I am building a system using ruby on rails and we rely on geocoder to work with latitude and longitude and addresses.
I am using geocoder to calculate the distance between two points like this:
Geocoder::Calculations.distance_between([lat1, lon1], [lat2, lon2])
But the result comes in miles. So i had to convert from miles to Km. The geocoder docs says that:
Geocoder::Calculations.to_kilometers
Is deprecated and I need to multiply by this constant:
Geocoder::Calculations.km_in_mi
And that is the problem when I do this:
Geocoder::Calculations.distance_between([lat1, lon1], [lat2, lon2]) * Geocoder::Calculations.km_in_mi
The result is really imprecise, instead I use the deprecated way and the result works perfectly like this:
Geocoder::Calculations.to_kilometers(Geocoder::Calculations.distance_between([lat1, lon1], [lat2, lon2]))
So, I was wondering why is this happening? Am I missing something or making a silly mistake? Is it a problem to use Geocoder::Calculations.to_kilometers?
Thanks in advance