Class: SimpleMetarParser::Clouds

Inherits:
Base
  • Object
show all
Defined in:
lib/simple_metar_parser/metar/clouds.rb

Constant Summary collapse

CLOUD_CLEAR =

Cloud level - clear sky

(0 * 100.0 / 8.0).round
CLOUD_FEW =

Cloud level - few clouds

(1.5 * 100.0 / 8.0).round
CLOUD_SCATTERED =

Cloud level - scattered

(3.5 * 100.0 / 8.0).round
CLOUD_BROKEN =

Cloud level - broken

(6 * 100.0 / 8.0).round
CLOUD_OVERCAST =

Cloud level - overcast

(8 * 100.0 / 8.0).round
CLOUD_NOT_SIGN =

Cloud level - not significant

(0.5 * 100.0 / 8.0).round

Instance Attribute Summary collapse

Attributes inherited from Base

#parent

Instance Method Summary collapse

Methods inherited from Base

#initialize

Constructor Details

This class inherits a constructor from SimpleMetarParser::Base

Instance Attribute Details

#clouds ⇒ Object (readonly)

Returns the value of attribute clouds.



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# File 'lib/simple_metar_parser/metar/clouds.rb', line 24

def clouds
  @clouds
end

#clouds_max ⇒ Object (readonly)

Returns the value of attribute clouds_max.



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# File 'lib/simple_metar_parser/metar/clouds.rb', line 24

def clouds_max
  @clouds_max
end

Instance Method Details

#decode_split(s) ⇒ Object 



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# File 'lib/simple_metar_parser/metar/clouds.rb', line 26

def decode_split(s)
  if s =~ /^(SKC|FEW|SCT|BKN|OVC|NSC)(\d{3}?)$/
    cl = case $1
           when "SKC" then
             CLOUD_CLEAR
           when "FEW" then
             CLOUD_FEW
           when "SCT" then
             CLOUD_SCATTERED
           when "BKN" then
             CLOUD_BROKEN
           when "OVC" then
             CLOUD_OVERCAST
           when "NSC" then
             CLOUD_NOT_SIGN
           else
             CLOUD_CLEAR
         end

    cloud = {
      :coverage => cl
    }
    # optionally cloud bottom
    unless '' == $2.to_s
      cloud[:bottom] = $2.to_i * 30
    end

    @clouds << cloud
    @clouds.uniq!
  end

  # obscured by clouds, vertical visibility
  if s =~ /^(VV)(\d{3}?)$/
    @clouds << {
      :coverage => CLOUD_OVERCAST,
      :vertical_visibility => $2.to_i * 30
    }

    @clouds.uniq!
  end

  if s =~ /^(CAVOK)$/
    # everything is awesome :)
  end

end

#post_process ⇒ Object

Calculate numeric description of clouds



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# File 'lib/simple_metar_parser/metar/clouds.rb', line 74

def post_process
  @clouds_max = 0
  @clouds.each do |c|
    @clouds_max = c[:coverage] if @clouds_max < c[:coverage]
  end
end

#reset ⇒ Object 



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# File 'lib/simple_metar_parser/metar/clouds.rb', line 19

def reset
  @clouds = Array.new
  @clouds_max = nil
end