What's the difference between “area” and “BoundingBox” from Redis's source code
问题 http://download.redis.io/redis-stable/deps/geohash-int/geohash_helper.c From the URL above, we know there are two conceptions , one is geohashBoundingBox ,and another is area,My questions is what's the difference between them and why we need them both? Also why sentence "geohashGetCoordRange(&long_range, &lat_range);" is called two times? GeoHashRadius geohashGetAreasByRadius(double longitude, double latitude, double radius_meters) { GeoHashRange long_range, lat_range; GeoHashRadius radius =