Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/itudes.rb

Instance Method Summary collapse

Instance Method Details

#to_itude(strict = false) ⇒ Float

Returns the multitude or ‘nil` if the convertion was not possible.

Returns:

  • (Float) —

    the multitude or ‘nil` if the convertion was not possible.



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# File 'lib/itudes.rb', line 17

def to_itude strict = false
  case self
  when /^(?<val>[-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?)$/ # -53.133333
    $~[:val].to_f
  when /(?<deg>\d+)[°\s]*(?<min>\d*)['’′\s]*(?<sec>\d*)["”″\s]*(?<ss>[NESWnesw]?)$/ # 53°11′18″N, 000°08′00″E
    f = $~[:deg].to_f + $~[:min].to_f / 60.0 + $~[:sec].to_f / 3600.0
    ($~[:ss].to_s.downcase =~ /[sw]/).nil? ? f : -f
  else
    strict ? raise(TypeError.new "no implicit conversion of string “#{self}” to [Lat,Long]itude") : nil
  end
end