Slon = radians(float(input("Ending longitude: ")))Įlat = radians(float(input("Starting latitude: ")))Įlon = radians(float(input("Ending longitude: ")))ĭist_in_km = 6371.01 * acos(sin(slat)*sin(elat) + cos(slat)*cos(elat)*cos(slon - elon))ĭist_in_miles = dist_in_km * miles_per_kilometerĬan anyone think of a way to implement this knowing the slat, slon and dist_in_miles before hand (20 miles in the above example), so that instead of calculating dist_in_miles it determines the elat and elon? The following can take a starting latitude and longitude, along with an ending latitude and longitude, and calculate the distance between them: slat = radians(float(input("Starting latitude: "))) # to explain this :input() gets the starting latitude, float() converts this to a floating point number and radians() converts this from degrees to radians If you read this far and already have a solution you can skip what is below, below is an explanation of what I have so far written in the Python programming language. So say a user has searched zip code '99929' and wants to see all posts within 20 miles of this zip code. I am have a file with every zip code in the US and their respective latitude and longitude. As you can tell I spend most of my time on stack's programming sites, but this I feel is a math issue, so I am hoping someone can help me. I am trying to add a feature that allows them to see posts within a certain mile radius of their zip(feature you see on real estate sites, job boards, etc). Summary: I am creating a website, this site functions off a user searching a zip code and seeing results in that zip.
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