class GeoDistance::Flat

Public Class Methods

distance(*args) click to toggle source

Calculate distance using Flat earth formula, returns distance in whatever unit is specified (kms by default)

# File lib/geo-distance/formula/flat.rb, line 8
def self.distance *args
  from, to, units = get_points(args)

  return 0 if from == to # return 0.0 if points are have the same coordinates

  Math.sqrt(
    (units_per_latitude_degree(units) * (from.lat - to.lat))**2 +
    (units_per_longitude_degree(from.lat, units) * (from.lng - to.lng))**2
  )
end