What better way do you suggest? Either you have to check them or some library code (I'm not aware of) has to. A look should be able to check 1000 locations in no time at all...
The best thing would be an algorithm, which gets down from a higher level (e.g. all locations, which begin with 50 degrees North) to a lower level. I'm wondering, if this is already built in somewhere.
The best thing would be an algorithm, which gets down from a higher level (e.g. all locations, which begin with 50 degrees North) to a lower level. I'm wondering, if this is already built in somewhere.