python Programming Glossary: dlat

http://stackoverflow.com/questions/3182260/python-geocode-filtering-by-distance

max_distance Given a geocode and a distance provides dlat dlng such that geocode.lat dlat max_distance geocode.lng dlng.. and a distance provides dlat dlng such that geocode.lat dlat max_distance geocode.lng dlng max_distance # implementation.. # uses inverse Haversine or other function return dlat dlng Note I am using the supremum norm for distance. python..

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

lon2 lat2 map radians lon1 lat1 lon2 lat2 dlon lon2 lon1 dlat lat2 lat1 a sin dlat 2 2 cos lat1 cos lat2 sin dlon 2 2 c 2.. lon1 lat1 lon2 lat2 dlon lon2 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.. lon1 lat1 lon2 lat2 # haversine formula dlon lon2 lon1 dlat lat2 lat1 a sin dlat 2 2 cos lat1 cos lat2 sin dlon 2 2 c 2..