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Showing posts from September 15, 2023

How to Calculate One Lat, Lon Fall Within Certain Diameter of Other Lat, Lon

  To check if latitude and longitude values fall within a certain area defined by a central latitude and longitude and a given diameter (e.g., 5 km), you can use the Haversine formula . The Haversine formula calculates the distance between two points on the Earth's surface (given their latitude and longitude) as if they were on a spherical Earth. You can use it to calculate distances and check if points fall within a specified radius. Here's a Python function that you can use to check if latitude and longitude values fall within a specified area: ```python import math def haversine(lat1, lon1, lat2, lon2): # Radius of the Earth in km R = 6371.0 # Convert latitude and longitude from degrees to radians lat1 = math.radians(lat1) lon1 = math.radians(lon1) lat2 = math.radians(lat2) lon2 = math.radians(lon2) # Haversine formula dlon = lon2 - lon1 dlat = lat2 - lat1 a = math.sin(dlat / 2)**2 + math.cos(lat1) * math.cos(lat2) * math.sin(...