Module: GeoUnits::Numeric::Normalizer

Extended by:
Normalizer
Included in:
Normalizer, Numeric
Defined in:
lib/geo_units/numeric/normalizer.rb

Instance Method Summary collapse

Instance Method Details

#normalize_deg(shift = 0) ⇒ Object Also known as: normalize_degrees 



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# File 'lib/geo_units/numeric/normalizer.rb', line 54

def normalize_deg shift = 0
  (self + shift) % 360 
end

#normalize_lat ⇒ Object

all degrees between -90 and 90



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# File 'lib/geo_units/numeric/normalizer.rb', line 25

def normalize_lat
  case self 
  when -360, 0, 360
    0
  when -180, 180
    0
  when -360..-270
    self % 90
  when -270..-180
    90 - (self % 90)
  when -180..-90
    - (self % 90)
  when -90..0
    -90 + (self % 90)
  when 0..90
    self
  when 90..180
    self % 90
  when 180..270
    - (self % 90)
  when 270..360
    - 90 + (self % 90)
  else
    return (self % 360).normalize_lat if self > 360
    return (360 - (self % 360)).normalize_lat if self < -360
    raise ArgumentError, "Degrees #{self} out of range"
  end
end

#normalize_lng ⇒ Object

all degrees between -180 and 180



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# File 'lib/geo_units/numeric/normalizer.rb', line 5

def normalize_lng
  case self
  when -360, 0, 360
    0
  when -360..-180
    self % 180
  when -180..0
    -180 + (self % 180)
  when 0..180
    self
  when 180..360
    self % 180
  else
    return (self % 360).normalize_lng if self > 360
    return (360 - (self % 360)).normalize_lng if self < -360
    raise ArgumentError, "Degrees #{self} out of range"
  end
end