vasrap

### Keybase proof

I hereby claim:

  * I am scaraveos on github.
  * I am scaraveos (https://keybase.io/scaraveos) on keybase.
  * I have a public key whose fingerprint is B854 018E 7C5C C6EB 393F  E19F D07F 0280 53AA 7543

To claim this, I am signing this object:

vasrap

# Calculates distance in meters between 2 GPS coordinates
# Ported to Ruby from the Android SDK source
# Original paper explaning the process: http://www.ngs.noaa.gov/PUBS_LIB/inverse.pdf

# Arguments p1, p2 are instances of the class Point below:
# class Point
#   attr_accessor :lat, :lon
# end

def android_distance_port(p1, p2)

vasrap

# Calculates the distance in meters between 2 GPS coordinates
# http://en.wikipedia.org/wiki/Haversine_formula

# Arguments p1, p2 are instances of the class Point below:
# class Point
#   attr_accessor :lat, :lon
# end
  
def haversine_distance(p1, p2)
  lat1 = p1.lat

vasrap

puts "Enter latitude in decimal degrees:"
lat_deg = gets.to_f
puts "Enter longitude in decimal degrees:"
lon_deg = gets.to_f

lon_rad = (lon_deg / 180.0 * Math::PI)
lat_rad = (lat_deg / 180.0 * Math::PI)
sm_a = 6378137.0
x = sm_a * lon_rad
y = sm_a * Math.log((Math.sin(lat_rad) + 1) / Math.cos(lat_rad))