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ruby distance between two latitude longitude

patrick204nqh answered on November 2, 2022 Popularity 3/10 Helpfulness 1/10

answer ruby distance between two latitude longitude

ruby distance between two latitude longitude

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def distance(**opts)
  if (opts[:lat1] == opts[:lat2]) && (opts[:lon1] == opts[:lon2])
    return 0.0
  else
    theta = opts[:lon1] - opts[:lon2]
    dist = Math.sin(opts[:lat1] * Math::PI / 180) * Math.sin(opts[:lat2] * Math::PI / 180) + Math.cos(opts[:lat1] * Math::PI / 180) * Math.cos(opts[:lat2] * Math::PI / 180) * Math.cos(theta * Math::PI / 180)
    dist = Math.acos(dist)
    dist = dist * 180 / Math::PI
    miles = dist * 60 * 1.1515
    unit = opts[:unit]&.upcase

    if unit == 'K' # kilometers
      return miles * 1.609344
    elsif unit == 'N' # nautical miles
      return miles * 0.8684
    else # statute miles
      return miles
    end
  end
end

# distance(lat1: 47.5706210, lon1: -52.69617, lat2: 47.5706210, lon2: -52.72617, unit: 'K')
#=> 2.250524666738846

Popularity 3/10 Helpfulness 1/10 Language ruby

Source: Grepper

Tags: between distance latitude-longitude ruby

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Contributed on Nov 02 2022

patrick204nqh

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ruby distance between two latitude longitude

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