Class: SimpleMetarParser::Pressure

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

Constant Summary collapse

HG_INCH_TO_HPA = 
1013.0/2992.1
HG_MM_TO_HPA = 
HG_INCH_TO_HPA * 25.4

Instance Attribute Summary collapse

Attributes inherited from Base

#parent

Instance Method Summary collapse

Methods inherited from Base

#initialize, #post_process

Constructor Details

This class inherits a constructor from SimpleMetarParser::Base

Instance Attribute Details

#pressure ⇒ Object (readonly)

Returns the value of attribute pressure.



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# File 'lib/simple_metar_parser/metar/pressure.rb', line 13

def pressure
  @pressure
end

Instance Method Details

#decode_split(s) ⇒ Object 



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# File 'lib/simple_metar_parser/metar/pressure.rb', line 15

def decode_split(s)
  # Europe
  if s =~ /Q(\d{4})/
    @pressure = $1.to_i
  end
  # US
  if s =~ /A(\d{4})/
    #1013 hPa = 29.921 inNg
    @pressure=(($1.to_f) * HG_INCH_TO_HPA).round
  end
end

#hg_inch ⇒ Object

inches of Hg



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# File 'lib/simple_metar_parser/metar/pressure.rb', line 47

def hg_inch
  self.pressure_hg_inch
end

#hg_mm ⇒ Object

mm of Hg



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# File 'lib/simple_metar_parser/metar/pressure.rb', line 42

def hg_mm
  self.pressure_hg_mm
end

#hpa ⇒ Object

Pressure in hPa



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# File 'lib/simple_metar_parser/metar/pressure.rb', line 37

def hpa
  self.pressure
end

#pressure_hg_inch ⇒ Object 



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# File 'lib/simple_metar_parser/metar/pressure.rb', line 32

def pressure_hg_inch
  (@pressure / HG_INCH_TO_HPA).round
end

#pressure_hg_mm ⇒ Object 



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# File 'lib/simple_metar_parser/metar/pressure.rb', line 27

def pressure_hg_mm
  return nil if self.pressure.nil?
  (@pressure / HG_MM_TO_HPA).round
end

#reset ⇒ Object 



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# File 'lib/simple_metar_parser/metar/pressure.rb', line 9

def reset
  @pressure = nil
end