371 c Bearing atan2 cos.. lat2 map radians lon1 lat1 lon2 lat2 # haversine formula dlon lon2 lon1 dlat lat2 lat1 a sin dlat 2 2 cos lat1 cos lat2 sin..
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